/**
* @param string $courseshortname
* @param string $data
* @param string $filename
* @return array
* @throws \file_exception
* @throws \stored_file_creation_exception
*/
public function setcoverimage($courseshortname, $data, $filename)
{
global $CFG;
$course = $this->coursebyshortname($courseshortname);
if ($course->id != SITEID) {
// Course cover images.
$context = \context_course::instance($course->id);
} else {
// Site cover images.
$context = \context_system::instance();
}
require_capability('moodle/course:changesummary', $context);
$fs = get_file_storage();
$ext = strtolower(pathinfo($filename, PATHINFO_EXTENSION));
$ext = $ext === 'jpeg' ? 'jpg' : $ext;
if (!in_array($ext, local::supported_coverimage_types())) {
return ['success' => false, 'warning' => get_string('unsupportedcoverimagetype', 'theme_snap', $ext)];
}
$newfilename = 'rawcoverimage.' . $ext;
$binary = base64_decode($data);
if (strlen($binary) > get_max_upload_file_size($CFG->maxbytes)) {
throw new \moodle_exception('error:coverimageexceedsmaxbytes', 'theme_snap');
}
if ($course->id != SITEID) {
// Course cover images.
$context = \context_course::instance($course->id);
// Check suitability of course summary files area for use with cover images.
if (!$this->check_summary_files_for_image_suitability($context)) {
return ['success' => false, 'warning' => get_string('coursesummaryfilesunsuitable', 'theme_snap')];
}
$fileinfo = array('contextid' => $context->id, 'component' => 'course', 'filearea' => 'overviewfiles', 'itemid' => 0, 'filepath' => '/', 'filename' => $newfilename);
// Remove any old course summary image files.
$fs->delete_area_files($context->id, $fileinfo['component'], $fileinfo['filearea']);
} else {
// Site cover images.
$context = \context_system::instance();
$fileinfo = array('contextid' => $context->id, 'component' => 'theme_snap', 'filearea' => 'poster', 'itemid' => 0, 'filepath' => '/', 'filename' => $newfilename);
// Remove everything from poster area.
$fs->delete_area_files($context->id, 'theme_snap', 'poster');
}
// Create new cover image file and process it.
$storedfile = $fs->create_file_from_string($fileinfo, $binary);
$success = $storedfile instanceof \stored_file;
if ($course->id != SITEID) {
local::process_coverimage($context, $storedfile);
} else {
set_config('poster', $newfilename, 'theme_snap');
local::process_coverimage($context);
}
return ['success' => $success];
}
