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migratepersonal.php
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migratepersonal.php
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<?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 migrated personal blogs from a 1.9 system
* These reside in dataroot - provides means to delete imported data files
*
* @package mod
* @subpackage oublog
* @copyright 2012 The open University
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
require_once(dirname(__FILE__) . '/../../config.php');
require_once($CFG->dirroot . '/auth/sams_soap/auth.php');
require_once($CFG->dirroot . '/mod/oublog/locallib.php');
require_once($CFG->dirroot . '/mod/oublog/lib.php');
require_login();
$context = context_system::instance();
require_capability('moodle/site:config', $context);
$datadir = $CFG->dataroot . '/oublog/migration';
$action = optional_param('action', 'NONE', PARAM_ALPHA);
$PAGE->set_context($context);
$PAGE->set_url('/mod/oublog/migratepersonal.php', array('action' => $action));
// Setup form for uploading zip files.
require_once("$CFG->libdir/formslib.php");
require_once("$CFG->libdir/uploadlib.php");
class importpersonal extends moodleform {
public function definition() {
$mform =& $this->_form;
$mform->addElement('filepicker', 'attachment', 'Import 1.9 data zip', null, array('accepted_types' => '*.zip'));
$this->add_action_buttons(false, 'Import');
}
}
$form = new importpersonal();
if ($data = $form->get_data()) {
// Upload file.
@raise_memory_limit(MEMORY_EXTRA);
@set_time_limit(0);
$file = $form->save_temp_file('attachment');
output('', true);
$fp = get_file_packer();
// Check file is vaild.
$files = $fp->list_files($file);
output('', true);
if (!isset($files[0]->pathname) || strpos($files[0]->pathname, 'pb') !== 0) {
print_error('Invalid migration zip file.');
}
$fp->extract_to_pathname($file, $datadir);
unlink($file);
output('Unzipped file ready for importing');
echo $OUTPUT->continue_button($PAGE->url);
exit;
}
print $OUTPUT->header();
print $OUTPUT->heading('Import migrated personal blog data');
if ($action == 'DELETE') {
// Delete an attempt folder.
require_sesskey();
$name = required_param('name', PARAM_PATH);
$dirname = $datadir . '/' . $name;
if (!file_exists($dirname) || $name == '' || strpos($name, 'pb') === false) {
print_error('Directory does not exist.');
}
if (optional_param('confirm', false, PARAM_BOOL)) {
if (fulldelete($dirname)) {
print 'Folder deleted.';
}
} else {
$link = $CFG->wwwroot . '/mod/oublog/migratepersonal.php';
$params = "?action=DELETE&name=$name&confirm=1&sesskey=" . sesskey();
print $OUTPUT->confirm('Are you sure you want to delete?', $link . $params, $link);
}
} else if ($action == 'GO') {
require_sesskey();
$name = required_param('name', PARAM_PATH);
$dirname = $datadir . '/' . $name;
if (!file_exists($dirname) || $name == '' || strpos($name, 'pb') === false) {
print_error('Directory does not exist.');
}
if (optional_param('confirm', false, PARAM_BOOL)) {
// Process the folder.
@raise_memory_limit(MEMORY_EXTRA);
@set_time_limit(0);
migrate_backup($dirname);
} else {
if (!file_exists($dirname . '/success.txt') || !file_exists($dirname . '/oublog.xml')) {
print_error('Data no good. Missing key files.');
}
// File checks/info.
$doc = new DOMDocument();
$doc->load($dirname . '/oublog.xml');
$instances = $doc->getElementsByTagName('INSTANCE');
print '<p>' . $instances->length . ' instances in dataset.</p>';
if (file_exists($dirname . '/imported.xml')) {
$doc = new DOMDocument();
$doc->load($dirname . '/imported.xml');
$tags = $doc->getElementsByTagName('instance');
print '<p>Have processed ' . $tags->length . ' previously.</p>';
}
$link = $CFG->wwwroot . '/mod/oublog/migratepersonal.php';
$params = "?action=GO&name=$name&confirm=1&sesskey=" . sesskey();
$form = $OUTPUT->confirm('You cannot undo this (it will attempt to rollback DB on error). Continue?',
$link . $params, $link);
// Add in server image/link match switching.
$form = str_replace('<input type="submit" value="Continue" />',
'<input id="acct" name="acct" type="checkbox">Images point to Acct?</input><br />
<input name="kill" type="checkbox" checked="checked">Trial (rollback transactions)?</input><br />
<label for="total">Instances to process in this run:</label>
<select id="total" name="total">
<option value="0">All available</option>
<option value="500">500</option>
<option value="1000">1000</option>
<option value="5000">5000</option>
</select><br />
<input name="ignore" type="checkbox">Re-process instances already added? (Really shouldn\'t select this)</input><br />
<input name="tagsonly" type="checkbox">Fix already imported posts tags (and nothing else)</input><br />
<input type="submit" value="Continue" />', $form);
$form .= '<p>Select checkbox when images and urls in data set are pointing to learnacct not live server.</p>
<p>Only select to fix tags when a version of the migration script where they were not imported correctly was used.</p>
<p>Once successfully added an instance will not be processed again and will be skipped.</p>';
echo $form;
}
}
if ($action == 'NONE') {
// SHOW MAIN INTERFACE.
// Show number of personal blog instances.
if (!$blog = $DB->get_record('oublog', array('global' => 1))) {
print_error('globalblogmissing', 'oublog');
}
$bloginsts = $DB->get_record_sql('SELECT COUNT(id) as count FROM {oublog_instances} WHERE oublogid = ?',
array($blog->id));
print "<p>There are <strong>$bloginsts->count</strong> personal blog instances on the system at present";
print '<br />Imported instances will not override their settings - posts will be added to existing instances</p>';
$form->display();
// Display list of previous attempts and provide some management of these.
$attemps = array();
// Get folder info.
if (file_exists($datadir)) {
$folders = glob($datadir . '/pb*', GLOB_ONLYDIR);
foreach ($folders as $folder) {
$info = new stdClass();
$info->path = $folder;
$info->folder = substr($folder, strrpos($folder, '/') + 1);
$info->size = 0;
$info->size = @exec("du -b $folder | awk '{print $1}'");
$info->date = str_replace('pb', '', $info->folder);
$info->ok = file_exists($folder . '/success.txt') ? 'OK' : 'Failed';
$attemps[] = $info;
}
}
// Now show.
print '<div id="existing"><p>Previous backups:</p>';
foreach ($attemps as $attempt) {
print '<p>' . userdate($attempt->date) . ' : ' . formatbytes($attempt->size) . ' (' . $attempt->ok . ') ';
// Delete.
print '<a href="' . $CFG->wwwroot . '/mod/oublog/migratepersonal.php?action=DELETE&name=' . $attempt->folder . '&sesskey=' . sesskey() . '">';
print $OUTPUT->pix_icon('t/delete', 'Delete') . '</a> ';
// Zip.
print '<a href="' . $CFG->wwwroot . '/mod/oublog/migratepersonal.php?action=GO&name=' . $attempt->folder . '&sesskey=' . sesskey() . '">';
print $OUTPUT->pix_icon('i/restore', 'Import data') . '</a>';
print '</p>';
}
print '</div>';
}
print $OUTPUT->footer();
exit;
/**
* Start the import of personal blog data
* @param string $dir path of directory containing backup data
*/
function migrate_backup($dir) {
global $DB, $CFG, $SOURCESERVER;
$SOURCESERVER = 'http://learn.open.ac.uk';
if (optional_param('acct', false, PARAM_BOOL)) {
$SOURCESERVER = 'http://learnacct.open.ac.uk';
}
if ($kill = optional_param('kill', false, PARAM_BOOL)) {
output('<b>Trial run</b>, will perform rollback on each instance.');
}
if ($tagsonly = optional_param('tagsonly', false, PARAM_BOOL)) {
output('<b>Tags only</b>, will only fix tags, not add posts.');
}
// Load in XML.
$doc = new DOMDocument();
$doc->load($dir . '/oublog.xml');
$instancetags = $doc->getElementsByTagName('INSTANCE');
output('Total = ' . $instancetags->length . ' instances ');
$total = required_param('total', PARAM_INT);
$max = $total == 0 ? $instancetags->length + 1 : $total;
output('Max instances to process: ' . $max);
// Get xml that stores old instance ID's of those instances already processed.
$donedoc = new DOMDocument();
$done = array();
$donetag = null;
if (!optional_param('ignore', false, PARAM_BOOL) && file_exists($dir . '/imported.xml')) {
$donedoc->load($dir . '/imported.xml');
$donestr = $donedoc->saveXML();
$donetag = $donedoc->getElementsByTagName('imported')->item(0);
$tags = $donetag->childNodes->item(0);
while ($tags != null) {
// Store ids in array using fast looping.
$done[$tags->nodeValue] = '';
$tags->parentNode->removeChild($tags);
$tags = $donetag->childNodes->item(0);
}
// Reinstate childnodes.
$donedoc->loadXML($donestr);
$donestr = null;
output('Have already processed ' . count($done) . ' instances');
} else {
$donedoc->appendChild($donedoc->createElement('imported'));
}
$donetag = $donedoc->getElementsByTagName('imported')->item(0);
$count = 0;
$instances = array();// Stores data (as object) about each instance in array.
$tags = $instancetags->item(0);
// Fast looping of node list by always accessing first tag (faster than foreach).
while ($tags != null && $count < $max) {
$info = childnodes_to_object($tags);
// Remove tag we just processed.
$tags->parentNode->removeChild($tags);
// Get the next tag to parse.
$tags = $instancetags->item(0);
// Have we processed this instance before? If so, skip.
if (isset($done[$info->id])) {
$info = null;
continue;
}
$instances[$info->id] = $info;
$info = null;
$count++;
}
// Throw away xml as no longer need.
$doc = null;
$instancetags = null;
$tags = null;
output("Ready to process $count instances");
// Process each blog instance - checking for existing user instance.
$blog = $DB->get_record('oublog', array('global' => 1), 'id', MUST_EXIST);
$blog->global = 1;
output('Got global blog record');
if (!$cm = get_coursemodule_from_instance('oublog', $blog->id)) {
print_error('invalidcoursemodule');
}
$blogcontext = context_module::instance($cm->id);
// Vars used to store blog user content xml data.
$xmlcontent = new DOMDocument();
$xmlfilenum = -1;
$xpath = null;// Xpath for current content xml file.
foreach ($instances as &$instance) {
// Transaction per instance (ensure any existing are cleared up).
if (isset($trans) && ($trans instanceof moodle_transaction)) {
// Commit what has been done (errors will have rolled back already).
$DB->commit_delegated_transaction($trans);
$trans = null;
}
$trans = $DB->start_delegated_transaction();
try {
// Find/create user.
if (!$instance->newuserid = oublog_search_create_user($instance)) {
output("<b>Error: Skipping blog for $instance->username</b>");
continue;
}
// Work out new instance number (either from new or existing record).
if ($bloginst = $DB->get_record('oublog_instances',
array('oublogid' => $blog->id, 'userid' => $instance->newuserid), 'id')) {
$instance->newid = $bloginst->id;
$bloginst = null;
} else {
if ($tagsonly) {
output("<b>Error: Skipping create instance for {$instance->username} as in tag only mode</b>");
continue;
}
// Create instance.
$newbloginst = new stdClass();
$newbloginst->oublogid = $blog->id;
$newbloginst->userid = $instance->newuserid;
$newbloginst->name = $instance->name;
$newbloginst->summary = blogxml_isempty($instance->summary) ? '' : $instance->summary;
$newbloginst->summary = oublog_decode_perbloglinks($newbloginst->summary, $xpath);
$newbloginst->accesstoken = $instance->accesstoken;
$newbloginst->views = $instance->views;
if (!($instance->newid = $DB->insert_record('oublog_instances', $newbloginst))) {
output("<b>Failed to add blog instance $instance->name</b>");
continue;
}
$newbloginst = null;
// Migrate any mystuff images in summary.
if (strpos($instance->summary, '@@PLUGINFILE@@')
|| stripos($instance->summary, $SOURCESERVER . '/pix/smartpix.php/ou/s/')) {
$updaterec = new stdClass();
$updaterec->id = $instance->newid;
$updaterec->summary = oublog_add_files($instance->summary, $dir, $blogcontext->id,
'summary', $instance->newid);
$DB->update_record('oublog_instances', $updaterec);
$updaterec = null;
}
}
output('Finished setup blog instance for ' . $instance->username . ' :new id=' . $instance->newid);
// What is XML file for current instance, load if not current one.
$instfilenum = get_filenumber($instance->id);
if ($instfilenum != $xmlfilenum) {
// Load our XML into current var.
if (!$xmlcontent->load($dir . '/i' . $instfilenum . '.xml')) {
output('<b>Error: Failed to load user data</b> file number ' . $instfilenum);
continue;
}
$xmlfilenum = $instfilenum;
$xpath = new DOMXPath($xmlcontent);
// Get data from XML into vars for quick access.
$alllinks = array();
$linktags = $xmlcontent->getElementsByTagName('LINK');
foreach ($linktags as $l) {
$linkob = childnodes_to_object($l);
if (!isset($alllinks[$linkob->oubloginstancesid])) {
$alllinks[$linkob->oubloginstancesid] = array();
}
$alllinks[$linkob->oubloginstancesid][] = $linkob;
$linkob = null;
}
$linktags = null;
if ($tagsonly) {
$alllinks = array();// Ignore any links in tag fix mode;
}
$allusers = array();
$usertags = $xmlcontent->getElementsByTagName('USER');
foreach ($usertags as $t) {
$allusers[$t->getAttribute('id')] = childnodes_to_object($t);
}
$usertags = null;
$allposts = array();
$posttags = $xmlcontent->getElementsByTagName('POST');
$tag = $posttags->item(0);
// Fast looping for posts as probably the most tags.
while ($tag != null) {
$linkob = childnodes_to_object($tag);
$tag->parentNode->removeChild($tag);
$tag = $posttags->item(0);
if (!isset($linkob->oubloginstancesid)) {
continue;
}
if (!isset($allposts[$linkob->oubloginstancesid])) {
$allposts[$linkob->oubloginstancesid] = array();
}
$allposts[$linkob->oubloginstancesid][] = $linkob;
$linkob = null;
}
$posttags = null;
$alltags = array();
$tagtags = $xmlcontent->getElementsByTagName('TAG');
foreach ($tagtags as $l) {
$linkob = childnodes_to_object($l);
if (!isset($linkob->postid)) {
continue;
}
if (!isset($alltags[$linkob->postid])) {
$alltags[$linkob->postid] = array();
}
$alltags[$linkob->postid][] = $linkob;
$linkob = null;
}
$tagtags = null;
$alledits = array();
$edittags = $xmlcontent->getElementsByTagName('EDIT');
foreach ($edittags as $l) {
$linkob = childnodes_to_object($l);
if (!isset($linkob->postid)) {
continue;
}
if (!isset($alledits[$linkob->postid])) {
$alledits[$linkob->postid] = array();
}
$alledits[$linkob->postid][] = $linkob;
$linkob = null;
}
$edittags = null;
if ($tagsonly) {
$alledits = array();// Ignore any edits in tag fix mode;
}
$allcomments = array();
$commenttags = $xmlcontent->getElementsByTagName('COMMENT');
foreach ($commenttags as $l) {
$linkob = childnodes_to_object($l);
if (!isset($linkob->postid)) {
continue;
}
if (!isset($allcomments[$linkob->postid])) {
$allcomments[$linkob->postid] = array();
}
$allcomments[$linkob->postid][] = $linkob;
$linkob = null;
}
$commenttags = null;
if ($tagsonly) {
$allcomments = array();// Ignore any comments in tag fix mode;
}
output('Loaded user data file ' . $xmlfilenum);
}
// Store posts info for this instance (used in link checks).
$postinfo = array();
if (isset($allposts[$instance->id])) {
// Create a clone of the array as it contains objects...
$postinfo = serialize($allposts[$instance->id]);
$postinfo = unserialize($postinfo);
}
// Create instance links.
// $links = $xpath->query("/DATA/LINKS/LINK[OUBLOGINSTANCESID=$instance->id]");
$links = array();
if (isset($alllinks[$instance->id])) {
$links = $alllinks[$instance->id];
}
$linksa = array();
// Sort by SORTORDER - so lowest first.
foreach ($links as $newlink) {
// Create new link object and add to our new array.
// $newlink = childnodes_to_object($link);
$newlink->oubloginstancesid = $instance->newid;
$newlink->oublogid = $blog->id;
unset($newlink->id);
if (!isset($newlink->sortorder)) {
$newlink->sortorder = 0;
}
$linksa[] = $newlink;
}
$links = null;
// Sort by SORTORDER - so lowest first.
usort($linksa, 'oublog_sort_links');
foreach ($linksa as $link) {
// Create link.
$link->url = oublog_decode_perbloglinks($link->url, $xpath, $postinfo, $instance->userid);
if (!oublog_add_link($link)) {
output("Error: Failed to create link for blog:$instance->newid");
}
}
$linksa = null;
// End of link creation code.
output('Finished links');
output('Processing posts');
// PROCESS Blog posts.
$instance->postmapping = array();// Store old + new ids.
// $posts = $xpath->query("/DATA/POSTS/POST[OUBLOGINSTANCESID=$instance->id]");
$posts = array();
if (isset($allposts[$instance->id])) {
$posts = $allposts[$instance->id];
}
output(count($posts) . ' posts to process');
foreach ($posts as $newpost) {
// Sort out post object ready to save.
// $newpost = childnodes_to_object($post);
$oldid = $newpost->id;
unset($newpost->id);
$newpost->groupid = 0;// Just in case!
$newpost->oubloginstancesid = $instance->newid;
if (!is_null($newpost->deletedby)) {
if ($tagsonly) {
continue;// Don't update deleted post tags.
}
if ($newpost->deletedby == $instance->userid) {
// Most of the time will be blog user.
$newpost->deletedby = $instance->newuserid;
} else {
// Find mapped user id in this system.
// $users = $xpath->query("/DATA/USERS/USER[@id=$newpost->deletedby]");
$users = isset($allusers[$newpost->deletedby]) ? $allusers[$newpost->deletedby] : false;
if (!$users) {
$newpost->deletedby = false;
} else {
$newpost->deletedby = oublog_search_create_user($users);
}
if ($newpost->deletedby == false) {
output("Error: Failed to get/make user id for deletedby, old post id: $oldid");
$newpost->deletedby = $instance->newuserid;
}
}
}
if (!$tagsonly) {
if (!is_null($newpost->lasteditedby)) {
if ($newpost->lasteditedby == $instance->userid) {
// Most of the time will be blog user.
$newpost->lasteditedby = $instance->newuserid;
} else {
// Find mapped user id in this system.
// $users = $xpath->query("/DATA/USERS/USER[@id=$newpost->lasteditedby]");
$users = isset($allusers[$newpost->lasteditedby]) ? $allusers[$newpost->lasteditedby] : false;
if (!$users) {
$newpost->lasteditedby = false;
} else {
$newpost->lasteditedby = oublog_search_create_user($users);
}
if ($newpost->lasteditedby == false) {
output("Error: Failed to get/make user id for edited by, old post id: $oldid");
$newpost->lasteditedby = $instance->newuserid;
}
}
}
$newpost->message = oublog_decode_perbloglinks($newpost->message, $xpath, $postinfo, $instance->userid);
if (!$postid = $DB->insert_record('oublog_posts', $newpost)) {
output("<b>Error: Failed to create post, old id = $oldid</b>");
continue;
}
} else {
// Tag fix only mode. Search for post previously created to use as $postid.
if (!$post = $DB->get_record_sql('select id, message from {oublog_posts} where oubloginstancesid
= :oubloginstancesid and timeposted = :timeposted and title = :title and deletedby is null',
array('oubloginstancesid' => $instance->newid, 'timeposted' => $newpost->timeposted,
'title' => $newpost->title))) {
output("<b>Error: Failed to find post (TAG FIX), old id = $oldid</b>");
continue;
}
$postid = $post->id;
$newpost->message = $post->message;// Ensure matches that on system.
// Store existing tags so any extra added not removed.
$tagnames = oublog_get_post_tags($post);
$post = null;
}
$instance->postmapping[$oldid] = $postid;// Record old/new id mapping.
output('', true);// Output dots.
// Migrate any mystuff images in message.
if (!$tagsonly && (strpos($newpost->message, '@@PLUGINFILE@@')
|| stripos($newpost->message, $SOURCESERVER . '/pix/smartpix.php/ou/s/'))) {
$updaterec = new stdClass();
$updaterec->id = $postid;
$updaterec->message = oublog_add_files($newpost->message, $dir, $blogcontext->id,
'message', $postid);
$DB->update_record('oublog_posts', $updaterec);
$updaterec = null;
}
// Add post tags (also used in search to save DB query).
$newpost->tags = array();
// $tags = $xpath->query("/DATA/TAGS/TAG[POSTID=$oldid]");
if (!$tagsonly || empty($tagnames)) {
$tagnames = array();
}
$tags = array();
if (isset($alltags[$oldid])) {
$tags = $alltags[$oldid];
}
foreach ($tags as $tag) {
$tagnames[] = $tag->tagname;
}
if (!empty($tagnames)) {
$tagnames = array_unique(array_filter($tagnames));
oublog_update_item_tags($instance->newid, $postid, $tagnames);
$newpost->tags = $tagnames;
$tagnames = null;
}
if (is_null($newpost->deletedby)) {
// Update search.
$newpost->id = $postid;
$newpost->userid = $instance->newuserid;
oublog_search_update($newpost, $cm);
output('', true);
}
$newpost = null;
}
$posts = null;
// End Blog post processing.
output('Finished Posts');
// From now on all data is got from looping through postmapping array each time.
// PROCESS Blog EDITS.
foreach ($instance->postmapping as $oldpostid => $newpostid) {
// $edits = $xpath->query("/DATA/EDITS/EDIT[POSTID=$oldpostid]");
$edits = array();
if (isset($alledits[$oldpostid])) {
$edits = $alledits[$oldpostid];
}
foreach ($edits as $newedit) {
// Sort out edit object ready to save.
// $newedit = childnodes_to_object($edit);
unset($newedit->id);
$newedit->postid = $newpostid;
if ($newedit->userid == $instance->userid) {
// Most of the time will be blog user.
$newedit->userid = $instance->newuserid;
} else {
// Find mapped user id in this system.
// $users = $xpath->query("/DATA/USERS/USER[@id=$newedit->userid]");
$users = isset($allusers[$newedit->userid]) ? $allusers[$newedit->userid] : false;
if (!$users) {
$newedit->userid = false;
} else {
$newedit->userid = oublog_search_create_user($users);
}
if ($newedit->userid == false) {
output("Error: Failed to get/make user id for edit rec, old post id: $oldpostid");
$newedit->userid = $instance->newuserid;
}
}
$newedit->oldmessage = oublog_decode_perbloglinks($newedit->oldmessage, $xpath, $postinfo, $instance->userid);
output('', true);// Output dots.
// Migrate any mystuff images in message.
if (strpos($newedit->oldmessage, '@@PLUGINFILE@@')
|| stripos($newedit->oldmessage, $SOURCESERVER . '/pix/smartpix.php/ou/s/')) {
$newedit->oldmessage = oublog_add_files($newedit->oldmessage, $dir, $blogcontext->id,
'message', $newpostid);
}
if (!$newid = $DB->insert_record('oublog_edits', $newedit)) {
output("Error: Failed to create edit for old post id: $oldpostid");
continue;
}
$newedit = null;
}
$edits = null;
}
output('Finished edits');
// End Blog EDITS processing.
// Process blog comments (Standard + Approved only).
foreach ($instance->postmapping as $oldpostid => $newpostid) {
// $comments = $xpath->query("/DATA/COMMENTS/COMMENT[POSTID=$oldpostid]");
$comments = array();
if (isset($allcomments[$oldpostid])) {
$comments = $allcomments[$oldpostid];
}
foreach ($comments as $newcomment) {
// Sort out edit object ready to save.
// $newcomment = childnodes_to_object($comment);
$newcomment->postid = $newpostid;
if (!blogxml_isempty($newcomment->userid)) {
if ($newcomment->userid == $instance->userid) {
// Most of the time will be blog user.
$newcomment->userid = $instance->newuserid;
} else {
// Find mapped user id in this system.
// $users = $xpath->query("/DATA/USERS/USER[@id='$newcomment->userid']");
$users = isset($allusers[$newcomment->userid]) ? $allusers[$newcomment->userid] : false;
if (!$users || empty($users)) {
$newcomment->userid = false;
} else {
$newcomment->userid = oublog_search_create_user($users);
}
if ($newcomment->userid == false) {
output("Error: Failed to get/make user id for comment, old id: $newcomment->id file:$xmlfilenum");
continue;// Skip this comment.
}
}
}
if (!blogxml_isempty($newcomment->deletedby)) {
if ($newcomment->deletedby == $instance->userid) {
// Most of the time will be blog user.
$newcomment->deletedby = $instance->newuserid;
} else {
// Find mapped user id in this system.
// $users = $xpath->query("/DATA/USERS/USER[@id=$newcomment->deletedby]");
$users = isset($allusers[$newcomment->deletedby]) ? $allusers[$newcomment->deletedby] : false;
if (!$users) {
$newcomment->deletedby = false;
} else {
$newcomment->deletedby = oublog_search_create_user($users);
}
if ($newcomment->deletedby == false) {
output("Error: Failed to get/make user id for comment deletedby, old id: $newcomment->id");
$newcomment->deletedby = $instance->newuserid;
}
}
}
$newcomment->message = oublog_decode_perbloglinks($newcomment->message, $xpath, $postinfo, $instance->userid);
unset($newcomment->id);
if (!$newid = $DB->insert_record('oublog_comments', $newcomment)) {
output("Error: Failed to create comment for old post id: $oldpostid");
continue;
}
output('', true);// Output dots.
// Migrate any mystuff images in message.
if (strpos($newcomment->message, '@@PLUGINFILE@@')
|| stripos($newcomment->message, $SOURCESERVER . '/pix/smartpix.php/ou/s/')) {
$updaterec = new stdClass();
$updaterec->id = $newid;
$updaterec->message = oublog_add_files($newcomment->message, $dir, $blogcontext->id,
'messagecomment', $newid);
$DB->update_record('oublog_comments', $updaterec);
$updaterec = null;
}
$newcomment = null;
}
$comments = null;
}
output('Finished comments');
// End comments.
// Commit everything in this instance.
if ($kill) {
throw new moodle_exception('kill');
} else {
// Commit and save that instance has been imported.
$trans->allow_commit();
$trans->dispose();
$donetag->appendChild($donedoc->createElement('instance', $instance->id));
if (!$donedoc->save($dir . '/imported.xml')) {
output('<b>Error saving xml record of instance, will be picked up next save</b>');
}
}
} catch (moodle_exception $e) {
output('<b>Code error:</b> ' . $e->debuginfo);
try {
output('Rollback transation');
$trans->rollback($e);
} catch (moodle_exception $e) {
output('<b>Code error:</b> ' . $e->debuginfo);
$trans = null;
continue;
} catch (Exception $e) {
output('<b>Code error:</b> ' . $e->debuginfo);
$trans = null;
continue;
}
} catch (Exception $e) {
output('<b>Code error:</b> ' . $e->debuginfo);
$trans->rollback($e);
$trans = null;
continue;
}
$trans = null;
}
output('<b>Finished</b>');
}
/**
* Searches for user based on username.
* Creates a new user if not exist, based on info sent.
* Mirrors SAMS SOAP user creation.
* @param object $info
* @return int new ID or false
*/
function oublog_search_create_user($info) {
global $DB, $CFG;
if (empty($info->username)) {
return false;
}
// Check our local static cache of users already processed.
static $users;
if (!isset($users)) {
$users = array();
} else if (!empty($users[$info->username])) {
return $users[$info->username];
}
// Does user exist in system?
if ($user = $DB->get_record('user', array('username' => $info->username), 'id')) {
$info->newuserid = $user->id;
} else {
// Create user record with min info - expecting it to be updated when user logs in.
$user = new stdClass();
$user->username = $info->username;
$user->firstname = !blogxml_isempty($info->firstname)
? $info->firstname : 'New';
$user->lastname = !blogxml_isempty($info->lastname)
? $info->lastname : 'User';
$user->idnumber = isset($info->idnumber) ? $info->idnumber : '';
$user->email = !blogxml_isempty($info->email)
? $info->email : '[email protected]';
if ($user->email == '[email protected]') {
$user->emailstop = 1;
}
$user->country = 'GB';
$user->mnethostid = $CFG->mnet_localhost_id;
$user->lang = $CFG->lang;
$user->confirmed = 1;
$user->auth = 'sams_soap';
$user->firstaccess = time();
$user->picture = 0;
$user->maildisplay = 0;
// Set a dummy password (we won't ever check it).
$user->password = hash_internal_user_password('SAMSsupplied');
$user->trackforums = 1;
try {
$user->id = $DB->insert_record('user', $user, true);
} catch (moodle_exception $e) {
output("<strong>Failed to add user $user->username</strong>");
return false;
}
// Add user to role.
try {
$auth = new auth_plugin_sams_soap();
$auth->assign_role($user);
} catch (moodle_exception $e) {
output("<strong>Failed to assign user role for $user->username<strong>");
}
$info->newuserid = $user->id;
$user = null;
}
$users[$info->username] = $info->newuserid;
return $info->newuserid;
}
/**
* Finds refs to images in text and adds files to DB and rewrite text content
* @param string $text - text to search/replace
* @param string $dir - dir to get images from
* @param int $contextid
* @param string $filearea - name of file area to add to
* @param int $itemid - number of item id to use in files table
*/
function oublog_add_files($text, $dir, $contextid, $filearea, $itemid) {
global $CFG, $OUTPUT, $SOURCESERVER;
if (strpos($text, '@@PLUGINFILE@@')) {
require_once($CFG->dirroot . '/lib/filestorage/file_storage.php');
static $knownfiles;
if (!isset($knownfiles)) {
$knownfiles = array();
}
$pattern = '#<img.*?src="(@@PLUGINFILE@@(.*?))"#';
preg_match_all($pattern, $text, $matches);
$filerecord = new stdClass();
$filerecord->filearea = $filearea;
$filerecord->itemid = $itemid;
$filerecord->contextid = $contextid;
$filerecord->component = 'mod_oublog';
$filerecord->filepath = '/';
$fs = get_file_storage();
for ($a = 0, $len = count($matches[2]); $a < $len; $a++) {
// Add MyStuff images in a folder based on user name.
$match = $matches[2][$a];
try {
$paths = explode('/', $match);
$filerecord->filename = array_pop($paths);
if (strpos($filerecord->filename, '.')) {
// Looks like we got filename OK so try and store, check if already done first.
if (!isset($knownfiles[$contextid . $filearea . $itemid . $filerecord->filename])) {
// Import file into system.
if (!$fs->file_exists($contextid, 'mod_oublog', $filearea, $itemid, '/', $filerecord->filename)) {
$fs->create_file_from_pathname($filerecord, $dir . $match);
// Store we've processed so no need to import again (saves 1 query).
$knownfiles[$contextid . $filearea . $itemid . $filerecord->filename] = 0;
}
}
// Replace full path to just filename for rewrite plugin urls.
$text = str_replace($match, '/' . $filerecord->filename, $text);
}
} catch (moodle_exception $e) {
// TODO clean up match if fail?
output('Failed to import file ' . $match . ' : ' . $e->getMessage());
}
}
$matches = null;
}
if (stripos($text, $SOURCESERVER . '/pix/smartpix.php/ou/s/')) {
// Search for hard-coded Emoticons and convert to local versions.
$pattern = '#<img.*?src="(' . $SOURCESERVER . '/pix/smartpix.php/ou/s/(.*?))"#';
preg_match_all($pattern, $text, $matches);
for ($a = 0, $len = count($matches[2]); $a < $len; $a++) {
// Add MyStuff images in a folder based on user name.
$match = $matches[2][$a];
$match = str_ireplace('.gif', '', $match);
$newurl = $OUTPUT->image_url('/s/' . $match);
$text = str_replace($matches[1][$a], $newurl, $text);
}
}
return $text;
}
/**
* Switches any encode backup links to 'proper' form.
* Will search for user info and add as needed.
* @param string $content
* @param xpath $xpath
*/
function oublog_decode_perbloglinks($content, $xpath, $userposts = null, $olduserid = null) {
global $CFG, $SOURCESERVER;
$result = $content;
if (strpos($content, '$@OUBLOGVIEWUSER') !== false) {
// Process blog links.
$searchstring = '/\$@(OUBLOGVIEWUSER)\*([0-9]+)@\$/';
preg_match_all($searchstring, $result, $foundset);
if ($foundset[0]) {
// Iterate over foundset[2]. They are the old_ids.
foreach ($foundset[2] as $old_id) {
// We get the needed variables here (stored in users in xml)
$users = $xpath->query("/DATA/USERS/USER[@id=$old_id]");
$newid = false;
if ($users->length != 0) {
$user = childnodes_to_object($users->item(0));
if (!empty($user->username)) {
$newid = urlencode($user->username);
}
}
// Update the link to its new location.
if (!empty($newid)) {
// Now replace it.
$result = str_replace("$@OUBLOGVIEWUSER*$old_id@$", $CFG->wwwroot.'/mod/oublog/view.php?u=' . $newid, $result);
} else {
// Can't find, leave it as original.
$result = str_replace("$@OUBLOGVIEWUSER*$old_id@$", $SOURCESERVER . '/mod/oublog/view.php?user=' . $old_id, $result);
}
}
}
}
if (strpos($content, '$@OUBLOGVIEWPOST') !== false) {
// Porcess post links.
$searchstring = '/\$@(OUBLOGVIEWPOST)\*([0-9]+)@\$/';
preg_match_all($searchstring, $result, $foundset);
if ($foundset[0]) {
// Iterate over foundset[2]. They are the old_ids.
foreach ($foundset[2] as $old_id) {
$newusername = false;
$newposttime = false;
//See if this user made the post refered to, if so use their details.
if ($userposts && $olduserid) {
foreach ($userposts as $post) {
if (isset($post->id) && $post->id == $old_id && !empty($post->timeposted)) {
$newposttime = $post->timeposted;
// We get the needed variables here (stored in users in xml).
$users = $xpath->query("/DATA/USERS/USER[@id={$olduserid}]");
if ($users->length != 0) {
$user = childnodes_to_object($users->item(0));
if (!empty($user->username)) {
$newusername = urlencode($user->username);
}
}
break;;
}
}
}
// Update the link to its new location.
if (!empty($newusername) && !empty($newposttime)) {
// Now replace it.
$posturl = new moodle_url('/mod/oublog/viewpost.php', array('u' => $newusername, 'time' => $newposttime, 'post' => 0));
$result = str_replace("$@OUBLOGVIEWPOST*$old_id@$", $posturl->out(false), $result);
} else {
// Can't find, leave it as original.
$result = str_replace("$@OUBLOGVIEWPOST*$old_id@$", $SOURCESERVER . '/mod/oublog/viewpost.php?post=' . $old_id, $result);
}
}
}
}
return $result;
}
// Used by link usort.
function oublog_sort_links($a, $b) {
if ($a->sortorder == $b->sortorder) {
return 0;
}
return ($a->sortorder < $b->sortorder) ? -1 : 1;
}
function childnodes_to_object(DOMElement $node) {
$node = clone $node;// Must clone or else original will have nodes removed.
// Add all child elements as properties.
$info = new stdClass();
// Fast looping of node list by always accessing first tag (faster than foreach).
$el = $node->childNodes->item(0);
while ($el != null) {
$elname = strtolower($el->nodeName);
if ($el->hasChildNodes() && !($el->childNodes->length == 1 && $el->childNodes->item(0)->nodeType == XML_TEXT_NODE)) {
$info->{$elname} = childnodes_to_object($el);
} else if ($el->nodeType != XML_TEXT_NODE) {
if ($el->nodeValue == '$@NULL@$') {
$info->{$elname} = null;
} else {
$info->{$elname} = $el->nodeValue;
}
}
$el->parentNode->removeChild($el);
$el = $node->childNodes->item(0);
}
return $info;
}
function formatbytes($bytes, $precision = 2) {
$units = array('B', 'KB', 'MB', 'GB', 'TB');
$bytes = max($bytes, 0);
$pow = floor(($bytes ? log($bytes) : 0) / log(1024));