3 // This file is part of Moodle - http://moodle.org/
5 // Moodle is free software: you can redistribute it and/or modify
6 // it under the terms of the GNU General Public License as published by
7 // the Free Software Foundation, either version 3 of the License, or
8 // (at your option) any later version.
10 // Moodle is distributed in the hope that it will be useful,
11 // but WITHOUT ANY WARRANTY; without even the implied warranty of
12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 // GNU General Public License for more details.
15 // You should have received a copy of the GNU General Public License
16 // along with Moodle. If not, see <http://www.gnu.org/licenses/>.
19 * This script delegates file serving to individual plugins
23 * @copyright 2008 Petr Skoda (http://skodak.org)
24 * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
27 // disable moodle specific debug messages and any errors in output
28 //define('NO_DEBUG_DISPLAY', true);
29 //TODO: uncomment this once the file api stabilises a bit more
31 require_once('config.php');
32 require_once('lib/filelib.php');
34 $relativepath = get_file_argument();
35 $forcedownload = optional_param('forcedownload', 0, PARAM_BOOL
);
37 // relative path must start with '/'
39 print_error('invalidargorconf');
40 } else if ($relativepath[0] != '/') {
41 print_error('pathdoesnotstartslash');
44 // extract relative path components
45 $args = explode('/', ltrim($relativepath, '/'));
47 if (count($args) < 3) { // always at least context, component and filearea
48 print_error('invalidarguments');
51 $contextid = (int)array_shift($args);
52 $component = clean_param(array_shift($args), PARAM_SAFEDIR
);
53 $filearea = clean_param(array_shift($args), PARAM_SAFEDIR
);
55 list($context, $course, $cm) = get_context_info_array($contextid);
57 $fs = get_file_storage();
59 // If the file is a Flash file and that the user flash player is outdated return a flash upgrader MDL-20841
60 $mimetype = mimeinfo('type', $args[count($args)-1]);
61 if (!empty($CFG->excludeoldflashclients
) && $mimetype == 'application/x-shockwave-flash'&& !empty($SESSION->flashversion
)) {
62 $userplayerversion = explode('.', $SESSION->flashversion
);
63 $requiredplayerversion = explode('.', $CFG->excludeoldflashclients
);
64 if (($userplayerversion[0] < $requiredplayerversion[0]) ||
65 ($userplayerversion[0] == $requiredplayerversion[0] && $userplayerversion[1] < $requiredplayerversion[1]) ||
66 ($userplayerversion[0] == $requiredplayerversion[0] && $userplayerversion[1] == $requiredplayerversion[1]
67 && $userplayerversion[2] < $requiredplayerversion[2])) {
68 $path = $CFG->dirroot
."/lib/flashdetect/flashupgrade.swf"; // Alternate content asking user to upgrade Flash
69 $filename = "flashupgrade.swf";
70 send_file($path, $filename, O
, 0, false, false, 'application/x-shockwave-flash'); // Do not cache
74 // ========================================================================================================================
75 if ($component === 'blog') {
77 if ($context->contextlevel
!= CONTEXT_SYSTEM
) {
78 send_file_not_found();
80 if ($filearea !== 'attachment' and $filearea !== 'post') {
81 send_file_not_found();
84 if (empty($CFG->bloglevel
)) {
85 print_error('siteblogdisable', 'blog');
88 if ($CFG->bloglevel
< BLOG_GLOBAL_LEVEL
) {
91 print_error('noguest');
93 if ($CFG->bloglevel
== BLOG_USER_LEVEL
) {
94 if ($USER->id
!= $entry->userid
) {
95 send_file_not_found();
99 $entryid = (int)array_shift($args);
100 if (!$entry = $DB->get_record('post', array('module'=>'blog', 'id'=>$entryid))) {
101 send_file_not_found();
104 if ('publishstate' === 'public') {
105 if ($CFG->forcelogin
) {
109 } else if ('publishstate' === 'site') {
112 } else if ('publishstate' === 'draft') {
114 if ($USER->id
!= $entry->userid
) {
115 send_file_not_found();
119 $filename = array_pop($args);
120 $filepath = $args ?
'/'.implode('/', $args).'/' : '/';
122 if (!$file = $fs->get_file($context->id
, $component, $filearea, $entryid, $filepath, $filename) or $file->is_directory()) {
123 send_file_not_found();
126 send_stored_file($file, 10*60, 0, true); // download MUST be forced - security!
128 // ========================================================================================================================
129 } else if ($component === 'grade') {
130 if (($filearea === 'outcome' or $filearea === 'scale') and $context->contextlevel
== CONTEXT_SYSTEM
) {
131 // Global gradebook files
132 if ($CFG->forcelogin
) {
136 $fullpath = "/$context->id/$component/$filearea/".implode('/', $args);
138 if (!$file = $fs->get_file_by_hash(sha1($fullpath)) or $file->is_directory()) {
139 send_file_not_found();
142 session_get_instance()->write_close(); // unlock session during fileserving
143 send_stored_file($file, 60*60, 0, $forcedownload);
145 } else if ($filearea === 'feedback' and $context->contextlevel
== CONTEXT_COURSE
) {
146 //TODO: nobody implemented this yet in grade edit form!!
147 send_file_not_found();
149 if ($CFG->forcelogin ||
$course->id
!= SITEID
) {
150 require_login($course);
153 $fullpath = "/$context->id/$component/$filearea/".implode('/', $args);
155 if (!$file = $fs->get_file_by_hash(sha1($fullpath)) or $file->is_directory()) {
156 send_file_not_found();
159 session_get_instance()->write_close(); // unlock session during fileserving
160 send_stored_file($file, 60*60, 0, $forcedownload);
162 send_file_not_found();
165 // ========================================================================================================================
166 } else if ($component === 'tag') {
167 if ($filearea === 'description' and $context->contextlevel
== CONTEXT_SYSTEM
) {
169 // All tag descriptions are going to be public but we still need to respect forcelogin
170 if ($CFG->forcelogin
) {
174 $fullpath = "/$context->id/tag/description/".implode('/', $args);
176 if (!$file = $fs->get_file_by_hash(sha1($fullpath)) or $file->is_directory()) {
177 send_file_not_found();
180 session_get_instance()->write_close(); // unlock session during fileserving
181 send_stored_file($file, 60*60, 0, true);
184 send_file_not_found();
187 // ========================================================================================================================
188 } else if ($component === 'calendar') {
189 if ($filearea === 'event_description' and $context->contextlevel
== CONTEXT_SYSTEM
) {
191 // All events here are public the one requirement is that we respect forcelogin
192 if ($CFG->forcelogin
) {
196 // Get the event if from the args array
197 $eventid = array_shift($args);
199 // Load the event from the database
200 if (!$event = $DB->get_record('event', array('id'=>(int)$eventid, 'eventtype'=>'site'))) {
201 send_file_not_found();
203 // Check that we got an event and that it's userid is that of the user
205 // Get the file and serve if successful
206 $filename = array_pop($args);
207 $filepath = $args ?
'/'.implode('/', $args).'/' : '/';
208 if (!$file = $fs->get_file($context->id
, $component, $filearea, $eventid, $filepath, $filename) or $file->is_directory()) {
209 send_file_not_found();
212 session_get_instance()->write_close(); // unlock session during fileserving
213 send_stored_file($file, 60*60, 0, $forcedownload);
215 } else if ($filearea === 'event_description' and $context->contextlevel
== CONTEXT_USER
) {
217 // Must be logged in, if they are not then they obviously can't be this user
220 // Don't want guests here, potentially saves a DB call
222 send_file_not_found();
225 // Get the event if from the args array
226 $eventid = array_shift($args);
228 // Load the event from the database - user id must match
229 if (!$event = $DB->get_record('event', array('id'=>(int)$eventid, 'userid'=>$USER->id
, 'eventtype'=>'user'))) {
230 send_file_not_found();
233 // Get the file and serve if successful
234 $filename = array_pop($args);
235 $filepath = $args ?
'/'.implode('/', $args).'/' : '/';
236 if (!$file = $fs->get_file($context->id
, $component, $filearea, $eventid, $filepath, $filename) or $file->is_directory()) {
237 send_file_not_found();
240 session_get_instance()->write_close(); // unlock session during fileserving
241 send_stored_file($file, 60*60, 0, $forcedownload);
243 } else if ($filearea === 'event_description' and $context->contextlevel
== CONTEXT_COURSE
) {
245 // Respect forcelogin and require login unless this is the site.... it probably
246 // should NEVER be the site
247 if ($CFG->forcelogin ||
$course->id
!= SITEID
) {
248 require_login($course);
251 // Must be able to at least view the course
252 if (!is_enrolled($context) and !is_viewing($context)) {
253 //TODO: hmm, do we really want to block guests here?
254 send_file_not_found();
258 $eventid = array_shift($args);
260 // Load the event from the database we need to check whether it is
261 // a) valid course event
263 // Group events use the course context (there is no group context)
264 if (!$event = $DB->get_record('event', array('id'=>(int)$eventid, 'courseid'=>$course->id
))) {
265 send_file_not_found();
268 // If its a group event require either membership of view all groups capability
269 if ($event->eventtype
=== 'group') {
270 if (!has_capability('moodle/site:accessallgroups', $context) && !groups_is_member($event->groupid
, $USER->id
)) {
271 send_file_not_found();
273 } else if ($event->eventtype
=== 'course') {
277 send_file_not_found();
280 // If we get this far we can serve the file
281 $filename = array_pop($args);
282 $filepath = $args ?
'/'.implode('/', $args).'/' : '/';
283 if (!$file = $fs->get_file($context->id
, $component, $filearea, $eventid, $filepath, $filename) or $file->is_directory()) {
284 send_file_not_found();
287 session_get_instance()->write_close(); // unlock session during fileserving
288 send_stored_file($file, 60*60, 0, $forcedownload);
291 send_file_not_found();
294 // ========================================================================================================================
295 } else if ($component === 'user') {
296 if ($filearea === 'icon' and $context->contextlevel
== CONTEXT_USER
) {
298 if (count($args) == 1) {
299 $themename = theme_config
::DEFAULT_THEME
;
300 $filename = array_shift($args);
302 $themename = array_shift($args);
303 $filename = array_shift($args);
305 if ((!empty($CFG->forcelogin
) and !isloggedin()) ||
306 (!empty($CFG->forceloginforprofileimage
) && (!isloggedin() ||
isguestuser()))) {
307 // protect images if login required and not logged in;
308 // also if login is required for profile images and is not logged in or guest
309 // do not use require_login() because it is expensive and not suitable here anyway
312 if (!$redirect and ($filename !== 'f1' and $filename !== 'f2')) {
316 if (!$redirect && !$file = $fs->get_file($context->id
, 'user', 'icon', 0, '/', $filename.'/.png')) {
317 if (!$file = $fs->get_file($context->id
, 'user', 'icon', 0, '/', $filename.'/.jpg')) {
322 $theme = theme_config
::load($themename);
323 redirect($theme->pix_url('u/'.$filename, 'moodle'));
325 send_stored_file($file, 60*60*24); // enable long caching, there are many images on each page
327 } else if ($filearea === 'private' and $context->contextlevel
== CONTEXT_USER
) {
331 send_file_not_found();
334 if ($USER->id
!== $context->instanceid
) {
335 send_file_not_found();
338 $filename = array_pop($args);
339 $filepath = $args ?
'/'.implode('/', $args).'/' : '/';
340 if (!$file = $fs->get_file($context->id
, $component, $filearea, 0, $filepath, $filename) or $file->is_directory()) {
341 send_file_not_found();
344 session_get_instance()->write_close(); // unlock session during fileserving
345 send_stored_file($file, 0, 0, true); // must force download - security!
347 } else if ($filearea === 'profile' and $context->contextlevel
== CONTEXT_USER
) {
349 if ($CFG->forcelogin
) {
353 $userid = $context->instanceid
;
355 if ($USER->id
== $userid) {
356 // always can access own
358 } else if (!empty($CFG->forceloginforprofiles
)) {
362 send_file_not_found();
365 // we allow access to site profile of all course contacts (usually teachers)
366 if (!has_coursecontact_role($userid) && !has_capability('moodle/user:viewdetails', $context)) {
367 send_file_not_found();
371 if (has_capability('moodle/user:viewdetails', $context)) {
374 $courses = enrol_get_my_courses();
377 while (!$canview && count($courses) > 0) {
378 $course = array_shift($courses);
379 if (has_capability('moodle/user:viewdetails', get_context_instance(CONTEXT_COURSE
, $course->id
))) {
385 $filename = array_pop($args);
386 $filepath = $args ?
'/'.implode('/', $args).'/' : '/';
387 if (!$file = $fs->get_file($context->id
, $component, $filearea, 0, $filepath, $filename) or $file->is_directory()) {
388 send_file_not_found();
391 session_get_instance()->write_close(); // unlock session during fileserving
392 send_stored_file($file, 0, 0, true); // must force download - security!
394 } else if ($filearea === 'profile' and $context->contextlevel
== CONTEXT_COURSE
) {
395 $userid = (int)array_shift($args);
396 $usercontext = get_context_instance(CONTEXT_USER
, $userid);
398 if ($CFG->forcelogin
) {
402 if (!empty($CFG->forceloginforprofiles
)) {
405 print_error('noguest');
408 //TODO: review this logic of user profile access prevention
409 if (!has_coursecontact_role($userid) and !has_capability('moodle/user:viewdetails', $usercontext)) {
410 print_error('usernotavailable');
412 if (!has_capability('moodle/user:viewdetails', $context) && !has_capability('moodle/user:viewdetails', $usercontext)) {
413 print_error('cannotviewprofile');
415 if (!is_enrolled($context, $userid)) {
416 print_error('notenrolledprofile');
418 if (groups_get_course_groupmode($course) == SEPARATEGROUPS
and !has_capability('moodle/site:accessallgroups', $context)) {
419 print_error('groupnotamember');
423 $filename = array_pop($args);
424 $filepath = $args ?
'/'.implode('/', $args).'/' : '/';
425 if (!$file = $fs->get_file($usercontext->id
, 'user', 'profile', 0, $filepath, $filename) or $file->is_directory()) {
426 send_file_not_found();
429 session_get_instance()->write_close(); // unlock session during fileserving
430 send_stored_file($file, 0, 0, true); // must force download - security!
432 } else if ($filearea === 'backup' and $context->contextlevel
== CONTEXT_USER
) {
436 send_file_not_found();
438 $userid = $context->instanceid
;
440 if ($USER->id
!= $userid) {
441 send_file_not_found();
444 $filename = array_pop($args);
445 $filepath = $args ?
'/'.implode('/', $args).'/' : '/';
446 if (!$file = $fs->get_file($context->id
, 'user', 'backup', 0, $filepath, $filename) or $file->is_directory()) {
447 send_file_not_found();
450 session_get_instance()->write_close(); // unlock session during fileserving
451 send_stored_file($file, 0, 0, true); // must force download - security!
454 send_file_not_found();
457 // ========================================================================================================================
458 } else if ($component === 'coursecat') {
459 if ($context->contextlevel
!= CONTEXT_COURSECAT
) {
460 send_file_not_found();
463 if ($filearea === 'description') {
464 if ($CFG->forcelogin
) {
465 // no login necessary - unless login forced everywhere
469 $filename = array_pop($args);
470 $filepath = $args ?
'/'.implode('/', $args).'/' : '/';
471 if (!$file = $fs->get_file($context->id
, 'coursecat', 'description', 0, $filepath, $filename) or $file->is_directory()) {
472 send_file_not_found();
475 session_get_instance()->write_close(); // unlock session during fileserving
476 send_stored_file($file, 60*60, 0, $forcedownload);
478 send_file_not_found();
481 // ========================================================================================================================
482 } else if ($component === 'course') {
483 if ($context->contextlevel
!= CONTEXT_COURSE
) {
484 send_file_not_found();
487 if ($filearea === 'summary') {
488 if ($CFG->forcelogin
) {
492 $filename = array_pop($args);
493 $filepath = $args ?
'/'.implode('/', $args).'/' : '/';
494 if (!$file = $fs->get_file($context->id
, 'course', 'summary', 0, $filepath, $filename) or $file->is_directory()) {
495 send_file_not_found();
498 session_get_instance()->write_close(); // unlock session during fileserving
499 send_stored_file($file, 60*60, 0, $forcedownload);
501 } else if ($filearea === 'section') {
502 if ($CFG->forcelogin
) {
503 require_login($course);
504 } else if ($course->id
!= SITEID
) {
505 require_login($course);
508 $sectionid = (int)array_shift($args);
510 if (!$section = $DB->get_record('course_sections', array('id'=>$sectionid, 'course'=>$course->id
))) {
511 send_file_not_found();
514 if ($course->numsections
< $section->section
) {
515 if (!has_capability('moodle/course:update', $context)) {
516 // block access to unavailable sections if can not edit course
517 send_file_not_found();
521 $filename = array_pop($args);
522 $filepath = $args ?
'/'.implode('/', $args).'/' : '/';
523 if (!$file = $fs->get_file($context->id
, 'course', 'section', $sectionid, $filepath, $filename) or $file->is_directory()) {
524 send_file_not_found();
527 session_get_instance()->write_close(); // unlock session during fileserving
528 send_stored_file($file, 60*60, 0, $forcedownload);
531 send_file_not_found();
534 } else if ($component === 'group') {
535 if ($context->contextlevel
!= CONTEXT_COURSE
) {
536 send_file_not_found();
539 require_course_login($course, true, null, false);
541 $groupid = (int)array_shift($args);
543 $group = $DB->get_record('groups', array('id'=>$groupid, 'courseid'=>$course->id
), '*', MUST_EXIST
);
544 if (($course->groupmodeforce
and $course->groupmode
== SEPARATEGROUPS
) and !has_capability('moodle/site:accessallgroups', $context) and !groups_is_member($group->id
, $USER->id
)) {
545 // do not allow access to separate group info if not member or teacher
546 send_file_not_found();
549 if ($filearea === 'description') {
551 require_login($course);
553 $filename = array_pop($args);
554 $filepath = $args ?
'/'.implode('/', $args).'/' : '/';
555 if (!$file = $fs->get_file($context->id
, 'group', 'description', $group->id
, $filepath, $filename) or $file->is_directory()) {
556 send_file_not_found();
559 session_get_instance()->write_close(); // unlock session during fileserving
560 send_stored_file($file, 60*60, 0, $forcedownload);
562 } else if ($filearea === 'icon') {
563 $filename = array_pop($args);
565 if ($filename !== 'f1' and $filename !== 'f2') {
566 send_file_not_found();
568 if (!$file = $fs->get_file($context->id
, 'group', 'icon', $group->id
, '/', $filename.'.png')) {
569 if (!$file = $fs->get_file($context->id
, 'group', 'icon', $group->id
, '/', $filename.'.jpg')) {
570 send_file_not_found();
574 session_get_instance()->write_close(); // unlock session during fileserving
575 send_stored_file($file, 60*60);
578 send_file_not_found();
581 } else if ($component === 'grouping') {
582 if ($context->contextlevel
!= CONTEXT_COURSE
) {
583 send_file_not_found();
586 require_login($course);
588 $groupingid = (int)array_shift($args);
590 // note: everybody has access to grouping desc images for now
591 if ($filearea === 'description') {
593 $filename = array_pop($args);
594 $filepath = $args ?
'/'.implode('/', $args).'/' : '/';
595 if (!$file = $fs->get_file($context->id
, 'grouping', 'description', $groupingid, $filepath, $filename) or $file->is_directory()) {
596 send_file_not_found();
599 session_get_instance()->write_close(); // unlock session during fileserving
600 send_stored_file($file, 60*60, 0, $forcedownload);
603 send_file_not_found();
606 // ========================================================================================================================
607 } else if ($component === 'backup') {
608 if ($filearea === 'course' and $context->contextlevel
== CONTEXT_COURSE
) {
609 require_login($course);
610 require_capability('moodle/backup:downloadfile', $context);
612 $filename = array_pop($args);
613 $filepath = $args ?
'/'.implode('/', $args).'/' : '/';
614 if (!$file = $fs->get_file($context->id
, 'backup', 'course', 0, $filepath, $filename) or $file->is_directory()) {
615 send_file_not_found();
618 session_get_instance()->write_close(); // unlock session during fileserving
619 send_stored_file($file, 0, 0, $forcedownload);
621 } else if ($filearea === 'section' and $context->contextlevel
== CONTEXT_COURSE
) {
622 require_login($course);
623 require_capability('moodle/backup:downloadfile', $context);
625 $sectionid = (int)array_shift($args);
627 $filename = array_pop($args);
628 $filepath = $args ?
'/'.implode('/', $args).'/' : '/';
629 if (!$file = $fs->get_file($context->id
, 'backup', 'section', $sectionid, $filepath, $filename) or $file->is_directory()) {
630 send_file_not_found();
633 session_get_instance()->write_close();
634 send_stored_file($file, 60*60, 0, $forcedownload);
636 } else if ($filearea === 'activity' and $context->contextlevel
== CONTEXT_MODULE
) {
637 require_login($course, false, $cm);
638 require_capability('moodle/backup:downloadfile', $context);
640 $filename = array_pop($args);
641 $filepath = $args ?
'/'.implode('/', $args).'/' : '/';
642 if (!$file = $fs->get_file($context->id
, 'backup', 'activity', 0, $filepath, $filename) or $file->is_directory()) {
643 send_file_not_found();
646 session_get_instance()->write_close();
647 send_stored_file($file, 60*60, 0, $forcedownload);
649 } else if ($filearea === 'automated' and $context->contextlevel
== CONTEXT_COURSE
) {
650 // Backup files that were generated by the automated backup systems.
652 require_login($course);
653 require_capability('moodle/site:config', $context);
655 $filename = array_pop($args);
656 $filepath = $args ?
'/'.implode('/', $args).'/' : '/';
657 if (!$file = $fs->get_file($context->id
, 'backup', 'automated', 0, $filepath, $filename) or $file->is_directory()) {
658 send_file_not_found();
661 session_get_instance()->write_close(); // unlock session during fileserving
662 send_stored_file($file, 0, 0, $forcedownload);
665 send_file_not_found();
668 // ========================================================================================================================
669 } else if ($component === 'question') {
670 require_once($CFG->libdir
. '/questionlib.php');
671 question_pluginfile($course, $context, 'question', $filearea, $args, $forcedownload);
672 send_file_not_found();
674 // ========================================================================================================================
675 } else if (strpos($component, 'mod_') === 0) {
676 $modname = substr($component, 4);
677 if (!file_exists("$CFG->dirroot/mod/$modname/lib.php")) {
678 send_file_not_found();
680 require_once("$CFG->dirroot/mod/$modname/lib.php");
682 if ($context->contextlevel
== CONTEXT_MODULE
) {
683 if ($cm->modname
!== $modname) {
684 // somebody tries to gain illegal access, cm type must match the component!
685 send_file_not_found();
689 if ($filearea === 'intro') {
690 if (!plugin_supports('mod', $modname, FEATURE_MOD_INTRO
, true)) {
691 send_file_not_found();
693 require_course_login($course, true, $cm);
695 // all users may access it
696 $filename = array_pop($args);
697 $filepath = $args ?
'/'.implode('/', $args).'/' : '/';
698 if (!$file = $fs->get_file($context->id
, 'mod_'.$modname, 'intro', 0, $filepath, $filename) or $file->is_directory()) {
699 send_file_not_found();
702 $lifetime = isset($CFG->filelifetime
) ?
$CFG->filelifetime
: 86400;
704 // finally send the file
705 send_stored_file($file, $lifetime, 0);
708 $filefunction = $component.'_pluginfile';
709 $filefunctionold = $modname.'_pluginfile';
710 if (function_exists($filefunction)) {
711 // if the function exists, it must send the file and terminate. Whatever it returns leads to "not found"
712 $filefunction($course, $cm, $context, $filearea, $args, $forcedownload);
713 } else if (function_exists($filefunctionold)) {
714 // if the function exists, it must send the file and terminate. Whatever it returns leads to "not found"
715 $filefunctionold($course, $cm, $context, $filearea, $args, $forcedownload);
718 send_file_not_found();
720 // ========================================================================================================================
721 } else if (strpos($component, 'block_') === 0) {
722 $blockname = substr($component, 6);
723 // note: no more class methods in blocks please, that is ....
724 if (!file_exists("$CFG->dirroot/blocks/$blockname/lib.php")) {
725 send_file_not_found();
727 require_once("$CFG->dirroot/blocks/$blockname/lib.php");
729 if ($context->contextlevel
== CONTEXT_BLOCK
) {
730 $birecord = $DB->get_record('block_instances', array('id'=>$context->instanceid
), '*',MUST_EXIST
);
731 if ($birecord->blockname
!== $blockname) {
732 // somebody tries to gain illegal access, cm type must match the component!
733 send_file_not_found();
739 $filefunction = $component.'_pluginfile';
740 if (function_exists($filefunction)) {
741 // if the function exists, it must send the file and terminate. Whatever it returns leads to "not found"
742 $filefunction($course, $birecord, $context, $filearea, $args, $forcedownload);
745 send_file_not_found();
747 } else if (strpos($component, '_') === false) {
748 // all core subsystems have to be specified above, no more guessing here!
749 send_file_not_found();
752 // try to serve general plugin file in arbitrary context
753 $dir = get_component_directory($component);
754 if (!file_exists("$dir/lib.php")) {
755 send_file_not_found();
757 include_once("$dir/lib.php");
759 $filefunction = $component.'_pluginfile';
760 if (function_exists($filefunction)) {
761 // if the function exists, it must send the file and terminate. Whatever it returns leads to "not found"
762 $filefunction($course, $cm, $context, $filearea, $args, $forcedownload);
765 send_file_not_found();