Moodle release 3.10.1

- PHP 7.3 required.
- Moodle 3.6 required.
- SQL*Server 2017 (aka, 14.0) required.
- Sodium PHP extension required.

.eslintignore

@@ -19,6 +19,7 @@ lib/editor/tinymce/plugins/spellchecker/rpc.php
 lib/editor/tinymce/tiny_mce/
 lib/mlbackend/php/phpml/
 lib/adodb/
+lib/behat/axe/
 lib/bennu/
 lib/evalmath/
 lib/phpspreadsheet/
@@ -66,6 +67,9 @@ lib/babel-polyfill/
 lib/polyfills/
 lib/emoji-data/
 lib/plist/
+lib/zipstream/
+lib/php-enum/
+lib/http-message/
 media/player/videojs/amd/src/video-lazy.js
 media/player/videojs/amd/src/Youtube-lazy.js
 media/player/videojs/videojs/
@@ -88,5 +92,4 @@ theme/boost/amd/src/bootstrap/tab.js
 theme/boost/amd/src/bootstrap/toast.js
 theme/boost/amd/src/bootstrap/tooltip.js
 theme/boost/amd/src/bootstrap/util.js
-theme/boost/amd/src/tether.js
 theme/boost/scss/fontawesome/

.github/workflows/config-template.php

@@ -0,0 +1,71 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Template configuraton file for github actions CI/CD.
+ *
+ * @package    core
+ * @copyright  2020 onwards Eloy Lafuente (stronk7) {@link https://stronk7.com}
+ * @license    https://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+// This cannot be used out from a github actions workflow, so just exit.
+getenv('GITHUB_WORKFLOW') || die; // phpcs:ignore moodle.Files.MoodleInternal.MoodleInternalGlobalState
+
+unset($CFG);
+global $CFG;
+$CFG = new stdClass();
+
+$CFG->dbtype    = getenv('dbtype');
+$CFG->dblibrary = 'native';
+$CFG->dbhost    = '127.0.0.1';
+$CFG->dbname    = 'test';
+$CFG->dbuser    = 'test';
+$CFG->dbpass    = 'test';
+$CFG->prefix    = 'm_';
+$CFG->dboptions = ['dbcollation' => 'utf8mb4_bin'];
+
+$host = 'localhost';
+$CFG->wwwroot   = "http://{$host}";
+$CFG->dataroot  = realpath(dirname(__DIR__)) . '/moodledata';
+$CFG->admin     = 'admin';
+$CFG->directorypermissions = 0777;
+
+// Debug options - possible to be controlled by flag in future.
+$CFG->debug = (E_ALL | E_STRICT); // DEBUG_DEVELOPER.
+$CFG->debugdisplay = 1;
+$CFG->debugstringids = 1; // Add strings=1 to url to get string ids.
+$CFG->perfdebug = 15;
+$CFG->debugpageinfo = 1;
+$CFG->allowthemechangeonurl = 1;
+$CFG->passwordpolicy = 0;
+$CFG->cronclionly = 0;
+$CFG->pathtophp = getenv('pathtophp');
+
+$CFG->phpunit_dataroot  = realpath(dirname(__DIR__)) . '/phpunitdata';
+$CFG->phpunit_prefix = 't_';
+
+define('TEST_EXTERNAL_FILES_HTTP_URL', 'http://localhost:8080');
+define('TEST_EXTERNAL_FILES_HTTPS_URL', 'http://localhost:8080');
+
+define('TEST_SESSION_REDIS_HOST', 'localhost');
+define('TEST_CACHESTORE_REDIS_TESTSERVERS', 'localhost');
+
+// TODO: add others (solr, mongodb, memcached, ldap...).
+
+// Too much for now: define('PHPUNIT_LONGTEST', true); // Only leaves a few tests out and they are run later by CI.
+
+require_once(__DIR__ . '/lib/setup.php');

.github/workflows/push.yml

@@ -0,0 +1,103 @@
+name: Core
+
+on: [push]
+
+env:
+  php: 7.4
+
+jobs:
+  Grunt:
+    runs-on: ubuntu-18.04
+
+    steps:
+      - name: Checking out code
+        uses: actions/checkout@v2
+
+      - name: Configuring node & npm
+        shell: bash -l {0}
+        run: nvm install
+
+      - name: Installing node stuff
+        run: npm install
+
+      - name: Running grunt
+        run: npx grunt
+
+      - name: Looking for uncommitted changes
+        # Add all files to the git index and then run diff --cached to see all changes.
+        # This ensures that we get the status of all files, including new files.
+        # We ignore npm-shrinkwrap.json to make the tasks immune to npm changes.
+        run: |
+          git add .
+          git reset -- npm-shrinkwrap.json
+          git diff --cached --exit-code
+
+  PHPUnit:
+    runs-on: ${{ matrix.os }}
+    services:
+      exttests:
+        image: moodlehq/moodle-exttests
+        ports:
+          - 8080:80
+      redis:
+        image: redis
+        ports:
+          - 6379:6379
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - os: ubuntu-18.04
+            php: 7.2
+            db: mysqli
+          - os: ubuntu-18.04
+            php: 7.4
+            db: pgsql
+
+    steps:
+      - name: Setting up DB mysql
+        if: ${{ matrix.db == 'mysqli' }}
+        uses: johanmeiring/mysql-action@tmpfs-patch
+        with:
+          collation server: utf8mb4_bin
+          mysql version: 5.7
+          mysql database: test
+          mysql user: test
+          mysql password: test
+          use tmpfs: true
+
+      - name: Setting up DB pgsql
+        if: ${{ matrix.db == 'pgsql' }}
+        uses: m4nu56/postgresql-action@v1
+        with:
+          postgresql version: 9.6
+          postgresql db: test
+          postgresql user: test
+          postgresql password: test
+
+      - name: Configuring git vars
+        uses: rlespinasse/github-slug-action@v3.x
+
+      - name: Setting up PHP ${{ matrix.php }}
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: ${{ matrix.php }}
+          coverage: none
+
+      - name: Checking out code from ${{ env.GITHUB_REF_SLUG }}
+        uses: actions/checkout@v2
+
+      - name: Setting up PHPUnit
+        env:
+          dbtype: ${{ matrix.db }}
+        run: |
+          echo "pathtophp=$(which php)" >> $GITHUB_ENV # Inject installed pathtophp to env. The template config needs it.
+          cp .github/workflows/config-template.php config.php
+          mkdir ../moodledata
+          sudo locale-gen en_AU.UTF-8
+          php admin/tool/phpunit/cli/init.php --no-composer-self-update
+
+      - name: Running PHPUnit tests
+        env:
+          dbtype: ${{ matrix.db }}
+        run: vendor/bin/phpunit -v

.gitignore

@@ -33,6 +33,7 @@ CVS
 /.project
 /.buildpath
 /.cache
+.phpunit.result.cache
 phpunit.xml
 # Composer support. Do not ignore composer.json, or composer.lock. These should be shipped by us.
 composer.phar
@@ -44,3 +45,4 @@ composer.phar
 /lib/yuilib/*/*/*-coverage.js
 atlassian-ide-plugin.xml
 /node_modules/
+/.vscode/

.nvmrc

@@ -1 +1 @@
-v14.0.0
+v14.15.0

.stylelintignore

@@ -20,6 +20,7 @@ lib/editor/tinymce/plugins/spellchecker/rpc.php
 lib/editor/tinymce/tiny_mce/
 lib/mlbackend/php/phpml/
 lib/adodb/
+lib/behat/axe/
 lib/bennu/
 lib/evalmath/
 lib/phpspreadsheet/
@@ -67,6 +68,9 @@ lib/babel-polyfill/
 lib/polyfills/
 lib/emoji-data/
 lib/plist/
+lib/zipstream/
+lib/php-enum/
+lib/http-message/
 media/player/videojs/amd/src/video-lazy.js
 media/player/videojs/amd/src/Youtube-lazy.js
 media/player/videojs/videojs/
@@ -89,5 +93,4 @@ theme/boost/amd/src/bootstrap/tab.js
 theme/boost/amd/src/bootstrap/toast.js
 theme/boost/amd/src/bootstrap/tooltip.js
 theme/boost/amd/src/bootstrap/util.js
-theme/boost/amd/src/tether.js
 theme/boost/scss/fontawesome/

.travis.yml

@@ -2,10 +2,9 @@
 # process (which uses our internal CI system) this file is here for the benefit
 # of community developers git clones - see MDL-51458.
 
-# We currently disable Travis notifications entirely until https://github.com/travis-ci/travis-ci/issues/4976
-# is fixed.
 notifications:
-  email: false
+  email:
+    if: env(MOODLE_EMAIL) != no
 
 language: php
 
@@ -15,32 +14,11 @@ dist: xenial
 
 services:
     - mysql
-
-php:
-    # We only run the highest and lowest supported versions to reduce the load on travis-ci.org.
-    - 7.4
-    - 7.2
+    - docker
 
 addons:
   postgresql: "9.6"
 
-env:
-    # Although we want to run these jobs and see failures as quickly as possible, we also want to get the slowest job to
-    # start first so that the total run time is not too high.
-    #
-    # We only run MySQL on PHP 7.2, so run that first.
-    # CI Tests should be second-highest in priority as these only take <= 60 seconds to run under normal circumstances.
-    # Postgres is significantly is pretty reasonable in its run-time.
-
-    # Run CI Tests without running PHPUnit.
-    - DB=none     TASK=CITEST
-
-    # Run unit tests on Postgres
-    - DB=pgsql    TASK=PHPUNIT
-
-    # Perform an upgrade test too.
-    - DB=pgsql    TASK=UPGRADE
-
 jobs:
     # Enable fast finish.
     # This will fail the build if a single job fails (except those in allow_failures).
@@ -48,12 +26,35 @@ jobs:
     fast_finish: true
 
     include:
-          # Run mysql only on highest - it's just too slow
-        - php: 7.4
+        # First all the lowest php ones (7.2)
+        - php: 7.2
+          env: DB=none     TASK=CITEST
+        - php: 7.2
+          env: DB=none     TASK=GRUNT    NVM_VERSION='lts/carbon'
+
+        - if: env(MOODLE_DATABASE) = "pgsql" OR env(MOODLE_DATABASE) = "all" OR env(MOODLE_DATABASE) IS NOT present
+          php: 7.2
+          env: DB=pgsql    TASK=PHPUNIT
+
+        - if: env(MOODLE_DATABASE) = "mysqli" OR env(MOODLE_DATABASE) = "all"
+          php: 7.2
+          env: DB=mysqli   TASK=PHPUNIT
+
+        # Then, conditionally, all the highest php ones (7.4)
+        - if: env(MOODLE_PHP) = "all"
+          php: 7.4
+          env: DB=none     TASK=CITEST
+        - if: env(MOODLE_PHP) = "all"
+          php: 7.4
+          env: DB=none     TASK=GRUNT    NVM_VERSION='lts/carbon'
+
+        - if: env(MOODLE_PHP) = "all" AND (env(MOODLE_DATABASE) = "pgsql" OR env(MOODLE_DATABASE) = "all" OR env(MOODLE_DATABASE) IS NOT present)
+          php: 7.4
+          env: DB=pgsql    TASK=PHPUNIT
+
+        - if: env(MOODLE_PHP) = "all" AND (env(MOODLE_DATABASE) = "mysqli" OR env(MOODLE_DATABASE) = "all")
+          php: 7.4
           env: DB=mysqli   TASK=PHPUNIT
-          # Run grunt/npm install on highest version too ('node' is an alias for the latest node.js version.)
-        - php: 7.4
-          env: DB=none     TASK=GRUNT   NVM_VERSION='lts/carbon'
 
 cache:
     directories:
@@ -61,8 +62,9 @@ cache:
       - $HOME/.npm
 
 before_install:
+    - docker run -d -p 127.0.0.1:8080:80 --name exttests moodlehq/moodle-exttests
     # Avoid IPv6 default binding as service (causes redis not to start).
-    sudo service redis-server start --bind 127.0.0.1
+    - sudo service redis-server start --bind 127.0.0.1
 
 install:
     - >
@@ -112,7 +114,7 @@ install:
 before_script:
     - phpenv config-rm xdebug.ini
     - >
-      if [ "$TASK" = 'PHPUNIT' -o "$TASK" = 'UPGRADE' ];
+      if [ "$TASK" = 'PHPUNIT' ];
       then
         # Copy generic configuration in place.
         cp config-dist.php config.php ;
@@ -169,6 +171,12 @@ before_script:
           -e "/require_once/i \\\$CFG->phpunit_dataroot = '\/home\/travis\/roots\/phpunit';" \
           -e "/require_once/i \\\$CFG->phpunit_prefix = 'p_';" \
           config.php ;
+        # Enable test external resources
+        sed -i \
+          -e "/require_once/i \\define('TEST_EXTERNAL_FILES_HTTP_URL', 'http://127.0.0.1:8080');" \
+          -e "/require_once/i \\define('TEST_EXTERNAL_FILES_HTTPS_URL', 'http://127.0.0.1:8080');" \
+          config.php ;
+
         # Redis cache store tests
         sed -i \
           -e "/require_once/i \\define('TEST_CACHESTORE_REDIS_TESTSERVERS', '127.0.0.1');" \
@@ -206,7 +214,7 @@ before_script:
         # We need the official upstream for comparison
         git remote add upstream https://github.com/moodle/moodle.git;
 
-        git fetch upstream MOODLE_39_STABLE;
+        git fetch upstream MOODLE_310_STABLE;
         export GIT_PREVIOUS_COMMIT="`git merge-base FETCH_HEAD $TRAVIS_COMMIT`";
         export GIT_COMMIT="$TRAVIS_COMMIT";
         export UPSTREAM_FETCH_HEAD=`git rev-parse FETCH_HEAD`
@@ -217,32 +225,6 @@ before_script:
         export phpcmd=`which php`;
       fi
 
-    ########################################################################
-    # Upgrade test
-    ########################################################################
-    - >
-      if [ "$TASK" = 'UPGRADE' ];
-      then
-        # We need the official upstream.
-        git remote add upstream https://github.com/moodle/moodle.git;
-
-        # Checkout 30 STABLE branch (the first version compatible with PHP 7.x)
-        git fetch upstream MOODLE_30_STABLE;
-        git checkout MOODLE_30_STABLE;
-
-        # Perform the upgrade
-        php admin/cli/install_database.php --agree-license --adminpass=Password --adminemail=admin@example.com --fullname="Upgrade test" --shortname=Upgrade;
-
-        # Return to the previous commit
-        git checkout -;
-
-        # Perform the upgrade
-        php admin/cli/upgrade.php --non-interactive --allow-unstable ;
-
-        # The local_ci repository can be used to check upgrade savepoints.
-        git clone https://github.com/moodlehq/moodle-local_ci.git local/ci ;
-      fi
-
 script:
     - >
       if [ "$TASK" = 'PHPUNIT' ];
@@ -268,19 +250,10 @@ script:
         git diff --cached --exit-code ;
       fi
 
-    ########################################################################
-    # Upgrade test
-    ########################################################################
+after_script:
     - >
-      if [ "$TASK" = 'UPGRADE' ];
+      if [ "$TASK" = 'PHPUNIT' ];
       then
-        cp local/ci/check_upgrade_savepoints/check_upgrade_savepoints.php ./check_upgrade_savepoints.php
-        result=`php check_upgrade_savepoints.php`;
-        # Check if there are problems
-        count=`echo "$result" | grep -P "ERROR|WARN" | wc -l` ;
-        if (($count > 0));
-        then
-          echo "$result"
-          exit 1 ;
-        fi
+        EXTTESTS_HITS=$(docker logs exttests 2>&1 | grep -Fv -e 'AH00558' -e '[pid 1]' | wc -l)
+        echo -e "\nTest local resources number of hits: ${EXTTESTS_HITS}.\n"
       fi

admin/classes/form/testoutgoingmailconf_form.php

@@ -43,7 +43,7 @@ class testoutgoingmailconf_form extends \moodleform {
         $mform = $this->_form;
 
         // Recipient.
-        $options = ['maxlength' => '100', 'size' => '25'];
+        $options = ['maxlength' => '100', 'size' => '25', 'autocomplete' => 'email'];
         $mform->addElement('text', 'recipient', get_string('testoutgoingmailconf_toemail', 'admin'), $options);
         $mform->setType('recipient', PARAM_EMAIL);
         $mform->addRule('recipient', get_string('required'), 'required');

admin/classes/local/externalpage/accesscallback.php

@@ -0,0 +1,71 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * External admin page class that allows a callback to be provided to determine whether page can be accessed
+ *
+ * @package     core_admin
+ * @copyright   2019 Marina Glancy
+ * @license     http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+namespace core_admin\local\externalpage;
+
+use admin_externalpage;
+
+defined('MOODLE_INTERNAL') || die();
+
+require_once("{$CFG->libdir}/adminlib.php");
+
+/**
+ * Admin externalpage class
+ *
+ * @package     core_admin
+ * @copyright   2019 Marina Glancy
+ * @license     http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class accesscallback extends admin_externalpage {
+
+    /** @var callable $accesscheckcallback */
+    protected $accesscheckcallback;
+
+    /**
+     * Class constructor
+     *
+     * @param string $name
+     * @param string $visiblename
+     * @param string $url
+     * @param callable $accesscheckcallback The callback method that will be executed to check whether user has access to
+     *     this page. The setting instance ($this) is passed as an argument to the callback. Should return boolean value
+     * @param bool $hidden
+     */
+    public function __construct(string $name, string $visiblename, string $url, callable $accesscheckcallback,
+            bool $hidden = false) {
+
+        $this->accesscheckcallback = $accesscheckcallback;
+
+        parent::__construct($name, $visiblename, $url, [], $hidden);
+    }
+
+    /**
+     * Determines if the current user has access to this external page based on access callback
+     *
+     * @return bool
+     */
+    public function check_access() {
+        return ($this->accesscheckcallback)($this);
+    }
+}

admin/classes/local/settings/autocomplete.php

@@ -0,0 +1,206 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Auto complete admin setting.
+ *
+ * @package    core_admin
+ * @copyright  2020 The Open University
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+namespace core_admin\local\settings;
+
+defined('MOODLE_INTERNAL') || die();
+
+require_once($CFG->libdir . '/adminlib.php');
+/**
+ * Auto complete setting class.
+ *
+ * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ * @copyright 2020 The Open University
+ */
+class autocomplete extends \admin_setting_configmultiselect {
+    /** @var boolean Should we allow typing new entries to the field? */
+    protected $tags = false;
+    /** @var string Name of an AMD module to send/process ajax requests. */
+    protected $ajax = '';
+    /** @var string Placeholder text for an empty list. */
+    protected $placeholder = '';
+    /** @var bool Whether the search has to be case-sensitive. */
+    protected $casesensitive = false;
+    /** @var bool Show suggestions by default - but this can be turned off. */
+    protected $showsuggestions = true;
+    /** @var string String that is shown when there are no selections. */
+    protected $noselectionstring = '';
+    /** @var string Delimiter to store values in database. */
+    protected $delimiter = ',';
+    /** @var string Should be multiple choices? */
+    protected $multiple = true;
+    /** @var string The link to manage choices. */
+    protected $manageurl = true;
+    /** @var string The text to display in manage link. */
+    protected $managetext = true;
+
+    /**
+     * Constructor
+     *
+     * @param string $name unique ascii name, either 'mysetting' for settings that in config, or 'myplugin/mysetting'
+     * for ones in config_plugins.
+     * @param string $visiblename localised
+     * @param string $description long localised info
+     * @param array $defaultsetting array of selected items
+     * @param array $choices options for autocomplete field
+     * @param array $attributes settings for autocomplete field
+     */
+    public function __construct($name, $visiblename, $description, $defaultsetting, $choices, $attributes = null) {
+
+        if ($attributes === null) {
+            $attributes = [];
+        }
+
+        $this->placeholder = get_string('search');
+        $this->noselectionstring = get_string('noselection', 'form');
+        $defaultattributes = [
+                'tags',
+                'showsuggestions',
+                'placeholder',
+                'noselectionstring',
+                'ajax',
+                'casesensitive',
+                'delimiter',
+                'multiple',
+                'manageurl',
+                'managetext'
+        ];
+
+        foreach ($defaultattributes as $attributename) {
+            if (isset($attributes[$attributename])) {
+                $this->$attributename = $attributes[$attributename];
+            }
+        }
+
+        parent::__construct($name, $visiblename, $description, $defaultsetting, $choices);
+    }
+
+    /**
+     * Returns the select setting(s)
+     *
+     * @return mixed null or array. Null if no settings else array of setting(s)
+     */
+    public function get_setting() {
+        $result = $this->config_read($this->name);
+        if (is_null($result)) {
+            return null;
+        }
+        if ($result === '') {
+            return [];
+        }
+        return explode($this->delimiter, $result);
+    }
+
+    /**
+     * Saves setting(s) provided through $data
+     *
+     * @param array $data
+     */
+    public function write_setting($data) {
+        if (!is_array($data)) {
+            return ''; // Ignore it.
+        }
+        if (!$this->load_choices() || empty($this->choices)) {
+            return '';
+        }
+
+        unset($data['xxxxx']);
+
+        $save = [];
+        foreach ($data as $value) {
+            if (!array_key_exists($value, $this->choices)) {
+                continue; // Ignore it.
+            }
+            $save[] = $value;
+        }
+
+        return ($this->config_write($this->name, implode($this->delimiter, $save)) ? '' : get_string('errorsetting', 'admin'));
+    }
+
+    /**
+     * Returns XHTML autocomplete field
+     *
+     * @param array $data Array of values to select by default
+     * @param string $query
+     * @return string XHTML autocomplete field
+     */
+    public function output_html($data, $query = '') {
+        global $OUTPUT;
+
+        if (!$this->load_choices() or empty($this->choices)) {
+            return '';
+        }
+
+        $default = $this->get_defaultsetting();
+        if (empty($default)) {
+            $default = [];
+        }
+
+        if (is_null($data)) {
+            $data = [];
+        }
+
+        $context = [
+                'id' => $this->get_id(),
+                'name' => $this->get_full_name()
+        ];
+
+        $defaults = [];
+        $options = [];
+        $template = 'core_admin/local/settings/autocomplete';
+
+        foreach ($this->choices as $value => $name) {
+            if (in_array($value, $default)) {
+                $defaults[] = $name;
+            }
+            $options[] = [
+                    'value' => $value,
+                    'text' => $name,
+                    'selected' => in_array($value, $data),
+                    'disabled' => false
+            ];
+        }
+
+        $context['options'] = $options;
+        $context['tags'] = $this->tags;
+        $context['placeholder'] = $this->placeholder;
+        $context['casesensitive'] = $this->casesensitive;
+        $context['multiple'] = $this->multiple;
+        $context['showsuggestions'] = $this->showsuggestions;
+        $context['manageurl'] = $this->manageurl;
+        $context['managetext'] = $this->managetext;
+
+        if (is_null($default)) {
+            $defaultinfo = null;
+        } if (!empty($defaults)) {
+            $defaultinfo = implode(', ', $defaults);
+        } else {
+            $defaultinfo = get_string('none');
+        }
+
+        $element = $OUTPUT->render_from_template($template, $context);
+
+        return format_admin_setting($this, $this->visiblename, $element, $this->description, true, '', $defaultinfo, $query);
+    }
+}

admin/classes/local/settings/filesize.php

@@ -178,6 +178,7 @@ class filesize extends \admin_setting {
             'id' => $this->get_id(),
             'name' => $this->get_full_name(),
             'value' => $data['v'],
+            'readonly' => $this->is_readonly(),
             'options' => array_map(function($unit, $title) use ($data, $defaultunit) {
                 return [
                     'value' => $unit,

admin/classes/local/settings/manage_payment_gateway_plugins.php

@@ -0,0 +1,74 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Payment gateway admin setting.
+ *
+ * @package    core_admin
+ * @copyright  2020 Shamim Rezaie <shamim@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+namespace core_admin\local\settings;
+
+/**
+ * Generic class for managing plugins in a table that allows re-ordering and enable/disable of each plugin.
+ */
+class manage_payment_gateway_plugins extends \admin_setting_manage_plugins {
+    /**
+     * Get the admin settings section title (use get_string).
+     *
+     * @return string
+     */
+    public function get_section_title() {
+        return get_string('type_paygw_plural', 'plugin');
+    }
+
+    /**
+     * Get the type of plugin to manage.
+     *
+     * @return string
+     */
+    public function get_plugin_type() {
+        return 'paygw';
+    }
+
+    /**
+     * Get the name of the second column.
+     *
+     * @return string
+     */
+    public function get_info_column_name() {
+        return get_string('supportedcurrencies', 'core_payment');
+    }
+
+    /**
+     * Get the type of plugin to manage.
+     *
+     * @param plugininfo The plugin info class.
+     * @return string
+     */
+    public function get_info_column($plugininfo) {
+        $codes = $plugininfo->get_supported_currencies();
+
+        $currencies = [];
+        foreach ($codes as $c) {
+            $currencies[$c] = new \lang_string($c, 'core_currencies');
+        }
+
+        return implode(get_string('listsep', 'langconfig') . ' ', $currencies);
+    }
+}

admin/classes/task_log_table.php

@@ -57,6 +57,8 @@ class task_log_table extends \table_sql {
             'userid'     => get_string('user', 'admin'),
             'timestart'  => get_string('task_starttime', 'admin'),
             'duration'   => get_string('task_duration', 'admin'),
+            'hostname'   => get_string('hostname', 'tool_task'),
+            'pid'        => get_string('pid', 'tool_task'),
             'db'         => get_string('task_dbstats', 'admin'),
             'result'     => get_string('task_result', 'admin'),
             'actions'    => '',
@@ -132,6 +134,7 @@ class task_log_table extends \table_sql {
 
         $sql = "SELECT
                     tl.id, tl.type, tl.component, tl.classname, tl.userid, tl.timestart, tl.timeend,
+                    tl.hostname, tl.pid,
                     tl.dbreads, tl.dbwrites, tl.result,
                     tl.dbreads + tl.dbwrites AS db,
                     tl.timeend - tl.timestart AS duration,

admin/cli/adhoc_task.php

@@ -37,11 +37,13 @@ list($options, $unrecognized) = cli_get_params(
         'showsql' => false,
         'showdebugging' => false,
         'ignorelimits' => false,
+        'force' => false,
     ], [
         'h' => 'help',
         'e' => 'execute',
         'k' => 'keep-alive',
         'i' => 'ignorelimits',
+        'f' => 'force',
     ]
 );
 
@@ -61,6 +63,7 @@ Options:
  -e, --execute             Run all queued adhoc tasks
  -k, --keep-alive=N        Keep this script alive for N seconds and poll for new adhoc tasks
  -i  --ignorelimits        Ignore task_adhoc_concurrency_limit and task_adhoc_max_runtime limits
+ -f, --force               Run even if cron is disabled
 
 Example:
 \$sudo -u www-data /usr/bin/php admin/cli/adhoc_task.php --execute
@@ -92,6 +95,12 @@ if (moodle_needs_upgrading()) {
 if (empty($options['execute'])) {
     exit(0);
 }
+
+if (!get_config('core', 'cron_enabled') && !$options['force']) {
+    mtrace('Cron is disabled. Use --force to override.');
+    exit(1);
+}
+
 if (empty($options['keep-alive'])) {
     $options['keep-alive'] = 0;
 }

admin/cli/cron.php

@@ -36,14 +36,23 @@ require_once($CFG->libdir.'/cronlib.php');
 
 // now get cli options
 list($options, $unrecognized) = cli_get_params(
-    array(
+    [
         'help' => false,
         'stop' => false,
-    ),
-    array(
+        'list' => false,
+        'force' => false,
+        'enable' => false,
+        'disable' => false,
+        'disable-wait' => false,
+    ], [
         'h' => 'help',
         's' => 'stop',
-    )
+        'l' => 'list',
+        'f' => 'force',
+        'e' => 'enable',
+        'd' => 'disable',
+        'w' => 'disable-wait',
+    ]
 );
 
 if ($unrecognized) {
@@ -56,8 +65,13 @@ if ($options['help']) {
 "Execute periodic cron actions.
 
 Options:
--h, --help            Print out this help
--s, --stop            Notify all other running cron processes to stop after the current task
+-h, --help               Print out this help
+-s, --stop               Notify all other running cron processes to stop after the current task
+-l, --list               Show the list of currently running tasks and how long they have been running
+-f, --force              Execute task even if cron is disabled
+-e, --enable             Enable cron
+-d, --disable            Disable cron
+-w, --disable-wait=600   Disable cron and wait until all tasks finished or fail after N seconds (optional param)
 
 Example:
 \$sudo -u www-data /usr/bin/php admin/cli/cron.php
@@ -74,6 +88,91 @@ if ($options['stop']) {
     die;
 }
 
+if ($options['enable']) {
+    set_config('cron_enabled', 1);
+    mtrace('Cron has been enabled for the site.');
+    exit(0);
+}
+
+if ($options['disable']) {
+    set_config('cron_enabled', 0);
+    \core\task\manager::clear_static_caches();
+    mtrace('Cron has been disabled for the site.');
+    exit(0);
+}
+
+if ($options['list']) {
+    $tasks = \core\task\manager::get_running_tasks();
+    mtrace('The list of currently running tasks:');
+    $format = "%7s %-12s %-9s %-20s %-52s\n";
+    printf ($format,
+        'PID',
+        'HOST',
+        'TYPE',
+        'TIME',
+        'CLASSNAME'
+    );
+    foreach ($tasks as $task) {
+        printf ($format,
+            $task->pid,
+            substr($task->hostname, 0, 12),
+            $task->type,
+            format_time(time() - $task->timestarted),
+            substr($task->classname, 0, 52)
+        );
+    }
+    exit(0);
+}
+
+if ($wait = $options['disable-wait']) {
+    $started = time();
+    if (true === $wait) {
+        // Default waiting time.
+        $waitsec = 600;
+    } else {
+        $waitsec = $wait;
+        $wait = true;
+    }
+
+    set_config('cron_enabled', 0);
+    \core\task\manager::clear_static_caches();
+    mtrace('Cron has been disabled for the site.');
+    mtrace('Allocating '. format_time($waitsec) . ' for the tasks to finish.');
+
+    $lastcount = 0;
+    while ($wait) {
+        $tasks = \core\task\manager::get_running_tasks();
+
+        if (count($tasks) == 0) {
+            mtrace('');
+            mtrace('All scheduled and adhoc tasks finished.');
+            exit(0);
+        }
+
+        if (time() - $started >= $waitsec) {
+            mtrace('');
+            mtrace('Wait time ('. format_time($waitsec) . ') elapsed, but ' . count($tasks) . ' task(s) still running.');
+            mtrace('Exiting with code 1.');
+            exit(1);
+        }
+
+        if (count($tasks) !== $lastcount) {
+            mtrace('');
+            mtrace(count($tasks) . " tasks currently running.", '');
+            $lastcount = count($tasks);
+        } else {
+            mtrace('.', '');
+        }
+
+        sleep(1);
+    }
+}
+
+if (!get_config('core', 'cron_enabled') && !$options['force']) {
+    mtrace('Cron is disabled. Use --force to override.');
+    exit(1);
+}
+
 \core\local\cli\shutdown::script_supports_graceful_exit();
 
 cron_run();

admin/cli/install.php

@@ -215,6 +215,7 @@ define('SITEID', 1);
 
 //Database types
 $databases = array('mysqli' => moodle_database::get_driver_instance('mysqli', 'native'),
+                   'auroramysql' => moodle_database::get_driver_instance('auroramysql', 'native'),
                    'mariadb'=> moodle_database::get_driver_instance('mariadb', 'native'),
                    'pgsql'  => moodle_database::get_driver_instance('pgsql',  'native'),
                    'oci'    => moodle_database::get_driver_instance('oci',    'native'),
@@ -266,6 +267,7 @@ list($options, $unrecognized) = cli_get_params(
 );
 
 $interactive = empty($options['non-interactive']);
+$skipdatabase = $options['skip-database'];
 
 // set up language
 $lang = clean_param($options['lang'], PARAM_SAFEDIR);
@@ -637,96 +639,100 @@ do {
     }
 } while ($hintdatabase !== '');
 
-// ask for fullname
-if ($interactive) {
-    cli_separator();
-    cli_heading(get_string('fullsitename', 'moodle'));
+// If --skip-database option is provided, we do not need to ask for site fullname, shortname, adminuser, adminpass, adminemail.
+// These fields will be requested during the database install part.
+if (!$skipdatabase) {
+    // Ask for fullname.
+    if ($interactive) {
+        cli_separator();
+        cli_heading(get_string('fullsitename', 'moodle'));
 
-    if ($options['fullname'] !== '') {
-        $prompt = get_string('clitypevaluedefault', 'admin', $options['fullname']);
+        if ($options['fullname'] !== '') {
+            $prompt = get_string('clitypevaluedefault', 'admin', $options['fullname']);
+        } else {
+            $prompt = get_string('clitypevalue', 'admin');
+        }
+
+        do {
+            $options['fullname'] = cli_input($prompt, $options['fullname']);
+        } while (empty($options['fullname']));
     } else {
-        $prompt = get_string('clitypevalue', 'admin');
+        if (empty($options['fullname'])) {
+            $a = (object)['option' => 'fullname', 'value' => $options['fullname']];
+            cli_error(get_string('cliincorrectvalueerror', 'admin', $a));
+        }
     }
 
-    do {
-        $options['fullname'] = cli_input($prompt, $options['fullname']);
-    } while (empty($options['fullname']));
-} else {
-    if (empty($options['fullname'])) {
-        $a = (object)array('option'=>'fullname', 'value'=>$options['fullname']);
-        cli_error(get_string('cliincorrectvalueerror', 'admin', $a));
-    }
-}
+    // Ask for shortname.
+    if ($interactive) {
+        cli_separator();
+        cli_heading(get_string('shortsitename', 'moodle'));
 
-// ask for shortname
-if ($interactive) {
-    cli_separator();
-    cli_heading(get_string('shortsitename', 'moodle'));
+        if ($options['shortname'] !== '') {
+            $prompt = get_string('clitypevaluedefault', 'admin', $options['shortname']);
+        } else {
+            $prompt = get_string('clitypevalue', 'admin');
+        }
 
-    if ($options['shortname'] !== '') {
-        $prompt = get_string('clitypevaluedefault', 'admin', $options['shortname']);
+        do {
+            $options['shortname'] = cli_input($prompt, $options['shortname']);
+        } while (empty($options['shortname']));
     } else {
-        $prompt = get_string('clitypevalue', 'admin');
+        if (empty($options['shortname'])) {
+            $a = (object)['option' => 'shortname', 'value' => $options['shortname']];
+            cli_error(get_string('cliincorrectvalueerror', 'admin', $a));
+        }
     }
 
-    do {
-        $options['shortname'] = cli_input($prompt, $options['shortname']);
-    } while (empty($options['shortname']));
-} else {
-    if (empty($options['shortname'])) {
-        $a = (object)array('option'=>'shortname', 'value'=>$options['shortname']);
-        cli_error(get_string('cliincorrectvalueerror', 'admin', $a));
-    }
-}
-
-// ask for admin user name
-if ($interactive) {
-    cli_separator();
-    cli_heading(get_string('cliadminusername', 'install'));
-    if (!empty($options['adminuser'])) {
-        $prompt = get_string('clitypevaluedefault', 'admin', $options['adminuser']);
+    // Ask for admin user name.
+    if ($interactive) {
+        cli_separator();
+        cli_heading(get_string('cliadminusername', 'install'));
+        if (!empty($options['adminuser'])) {
+            $prompt = get_string('clitypevaluedefault', 'admin', $options['adminuser']);
+        } else {
+            $prompt = get_string('clitypevalue', 'admin');
+        }
+        do {
+            $options['adminuser'] = cli_input($prompt, $options['adminuser']);
+        } while (empty($options['adminuser']) or $options['adminuser'] === 'guest');
     } else {
+        if ((empty($options['adminuser']) || $options['adminuser'] === 'guest')) {
+            $a = (object)['option' => 'adminuser', 'value' => $options['adminuser']];
+            cli_error(get_string('cliincorrectvalueerror', 'admin', $a));
+        }
+    }
+
+    // Ask for admin user password.
+    if ($interactive) {
+        cli_separator();
+        cli_heading(get_string('cliadminpassword', 'install'));
         $prompt = get_string('clitypevalue', 'admin');
+        do {
+            $options['adminpass'] = cli_input($prompt);
+        } while (empty($options['adminpass']) or $options['adminpass'] === 'admin');
+    } else {
+        if ((empty($options['adminpass']) or $options['adminpass'] === 'admin')) {
+            $a = (object)['option' => 'adminpass', 'value' => $options['adminpass']];
+            cli_error(get_string('cliincorrectvalueerror', 'admin', $a));
+        }
     }
-    do {
-        $options['adminuser'] = cli_input($prompt, $options['adminuser']);
-    } while (empty($options['adminuser']) or $options['adminuser'] === 'guest');
-} else {
-    if (empty($options['adminuser']) or $options['adminuser'] === 'guest') {
-        $a = (object)array('option'=>'adminuser', 'value'=>$options['adminuser']);
+
+    // Ask for the admin email address.
+    if ($interactive) {
+        cli_separator();
+        cli_heading(get_string('cliadminemail', 'install'));
+        $prompt = get_string('clitypevaluedefault', 'admin', $options['adminemail']);
+        $options['adminemail'] = cli_input($prompt, $options['adminemail']);
+    }
+
+    // Validate that the address provided was an e-mail address.
+    if (!empty($options['adminemail']) && !validate_email($options['adminemail'])) {
+        $a = (object)['option' => 'adminemail', 'value' => $options['adminemail']];
         cli_error(get_string('cliincorrectvalueerror', 'admin', $a));
     }
 }
 
-// ask for admin user password
-if ($interactive) {
-    cli_separator();
-    cli_heading(get_string('cliadminpassword', 'install'));
-    $prompt = get_string('clitypevalue', 'admin');
-    do {
-        $options['adminpass'] = cli_input($prompt);
-    } while (empty($options['adminpass']) or $options['adminpass'] === 'admin');
-} else {
-    if (empty($options['adminpass']) or $options['adminpass'] === 'admin') {
-        $a = (object)array('option'=>'adminpass', 'value'=>$options['adminpass']);
-        cli_error(get_string('cliincorrectvalueerror', 'admin', $a));
-    }
-}
-
-// Ask for the admin email address.
-if ($interactive) {
-    cli_separator();
-    cli_heading(get_string('cliadminemail', 'install'));
-    $prompt = get_string('clitypevaluedefault', 'admin', $options['adminemail']);
-    $options['adminemail'] = cli_input($prompt, $options['adminemail']);
-}
-
-// Validate that the address provided was an e-mail address.
-if (!empty($options['adminemail']) && !validate_email($options['adminemail'])) {
-    $a = (object) array('option' => 'adminemail', 'value' => $options['adminemail']);
-    cli_error(get_string('cliincorrectvalueerror', 'admin', $a));
-}
-
 // Ask for the upgrade key.
 if ($interactive) {
     cli_separator();
@@ -745,22 +751,26 @@ if ($options['upgradekey'] !== '') {
     $CFG->upgradekey = $options['upgradekey'];
 }
 
-if ($interactive) {
-    if (!$options['agree-license']) {
-        cli_separator();
-        cli_heading(get_string('copyrightnotice'));
-        echo "Moodle  - Modular Object-Oriented Dynamic Learning Environment\n";
-        echo get_string('gpl3')."\n\n";
-        echo get_string('doyouagree')."\n";
-        $prompt = get_string('cliyesnoprompt', 'admin');
-        $input = cli_input($prompt, '', array(get_string('clianswerno', 'admin'), get_string('cliansweryes', 'admin')));
-        if ($input == get_string('clianswerno', 'admin')) {
-            exit(1);
+// The user does not also need to pass agree-license when --skip-database is provided as the user will need to accept
+// the license again in the database install part.
+if (!$skipdatabase) {
+    if ($interactive) {
+        if (!$options['agree-license']) {
+            cli_separator();
+            cli_heading(get_string('copyrightnotice'));
+            echo "Moodle  - Modular Object-Oriented Dynamic Learning Environment\n";
+            echo get_string('gpl3')."\n\n";
+            echo get_string('doyouagree')."\n";
+            $prompt = get_string('cliyesnoprompt', 'admin');
+            $input = cli_input($prompt, '', array(get_string('clianswerno', 'admin'), get_string('cliansweryes', 'admin')));
+            if ($input == get_string('clianswerno', 'admin')) {
+                exit(1);
+            }
+        }
+    } else {
+        if (!$options['agree-license'] && !$skipdatabase) {
+            cli_error(get_string('climustagreelicense', 'install'));
         }
-    }
-} else {
-    if (!$options['agree-license']) {
-        cli_error(get_string('climustagreelicense', 'install'));
     }
 }
 
@@ -809,7 +819,7 @@ if (!core_plugin_manager::instance()->all_plugins_ok($version, $failed)) {
     cli_error(get_string('pluginschecktodo', 'admin'));
 }
 
-if (!$options['skip-database']) {
+if (!$skipdatabase) {
     install_cli_database($options, $interactive);
     // This needs to happen at the end to ensure it occurs after all caches
     // have been purged for the last time.

admin/cli/restore_backup.php

@@ -0,0 +1,109 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * This script allows to restore a course from CLI.
+ *
+ * @package    core
+ * @subpackage cli
+ * @copyright  2020 Catalyst IT
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+define('CLI_SCRIPT', 1);
+
+require(__DIR__ . '/../../config.php');
+require_once($CFG->libdir . '/clilib.php');
+require_once($CFG->dirroot . "/backup/util/includes/restore_includes.php");
+
+list($options, $unrecognized) = cli_get_params([
+    'file' => '',
+    'categoryid' => '',
+    'showdebugging' => false,
+    'help' => false,
+], [
+    'f' => 'file',
+    'c' => 'categoryid',
+    's' => 'showdebugging',
+    'h' => 'help',
+]);
+
+if ($unrecognized) {
+    $unrecognized = implode("\n  ", $unrecognized);
+    cli_error(get_string('cliunknowoption', 'admin', $unrecognized));
+}
+
+if ($options['help'] || !($options['file']) || !($options['categoryid'])) {
+    $help = <<<EOL
+Restore backup into provided category.
+
+Options:
+-f, --file=STRING           Path to the backup file.
+-c, --categoryid=INT        ID of the category to restore too.
+-s, --showdebugging         Show developer level debugging information
+-h, --help                  Print out this help.
+
+Example:
+\$sudo -u www-data /usr/bin/php admin/cli/restore_backup.php --file=/path/to/backup/file.mbz --categoryid=1\n
+EOL;
+
+    echo $help;
+    exit(0);
+}
+
+if ($options['showdebugging']) {
+    set_debugging(DEBUG_DEVELOPER, true);
+}
+
+if (!$admin = get_admin()) {
+    print_error('noadmins');
+}
+
+if (!file_exists($options['file'])) {
+    print_error('filenotfound');
+}
+
+if (!$category = $DB->get_record('course_categories', ['id' => $options['categoryid']], 'id')) {
+    print_error('invalidcategoryid');
+}
+
+$backupdir = "restore_" . uniqid();
+$path = $CFG->tempdir . DIRECTORY_SEPARATOR . "backup" . DIRECTORY_SEPARATOR . $backupdir;
+
+cli_heading(get_string('extractingbackupfileto', 'backup', $path));
+$fp = get_file_packer('application/vnd.moodle.backup');
+$fp->extract_to_pathname($options['file'], $path);
+
+cli_heading(get_string('preprocessingbackupfile'));
+try {
+    list($fullname, $shortname) = restore_dbops::calculate_course_names(0, get_string('restoringcourse', 'backup'),
+        get_string('restoringcourseshortname', 'backup'));
+
+    $courseid = restore_dbops::create_new_course($fullname, $shortname, $category->id);
+
+    $rc = new restore_controller($backupdir, $courseid, backup::INTERACTIVE_NO,
+        backup::MODE_GENERAL, $admin->id, backup::TARGET_NEW_COURSE);
+    $rc->execute_precheck();
+    $rc->execute_plan();
+    $rc->destroy();
+} catch (Exception $e) {
+    cli_heading(get_string('cleaningtempdata'));
+    fulldelete($path);
+    print_error('generalexceptionmessage', 'error', '', $e->getMessage());
+}
+
+cli_heading(get_string('restoredcourseid', 'backup', $courseid));
+exit(0);

admin/cli/scheduled_task.php

@@ -30,8 +30,17 @@ require_once("$CFG->libdir/clilib.php");
 require_once("$CFG->libdir/cronlib.php");
 
 list($options, $unrecognized) = cli_get_params(
-    array('help' => false, 'list' => false, 'execute' => false, 'showsql' => false, 'showdebugging' => false),
-    array('h' => 'help')
+    [
+        'help' => false,
+        'list' => false,
+        'execute' => false,
+        'showsql' => false,
+        'showdebugging' => false,
+        'force' => false,
+    ], [
+        'h' => 'help',
+        'f' => 'force',
+    ]
 );
 
 if ($unrecognized) {
@@ -49,6 +58,7 @@ if ($options['help'] or (!$options['list'] and !$options['execute'])) {
     --showsql             Show sql queries before they are executed
     --showdebugging       Show developer level debugging information
     -h, --help            Print out this help
+    -f, --force           Execute task even if cron is disabled
 
     Example:
     \$sudo -u www-data /usr/bin/php admin/cli/scheduled_task.php --execute=\\core\\task\\session_cleanup_task
@@ -121,6 +131,13 @@ if ($execute = $options['execute']) {
         exit(1);
     }
 
+    if (!get_config('core', 'cron_enabled') && !$options['force']) {
+        mtrace('Cron is disabled. Use --force to override.');
+        exit(1);
+    }
+
+    \core\task\manager::scheduled_task_starting($task);
+
     // Increase memory limit.
     raise_memory_limit(MEMORY_EXTRA);
 

admin/cli/svgtool.php

@@ -38,17 +38,17 @@ if ($unrecognized) {
 }
 
 // If necessary add files that should be ignored - such as in 3rd party plugins.
-$blacklist = array();
+$ignorelist = array();
 $path = $options['path'];
 if (!file_exists($path)) {
     cli_error("Invalid path $path");
 }
 
 if ($options['ie9fix']) {
-    core_admin_recurse_svgs($path, '', 'core_admin_svgtool_ie9fix', $blacklist);
+    core_admin_recurse_svgs($path, '', 'core_admin_svgtool_ie9fix', $ignorelist);
 
 } else if ($options['noaspectratio']) {
-    core_admin_recurse_svgs($path, '', 'core_admin_svgtool_noaspectratio', $blacklist);
+    core_admin_recurse_svgs($path, '', 'core_admin_svgtool_noaspectratio', $ignorelist);
 
 } else {
     $help =
@@ -153,9 +153,9 @@ function core_admin_svgtool_noaspectratio($file) {
  * @param string $base
  * @param string $sub
  * @param string $filecallback
- * @param array $blacklist
+ * @param array $ignorelist List of files to be ignored and skipped.
  */
-function core_admin_recurse_svgs($base, $sub, $filecallback, $blacklist) {
+function core_admin_recurse_svgs($base, $sub, $filecallback, $ignorelist) {
     if (is_dir("$base/$sub")) {
         $items = new DirectoryIterator("$base/$sub");
         foreach ($items as $item) {
@@ -163,7 +163,7 @@ function core_admin_recurse_svgs($base, $sub, $filecallback, $blacklist) {
                 continue;
             }
             $file = $item->getFilename();
-            core_admin_recurse_svgs("$base/$sub", $file, $filecallback, $blacklist);
+            core_admin_recurse_svgs("$base/$sub", $file, $filecallback, $ignorelist);
         }
         unset($item);
         unset($items);
@@ -174,7 +174,7 @@ function core_admin_recurse_svgs($base, $sub, $filecallback, $blacklist) {
             return;
         }
         $file = realpath("$base/$sub");
-        if (in_array($file, $blacklist)) {
+        if (in_array($file, $ignorelist)) {
             return;
         }
         $filecallback($file);

admin/cli/uninstall_plugins.php

@@ -34,6 +34,7 @@ $help = "Command line tool to uninstall plugins.
 Options:
     -h --help                   Print this help.
     --show-all                  Displays a list of all installed plugins.
+    --show-contrib              Displays a list of all third-party installed plugins.
     --show-missing              Displays a list of plugins missing from disk.
     --purge-missing             Uninstall all missing from disk plugins.
     --plugins=<plugin name>     A comma separated list of plugins to be uninstalled. E.g. mod_assign,mod_forum
@@ -44,6 +45,9 @@ Examples:
     # php uninstall_plugins.php  --show-all
         Prints tab-separated list of all installed plugins.
 
+    # php uninstall_plugins.php  --show-contrib
+        Prints tab-separated list of all third-party installed plugins.
+
     # php uninstall_plugins.php  --show-missing
         Prints tab-separated list of all missing from disk plugins.
 
@@ -63,6 +67,7 @@ Examples:
 list($options, $unrecognised) = cli_get_params([
     'help' => false,
     'show-all' => false,
+    'show-contrib' => false,
     'show-missing' => false,
     'purge-missing' => false,
     'plugins' => false,
@@ -84,12 +89,15 @@ if ($options['help']) {
 $pluginman = core_plugin_manager::instance();
 $plugininfo = $pluginman->get_plugins();
 
-if ($options['show-all'] || $options['show-missing']) {
+if ($options['show-all'] || $options['show-missing'] || $options['show-contrib']) {
     foreach ($plugininfo as $type => $plugins) {
         foreach ($plugins as $name => $plugin) {
+            if ($options['show-contrib'] && $plugin->is_standard()) {
+                continue;
+            }
             $pluginstring = $plugin->component . "\t" . $plugin->displayname;
 
-            if ($options['show-all']) {
+            if ($options['show-all'] || $options['show-contrib']) {
                 cli_writeln($pluginstring);
             } else {
                 if ($plugin->get_status() === core_plugin_manager::PLUGIN_STATUS_MISSING) {

admin/environment.xml

@@ -3163,4 +3163,367 @@
       </CUSTOM_CHECK>
     </CUSTOM_CHECKS>
   </MOODLE>
+  <MOODLE version="3.10" requires="3.5">
+    <UNICODE level="required">
+      <FEEDBACK>
+        <ON_ERROR message="unicoderequired" />
+      </FEEDBACK>
+    </UNICODE>
+    <DATABASE level="required">
+      <VENDOR name="mariadb" version="10.2.29" />
+      <VENDOR name="mysql" version="5.7" />
+      <VENDOR name="postgres" version="9.6" />
+      <VENDOR name="mssql" version="11.0" />
+      <VENDOR name="oracle" version="11.2" />
+    </DATABASE>
+    <PHP version="7.2.0" level="required">
+    </PHP>
+    <PCREUNICODE level="optional">
+      <FEEDBACK>
+        <ON_CHECK message="pcreunicodewarning" />
+      </FEEDBACK>
+    </PCREUNICODE>
+    <PHP_EXTENSIONS>
+      <PHP_EXTENSION name="iconv" level="required">
+        <FEEDBACK>
+          <ON_ERROR message="iconvrequired" />
+        </FEEDBACK>
+      </PHP_EXTENSION>
+      <PHP_EXTENSION name="mbstring" level="required">
+        <FEEDBACK>
+          <ON_ERROR message="mbstringrequired" />
+        </FEEDBACK>
+      </PHP_EXTENSION>
+      <PHP_EXTENSION name="curl" level="required">
+        <FEEDBACK>
+          <ON_ERROR message="curlrequired" />
+        </FEEDBACK>
+      </PHP_EXTENSION>
+      <PHP_EXTENSION name="openssl" level="required">
+        <FEEDBACK>
+          <ON_ERROR message="opensslrequired" />
+        </FEEDBACK>
+      </PHP_EXTENSION>
+      <PHP_EXTENSION name="tokenizer" level="optional">
+        <FEEDBACK>
+          <ON_CHECK message="tokenizerrecommended" />
+        </FEEDBACK>
+      </PHP_EXTENSION>
+      <PHP_EXTENSION name="xmlrpc" level="optional">
+        <FEEDBACK>
+          <ON_CHECK message="xmlrpcrecommended" />
+        </FEEDBACK>
+      </PHP_EXTENSION>
+      <PHP_EXTENSION name="soap" level="optional">
+        <FEEDBACK>
+          <ON_CHECK message="soaprecommended" />
+        </FEEDBACK>
+      </PHP_EXTENSION>
+      <PHP_EXTENSION name="ctype" level="required">
+        <FEEDBACK>
+          <ON_ERROR message="ctyperequired" />
+        </FEEDBACK>
+      </PHP_EXTENSION>
+      <PHP_EXTENSION name="zip" level="required">
+        <FEEDBACK>
+          <ON_ERROR message="ziprequired" />
+        </FEEDBACK>
+      </PHP_EXTENSION>
+      <PHP_EXTENSION name="zlib" level="required">
+      </PHP_EXTENSION>
+      <PHP_EXTENSION name="gd" level="required">
+        <FEEDBACK>
+          <ON_ERROR message="gdrequired" />
+        </FEEDBACK>
+      </PHP_EXTENSION>
+      <PHP_EXTENSION name="simplexml" level="required">
+        <FEEDBACK>
+          <ON_ERROR message="simplexmlrequired" />
+        </FEEDBACK>
+      </PHP_EXTENSION>
+      <PHP_EXTENSION name="spl" level="required">
+        <FEEDBACK>
+          <ON_ERROR message="splrequired" />
+        </FEEDBACK>
+      </PHP_EXTENSION>
+      <PHP_EXTENSION name="pcre" level="required">
+      </PHP_EXTENSION>
+      <PHP_EXTENSION name="dom" level="required">
+      </PHP_EXTENSION>
+      <PHP_EXTENSION name="xml" level="required">
+      </PHP_EXTENSION>
+      <PHP_EXTENSION name="xmlreader" level="required">
+      </PHP_EXTENSION>
+      <PHP_EXTENSION name="intl" level="required">
+        <FEEDBACK>
+          <ON_ERROR message="intlrequired" />
+        </FEEDBACK>
+      </PHP_EXTENSION>
+      <PHP_EXTENSION name="json" level="required">
+      </PHP_EXTENSION>
+      <PHP_EXTENSION name="hash" level="required"/>
+      <PHP_EXTENSION name="fileinfo" level="required"/>
+    </PHP_EXTENSIONS>
+    <PHP_SETTINGS>
+      <PHP_SETTING name="memory_limit" value="96M" level="required">
+        <FEEDBACK>
+          <ON_ERROR message="settingmemorylimit" />
+        </FEEDBACK>
+      </PHP_SETTING>
+      <PHP_SETTING name="file_uploads" value="1" level="optional">
+        <FEEDBACK>
+          <ON_CHECK message="settingfileuploads" />
+        </FEEDBACK>
+      </PHP_SETTING>
+      <PHP_SETTING name="opcache.enable" value="1" level="optional">
+        <FEEDBACK>
+          <ON_CHECK message="opcacherecommended" />
+        </FEEDBACK>
+      </PHP_SETTING>
+    </PHP_SETTINGS>
+    <CUSTOM_CHECKS>
+      <CUSTOM_CHECK file="lib/upgradelib.php" function="check_database_storage_engine" level="required">
+        <FEEDBACK>
+          <ON_ERROR message="unsupporteddbstorageengine" />
+        </FEEDBACK>
+      </CUSTOM_CHECK>
+      <CUSTOM_CHECK file="question/engine/upgrade/upgradelib.php" function="quiz_attempts_upgraded" level="required">
+        <FEEDBACK>
+          <ON_ERROR message="quizattemptsupgradedmessage" />
+        </FEEDBACK>
+      </CUSTOM_CHECK>
+      <CUSTOM_CHECK file="lib/upgradelib.php" function="check_slasharguments" level="optional">
+        <FEEDBACK>
+          <ON_CHECK message="slashargumentswarning" />
+        </FEEDBACK>
+      </CUSTOM_CHECK>
+      <CUSTOM_CHECK file="lib/upgradelib.php" function="check_database_tables_row_format" level="optional">
+        <FEEDBACK>
+          <ON_CHECK message="unsupporteddbtablerowformat" />
+        </FEEDBACK>
+      </CUSTOM_CHECK>
+      <CUSTOM_CHECK file="lib/upgradelib.php" function="check_unoconv_version" level="optional">
+        <FEEDBACK>
+          <ON_CHECK message="unoconvwarning" />
+        </FEEDBACK>
+      </CUSTOM_CHECK>
+      <CUSTOM_CHECK file="lib/upgradelib.php" function="check_libcurl_version" level="optional">
+        <FEEDBACK>
+          <ON_CHECK message="libcurlwarning" />
+        </FEEDBACK>
+      </CUSTOM_CHECK>
+      <CUSTOM_CHECK file="lib/upgradelib.php" function="check_mysql_file_format" level="required">
+        <FEEDBACK>
+          <ON_ERROR message="unsupporteddbfileformat" />
+        </FEEDBACK>
+      </CUSTOM_CHECK>
+      <CUSTOM_CHECK file="lib/upgradelib.php" function="check_mysql_file_per_table" level="required">
+        <FEEDBACK>
+          <ON_ERROR message="unsupporteddbfilepertable" />
+        </FEEDBACK>
+      </CUSTOM_CHECK>
+      <CUSTOM_CHECK file="lib/upgradelib.php" function="check_mysql_large_prefix" level="required">
+        <FEEDBACK>
+          <ON_ERROR message="unsupporteddblargeprefix" />
+        </FEEDBACK>
+      </CUSTOM_CHECK>
+      <CUSTOM_CHECK file="lib/upgradelib.php" function="check_is_https" level="optional">
+        <FEEDBACK>
+          <ON_CHECK message="ishttpswarning" />
+        </FEEDBACK>
+      </CUSTOM_CHECK>
+      <CUSTOM_CHECK file="lib/upgradelib.php" function="check_mysql_incomplete_unicode_support" level="optional">
+        <FEEDBACK>
+          <ON_CHECK message="incompleteunicodesupport" />
+        </FEEDBACK>
+      </CUSTOM_CHECK>
+      <CUSTOM_CHECK file="lib/upgradelib.php" function="check_sixtyfour_bits" level="optional">
+        <FEEDBACK>
+          <ON_CHECK message="sixtyfourbitswarning" />
+        </FEEDBACK>
+      </CUSTOM_CHECK>
+    </CUSTOM_CHECKS>
+  </MOODLE>
+  <MOODLE version="3.11" requires="3.6">
+    <UNICODE level="required">
+      <FEEDBACK>
+        <ON_ERROR message="unicoderequired" />
+      </FEEDBACK>
+    </UNICODE>
+    <DATABASE level="required">
+      <VENDOR name="mariadb" version="10.2.29" />
+      <VENDOR name="mysql" version="5.7" />
+      <VENDOR name="postgres" version="9.6" />
+      <VENDOR name="mssql" version="14.0" />
+      <VENDOR name="oracle" version="11.2" />
+    </DATABASE>
+    <PHP version="7.3.0" level="required">
+    </PHP>
+    <PCREUNICODE level="optional">
+      <FEEDBACK>
+        <ON_CHECK message="pcreunicodewarning" />
+      </FEEDBACK>
+    </PCREUNICODE>
+    <PHP_EXTENSIONS>
+      <PHP_EXTENSION name="iconv" level="required">
+        <FEEDBACK>
+          <ON_ERROR message="iconvrequired" />
+        </FEEDBACK>
+      </PHP_EXTENSION>
+      <PHP_EXTENSION name="mbstring" level="required">
+        <FEEDBACK>
+          <ON_ERROR message="mbstringrequired" />
+        </FEEDBACK>
+      </PHP_EXTENSION>
+      <PHP_EXTENSION name="curl" level="required">
+        <FEEDBACK>
+          <ON_ERROR message="curlrequired" />
+        </FEEDBACK>
+      </PHP_EXTENSION>
+      <PHP_EXTENSION name="openssl" level="required">
+        <FEEDBACK>
+          <ON_ERROR message="opensslrequired" />
+        </FEEDBACK>
+      </PHP_EXTENSION>
+      <PHP_EXTENSION name="tokenizer" level="optional">
+        <FEEDBACK>
+          <ON_CHECK message="tokenizerrecommended" />
+        </FEEDBACK>
+      </PHP_EXTENSION>
+      <PHP_EXTENSION name="xmlrpc" level="optional">
+        <FEEDBACK>
+          <ON_CHECK message="xmlrpcrecommended" />
+        </FEEDBACK>
+      </PHP_EXTENSION>
+      <PHP_EXTENSION name="soap" level="optional">
+        <FEEDBACK>
+          <ON_CHECK message="soaprecommended" />
+        </FEEDBACK>
+      </PHP_EXTENSION>
+      <PHP_EXTENSION name="ctype" level="required">
+        <FEEDBACK>
+          <ON_ERROR message="ctyperequired" />
+        </FEEDBACK>
+      </PHP_EXTENSION>
+      <PHP_EXTENSION name="zip" level="required">
+        <FEEDBACK>
+          <ON_ERROR message="ziprequired" />
+        </FEEDBACK>
+      </PHP_EXTENSION>
+      <PHP_EXTENSION name="zlib" level="required">
+      </PHP_EXTENSION>
+      <PHP_EXTENSION name="gd" level="required">
+        <FEEDBACK>
+          <ON_ERROR message="gdrequired" />
+        </FEEDBACK>
+      </PHP_EXTENSION>
+      <PHP_EXTENSION name="simplexml" level="required">
+        <FEEDBACK>
+          <ON_ERROR message="simplexmlrequired" />
+        </FEEDBACK>
+      </PHP_EXTENSION>
+      <PHP_EXTENSION name="spl" level="required">
+        <FEEDBACK>
+          <ON_ERROR message="splrequired" />
+        </FEEDBACK>
+      </PHP_EXTENSION>
+      <PHP_EXTENSION name="pcre" level="required">
+      </PHP_EXTENSION>
+      <PHP_EXTENSION name="dom" level="required">
+      </PHP_EXTENSION>
+      <PHP_EXTENSION name="xml" level="required">
+      </PHP_EXTENSION>
+      <PHP_EXTENSION name="xmlreader" level="required">
+      </PHP_EXTENSION>
+      <PHP_EXTENSION name="intl" level="required">
+        <FEEDBACK>
+          <ON_ERROR message="intlrequired" />
+        </FEEDBACK>
+      </PHP_EXTENSION>
+      <PHP_EXTENSION name="json" level="required">
+      </PHP_EXTENSION>
+      <PHP_EXTENSION name="hash" level="required"/>
+      <PHP_EXTENSION name="fileinfo" level="required"/>
+      <PHP_EXTENSION name="sodium" level="required"/>
+    </PHP_EXTENSIONS>
+    <PHP_SETTINGS>
+      <PHP_SETTING name="memory_limit" value="96M" level="required">
+        <FEEDBACK>
+          <ON_ERROR message="settingmemorylimit" />
+        </FEEDBACK>
+      </PHP_SETTING>
+      <PHP_SETTING name="file_uploads" value="1" level="optional">
+        <FEEDBACK>
+          <ON_CHECK message="settingfileuploads" />
+        </FEEDBACK>
+      </PHP_SETTING>
+      <PHP_SETTING name="opcache.enable" value="1" level="optional">
+        <FEEDBACK>
+          <ON_CHECK message="opcacherecommended" />
+        </FEEDBACK>
+      </PHP_SETTING>
+    </PHP_SETTINGS>
+    <CUSTOM_CHECKS>
+      <CUSTOM_CHECK file="lib/upgradelib.php" function="check_database_storage_engine" level="required">
+        <FEEDBACK>
+          <ON_ERROR message="unsupporteddbstorageengine" />
+        </FEEDBACK>
+      </CUSTOM_CHECK>
+      <CUSTOM_CHECK file="question/engine/upgrade/upgradelib.php" function="quiz_attempts_upgraded" level="required">
+        <FEEDBACK>
+          <ON_ERROR message="quizattemptsupgradedmessage" />
+        </FEEDBACK>
+      </CUSTOM_CHECK>
+      <CUSTOM_CHECK file="lib/upgradelib.php" function="check_slasharguments" level="optional">
+        <FEEDBACK>
+          <ON_CHECK message="slashargumentswarning" />
+        </FEEDBACK>
+      </CUSTOM_CHECK>
+      <CUSTOM_CHECK file="lib/upgradelib.php" function="check_database_tables_row_format" level="optional">
+        <FEEDBACK>
+          <ON_CHECK message="unsupporteddbtablerowformat" />
+        </FEEDBACK>
+      </CUSTOM_CHECK>
+      <CUSTOM_CHECK file="lib/upgradelib.php" function="check_unoconv_version" level="optional">
+        <FEEDBACK>
+          <ON_CHECK message="unoconvwarning" />
+        </FEEDBACK>
+      </CUSTOM_CHECK>
+      <CUSTOM_CHECK file="lib/upgradelib.php" function="check_libcurl_version" level="optional">
+        <FEEDBACK>
+          <ON_CHECK message="libcurlwarning" />
+        </FEEDBACK>
+      </CUSTOM_CHECK>
+      <CUSTOM_CHECK file="lib/upgradelib.php" function="check_mysql_file_format" level="required">
+        <FEEDBACK>
+          <ON_ERROR message="unsupporteddbfileformat" />
+        </FEEDBACK>
+      </CUSTOM_CHECK>
+      <CUSTOM_CHECK file="lib/upgradelib.php" function="check_mysql_file_per_table" level="required">
+        <FEEDBACK>
+          <ON_ERROR message="unsupporteddbfilepertable" />
+        </FEEDBACK>
+      </CUSTOM_CHECK>
+      <CUSTOM_CHECK file="lib/upgradelib.php" function="check_mysql_large_prefix" level="required">
+        <FEEDBACK>
+          <ON_ERROR message="unsupporteddblargeprefix" />
+        </FEEDBACK>
+      </CUSTOM_CHECK>
+      <CUSTOM_CHECK file="lib/upgradelib.php" function="check_is_https" level="optional">
+        <FEEDBACK>
+          <ON_CHECK message="ishttpswarning" />
+        </FEEDBACK>
+      </CUSTOM_CHECK>
+      <CUSTOM_CHECK file="lib/upgradelib.php" function="check_mysql_incomplete_unicode_support" level="optional">
+        <FEEDBACK>
+          <ON_CHECK message="incompleteunicodesupport" />
+        </FEEDBACK>
+      </CUSTOM_CHECK>
+      <CUSTOM_CHECK file="lib/upgradelib.php" function="check_sixtyfour_bits" level="optional">
+        <FEEDBACK>
+          <ON_CHECK message="sixtyfourbitswarning" />
+        </FEEDBACK>
+      </CUSTOM_CHECK>
+    </CUSTOM_CHECKS>
+  </MOODLE>
 </COMPATIBILITY_MATRIX>

admin/index.php

@@ -509,7 +509,8 @@ if (!$cache and $version > $CFG->version) {  // upgrade
         // Always verify plugin dependencies!
         $failed = array();
         if (!core_plugin_manager::instance()->all_plugins_ok($version, $failed, $CFG->branch)) {
-            echo $output->unsatisfied_dependencies_page($version, $failed, $PAGE->url);
+            echo $output->unsatisfied_dependencies_page($version, $failed, new moodle_url($PAGE->url,
+                array('confirmplugincheck' => 0)));
             die();
         }
         unset($failed);
@@ -701,7 +702,8 @@ if (!$cache and moodle_needs_upgrading()) {
         $failed = array();
         if (!$pluginman->all_plugins_ok($version, $failed, $CFG->branch)) {
             $output = $PAGE->get_renderer('core', 'admin');
-            echo $output->unsatisfied_dependencies_page($version, $failed, $PAGE->url);
+            echo $output->unsatisfied_dependencies_page($version, $failed, new moodle_url($PAGE->url,
+                array('confirmplugincheck' => 0)));
             die();
         }
         unset($failed);

admin/modules.php

@@ -49,6 +49,7 @@
                 array($module->id));
         core_plugin_manager::reset_caches();
         admin_get_root(true, false);  // settings not required - only pages
+        redirect(new moodle_url('/admin/modules.php'));
     }
 
     if (!empty($show) and confirm_sesskey()) {
@@ -66,6 +67,7 @@
                 array($module->id));
         core_plugin_manager::reset_caches();
         admin_get_root(true, false);  // settings not required - only pages
+        redirect(new moodle_url('/admin/modules.php'));
     }
 
     echo $OUTPUT->header();
@@ -121,8 +123,8 @@
             $count = -1;
         }
         if ($count>0) {
-            $countlink = "<a href=\"{$CFG->wwwroot}/course/search.php?modulelist=$module->name" .
-                "&amp;sesskey=".sesskey()."\" title=\"$strshowmodulecourse\">$count</a>";
+            $countlink = $OUTPUT->action_link(new moodle_url('/course/search.php', ['modulelist' => $module->name]),
+                $count, null, ['title' => $strshowmodulecourse]);
         } else if ($count < 0) {
             $countlink = get_string('error');
         } else {

admin/plugins.php

@@ -53,7 +53,6 @@ $pageurl = new moodle_url('/admin/plugins.php', $pageparams);
 $pluginman = core_plugin_manager::instance();
 
 if ($uninstall) {
-    require_sesskey();
 
     if (!$confirmed) {
         admin_externalpage_setup('pluginsoverview', '', $pageparams);
@@ -92,6 +91,7 @@ if ($uninstall) {
         exit();
 
     } else {
+        require_sesskey();
         $SESSION->pluginuninstallreturn = $pluginfo->get_return_url_after_uninstall($return);
         $progress = new progress_trace_buffer(new text_progress_trace(), false);
         $pluginman->uninstall_plugin($pluginfo->component, $progress);

admin/renderer.php

@@ -1110,7 +1110,7 @@ class core_admin_renderer extends plugin_renderer_base {
 
                 if (!empty($installabortable[$plugin->component])) {
                     $status .= $this->output->single_button(
-                        new moodle_url($this->page->url, array('abortinstall' => $plugin->component)),
+                        new moodle_url($this->page->url, array('abortinstall' => $plugin->component, 'confirmplugincheck' => 0)),
                         get_string('cancelinstallone', 'core_plugin'),
                         'post',
                         array('class' => 'actionbutton cancelinstallone d-block mt-1')
@@ -1209,7 +1209,7 @@ class core_admin_renderer extends plugin_renderer_base {
 
         if ($installabortable) {
             $out .= $this->output->single_button(
-                new moodle_url($this->page->url, array('abortinstallx' => 1)),
+                new moodle_url($this->page->url, array('abortinstallx' => 1, 'confirmplugincheck' => 0)),
                 get_string('cancelinstallall', 'core_plugin', count($installabortable)),
                 'post',
                 array('class' => 'singlebutton cancelinstallall mr-1')

admin/roles/tests/privacy_test.php

@@ -536,7 +536,7 @@ class core_role_privacy_testcase extends provider_testcase {
             $user1->id,
             $admin->id
         ];
-        $this->assertEquals($expected, $userlist2->get_userids(), '', 0.0, 10, true);
+        $this->assertEqualsCanonicalizing($expected, $userlist2->get_userids());
 
         // The user list for coursecontext1 should user1, user2 and admin (role creator).
         $userlist3 = new \core_privacy\local\request\userlist($coursecontext1, $component);
@@ -547,7 +547,7 @@ class core_role_privacy_testcase extends provider_testcase {
             $user2->id,
             $admin->id
         ];
-        $this->assertEquals($expected, $userlist3->get_userids(), '', 0.0, 10, true);
+        $this->assertEqualsCanonicalizing($expected, $userlist3->get_userids());
 
         // The user list for coursecatcontext should user2 and admin (role creator).
         $userlist4 = new \core_privacy\local\request\userlist($coursecatcontext, $component);
@@ -557,7 +557,7 @@ class core_role_privacy_testcase extends provider_testcase {
             $user2->id,
             $admin->id
         ];
-        $this->assertEquals($expected, $userlist4->get_userids(), '', 0.0, 10, true);
+        $this->assertEqualsCanonicalizing($expected, $userlist4->get_userids());
 
         // The user list for systemcontext should user1 and admin (role creator).
         $userlist6 = new \core_privacy\local\request\userlist($systemcontext, $component);
@@ -567,7 +567,7 @@ class core_role_privacy_testcase extends provider_testcase {
             $user1->id,
             $admin->id
         ];
-        $this->assertEquals($expected, $userlist6->get_userids(), '', 0.0, 10, true);
+        $this->assertEqualsCanonicalizing($expected, $userlist6->get_userids());
 
         // The user list for cmcontext should user1, user2 and admin (role creator).
         $userlist7 = new \core_privacy\local\request\userlist($cmcontext, $component);
@@ -578,7 +578,7 @@ class core_role_privacy_testcase extends provider_testcase {
             $user2->id,
             $admin->id
         ];
-        $this->assertEquals($expected, $userlist7->get_userids(), '', 0.0, 10, true);
+        $this->assertEqualsCanonicalizing($expected, $userlist7->get_userids());
 
         // The user list for blockcontext should user1 and admin (role creator).
         $userlist8 = new \core_privacy\local\request\userlist($blockcontext, $component);
@@ -588,7 +588,7 @@ class core_role_privacy_testcase extends provider_testcase {
             $user1->id,
             $admin->id
         ];
-        $this->assertEquals($expected, $userlist8->get_userids(), '', 0.0, 10, true);
+        $this->assertEqualsCanonicalizing($expected, $userlist8->get_userids());
     }
 
     /**
@@ -744,4 +744,4 @@ class core_role_privacy_testcase extends provider_testcase {
         }
         return $rolesnames;
     }
-}
+}

admin/search.php

@@ -68,9 +68,16 @@ if ($errormsg !== '') {
 $showsettingslinks = true;
 
 if ($hassiteconfig) {
-    require_once("admin_settings_search_form.php");
-    $form = new admin_settings_search_form();
-    $form->display();
+    $data = [
+        'action' => new moodle_url('/admin/search.php'),
+        'btnclass' => 'btn-primary',
+        'inputname' => 'query',
+        'searchstring' => get_string('search'),
+        'query' => $query,
+        'extraclasses' => 'd-flex justify-content-center'
+    ];
+    echo $OUTPUT->render_from_template('core/search_input', $data);
+
     echo '<hr>';
     if ($query) {
         echo admin_search_settings_html($query);

admin/settings/analytics.php

@@ -131,15 +131,10 @@ if ($hassiteconfig && \core_analytics\manager::is_analytics_enabled()) {
             $timesplittingdefaults, $timesplittingoptions)
         );
 
-        // Predictions processor output dir.
-        $defaultmodeloutputdir = rtrim($CFG->dataroot, '/') . DIRECTORY_SEPARATOR . 'models';
-        if (empty(get_config('analytics', 'modeloutputdir')) && !file_exists($defaultmodeloutputdir) &&
-                is_writable($defaultmodeloutputdir)) {
-            // Automatically create the dir for them so users don't see the invalid value red cross.
-            mkdir($defaultmodeloutputdir, $CFG->directorypermissions, true);
-        }
+        // Predictions processor output dir - specify default in setting description (used if left blank).
+        $defaultmodeloutputdir = \core_analytics\model::default_output_dir();
         $settings->add(new admin_setting_configdirectory('analytics/modeloutputdir', new lang_string('modeloutputdir', 'analytics'),
-            new lang_string('modeloutputdirinfo', 'analytics'), $defaultmodeloutputdir));
+            new lang_string('modeloutputdirwithdefaultinfo', 'analytics', $defaultmodeloutputdir), ''));
 
         // Disable web interface evaluation and get predictions.
         $settings->add(new admin_setting_configcheckbox('analytics/onlycli', new lang_string('onlycli', 'analytics'),

admin/settings/courses.php

@@ -22,6 +22,8 @@
  * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 
+use core_admin\local\settings\filesize;
+
 $capabilities = array(
     'moodle/backup:backupcourse',
     'moodle/category:manage',
@@ -75,6 +77,17 @@ if ($hassiteconfig or has_any_capability($capabilities, $systemcontext)) {
     $temp->add(new admin_setting_configselect('moodlecourse/visible', new lang_string('visible'), new lang_string('visible_help'),
         1, $choices));
 
+    // Enable/disable download course content.
+    $choices = [
+        DOWNLOAD_COURSE_CONTENT_DISABLED => new lang_string('no'),
+        DOWNLOAD_COURSE_CONTENT_ENABLED => new lang_string('yes'),
+    ];
+    $downloadcontentsitedefault = new admin_setting_configselect('moodlecourse/downloadcontentsitedefault',
+            new lang_string('enabledownloadcoursecontent', 'course'),
+            new lang_string('downloadcoursecontent_help', 'course'), 0, $choices);
+    $downloadcontentsitedefault->add_dependent_on('downloadcoursecontentallowed');
+    $temp->add($downloadcontentsitedefault);
+
     // Course format.
     $temp->add(new admin_setting_heading('courseformathdr', new lang_string('type_format', 'plugin'), ''));
 
@@ -161,6 +174,21 @@ if ($hassiteconfig or has_any_capability($capabilities, $systemcontext)) {
 
     $ADMIN->add('courses', $temp);
 
+    // Download course content.
+    $downloadcoursedefaulturl = new moodle_url('/admin/settings.php', ['section' => 'coursesettings']);
+    $temp = new admin_settingpage('downloadcoursecontent', new lang_string('downloadcoursecontent', 'course'));
+    $temp->add(new admin_setting_configcheckbox('downloadcoursecontentallowed',
+            new lang_string('downloadcoursecontentallowed', 'admin'),
+            new lang_string('downloadcoursecontentallowed_desc', 'admin', $downloadcoursedefaulturl->out()), 0));
+
+    // 50MB default maximum size per file when downloading course content.
+    $defaultmaxdownloadsize = 50 * filesize::UNIT_MB;
+    $temp->add(new filesize('maxsizeperdownloadcoursefile', new lang_string('maxsizeperdownloadcoursefile', 'admin'),
+            new lang_string('maxsizeperdownloadcoursefile_desc', 'admin'), $defaultmaxdownloadsize, filesize::UNIT_MB));
+    $temp->hide_if('maxsizeperdownloadcoursefile', 'downloadcoursecontentallowed');
+
+    $ADMIN->add('courses', $temp);
+
     // "courserequests" settingpage.
     $temp = new admin_settingpage('courserequest', new lang_string('courserequest'));
     $temp->add(new admin_setting_configcheckbox('enablecourserequests',
@@ -184,6 +212,7 @@ if ($hassiteconfig or has_any_capability($capabilities, $systemcontext)) {
     // Add a category for the Activity Chooser.
     $ADMIN->add('courses', new admin_category('activitychooser', new lang_string('activitychoosercategory', 'course')));
     $temp = new admin_settingpage('activitychoosersettings', new lang_string('activitychoosersettings', 'course'));
+    // Tab mode for the activity chooser.
     $temp->add(
         new admin_setting_configselect(
             'activitychoosertabmode',
@@ -197,6 +226,31 @@ if ($hassiteconfig or has_any_capability($capabilities, $systemcontext)) {
             ]
         )
     );
+
+    // Build a list of plugins that use the footer callback.
+    $pluginswithfunction = get_plugins_with_function('custom_chooser_footer', 'lib.php');
+    $pluginsoptions = [];
+    $pluginsoptions[COURSE_CHOOSER_FOOTER_NONE] = get_string('activitychooserhidefooter', 'course');
+    if ($pluginswithfunction) {
+        foreach ($pluginswithfunction as $plugintype => $plugins) {
+            foreach ($plugins as $pluginname => $pluginfunction) {
+                $plugin = $plugintype.'_'.$pluginname;
+                $pluginsoptions[$plugin] = get_string('pluginname', $plugin);
+            }
+        }
+    }
+
+    // Select what plugin to show in the footer.
+    $temp->add(
+        new admin_setting_configselect(
+            'activitychooseractivefooter',
+            new lang_string('activitychooseractivefooter', 'course'),
+            new lang_string('activitychooseractivefooter_desc', 'course'),
+            COURSE_CHOOSER_FOOTER_NONE,
+            $pluginsoptions
+        )
+    );
+
     $ADMIN->add('activitychooser', $temp);
     $ADMIN->add('activitychooser',
         new admin_externalpage('activitychooserrecommended', new lang_string('activitychooserrecommendations', 'course'),
@@ -259,6 +313,9 @@ if ($hassiteconfig or has_any_capability($capabilities, $systemcontext)) {
         ['value' => 1, 'locked' => 0])
     );
 
+    $temp->add(new admin_setting_configcheckbox_with_lock('backup/backup_general_legacyfiles',
+        new lang_string('generallegacyfiles', 'backup'),
+        new lang_string('configlegacyfiles', 'backup'), array('value' => 1, 'locked' => 0)));
     $ADMIN->add('backups', $temp);
 
     // Create a page for general import configuration and defaults.
@@ -285,6 +342,9 @@ if ($hassiteconfig or has_any_capability($capabilities, $systemcontext)) {
         new lang_string('configgeneralcontentbankcontent', 'backup'),
         ['value' => 1, 'locked' => 0])
     );
+    $temp->add(new admin_setting_configcheckbox_with_lock('backup/backup_import_legacyfiles',
+        new lang_string('generallegacyfiles', 'backup'),
+        new lang_string('configlegacyfiles', 'backup'), array('value' => 1, 'locked' => 0)));
 
     $ADMIN->add('backups', $temp);
 
@@ -411,6 +471,10 @@ if ($hassiteconfig or has_any_capability($capabilities, $systemcontext)) {
         1)
     );
 
+    $temp->add(new admin_setting_configcheckbox('backup/backup_auto_legacyfiles',
+        new lang_string('generallegacyfiles', 'backup'),
+        new lang_string('configlegacyfiles', 'backup'), 1));
+
     //$temp->add(new admin_setting_configcheckbox('backup/backup_auto_messages', new lang_string('messages', 'message'), new lang_string('backupmessageshelp','message'), 0));
     //$temp->add(new admin_setting_configcheckbox('backup/backup_auto_blogs', new lang_string('blogs', 'blog'), new lang_string('backupblogshelp','blog'), 0));
 
@@ -473,6 +537,9 @@ if ($hassiteconfig or has_any_capability($capabilities, $systemcontext)) {
     $temp->add(new admin_setting_configcheckbox_with_lock('restore/restore_general_contentbankcontent',
         new lang_string('generalcontentbankcontent', 'backup'),
         new lang_string('configrestorecontentbankcontent', 'backup'), array('value' => 1, 'locked' => 0)));
+    $temp->add(new admin_setting_configcheckbox_with_lock('restore/restore_general_legacyfiles',
+        new lang_string('generallegacyfiles', 'backup'),
+        new lang_string('configlegacyfiles', 'backup'), array('value' => 1, 'locked' => 0)));
 
     // Restore defaults when merging into another course.
     $temp->add(new admin_setting_heading('mergerestoredefaults', new lang_string('mergerestoredefaults', 'backup'), ''));

admin/settings/development.php

@@ -41,6 +41,13 @@ if ($hassiteconfig) { // speedup for non-admins, add all caps used on this page
     $temp->add(new admin_setting_configcheckbox('debugdisplay', new lang_string('debugdisplay', 'admin'), new lang_string('configdebugdisplay', 'admin'), ini_get_bool('display_errors')));
     $temp->add(new admin_setting_configcheckbox('perfdebug', new lang_string('perfdebug', 'admin'), new lang_string('configperfdebug', 'admin'), '7', '15', '7'));
     $temp->add(new admin_setting_configcheckbox('debugstringids', new lang_string('debugstringids', 'admin'), new lang_string('debugstringids_desc', 'admin'), 0));
+    $temp->add(new admin_setting_configselect('debugsqltrace',
+            new lang_string('debugsqltrace', 'admin'),
+            new lang_string('debugsqltrace_desc', 'admin'), 0, array(
+               0 => new lang_string('disabled', 'admin'),
+               1 => new lang_string('debugsqltrace1', 'admin'),
+               2 => new lang_string('debugsqltrace2', 'admin'),
+             100 => new lang_string('debugsqltrace100', 'admin'))));
     $temp->add(new admin_setting_configcheckbox('debugvalidators', new lang_string('debugvalidators', 'admin'), new lang_string('configdebugvalidators', 'admin'), 0));
     $temp->add(new admin_setting_configcheckbox('debugpageinfo', new lang_string('debugpageinfo', 'admin'), new lang_string('configdebugpageinfo', 'admin'), 0));
     $ADMIN->add('development', $temp);

admin/settings/language.php

@@ -8,6 +8,8 @@ if ($hassiteconfig) {
     $temp = new admin_settingpage('langsettings', new lang_string('languagesettings', 'admin'));
     $temp->add(new admin_setting_configcheckbox('autolang', new lang_string('autolang', 'admin'), new lang_string('configautolang', 'admin'), 1));
     $temp->add(new admin_setting_configselect('lang', new lang_string('lang', 'admin'), new lang_string('configlang', 'admin'), current_language(), get_string_manager()->get_list_of_translations())); // $CFG->lang might be set in installer already, default en is in setup.php
+    $temp->add(new admin_setting_configcheckbox('autolangusercreation', new lang_string('autolangusercreation', 'admin'),
+        new lang_string('configautolangusercreation', 'admin'), 1));
     $temp->add(new admin_setting_configcheckbox('langmenu', new lang_string('langmenu', 'admin'), new lang_string('configlangmenu', 'admin'), 1));
     $temp->add(new admin_setting_langlist());
     $temp->add(new admin_setting_configcheckbox('langcache', new lang_string('langcache', 'admin'), new lang_string('langcache_desc', 'admin'), 1));

admin/settings/location.php

@@ -1,21 +1,57 @@
 <?php
+// This file is part of Moodle - https://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
 
-if ($hassiteconfig) { // speedup for non-admins, add all caps used on this page
+/**
+ * Define administration settings on the Location settings page.
+ *
+ * @package     core
+ * @category    admin
+ * @copyright   2006 Martin Dougiamas <martin@moodle.com>
+ * @license     https://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
 
-    // "locations" settingpage
-    $temp = new admin_settingpage('locationsettings', new lang_string('locationsettings', 'admin'));
-    $temp->add(new admin_setting_servertimezone());
-    $temp->add(new admin_setting_forcetimezone());
-    $temp->add(new admin_settings_country_select('country', new lang_string('country', 'admin'), new lang_string('configcountry', 'admin'), 0));
-    $temp->add(new admin_setting_configtext('defaultcity', new lang_string('defaultcity', 'admin'), new lang_string('defaultcity_help', 'admin'), ''));
+defined('MOODLE_INTERNAL') || die();
 
-    $temp->add(new admin_setting_heading('iplookup', new lang_string('iplookup', 'admin'), new lang_string('iplookupinfo', 'admin')));
-    $temp->add(new admin_setting_configfile('geoip2file', new lang_string('geoipfile', 'admin'),
-        new lang_string('configgeoipfile', 'admin', $CFG->dataroot.'/geoip/'), $CFG->dataroot.'/geoip/GeoLite2-City.mmdb'));
-    $temp->add(new admin_setting_configtext('googlemapkey3', new lang_string('googlemapkey3', 'admin'), new lang_string('googlemapkey3_help', 'admin'), '', PARAM_RAW, 60));
+if ($hassiteconfig) {
+    $temp = new admin_settingpage('locationsettings', new lang_string('locationsettings', 'core_admin'));
 
-    $temp->add(new admin_setting_configtext('allcountrycodes', new lang_string('allcountrycodes', 'admin'), new lang_string('configallcountrycodes', 'admin'), '', '/^(?:\w+(?:,\w+)*)?$/'));
+    if ($ADMIN->fulltree) {
+        $temp->add(new admin_setting_servertimezone());
+
+        $temp->add(new admin_setting_forcetimezone());
+
+        $temp->add(new admin_settings_country_select('country', new lang_string('country', 'core_admin'),
+            new lang_string('configcountry', 'core_admin'), 0));
+
+        $temp->add(new admin_setting_configtext('defaultcity', new lang_string('defaultcity', 'core_admin'),
+            new lang_string('defaultcity_help', 'core_admin'), ''));
+
+        $temp->add(new admin_setting_heading('iplookup', new lang_string('iplookup', 'core_admin'),
+            new lang_string('iplookupinfo', 'core_admin')));
+
+        $temp->add(new admin_setting_configfile('geoip2file', new lang_string('geoipfile', 'core_admin'),
+            new lang_string('configgeoipfile', 'core_admin', $CFG->dataroot . '/geoip/'),
+            $CFG->dataroot . '/geoip/GeoLite2-City.mmdb'));
+
+        $temp->add(new admin_setting_configtext('googlemapkey3', new lang_string('googlemapkey3', 'core_admin'),
+            new lang_string('googlemapkey3_help', 'core_admin'), '', PARAM_RAW, 60));
+
+        $temp->add(new admin_setting_countrycodes('allcountrycodes', new lang_string('allcountrycodes', 'core_admin'),
+            new lang_string('configallcountrycodes', 'core_admin')));
+    }
 
     $ADMIN->add('location', $temp);
-
-} // end of speedup
+}

admin/settings/payment.php

@@ -0,0 +1,29 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Adds payments links to the admin tree
+ *
+ * @package    core
+ * @copyright  2020 Marina Glancy
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+$ADMIN->add('payment', new admin_externalpage(
+    'paymentaccounts',
+    new lang_string('paymentaccounts', 'payment'),
+    new moodle_url("/payment/accounts.php"),
+    ['moodle/payment:manageaccounts', 'moodle/payment:viewpayments']));

admin/settings/plugins.php

@@ -167,6 +167,42 @@ if ($hassiteconfig) {
     $ADMIN->add('modules', new admin_category('antivirussettings', new lang_string('antiviruses', 'antivirus')));
     $temp = new admin_settingpage('manageantiviruses', new lang_string('antivirussettings', 'antivirus'));
     $temp->add(new admin_setting_manageantiviruses());
+
+    // Common settings.
+    $temp->add(new admin_setting_heading('antiviruscommonsettings', new lang_string('antiviruscommonsettings', 'antivirus'), ''));
+
+    // Alert email.
+    $temp->add(
+        new admin_setting_configtext(
+            'antivirus/notifyemail',
+            new lang_string('notifyemail', 'antivirus'),
+            new lang_string('notifyemail_help', 'antivirus'),
+            '',
+            PARAM_EMAIL
+        )
+    );
+
+    // Enable quarantine.
+    $temp->add(
+        new admin_setting_configcheckbox(
+            'antivirus/enablequarantine',
+            new lang_string('enablequarantine', 'antivirus'),
+            new lang_string('enablequarantine_help', 'antivirus',
+            \core\antivirus\quarantine::DEFAULT_QUARANTINE_FOLDER),
+            0
+        )
+    );
+
+    // Quarantine time.
+    $temp->add(
+        new admin_setting_configduration(
+            'antivirus/quarantinetime',
+            new lang_string('quarantinetime', 'antivirus'),
+            new lang_string('quarantinetime_desc', 'antivirus'),
+            \core\antivirus\quarantine::DEFAULT_QUARANTINE_TIME
+        )
+    );
+
     $ADMIN->add('antivirussettings', $temp);
     $plugins = core_plugin_manager::instance()->get_plugins_of_type('antivirus');
     core_collator::asort_objects_by_property($plugins, 'displayname');
@@ -244,6 +280,25 @@ if ($hassiteconfig) {
         $plugin->load_settings($ADMIN, 'mediaplayers', $hassiteconfig);
     }
 
+    // Payment gateway plugins.
+    $ADMIN->add('modules', new admin_category('paymentgateways', new lang_string('type_paygw_plural', 'plugin')));
+    $temp = new admin_settingpage('managepaymentgateways', new lang_string('type_paygwmanage', 'plugin'));
+    $temp->add(new \core_admin\local\settings\manage_payment_gateway_plugins());
+    $temp->add(new admin_setting_description(
+        'managepaymentgatewayspostfix',
+        '',
+        new lang_string('gotopaymentaccounts', 'payment',
+            html_writer::link(new moodle_url('/payment/accounts.php'), get_string('paymentaccounts', 'payment')))
+    ));
+    $ADMIN->add('paymentgateways', $temp);
+
+    $plugins = core_plugin_manager::instance()->get_plugins_of_type('paygw');
+    core_collator::asort_objects_by_property($plugins, 'displayname');
+    foreach ($plugins as $plugin) {
+        /** @var \core\plugininfo\paygw $plugin */
+        $plugin->load_settings($ADMIN, 'paymentgateways', $hassiteconfig);
+    }
+
     // Data format settings.
     $ADMIN->add('modules', new admin_category('dataformatsettings', new lang_string('dataformats')));
     $temp = new admin_settingpage('managedataformats', new lang_string('managedataformats'));
@@ -549,8 +604,19 @@ if ($hassiteconfig) {
 
     // Search engine selection.
     $temp->add(new admin_setting_heading('searchengineheading', new lang_string('searchengine', 'admin'), ''));
-    $temp->add(new admin_setting_configselect('searchengine',
-                                new lang_string('selectsearchengine', 'admin'), '', 'simpledb', $engines));
+    $searchengineselect = new admin_setting_configselect('searchengine',
+            new lang_string('selectsearchengine', 'admin'), '', 'simpledb', $engines);
+    $searchengineselect->set_validate_function(function(string $value): string {
+        global $CFG;
+
+        // Check nobody's setting the indexing and query-only server to the same one.
+        if (isset($CFG->searchenginequeryonly) && $CFG->searchenginequeryonly === $value) {
+            return get_string('searchenginequeryonlysame', 'admin');
+        } else {
+            return '';
+        }
+    });
+    $temp->add($searchengineselect);
     $temp->add(new admin_setting_heading('searchoptionsheading', new lang_string('searchoptions', 'admin'), ''));
     $temp->add(new admin_setting_configcheckbox('searchindexwhendisabled',
             new lang_string('searchindexwhendisabled', 'admin'), new lang_string('searchindexwhendisabled_desc', 'admin'),
@@ -590,6 +656,43 @@ if ($hassiteconfig) {
         new lang_string('searchhideallcategory_desc', 'admin'),
         0));
 
+    $temp->add(new admin_setting_heading('searchmanagement', new lang_string('searchmanagement', 'admin'),
+            new lang_string('searchmanagement_desc', 'admin')));
+
+    // Get list of search engines including those with alternate settings.
+    $searchenginequeryonlyselect = new admin_setting_configselect('searchenginequeryonly',
+            new lang_string('searchenginequeryonly', 'admin'),
+            new lang_string('searchenginequeryonly_desc', 'admin'), '', function() use($engines) {
+                $options = ['' => new lang_string('searchenginequeryonly_none', 'admin')];
+                foreach ($engines as $name => $display) {
+                    $options[$name] = $display;
+
+                    $classname = '\search_' . $name . '\engine';
+                    $engine = new $classname;
+                    if ($engine->has_alternate_configuration()) {
+                        $options[$name . '-alternate'] =
+                                new lang_string('searchenginealternatesettings', 'admin', $display);
+                    }
+                }
+                return $options;
+            });
+    $searchenginequeryonlyselect->set_validate_function(function(string $value): string {
+        global $CFG;
+
+        // Check nobody's setting the indexing and query-only server to the same one.
+        if (isset($CFG->searchengine) && $CFG->searchengine === $value) {
+            return get_string('searchenginequeryonlysame', 'admin');
+        } else {
+            return '';
+        }
+    });
+    $temp->add($searchenginequeryonlyselect);
+    $temp->add(new admin_setting_configcheckbox('searchbannerenable',
+            new lang_string('searchbannerenable', 'admin'), new lang_string('searchbannerenable_desc', 'admin'),
+            0));
+    $temp->add(new admin_setting_confightmleditor('searchbanner',
+            new lang_string('searchbanner', 'admin'), '', ''));
+
     $ADMIN->add('searchplugins', $temp);
     $ADMIN->add('searchplugins', new admin_externalpage('searchareas', new lang_string('searchareas', 'admin'),
         new moodle_url('/admin/searchareas.php')));
@@ -645,14 +748,14 @@ if ($hassiteconfig) {
 
 // Content bank content types.
 if ($hassiteconfig) {
-    $ADMIN->add('modules', new admin_category('contenbanksettings', new lang_string('contentbank')));
+    $ADMIN->add('modules', new admin_category('contentbanksettings', new lang_string('contentbank')));
     $temp = new admin_settingpage('managecontentbanktypes', new lang_string('managecontentbanktypes'));
     $temp->add(new admin_setting_managecontentbankcontenttypes());
-    $ADMIN->add('contenbanksettings', $temp);
+    $ADMIN->add('contentbanksettings', $temp);
     $plugins = core_plugin_manager::instance()->get_plugins_of_type('contenttype');
     foreach ($plugins as $plugin) {
         /** @var \core\plugininfo\contentbank $plugin */
-        $plugin->load_settings($ADMIN, 'contenbanksettings', $hassiteconfig);
+        $plugin->load_settings($ADMIN, 'contentbanksettings', $hassiteconfig);
     }
 }
 

admin/settings/security.php

@@ -160,6 +160,23 @@ if ($hassiteconfig) { // speedup for non-admins, add all caps used on this page
     $temp->add(new admin_setting_configportlist('curlsecurityallowedport',
                new lang_string('curlsecurityallowedport', 'admin'),
                new lang_string('curlsecurityallowedportsyntax', 'admin'), ""));
+
+    // HTTP Header referrer policy settings.
+    $referreroptions = [
+        'default' => get_string('referrernone', 'admin'),
+        'no-referrer' => 'no-referrer',
+        'no-referrer-when-downgrade' => 'no-referrer-when-downgrade',
+        'origin' => 'origin',
+        'origin-when-cross-origin' => 'origin-when-cross-origin',
+        'same-origin' => 'same-origin',
+        'strict-origin' => 'strict-origin',
+        'strict-origin-when-cross-origin' => 'strict-origin-when-cross-origin',
+        'unsafe-url' => 'unsafe-url',
+    ];
+    $temp->add(new admin_setting_configselect('referrerpolicy',
+            new lang_string('referrerpolicy', 'admin'),
+            new lang_string('referrerpolicydesc', 'admin'), 'default', $referreroptions));
+
     $ADMIN->add('security', $temp);
 
     // "notifications" settingpage

admin/settings/server.php

@@ -1,162 +1,225 @@
 <?php
+// This file is part of Moodle - https://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
 
-// This file defines settingpages and externalpages under the "server" category
+/**
+ * Defines settingpages and externalpages under the "server" category.
+ *
+ * @package     core
+ * @category    admin
+ * @copyright   2006 Martin Dougiamas
+ * @license     http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
 
-if ($hassiteconfig) { // speedup for non-admins, add all caps used on this page
+defined('MOODLE_INTERNAL') || die();
 
-// "systempaths" settingpage
-$temp = new admin_settingpage('systempaths', new lang_string('systempaths','admin'));
-$temp->add(new admin_setting_configexecutable('pathtophp', new lang_string('pathtophp', 'admin'),
-    new lang_string('configpathtophp', 'admin'), ''));
-$temp->add(new admin_setting_configexecutable('pathtodu', new lang_string('pathtodu', 'admin'), new lang_string('configpathtodu', 'admin'), ''));
-$temp->add(new admin_setting_configexecutable('aspellpath', new lang_string('aspellpath', 'admin'), new lang_string('edhelpaspellpath'), ''));
-$temp->add(new admin_setting_configexecutable('pathtodot', new lang_string('pathtodot', 'admin'), new lang_string('pathtodot_help', 'admin'), ''));
-$temp->add(new admin_setting_configexecutable('pathtogs', new lang_string('pathtogs', 'admin'), new lang_string('pathtogs_help', 'admin'), '/usr/bin/gs'));
-$temp->add(new admin_setting_configexecutable('pathtopython', new lang_string('pathtopython', 'admin'),
-    new lang_string('pathtopythondesc', 'admin'), ''));
-$ADMIN->add('server', $temp);
+if ($hassiteconfig) {
+    // System paths.
+    $temp = new admin_settingpage('systempaths', new lang_string('systempaths', 'admin'));
+    $temp->add(new admin_setting_configexecutable('pathtophp', new lang_string('pathtophp', 'admin'),
+        new lang_string('configpathtophp', 'admin'), ''));
+    $temp->add(new admin_setting_configexecutable('pathtodu', new lang_string('pathtodu', 'admin'),
+        new lang_string('configpathtodu', 'admin'), ''));
+    $temp->add(new admin_setting_configexecutable('aspellpath', new lang_string('aspellpath', 'admin'),
+        new lang_string('edhelpaspellpath'), ''));
+    $temp->add(new admin_setting_configexecutable('pathtodot', new lang_string('pathtodot', 'admin'),
+        new lang_string('pathtodot_help', 'admin'), ''));
+    $temp->add(new admin_setting_configexecutable('pathtogs', new lang_string('pathtogs', 'admin'),
+        new lang_string('pathtogs_help', 'admin'), '/usr/bin/gs'));
+    $temp->add(new admin_setting_configexecutable('pathtopython', new lang_string('pathtopython', 'admin'),
+        new lang_string('pathtopythondesc', 'admin'), ''));
+    $ADMIN->add('server', $temp);
 
+    // Support contact.
+    $temp = new admin_settingpage('supportcontact', new lang_string('supportcontact', 'admin'));
+    $primaryadmin = get_admin();
+    if ($primaryadmin) {
+        $primaryadminemail = $primaryadmin->email;
+        $primaryadminname = fullname($primaryadmin, true);
+    } else {
+        // No defaults during installation - admin user must be created first.
+        $primaryadminemail = null;
+        $primaryadminname = null;
+    }
+    $temp->add(new admin_setting_configtext('supportname', new lang_string('supportname', 'admin'),
+        new lang_string('configsupportname', 'admin'), $primaryadminname, PARAM_NOTAGS));
+    $setting = new admin_setting_configtext('supportemail', new lang_string('supportemail', 'admin'),
+        new lang_string('configsupportemail', 'admin'), $primaryadminemail, PARAM_EMAIL);
+    $setting->set_force_ltr(true);
+    $temp->add($setting);
+    $temp->add(new admin_setting_configtext('supportpage', new lang_string('supportpage', 'admin'),
+        new lang_string('configsupportpage', 'admin'), '', PARAM_URL));
+    $ADMIN->add('server', $temp);
 
+    // Session handling.
+    $temp = new admin_settingpage('sessionhandling', new lang_string('sessionhandling', 'admin'));
+    if (empty($CFG->session_handler_class) and $DB->session_lock_supported()) {
+        $temp->add(new admin_setting_configcheckbox('dbsessions', new lang_string('dbsessions', 'admin'),
+            new lang_string('configdbsessions', 'admin'), 0));
+    }
 
-// "supportcontact" settingpage
-$temp = new admin_settingpage('supportcontact', new lang_string('supportcontact','admin'));
-$primaryadmin = get_admin();
-if ($primaryadmin) {
-    $primaryadminemail = $primaryadmin->email;
-    $primaryadminname  = fullname($primaryadmin, true);
-} else {
-    // no defaults during installation - admin user must be created first
-    $primaryadminemail = NULL;
-    $primaryadminname  = NULL;
-}
-$temp->add(new admin_setting_configtext('supportname', new lang_string('supportname', 'admin'),
-    new lang_string('configsupportname', 'admin'), $primaryadminname, PARAM_NOTAGS));
-$setting = new admin_setting_configtext('supportemail', new lang_string('supportemail', 'admin'),
-    new lang_string('configsupportemail', 'admin'), $primaryadminemail, PARAM_EMAIL);
-$setting->set_force_ltr(true);
-$temp->add($setting);
-$temp->add(new admin_setting_configtext('supportpage', new lang_string('supportpage', 'admin'), new lang_string('configsupportpage', 'admin'), '', PARAM_URL));
-$ADMIN->add('server', $temp);
+    $temp->add(new admin_setting_configduration('sessiontimeout', new lang_string('sessiontimeout', 'admin'),
+        new lang_string('configsessiontimeout', 'admin'), 8 * 60 * 60));
 
+    $temp->add(new admin_setting_configtext('sessioncookie', new lang_string('sessioncookie', 'admin'),
+        new lang_string('configsessioncookie', 'admin'), '', PARAM_ALPHANUM));
+    $temp->add(new admin_setting_configtext('sessioncookiepath', new lang_string('sessioncookiepath', 'admin'),
+        new lang_string('configsessioncookiepath', 'admin'), '', PARAM_RAW));
+    $temp->add(new admin_setting_configtext('sessioncookiedomain', new lang_string('sessioncookiedomain', 'admin'),
+        new lang_string('configsessioncookiedomain', 'admin'), '', PARAM_RAW, 50));
+    $ADMIN->add('server', $temp);
 
-// "sessionhandling" settingpage
-$temp = new admin_settingpage('sessionhandling', new lang_string('sessionhandling', 'admin'));
-if (empty($CFG->session_handler_class) and $DB->session_lock_supported()) {
-    $temp->add(new admin_setting_configcheckbox('dbsessions', new lang_string('dbsessions', 'admin'), new lang_string('configdbsessions', 'admin'), 0));
-}
+    // Statistics.
+    $temp = new admin_settingpage('stats', new lang_string('stats'), 'moodle/site:config', empty($CFG->enablestats));
+    $temp->add(new admin_setting_configselect('statsfirstrun', new lang_string('statsfirstrun', 'admin'),
+        new lang_string('configstatsfirstrun', 'admin'), 'none',
+        [
+            'none' => new lang_string('none'),
+            60 * 60 * 24 * 7 => new lang_string('numweeks', 'moodle', 1),
+            60 * 60 * 24 * 14 => new lang_string('numweeks', 'moodle', 2),
+            60 * 60 * 24 * 21 => new lang_string('numweeks', 'moodle', 3),
+            60 * 60 * 24 * 28 => new lang_string('nummonths', 'moodle', 1),
+            60 * 60 * 24 * 56 => new lang_string('nummonths', 'moodle', 2),
+            60 * 60 * 24 * 84 => new lang_string('nummonths', 'moodle', 3),
+            60 * 60 * 24 * 112 => new lang_string('nummonths', 'moodle', 4),
+            60 * 60 * 24 * 140 => new lang_string('nummonths', 'moodle', 5),
+            60 * 60 * 24 * 168 => new lang_string('nummonths', 'moodle', 6),
+            'all' => new lang_string('all')
+        ]
+    ));
+    $temp->add(new admin_setting_configselect('statsmaxruntime', new lang_string('statsmaxruntime', 'admin'),
+        new lang_string('configstatsmaxruntime3', 'admin'), 0,
+        [
+            0 => new lang_string('untilcomplete'),
+            60 * 30 => '10 ' . new lang_string('minutes'),
+            60 * 30 => '30 ' . new lang_string('minutes'),
+            60 * 60 => '1 ' . new lang_string('hour'),
+            60 * 60 * 2 => '2 ' . new lang_string('hours'),
+            60 * 60 * 3 => '3 ' . new lang_string('hours'),
+            60 * 60 * 4 => '4 ' . new lang_string('hours'),
+            60 * 60 * 5 => '5 ' . new lang_string('hours'),
+            60 * 60 * 6 => '6 ' . new lang_string('hours'),
+            60 * 60 * 7 => '7 ' . new lang_string('hours'),
+            60 * 60 * 8 => '8 ' . new lang_string('hours'),
+        ]
+    ));
+    $temp->add(new admin_setting_configtext('statsruntimedays', new lang_string('statsruntimedays', 'admin'),
+        new lang_string('configstatsruntimedays', 'admin'), 31, PARAM_INT));
+    $temp->add(new admin_setting_configtext('statsuserthreshold', new lang_string('statsuserthreshold', 'admin'),
+        new lang_string('configstatsuserthreshold', 'admin'), 0, PARAM_INT));
+    $ADMIN->add('server', $temp);
 
-$temp->add(new admin_setting_configduration('sessiontimeout', new lang_string('sessiontimeout', 'admin'),
-    new lang_string('configsessiontimeout', 'admin'), 8 * 60 * 60));
+    // HTTP.
+    $temp = new admin_settingpage('http', new lang_string('http', 'admin'));
+    $temp->add(new admin_setting_configcheckbox('slasharguments', new lang_string('slasharguments', 'admin'),
+        new lang_string('configslasharguments', 'admin'), 1));
+    $temp->add(new admin_setting_heading('reverseproxy', new lang_string('reverseproxy', 'admin'), '', ''));
+    $options = [
+        0 => 'HTTP_CLIENT_IP, HTTP_X_FORWARDED_FOR, REMOTE_ADDR',
+        GETREMOTEADDR_SKIP_HTTP_CLIENT_IP => 'HTTP_X_FORWARDED_FOR, REMOTE_ADDR',
+        GETREMOTEADDR_SKIP_HTTP_X_FORWARDED_FOR => 'HTTP_CLIENT, REMOTE_ADDR',
+        GETREMOTEADDR_SKIP_HTTP_X_FORWARDED_FOR | GETREMOTEADDR_SKIP_HTTP_CLIENT_IP => 'REMOTE_ADDR'
+    ];
+    $temp->add(new admin_setting_configselect('getremoteaddrconf', new lang_string('getremoteaddrconf', 'admin'),
+        new lang_string('configgetremoteaddrconf', 'admin'),
+        GETREMOTEADDR_SKIP_HTTP_X_FORWARDED_FOR | GETREMOTEADDR_SKIP_HTTP_CLIENT_IP, $options));
+    $temp->add(new admin_setting_configtext('reverseproxyignore', new lang_string('reverseproxyignore', 'admin'),
+        new lang_string('configreverseproxyignore', 'admin'), ''));
 
-$temp->add(new admin_setting_configtext('sessioncookie', new lang_string('sessioncookie', 'admin'), new lang_string('configsessioncookie', 'admin'), '', PARAM_ALPHANUM));
-$temp->add(new admin_setting_configtext('sessioncookiepath', new lang_string('sessioncookiepath', 'admin'), new lang_string('configsessioncookiepath', 'admin'), '', PARAM_RAW));
-$temp->add(new admin_setting_configtext('sessioncookiedomain', new lang_string('sessioncookiedomain', 'admin'), new lang_string('configsessioncookiedomain', 'admin'), '', PARAM_RAW, 50));
-$ADMIN->add('server', $temp);
+    $temp->add(new admin_setting_heading('webproxy', new lang_string('webproxy', 'admin'),
+        new lang_string('webproxyinfo', 'admin')));
+    $temp->add(new admin_setting_configtext('proxyhost', new lang_string('proxyhost', 'admin'),
+        new lang_string('configproxyhost', 'admin'), '', PARAM_HOST));
+    $temp->add(new admin_setting_configtext('proxyport', new lang_string('proxyport', 'admin'),
+        new lang_string('configproxyport', 'admin'), 0, PARAM_INT));
+    $options = ['HTTP' => 'HTTP'];
+    if (defined('CURLPROXY_SOCKS5')) {
+        $options['SOCKS5'] = 'SOCKS5';
+    }
+    $temp->add(new admin_setting_configselect('proxytype', new lang_string('proxytype', 'admin'),
+        new lang_string('configproxytype', 'admin'), 'HTTP', $options));
+    $temp->add(new admin_setting_configtext('proxyuser', new lang_string('proxyuser', 'admin'),
+        new lang_string('configproxyuser', 'admin'), ''));
+    $temp->add(new admin_setting_configpasswordunmask('proxypassword', new lang_string('proxypassword', 'admin'),
+        new lang_string('configproxypassword', 'admin'), ''));
+    $temp->add(new admin_setting_configtext('proxybypass', new lang_string('proxybypass', 'admin'),
+        new lang_string('configproxybypass', 'admin'), 'localhost, 127.0.0.1'));
+    $ADMIN->add('server', $temp);
 
+    $temp = new admin_settingpage('maintenancemode', new lang_string('sitemaintenancemode', 'admin'));
+    $options = [0 => new lang_string('disable'), 1 => new lang_string('enable')];
+    $temp->add(new admin_setting_configselect('maintenance_enabled', new lang_string('sitemaintenancemode', 'admin'),
+        new lang_string('helpsitemaintenance', 'admin'), 0, $options));
+    $temp->add(new admin_setting_confightmleditor('maintenance_message', new lang_string('optionalmaintenancemessage', 'admin'),
+        '', ''));
+    $ADMIN->add('server', $temp);
 
-// "stats" settingpage
-$temp = new admin_settingpage('stats', new lang_string('stats'), 'moodle/site:config', empty($CFG->enablestats));
-$temp->add(new admin_setting_configselect('statsfirstrun', new lang_string('statsfirstrun', 'admin'), new lang_string('configstatsfirstrun', 'admin'), 'none', array('none' => new lang_string('none'),
-                                                                                                                                                           60*60*24*7 => new lang_string('numweeks','moodle',1),
-                                                                                                                                                           60*60*24*14 => new lang_string('numweeks','moodle',2),
-                                                                                                                                                           60*60*24*21 => new lang_string('numweeks','moodle',3),
-                                                                                                                                                           60*60*24*28 => new lang_string('nummonths','moodle',1),
-                                                                                                                                                           60*60*24*56 => new lang_string('nummonths','moodle',2),
-                                                                                                                                                           60*60*24*84 => new lang_string('nummonths','moodle',3),
-                                                                                                                                                           60*60*24*112 => new lang_string('nummonths','moodle',4),
-                                                                                                                                                           60*60*24*140 => new lang_string('nummonths','moodle',5),
-                                                                                                                                                           60*60*24*168 => new lang_string('nummonths','moodle',6),
-                                                                                                                                                           'all' => new lang_string('all') )));
-$temp->add(new admin_setting_configselect('statsmaxruntime', new lang_string('statsmaxruntime', 'admin'), new lang_string('configstatsmaxruntime3', 'admin'), 0, array(0 => new lang_string('untilcomplete'),
-                                                                                                                                                            60*30 => '10 '.new lang_string('minutes'),
-                                                                                                                                                            60*30 => '30 '.new lang_string('minutes'),
-                                                                                                                                                            60*60 => '1 '.new lang_string('hour'),
-                                                                                                                                                            60*60*2 => '2 '.new lang_string('hours'),
-                                                                                                                                                            60*60*3 => '3 '.new lang_string('hours'),
-                                                                                                                                                            60*60*4 => '4 '.new lang_string('hours'),
-                                                                                                                                                            60*60*5 => '5 '.new lang_string('hours'),
-                                                                                                                                                            60*60*6 => '6 '.new lang_string('hours'),
-                                                                                                                                                            60*60*7 => '7 '.new lang_string('hours'),
-                                                                                                                                                            60*60*8 => '8 '.new lang_string('hours') )));
-$temp->add(new admin_setting_configtext('statsruntimedays', new lang_string('statsruntimedays', 'admin'), new lang_string('configstatsruntimedays', 'admin'), 31, PARAM_INT));
-$temp->add(new admin_setting_configtext('statsuserthreshold', new lang_string('statsuserthreshold', 'admin'), new lang_string('configstatsuserthreshold', 'admin'), 0, PARAM_INT));
-$ADMIN->add('server', $temp);
+    // Cleanup.
+    $temp = new admin_settingpage('cleanup', new lang_string('cleanup', 'admin'));
+    $temp->add(new admin_setting_configselect('deleteunconfirmed', new lang_string('deleteunconfirmed', 'admin'),
+        new lang_string('configdeleteunconfirmed', 'admin'), 168,
+        [
+            0 => new lang_string('never'),
+            168 => new lang_string('numdays', '', 7),
+            144 => new lang_string('numdays', '', 6),
+            120 => new lang_string('numdays', '', 5),
+            96 => new lang_string('numdays', '', 4),
+            72 => new lang_string('numdays', '', 3),
+            48 => new lang_string('numdays', '', 2),
+            24 => new lang_string('numdays', '', 1),
+            12 => new lang_string('numhours', '', 12),
+            6 => new lang_string('numhours', '', 6),
+            1 => new lang_string('numhours', '', 1),
+        ]
+    ));
 
+    $temp->add(new admin_setting_configselect('deleteincompleteusers', new lang_string('deleteincompleteusers', 'admin'),
+        new lang_string('configdeleteincompleteusers', 'admin'), 0,
+        [
+            0 => new lang_string('never'),
+            168 => new lang_string('numdays', '', 7),
+            144 => new lang_string('numdays', '', 6),
+            120 => new lang_string('numdays', '', 5),
+            96 => new lang_string('numdays', '', 4),
+            72 => new lang_string('numdays', '', 3),
+            48 => new lang_string('numdays', '', 2),
+            24 => new lang_string('numdays', '', 1),
+        ]
+    ));
 
-// "http" settingpage
-$temp = new admin_settingpage('http', new lang_string('http', 'admin'));
-$temp->add(new admin_setting_configcheckbox('slasharguments', new lang_string('slasharguments', 'admin'), new lang_string('configslasharguments', 'admin'), 1));
-$temp->add(new admin_setting_heading('reverseproxy', new lang_string('reverseproxy', 'admin'), '', ''));
-$options = array(
-    0 => 'HTTP_CLIENT_IP, HTTP_X_FORWARDED_FOR, REMOTE_ADDR',
-    GETREMOTEADDR_SKIP_HTTP_CLIENT_IP => 'HTTP_X_FORWARDED_FOR, REMOTE_ADDR',
-    GETREMOTEADDR_SKIP_HTTP_X_FORWARDED_FOR => 'HTTP_CLIENT, REMOTE_ADDR',
-    GETREMOTEADDR_SKIP_HTTP_X_FORWARDED_FOR|GETREMOTEADDR_SKIP_HTTP_CLIENT_IP => 'REMOTE_ADDR');
-$temp->add(new admin_setting_configselect('getremoteaddrconf', new lang_string('getremoteaddrconf', 'admin'),
-    new lang_string('configgetremoteaddrconf', 'admin'),
-    GETREMOTEADDR_SKIP_HTTP_X_FORWARDED_FOR|GETREMOTEADDR_SKIP_HTTP_CLIENT_IP, $options));
-$temp->add(new admin_setting_configtext('reverseproxyignore', new lang_string('reverseproxyignore', 'admin'), new lang_string('configreverseproxyignore', 'admin'), ''));
+    $temp->add(new admin_setting_configcheckbox('disablegradehistory', new lang_string('disablegradehistory', 'grades'),
+        new lang_string('disablegradehistory_help', 'grades'), 0));
 
-$temp->add(new admin_setting_heading('webproxy', new lang_string('webproxy', 'admin'), new lang_string('webproxyinfo', 'admin')));
-$temp->add(new admin_setting_configtext('proxyhost', new lang_string('proxyhost', 'admin'), new lang_string('configproxyhost', 'admin'), '', PARAM_HOST));
-$temp->add(new admin_setting_configtext('proxyport', new lang_string('proxyport', 'admin'), new lang_string('configproxyport', 'admin'), 0, PARAM_INT));
-$options = array('HTTP'=>'HTTP');
-if (defined('CURLPROXY_SOCKS5')) {
-    $options['SOCKS5'] = 'SOCKS5';
-}
-$temp->add(new admin_setting_configselect('proxytype', new lang_string('proxytype', 'admin'), new lang_string('configproxytype','admin'), 'HTTP', $options));
-$temp->add(new admin_setting_configtext('proxyuser', new lang_string('proxyuser', 'admin'), new lang_string('configproxyuser', 'admin'), ''));
-$temp->add(new admin_setting_configpasswordunmask('proxypassword', new lang_string('proxypassword', 'admin'), new lang_string('configproxypassword', 'admin'), ''));
-$temp->add(new admin_setting_configtext('proxybypass', new lang_string('proxybypass', 'admin'), new lang_string('configproxybypass', 'admin'), 'localhost, 127.0.0.1'));
-$ADMIN->add('server', $temp);
+    $temp->add(new admin_setting_configselect('gradehistorylifetime', new lang_string('gradehistorylifetime', 'grades'),
+        new lang_string('gradehistorylifetime_help', 'grades'), 0,
+        [
+            0 => new lang_string('neverdeletehistory', 'grades'),
+            1000 => new lang_string('numdays', '', 1000),
+            365 => new lang_string('numdays', '', 365),
+            180 => new lang_string('numdays', '', 180),
+            150 => new lang_string('numdays', '', 150),
+            120 => new lang_string('numdays', '', 120),
+            90 => new lang_string('numdays', '', 90),
+            60 => new lang_string('numdays', '', 60),
+            30 => new lang_string('numdays', '', 30),
+        ]
+    ));
 
-$temp = new admin_settingpage('maintenancemode', new lang_string('sitemaintenancemode', 'admin'));
-$options = array(0=>new lang_string('disable'), 1=>new lang_string('enable'));
-$temp->add(new admin_setting_configselect('maintenance_enabled', new lang_string('sitemaintenancemode', 'admin'),
-                                          new lang_string('helpsitemaintenance', 'admin'), 0, $options));
-$temp->add(new admin_setting_confightmleditor('maintenance_message', new lang_string('optionalmaintenancemessage', 'admin'),
-                                              '', ''));
-$ADMIN->add('server', $temp);
-
-$temp = new admin_settingpage('cleanup', new lang_string('cleanup', 'admin'));
-$temp->add(new admin_setting_configselect('deleteunconfirmed', new lang_string('deleteunconfirmed', 'admin'), new lang_string('configdeleteunconfirmed', 'admin'), 168, array(0 => new lang_string('never'),
-                                                                                                                                                                    168 => new lang_string('numdays', '', 7),
-                                                                                                                                                                    144 => new lang_string('numdays', '', 6),
-                                                                                                                                                                    120 => new lang_string('numdays', '', 5),
-                                                                                                                                                                    96 => new lang_string('numdays', '', 4),
-                                                                                                                                                                    72 => new lang_string('numdays', '', 3),
-                                                                                                                                                                    48 => new lang_string('numdays', '', 2),
-                                                                                                                                                                    24 => new lang_string('numdays', '', 1),
-                                                                                                                                                                    12 => new lang_string('numhours', '', 12),
-                                                                                                                                                                    6 => new lang_string('numhours', '', 6),
-                                                                                                                                                                    1 => new lang_string('numhours', '', 1))));
-
-$temp->add(new admin_setting_configselect('deleteincompleteusers', new lang_string('deleteincompleteusers', 'admin'), new lang_string('configdeleteincompleteusers', 'admin'), 0, array(0 => new lang_string('never'),
-                                                                                                                                                                    168 => new lang_string('numdays', '', 7),
-                                                                                                                                                                    144 => new lang_string('numdays', '', 6),
-                                                                                                                                                                    120 => new lang_string('numdays', '', 5),
-                                                                                                                                                                    96 => new lang_string('numdays', '', 4),
-                                                                                                                                                                    72 => new lang_string('numdays', '', 3),
-                                                                                                                                                                    48 => new lang_string('numdays', '', 2),
-                                                                                                                                                                    24 => new lang_string('numdays', '', 1))));
-
-
-$temp->add(new admin_setting_configcheckbox('disablegradehistory', new lang_string('disablegradehistory', 'grades'),
-                                            new lang_string('disablegradehistory_help', 'grades'), 0));
-
-$temp->add(new admin_setting_configselect('gradehistorylifetime', new lang_string('gradehistorylifetime', 'grades'),
-                                          new lang_string('gradehistorylifetime_help', 'grades'), 0, array(0 => new lang_string('neverdeletehistory', 'grades'),
-                                                                                                   1000 => new lang_string('numdays', '', 1000),
-                                                                                                    365 => new lang_string('numdays', '', 365),
-                                                                                                    180 => new lang_string('numdays', '', 180),
-                                                                                                    150 => new lang_string('numdays', '', 150),
-                                                                                                    120 => new lang_string('numdays', '', 120),
-                                                                                                     90 => new lang_string('numdays', '', 90),
-                                                                                                     60 => new lang_string('numdays', '', 60),
-                                                                                                     30 => new lang_string('numdays', '', 30))));
-
-$temp->add(new admin_setting_configselect('tempdatafoldercleanup', new lang_string('tempdatafoldercleanup', 'admin'),
-        new lang_string('configtempdatafoldercleanup', 'admin'), 168, array(
+    $temp->add(new admin_setting_configselect('tempdatafoldercleanup', new lang_string('tempdatafoldercleanup', 'admin'),
+        new lang_string('configtempdatafoldercleanup', 'admin'), 168,
+        [
             1 => new lang_string('numhours', '', 1),
             3 => new lang_string('numhours', '', 3),
             6 => new lang_string('numhours', '', 6),
@@ -166,224 +229,303 @@ $temp->add(new admin_setting_configselect('tempdatafoldercleanup', new lang_stri
             24 => new lang_string('numhours', '', 24),
             48 => new lang_string('numdays', '', 2),
             168 => new lang_string('numdays', '', 7),
-)));
+        ]
+    ));
 
-$ADMIN->add('server', $temp);
+    $ADMIN->add('server', $temp);
 
     $temp->add(new admin_setting_configduration('filescleanupperiod',
         new lang_string('filescleanupperiod', 'admin'),
         new lang_string('filescleanupperiod_help', 'admin'),
         86400));
 
-$ADMIN->add('server', new admin_externalpage('environment', new lang_string('environment','admin'), "$CFG->wwwroot/$CFG->admin/environment.php"));
-$ADMIN->add('server', new admin_externalpage('phpinfo', new lang_string('phpinfo'), "$CFG->wwwroot/$CFG->admin/phpinfo.php"));
-$ADMIN->add('server', new admin_externalpage('testoutgoingmailconf', new lang_string('testoutgoingmailconf', 'admin'),
-            new moodle_url("$CFG->wwwroot/$CFG->admin/testoutgoingmailconf.php"), 'moodle/site:config', true));
+    // Environment.
+    $ADMIN->add('server', new admin_externalpage('environment', new lang_string('environment', 'admin'),
+        "{$CFG->wwwroot}/{$CFG->admin}/environment.php"));
 
+    // PHP info.
+    $ADMIN->add('server', new admin_externalpage('phpinfo', new lang_string('phpinfo'),
+        "{$CFG->wwwroot}/{$CFG->admin}/phpinfo.php"));
 
-// "performance" settingpage
-$temp = new admin_settingpage('performance', new lang_string('performance', 'admin'));
+    // Test outgoing mail configuration (hidden, accessed via direct link from the settings page).
+    $ADMIN->add('server', new admin_externalpage('testoutgoingmailconf', new lang_string('testoutgoingmailconf', 'admin'),
+        new moodle_url('/admin/testoutgoingmailconf.php'), 'moodle/site:config', true));
 
-// Memory limit options for large administration tasks.
-$memoryoptions = array(
-    '64M' => '64M',
-    '128M' => '128M',
-    '256M' => '256M',
-    '512M' => '512M',
-    '1024M' => '1024M',
-    '2048M' => '2048M');
+    // Performance.
+    $temp = new admin_settingpage('performance', new lang_string('performance', 'admin'));
 
-// Allow larger memory usage for 64-bit sites only.
-if (PHP_INT_SIZE === 8) {
-    $memoryoptions['3072M'] = '3072M';
-    $memoryoptions['4096M'] = '4096M';
-}
+    // Memory limit options for large administration tasks.
+    $memoryoptions = [
+        '64M' => '64M',
+        '128M' => '128M',
+        '256M' => '256M',
+        '512M' => '512M',
+        '1024M' => '1024M',
+        '2048M' => '2048M',
+    ];
 
-$temp->add(new admin_setting_configselect('extramemorylimit', new lang_string('extramemorylimit', 'admin'),
-                                          new lang_string('configextramemorylimit', 'admin'), '512M',
-                                          $memoryoptions));
-$temp->add(new admin_setting_configtext('maxtimelimit', new lang_string('maxtimelimit', 'admin'),
+    // Allow larger memory usage for 64-bit sites only.
+    if (PHP_INT_SIZE === 8) {
+        $memoryoptions['3072M'] = '3072M';
+        $memoryoptions['4096M'] = '4096M';
+    }
+
+    $temp->add(new admin_setting_configselect('extramemorylimit', new lang_string('extramemorylimit', 'admin'),
+        new lang_string('configextramemorylimit', 'admin'), '512M', $memoryoptions));
+
+    $temp->add(new admin_setting_configtext('maxtimelimit', new lang_string('maxtimelimit', 'admin'),
         new lang_string('maxtimelimit_desc', 'admin'), 0, PARAM_INT));
 
-$temp->add(new admin_setting_configtext('curlcache', new lang_string('curlcache', 'admin'),
-                                        new lang_string('configcurlcache', 'admin'), 120, PARAM_INT));
+    $temp->add(new admin_setting_configtext('curlcache', new lang_string('curlcache', 'admin'),
+        new lang_string('configcurlcache', 'admin'), 120, PARAM_INT));
 
-$temp->add(new admin_setting_configtext('curltimeoutkbitrate', new lang_string('curltimeoutkbitrate', 'admin'),
-                                        new lang_string('curltimeoutkbitrate_help', 'admin'), 56, PARAM_INT));
+    $temp->add(new admin_setting_configtext('curltimeoutkbitrate', new lang_string('curltimeoutkbitrate', 'admin'),
+        new lang_string('curltimeoutkbitrate_help', 'admin'), 56, PARAM_INT));
 
-$ADMIN->add('server', $temp);
+    $ADMIN->add('server', $temp);
 
+    // Tasks.
+    $ADMIN->add('server', new admin_category('taskconfig', new lang_string('taskadmintitle', 'admin')));
 
-$ADMIN->add('server', new admin_category('taskconfig', new lang_string('taskadmintitle', 'admin')));
-$temp = new admin_settingpage('taskprocessing', new lang_string('taskprocessing','admin'));
-$temp->add(
-    new admin_setting_configtext(
-        'task_scheduled_concurrency_limit',
-        new lang_string('task_scheduled_concurrency_limit', 'admin'),
-        new lang_string('task_scheduled_concurrency_limit_desc', 'admin'),
-        3,
-        PARAM_INT
-    )
-);
+    // Task processing.
+    $temp = new admin_settingpage('taskprocessing', new lang_string('taskprocessing', 'admin'));
 
-$temp->add(
-    new admin_setting_configduration(
-        'task_scheduled_max_runtime',
-        new lang_string('task_scheduled_max_runtime', 'admin'),
-        new lang_string('task_scheduled_max_runtime_desc', 'admin'),
-        30 * MINSECS
-    )
-);
-
-$temp->add(
-    new admin_setting_configtext(
-        'task_adhoc_concurrency_limit',
-        new lang_string('task_adhoc_concurrency_limit', 'admin'),
-        new lang_string('task_adhoc_concurrency_limit_desc', 'admin'),
-        3,
-        PARAM_INT
-    )
-);
-
-$temp->add(
-    new admin_setting_configduration(
-        'task_adhoc_max_runtime',
-        new lang_string('task_adhoc_max_runtime', 'admin'),
-        new lang_string('task_adhoc_max_runtime_desc', 'admin'),
-        30 * MINSECS
-    )
-);
-$ADMIN->add('taskconfig', $temp);
-
-$temp = new admin_settingpage('tasklogging', new lang_string('tasklogging','admin'));
-$temp->add(
-    new admin_setting_configselect(
-        'task_logmode',
-        new lang_string('task_logmode', 'admin'),
-        new lang_string('task_logmode_desc', 'admin'),
-        \core\task\logmanager::MODE_ALL,
-        [
-            \core\task\logmanager::MODE_ALL => new lang_string('task_logmode_all', 'admin'),
-            \core\task\logmanager::MODE_FAILONLY => new lang_string('task_logmode_failonly', 'admin'),
-            \core\task\logmanager::MODE_NONE => new lang_string('task_logmode_none', 'admin'),
-        ]
-    )
-);
-$temp->add(
-    new admin_setting_configcheckbox(
-        'task_logtostdout',
-        new lang_string('task_logtostdout', 'admin'),
-        new lang_string('task_logtostdout_desc', 'admin'),
+    $setting = new admin_setting_configcheckbox(
+        'cron_enabled',
+        new lang_string('cron_enabled', 'admin'),
+        new lang_string('cron_enabled_desc', 'admin'),
         1
-    )
-);
+    );
+    $setting->set_updatedcallback('theme_reset_static_caches');
+    $temp->add($setting);
+
+    $temp->add(
+        new admin_setting_configtext(
+            'task_scheduled_concurrency_limit',
+            new lang_string('task_scheduled_concurrency_limit', 'admin'),
+            new lang_string('task_scheduled_concurrency_limit_desc', 'admin'),
+            3,
+            PARAM_INT
+        )
+    );
 
-if (\core\task\logmanager::uses_standard_settings()) {
     $temp->add(
         new admin_setting_configduration(
-            'task_logretention',
-            new \lang_string('task_logretention', 'admin'),
-            new \lang_string('task_logretention_desc', 'admin'),
-            28 * DAYSECS
+            'task_scheduled_max_runtime',
+            new lang_string('task_scheduled_max_runtime', 'admin'),
+            new lang_string('task_scheduled_max_runtime_desc', 'admin'),
+            30 * MINSECS
         )
     );
 
     $temp->add(
         new admin_setting_configtext(
-            'task_logretainruns',
-            new \lang_string('task_logretainruns', 'admin'),
-            new \lang_string('task_logretainruns_desc', 'admin'),
-            20,
+            'task_adhoc_concurrency_limit',
+            new lang_string('task_adhoc_concurrency_limit', 'admin'),
+            new lang_string('task_adhoc_concurrency_limit_desc', 'admin'),
+            3,
             PARAM_INT
         )
     );
-}
-$ADMIN->add('taskconfig', $temp);
 
-if (\core\task\logmanager::uses_standard_settings()) {
-    $ADMIN->add('taskconfig', new admin_externalpage(
-        'tasklogs',
-        new lang_string('tasklogs','admin'),
-        "{$CFG->wwwroot}/{$CFG->admin}/tasklogs.php"
-    ));
-}
+    $temp->add(
+        new admin_setting_configduration(
+            'task_adhoc_max_runtime',
+            new lang_string('task_adhoc_max_runtime', 'admin'),
+            new lang_string('task_adhoc_max_runtime_desc', 'admin'),
+            30 * MINSECS
+        )
+    );
+    $ADMIN->add('taskconfig', $temp);
 
-// E-mail settings.
-$ADMIN->add('server', new admin_category('email', new lang_string('categoryemail', 'admin')));
+    // Task log configuration.
+    $temp = new admin_settingpage('tasklogging', new lang_string('tasklogging', 'admin'));
+    $temp->add(
+        new admin_setting_configselect(
+            'task_logmode',
+            new lang_string('task_logmode', 'admin'),
+            new lang_string('task_logmode_desc', 'admin'),
+            \core\task\logmanager::MODE_ALL,
+            [
+                \core\task\logmanager::MODE_ALL => new lang_string('task_logmode_all', 'admin'),
+                \core\task\logmanager::MODE_FAILONLY => new lang_string('task_logmode_failonly', 'admin'),
+                \core\task\logmanager::MODE_NONE => new lang_string('task_logmode_none', 'admin'),
+            ]
+        )
+    );
+    $temp->add(
+        new admin_setting_configcheckbox(
+            'task_logtostdout',
+            new lang_string('task_logtostdout', 'admin'),
+            new lang_string('task_logtostdout_desc', 'admin'),
+            1
+        )
+    );
 
-$temp = new admin_settingpage('outgoingmailconfig', new lang_string('outgoingmailconfig', 'admin'));
+    if (\core\task\logmanager::uses_standard_settings()) {
+        $temp->add(
+            new admin_setting_configduration(
+                'task_logretention',
+                new \lang_string('task_logretention', 'admin'),
+                new \lang_string('task_logretention_desc', 'admin'),
+                28 * DAYSECS
+            )
+        );
 
-$temp->add(new admin_setting_heading('smtpheading', new lang_string('smtp', 'admin'),
-            new lang_string('smtpdetail', 'admin')));
-$temp->add(new admin_setting_configtext('smtphosts', new lang_string('smtphosts', 'admin'),
-            new lang_string('configsmtphosts', 'admin'), '', PARAM_RAW));
-$options = array('' => new lang_string('none', 'admin'), 'ssl' => 'SSL', 'tls' => 'TLS');
-$temp->add(new admin_setting_configselect('smtpsecure', new lang_string('smtpsecure', 'admin'),
-            new lang_string('configsmtpsecure', 'admin'), '', $options));
-$authtypeoptions = array('LOGIN' => 'LOGIN', 'PLAIN' => 'PLAIN', 'NTLM' => 'NTLM', 'CRAM-MD5' => 'CRAM-MD5');
-$temp->add(new admin_setting_configselect('smtpauthtype', new lang_string('smtpauthtype', 'admin'),
-            new lang_string('configsmtpauthtype', 'admin'), 'LOGIN', $authtypeoptions));
-$temp->add(new admin_setting_configtext('smtpuser', new lang_string('smtpuser', 'admin'),
-            new lang_string('configsmtpuser', 'admin'), '', PARAM_NOTAGS));
-$temp->add(new admin_setting_configpasswordunmask('smtppass', new lang_string('smtppass', 'admin'),
-            new lang_string('configsmtpuser', 'admin'), ''));
-$temp->add(new admin_setting_configtext('smtpmaxbulk', new lang_string('smtpmaxbulk', 'admin'),
-           new lang_string('configsmtpmaxbulk', 'admin'), 1, PARAM_INT));
-$temp->add(new admin_setting_heading('noreplydomainheading', new lang_string('noreplydomain', 'admin'),
+        $temp->add(
+            new admin_setting_configtext(
+                'task_logretainruns',
+                new \lang_string('task_logretainruns', 'admin'),
+                new \lang_string('task_logretainruns_desc', 'admin'),
+                20,
+                PARAM_INT
+            )
+        );
+    }
+    $ADMIN->add('taskconfig', $temp);
+
+    // Task logs.
+    if (\core\task\logmanager::uses_standard_settings()) {
+        $ADMIN->add('taskconfig', new admin_externalpage(
+            'tasklogs',
+            new lang_string('tasklogs', 'admin'),
+            "{$CFG->wwwroot}/{$CFG->admin}/tasklogs.php"
+        ));
+    }
+
+    // Email.
+    $ADMIN->add('server', new admin_category('email', new lang_string('categoryemail', 'admin')));
+
+    // Outgoing mail configuration.
+    $temp = new admin_settingpage('outgoingmailconfig', new lang_string('outgoingmailconfig', 'admin'));
+
+    $temp->add(new admin_setting_heading('smtpheading', new lang_string('smtp', 'admin'),
+        new lang_string('smtpdetail', 'admin')));
+
+    $temp->add(new admin_setting_configtext('smtphosts', new lang_string('smtphosts', 'admin'),
+        new lang_string('configsmtphosts', 'admin'), '', PARAM_RAW));
+
+    $options = [
+        '' => new lang_string('none', 'admin'),
+        'ssl' => 'SSL',
+        'tls' => 'TLS',
+    ];
+
+    $temp->add(new admin_setting_configselect('smtpsecure', new lang_string('smtpsecure', 'admin'),
+        new lang_string('configsmtpsecure', 'admin'), '', $options));
+
+    $authtypeoptions = [
+        'LOGIN' => 'LOGIN',
+        'PLAIN' => 'PLAIN',
+        'NTLM' => 'NTLM',
+        'CRAM-MD5' => 'CRAM-MD5',
+    ];
+
+    $temp->add(new admin_setting_configselect('smtpauthtype', new lang_string('smtpauthtype', 'admin'),
+        new lang_string('configsmtpauthtype', 'admin'), 'LOGIN', $authtypeoptions));
+
+    $temp->add(new admin_setting_configtext('smtpuser', new lang_string('smtpuser', 'admin'),
+        new lang_string('configsmtpuser', 'admin'), '', PARAM_NOTAGS));
+
+    $temp->add(new admin_setting_configpasswordunmask('smtppass', new lang_string('smtppass', 'admin'),
+        new lang_string('configsmtpuser', 'admin'), ''));
+
+    $temp->add(new admin_setting_configtext('smtpmaxbulk', new lang_string('smtpmaxbulk', 'admin'),
+        new lang_string('configsmtpmaxbulk', 'admin'), 1, PARAM_INT));
+
+    $temp->add(new admin_setting_heading('noreplydomainheading', new lang_string('noreplydomain', 'admin'),
         new lang_string('noreplydomaindetail', 'admin')));
-$temp->add(new admin_setting_configtext('noreplyaddress', new lang_string('noreplyaddress', 'admin'),
-          new lang_string('confignoreplyaddress', 'admin'), 'noreply@' . get_host_from_url($CFG->wwwroot), PARAM_EMAIL));
-$temp->add(new admin_setting_configtextarea('allowedemaildomains',
+
+    $temp->add(new admin_setting_configtext('noreplyaddress', new lang_string('noreplyaddress', 'admin'),
+        new lang_string('confignoreplyaddress', 'admin'), 'noreply@' . get_host_from_url($CFG->wwwroot), PARAM_EMAIL));
+
+    $temp->add(new admin_setting_configtextarea('allowedemaildomains',
         new lang_string('allowedemaildomains', 'admin'),
         new lang_string('configallowedemaildomains', 'admin'),
         ''));
-$url = new moodle_url('/admin/testoutgoingmailconf.php');
-$link = html_writer::link($url, get_string('testoutgoingmailconf', 'admin'));
-$temp->add(new admin_setting_heading('testoutgoinmailc', new lang_string('testoutgoingmailconf', 'admin'),
-        new lang_string('testoutgoingmaildetail', 'admin', $link)));
-$temp->add(new admin_setting_heading('emaildoesnotfit', new lang_string('doesnotfit', 'admin'),
-        new lang_string('doesnotfitdetail', 'admin')));
-$charsets = get_list_of_charsets();
-unset($charsets['UTF-8']); // Not needed here.
-$options = array();
-$options['0'] = 'UTF-8';
-$options = array_merge($options, $charsets);
-$temp->add(new admin_setting_configselect('sitemailcharset', new lang_string('sitemailcharset', 'admin'),
-          new lang_string('configsitemailcharset','admin'), '0', $options));
-$temp->add(new admin_setting_configcheckbox('allowusermailcharset', new lang_string('allowusermailcharset', 'admin'),
-          new lang_string('configallowusermailcharset', 'admin'), 0));
-$temp->add(new admin_setting_configcheckbox('allowattachments', new lang_string('allowattachments', 'admin'),
-          new lang_string('configallowattachments', 'admin'), 1));
-$options = array('LF' => 'LF', 'CRLF' => 'CRLF');
-$temp->add(new admin_setting_configselect('mailnewline', new lang_string('mailnewline', 'admin'),
-          new lang_string('configmailnewline', 'admin'), 'LF', $options));
 
-$choices = array(new lang_string('never', 'admin'),
-                 new lang_string('always', 'admin'),
-                 new lang_string('onlynoreply', 'admin'));
-$temp->add(new admin_setting_configselect('emailfromvia', new lang_string('emailfromvia', 'admin'),
-          new lang_string('configemailfromvia', 'admin'), 1, $choices));
+    $temp->add(new admin_setting_heading('divertallemailsheading', new lang_string('divertallemails', 'admin'),
+        new lang_string('divertallemailsdetail', 'admin')));
+    $temp->add(new admin_setting_configtext('divertallemailsto',
+        new lang_string('divertallemailsto', 'admin'),
+        new lang_string('divertallemailsto_desc', 'admin'),
+        ''));
+    $temp->add(new admin_setting_configtextarea('divertallemailsexcept',
+        new lang_string('divertallemailsexcept', 'admin'),
+        new lang_string('divertallemailsexcept_desc', 'admin'),
+        '', PARAM_RAW, '50', '4'));
+
+    $noreplyaddress = isset($CFG->noreplyaddress) ? $CFG->noreplyaddress : 'noreply@example.com';
+    $dkimdomain = substr(strrchr($noreplyaddress, "@"), 1);
+    $dkimselector = empty($CFG->emaildkimselector) ? '[selector]' : $CFG->emaildkimselector;
+    $pempath = "\$CFG->dataroot/dkim/{$dkimdomain}/{$dkimselector}.private";
+    $temp->add(new admin_setting_heading('emaildkim', new lang_string('emaildkim', 'admin'),
+        new lang_string('emaildkiminfo', 'admin', ['path' => $pempath, 'docs' => \get_docs_url('Mail_configuration#DKIM')])));
+    $temp->add(new admin_setting_configtext('emaildkimselector', new lang_string('emaildkimselector', 'admin'),
+        new lang_string('configemaildkimselector', 'admin'), '', PARAM_FILE));
+
+    $url = new moodle_url('/admin/testoutgoingmailconf.php');
+    $link = html_writer::link($url, get_string('testoutgoingmailconf', 'admin'));
+    $temp->add(new admin_setting_heading('testoutgoinmailc', new lang_string('testoutgoingmailconf', 'admin'),
+        new lang_string('testoutgoingmaildetail', 'admin', $link)));
+
+    $temp->add(new admin_setting_heading('emaildoesnotfit', new lang_string('doesnotfit', 'admin'),
+        new lang_string('doesnotfitdetail', 'admin')));
+
+    $charsets = get_list_of_charsets();
+    unset($charsets['UTF-8']);
+    $options = [
+        '0' => 'UTF-8',
+    ];
+    $options = array_merge($options, $charsets);
+    $temp->add(new admin_setting_configselect('sitemailcharset', new lang_string('sitemailcharset', 'admin'),
+        new lang_string('configsitemailcharset', 'admin'), '0', $options));
+
+    $temp->add(new admin_setting_configcheckbox('allowusermailcharset', new lang_string('allowusermailcharset', 'admin'),
+        new lang_string('configallowusermailcharset', 'admin'), 0));
+
+    $temp->add(new admin_setting_configcheckbox('allowattachments', new lang_string('allowattachments', 'admin'),
+        new lang_string('configallowattachments', 'admin'), 1));
+
+    $options = [
+        'LF' => 'LF',
+        'CRLF' => 'CRLF',
+    ];
+    $temp->add(new admin_setting_configselect('mailnewline', new lang_string('mailnewline', 'admin'),
+        new lang_string('configmailnewline', 'admin'), 'LF', $options));
+
+    $choices = [
+        new lang_string('never', 'admin'),
+        new lang_string('always', 'admin'),
+        new lang_string('onlynoreply', 'admin'),
+    ];
+    $temp->add(new admin_setting_configselect('emailfromvia', new lang_string('emailfromvia', 'admin'),
+        new lang_string('configemailfromvia', 'admin'), 1, $choices));
+
     $temp->add(new admin_setting_configtext('emailsubjectprefix', new lang_string('emailsubjectprefix', 'admin'),
         new lang_string('configemailsubjectprefix', 'admin'), '', PARAM_RAW));
 
-$ADMIN->add('email', $temp);
+    $temp->add(new admin_setting_configtextarea('emailheaders', new lang_string('emailheaders', 'admin'),
+        new lang_string('configemailheaders', 'admin'), '', PARAM_RAW, '50', '3'));
 
-// "update notifications" settingpage
-if (empty($CFG->disableupdatenotifications)) {
-    $temp = new admin_settingpage('updatenotifications', new lang_string('updatenotifications', 'core_admin'));
-    $temp->add(new admin_setting_configcheckbox('updateautocheck', new lang_string('updateautocheck', 'core_admin'),
-                                                new lang_string('updateautocheck_desc', 'core_admin'), 1));
-    $temp->add(new admin_setting_configselect('updateminmaturity', new lang_string('updateminmaturity', 'core_admin'),
-                                              new lang_string('updateminmaturity_desc', 'core_admin'), MATURITY_STABLE,
-                                              array(
-                                                  MATURITY_ALPHA  => new lang_string('maturity'.MATURITY_ALPHA, 'core_admin'),
-                                                  MATURITY_BETA   => new lang_string('maturity'.MATURITY_BETA, 'core_admin'),
-                                                  MATURITY_RC     => new lang_string('maturity'.MATURITY_RC, 'core_admin'),
-                                                  MATURITY_STABLE => new lang_string('maturity'.MATURITY_STABLE, 'core_admin'),
-                                              )));
-    $temp->add(new admin_setting_configcheckbox('updatenotifybuilds', new lang_string('updatenotifybuilds', 'core_admin'),
-                                                new lang_string('updatenotifybuilds_desc', 'core_admin'), 0));
-    $ADMIN->add('server', $temp);
+    $ADMIN->add('email', $temp);
+
+    // Update notifications.
+    if (empty($CFG->disableupdatenotifications)) {
+        $temp = new admin_settingpage('updatenotifications', new lang_string('updatenotifications', 'core_admin'));
+        $temp->add(new admin_setting_configcheckbox('updateautocheck', new lang_string('updateautocheck', 'core_admin'),
+            new lang_string('updateautocheck_desc', 'core_admin'), 1));
+        $temp->add(new admin_setting_configselect('updateminmaturity', new lang_string('updateminmaturity', 'core_admin'),
+            new lang_string('updateminmaturity_desc', 'core_admin'), MATURITY_STABLE,
+            [
+                MATURITY_ALPHA => new lang_string('maturity'.MATURITY_ALPHA, 'core_admin'),
+                MATURITY_BETA => new lang_string('maturity'.MATURITY_BETA, 'core_admin'),
+                MATURITY_RC => new lang_string('maturity'.MATURITY_RC, 'core_admin'),
+                MATURITY_STABLE => new lang_string('maturity'.MATURITY_STABLE, 'core_admin'),
+            ]
+        ));
+        $temp->add(new admin_setting_configcheckbox('updatenotifybuilds', new lang_string('updatenotifybuilds', 'core_admin'),
+            new lang_string('updatenotifybuilds_desc', 'core_admin'), 0));
+        $ADMIN->add('server', $temp);
+    }
 }
-
-} // end of speedup

admin/settings/top.php

@@ -39,6 +39,7 @@ $ADMIN->add('root', new admin_category('license', new lang_string('license')));
 $ADMIN->add('root', new admin_category('location', new lang_string('location','admin')));
 $ADMIN->add('root', new admin_category('language', new lang_string('language')));
 $ADMIN->add('root', new admin_category('messaging', new lang_string('messagingcategory', 'admin')));
+$ADMIN->add('root', new admin_category('payment', new lang_string('payments', 'payment')));
 $ADMIN->add('root', new admin_category('modules', new lang_string('plugins', 'admin')));
 $ADMIN->add('root', new admin_category('security', new lang_string('security','admin')));
 $ADMIN->add('root', new admin_category('appearance', new lang_string('appearance','admin')));

admin/settings/users.php

@@ -261,10 +261,28 @@ if ($hassiteconfig) {
     $temp->add($setting);
 
     // See {@link https://gdpr-info.eu/art-8-gdpr/}.
+    // See {@link https://www.betterinternetforkids.eu/web/portal/practice/awareness/detail?articleId=3017751}.
     $ageofdigitalconsentmap = implode(PHP_EOL, [
         '*, 16',
         'AT, 14',
+        'BE, 13',
+        'BG, 14',
+        'CY, 14',
+        'CZ, 15',
+        'DK, 13',
+        'EE, 13',
         'ES, 14',
+        'FI, 13',
+        'FR, 15',
+        'GB, 13',
+        'GR, 15',
+        'IT, 14',
+        'LT, 14',
+        'LV, 13',
+        'MT, 13',
+        'NO, 13',
+        'PT, 13',
+        'SE, 13',
         'US, 13'
     ]);
     $setting = new admin_setting_agedigitalconsentmap('agedigitalconsentmap',

admin/tasklogs.php

@@ -32,6 +32,7 @@ $result = optional_param('result', null, PARAM_INT);
 
 $pageurl = new \moodle_url('/admin/tasklogs.php');
 $pageurl->param('filter', $filter);
+$pageurl->param('result', $result);
 
 $PAGE->set_url($pageurl);
 $PAGE->set_context(context_system::instance());
@@ -66,7 +67,7 @@ echo $OUTPUT->header();
 // Output the search form.
 echo $OUTPUT->render_from_template('core_admin/tasklogs', (object) [
     'action' => $pageurl->out(),
-    'filter' => $filter,
+    'filter' => htmlentities($filter),
     'resultfilteroptions' => [
         (object) [
             'value' => -1,

admin/templates/local/settings/autocomplete.mustache

@@ -0,0 +1,87 @@
+{{!
+    This file is part of Moodle - http://moodle.org/
+
+    Moodle is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    Moodle is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+}}
+{{!
+    @template core_admin\local\settings\autocomplete
+
+    Admin setting auto complete.
+
+    Context variables required for this template:
+    * name - element name
+    * id - element id
+    * options - choices
+    * multiple - is multiple choices?
+    * manageurl - url to manage choices
+    * managetext - string to display manage url
+    * tags - Should we allow typing new entries to the field?
+    * ajax - Name of an AMD module to send/process ajax requests
+    * placeholder - Placeholder text for an empty list
+    * casesensitive - Whether the search has to be case-sensitive
+    * showsuggestions - Show suggestions by default - but this can be turned off
+    * noselectionstring - String that is shown when there are no selections
+
+
+    Example context (json):
+    {
+        "name": "name0",
+        "id": "id0",
+        "options": [{
+            "value": "1",
+            "text": "option 1",
+            "selected": true,
+            "disabled": false
+        }],
+        "multiple": true,
+        "manageurl": "",
+        "managetext": "",
+        "tags": false,
+        "ajax": "",
+        "placeholder": "",
+        "casesensitive": false,
+        "showsuggestions": true,
+        "noselectionstring": ""
+    }
+}}
+{{!
+    Setting autocomplete.
+}}
+
+<div class="form-select defaultsnext">
+    <input type="hidden" name="{{name}}[xxxxx]" value="_qf__force_multiselect_submission">
+    <select class="custom-select" name="{{name}}[]"
+            id="{{id}}"
+            {{#multiple}}multiple{{/multiple}}>
+        {{#options}}
+            <option value="{{value}}" {{#selected}}selected{{/selected}}>{{{text}}}</option>
+        {{/options}}
+    </select>
+    {{#manageurl}}
+        <a href="{{manageurl}}">{{managetext}}</a>
+    {{/manageurl}}
+</div>
+<br/>
+
+{{#js}}
+    require(['core/form-autocomplete'], function(module) {
+        module.enhance({{#quote}}#{{id}}{{/quote}},
+        {{tags}},
+        {{#quote}}{{ajax}}{{/quote}},
+        {{#quote}}{{placeholder}}{{/quote}},
+        {{casesensitive}},
+        {{showsuggestions}},
+        {{#quote}}{{noselectionstring}}{{/quote}});
+    });
+{{/js}}

admin/templates/setting_configcheckbox.mustache

@@ -25,6 +25,7 @@
     * value - yes value
     * id - element id
     * checked - boole
+    * readonly - bool
 
     Example context (json):
     {
@@ -32,10 +33,11 @@
         "no": "False",
         "value": "True",
         "id": "test0",
-        "checked": "checked"
+        "checked": "checked",
+        "readonly": false
     }
 }}
 <div class="form-checkbox defaultsnext">
     <input type="hidden" name="{{name}}" value="{{no}}">
-    <input type="checkbox" name="{{name}}" value="{{value}}" id="{{id}}" {{#checked}}checked{{/checked}}>
+    <input {{#readonly}}disabled{{/readonly}} type="checkbox" name="{{name}}" value="{{value}}" id="{{id}}" {{#checked}}checked{{/checked}}>
 </div>

admin/templates/setting_configcolourpicker.mustache

@@ -25,6 +25,7 @@
     * id - element id
     * value - element value
     * haspreviewconfig - show preview of selected color
+    * readonly - bool
 
     Example context (json):
     {
@@ -32,6 +33,7 @@
         "name": "name0",
         "id": "id0",
         "value": "#555655",
+        "readonly": false,
         "haspreviewconfig": false
     }
 }}
@@ -44,7 +46,7 @@
             {{>core/pix_icon}}
         {{/icon}}
     </div>
-    <input type="text" name="{{name}}" id="{{id}}" value="{{value}}" size="12" class="form-control text-ltr">
+    <input type="text" name="{{name}}" id="{{id}}" value="{{value}}" size="12" class="form-control text-ltr" {{#readonly}}disabled{{/readonly}}>
     {{#haspreviewconfig}}
         <input type="button" id="{{id}}_preview" value={{#quote}}{{#str}}preview{{/str}}{{/quote}} class="admin_colourpicker_preview">
     {{/haspreviewconfig}}

admin/templates/setting_configdirectory.mustache

@@ -33,7 +33,7 @@
         "name": "test",
         "value": "/my-super-secret-path/",
         "id": "test0",
-        "readonly": true,
+        "readonly": false,
         "showvalidity": true,
         "valid": false
     }

admin/templates/setting_configduration.mustache

@@ -23,6 +23,7 @@
     * name - form element name
     * options - list of options for units containing name, value, selected
     * value - yes
+    * readonly - bool
     * id - element id
 
     Example context (json):
@@ -30,6 +31,7 @@
         "name": "test",
         "value": "5",
         "id": "test0",
+        "readonly": false,
         "options": [ { "name": "Minutes", "value": "mins", "selected": true } ]
     }
 }}
@@ -38,9 +40,9 @@
 }}
 <div class="form-duration defaultsnext">
     <div class="form-inline">
-        <input type="text" size="5" id="{{id}}v" name="{{name}}[v]" value="{{value}}" class="form-control text-ltr">
+        <input type="text" size="5" id="{{id}}v" name="{{name}}[v]" value="{{value}}" class="form-control text-ltr" {{#readonly}}disabled{{/readonly}}>
         <label class="sr-only" for="{{id}}u">{{#str}}durationunits, admin{{/str}}</label>
-        <select id="{{id}}u" name="{{name}}[u]" class="form-control custom-select">
+        <select id="{{id}}u" name="{{name}}[u]" class="form-control custom-select" {{#readonly}}disabled{{/readonly}}>
             {{#options}}
                 <option value="{{value}}" {{#selected}}selected{{/selected}}>{{name}}</option>
             {{/options}}

admin/templates/setting_configexecutable.mustache

@@ -33,7 +33,7 @@
         "name": "test",
         "value": "/usr/bin/cowsay",
         "id": "test0",
-        "readonly": true,
+        "readonly": false,
         "showvalidity": true,
         "valid": false
     }

admin/templates/setting_configfile.mustache

@@ -26,6 +26,7 @@
     * readonly - Make the field readonly
     * value - value
     * showvalidity - Show a green check if the path is readable
+    * readonly - bool
     * valid - True if the path is readable
 
     Example context (json):
@@ -33,8 +34,9 @@
         "name": "test",
         "value": "/my-super-secret-path/file",
         "id": "test0",
-        "readonly": true,
+        "readonly": false,
         "showvalidity": true,
+        "readonly": false,
         "valid": false
     }
 }}

admin/templates/setting_configfilesize.mustache

@@ -24,12 +24,14 @@
     * options - list of options for units containing name, value, selected
     * value - yes
     * id - element id
+    * readonly - bool
 
     Example context (json):
     {
         "name": "test",
         "value": "5",
         "id": "test0",
+        "readonly": false,
         "options": [ { "name": "KB", "value": "1024", "selected": true } ]
     }
 }}
@@ -38,9 +40,9 @@
 }}
 <div class="form-filesize defaultsnext">
     <div class="form-inline">
-        <input type="text" size="5" id="{{id}}v" name="{{name}}[v]" value="{{value}}" class="form-control text-ltr">
+        <input type="text" size="5" id="{{id}}v" name="{{name}}[v]" value="{{value}}" class="form-control text-ltr" {{#readonly}}disabled{{/readonly}}>
         <label class="sr-only" for="{{id}}u">{{#str}}filesizeunits, admin{{/str}}</label>
-        <select id="{{id}}u" name="{{name}}[u]" class="form-control custom-select">
+        <select id="{{id}}u" name="{{name}}[u]" class="form-control custom-select" {{#readonly}}disabled{{/readonly}}>
             {{#options}}
                 <option value="{{value}}" {{#selected}}selected{{/selected}}>{{name}}</option>
             {{/options}}

admin/templates/setting_configmultiselect.mustache

@@ -24,11 +24,13 @@
     * id - element id
     * size - element size
     * options - list of options containing name, value, selected
+    * readonly - bool
 
     Example context (json):
     {
         "name": "test",
         "id": "test0",
+        "readonly": false,
         "size": "3",
         "options": [ { "name": "Option 1", "value": "V", "selected": true },
                      { "name": "Option 2", "value": "V", "selected": true } ]
@@ -39,7 +41,7 @@
 }}
 <div class="form-select">
     <input type="hidden" name="{{name}}[xxxxx]" value="1">
-    <select id="{{id}}" name="{{name}}[]" size="{{size}}" class="form-control" multiple>
+    <select {{#readonly}}disabled{{/readonly}} id="{{id}}" name="{{name}}[]" size="{{size}}" class="form-control" multiple>
         {{#options}}
             <option value="{{value}}" {{#selected}}selected{{/selected}}>{{name}}</option>
         {{/options}}

admin/templates/setting_configmultiselect_optgroup.mustache

@@ -25,11 +25,13 @@
     * size - element size
     * options - list of options not grouped
     * optgroups - list of options grouped containing the group label and for each option: name, value, selected
+    * readonly - bool
 
     Example context (json):
     {
         "name": "test",
         "id": "test0",
+        "readonly": false,
         "size": "3",
         "options": [
             { "name": "Option 1", "value": "V", "selected": false },
@@ -58,7 +60,7 @@
 }}
 <div class="form-select">
     <input type="hidden" name="{{name}}[xxxxx]" value="1">
-    <select id="{{id}}" name="{{name}}[]" size="{{size}}" class="form-control" multiple>
+    <select {{#readonly}}disabled{{/readonly}} id="{{id}}" name="{{name}}[]" size="{{size}}" class="form-control" multiple>
     {{#options}}
         <option value="{{value}}" {{#selected}}selected{{/selected}}>{{name}}</option>
     {{/options}}

admin/templates/setting_configpasswordunmask.mustache

@@ -24,7 +24,7 @@
     * size - form element size
     * value - form element value
     * id - element id
-    * forced - has value been defined in config.php
+    * readonly - has value been defined in config.php
 
     Example context (json):
     {
@@ -32,10 +32,10 @@
         "id": "test0",
         "size": "8",
         "value": "secret",
-        "forced": false
+        "readonly": false
     }
 }}
-{{#forced}}
+{{#readonly}}
     <div class="form-password">
         <input type="text"
                name = "{{ name }}"
@@ -46,8 +46,8 @@
                disabled
         >
     </div>
-{{/forced}}
-{{^forced}}
+{{/readonly}}
+{{^readonly}}
 <div class="form-password">
     <span data-passwordunmask="wrapper" data-passwordunmaskid="{{ id }}">
         <span data-passwordunmask="editor">
@@ -76,4 +76,4 @@ require(['core_form/passwordunmask'], function(PasswordUnmask) {
     new PasswordUnmask("{{ id }}");
 });
 {{/js}}
-{{/forced}}
+{{/readonly}}

admin/templates/setting_configselect.mustache

@@ -23,11 +23,13 @@
     * name - form element name
     * id - element id
     * options - list of options containing name, value, selected
+    * readonly - bool
 
     Example context (json):
     {
         "name": "test",
         "id": "test0",
+        "readonly": false,
         "options": [
             { "name": "Option 1", "value": "V", "selected": true },
             { "name": "Option 2", "value": "V", "selected": true }
@@ -38,7 +40,7 @@
     Setting configselect.
 }}
 <div class="form-select defaultsnext">
-    <select id="{{id}}" name="{{name}}" class="custom-select">
+    <select {{#readonly}}disabled{{/readonly}} id="{{id}}" name="{{name}}" class="custom-select">
         {{#options}}
             <option value="{{value}}" {{#selected}}selected{{/selected}}>{{name}}</option>
         {{/options}}

admin/templates/setting_configselect_optgroup.mustache

@@ -22,6 +22,7 @@
     Context variables required for this template:
     * name - form element name
     * id - element id
+    * readonly - bool
     * options - list of options (not grouped)
     * optgroups - list of options grouped containing the group label and for each option: name, value, selected
 
@@ -29,6 +30,7 @@
     {
         "name": "test",
         "id": "test0",
+        "readonly": false,
         "options": [
             { "name": "Option 1", "value": "V", "selected": false },
             { "name": "Option 2", "value": "V", "selected": false }
@@ -55,7 +57,7 @@
     Setting configselect with optgroup support.
 }}
 <div class="form-select defaultsnext">
-    <select id="{{id}}" name="{{name}}" class="custom-select">
+    <select {{#readonly}}disabled{{/readonly}} id="{{id}}" name="{{name}}" class="custom-select">
         {{#options}}
             <option value="{{value}}" {{#selected}}selected{{/selected}}>{{name}}</option>
         {{/options}}

admin/templates/setting_configtext.mustache

@@ -26,6 +26,7 @@
     * size - element size
     * forceltr - always display as ltr
     * attributes - list of additional attributes containing name, value
+    * readonly - bool
 
     Example context (json):
     {
@@ -34,6 +35,7 @@
         "value": "A tall, dark stranger will have more fun than you.",
         "size": "21",
         "forceltr": false,
+        "readonly": false,
         "attributes": [ { "name": "readonly", "value": "readonly" } ]
     }
 }}
@@ -41,5 +43,5 @@
     Setting configtext.
 }}
 <div class="form-text defaultsnext">
-    <input type="text" name="{{name}}" value="{{value}}" size="{{size}}" id="{{id}}" class="form-control {{#forceltr}}text-ltr{{/forceltr}}">
+    <input type="text" name="{{name}}" value="{{value}}" size="{{size}}" id="{{id}}" class="form-control {{#forceltr}}text-ltr{{/forceltr}}" {{#readonly}}disabled{{/readonly}}>
 </div>

admin/templates/setting_configtextarea.mustache

@@ -33,6 +33,7 @@
         "cols": "30",
         "rows": "3",
         "value": "Excellent day for putting Slinkies on an escalator.",
+        "readonly": false,
         "id": "test0"
     }
 }}
@@ -40,5 +41,5 @@
     Setting configtextarea.
 }}
 <div class="form-textarea">
-    <textarea rows="{{rows}}" cols="{{cols}}" id="{{id}}" name="{{name}}" spellcheck="true" class="form-control {{#forceltr}}text-ltr{{/forceltr}}">{{value}}</textarea>
+    <textarea {{#readonly}}disabled{{/readonly}} rows="{{rows}}" cols="{{cols}}" id="{{id}}" name="{{name}}" spellcheck="true" class="form-control {{#forceltr}}text-ltr{{/forceltr}}">{{value}}</textarea>
 </div>

admin/templates/setting_configtime.mustache

@@ -24,11 +24,13 @@
     * id - element id
     * hours - list of valid hour options containing name, value, selected
     * minutes - list of valid minute options containing name, value, selected
+    * readonly - bool
 
     Example context (json):
     {
         "name": "test",
         "id": "test0",
+        "readonly": false,
         "minutes": [
             { "name": "00", "value": "0", "selected": true },
             { "name": "01", "value": "1", "selected": false }
@@ -45,13 +47,13 @@
 <div class="form-time defaultsnext">
     <div class="form-inline text-ltr">
         <label class="sr-only" for="{{id}}h">{{#str}}hours{{/str}}</label>
-        <select id="{{id}}h" name="{{name}}[h]" class="custom-select">
+        <select id="{{id}}h" name="{{name}}[h]" class="custom-select" {{#readonly}}disabled{{/readonly}}>
             {{#hours}}
                 <option value="{{value}}" {{#selected}}selected{{/selected}}>{{name}}</option>
             {{/hours}}
         </select>:
         <label class="sr-only" for="{{id}}m">{{#str}}minutes{{/str}}</label>
-        <select id="{{id}}m" name="{{name}}[m]" class="custom-select">
+        <select id="{{id}}m" name="{{name}}[m]" class="custom-select" {{#readonly}}disabled{{/readonly}}>
             {{#minutes}}
                 <option value="{{value}}" {{#selected}}selected{{/selected}}>{{name}}</option>
             {{/minutes}}

admin/tests/behat/behat_admin.php

@@ -56,7 +56,7 @@ class behat_admin extends behat_base {
             $this->execute('behat_navigation::i_select_from_flat_navigation_drawer', [get_string('administrationsite')]);
 
             // Search by label.
-            $this->execute('behat_forms::i_set_the_field_to', [get_string('query', 'admin'), $label]);
+            $this->execute('behat_forms::i_set_the_field_to', [get_string('search'), $label]);
             $this->execute("behat_forms::press_button", get_string('search', 'admin'));
 
             // Admin settings does not use the same DOM structure than other moodle forms

admin/tests/behat/invalid_allcountrycodes.feature

@@ -0,0 +1,29 @@
+@core @core_admin
+Feature: Administrator is warned and when trying to set invalid allcountrycodes value.
+  In order to avoid misconfiguration of the country selector fields
+  As an admin
+  I want to be warned when I try to set an invalid country code in the allcountrycodes field
+
+  Scenario: Attempting to set allcountrycodes field with valid country codes
+    Given I log in as "admin"
+    And I navigate to "Location > Location settings" in site administration
+    When I set the following administration settings values:
+      | All country codes | CZ,BE,GB,ES |
+    Then I should not see "Invalid country code"
+
+  Scenario: Attempting to set allcountrycodes field with invalid country code
+    Given I log in as "admin"
+    And I navigate to "Location > Location settings" in site administration
+    When I set the following administration settings values:
+      | All country codes | CZ,BE,FOOBAR,GB,ES |
+    Then I should see "Invalid country code: FOOBAR"
+
+  Scenario: Attempting to unset allcountrycodes field
+    Given I log in as "admin"
+    And I navigate to "Location > Location settings" in site administration
+    And I set the following administration settings values:
+      | All country codes | CZ,BE,GB,ES |
+    And I navigate to "Location > Location settings" in site administration
+    When I set the following administration settings values:
+      | All country codes | |
+    Then I should not see "Invalid country code"

admin/tests/behat/language_settings.feature

@@ -0,0 +1,34 @@
+@core @core_admin
+Feature: Configure language settings for the site
+  In order to configure language settings for the site
+  As an admin
+  I want to set language settings relevant to my site users
+
+  Scenario: Set languages on language menu
+    Given I log in as "admin"
+    And I navigate to "Language > Language settings" in site administration
+    When I set the field "Languages on language menu" to "en"
+    And I press "Save changes"
+    Then I should not see "Invalid language code"
+
+  Scenario: Reset languages on language menu
+    Given I log in as "admin"
+    And I navigate to "Language > Language settings" in site administration
+    When I set the field "Languages on language menu" to ""
+    And I press "Save changes"
+    Then I should not see "Invalid language code"
+
+  Scenario Outline: Set languages on language menu with invalid language
+    Given I log in as "admin"
+    And I navigate to "Language > Language settings" in site administration
+    When I set the field "Languages on language menu" to "<fieldvalue>"
+    And I press "Save changes"
+    Then I should see "Invalid language code: <invalidlang>"
+    Examples:
+      | fieldvalue | invalidlang |
+      | xx         | xx          |
+      | xx\|Bad    | xx          |
+      | en,qq      | qq          |
+      | en,qq\|Bad | qq          |
+      | en$$       | en$$        |
+      | en$$\|Bad  | en$$        |

admin/tool/analytics/classes/output/models_list.php

@@ -64,7 +64,7 @@ class models_list implements \renderable, \templatable {
         $data = new \stdClass();
 
         $newmodelmenu = new \action_menu();
-        $newmodelmenu->set_menu_trigger(get_string('newmodel', 'tool_analytics'), 'btn btn-default');
+        $newmodelmenu->set_menu_trigger(get_string('newmodel', 'tool_analytics'), 'btn btn-secondary');
         $newmodelmenu->set_alignment(\action_menu::TL, \action_menu::BL);
 
         $newmodelmenu->add(new \action_menu_link(

admin/tool/analytics/templates/evaluation_options.mustache

@@ -57,10 +57,10 @@
 {{/trainedexternally}}
 
 {{! Hidden by default if #trainedexternally as the default option is trainedmodel in this case.}}
-<div id="id-evaluation-timesplitting-container" class="m-t-1 {{#trainedexternally}}hidden{{/trainedexternally}}">
+<div id="id-evaluation-timesplitting-container" class="mt-3 {{#trainedexternally}}hidden{{/trainedexternally}}">
     {{#str}} selecttimesplittingforevaluation, tool_analytics {{/str}}
     <div>
-        <select id="id-evaluation-timesplitting" name="timesplitting" class="custom-select m-t-1">
+        <select id="id-evaluation-timesplitting" name="timesplitting" class="custom-select mt-3">
             {{#timesplittingmethods}}
                 <option value="{{id}}">{{text}}</option>
             {{/timesplittingmethods}}

admin/tool/analytics/templates/export_options.mustache

@@ -39,7 +39,7 @@
     <input class="custom-control-input" type="radio" name="exportoption" id="id-mode-exportmodel" value="exportmodel" checked>
     <label class="custom-control-label" for="id-mode-exportmodel">{{#str}} exportmodel, tool_analytics {{/str}}</label>
 </div>
-<div class="custom-control custom-checkbox m-l-2" id="id-includeweights-container">
+<div class="custom-control custom-checkbox ml-5" id="id-includeweights-container">
   <input class="custom-control-input" type="checkbox" id="id-includeweights" value="1" checked>
   <label class="custom-control-label" for="id-includeweights">{{#str}} exportincludeweights, tool_analytics {{/str}}</label>
 </div>

admin/tool/analytics/tests/external_test.php

@@ -66,8 +66,6 @@ class tool_analytics_external_testcase extends externallib_advanced_testcase {
 
     /**
      * test_potential_contexts description
-     *
-     * @expectedException required_capability_exception
      */
     public function test_potential_contexts_no_manager() {
         $this->resetAfterTest();
@@ -75,6 +73,7 @@ class tool_analytics_external_testcase extends externallib_advanced_testcase {
         $user = $this->getDataGenerator()->create_user();
         $this->setUser($user);
 
+        $this->expectException(required_capability_exception::class);
         $this->assertCount(2, \tool_analytics\external::potential_contexts());
     }
 }

admin/tool/analytics/version.php

@@ -24,6 +24,6 @@
 
 defined('MOODLE_INTERNAL') || die();
 
-$plugin->version   = 2020061500; // The current plugin version (Date: YYYYMMDDXX).
-$plugin->requires  = 2020060900; // Requires this Moodle version.
+$plugin->version   = 2020110900; // The current plugin version (Date: YYYYMMDDXX).
+$plugin->requires  = 2020110300; // Requires this Moodle version.
 $plugin->component = 'tool_analytics'; // Full name of the plugin (used for diagnostics).

admin/tool/availabilityconditions/version.php

@@ -24,6 +24,6 @@
 
 defined('MOODLE_INTERNAL') || die();
 
-$plugin->version = 2020061500;
-$plugin->requires = 2020060900;
+$plugin->version = 2020110900;
+$plugin->requires = 2020110300;
 $plugin->component = 'tool_availabilityconditions';

admin/tool/behat/cli/init.php

@@ -49,6 +49,10 @@ list($options, $unrecognized) = cli_get_params(
         'torun'    => 0,
         'optimize-runs' => '',
         'add-core-features-to-theme' => false,
+        'axe'      => false,
+        'disable-composer' => false,
+        'composer-upgrade' => true,
+        'composer-self-update' => true,
     ),
     array(
         'j' => 'parallel',
@@ -64,18 +68,36 @@ $help = "
 Behat utilities to initialise behat tests
 
 Usage:
-  php init.php [--parallel=value [--maxruns=value] [--fromrun=value --torun=value]] [--help]
+  php init.php      [--parallel=value [--maxruns=value] [--fromrun=value --torun=value]]
+                    [--axe] [-o | --optimize-runs] [-a | --add-core-features-to-theme]
+                    [--no-composer-self-update] [--no-composer-upgrade]
+                    [--disable-composer]
+                    [--help]
 
 Options:
--j, --parallel   Number of parallel behat run to initialise
--m, --maxruns    Max parallel processes to be executed at one time.
---fromrun        Execute run starting from (Used for parallel runs on different vms)
---torun          Execute run till (Used for parallel runs on different vms)
+-j, --parallel      Number of parallel behat run to initialise
+-m, --maxruns       Max parallel processes to be executed at one time
+--fromrun           Execute run starting from (Used for parallel runs on different vms)
+--torun             Execute run till (Used for parallel runs on different vms)
+--axe               Include axe accessibility tests
 
--o, --optimize-runs Split features with specified tags in all parallel runs.
--a, --add-core-features-to-theme Add all core features to specified theme's
+-o, --optimize-runs
+                    Split features with specified tags in all parallel runs.
 
--h, --help     Print out this help
+-a, --add-core-features-to-theme
+                    Add all core features to specified theme's
+
+--no-composer-self-update
+                    Prevent upgrade of the composer utility using its self-update command
+
+--no-composer-upgrade
+                    Prevent update development dependencies using composer
+
+--disable-composer
+                    A shortcut to disable composer self-update and dependency update
+                    Note: Installation of composer and/or dependencies will still happen as required
+
+-h, --help          Print out this help
 
 Example from Moodle root directory:
 \$ php admin/tool/behat/cli/init.php --parallel=2
@@ -102,7 +124,10 @@ if ($options['parallel'] && $options['parallel'] > 1) {
     }
 } else {
     // Only sanitize options for single run.
-    $cmdoptionsforsinglerun = array('add-core-features-to-theme');
+    $cmdoptionsforsinglerun = [
+        'add-core-features-to-theme',
+        'axe',
+    ];
 
     foreach ($cmdoptionsforsinglerun as $option) {
         if (!empty($options[$option])) {
@@ -115,8 +140,15 @@ if ($options['parallel'] && $options['parallel'] > 1) {
 $cwd = getcwd();
 $output = null;
 
-// If behat dependencies not downloaded then do it first, else symfony/process can't be used.
-testing_update_composer_dependencies();
+if ($options['disable-composer']) {
+    // Disable self-update and upgrade easily.
+    // Note: Installation will still occur regardless of this setting.
+    $options['composer-self-update'] = false;
+    $options['composer-upgrade'] = false;
+}
+
+// Install and update composer and dependencies as required.
+testing_update_composer_dependencies($options['composer-self-update'], $options['composer-upgrade']);
 
 // Check whether the behat test environment needs to be updated.
 chdir(__DIR__);

admin/tool/behat/cli/util.php

@@ -54,6 +54,7 @@ list($options, $unrecognized) = cli_get_params(
         'torun'       => 0,
         'optimize-runs' => '',
         'add-core-features-to-theme' => false,
+        'axe'         => false,
     ),
     array(
         'h' => 'help',
@@ -69,7 +70,7 @@ $help = "
 Behat utilities to manage the test environment
 
 Usage:
-  php util.php [--install|--drop|--enable|--disable|--diag|--updatesteps|--help] [--parallel=value [--maxruns=value]]
+  php util.php [--install|--drop|--enable|--disable|--diag|--updatesteps|--axe|--help] [--parallel=value [--maxruns=value]]
 
 Options:
 --install      Installs the test environment for acceptance tests
@@ -78,6 +79,7 @@ Options:
 --disable      Disables test environment
 --diag         Get behat test environment status code
 --updatesteps  Update feature step file.
+--axe          Include axe accessibility tests
 
 -j, --parallel Number of parallel behat run operation
 -m, --maxruns Max parallel processes to be executed at one time.

admin/tool/behat/cli/util_single_run.php

@@ -49,6 +49,7 @@ list($options, $unrecognized) = cli_get_params(
         'updatesteps' => false,
         'optimize-runs' => '',
         'add-core-features-to-theme' => false,
+        'axe'         => false,
     ),
     array(
         'h' => 'help',
@@ -75,6 +76,7 @@ Options:
 --disable        Disables test environment
 --diag           Get behat test environment status code
 --updatesteps    Update feature step file.
+--axe            Include axe accessibility tests
 
 -o, --optimize-runs Split features with specified tags in all parallel runs.
 -a, --add-core-features-to-theme Add all core features to specified theme's
@@ -164,6 +166,8 @@ if ($options['install']) {
         mtrace("Acceptance tests site installed");
     }
 
+    // Note: Do not build the themes here. This is done during the 'enable' stage.
+
 } else if ($options['drop']) {
     // Ensure no tests are running.
     test_lock::acquire('behat');
@@ -179,8 +183,18 @@ if ($options['install']) {
         behat_config_manager::set_behat_run_config_value('behatsiteenabled', 1);
     }
 
+    // Define whether to run Behat with axe tests.
+    behat_config_manager::set_behat_run_config_value('axe', $options['axe']);
+
     // Enable test mode.
+    $timestart = microtime(true);
+    mtrace('Creating Behat configuration ...', '');
     behat_util::start_test_mode($options['add-core-features-to-theme'], $options['optimize-runs'], $parallel, $run);
+    mtrace(' done in ' . round(microtime(true) - $timestart, 2) . ' seconds.');
+
+    // Themes are only built in the 'enable' command.
+    behat_util::build_themes(true);
+    mtrace("Testing environment themes built");
 
     // This is only displayed once for parallel install.
     if (empty($run)) {

admin/tool/behat/tests/behat/edit_permissions.feature

@@ -6,14 +6,18 @@ Feature: Edit capabilities
 
   Background:
     Given the following "users" exist:
-      | username | firstname | lastname | email |
-      | teacher1 | Teacher | 1 | teacher1@example.com |
+      | username | firstname | lastname  |
+      | teacher1 | Teacher   | 1         |
+      | tutor    | Teaching  | Assistant |
+      | student  | Student   | One       |
     And the following "courses" exist:
-      | fullname | shortname | category |
-      | Course 1 | C1 | 0 |
+      | fullname | shortname |
+      | Course 1 | C1        |
     And the following "course enrolments" exist:
-      | user | course | role |
-      | teacher1 | C1 | editingteacher |
+      | user     | course | role           |
+      | teacher1 | C1     | editingteacher |
+      | tutor    | C1     | teacher        |
+      | student  | C1     | student        |
 
   Scenario: Default system capabilities modification
     Given I log in as "admin"
@@ -60,3 +64,25 @@ Feature: Edit capabilities
     Then "mod/forum:deleteanypost" capability has "Prohibit" permission
     And "mod/forum:editanypost" capability has "Prevent" permission
     And "mod/forum:addquestion" capability has "Allow" permission
+
+  @javascript
+  Scenario: Edit permissions escapes role names correctly
+    When I am on the "C1" "Course" page logged in as "admin"
+    And I navigate to "Edit settings" in current page administration
+    And I set the following fields to these values:
+      | Your word for 'Teacher'             | Teacher >= editing  |
+      | Your word for 'Non-editing teacher' | Teacher < "editing" |
+      | Your word for 'Student'             | Studier & 'learner' |
+    And I press "Save and display"
+    And I navigate to course participants
+    Then I should see "Teacher >= editing (Teacher)" in the "Teacher 1" "table_row"
+    And I should see "Teacher < \"editing\" (Non-editing teacher)" in the "Teaching Assistant" "table_row"
+    And I should see "Studier & 'learner' (Student)" in the "Student One" "table_row"
+    And I navigate to "Users > Permissions" in current page administration
+    And I should see "Teacher >= editing" in the "mod/forum:replypost" "table_row"
+    And I should see "Teacher < \"editing\"" in the "mod/forum:replypost" "table_row"
+    And I should see "Studier & 'learner'" in the "mod/forum:replypost" "table_row"
+    And I follow "Prohibit"
+    And "Teacher >= editing" "button" in the "Prohibit role" "dialogue" should be visible
+    And "Teacher < \"editing\"" "button" in the "Prohibit role" "dialogue" should be visible
+    And "Studier & 'learner'" "button" in the "Prohibit role" "dialogue" should be visible

admin/tool/behat/tests/behat/inplaceeditable.feature

@@ -0,0 +1,30 @@
+@tool_behat
+Feature: Verify that the inplace editable field works as expected
+  In order to use behat step definitions
+  As a test write
+  I need to ensure that the inplace editable works in forms
+
+  Background:
+    Given the following "course" exists:
+      | fullname  | Course 1 |
+      | shortname | C1       |
+    And the following "activities" exist:
+      | activity | course | name                | idnumber |
+      | forum    | C1     | My first forum      | forum1   |
+      | assign   | C1     | My first assignment | assign1  |
+      | quiz     | C1     | My first quiz       | quiz1    |
+    And I log in as "admin"
+    And I am on "Course 1" course homepage with editing mode on
+
+  @javascript
+  Scenario: Using an inplace editable updates the name of an activity
+    When I set the field "Edit title" in the "My first assignment" "activity" to "Coursework submission"
+    Then I should see "Coursework submission"
+    And I should not see "My first assignment"
+    But I should see "My first forum"
+    And I should see "My first quiz"
+    And I set the field "Edit title" in the "Coursework submission" "activity" to "My first assignment"
+    And I should not see "Coursework submission"
+    But I should see "My first assignment"
+    And I should see "My first forum"
+    And I should see "My first quiz"

admin/tool/behat/tests/behat/keyboard.feature

@@ -0,0 +1,53 @@
+@tool_behat
+Feature: Verify that keyboard steps work as expected
+  In order to use behat step definitions
+  As a test writer
+  I need to verify that the keyboard steps work as expected
+
+  @javascript
+  Scenario: Typing keys into a field causes them to be input
+    Given the following "users" exist:
+      | username | email                        | firstname | lastname | password    |
+      | saffronr | saffron.rutledge@example.com | Saffron   | Rutledge | flowerpower |
+    Given I click on "Log in" "link"
+    And I click on "Username" "field"
+    When I type "saffronr"
+    And I press the tab key
+    And I type "flowerpower"
+    And I press enter
+    Then I should see "You are logged in as Saffron Rutledge"
+
+  @javascript
+  Scenario: Using tab changes focus to the next or previous field
+    Given I click on "Log in" "link"
+    And I click on "Username" "field"
+    And the focused element is "Username" "field"
+    When I press the tab key
+    Then the focused element is "Password" "field"
+
+    And I press the shift tab key
+    And the focused element is "Username" "field"
+
+#  TODO: Uncomment the following when MDL-66979 is integrated.
+#  @javascript
+#  Scenario: Using the arrow keys allows me to navigate through menus
+#    Given the following "users" exist:
+#      | username | email                        | firstname | lastname |
+#      | saffronr | saffron.rutledge@example.com | Saffron   | Rutledge |
+#    And I log in as "saffronr"
+#    And I click on "Saffron Rutledge" "link" in the ".usermenu" "css_element"
+#    When I press the up key
+#    Then the focused element is "Log out" "link"
+
+  @javascript
+  Scenario: The escape key can be used to close a dialogue
+    Given the following "course" exists:
+     | fullname  | C1|
+     | shortname | C1 |
+    And I log in as "admin"
+    And I am on "C1" course homepage
+    And I navigate to course participants
+    And I press "Enrol users"
+    And "Enrol users" "dialogue" should be visible
+    When I press the escape key
+    Then "Enrol users" "dialogue" should not be visible

admin/tool/behat/tests/manager_util_test.php

@@ -87,7 +87,7 @@ class tool_behat_manager_util_testcase extends advanced_testcase {
     /**
      * Setup test.
      */
-    public function setup() {
+    public function setUp(): void {
         global $CFG;
 
         $this->resetAfterTest();
@@ -165,7 +165,7 @@ class tool_behat_manager_util_testcase extends advanced_testcase {
             $this->assertCount(count($paths), $suites[$themename]['paths']);
 
             foreach ($paths as $key => $feature) {
-                $this->assertContains($feature, $suites[$themename]['paths'][$key]);
+                $this->assertStringContainsString($feature, $suites[$themename]['paths'][$key]);
             }
         }
 
@@ -219,7 +219,7 @@ class tool_behat_manager_util_testcase extends advanced_testcase {
             $this->assertCount(count($paths), $suites[$themename]['paths']);
 
             foreach ($paths as $key => $feature) {
-                $this->assertContains($feature, $suites[$themename]['paths'][$key]);
+                $this->assertStringContainsString($feature, $suites[$themename]['paths'][$key]);
             }
         }
 
@@ -264,7 +264,7 @@ class tool_behat_manager_util_testcase extends advanced_testcase {
             $this->assertCount(count($paths), $suites[$themename]['paths']);
 
             foreach ($paths as $key => $feature) {
-                $this->assertContains($feature, $suites[$themename]['paths'][$key]);
+                $this->assertStringContainsString($feature, $suites[$themename]['paths'][$key]);
             }
         }
 
@@ -295,7 +295,7 @@ class tool_behat_manager_util_testcase extends advanced_testcase {
             $this->assertCount(count($paths), $suites[$themename]['paths']);
 
             foreach ($paths as $key => $feature) {
-                $this->assertContains($feature, $suites[$themename]['paths'][$key]);
+                $this->assertStringContainsString($feature, $suites[$themename]['paths'][$key]);
             }
         }
         // Check contexts.
@@ -324,7 +324,7 @@ class tool_behat_manager_util_testcase extends advanced_testcase {
             $this->assertCount(count($paths), $suites[$themename]['paths']);
 
             foreach ($paths as $key => $feature) {
-                $this->assertContains($feature, $suites[$themename]['paths'][$key]);
+                $this->assertStringContainsString($feature, $suites[$themename]['paths'][$key]);
             }
         }
         // Check contexts.
@@ -368,7 +368,7 @@ class tool_behat_manager_util_testcase extends advanced_testcase {
             $this->assertCount(count($paths), $suites[$themename]['paths']);
 
             foreach ($paths as $key => $feature) {
-                $this->assertContains($feature, $suites[$themename]['paths'][$key]);
+                $this->assertStringContainsString($feature, $suites[$themename]['paths'][$key]);
             }
         }
         // Check contexts.
@@ -399,7 +399,7 @@ class tool_behat_manager_util_testcase extends advanced_testcase {
             $this->assertCount(count($paths), $suites[$themename]['paths']);
 
             foreach ($paths as $key => $feature) {
-                $this->assertContains($feature, $suites[$themename]['paths'][$key]);
+                $this->assertStringContainsString($feature, $suites[$themename]['paths'][$key]);
             }
         }
         // Check contexts.
@@ -428,7 +428,7 @@ class tool_behat_manager_util_testcase extends advanced_testcase {
             $this->assertCount(count($paths), $suites[$themename]['paths']);
 
             foreach ($paths as $key => $feature) {
-                $this->assertContains($feature, $suites[$themename]['paths'][$key]);
+                $this->assertStringContainsString($feature, $suites[$themename]['paths'][$key]);
             }
         }
         // Check contexts.
@@ -532,7 +532,7 @@ class tool_behat_manager_util_testcase extends advanced_testcase {
             $this->assertCount(count($paths), $suites[$themename]['paths']);
 
             foreach ($paths as $key => $feature) {
-                $this->assertContains($feature, $suites[$themename]['paths'][$key]);
+                $this->assertStringContainsString($feature, $suites[$themename]['paths'][$key]);
             }
         }
         // Check contexts.
@@ -611,7 +611,7 @@ class tool_behat_manager_util_testcase extends advanced_testcase {
             $this->assertCount(count($paths), $suites[$themename]['paths']);
 
             foreach ($paths as $key => $feature) {
-                $this->assertContains($feature, $suites[$themename]['paths'][$key]);
+                $this->assertStringContainsString($feature, $suites[$themename]['paths'][$key]);
             }
         }
         // Check contexts.
@@ -646,7 +646,7 @@ class tool_behat_manager_util_testcase extends advanced_testcase {
             $this->assertCount(count($paths), $suites[$themename]['paths']);
 
             foreach ($paths as $key => $feature) {
-                $this->assertContains($feature, $suites[$themename]['paths'][$key]);
+                $this->assertStringContainsString($feature, $suites[$themename]['paths'][$key]);
             }
         }
 
@@ -662,7 +662,7 @@ class tool_behat_manager_util_testcase extends advanced_testcase {
             $this->assertCount(count($paths), $suites[$themename]['paths']);
 
             foreach ($paths as $key => $feature) {
-                $this->assertContains($feature, $suites[$themename]['paths'][$key]);
+                $this->assertStringContainsString($feature, $suites[$themename]['paths'][$key]);
             }
         }
 
@@ -678,7 +678,7 @@ class tool_behat_manager_util_testcase extends advanced_testcase {
             $this->assertCount(count($paths), $suites[$themename]['paths']);
 
             foreach ($paths as $key => $feature) {
-                $this->assertContains($feature, $suites[$themename]['paths'][$key]);
+                $this->assertStringContainsString($feature, $suites[$themename]['paths'][$key]);
             }
         }
 
@@ -693,7 +693,7 @@ class tool_behat_manager_util_testcase extends advanced_testcase {
             $this->assertCount(count($paths), $suites[$themename]['paths']);
 
             foreach ($paths as $key => $feature) {
-                $this->assertContains($feature, $suites[$themename]['paths'][$key]);
+                $this->assertStringContainsString($feature, $suites[$themename]['paths'][$key]);
             }
         }
     }

admin/tool/behat/version.php

@@ -24,6 +24,6 @@
 
 defined('MOODLE_INTERNAL') || die();
 
-$plugin->version   = 2020061500;   // The current plugin version (Date: YYYYMMDDXX)
-$plugin->requires  = 2020060900;   // Requires this Moodle version
+$plugin->version   = 2020110900;   // The current plugin version (Date: YYYYMMDDXX)
+$plugin->requires  = 2020110300;   // Requires this Moodle version
 $plugin->component = 'tool_behat'; // Full name of the plugin (used for diagnostics)

admin/tool/capability/tests/events_test.php

@@ -36,7 +36,7 @@ class tool_capability_events_testcase extends advanced_testcase {
     /**
      * Setup testcase.
      */
-    public function setUp() {
+    public function setUp(): void {
         $this->setAdminUser();
         $this->resetAfterTest();
     }

admin/tool/capability/version.php

@@ -24,6 +24,6 @@
 
 defined('MOODLE_INTERNAL') || die();
 
-$plugin->version   = 2020061500; // The current plugin version (Date: YYYYMMDDXX).
-$plugin->requires  = 2020060900; // Requires this Moodle version.
+$plugin->version   = 2020110900; // The current plugin version (Date: YYYYMMDDXX).
+$plugin->requires  = 2020110300; // Requires this Moodle version.
 $plugin->component = 'tool_capability'; // Full name of the plugin (used for diagnostics).

admin/tool/capability/yui/build/moodle-tool_capability-search/moodle-tool_capability-search-debug.js

@@ -53,6 +53,13 @@ SEARCH.prototype = {
      * @protected
      */
     button: null,
+    /**
+     * The cancel button for the form.
+     * @property button
+     * @type Node
+     * @protected
+     */
+    cancel: null,
     /**
      * The last search node if there is one.
      * If there is a last search node then the last search term will be persisted between requests.
@@ -76,17 +83,28 @@ SEARCH.prototype = {
         this.button = this.form.all('input[type=submit]');
         this.lastsearch = this.form.one('input[name=search]');
 
-        var div = Y.Node.create('<div id="capabilitysearchui" data-fieldtype="text"></div>'),
-            label = Y.Node.create('<label for="capabilitysearch">' + this.get('strsearch') + '</label>');
-        this.input = Y.Node.create('<input type="text" id="capabilitysearch" />');
+        var div = Y.Node.create('<div id="capabilitysearchui" class="input-group simplesearchform mb-2"' +
+            'data-fieldtype="text"></div>'),
+            label = Y.Node.create('<label for="capabilitysearch"><span class="sr-only"' +
+                this.get('strsearch') + '</span></label>');
+        this.cancel = Y.Node.create('<a class="btn btn-clear d-none icon-no-margin">' +
+                '<i class="icon fa fa-times fa-fw " aria-hidden="true"></i>' +
+                '</a>');
+        this.input = Y.Node.create('<input type="text" class="form-control withclear" placeholder="' +
+            this.get('strsearch') + '"id="capabilitysearch" />');
 
-        div.append(label).append(this.input);
+        div.append(label).append(this.input).append(this.cancel);
 
         this.select.insert(div, 'before');
 
         this.input.on('keyup', this.typed, this);
         this.select.on('change', this.validate, this);
 
+        this.cancel.on('click', function() {
+            this.input.set('value', '');
+            this.typed();
+        }, this);
+
         if (this.lastsearch) {
             this.input.set('value', this.lastsearch.get('value'));
             this.typed();
@@ -133,6 +151,11 @@ SEARCH.prototype = {
                 last.set('selected', true);
             }
         }
+        if (search !== '') {
+            this.cancel.removeClass("d-none");
+        } else {
+            this.cancel.addClass("d-none");
+        }
         this.validate();
     }
 };

admin/tool/capability/yui/build/moodle-tool_capability-search/moodle-tool_capability-search-min.js

@@ -1 +1 @@
-YUI.add("moodle-tool_capability-search",function(i,t){var e=function(){e.superclass.constructor.apply(this,arguments)};e.prototype={form:null,select:null,selectoptions:{},input:null,button:null,lastsearch:null,initializer:function(){this.form=i.one("#capability-overview-form"),this.select=this.form.one("select[data-search=capability]"),this.select.setStyle("minWidth",this.select.get("offsetWidth")),this.select.get("options").each(function(t){var e=t.get("value");this.selectoptions[e]=t},this),this.button=this.form.all("input[type=submit]"),this.lastsearch=this.form.one("input[name=search]");var t=i.Node.create('<div id="capabilitysearchui" data-fieldtype="text"></div>'),e=i.Node.create('<label for="capabilitysearch">'+this.get("strsearch")+"</label>");this.input=i.Node.create('<input type="text" id="capabilitysearch" />'),t.append(e).append(this.input),this.select.insert(t,"before"),this.input.on("keyup",this.typed,this),this.select.on("change",this.validate,this),this.lastsearch&&(this.input.set("value",this.lastsearch.get("value")),this.typed(),this.select.one("option[selected]")&&this.select.set("scrollTop",this.select.one("option[selected]").get("getX"))),this.validate()},validate:function(){this.button.set("disabled",""===this.select.get("value"))},typed:function(){var t,e=this.input.get("value"),i=0,s=null;for(t in this.lastsearch&&this.lastsearch.set("value",e),this.select.all("option").remove(),this.selectoptions)0<=t.indexOf(e)&&(i++,s=this.selectoptions[t],this.select.append(this.selectoptions[t]));0===i?this.input.addClass("error"):(this.input.removeClass("error"),1===i&&s.set("selected",!0)),this.validate()}},i.extend(e,i.Base,e.prototype,{NAME:"tool_capability-search",ATTRS:{strsearch:{}}}),M.tool_capability=M.tool_capability||{},M.tool_capability.init_capability_search=function(t){new e(t)}},"@VERSION@",{requires:["base","node"]});
+YUI.add("moodle-tool_capability-search",function(s,t){var e=function(){e.superclass.constructor.apply(this,arguments)};e.prototype={form:null,select:null,selectoptions:{},input:null,button:null,cancel:null,lastsearch:null,initializer:function(){this.form=s.one("#capability-overview-form"),this.select=this.form.one("select[data-search=capability]"),this.select.setStyle("minWidth",this.select.get("offsetWidth")),this.select.get("options").each(function(t){var e=t.get("value");this.selectoptions[e]=t},this),this.button=this.form.all("input[type=submit]"),this.lastsearch=this.form.one("input[name=search]");var t=s.Node.create('<div id="capabilitysearchui" class="input-group simplesearchform mb-2"data-fieldtype="text"></div>'),e=s.Node.create('<label for="capabilitysearch"><span class="sr-only"'+this.get("strsearch")+"</span></label>");this.cancel=s.Node.create('<a class="btn btn-clear d-none icon-no-margin"><i class="icon fa fa-times fa-fw " aria-hidden="true"></i></a>'),this.input=s.Node.create('<input type="text" class="form-control withclear" placeholder="'+this.get("strsearch")+'"id="capabilitysearch" />'),t.append(e).append(this.input).append(this.cancel),this.select.insert(t,"before"),this.input.on("keyup",this.typed,this),this.select.on("change",this.validate,this),this.cancel.on("click",function(){this.input.set("value",""),this.typed()},this),this.lastsearch&&(this.input.set("value",this.lastsearch.get("value")),this.typed(),this.select.one("option[selected]")&&this.select.set("scrollTop",this.select.one("option[selected]").get("getX"))),this.validate()},validate:function(){this.button.set("disabled",""===this.select.get("value"))},typed:function(){var t,e=this.input.get("value"),s=0,i=null;for(t in this.lastsearch&&this.lastsearch.set("value",e),this.select.all("option").remove(),this.selectoptions)0<=t.indexOf(e)&&(s++,i=this.selectoptions[t],this.select.append(this.selectoptions[t]));0===s?this.input.addClass("error"):(this.input.removeClass("error"),1===s&&i.set("selected",!0)),""!==e?this.cancel.removeClass("d-none"):this.cancel.addClass("d-none"),this.validate()}},s.extend(e,s.Base,e.prototype,{NAME:"tool_capability-search",ATTRS:{strsearch:{}}}),M.tool_capability=M.tool_capability||{},M.tool_capability.init_capability_search=function(t){new e(t)}},"@VERSION@",{requires:["base","node"]});

admin/tool/capability/yui/build/moodle-tool_capability-search/moodle-tool_capability-search.js

@@ -53,6 +53,13 @@ SEARCH.prototype = {
      * @protected
      */
     button: null,
+    /**
+     * The cancel button for the form.
+     * @property button
+     * @type Node
+     * @protected
+     */
+    cancel: null,
     /**
      * The last search node if there is one.
      * If there is a last search node then the last search term will be persisted between requests.
@@ -76,17 +83,28 @@ SEARCH.prototype = {
         this.button = this.form.all('input[type=submit]');
         this.lastsearch = this.form.one('input[name=search]');
 
-        var div = Y.Node.create('<div id="capabilitysearchui" data-fieldtype="text"></div>'),
-            label = Y.Node.create('<label for="capabilitysearch">' + this.get('strsearch') + '</label>');
-        this.input = Y.Node.create('<input type="text" id="capabilitysearch" />');
+        var div = Y.Node.create('<div id="capabilitysearchui" class="input-group simplesearchform mb-2"' +
+            'data-fieldtype="text"></div>'),
+            label = Y.Node.create('<label for="capabilitysearch"><span class="sr-only"' +
+                this.get('strsearch') + '</span></label>');
+        this.cancel = Y.Node.create('<a class="btn btn-clear d-none icon-no-margin">' +
+                '<i class="icon fa fa-times fa-fw " aria-hidden="true"></i>' +
+                '</a>');
+        this.input = Y.Node.create('<input type="text" class="form-control withclear" placeholder="' +
+            this.get('strsearch') + '"id="capabilitysearch" />');
 
-        div.append(label).append(this.input);
+        div.append(label).append(this.input).append(this.cancel);
 
         this.select.insert(div, 'before');
 
         this.input.on('keyup', this.typed, this);
         this.select.on('change', this.validate, this);
 
+        this.cancel.on('click', function() {
+            this.input.set('value', '');
+            this.typed();
+        }, this);
+
         if (this.lastsearch) {
             this.input.set('value', this.lastsearch.get('value'));
             this.typed();
@@ -133,6 +151,11 @@ SEARCH.prototype = {
                 last.set('selected', true);
             }
         }
+        if (search !== '') {
+            this.cancel.removeClass("d-none");
+        } else {
+            this.cancel.addClass("d-none");
+        }
         this.validate();
     }
 };

admin/tool/capability/yui/src/search/js/search.js

@@ -51,6 +51,13 @@ SEARCH.prototype = {
      * @protected
      */
     button: null,
+    /**
+     * The cancel button for the form.
+     * @property button
+     * @type Node
+     * @protected
+     */
+    cancel: null,
     /**
      * The last search node if there is one.
      * If there is a last search node then the last search term will be persisted between requests.
@@ -74,17 +81,28 @@ SEARCH.prototype = {
         this.button = this.form.all('input[type=submit]');
         this.lastsearch = this.form.one('input[name=search]');
 
-        var div = Y.Node.create('<div id="capabilitysearchui" data-fieldtype="text"></div>'),
-            label = Y.Node.create('<label for="capabilitysearch">' + this.get('strsearch') + '</label>');
-        this.input = Y.Node.create('<input type="text" id="capabilitysearch" />');
+        var div = Y.Node.create('<div id="capabilitysearchui" class="input-group simplesearchform mb-2"' +
+            'data-fieldtype="text"></div>'),
+            label = Y.Node.create('<label for="capabilitysearch"><span class="sr-only"' +
+                this.get('strsearch') + '</span></label>');
+        this.cancel = Y.Node.create('<a class="btn btn-clear d-none icon-no-margin">' +
+                '<i class="icon fa fa-times fa-fw " aria-hidden="true"></i>' +
+                '</a>');
+        this.input = Y.Node.create('<input type="text" class="form-control withclear" placeholder="' +
+            this.get('strsearch') + '"id="capabilitysearch" />');
 
-        div.append(label).append(this.input);
+        div.append(label).append(this.input).append(this.cancel);
 
         this.select.insert(div, 'before');
 
         this.input.on('keyup', this.typed, this);
         this.select.on('change', this.validate, this);
 
+        this.cancel.on('click', function() {
+            this.input.set('value', '');
+            this.typed();
+        }, this);
+
         if (this.lastsearch) {
             this.input.set('value', this.lastsearch.get('value'));
             this.typed();
@@ -131,6 +149,11 @@ SEARCH.prototype = {
                 last.set('selected', true);
             }
         }
+        if (search !== '') {
+            this.cancel.removeClass("d-none");
+        } else {
+            this.cancel.addClass("d-none");
+        }
         this.validate();
     }
 };

admin/tool/cohortroles/db/upgrade.php

@@ -41,5 +41,11 @@ function xmldb_tool_cohortroles_upgrade($oldversion) {
         upgrade_plugin_savepoint(true, 2020020600, 'tool', 'cohortroles');
     }
 
+    // Automatically generated Moodle v3.9.0 release upgrade line.
+    // Put any upgrade step following this.
+
+    // Automatically generated Moodle v3.10.0 release upgrade line.
+    // Put any upgrade step following this.
+
     return true;
 }

admin/tool/cohortroles/tests/api_test.php

@@ -49,7 +49,7 @@ class tool_cohortroles_api_testcase extends advanced_testcase {
     /**
      * Setup function- we will create a course and add an assign instance to it.
      */
-    protected function setUp() {
+    protected function setUp(): void {
         $this->resetAfterTest(true);
 
         // Create some users.
@@ -60,9 +60,6 @@ class tool_cohortroles_api_testcase extends advanced_testcase {
         cohort_add_member($this->cohort->id, $this->userassignover->id);
     }
 
-    /**
-     * @expectedException required_capability_exception
-     */
     public function test_create_cohort_role_assignment_without_permission() {
         $this->setUser($this->userassignto);
         $params = (object) array(
@@ -70,12 +67,10 @@ class tool_cohortroles_api_testcase extends advanced_testcase {
             'roleid' => $this->roleid,
             'cohortid' => $this->cohort->id
         );
+        $this->expectException(required_capability_exception::class);
         api::create_cohort_role_assignment($params);
     }
 
-    /**
-     * @expectedException core_competency\invalid_persistent_exception
-     */
     public function test_create_cohort_role_assignment_with_invalid_data() {
         $this->setAdminUser();
         $params = (object) array(
@@ -83,6 +78,7 @@ class tool_cohortroles_api_testcase extends advanced_testcase {
             'roleid' => -8,
             'cohortid' => $this->cohort->id
         );
+        $this->expectException(\core_competency\invalid_persistent_exception::class);
         api::create_cohort_role_assignment($params);
     }
 
@@ -100,9 +96,6 @@ class tool_cohortroles_api_testcase extends advanced_testcase {
         $this->assertEquals($result->get('cohortid'), $this->cohort->id);
     }
 
-    /**
-     * @expectedException required_capability_exception
-     */
     public function test_delete_cohort_role_assignment_without_permission() {
         $this->setAdminUser();
         $params = (object) array(
@@ -112,12 +105,10 @@ class tool_cohortroles_api_testcase extends advanced_testcase {
         );
         $result = api::create_cohort_role_assignment($params);
         $this->setUser($this->userassignto);
+        $this->expectException(required_capability_exception::class);
         api::delete_cohort_role_assignment($result->get('id'));
     }
 
-    /**
-     * @expectedException dml_missing_record_exception
-     */
     public function test_delete_cohort_role_assignment_with_invalid_data() {
         $this->setAdminUser();
         $params = (object) array(
@@ -126,6 +117,7 @@ class tool_cohortroles_api_testcase extends advanced_testcase {
             'cohortid' => $this->cohort->id
         );
         $result = api::create_cohort_role_assignment($params);
+        $this->expectException(dml_missing_record_exception::class);
         api::delete_cohort_role_assignment($result->get('id') + 1);
     }
 

admin/tool/cohortroles/tests/privacy_test.php

@@ -43,7 +43,7 @@ class tool_cohortroles_privacy_testcase extends \core_privacy\tests\provider_tes
     /**
      * Overriding setUp() function to always reset after tests.
      */
-    public function setUp() {
+    public function setUp(): void {
         $this->resetAfterTest(true);
     }
 
@@ -87,7 +87,7 @@ class tool_cohortroles_privacy_testcase extends \core_privacy\tests\provider_tes
             CONTEXT_COURSECAT
         ];
         // Test the User's contexts equal the system and course category context.
-        $this->assertEquals($expected, $contextlevels, '', 0, 10, true);
+        $this->assertEqualsCanonicalizing($expected, $contextlevels);
     }
 
     /**

admin/tool/cohortroles/version.php

@@ -25,8 +25,8 @@
 defined('MOODLE_INTERNAL') || die();
 
 
-$plugin->version   = 2020061500; // The current plugin version (Date: YYYYMMDDXX).
-$plugin->requires  = 2020060900; // Requires this Moodle version.
+$plugin->version   = 2020110900; // The current plugin version (Date: YYYYMMDDXX).
+$plugin->requires  = 2020110300; // Requires this Moodle version.
 $plugin->component = 'tool_cohortroles'; // Full name of the plugin (used for diagnostics).
 
 $plugin->dependencies = array(

admin/tool/customlang/classes/form/export.php

@@ -0,0 +1,68 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Creates Formular for customlang file export
+ *
+ * @package    tool_customlang
+ * @copyright  2020 Thomas Wedekind <Thomas.Wedekind@univie.ac.at>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+namespace tool_customlang\form;
+
+use tool_customlang_utils;
+
+/**
+ * Formular for customlang file export
+ *
+ * @copyright  2020 Thomas Wedekind <Thomas.Wedekind@univie.ac.at>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class export extends \moodleform {
+
+    /**
+     * Add elements to form
+     */
+    public function definition() {
+        $lng = $this->_customdata['lng'];
+        $mform = $this->_form;
+
+        $langdir = tool_customlang_utils::get_localpack_location($lng);
+
+        // The export button only appears if a local lang is present.
+        if (!check_dir_exists($langdir) || !count(glob("$langdir/*"))) {
+            print_error('nolocallang', 'tool_customlang');
+        }
+
+        $langfiles = scandir($langdir);
+        $fileoptions = [];
+        foreach ($langfiles as $file) {
+            if (substr($file, 0, 1) != '.') {
+                $fileoptions[$file] = $file;
+            }
+        }
+
+        $mform->addElement('hidden', 'lng', $lng);
+        $mform->setType('lng', PARAM_LANG);
+
+        $select = $mform->addElement('select', 'files', get_string('exportfilter', 'tool_customlang'), $fileoptions);
+        $select->setMultiple(true);
+        $mform->addRule('files', get_string('required'), 'required', null, 'client');
+        $mform->setDefault('files', $fileoptions);
+
+        $this->add_action_buttons(true, get_string('export', 'tool_customlang'));
+    }
+}

admin/tool/customlang/classes/form/import.php

@@ -0,0 +1,68 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Upload a zip of custom lang php files.
+ *
+ * @package    tool_customlang
+ * @copyright  2020 Ferran Recio <ferran@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+namespace tool_customlang\form;
+
+use tool_customlang\local\importer;
+
+/**
+ * Upload a zip/php of custom lang php files.
+ *
+ * @copyright  2020 Ferran Recio <ferran@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class import extends \moodleform {
+
+    /**
+     * Form definition.
+     */
+    public function definition() {
+        $mform = $this->_form;
+        $mform->addElement('header', 'settingsheader', get_string('import', 'tool_customlang'));
+
+        $mform->addElement('hidden', 'lng');
+        $mform->setType('lng', PARAM_LANG);
+        $mform->setDefault('lng', $this->_customdata['lng']);
+
+        $filemanageroptions = array(
+            'accepted_types' => array('.php', '.zip'),
+            'maxbytes' => 0,
+            'maxfiles' => 1,
+            'subdirs' => 0
+        );
+
+        $mform->addElement('filepicker', 'pack', get_string('langpack', 'tool_customlang'),
+            null, $filemanageroptions);
+        $mform->addRule('pack', null, 'required');
+
+        $modes = [
+            importer::IMPORTALL => get_string('import_all', 'tool_customlang'),
+            importer::IMPORTUPDATE => get_string('import_update', 'tool_customlang'),
+            importer::IMPORTNEW => get_string('import_new', 'tool_customlang'),
+        ];
+        $mform->addElement('select', 'importmode', get_string('import_mode', 'tool_customlang'), $modes);
+
+        $mform->addElement('submit', 'importcustomstrings', get_string('importfile', 'tool_customlang'));
+    }
+}

admin/tool/customlang/classes/local/importer.php

@@ -0,0 +1,268 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Custom lang importer.
+ *
+ * @package    tool_customlang
+ * @copyright  2020 Ferran Recio <ferran@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+namespace tool_customlang\local;
+
+use tool_customlang\local\mlang\phpparser;
+use tool_customlang\local\mlang\logstatus;
+use tool_customlang\local\mlang\langstring;
+use core\output\notification;
+use stored_file;
+use coding_exception;
+use moodle_exception;
+use core_component;
+use stdClass;
+
+/**
+ * Class containing tha custom lang importer
+ *
+ * @package    tool_customlang
+ * @copyright  2020 Ferran Recio <ferran@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class importer {
+
+    /** @var int imports will only create new customizations */
+    public const IMPORTNEW = 1;
+    /** @var int imports will only update the current customizations */
+    public const IMPORTUPDATE = 2;
+    /** @var int imports all strings */
+    public const IMPORTALL = 3;
+
+    /**
+     * @var string the language name
+     */
+    protected $lng;
+
+    /**
+     * @var int the importation mode (new, update, all)
+     */
+    protected $importmode;
+
+    /**
+     * @var string request folder path
+     */
+    private $folder;
+
+    /**
+     * @var array import log messages
+     */
+    private $log;
+
+    /**
+     * Constructor for the importer class.
+     *
+     * @param string $lng the current language to import.
+     * @param int $importmode the import method (IMPORTALL, IMPORTNEW, IMPORTUPDATE).
+     */
+    public function __construct(string $lng, int $importmode = self::IMPORTALL) {
+        $this->lng = $lng;
+        $this->importmode = $importmode;
+        $this->log = [];
+    }
+
+    /**
+     * Returns the last parse log.
+     *
+     * @return logstatus[] mlang logstatus with the messages
+     */
+    public function get_log(): array {
+        return $this->log;
+    }
+
+    /**
+     * Import customlang files.
+     *
+     * @param stored_file[] $files array of files to import
+     */
+    public function import(array $files): void {
+        // Create a temporal folder to store the files.
+        $this->folder = make_request_directory(false);
+
+        $langfiles = $this->deploy_files($files);
+
+        $this->process_files($langfiles);
+    }
+
+    /**
+     * Deploy all files into a request folder.
+     *
+     * @param stored_file[] $files array of files to deploy
+     * @return string[] of file paths
+     */
+    private function deploy_files(array $files): array {
+        $result = [];
+        // Desploy all files.
+        foreach ($files as $file) {
+            if ($file->get_mimetype() == 'application/zip') {
+                $result = array_merge($result, $this->unzip_file($file));
+            } else {
+                $path = $this->folder.'/'.$file->get_filename();
+                $file->copy_content_to($path);
+                $result = array_merge($result, [$path]);
+            }
+        }
+        return $result;
+    }
+
+    /**
+     * Unzip a file into the request folder.
+     *
+     * @param stored_file $file the zip file to unzip
+     * @return string[] of zip content paths
+     */
+    private function unzip_file(stored_file $file): array {
+        $fp = get_file_packer('application/zip');
+        $zipcontents = $fp->extract_to_pathname($file, $this->folder);
+        if (!$zipcontents) {
+            throw new moodle_exception("Error Unzipping file", 1);
+        }
+        $result = [];
+        foreach ($zipcontents as $contentname => $success) {
+            if ($success) {
+                $result[] = $this->folder.'/'.$contentname;
+            }
+        }
+        return $result;
+    }
+
+    /**
+     * Import strings from a list of langfiles.
+     *
+     * @param string[] $langfiles an array with file paths
+     */
+    private function process_files(array $langfiles): void {
+        $parser = phpparser::get_instance();
+        foreach ($langfiles as $filepath) {
+            $component = $this->component_from_filepath($filepath);
+            if ($component) {
+                $strings = $parser->parse(file_get_contents($filepath));
+                $this->import_strings($strings, $component);
+            }
+        }
+    }
+
+    /**
+     * Try to get the component from a filepath.
+     *
+     * @param string $filepath the filepath
+     * @return stdCalss|null the DB record of that component
+     */
+    private function component_from_filepath(string $filepath) {
+        global $DB;
+
+        // Get component from filename.
+        $pathparts = pathinfo($filepath);
+        if (empty($pathparts['filename'])) {
+            throw new coding_exception("Cannot get filename from $filepath", 1);
+        }
+        $filename = $pathparts['filename'];
+
+        $normalized = core_component::normalize_component($filename);
+        if (count($normalized) == 1 || empty($normalized[1])) {
+            $componentname = $normalized[0];
+        } else {
+            $componentname = implode('_', $normalized);
+        }
+
+        $result = $DB->get_record('tool_customlang_components', ['name' => $componentname]);
+
+        if (!$result) {
+            $this->log[] = new logstatus('notice_missingcomponent', notification::NOTIFY_ERROR, null, $componentname);
+            return null;
+        }
+        return $result;
+    }
+
+    /**
+     * Import an array of strings into the customlang tables.
+     *
+     * @param langstring[] $strings the langstring to set
+     * @param stdClass $component the target component
+     */
+    private function import_strings(array $strings, stdClass $component): void {
+        global $DB;
+
+        foreach ($strings as $newstring) {
+            // Check current DB entry.
+            $customlang = $DB->get_record('tool_customlang', [
+                'componentid' => $component->id,
+                'stringid' => $newstring->id,
+                'lang' => $this->lng,
+            ]);
+            if (!$customlang) {
+                $customlang = null;
+            }
+
+            if ($this->can_save_string($customlang, $newstring, $component)) {
+                $customlang->local = $newstring->text;
+                $customlang->timecustomized = $newstring->timemodified;
+                $customlang->outdated = 0;
+                $customlang->modified = 1;
+                $DB->update_record('tool_customlang', $customlang);
+            }
+        }
+    }
+
+    /**
+     * Determine if a specific string can be saved based on the current importmode.
+     *
+     * @param stdClass $customlang customlang original record
+     * @param langstring $newstring the new strign to store
+     * @param stdClass $component the component target
+     * @return bool if the string can be stored
+     */
+    private function can_save_string(?stdClass $customlang, langstring $newstring, stdClass $component): bool {
+        $result = false;
+        $message = 'notice_success';
+        if (empty($customlang)) {
+            $message = 'notice_inexitentstring';
+            $this->log[] = new logstatus($message, notification::NOTIFY_ERROR, null, $component->name, $newstring);
+            return $result;
+        }
+
+        switch ($this->importmode) {
+            case self::IMPORTNEW:
+                $result = empty($customlang->local);
+                $warningmessage = 'notice_ignoreupdate';
+                break;
+            case self::IMPORTUPDATE:
+                $result = !empty($customlang->local);
+                $warningmessage = 'notice_ignorenew';
+                break;
+            case self::IMPORTALL:
+                $result = true;
+                break;
+        }
+        if ($result) {
+            $errorlevel = notification::NOTIFY_SUCCESS;
+        } else {
+            $errorlevel = notification::NOTIFY_ERROR;
+            $message = $warningmessage;
+        }
+        $this->log[] = new logstatus($message, $errorlevel, null, $component->name, $newstring);
+
+        return $result;
+    }
+}

admin/tool/customlang/classes/local/mlang/langstring.php

@@ -0,0 +1,177 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Language string based on David Mudrak langstring from local_amos.
+ *
+ * @package    tool_customlang
+ * @copyright  2020 Ferran Recio <ferran@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+namespace tool_customlang\local\mlang;
+
+use moodle_exception;
+use stdclass;
+
+/**
+ * Class containing a lang string cleaned.
+ *
+ * @package    tool_customlang
+ * @copyright  2020 Ferran Recio <ferran@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+/**
+ * Represents a single string
+ */
+class langstring {
+
+    /** @var string identifier */
+    public $id = null;
+
+    /** @var string */
+    public $text = '';
+
+    /** @var int the time stamp when this string was saved */
+    public $timemodified = null;
+
+    /** @var bool is deleted */
+    public $deleted = false;
+
+    /** @var stdclass extra information about the string */
+    public $extra = null;
+
+    /**
+     * Class constructor.
+     *
+     * @param string $id string identifier
+     * @param string $text string text
+     * @param int $timemodified
+     * @param int $deleted
+     * @param stdclass $extra
+     */
+    public function __construct(string $id, string $text = '', int $timemodified = null,
+            int $deleted = 0, stdclass $extra = null) {
+
+        if (is_null($timemodified)) {
+            $timemodified = time();
+        }
+        $this->id           = $id;
+        $this->text         = $text;
+        $this->timemodified = $timemodified;
+        $this->deleted      = $deleted;
+        $this->extra        = $extra;
+    }
+
+    /**
+     * Given a string text, returns it being formatted properly for storing in AMOS repository.
+     *
+     * Note: This method is taken directly from local_amos as it is highly tested and robust.
+     * The Moodle 1.x part is keep on puspose to make it easier the copy paste from both codes.
+     * This could change in the future when AMOS stop suporting the 1.x langstrings.
+     *
+     * We need to know for what branch the string should be prepared due to internal changes in
+     * format required by get_string()
+     * - for get_string() in Moodle 1.6 - 1.9 use $format == 1
+     * - for get_string() in Moodle 2.0 and higher use $format == 2
+     *
+     * Typical usages of this methods:
+     *  $t = langstring::fix_syntax($t);          // sanity new translations of 2.x strings
+     *  $t = langstring::fix_syntax($t, 1);       // sanity legacy 1.x strings
+     *  $t = langstring::fix_syntax($t, 2, 1);    // convert format of 1.x strings into 2.x
+     *
+     * Backward converting 2.x format into 1.x is not supported
+     *
+     * @param string $text string text to be fixed
+     * @param int $format target get_string() format version
+     * @param int $from which format version does the text come from, defaults to the same as $format
+     * @return string
+     */
+    public static function fix_syntax(string $text, int $format = 2, ?int $from = null): string {
+        if (is_null($from)) {
+            $from = $format;
+        }
+
+        // Common filter.
+        $clean = trim($text);
+        $search = [
+            // Remove \r if it is part of \r\n.
+            '/\r(?=\n)/',
+
+            // Control characters to be replaced with \n
+            // LINE TABULATION, FORM FEED, CARRIAGE RETURN, END OF TRANSMISSION BLOCK,
+            // END OF MEDIUM, SUBSTITUTE, BREAK PERMITTED HERE, NEXT LINE, START OF STRING,
+            // STRING TERMINATOR and Unicode character categorys Zl and Zp.
+            '/[\x{0B}-\r\x{17}\x{19}\x{1A}\x{82}\x{85}\x{98}\x{9C}\p{Zl}\p{Zp}]/u',
+
+            // Control characters to be removed
+            // NULL, ENQUIRY, ACKNOWLEDGE, BELL, SHIFT {OUT,IN}, DATA LINK ESCAPE,
+            // DEVICE CONTROL {ONE,TWO,THREE,FOUR}, NEGATIVE ACKNOWLEDGE, SYNCHRONOUS IDLE, ESCAPE,
+            // DELETE, PADDING CHARACTER, HIGH OCTET PRESET, NO BREAK HERE, INDEX,
+            // {START,END} OF SELECTED AREA, CHARACTER TABULATION {SET,WITH JUSTIFICATION},
+            // LINE TABULATION SET, PARTIAL LINE {FORWARD,BACKWARD}, REVERSE LINE FEED,
+            // SINGLE SHIFT {TWO,THREE}, DEVICE CONTROL STRING, PRIVATE USE {ONE,TWO},
+            // SET TRANSMIT STATE, MESSAGE WAITING, {START,END} OF GUARDED AREA,
+            // {SINGLE {GRAPHIC,} CHARACTER,CONTROL SEQUENCE} INTRODUCER, OPERATING SYSTEM COMMAND,
+            // PRIVACY MESSAGE, APPLICATION PROGRAM COMMAND, ZERO WIDTH {,NO-BREAK} SPACE,
+            // REPLACEMENT CHARACTER.
+            '/[\0\x{05}-\x{07}\x{0E}-\x{16}\x{1B}\x{7F}\x{80}\x{81}\x{83}\x{84}\x{86}-\x{93}\x{95}-\x{97}\x{99}-\x{9B}\x{9D}-\x{9F}\x{200B}\x{FEFF}\x{FFFD}]++/u',
+
+            // Remove trailing whitespace at the end of lines in a multiline string.
+            '/[ \t]+(?=\n)/',
+        ];
+        $replace = [
+            '',
+            "\n",
+            '',
+            '',
+        ];
+        $clean = preg_replace($search, $replace, $clean);
+
+        if (($format === 2) && ($from === 2)) {
+            // Sanity translations of 2.x strings.
+            $clean = preg_replace("/\n{3,}/", "\n\n\n", $clean); // Collapse runs of blank lines.
+
+        } else if (($format === 2) && ($from === 1)) {
+            // Convert 1.x string into 2.x format.
+            $clean = preg_replace("/\n{3,}/", "\n\n\n", $clean); // Collapse runs of blank lines.
+            $clean = preg_replace('/%+/', '%', $clean); // Collapse % characters.
+            $clean = str_replace('\$', '@@@___XXX_ESCAPED_DOLLAR__@@@', $clean); // Remember for later.
+            $clean = str_replace("\\", '', $clean); // Delete all slashes.
+            $clean = preg_replace('/(^|[^{])\$a\b(\->[a-zA-Z0-9_]+)?/', '\\1{$a\\2}', $clean); // Wrap placeholders.
+            $clean = str_replace('@@@___XXX_ESCAPED_DOLLAR__@@@', '$', $clean);
+            $clean = str_replace('&#36;', '$', $clean);
+
+        } else if (($format === 1) && ($from === 1)) {
+            // Sanity legacy 1.x strings.
+            $clean = preg_replace("/\n{3,}/", "\n\n", $clean); // Collapse runs of blank lines.
+            $clean = str_replace('\$', '@@@___XXX_ESCAPED_DOLLAR__@@@', $clean);
+            $clean = str_replace("\\", '', $clean); // Delete all slashes.
+            $clean = str_replace('$', '\$', $clean); // Escape all embedded variables.
+            // Unescape placeholders: only $a and $a->something are allowed. All other $variables are left escaped.
+            $clean = preg_replace('/\\\\\$a\b(\->[a-zA-Z0-9_]+)?/', '$a\\1', $clean); // Unescape placeholders.
+            $clean = str_replace('@@@___XXX_ESCAPED_DOLLAR__@@@', '\$', $clean);
+            $clean = str_replace('"', "\\\"", $clean); // Add slashes for ".
+            $clean = preg_replace('/%+/', '%', $clean); // Collapse % characters.
+            $clean = str_replace('%', '%%', $clean); // Duplicate %.
+
+        } else {
+            throw new moodle_exception('Unknown get_string() format version');
+        }
+        return $clean;
+    }
+}

admin/tool/customlang/classes/local/mlang/logstatus.php

@@ -0,0 +1,92 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Language string based on David Mudrak langstring from local_amos.
+ *
+ * @package    tool_customlang
+ * @copyright  2020 Ferran Recio <ferran@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+namespace tool_customlang\local\mlang;
+
+use moodle_exception;
+use stdclass;
+
+/**
+ * Class containing a lang string cleaned.
+ *
+ * @package    tool_customlang
+ * @copyright  2020 Ferran Recio <ferran@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+/**
+ * Represents a single string
+ */
+class logstatus {
+
+    /** @var langstring the current string */
+    public $langstring = null;
+
+    /** @var string the component */
+    public $component = null;
+
+    /** @var string the string ID */
+    public $stringid = null;
+
+    /** @var string the original filename */
+    public $filename = null;
+
+    /** @var int the error level */
+    public $errorlevel = null;
+
+    /** @var string the message identifier */
+    private $message;
+
+    /**
+     * Class creator.
+     *
+     * @param string $message the message identifier to display
+     * @param string $errorlevel the notice level
+     * @param string|null $filename the filename of this log
+     * @param string|null $component the component of this log
+     * @param langstring|null $langstring the langstring of this log
+     */
+    public function __construct(string $message, string $errorlevel, ?string $filename = null,
+            ?string $component = null, ?langstring $langstring = null) {
+
+        $this->filename = $filename;
+        $this->component = $component;
+        $this->langstring = $langstring;
+        $this->message = $message;
+        $this->errorlevel = $errorlevel;
+
+        if ($langstring) {
+            $this->stringid = $langstring->id;
+        }
+    }
+
+    /**
+     * Get the log message.
+     *
+     * @return string the log message.
+     */
+    public function get_message(): string {
+        return get_string($this->message, 'tool_customlang', $this);
+    }
+}

admin/tool/customlang/classes/local/mlang/phpparser.php

@@ -0,0 +1,260 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Mlang PHP based on David Mudrak phpparser for local_amos.
+ *
+ * @package    tool_customlang
+ * @copyright  2020 Ferran Recio <ferran@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+namespace tool_customlang\local\mlang;
+
+use coding_exception;
+use moodle_exception;
+
+/**
+ * Parser of Moodle strings defined as associative array.
+ *
+ * Moodle core just includes this file format directly as normal PHP code. However
+ * for security reasons, we must not do this for files uploaded by anonymous users.
+ * This parser reconstructs the associative $string array without actually including
+ * the file.
+ */
+class phpparser {
+
+    /** @var holds the singleton instance of self */
+    private static $instance = null;
+
+    /**
+     * Prevents direct creation of object
+     */
+    private function __construct() {
+    }
+
+    /**
+     * Prevent from cloning the instance
+     */
+    public function __clone() {
+        throw new coding_exception('Cloning os singleton is not allowed');
+    }
+
+    /**
+     * Get the singleton instance fo this class
+     *
+     * @return phpparser singleton instance of phpparser
+     */
+    public static function get_instance(): phpparser {
+        if (is_null(self::$instance)) {
+            self::$instance = new phpparser();
+        }
+        return self::$instance;
+    }
+
+    /**
+     * Parses the given data in Moodle PHP string format
+     *
+     * Note: This method is adapted from local_amos as it is highly tested and robust.
+     * The priority is keeping it similar to the original one to make it easier to mantain.
+     *
+     * @param string $data definition of the associative array
+     * @param int $format the data format on the input, defaults to the one used since 2.0
+     * @return langstring[] array of langstrings of this file
+     */
+    public function parse(string $data, int $format = 2): array {
+        $result = [];
+        $strings = $this->extract_strings($data);
+        foreach ($strings as $id => $text) {
+            $cleaned = clean_param($id, PARAM_STRINGID);
+            if ($cleaned !== $id) {
+                continue;
+            }
+            $text = langstring::fix_syntax($text, 2, $format);
+            $result[] = new langstring($id, $text);
+        }
+        return $result;
+    }
+
+    /**
+     * Low level parsing method
+     *
+     * Note: This method is adapted from local_amos as it is highly tested and robust.
+     * The priority is keeping it similar to the original one to make it easier to mantain.
+     *
+     * @param string $data
+     * @return string[] the data strings
+     */
+    protected function extract_strings(string $data): array {
+
+        $strings = []; // To be returned.
+
+        if (empty($data)) {
+            return $strings;
+        }
+
+        // Tokenize data - we expect valid PHP code.
+        $tokens = token_get_all($data);
+
+        // Get rid of all non-relevant tokens.
+        $rubbish = [T_WHITESPACE, T_INLINE_HTML, T_COMMENT, T_DOC_COMMENT, T_OPEN_TAG, T_CLOSE_TAG];
+        foreach ($tokens as $i => $token) {
+            if (is_array($token)) {
+                if (in_array($token[0], $rubbish)) {
+                    unset($tokens[$i]);
+                }
+            }
+        }
+
+        $id = null;
+        $text = null;
+        $line = 0;
+        $expect = 'STRING_VAR'; // The first expected token is '$string'.
+
+        // Iterate over tokens and look for valid $string array assignment patterns.
+        foreach ($tokens as $token) {
+            $foundtype = null;
+            $founddata = null;
+            if (is_array($token)) {
+                $foundtype = $token[0];
+                $founddata = $token[1];
+                if (!empty($token[2])) {
+                    $line = $token[2];
+                }
+
+            } else {
+                $foundtype = 'char';
+                $founddata = $token;
+            }
+
+            if ($expect == 'STRING_VAR') {
+                if ($foundtype === T_VARIABLE and $founddata === '$string') {
+                    $expect = 'LEFT_BRACKET';
+                    continue;
+                } else {
+                    // Allow other code at the global level.
+                    continue;
+                }
+            }
+
+            if ($expect == 'LEFT_BRACKET') {
+                if ($foundtype === 'char' and $founddata === '[') {
+                    $expect = 'STRING_ID';
+                    continue;
+                } else {
+                    throw new moodle_exception('Parsing error. Expected character [ at line '.$line);
+                }
+            }
+
+            if ($expect == 'STRING_ID') {
+                if ($foundtype === T_CONSTANT_ENCAPSED_STRING) {
+                    $id = $this->decapsulate($founddata);
+                    $expect = 'RIGHT_BRACKET';
+                    continue;
+                } else {
+                    throw new moodle_exception('Parsing error. Expected T_CONSTANT_ENCAPSED_STRING array key at line '.$line);
+                }
+            }
+
+            if ($expect == 'RIGHT_BRACKET') {
+                if ($foundtype === 'char' and $founddata === ']') {
+                    $expect = 'ASSIGNMENT';
+                    continue;
+                } else {
+                    throw new moodle_exception('Parsing error. Expected character ] at line '.$line);
+                }
+            }
+
+            if ($expect == 'ASSIGNMENT') {
+                if ($foundtype === 'char' and $founddata === '=') {
+                    $expect = 'STRING_TEXT';
+                    continue;
+                } else {
+                    throw new moodle_exception('Parsing error. Expected character = at line '.$line);
+                }
+            }
+
+            if ($expect == 'STRING_TEXT') {
+                if ($foundtype === T_CONSTANT_ENCAPSED_STRING) {
+                    $text = $this->decapsulate($founddata);
+                    $expect = 'SEMICOLON';
+                    continue;
+                } else {
+                    throw new moodle_exception(
+                        'Parsing error. Expected T_CONSTANT_ENCAPSED_STRING array item value at line '.$line
+                    );
+                }
+            }
+
+            if ($expect == 'SEMICOLON') {
+                if (is_null($id) or is_null($text)) {
+                    throw new moodle_exception('Parsing error. NULL string id or value at line '.$line);
+                }
+                if ($foundtype === 'char' and $founddata === ';') {
+                    if (!empty($id)) {
+                        $strings[$id] = $text;
+                    }
+                    $id = null;
+                    $text = null;
+                    $expect = 'STRING_VAR';
+                    continue;
+                } else {
+                    throw new moodle_exception('Parsing error. Expected character ; at line '.$line);
+                }
+            }
+
+        }
+
+        return $strings;
+    }
+
+    /**
+     * Given one T_CONSTANT_ENCAPSED_STRING, return its value without quotes
+     *
+     * Also processes escaped quotes inside the text.
+     *
+     * Note: This method is taken directly from local_amos as it is highly tested and robust.
+     *
+     * @param string $text value obtained by token_get_all()
+     * @return string value without quotes
+     */
+    protected function decapsulate(string $text): string {
+
+        if (strlen($text) < 2) {
+            throw new moodle_exception('Parsing error. Expected T_CONSTANT_ENCAPSED_STRING in decapsulate()');
+        }
+
+        if (substr($text, 0, 1) == "'" and substr($text, -1) == "'") {
+            // Single quoted string.
+            $text = trim($text, "'");
+            $text = str_replace("\'", "'", $text);
+            $text = str_replace('\\\\', '\\', $text);
+            return $text;
+
+        } else if (substr($text, 0, 1) == '"' and substr($text, -1) == '"') {
+            // Double quoted string.
+            $text = trim($text, '"');
+            $text = str_replace('\"', '"', $text);
+            $text = str_replace('\\\\', '\\', $text);
+            return $text;
+
+        } else {
+            throw new moodle_exception(
+                'Parsing error. Unexpected quotation in T_CONSTANT_ENCAPSED_STRING in decapsulate(): '.$text
+            );
+        }
+    }
+}

admin/tool/customlang/classes/output/renderer.php

@@ -57,8 +57,9 @@ class renderer extends \plugin_renderer_base {
     protected function render_tool_customlang_menu(\tool_customlang_menu $menu) {
         $output = '';
         foreach ($menu->get_items() as $item) {
-            $output .= $this->single_button($item->url, $item->title, $item->method);
+            $button = $this->single_button($item->url, $item->title, $item->method);
+            $output .= $this->box($button, 'menu');
         }
-        return $this->box($output, 'menu');
+        return $output;
     }
 }

admin/tool/customlang/cli/export.php

@@ -0,0 +1,135 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Export custom language strings to zip files.
+ *
+ * @package    tool_customlang
+ * @subpackage customlang
+ * @copyright  2020 Thomas Wedekind <thomas.wedekind@univie.ac.at>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+define('CLI_SCRIPT', true);
+
+require(__DIR__ . '/../../../../config.php');
+require_once("$CFG->libdir/clilib.php");
+require_once("$CFG->dirroot/$CFG->admin/tool/customlang/locallib.php");
+
+$usage = <<<EOF
+"Export custom language files to a target folder.
+Useful for uploading custom langstrings to AMOS or importing or syncing them to other moodle instances.
+
+Options:
+-l, --lang              Comma seperated language ids to export, default: all
+-c, --components        Comma seperated components to export, default: all
+-t, --target            Target to copy the zip files to, default: $CFG->tempdir/customlang
+-o, --overwrite         Overwrite existing files in the target folder.
+                            Note: If the target is not set, the files are always overwritten!
+-h, --help              Print out this help
+
+Examples:
+Export all custom language files to the default folder:
+\$ sudo -u www-data /usr/bin/php admin/tool/customlang/cli/export.php
+
+Export just the english files of moodle core and the activity 'quiz' in a subfolder in my home folder:
+\$ sudo -u www-data /usr/bin/php admin/tool/customlang/cli/export.php --lang='en' --components='moodle,quiz' --target='~/customdir'
+
+EOF;
+
+$dafaulttarget = "$CFG->tempdir/customlang/";
+
+// Now get cli options.
+list($options, $unrecognized) = cli_get_params(
+    [
+        'lang' => '',
+        'components' => '',
+        'target' => $dafaulttarget,
+        'overwrite' => false,
+        'help' => false,
+    ],
+    ['h' => 'help', 'c' => 'components', 't' => 'target', 'o' => 'overwrite']
+);
+
+if ($unrecognized) {
+    $unrecognized = implode("\n  ", $unrecognized);
+    cli_error(get_string('cliunknowoption', 'admin', $unrecognized));
+}
+
+if ($options['help']) {
+    echo $usage;
+    die;
+}
+if (!file_exists($options['target'])) {
+    mkdir($options['target'], 0777, true);
+}
+
+cli_writeln(get_string('cliexportheading', 'tool_customlang'));
+$langs = [];
+if ($options['lang']) {
+    $langs = explode(',', $options['lang']);
+} else {
+    // No language set. We export all installed languages.
+    $langs = array_keys(get_string_manager()->get_list_of_translations(true));
+}
+
+foreach ($langs as $lang) {
+    $filename = $options['target'] . get_string('exportzipfilename', 'tool_customlang', ['lang' => $lang]);
+    // If the file exists and we are not using the temp folder it requires an ovewrite.
+    if ($options['target'] != $dafaulttarget && file_exists($filename) && !$options['overwrite']) {
+        cli_problem(get_string('cliexportfileexists', 'tool_customlang', $lang));
+        continue;
+    }
+    cli_heading(get_string('cliexportstartexport', 'tool_customlang', $lang));
+    $langdir = tool_customlang_utils::get_localpack_location($lang);
+    if (!file_exists($langdir)) {
+        // No custom files set for this language set.
+        cli_writeln(get_string('cliexportnofilefoundforlang', 'tool_customlang', ['lang' => $lang]));
+        continue;
+    }
+    $zipper = get_file_packer();
+    $tempzip = tempnam($CFG->tempdir . '/', 'tool_customlang_export');
+    $filelist = [];
+    if ($options['components']) {
+        $components = explode(',', $options['components']);
+        foreach ($components as $component) {
+            $filepath = "$langdir/$component.php";
+            if (file_exists($filepath)) {
+                $filelist["$component.php"] = $filepath;
+            } else {
+                cli_problem(
+                    get_string('cliexportfilenotfoundforcomponent', 'tool_customlang', ['lang' => $lang, 'file' => $filepath])
+                );
+            }
+        }
+    } else {
+        $langfiles = scandir($langdir);
+        foreach ($langfiles as $file) {
+            if (substr($file, 0, 1) != '.') {
+                $filelist[$file] = "$langdir/$file";
+            }
+        }
+    }
+    if (empty($filelist)) {
+        cli_problem(get_string('cliexportnofilefoundforlang', 'tool_customlang', ['lang' => $lang]));
+        continue;
+    }
+    if ($zipper->archive_to_pathname($filelist, $filename)) {
+        cli_writeln(get_string('cliexportzipdone', 'tool_customlang', $filename));
+    } else {
+        cli_problem(get_string('cliexportzipfail', 'tool_customlang', $filename));
+    }
+}

admin/tool/customlang/cli/import.php

@@ -0,0 +1,204 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * CLI customlang import tool.
+ *
+ * @package    tool_customlang
+ * @copyright  2020 Ferran Recio <ferran@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+use tool_customlang\local\importer;
+use core\output\notification;
+
+define('CLI_SCRIPT', true);
+
+require(__DIR__ . '/../../../../config.php');
+require_once($CFG->dirroot.'/'.$CFG->admin.'/tool/customlang/locallib.php');
+require_once("$CFG->libdir/clilib.php");
+
+$usage =
+"Import lang customization.
+
+It can get a single file or a folder.
+If no lang is provided it will try to infere from the filename
+
+Options:
+--lang                  The target language (will get from filename if not provided)
+--source=path           File or folder of the custom lang files (zip or php files)
+--mode                  What string should be imported. Options are:
+                            - all: all string will be imported (default)
+                            - new: only string with no previous customisation
+                            - update: only strings already modified
+--checkin               Save strings to the language pack
+-h, --help              Print out this help
+
+Examples:
+\$ sudo -u www-data /usr/bin/php admin/tool/customlang/cli/import.php --lang=en --source=customlangs.zip
+
+\$ sudo -u www-data /usr/bin/php admin/tool/customlang/cli/import.php --source=/tmp/customlangs --checkin
+
+\$ sudo -u www-data /usr/bin/php admin/tool/customlang/cli/import.php --lang=en --source=/tmp/customlangs
+
+";
+
+list($options, $unrecognized) = cli_get_params(
+    [
+        'help' => false,
+        'lang' => false,
+        'source' => false,
+        'mode' => 'all',
+        'checkin' => false,
+    ],
+    ['h' => 'help']
+);
+
+if ($unrecognized) {
+    $unrecognized = implode("\n  ", $unrecognized);
+    cli_error(get_string('cliunknowoption', 'admin', $unrecognized));
+}
+
+if ($options['help']) {
+    cli_write($usage);
+    exit(0);
+}
+
+$source = $options['source'] ?? null;
+$lang = $options['lang'] ?? null;
+$modeparam = $options['mode'] ?? 'all';
+$checkin = $options['checkin'] ?? false;
+
+$modes = [
+    'all' => importer::IMPORTALL,
+    'update' => importer::IMPORTUPDATE,
+    'new' => importer::IMPORTNEW,
+];
+if (!isset($modes[$modeparam])) {
+    cli_error(get_string('climissingmode', 'tool_customlang'));
+}
+$mode = $modes[$modeparam];
+
+if (empty($source)) {
+    $source = $CFG->dataroot.'/temp/customlang';
+}
+
+if (!file_exists($source)) {
+    cli_error(get_string('climissingsource', 'tool_customlang'));
+}
+
+// Emulate normal session - we use admin account by default.
+cron_setup_user();
+
+// Get the file list.
+$files = [];
+$langfiles = [];
+
+if (is_file($source)) {
+    $files[] = $source;
+}
+if (is_dir($source)) {
+    $filelist = glob("$source/*");
+    foreach ($filelist as $filename) {
+        $files[] = "$filename";
+    }
+}
+
+$countfiles = 0;
+foreach ($files as $filepath) {
+    // Try to get the lang.
+    $filelang = $lang;
+    // Get component from filename.
+    $pathparts = pathinfo($filepath);
+    $filename = $pathparts['filename'];
+    $extension = $pathparts['extension'];
+    if ($extension == 'zip') {
+        if (!$filelang) {
+            // Try to get the lang from the filename.
+            if (strrpos($filename, 'customlang_') === 0) {
+                $parts = explode('_', $filename);
+                if (!empty($parts[1])) {
+                    $filelang = $parts[1];
+                }
+            }
+        }
+    } else if ($extension != 'php') {
+        // Ignore any other file extension.
+        continue;
+    }
+    if (empty($filelang)) {
+        cli_error(get_string('climissinglang', 'tool_customlang'));
+    }
+    if (!isset($langfiles[$filelang])) {
+        $langfiles[$filelang] = [];
+    }
+    $langfiles[$filelang][] = $filepath;
+    $countfiles ++;
+}
+
+if (!$countfiles) {
+    cli_error(get_string('climissingfiles', 'tool_customlang'));
+}
+
+foreach ($langfiles as $lng => $files) {
+    $importer = new importer($lng, $mode);
+    $storedfiles = [];
+    $fs = get_file_storage();
+
+    cli_heading(get_string('clifiles', 'tool_customlang', $lng));
+
+    foreach ($files as $file) {
+        // Generate a valid stored_file from this file.
+        $record = (object)[
+            'filearea' => 'draft',
+            'component' => 'user',
+            'filepath' => '/',
+            'itemid'   => file_get_unused_draft_itemid(),
+            'license'  => $CFG->sitedefaultlicense,
+            'author'   => '',
+            'filename' => clean_param(basename($file), PARAM_FILE),
+            'contextid' => \context_user::instance($USER->id)->id,
+            'userid' => $USER->id,
+        ];
+        cli_writeln($file);
+        $storedfiles[] = $fs->create_file_from_pathname($record, $file);
+    }
+    cli_writeln("");
+
+    // Import files.
+    cli_heading(get_string('cliimporting', 'tool_customlang', $modeparam));
+    $importer->import($storedfiles);
+    // Display logs.
+    $log = $importer->get_log();
+    if (empty($log)) {
+        cli_problem(get_string('clinolog', 'tool_customlang', $lng));
+    }
+    foreach ($log as $message) {
+        if ($message->errorlevel == notification::NOTIFY_ERROR) {
+            cli_problem($message->get_message());
+        } else {
+            cli_writeln($message->get_message());
+        }
+    }
+    // Do the checkin if necessary.
+    if ($checkin) {
+        tool_customlang_utils::checkin($lng);
+        cli_writeln(get_string('savecheckin', 'tool_customlang'));
+    }
+    cli_writeln("");
+}
+
+exit(0);

admin/tool/customlang/db/access.php

@@ -46,5 +46,14 @@ $capabilities = array(
             'manager' => CAP_ALLOW
         ),
     ),
+    /* allows the user to export the current language customization */
+    'tool/customlang:export' => array(
+        'riskbitmask' => RISK_CONFIG,
+        'captype' => 'read',
+        'contextlevel' => CONTEXT_SYSTEM,
+        'archetypes' => array(
+            'manager' => CAP_ALLOW
+        ),
+    ),
 
 );

admin/tool/customlang/db/upgrade.php

@@ -41,5 +41,11 @@ function xmldb_tool_customlang_upgrade($oldversion) {
     // Automatically generated Moodle v3.8.0 release upgrade line.
     // Put any upgrade step following this.
 
+    // Automatically generated Moodle v3.9.0 release upgrade line.
+    // Put any upgrade step following this.
+
+    // Automatically generated Moodle v3.10.0 release upgrade line.
+    // Put any upgrade step following this.
+
     return true;
 }

admin/tool/customlang/export.php

@@ -0,0 +1,68 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Performs the custom lang export.
+ *
+ * @package    tool_customlang
+ * @subpackage customlang
+ * @copyright  2020 Thomas Wedekind <thomas.wedekind@univie.ac.at>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+require(__DIR__ . '/../../../config.php');
+require_once($CFG->dirroot.'/'.$CFG->admin.'/tool/customlang/locallib.php');
+require_once($CFG->libdir.'/adminlib.php');
+
+global $PAGE, $CFG;
+
+require_login(SITEID, false);
+require_capability('tool/customlang:export', context_system::instance());
+
+$lng = required_param('lng', PARAM_LANG);
+
+admin_externalpage_setup('toolcustomlang', '', null,
+    new moodle_url('/admin/tool/customlang/import.php', ['lng' => $lng]));
+
+$form = new \tool_customlang\form\export(null, ['lng' => $lng]);
+
+if ($form->is_cancelled()) {
+    redirect('index.php');
+    die();
+} else if ($formdata = $form->get_data()) {
+    $tempzip = tempnam($CFG->tempdir . '/', 'tool_customlang_export');
+    $filelist = [];
+    foreach ($formdata->files as $file) {
+        $filepath = tool_customlang_utils::get_localpack_location($lng). '/' . $file;
+        if (file_exists($filepath)) {
+            $filelist[$file] = $filepath;
+        }
+    }
+    $zipper = new zip_packer();
+
+    if (!empty($filelist) && $zipper->archive_to_pathname($filelist, $tempzip)) {
+        // Filename include the lang name so the file can be imported with automatic language detection.
+        send_temp_file($tempzip, "customlang_$lng.zip");
+        die();
+    }
+}
+
+$output = $PAGE->get_renderer('tool_customlang');
+
+echo $output->header();
+echo $output->heading(get_string('pluginname', 'tool_customlang'));
+$form->display();
+echo $OUTPUT->footer();

admin/tool/customlang/filter_form.php

@@ -32,7 +32,6 @@ class tool_customlang_filter_form extends moodleform {
 
     function definition() {
         $mform = $this->_form;
-        $current = $this->_customdata['current'];
 
         $mform->addElement('header', 'filtersettings', get_string('filter', 'tool_customlang'));
 

admin/tool/customlang/import.php

@@ -0,0 +1,74 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Import custom lang files.
+ *
+ * @package    tool_customlang
+ * @subpackage customlang
+ * @copyright  2020 Ferran Recio <ferran@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+use tool_customlang\form\import;
+use tool_customlang\local\importer;
+
+require(__DIR__ . '/../../../config.php');
+require_once($CFG->dirroot.'/'.$CFG->admin.'/tool/customlang/locallib.php');
+require_once($CFG->libdir.'/adminlib.php');
+
+require_login(SITEID, false);
+require_capability('tool/customlang:edit', context_system::instance());
+
+$lng = required_param('lng', PARAM_LANG);
+
+admin_externalpage_setup('toolcustomlang', '', null,
+    new moodle_url('/admin/tool/customlang/import.php', ['lng' => $lng]));
+
+$output = $PAGE->get_renderer('tool_customlang');
+
+$form = new import(null, ['lng' => $lng]);
+if ($data = $form->get_data()) {
+    require_sesskey();
+
+    // Get the file from the users draft area.
+    $usercontext = context_user::instance($USER->id);
+    $fs = get_file_storage();
+    $files = $fs->get_area_files($usercontext->id, 'user', 'draft', $data->pack, 'id',
+        false);
+
+    // Send files to the importer.
+    $importer = new importer($data->lng, $data->importmode);
+    $importer->import($files);
+
+    echo $output->header();
+
+    // Display logs.
+    $log = $importer->get_log();
+    foreach ($log as $message) {
+        echo $output->notification($message->get_message(), $message->errorlevel);
+    }
+
+    // Show continue button.
+    echo $output->continue_button(new moodle_url('index.php', array('lng' => $lng)));
+
+} else {
+    echo $output->header();
+
+    $form->display();
+}
+
+echo $OUTPUT->footer();

admin/tool/customlang/index.php

@@ -35,6 +35,7 @@ require_capability('tool/customlang:view', context_system::instance());
 $action  = optional_param('action', '', PARAM_ALPHA);
 $confirm = optional_param('confirm', false, PARAM_BOOL);
 $lng     = optional_param('lng', '', PARAM_LANG);
+$next     = optional_param('next', 'edit', PARAM_ALPHA);
 
 admin_externalpage_setup('toolcustomlang');
 $langs = get_string_manager()->get_list_of_translations();
@@ -59,11 +60,10 @@ if ($action === 'checkout') {
     raise_memory_limit(MEMORY_EXTRA);
     tool_customlang_utils::checkout($lng, $progressbar);
 
-    echo $output->continue_button(new moodle_url('/admin/tool/customlang/edit.php', array('lng' => $lng)), 'get');
+    echo $output->continue_button(new moodle_url("/admin/tool/customlang/{$next}.php", array('lng' => $lng)), 'get');
     echo $output->footer();
     exit;
 }
-
 if ($action === 'checkin') {
     require_sesskey();
     require_capability('tool/customlang:edit', context_system::instance());
@@ -132,6 +132,21 @@ if (has_capability('tool/customlang:edit', context_system::instance())) {
             'method'    => 'post',
         );
     }
+    $menu['import'] = array(
+        'title'     => get_string('import', 'tool_customlang'),
+        'url'       => new moodle_url($PAGE->url, ['action' => 'checkout', 'lng' => $lng, 'next' => 'import']),
+        'method'    => 'post',
+    );
+}
+if (has_capability('tool/customlang:export', context_system::instance())) {
+    $langdir = tool_customlang_utils::get_localpack_location($lng);
+    if (check_dir_exists(dirname($langdir)) && count(glob("$langdir/*"))) {
+        $menu['export'] = [
+            'title'     => get_string('export', 'tool_customlang'),
+            'url'       => new moodle_url("/admin/tool/customlang/export.php", ['lng' => $lng]),
+            'method'    => 'post',
+        ];
+    }
 }
 echo $output->render(new tool_customlang_menu($menu));
 

admin/tool/customlang/lang/en/tool_customlang.php

@@ -30,13 +30,30 @@ $string['checkin'] = 'Save strings to language pack';
 $string['checkout'] = 'Open language pack for editing';
 $string['checkoutdone'] = 'Language pack loaded';
 $string['checkoutinprogress'] = 'Loading language pack';
+$string['cliexportfileexists'] = 'File for {$a->lang} already exists, skipping. If you want to overwrite add the --override=true option.';
+$string['cliexportheading'] = 'Starting to export lang files.';
+$string['cliexportnofilefoundforlang'] = 'No file found to export. Skipping export for this language.';
+$string['cliexportfilenotfoundforcomponent'] = 'File {$a->filepath} not found for language {$a->lang}. Skipping this file.';
+$string['cliexportstartexport'] = 'Exporting language {$a}';
+$string['cliexportzipdone'] = 'Zip created: {$a}';
+$string['cliexportzipfail'] = 'Cannot create zip {$a}';
+$string['clifiles'] = 'Files to import into {$a}';
+$string['cliimporting'] = 'Import files string (mode {$a})';
+$string['clinolog'] = 'Nothing to import into {$a}';
+$string['climissinglang'] = 'Missing language';
+$string['climissingfiles'] = 'Missing valid files';
+$string['climissingmode'] = 'Missing or invalid mode (valid is all, new or update)';
+$string['climissingsource'] = 'Missing file or folder';
 $string['confirmcheckin'] = 'You are about to save modifications to your local language pack. This will export the customised strings from the translator into your site data directory and your site will start using the modified strings. Press \'Continue\' to proceed with saving.';
 $string['customlang:edit'] = 'Edit local translation';
+$string['customlang:export'] = 'Export local translation';
 $string['customlang:view'] = 'View local translation';
+$string['export'] = 'Export custom strings';
+$string['exportfilter'] = 'Select component(s) to export';
 $string['filter'] = 'Filter strings';
 $string['filtercomponent'] = 'Show strings of these components';
 $string['filtercustomized'] = 'Customised only';
-$string['filtermodified'] = 'Modified only';
+$string['filtermodified'] = 'Modified in this session only';
 $string['filteronlyhelps'] = 'Help only';
 $string['filtershowstrings'] = 'Show strings';
 $string['filterstringid'] = 'String identifier';
@@ -45,11 +62,24 @@ $string['headingcomponent'] = 'Component';
 $string['headinglocal'] = 'Local customisation';
 $string['headingstandard'] = 'Standard text';
 $string['headingstringid'] = 'String';
+$string['import'] = 'Import custom strings';
+$string['import_mode'] = 'Import mode';
+$string['import_new'] = 'Create only strings without local customisation';
+$string['import_update'] = 'Update only strings with local customisation';
+$string['import_all'] = 'Create or update all strings from the component(s)';
+$string['importfile'] = 'Import file';
+$string['langpack'] = 'Language component(s)';
 $string['markinguptodate'] = 'Marking the customisation as up-to-date';
 $string['markinguptodate_help'] = 'The customised translation may get outdated if either the English original or the master translation has modified since the string was customised on your site. Review the customised translation. If you find it up-to-date, click the checkbox. Edit it otherwise.';
 $string['markuptodate'] = 'mark as up-to-date';
 $string['modifiedno'] = 'There are no modified strings to save.';
 $string['modifiednum'] = 'There are {$a} modified strings. Do you wish to save these changes to your local language pack?';
+$string['nolocallang'] = 'No local strings found.';
+$string['notice_ignorenew'] = 'Ignoring string {$a->component}/{$a->stringid} because it is not customised.';
+$string['notice_ignoreupdate'] = 'Ignoring string {$a->component}/{$a->stringid} because it is already defined.';
+$string['notice_inexitentstring'] = 'String {$a->component}/{$a->stringid} not found.';
+$string['notice_missingcomponent'] = 'Missing component {$a->component}.';
+$string['notice_success'] = 'String {$a->component}/{$a->stringid} updated successfully.';
 $string['nostringsfound'] = 'No strings found, please modify the filter settings';
 $string['placeholder'] = 'Placeholders';
 $string['placeholder_help'] = 'Placeholders are special statements like `{$a}` or `{$a->something}` within the string. They are replaced with a value when the string is actually printed.

admin/tool/customlang/locallib.php

@@ -243,7 +243,7 @@ class tool_customlang_utils {
      * @param string $lang language code
      * @return string full path
      */
-    protected static function get_localpack_location($lang) {
+    public static function get_localpack_location($lang) {
         global $CFG;
 
         return $CFG->langlocalroot.'/'.$lang.'_local';

admin/tool/customlang/templates/translator.mustache

@@ -59,7 +59,7 @@
     <input type="hidden" name="sesskey" value="{{{ sesskey }}}">
     <input type="hidden" name="p" value="{{ currentpage }}">
 
-    <fieldset class="m-a-1 m-3">
+    <fieldset class="m-3">
         <button type="submit" name="savecontinue" class="btn btn-secondary">
             {{#str}}savecontinue, tool_customlang{{/str}}
         </button>
@@ -70,7 +70,7 @@
 
     <div class="list-group">
         <div class="container-fluid d-none d-md-block list-group-item border-bottom-0">
-            <div class="row-fluid">
+            <div class="row">
                 <div class="col-sm-4 col-md-2">
                     <strong>{{#str}}headingcomponent, tool_customlang{{/str}}</strong>
                 </div>
@@ -81,7 +81,7 @@
                     <strong>{{#str}}headingstandard, tool_customlang{{/str}}</strong>
                 </div>
                 <div class="col-sm-12 col-md-6">
-                    <span class="p-l-1 pl-3">
+                    <span class="pl-3">
                         <strong>{{#str}}headinglocal, tool_customlang{{/str}}</strong>
                     </span>
                 </div>
@@ -96,7 +96,7 @@
                 {{#outdated}}list-group-item-warning{{/outdated}}
                 {{#modified}}list-group-item-info{{/modified}}"
             >
-            <div class="row-fluid ">
+            <div class="row">
                 <div class="col-sm-4 col-md-2">
                     <div class="d-md-none">
                         <strong>{{#str}}headingcomponent, tool_customlang{{/str}}</strong>
@@ -129,8 +129,8 @@
                         <strong>{{#str}}headinglocal, tool_customlang{{/str}}</strong>
                     </div>
                     <div class="py-2 py-md-0 px-md-3">
-                        <textarea class="form-control w-100 border-box" name="cust[{{id}}]" cols="40" rows="3">{{{ local }}}</textarea>
-
+                        <label for="{{id}}" class="sr-only sr-only-focusable">{{{ component }}}/{{{ stringid }}}</label>
+                        <textarea class="form-control w-100 border-box" id="{{id}}" name="cust[{{id}}]" cols="40" rows="3">{{{ local }}}</textarea>
                         {{#checkupdated}}
                         <div class="uptodatewrapper">
                             <div class="form-check">
@@ -147,7 +147,7 @@
     {{/strings}}
     </div>
 
-    <fieldset class="m-a-1 m-3">
+    <fieldset class="m-3">
         <button type="submit" name="savecontinue" class="btn btn-secondary">
             {{#str}}savecontinue, tool_customlang{{/str}}
         </button>