From 4d9b4e97823f32f1ee00cb6f375a75334a263b87 Mon Sep 17 00:00:00 2001
From: Paul Nicholls <paul.nicholls@canterbury.ac.nz>
Date: Tue, 20 Nov 2012 11:59:51 +1300
Subject: [PATCH] MDL-32880: Add moodle1 backup converter for html block.

This converter processes the HTML block's content, migrating any referenced files.
---
 blocks/html/backup/moodle1/lib.php | 46 ++++++++++++++++++++++++++++++
 1 file changed, 46 insertions(+)
 create mode 100644 blocks/html/backup/moodle1/lib.php

diff --git a/blocks/html/backup/moodle1/lib.php b/blocks/html/backup/moodle1/lib.php
new file mode 100644
index 00000000000..d4a491f1c86
--- /dev/null
+++ b/blocks/html/backup/moodle1/lib.php
@@ -0,0 +1,46 @@
+<?php
+
+/**
+ * Provides support for the conversion of moodle1 backup to the moodle2 format
+ *
+ * @package    block_html
+ * @copyright  2012 Paul Nicholls
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+defined('MOODLE_INTERNAL') || die();
+
+/**
+ * Block conversion handler for html
+ */
+class moodle1_block_html_handler extends moodle1_block_handler {
+    private $fileman = null;
+    protected function convert_configdata(array $olddata) {
+        $instanceid = $olddata['id'];
+        $contextid  = $this->converter->get_contextid(CONTEXT_BLOCK, $olddata['id']);
+        $configdata = unserialize(base64_decode($olddata['configdata']));
+
+        // get a fresh new file manager for this instance
+        $this->fileman = $this->converter->get_file_manager($contextid, 'block_html');
+
+        // convert course files embedded in the block content
+        $this->fileman->filearea = 'content';
+        $this->fileman->itemid   = 0;
+        $configdata->text = moodle1_converter::migrate_referenced_files($configdata->text, $this->fileman);
+        $configdata->format = FORMAT_HTML;
+
+        return base64_encode(serialize($configdata));
+    }
+
+    protected function write_inforef_xml($newdata, $data) {
+        $this->open_xml_writer("course/blocks/{$data['name']}_{$data['id']}/inforef.xml");
+        $this->xmlwriter->begin_tag('inforef');
+        $this->xmlwriter->begin_tag('fileref');
+        foreach ($this->fileman->get_fileids() as $fileid) {
+            $this->write_xml('file', array('id' => $fileid));
+        }
+        $this->xmlwriter->end_tag('fileref');
+        $this->xmlwriter->end_tag('inforef');
+        $this->close_xml_writer();
+    }
+}
\ No newline at end of file