// from now on user must be logged on properly
if (!($cm = get_coursemodule_from_instance('quora', $quora->id, $course->id))) {
// For the logs
print_error('invalidcoursemodule');
}
$modcontext = context_module::instance($cm->id);
require_login($course, false, $cm);
if (isguestuser()) {
// just in case
print_error('noguest');
}
if (!isset($quora->maxattachments)) {
// TODO - delete this once we add a field to the quora table
$quora->maxattachments = 3;
}
$thresholdwarning = quora_check_throttling($quora, $cm);
$mform_post = new mod_quora_post_form('post.php', array('course' => $course, 'cm' => $cm, 'coursecontext' => $coursecontext, 'modcontext' => $modcontext, 'quora' => $quora, 'post' => $post, 'subscribe' => \mod_quora\subscriptions::is_subscribed($USER->id, $quora, null, $cm), 'thresholdwarning' => $thresholdwarning, 'edit' => $edit), 'post', '', array('id' => 'mformquora'));
$draftitemid = file_get_submitted_draft_itemid('attachments');
file_prepare_draft_area($draftitemid, $modcontext->id, 'mod_quora', 'attachment', empty($post->id) ? null : $post->id, mod_quora_post_form::attachment_options($quora));
//load data into form NOW!
if ($USER->id != $post->userid) {
// Not the original author, so add a message to the end
$data = new stdClass();
$data->date = userdate($post->modified);
if ($post->messageformat == FORMAT_HTML) {
$data->name = '<a href="' . $CFG->wwwroot . '/user/view.php?id=' . $USER->id . '&course=' . $post->course . '">' . fullname($USER) . '</a>';
$post->message .= '<p><span class="edited">(' . get_string('editedby', 'quora', $data) . ')</span></p>';
} else {
$data->name = fullname($USER);
$post->message .= "\n\n(" . get_string('editedby', 'quora', $data) . ')';
}
/**
* Process a message received and validated by the Inbound Message processor.
*
* @throws \core\message\inbound\processing_failed_exception
* @param \stdClass $messagedata The Inbound Message record
* @param \stdClass $messagedata The message data packet
* @return bool Whether the message was successfully processed.
*/
public function process_message(\stdClass $record, \stdClass $messagedata)
{
global $DB, $USER;
// Load the post being replied to.
$post = $DB->get_record('quora_posts', array('id' => $record->datavalue));
if (!$post) {
mtrace("--> Unable to find a post matching with id {$record->datavalue}");
return false;
}
// Load the discussion that this post is in.
$discussion = $DB->get_record('quora_discussions', array('id' => $post->discussion));
if (!$post) {
mtrace("--> Unable to find the discussion for post {$record->datavalue}");
return false;
}
// Load the other required data.
$quora = $DB->get_record('quora', array('id' => $discussion->quora));
$course = $DB->get_record('course', array('id' => $quora->course));
$cm = get_fast_modinfo($course->id)->instances['quora'][$quora->id];
$modcontext = \context_module::instance($cm->id);
$usercontext = \context_user::instance($USER->id);
// Make sure user can post in this discussion.
$canpost = true;
if (!quora_user_can_post($quora, $discussion, $USER, $cm, $course, $modcontext)) {
$canpost = false;
}
if (isset($cm->groupmode) && empty($course->groupmodeforce)) {
$groupmode = $cm->groupmode;
} else {
$groupmode = $course->groupmode;
}
if ($groupmode == SEPARATEGROUPS and !has_capability('moodle/site:accessallgroups', $modcontext)) {
if ($discussion->groupid == -1) {
$canpost = false;
} else {
if (!groups_is_member($discussion->groupid)) {
$canpost = false;
}
}
}
if (!$canpost) {
$data = new \stdClass();
$data->quora = $quora;
throw new \core\message\inbound\processing_failed_exception('messageinboundnopostquora', 'mod_quora', $data);
}
// And check the availability.
if (!\core_availability\info_module::is_user_visible($cm)) {
$data = new \stdClass();
$data->quora = $quora;
throw new \core\message\inbound\processing_failed_exception('messageinboundquorahidden', 'mod_quora', $data);
}
// Before we add this we must check that the user will not exceed the blocking threshold.
// This should result in an appropriate reply.
$thresholdwarning = quora_check_throttling($quora, $cm);
if (!empty($thresholdwarning) && !$thresholdwarning->canpost) {
$data = new \stdClass();
$data->quora = $quora;
$data->message = get_string($thresholdwarning->errorcode, $thresholdwarning->module, $thresholdwarning->additional);
throw new \core\message\inbound\processing_failed_exception('messageinboundthresholdhit', 'mod_quora', $data);
}
$subject = clean_param($messagedata->envelope->subject, PARAM_TEXT);
$restring = get_string('re', 'quora');
if (strpos($subject, $discussion->name)) {
// The discussion name is mentioned in the e-mail subject. This is probably just the standard reply. Use the
// standard reply subject instead.
$newsubject = $restring . ' ' . $discussion->name;
mtrace("--> Note: Post subject matched discussion name. Optimising from {$subject} to {$newsubject}");
$subject = $newsubject;
} else {
if (strpos($subject, $post->subject)) {
// The replied-to post's subject is mentioned in the e-mail subject.
// Use the previous post's subject instead of the e-mail subject.
$newsubject = $post->subject;
if (!strpos($restring, $post->subject)) {
// The previous post did not contain a re string, add it.
$newsubject = $restring . ' ' . $newsubject;
}
mtrace("--> Note: Post subject matched original post subject. Optimising from {$subject} to {$newsubject}");
$subject = $newsubject;
}
}
$addpost = new \stdClass();
$addpost->course = $course->id;
$addpost->quora = $quora->id;
$addpost->discussion = $discussion->id;
$addpost->modified = $messagedata->timestamp;
$addpost->subject = $subject;
$addpost->parent = $post->id;
$addpost->itemid = file_get_unused_draft_itemid();
list($message, $format) = self::remove_quoted_text($messagedata);
$addpost->message = $message;
$addpost->messageformat = $format;
// We don't trust text coming from e-mail.
$addpost->messagetrust = false;
// Add attachments to the post.
if (!empty($messagedata->attachments['attachment']) && count($messagedata->attachments['attachment'])) {
$attachmentcount = count($messagedata->attachments['attachment']);
if (empty($quora->maxattachments) || $quora->maxbytes == 1 || !has_capability('mod/quora:createattachment', $modcontext)) {
// Attachments are not allowed.
mtrace("--> User does not have permission to attach files in this quora. Rejecting e-mail.");
$data = new \stdClass();
$data->quora = $quora;
$data->attachmentcount = $attachmentcount;
throw new \core\message\inbound\processing_failed_exception('messageinboundattachmentdisallowed', 'mod_quora', $data);
}
if ($quora->maxattachments < $attachmentcount) {
// Too many attachments.
mtrace("--> User attached {$attachmentcount} files when only {$quora->maxattachments} where allowed. " . " Rejecting e-mail.");
$data = new \stdClass();
$data->quora = $quora;
$data->attachmentcount = $attachmentcount;
throw new \core\message\inbound\processing_failed_exception('messageinboundfilecountexceeded', 'mod_quora', $data);
}
$filesize = 0;
$addpost->attachments = file_get_unused_draft_itemid();
foreach ($messagedata->attachments['attachment'] as $attachment) {
mtrace("--> Processing {$attachment->filename} as an attachment.");
$this->process_attachment('*', $usercontext, $addpost->attachments, $attachment);
$filesize += $attachment->filesize;
}
if ($quora->maxbytes < $filesize) {
// Too many attachments.
mtrace("--> User attached {$filesize} bytes of files when only {$quora->maxbytes} where allowed. " . "Rejecting e-mail.");
$data = new \stdClass();
$data->quora = $quora;
$data->maxbytes = display_size($quora->maxbytes);
$data->filesize = display_size($filesize);
throw new \core\message\inbound\processing_failed_exception('messageinboundfilesizeexceeded', 'mod_quora', $data);
}
}
// Process any files in the message itself.
if (!empty($messagedata->attachments['inline'])) {
foreach ($messagedata->attachments['inline'] as $attachment) {
mtrace("--> Processing {$attachment->filename} as an inline attachment.");
$this->process_attachment('*', $usercontext, $addpost->itemid, $attachment);
// Convert the contentid link in the message.
$draftfile = \moodle_url::make_draftfile_url($addpost->itemid, '/', $attachment->filename);
$addpost->message = preg_replace('/cid:' . $attachment->contentid . '/', $draftfile, $addpost->message);
}
}
// Insert the message content now.
$addpost->id = quora_add_new_post($addpost, true);
// Log the new post creation.
$params = array('context' => $modcontext, 'objectid' => $addpost->id, 'other' => array('discussionid' => $discussion->id, 'quoraid' => $quora->id, 'quoratype' => $quora->type));
$event = \mod_quora\event\post_created::create($params);
$event->add_record_snapshot('quora_posts', $addpost);
$event->add_record_snapshot('quora_discussions', $discussion);
$event->trigger();
mtrace("--> Created a post {$addpost->id} in {$discussion->id}.");
return $addpost;
}
