stronk7
819 lines
31 KiB
PHP
819 lines
31 KiB
PHP
<?PHP //$Id$
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//This file contains all the function needed in the backup/restore utility
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//except the mod-related funtions that are into every backuplib.php inside
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//every mod directory
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//Insert necessary category ids to backup_ids table
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function insert_category_ids ($course,$backup_unique_code) {
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global $CFG;
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$status = true;
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$status = execute_sql("INSERT INTO {$CFG->prefix}backup_ids
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(backup_code, table_name, old_id)
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SELECT DISTINCT '$backup_unique_code','quiz_categories',t.category
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FROM {$CFG->prefix}quiz_questions t,
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{$CFG->prefix}quiz_question_grades g,
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{$CFG->prefix}quiz q
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WHERE q.course = '$course' AND
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g.quiz = q.id AND
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g.question = t.id",false);
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return $status;
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}
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//Delete category ids from backup_ids table
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function delete_category_ids ($backup_unique_code) {
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global $CFG;
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$status = true;
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$status = execute_sql("DELETE FROM {$CFG->prefix}backup_ids
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WHERE backup_code = '$backup_unique_code'",false);
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return $status;
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}
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//Calculate the number of users to backup and put their ids in backup_ids
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//Return an array of info (name,value)
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function user_check_backup($course,$backup_unique_code,$backup_users) {
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//$backup_users=0-->all
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// 1-->course
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// 2-->needed-->NOT IMPLEMEMTED
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global $CFG;
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global $db;
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$count_users = 0;
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//Select all users from user
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$users = get_records ("user");
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//Iterate over users putting their roles
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foreach ($users as $user) {
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$user->info = "";
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//Is Admin in tables (not is_admin()) !!
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if (record_exists("user_admins","userid",$user->id)) {
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$user->info .= "admin";
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$user->role_admin = true;
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}
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//Is Course Creator in tables (not is_coursecreator()) !!
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if (record_exists("user_coursecreators","userid",$user->id)) {
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$user->info .= "coursecreator";
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$user->role_coursecreator = true;
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}
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//Is Teacher in tables (not is_teacher()) !!
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if (record_exists("user_teachers","course",$course,"userid",$user->id)) {
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$user->info .= "teacher";
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$user->role_teacher = true;
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}
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//Is Student in tables (not is_student()) !!
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if (record_exists("user_students","course",$course,"userid",$user->id)) {
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$user->info .= "student";
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$user->role_student = true;
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}
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//Now create the backup_id record
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$backupids_rec->backup_code = $backup_unique_code;
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$backupids_rec->table_name = "user";
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$backupids_rec->old_id = $user->id;
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$backupids_rec->info = $user->info;
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//Insert the record id. backup_users decide it.
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//When all users
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if ($backup_users == 0) {
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$status = insert_record("backup_ids",$backupids_rec,false);
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$count_users++;
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//When course users
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} else if ($backup_users == 1) {
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//Only if user has any role
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if ($backupids_rec->info) {
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$status = insert_record("backup_ids",$backupids_rec,false);
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$count_users++;
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}
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}
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}
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//Prepare Info
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//Gets the user data
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$info[0][0] = get_string("users");
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$info[0][1] = $count_users;
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return $info;
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}
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//Calculate the number of log entries to backup
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//Return an array of info (name,value)
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function log_check_backup($course) {
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global $CFG;
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//Execute the insert
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$status = execute_sql($sql_insert,false);
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//Now execute the select
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$ids = get_records_sql("SELECT DISTINCT l.id,l.course
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FROM {$CFG->prefix}log l
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WHERE l.course = '$course'");
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//Gets the user data
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$info[0][0] = get_string("logs");
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if ($ids) {
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$info[0][1] = count($ids);
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} else {
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$info[0][1] = 0;
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}
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return $info;
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}
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//Calculate the number of user files to backup
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//Under $CFG->dataroot/users
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//and put them (their path) in backup_ids
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//Return an array of info (name,value)
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function user_files_check_backup($course,$backup_unique_code) {
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global $CFG;
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$rootdir = $CFG->dataroot."/users";
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//Check if directory exists
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if (is_dir($rootdir)) {
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$coursedirs = get_directory_list($rootdir);
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foreach ($coursedirs as $dir) {
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//Extracts user id from file path
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$tok = strtok($dir,"/");
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if ($tok) {
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$userid = $tok;
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} else {
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$tok = "";
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}
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//Insert them into backup_files
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$status = execute_sql("INSERT INTO {$CFG->prefix}backup_files
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(backup_code, file_type, path, old_id)
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VALUES
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('$backup_unique_code','user','$dir','$userid')",false);
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}
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}
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//Now execute the select
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$ids = get_records_sql("SELECT DISTINCT b.path, b.old_id
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FROM {$CFG->prefix}backup_files b
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WHERE backup_code = '$backup_unique_code' AND
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file_type = 'user'");
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//Gets the user data
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$info[0][0] = get_string("files");
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if ($ids) {
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$info[0][1] = count($ids);
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} else {
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$info[0][1] = 0;
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}
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return $info;
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}
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//Calculate the number of course files to backup
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//under $CFG->dataroot/$course, except $CFG->moddata
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//and put them (their path) in backup_ids
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//Return an array of info (name,value)
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function course_files_check_backup($course,$backup_unique_code) {
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global $CFG;
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$rootdir = $CFG->dataroot."/$course";
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//Check if directory exists
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if (is_dir($rootdir)) {
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$coursedirs = get_directory_list($rootdir,$CFG->moddata);
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foreach ($coursedirs as $dir) {
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//Insert them into backup_files
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$status = execute_sql("INSERT INTO {$CFG->prefix}backup_files
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(backup_code, file_type, path)
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VALUES
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('$backup_unique_code','course','$dir')",false);
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}
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}
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//Now execute the select
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$ids = get_records_sql("SELECT DISTINCT b.path, b.old_id
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FROM {$CFG->prefix}backup_files b
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WHERE backup_code = '$backup_unique_code' AND
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file_type = 'course'");
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//Gets the user data
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$info[0][0] = get_string("files");
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if ($ids) {
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$info[0][1] = count($ids);
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} else {
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$info[0][1] = 0;
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}
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return $info;
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}
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//Delete old data in backup tables (if exists)
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//Two days seems to be apropiate
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function backup_delete_old_data() {
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global $CFG;
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//Change this if you want !!
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$days = 2;
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//End change this
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$seconds = $days * 24 * 60 * 60;
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$delete_from = time()-$seconds;
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//Now delete from tables
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$status = execute_sql("DELETE FROM {$CFG->prefix}backup_ids
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WHERE backup_code < '$delete_from'",false);
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if ($status) {
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$status = execute_sql("DELETE FROM {$CFG->prefix}backup_files
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WHERE backup_code < '$delete_from'",false);
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}
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//Now, delete old directory (if exists)
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if ($status) {
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$status = backup_delete_old_dirs($delete_from);
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}
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return($status);
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}
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//Function to delete dirs/files into temp/backup directory
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//older than $delete_from
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function backup_delete_old_dirs($delete_from) {
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global $CFG;
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$status = true;
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$list = get_directory_list($CFG->dataroot."/temp/backup", "", false);
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foreach ($list as $file) {
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$file_path = $CFG->dataroot."/temp/backup/".$file;
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$moddate = filemtime($file_path);
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if ($status and $moddate < $delete_from) {
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//If directory, recurse
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if (is_dir($file_path)) {
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$status = delete_dir_contents($file_path);
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//There is nothing, delete the directory itself
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if ($status) {
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$status = rmdir($file_path);
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}
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//If file
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} else {
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unlink("$file_path");
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}
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}
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}
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return $status;
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}
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//Function to check if a directory exists
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//and, optionally, create it
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function check_dir_exists($dir,$create=false) {
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global $CFG;
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$status = true;
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if(!is_dir($dir)) {
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if (!$create) {
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$status = false;
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} else {
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$status = mkdir ($dir,$CFG->directorypermissions);
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}
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}
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return $status;
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}
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//Function to check and create the needed dir to
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//save all the backup
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function check_and_create_backup_dir($backup_unique_code) {
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global $CFG;
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$status = check_dir_exists($CFG->dataroot."/temp",true);
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if ($status) {
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$status = check_dir_exists($CFG->dataroot."/temp/backup",true);
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}
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if ($status) {
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$status = check_dir_exists($CFG->dataroot."/temp/backup/".$backup_unique_code,true);
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}
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return $status;
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}
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//Function to delete all the directory contents recursively
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//Copied from admin/delete.php
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function delete_dir_contents ($rootdir) {
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$dir = opendir($rootdir);
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$status = true;
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while ($file = readdir($dir)) {
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if ($file != "." and $file != "..") {
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$fullfile = "$rootdir/$file";
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if (filetype($fullfile) == "dir") {
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delete_dir_contents($fullfile);
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if (!rmdir($fullfile)) {
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$status = false;
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}
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} else {
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if (!unlink("$fullfile")) {
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$status = false;
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}
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}
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}
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}
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closedir($dir);
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return $status;
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}
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//Function to clear (empty) the contents of the backup_dir
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//Copied from admin/delete.php
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function clear_backup_dir($backup_unique_code) {
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global $CFG;
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$rootdir = $CFG->dataroot."/temp/backup/".$backup_unique_code;
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//Delete recursively
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$status = delete_dir_contents($rootdir);
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return $status;
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}
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//Function to create, open and write header of the xml file
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function backup_open_xml($backup_unique_code) {
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global $CFG;
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$status = true;
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//Open for writing
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$file = $CFG->dataroot."/temp/backup/".$backup_unique_code."/moodle.xml";
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$backup_file = fopen($file,"w");
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//Writes the header
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$status = fwrite ($backup_file,"<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n");
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if ($status) {
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$status = fwrite ($backup_file,start_tag("MOODLE_BACKUP",0,true));
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}
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if ($status) {
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return $backup_file;
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} else {
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return false;
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}
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}
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//Close the file
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function backup_close_xml($backup_file) {
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$status = fwrite ($backup_file,end_tag("MOODLE_BACKUP",0,true));
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return fclose($backup_file);
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}
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//Return the xml start tag
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function start_tag($tag,$level=0,$endline=false) {
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if ($endline) {
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$endchar = "\n";
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} else {
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$endchar = "";
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}
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return str_repeat(" ",$level*2)."<".strtoupper($tag).">".$endchar;
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}
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//Return the xml end tag
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function end_tag($tag,$level=0,$endline=true) {
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if ($endline) {
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$endchar = "\n";
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} else {
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$endchar = "";
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}
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return str_repeat(" ",$level*2)."</".strtoupper($tag).">".$endchar;
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}
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//Return the start tag, the contents and the end tag
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function full_tag($tag,$level=0,$endline=true,$content,$to_utf=true) {
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$st = start_tag($tag,$level,$endline);
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$co="";
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if ($to_utf) {
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$co = utf8_encode(htmlspecialchars($content));
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} else {
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$co = htmlspecialchars($content);
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}
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$et = end_tag($tag,0,true);
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return $st.$co.$et;
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}
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//Prints General info about the course
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//name, moodle_version (internal and release), backup_version, date, info in file...
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function backup_general_info ($bf,$preferences) {
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global $CFG;
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fwrite ($bf,start_tag("INFO",1,true));
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//The name of the backup
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fwrite ($bf,full_tag("NAME",2,false,$preferences->backup_name));
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//The moodle_version
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fwrite ($bf,full_tag("MOODLE_VERSION",2,false,$preferences->moodle_version));
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fwrite ($bf,full_tag("MOODLE_RELEASE",2,false,$preferences->moodle_release));
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//The backup_version
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fwrite ($bf,full_tag("BACKUP_VERSION",2,false,$preferences->backup_version));
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fwrite ($bf,full_tag("BACKUP_RELEASE",2,false,$preferences->backup_release));
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//The date
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fwrite ($bf,full_tag("DATE",2,false,$preferences->backup_unique_code));
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//Te includes tag
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fwrite ($bf,start_tag("DETAILS",2,true));
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//Now, go to mod element of preferences to print its status
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foreach ($preferences->mods as $element) {
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//Calculate info
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$included = "false";
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$userinfo = "false";
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if ($element->backup) {
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$included = "true";
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if ($element->userinfo) {
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$userinfo = "true";
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}
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}
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//Prints the mod start
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fwrite ($bf,start_tag("MOD",3,true));
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fwrite ($bf,full_tag("NAME",4,false,$element->name));
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fwrite ($bf,full_tag("INCLUDED",4,false,$included));
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fwrite ($bf,full_tag("USERINFO",4,false,$userinfo));
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//Print the end
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fwrite ($bf,end_tag("MOD",3,true));
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}
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//The user in backup
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if ($preferences->backup_users == 1) {
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fwrite ($bf,full_tag("USERS",3,false,"course"));
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} else {
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fwrite ($bf,full_tag("USERS",3,false,"all"));
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}
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//The logs in backup
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if ($preferences->backup_logs == 1) {
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fwrite ($bf,full_tag("LOGS",3,false,"true"));
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} else {
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fwrite ($bf,full_tag("LOGS",3,false,"false"));
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}
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//The user files
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if ($preferences->backup_user_files == 1) {
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fwrite ($bf,full_tag("USERFILES",3,false,"true"));
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} else {
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fwrite ($bf,full_tag("USERFILES",3,false,"false"));
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}
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//The course files
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if ($preferences->backup_course_files == 1) {
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fwrite ($bf,full_tag("COURSEFILES",3,false,"true"));
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} else {
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fwrite ($bf,full_tag("COURSEFILES",3,false,"false"));
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}
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fwrite ($bf,end_tag("DETAILS",2,true));
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$status = fwrite ($bf,end_tag("INFO",1,true));
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return $status;
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}
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//Prints course's general info (table course)
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function backup_course_start ($bf,$preferences) {
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global $CFG;
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$status = true;
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//Course open tag
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fwrite ($bf,start_tag("COURSE",1,true));
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//Get info from course
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$course=false;
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if ($courses = get_records("course","id",$preferences->backup_course)) {
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$course = $courses[$preferences->backup_course];
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}
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if ($course) {
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//Prints course info
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fwrite ($bf,full_tag("ID",2,false,$course->id));
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//Obtain the category
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$category = false;
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if ($categories = get_records("course_categories","id","$course->category")) {
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$category = $categories[$course->category];
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}
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if ($category) {
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//Prints category info
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fwrite ($bf,start_tag("CATEGORY",2,true));
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fwrite ($bf,full_tag("ID",3,false,$course->category));
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fwrite ($bf,full_tag("NAME",3,false,$category->name));
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fwrite ($bf,end_tag("CATEGORY",2,true));
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}
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//Continues with the course
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fwrite ($bf,full_tag("PASSWORD",2,false,$course->password));
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fwrite ($bf,full_tag("FULLNAME",2,false,$course->fullname));
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fwrite ($bf,full_tag("SHORTNAME",2,false,$course->shortname));
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fwrite ($bf,full_tag("SUMMARY",2,false,$course->summary));
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fwrite ($bf,full_tag("FORMAT",2,false,$course->format));
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fwrite ($bf,full_tag("NEWSITEMS",2,false,$course->newsitems));
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fwrite ($bf,full_tag("TEACHER",2,false,$course->teacher));
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fwrite ($bf,full_tag("TEACHERS",2,false,$course->teachers));
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fwrite ($bf,full_tag("STUDENT",2,false,$course->student));
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fwrite ($bf,full_tag("STUDENTS",2,false,$course->students));
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fwrite ($bf,full_tag("GUEST",2,false,$course->guest));
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fwrite ($bf,full_tag("STARDATE",2,false,$course->stardate));
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fwrite ($bf,full_tag("NUMSECTIONS",2,false,$course->numsections));
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fwrite ($bf,full_tag("SHOWRECENT",2,false,$course->showrecent));
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fwrite ($bf,full_tag("MARKER",2,false,$course->marker));
|
|
fwrite ($bf,full_tag("TIMECREATED",2,false,$course->timecreated));
|
|
$status = fwrite ($bf,full_tag("TIMEMODIFIED",2,false,$course->timemodified));
|
|
} else {
|
|
$status = false;
|
|
}
|
|
|
|
return $status;
|
|
}
|
|
|
|
//Prints course's end tag
|
|
function backup_course_end ($bf,$preferences) {
|
|
|
|
//Course end tag
|
|
$status = fwrite ($bf,end_tag("COURSE",1,true));
|
|
|
|
return $status;
|
|
|
|
}
|
|
|
|
//Prints course's sections info (table course_sections)
|
|
function backup_course_sections ($bf,$preferences) {
|
|
|
|
global $CFG;
|
|
|
|
$status = true;
|
|
|
|
|
|
//Get info from sections
|
|
$section=false;
|
|
if ($sections = get_records("course_sections","course",$preferences->backup_course,"section")) {
|
|
//Section open tag
|
|
fwrite ($bf,start_tag("SECTIONS",2,true));
|
|
//Iterate over every section (ordered by section)
|
|
foreach ($sections as $section) {
|
|
//Begin Section
|
|
fwrite ($bf,start_tag("SECTION",3,true));
|
|
fwrite ($bf,full_tag("ID",4,false,$section->id));
|
|
fwrite ($bf,full_tag("NUMBER",4,false,$section->section));
|
|
fwrite ($bf,full_tag("SUMMARY",4,false,$section->summary));
|
|
fwrite ($bf,full_tag("VISIBLE",4,false,$section->visible));
|
|
//Now print the mods in section
|
|
backup_course_modules ($bf,$preferences,$section);
|
|
//End section
|
|
fwrite ($bf,end_tag("SECTION",3,true));
|
|
}
|
|
//Section close tag
|
|
$status = fwrite ($bf,end_tag("SECTIONS",2,true));
|
|
}
|
|
|
|
return $status;
|
|
|
|
}
|
|
|
|
//Prints course's modules info (table course_modules)
|
|
//Only for selected mods in preferences
|
|
function backup_course_modules ($bf,$preferences,$section) {
|
|
|
|
global $CFG;
|
|
|
|
$status = true;
|
|
|
|
$first_record = true;
|
|
|
|
//Now print the mods in section
|
|
//Extracts mod id from sequence
|
|
$tok = strtok($section->sequence,",");
|
|
while ($tok) {
|
|
//Get module's type
|
|
$moduletype = get_module_type ($preferences->backup_course,$tok);
|
|
//Check if we've selected to backup that type
|
|
if ($moduletype and $preferences->mods[$moduletype]->backup) {
|
|
$selected = true;
|
|
} else {
|
|
$selected = false;
|
|
}
|
|
|
|
if ($selected) {
|
|
//Gets course_module data from db
|
|
$course_module = get_records ("course_modules","id",$tok);
|
|
//If it's the first, pring MODS tag
|
|
if ($first_record) {
|
|
fwrite ($bf,start_tag("MODS",4,true));
|
|
$first_record = false;
|
|
}
|
|
//Print mod info from course_modules
|
|
fwrite ($bf,start_tag("MOD",5,true));
|
|
//Save neccesary info to backup_ids
|
|
fwrite ($bf,full_tag("ID",6,false,$tok));
|
|
fwrite ($bf,full_tag("TYPE",6,false,$moduletype));
|
|
fwrite ($bf,full_tag("INSTANCE",6,false,$course_module[$tok]->instance));
|
|
fwrite ($bf,full_tag("DELETED",6,false,$course_module[$tok]->deleted));
|
|
fwrite ($bf,full_tag("SCORE",6,false,$course_module[$tok]->score));
|
|
fwrite ($bf,full_tag("VISIBLE",6,false,$course_module[$tok]->visible));
|
|
fwrite ($bf,end_tag("MOD",5,true));
|
|
}
|
|
//check for next
|
|
$tok = strtok(",");
|
|
}
|
|
|
|
//Si ha habido modulos, final de MODS
|
|
if (!$first_record) {
|
|
$status =fwrite ($bf,end_tag("MODS",4,true));
|
|
}
|
|
|
|
return $status;
|
|
}
|
|
|
|
//Returns the module type of a course_module's id in a course
|
|
function get_module_type ($courseid,$moduleid) {
|
|
|
|
global $CFG;
|
|
|
|
$results = get_records_sql ("SELECT cm.id, m.name
|
|
FROM {$CFG->prefix}course_modules cm,
|
|
{$CFG->prefix}modules m
|
|
WHERE cm.course = '$courseid' AND
|
|
cm.id = '$moduleid' AND
|
|
m.id = cm.module");
|
|
|
|
if ($results) {
|
|
$name = $results[$moduleid]->name;
|
|
} else {
|
|
$name = false;
|
|
}
|
|
|
|
|
|
return $name;
|
|
}
|
|
|
|
//Print users to xml
|
|
//Only users previously calculated in backup_ids will output
|
|
//
|
|
function backup_user_info ($bf,$preferences) {
|
|
|
|
global $CFG;
|
|
|
|
$status = true;
|
|
|
|
$users = get_records_sql("SELECT u.old_id, u.table_name,u.info
|
|
FROM {$CFG->prefix}backup_ids u
|
|
WHERE u.backup_code = '$preferences->backup_unique_code' AND
|
|
u.table_name = 'user'");
|
|
|
|
//If we have users to backup
|
|
if ($users) {
|
|
//Begin Users tag
|
|
fwrite ($bf,start_tag("USERS",2,true));
|
|
//With every user
|
|
foreach ($users as $user) {
|
|
//Get user data from table
|
|
$user_data = get_record("user","id",$user->old_id);
|
|
//Begin User tag
|
|
fwrite ($bf,start_tag("USER",3,true));
|
|
//Output all user data
|
|
fwrite ($bf,full_tag("ID",4,false,$user_data->id));
|
|
fwrite ($bf,full_tag("CONFIRMED",4,false,$user_data->confirmed));
|
|
fwrite ($bf,full_tag("DELETED",4,false,$user_data->deleted));
|
|
fwrite ($bf,full_tag("USERNAME",4,false,$user_data->username));
|
|
fwrite ($bf,full_tag("PASSWORD",4,false,$user_data->password));
|
|
fwrite ($bf,full_tag("IDNUMBER",4,false,$user_data->idnumber));
|
|
fwrite ($bf,full_tag("FIRSTNAME",4,false,$user_data->firsname));
|
|
fwrite ($bf,full_tag("LASTNAME",4,false,$user_data->lastname));
|
|
fwrite ($bf,full_tag("EMAIL",4,false,$user_data->email));
|
|
fwrite ($bf,full_tag("ICQ",4,false,$user_data->icq));
|
|
fwrite ($bf,full_tag("PHONE1",4,false,$user_data->phone1));
|
|
fwrite ($bf,full_tag("PHONE2",4,false,$user_data->phone2));
|
|
fwrite ($bf,full_tag("INSTITUTION",4,false,$user_data->institution));
|
|
fwrite ($bf,full_tag("DEPARTMENT",4,false,$user_data->department));
|
|
fwrite ($bf,full_tag("ADDRESS",4,false,$user_data->address));
|
|
fwrite ($bf,full_tag("CITY",4,false,$user_data->city));
|
|
fwrite ($bf,full_tag("COUNTRY",4,false,$user_data->country));
|
|
fwrite ($bf,full_tag("LANG",4,false,$user_data->lang));
|
|
fwrite ($bf,full_tag("TIMEZONE",4,false,$user_data->timezone));
|
|
fwrite ($bf,full_tag("FIRSTACCESS",4,false,$user_data->firstaccess));
|
|
fwrite ($bf,full_tag("LASTACCESS",4,false,$user_data->lastaccess));
|
|
fwrite ($bf,full_tag("LASTLOGIN",4,false,$user_data->lastlogin));
|
|
fwrite ($bf,full_tag("CURRENTLOGIN",4,false,$user_data->currentlogin));
|
|
fwrite ($bf,full_tag("LASTIP",4,false,$user_data->lastIP));
|
|
fwrite ($bf,full_tag("SECRET",4,false,$user_data->secret));
|
|
fwrite ($bf,full_tag("PICTURE",4,false,$user_data->picture));
|
|
fwrite ($bf,full_tag("URL",4,false,$user_data->url));
|
|
fwrite ($bf,full_tag("DESCRIPTION",4,false,$user_data->description));
|
|
fwrite ($bf,full_tag("MAILFORMAT",4,false,$user_data->mailformat));
|
|
fwrite ($bf,full_tag("MAILDISPLAY",4,false,$user_data->maildisplay));
|
|
fwrite ($bf,full_tag("HTMLEDITOR",4,false,$user_data->htmleditor));
|
|
fwrite ($bf,full_tag("TIMEMODIFIED",4,false,$user_data->timemodified));
|
|
|
|
//Output every user role (with its associated info)
|
|
$user->isadmin = strpos($user->info,"admin");
|
|
$user->iscoursecreator = strpos($user->info,"coursecreator");
|
|
$user->isteacher = strpos($user->info,"teacher");
|
|
$user->isstudent = strpos($user->info,"student");
|
|
if ($user->isadmin!==false or
|
|
$user->iscoursecreator!==false or
|
|
$user->isteacher!==false or
|
|
$user->isstudent!==false) {
|
|
//Begin ROLES tag
|
|
fwrite ($bf,start_tag("ROLES",4,true));
|
|
//PRINT ROLE INFO
|
|
//Admins
|
|
if ($user->isadmin!==false) {
|
|
//Print ROLE start
|
|
fwrite ($bf,start_tag("ROLE",5,true));
|
|
//Print Role info
|
|
fwrite ($bf,full_tag("TYPE",6,false,"admin"));
|
|
//Print ROLE end
|
|
fwrite ($bf,end_tag("ROLE",5,true));
|
|
}
|
|
//CourseCreator
|
|
if ($user->iscoursecreator!==false) {
|
|
//Print ROLE start
|
|
fwrite ($bf,start_tag("ROLE",5,true));
|
|
//Print Role info
|
|
fwrite ($bf,full_tag("TYPE",6,false,"coursecreator"));
|
|
//Print ROLE end
|
|
fwrite ($bf,end_tag("ROLE",5,true));
|
|
}
|
|
//Teacher
|
|
if ($user->isteacher!==false) {
|
|
//Print ROLE start
|
|
fwrite ($bf,start_tag("ROLE",5,true));
|
|
//Print Role info
|
|
fwrite ($bf,full_tag("TYPE",6,false,"teacher"));
|
|
//Get specific info for teachers
|
|
$tea = get_record("user_teachers","userid",$user->old_id,"course",$preferences->backup_course);
|
|
fwrite ($bf,full_tag("AUTHORITY",6,false,$tea->authority));
|
|
fwrite ($bf,full_tag("TEA_ROLE",6,false,$tea->role));
|
|
//Print ROLE end
|
|
fwrite ($bf,end_tag("ROLE",5,true));
|
|
}
|
|
//Student
|
|
if ($user->isstudent!==false) {
|
|
//Print ROLE start
|
|
fwrite ($bf,start_tag("ROLE",5,true));
|
|
//Print Role info
|
|
fwrite ($bf,full_tag("TYPE",6,false,"student"));
|
|
//Get specific info for students
|
|
$stu = get_record("user_students","userid",$user->old_id,"course",$preferences->backup_course);
|
|
fwrite ($bf,full_tag("TIMESTART",6,false,$stu->timestart));
|
|
fwrite ($bf,full_tag("TIMEEND",6,false,$stu->timeend));
|
|
fwrite ($bf,full_tag("TIME",6,false,$stu->time));
|
|
//Print ROLE end
|
|
fwrite ($bf,end_tag("ROLE",5,true));
|
|
}
|
|
|
|
|
|
//End ROLES tag
|
|
fwrite ($bf,end_tag("ROLES",4,true));
|
|
}
|
|
//End User tag
|
|
fwrite ($bf,end_tag("USER",3,true));
|
|
}
|
|
//End Users tag
|
|
fwrite ($bf,end_tag("USERS",2,true));
|
|
} else {
|
|
//There isn't users. Impossible !!
|
|
$status = false;
|
|
}
|
|
|
|
return $status;
|
|
}
|
|
|
|
//Backup log info (time ordered)
|
|
function backup_log_info($bf,$preferences) {
|
|
|
|
global $CFG;
|
|
|
|
$status = true;
|
|
|
|
$logs = get_records ("log","course",$preferences->backup_course);
|
|
|
|
//We have logs
|
|
if ($logs) {
|
|
//Pring logs header
|
|
fwrite ($bf,start_tag("LOGS",2,true));
|
|
//Iterate
|
|
foreach ($logs as $log) {
|
|
//See if it is a valid module to backup
|
|
if ($log->module == "course" or
|
|
$log->module == "user") {
|
|
//Begin log tag
|
|
fwrite ($bf,start_tag("LOG",3,true));
|
|
|
|
//Output log data
|
|
fwrite ($bf,full_tag("ID",4,false,$log->id));
|
|
fwrite ($bf,full_tag("TIME",4,false,$log->time));
|
|
fwrite ($bf,full_tag("USERID",4,false,$log->userid));
|
|
fwrite ($bf,full_tag("IP",4,false,$log->ip));
|
|
fwrite ($bf,full_tag("MODULE",4,false,$log->module));
|
|
fwrite ($bf,full_tag("ACTION",4,false,$log->action));
|
|
fwrite ($bf,full_tag("URL",4,false,$log->url));
|
|
fwrite ($bf,full_tag("INFO",4,false,$log->info));
|
|
|
|
//End log data
|
|
fwrite ($bf,end_tag("LOG",3,true));
|
|
}
|
|
}
|
|
$status = fwrite ($bf,end_tag("LOGS",2,true));
|
|
}
|
|
|
|
|
|
|
|
return $status;
|
|
}
|
|
?>
|