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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/>.
- /**
- * Form for editing HTML block instances.
- *
- * @package block_html
- * @copyright 1999 onwards Martin Dougiamas (http://dougiamas.com)
- * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
- */
- class block_html extends block_base {
- function init() {
- $this->title = get_string('pluginname', 'block_html');
- }
- function has_config() {
- return true;
- }
- function applicable_formats() {
- return array('all' => true);
- }
- function specialization() {
- $this->title = isset($this->config->title) ? format_string($this->config->title) : format_string(get_string('newhtmlblock', 'block_html'));
- }
- function instance_allow_multiple() {
- return true;
- }
- function get_content() {
- global $CFG;
- require_once($CFG->libdir . '/filelib.php');
- if ($this->content !== NULL) {
- return $this->content;
- }
- $filteropt = new stdClass;
- $filteropt->overflowdiv = true;
- if ($this->content_is_trusted()) {
- // fancy html allowed only on course, category and system blocks.
- $filteropt->noclean = true;
- }
- $this->content = new stdClass;
- $this->content->footer = '';
- if (isset($this->config->text)) {
- // rewrite url
- $this->config->text = file_rewrite_pluginfile_urls($this->config->text, 'pluginfile.php', $this->context->id, 'block_html', 'content', NULL);
- // Default to FORMAT_HTML which is what will have been used before the
- // editor was properly implemented for the block.
- $format = FORMAT_HTML;
- // Check to see if the format has been properly set on the config
- if (isset($this->config->format)) {
- $format = $this->config->format;
- }
- $this->content->text = format_text($this->config->text, $format, $filteropt);
- } else {
- $this->content->text = '';
- }
- unset($filteropt); // memory footprint
- return $this->content;
- }
- /**
- * Serialize and store config data
- */
- function instance_config_save($data, $nolongerused = false) {
- global $DB;
- $config = clone($data);
- // Move embedded files into a proper filearea and adjust HTML links to match
- $config->text = file_save_draft_area_files($data->text['itemid'], $this->context->id, 'block_html', 'content', 0, array('subdirs'=>true), $data->text['text']);
- $config->format = $data->text['format'];
- parent::instance_config_save($config, $nolongerused);
- }
- function instance_delete() {
- global $DB;
- $fs = get_file_storage();
- $fs->delete_area_files($this->context->id, 'block_html');
- return true;
- }
- /**
- * Copy any block-specific data when copying to a new block instance.
- * @param int $fromid the id number of the block instance to copy from
- * @return boolean
- */
- public function instance_copy($fromid) {
- $fromcontext = context_block::instance($fromid);
- $fs = get_file_storage();
- // This extra check if file area is empty adds one query if it is not empty but saves several if it is.
- if (!$fs->is_area_empty($fromcontext->id, 'block_html', 'content', 0, false)) {
- $draftitemid = 0;
- file_prepare_draft_area($draftitemid, $fromcontext->id, 'block_html', 'content', 0, array('subdirs' => true));
- file_save_draft_area_files($draftitemid, $this->context->id, 'block_html', 'content', 0, array('subdirs' => true));
- }
- return true;
- }
- function content_is_trusted() {
- global $SCRIPT;
- if (!$context = context::instance_by_id($this->instance->parentcontextid, IGNORE_MISSING)) {
- return false;
- }
- //find out if this block is on the profile page
- if ($context->contextlevel == CONTEXT_USER) {
- if ($SCRIPT === '/my/index.php') {
- // this is exception - page is completely private, nobody else may see content there
- // that is why we allow JS here
- return true;
- } else {
- // no JS on public personal pages, it would be a big security issue
- return false;
- }
- }
- return true;
- }
- /**
- * The block should only be dockable when the title of the block is not empty
- * and when parent allows docking.
- *
- * @return bool
- */
- public function instance_can_be_docked() {
- return (!empty($this->config->title) && parent::instance_can_be_docked());
- }
- /*
- * Add custom html attributes to aid with theming and styling
- *
- * @return array
- */
- function html_attributes() {
- global $CFG;
- $attributes = parent::html_attributes();
- if (!empty($CFG->block_html_allowcssclasses)) {
- if (!empty($this->config->classes)) {
- $attributes['class'] .= ' '.$this->config->classes;
- }
- }
- return $attributes;
- }
- }
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