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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/>.
/**
* @package moodlecore
* @subpackage backup-imscc
* @copyright 2011 Darko Miletic (dmiletic@moodlerooms.com)
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
defined('MOODLE_INTERNAL') or die('Direct access to this script is forbidden.');
class cc11_forum extends entities11 {
public function full_path ($path, $dir_sep = DIRECTORY_SEPARATOR) {
$token = '$IMS-CC-FILEBASE$';
$path = str_replace($token, '', $path);
if (is_string($path) && ($path != '')) {
$dir_sep;
$dot_dir = '.';
$up_dir = '..';
$length = strlen($path);
$rtemp = trim($path);
$start = strrpos($path, $dir_sep);
$can_continue = ($start !== false);
$result = $can_continue ? '' : $path;
$rcount = 0;
while ($can_continue) {
$dir_part = ($start !== false) ? substr($rtemp, $start + 1, $length - $start) : $rtemp;
$can_continue = ($dir_part !== false);
if ($can_continue) {
if ($dir_part != $dot_dir) {
if ($dir_part == $up_dir) {
$rcount++;
} else {
if ($rcount > 0) {
$rcount --;
} else {
$result = ($result == '') ? $dir_part : $dir_part . $dir_sep . $result;
}
}
}
$rtemp = substr($path, 0, $start);
$start = strrpos($rtemp, $dir_sep);
$can_continue = (($start !== false) || (strlen($rtemp) > 0));
}
}
}
return $result;
}
public function generate_node () {
cc2moodle::log_action('Creating Forum mods');
$response = '';
if (!empty(cc2moodle::$instances['instances'][MOODLE_TYPE_FORUM])) {
foreach (cc2moodle::$instances['instances'][MOODLE_TYPE_FORUM] as $instance) {
$response .= $this->create_node_course_modules_mod_forum($instance);
}
}
return $response;
}
private function create_node_course_modules_mod_forum ($instance) {
$sheet_mod_forum = cc112moodle::loadsheet(SHEET_COURSE_SECTIONS_SECTION_MODS_MOD_FORUM);
$topic_data = $this->get_topic_data($instance);
$result = '';
if (!empty($topic_data)) {
$find_tags = array('[#mod_instance#]',
'[#mod_forum_title#]',
'[#mod_forum_intro#]',
'[#date_now#]');
$replace_values = array($instance['instance'],
//To be more true to the actual forum name we use only forum title
self::safexml($topic_data['title']),
self::safexml($topic_data['description']),
time());
$result = str_replace($find_tags, $replace_values, $sheet_mod_forum);
}
return $result;
}
public function get_topic_data ($instance) {
$topic_data = '';
$topic_file = $this->get_external_xml($instance['resource_indentifier']);
if (!empty($topic_file)) {
$topic_file_path = cc2moodle::$path_to_manifest_folder . DIRECTORY_SEPARATOR . $topic_file;
$topic_file_dir = dirname($topic_file_path);
$topic = $this->load_xml_resource($topic_file_path);
if (!empty($topic)) {
$xpath = cc2moodle::newx_path($topic, cc112moodle::$forumns);
$topic_title = $xpath->query('/dt:topic/dt:title');
if ($topic_title->length > 0 && !empty($topic_title->item(0)->nodeValue)) {
$topic_title = $topic_title->item(0)->nodeValue;
} else {
$topic_title = 'Untitled Topic';
}
$topic_text = $xpath->query('/dt:topic/dt:text');
$topic_text = !empty($topic_text->item(0)->nodeValue) ? $this->update_sources($topic_text->item(0)->nodeValue, dirname($topic_file)) : '';
$topic_text = !empty($topic_text) ? str_replace("%24", "\$", $this->include_titles($topic_text)) : '';
if (!empty($topic_title)) {
$topic_data['title'] = $topic_title;
$topic_data['description'] = $topic_text;
}
}
$topic_attachments = $xpath->query('/dt:topic/dt:attachments/dt:attachment/@href');
if ($topic_attachments->length > 0) {
$attachment_html = '';
foreach ($topic_attachments as $file) {
$attachment_html .= $this->generate_attachment_html($this->full_path($file->nodeValue,'/'));
}
$topic_data['description'] = !empty($attachment_html) ? $topic_text . '<p>Attachments:</p>' . $attachment_html : $topic_text;
}
}
return $topic_data;
}
private function generate_attachment_html ($filename) {
$images_extensions = array('gif' , 'jpeg' , 'jpg' , 'jif' , 'jfif' , 'png' , 'bmp');
$fileinfo = pathinfo($filename);
if (in_array($fileinfo['extension'], $images_extensions)) {
return '<img src="$@FILEPHP@$/' . $filename . '" title="' . $fileinfo['basename'] . '" alt="' . $fileinfo['basename'] . '" /><br />';
} else {
return '<a href="$@FILEPHP@$/' . $filename . '" title="' . $fileinfo['basename'] . '" alt="' . $fileinfo['basename'] . '">' . $fileinfo['basename'] . '</a><br />';
}
return '';
}
}
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