mirror of
https://github.com/moodle/moodle.git
synced 2025-02-20 16:15:54 +01:00
e92c286c20
even non-course and sticky blocks. The parent context is block_instances.parentcontextid. The block context should be used for checking permissions directly related to the block, like moodle/block:view or moodle/site:manageblocks. However, if the block is displaying information about the current page, for example the participants block showing who 'here', then it may be better to use the context of the page where the bloack is appearing - in other words $this->page->context - to check permissions about the user's ability to see participants here. Or, if the block is displaying something stronly related to courses, for example, a course meny block, the block should probably use the context for $this->page->course to check permissions.
100 lines
3.5 KiB
PHP
Executable File
100 lines
3.5 KiB
PHP
Executable File
<?php //$Id$
|
|
|
|
class block_html extends block_base {
|
|
|
|
function init() {
|
|
$this->title = get_string('html', 'block_html');
|
|
$this->version = 2007101509;
|
|
}
|
|
|
|
function applicable_formats() {
|
|
return array('all' => true);
|
|
}
|
|
|
|
function specialization() {
|
|
$this->title = isset($this->config->title) ? format_string($this->config->title) : format_string(get_string('newhtmlblock', 'block_html'));
|
|
}
|
|
|
|
function instance_allow_multiple() {
|
|
return true;
|
|
}
|
|
|
|
function get_content() {
|
|
if ($this->content !== NULL) {
|
|
return $this->content;
|
|
}
|
|
|
|
if ($this->content_is_trusted()) {
|
|
// fancy html allowed only on course, category and system blocks.
|
|
$filteropt = new stdClass;
|
|
$filteropt->noclean = true;
|
|
} else {
|
|
$filteropt = null;
|
|
}
|
|
|
|
$this->content = new stdClass;
|
|
$this->content->text = isset($this->config->text) ? format_text($this->config->text, FORMAT_HTML, $filteropt) : '';
|
|
$this->content->footer = '';
|
|
|
|
unset($filteropt); // memory footprint
|
|
|
|
return $this->content;
|
|
}
|
|
|
|
function content_is_trusted() {
|
|
return in_array($this->page->context->contextlevel, array(CONTEXT_COURSE, CONTEXT_COURSECAT, CONTEXT_SYSTEM));
|
|
}
|
|
|
|
/**
|
|
* Will be called before an instance of this block is backed up, so that any links in
|
|
* any links in any HTML fields on config can be encoded.
|
|
* @return string
|
|
*/
|
|
function get_backup_encoded_config() {
|
|
/// Prevent clone for non configured block instance. Delegate to parent as fallback.
|
|
if (empty($this->config)) {
|
|
return parent::get_backup_encoded_config();
|
|
}
|
|
$data = clone($this->config);
|
|
$data->text = backup_encode_absolute_links($data->text);
|
|
return base64_encode(serialize($data));
|
|
}
|
|
|
|
/**
|
|
* This function makes all the necessary calls to {@link restore_decode_content_links_worker()}
|
|
* function in order to decode contents of this block from the backup
|
|
* format to destination site/course in order to mantain inter-activities
|
|
* working in the backup/restore process.
|
|
*
|
|
* This is called from {@link restore_decode_content_links()} function in the restore process.
|
|
*
|
|
* NOTE: There is no block instance when this method is called.
|
|
*
|
|
* @param object $restore Standard restore object
|
|
* @return boolean
|
|
**/
|
|
function decode_content_links_caller($restore) {
|
|
global $CFG, $DB;
|
|
|
|
if ($restored_blocks = $DB->get_records_select("backup_ids", "table_name = 'block_instance' AND backup_code = ? AND new_id > 0", array($restore->backup_unique_code), "", "new_id")) {
|
|
$restored_blocks = implode(',', array_keys($restored_blocks));
|
|
$sql = "SELECT bi.*
|
|
FROM {block_instance} bi
|
|
JOIN {block} b ON b.id = bi.blockid
|
|
WHERE b.name = 'html' AND bi.id IN ($restored_blocks)";
|
|
|
|
if ($instances = $DB->get_records_sql($sql)) {
|
|
foreach ($instances as $instance) {
|
|
$blockobject = block_instance('html', $instance);
|
|
$blockobject->config->text = restore_decode_absolute_links($blockobject->config->text);
|
|
$blockobject->config->text = restore_decode_content_links_worker($blockobject->config->text, $restore);
|
|
$blockobject->instance_config_commit();
|
|
}
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
}
|
|
?>
|