/**
* Classify a post as spam (and report it) or ham
*
* @param \mod_forum\event\post_created $event The event.
* @return void
*/
protected static function classifyAndReportSpam(\mod_forum\event\post_created $event)
{
$snapshot = $event->get_record_snapshot('forum_posts', $event->objectid);
$text = $snapshot->subject . ' ' . $snapshot->message;
$config = get_config('local_solr');
$curl = new \curl();
$result = $curl->post($config->spamclassifierhost . ':' . $config->spamclassifierport, array('text' => $text));
if ($result_decoded = json_decode($result)) {
if ($result_decoded['cat'] == 'spam') {
require_once $CFG->dirroot . '/blocks/spam_deletion/lib.php';
$postspam = new \forum_post_spam($event->objectid);
$postspam->register_vote(2);
}
}
}
$message .= get_string("postmailnow", "forum");
$timemessage = 4;
} else {
$message .= '<p>' . get_string("postaddedsuccess", "forum") . '</p>';
$message .= '<p>' . get_string("postaddedtimeleft", "forum", format_time($CFG->maxeditingtime)) . '</p>';
}
if ($forum->type == 'single') {
// Single discussion forums are an exception. We show
// the forum itself since it only has one discussion
// thread.
$discussionurl = "view.php?f={$forum->id}";
} else {
$discussionurl = "discuss.php?d={$discussion->id}";
}
$params = array('context' => $modcontext, 'objectid' => $fromform->id, 'other' => array('discussionid' => $discussion->id, 'forumid' => $forum->id, 'forumtype' => $forum->type));
$event = \mod_forum\event\post_created::create($params);
$event->add_record_snapshot('forum_posts', $fromform);
$event->add_record_snapshot('forum_discussions', $discussion);
$event->trigger();
// Update completion state
$completion = new completion_info($course);
if ($completion->is_enabled($cm) && ($forum->completionreplies || $forum->completionposts)) {
$completion->update_state($cm, COMPLETION_COMPLETE);
}
redirect(forum_go_back_to("{$discussionurl}#p{$fromform->id}"), $message . $subscribemessage, $timemessage);
} else {
print_error("couldnotadd", "forum", $errordestination);
}
exit;
} else {
// Adding a new discussion.
/**
* Test the post_created event for a single discussion forum.
*/
public function test_post_created_single()
{
// Setup test data.
$course = $this->getDataGenerator()->create_course();
$forum = $this->getDataGenerator()->create_module('forum', array('course' => $course->id, 'type' => 'single'));
$user = $this->getDataGenerator()->create_user();
// Add a discussion.
$record = array();
$record['course'] = $course->id;
$record['forum'] = $forum->id;
$record['userid'] = $user->id;
$discussion = $this->getDataGenerator()->get_plugin_generator('mod_forum')->create_discussion($record);
// Add a post.
$record = array();
$record['discussion'] = $discussion->id;
$record['userid'] = $user->id;
$post = $this->getDataGenerator()->get_plugin_generator('mod_forum')->create_post($record);
$context = context_module::instance($forum->cmid);
$params = array('context' => $context, 'objectid' => $post->id, 'other' => array('discussionid' => $discussion->id, 'forumid' => $forum->id, 'forumtype' => $forum->type));
$event = \mod_forum\event\post_created::create($params);
// Trigger and capturing the event.
$sink = $this->redirectEvents();
$event->trigger();
$events = $sink->get_events();
$this->assertCount(1, $events);
$event = reset($events);
// Checking that the event contains the expected values.
$this->assertInstanceOf('\\mod_forum\\event\\post_created', $event);
$this->assertEquals($context, $event->get_context());
$expected = array($course->id, 'forum', 'add post', "view.php?f={$forum->id}#p{$post->id}", $forum->id, $forum->cmid);
$this->assertEventLegacyLogData($expected, $event);
$url = new \moodle_url('/mod/forum/view.php', array('f' => $forum->id));
$url->set_anchor('p' . $event->objectid);
$this->assertEquals($url, $event->get_url());
$this->assertEventContextNotUsed($event);
$this->assertNotEmpty($event->get_name());
}
/**
* Create new posts into an existing discussion.
*
* @param int $postid the post id we are going to reply to
* @param string $subject new post subject
* @param string $message new post message (only html format allowed)
* @param array $options optional settings
* @return array of warnings and the new post id
* @since Moodle 3.0
* @throws moodle_exception
*/
public static function add_discussion_post($postid, $subject, $message, $options = array()) {
global $DB, $CFG, $USER;
require_once($CFG->dirroot . "/mod/forum/lib.php");
$params = self::validate_parameters(self::add_discussion_post_parameters(),
array(
'postid' => $postid,
'subject' => $subject,
'message' => $message,
'options' => $options
));
// Validate options.
$options = array(
'discussionsubscribe' => true
);
foreach ($params['options'] as $option) {
$name = trim($option['name']);
switch ($name) {
case 'discussionsubscribe':
$value = clean_param($option['value'], PARAM_BOOL);
break;
default:
throw new moodle_exception('errorinvalidparam', 'webservice', '', $name);
}
$options[$name] = $value;
}
$warnings = array();
if (!$parent = forum_get_post_full($params['postid'])) {
throw new moodle_exception('invalidparentpostid', 'forum');
}
if (!$discussion = $DB->get_record("forum_discussions", array("id" => $parent->discussion))) {
throw new moodle_exception('notpartofdiscussion', 'forum');
}
// Request and permission validation.
$forum = $DB->get_record('forum', array('id' => $discussion->forum), '*', MUST_EXIST);
list($course, $cm) = get_course_and_cm_from_instance($forum, 'forum');
$context = context_module::instance($cm->id);
self::validate_context($context);
if (!forum_user_can_post($forum, $discussion, $USER, $cm, $course, $context)) {
throw new moodle_exception('nopostforum', 'forum');
}
$thresholdwarning = forum_check_throttling($forum, $cm);
forum_check_blocking_threshold($thresholdwarning);
// Create the post.
$post = new stdClass();
$post->discussion = $discussion->id;
$post->parent = $parent->id;
$post->subject = $params['subject'];
$post->message = $params['message'];
$post->messageformat = FORMAT_HTML; // Force formatting for now.
$post->messagetrust = trusttext_trusted($context);
$post->itemid = 0;
if ($postid = forum_add_new_post($post, null)) {
$post->id = $postid;
// Trigger events and completion.
$params = array(
'context' => $context,
'objectid' => $post->id,
'other' => array(
'discussionid' => $discussion->id,
'forumid' => $forum->id,
'forumtype' => $forum->type,
)
);
$event = \mod_forum\event\post_created::create($params);
$event->add_record_snapshot('forum_posts', $post);
$event->add_record_snapshot('forum_discussions', $discussion);
$event->trigger();
// Update completion state.
$completion = new completion_info($course);
if ($completion->is_enabled($cm) &&
($forum->completionreplies || $forum->completionposts)) {
$completion->update_state($cm, COMPLETION_COMPLETE);
}
$settings = new stdClass();
$settings->discussionsubscribe = $options['discussionsubscribe'];
forum_post_subscription($settings, $forum, $discussion);
} else {
throw new moodle_exception('couldnotadd', 'forum');
}
$result = array();
$result['postid'] = $postid;
$result['warnings'] = $warnings;
return $result;
}
/**
* 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('forum_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('forum_discussions', array('id' => $post->discussion));
if (!$post) {
mtrace("--> Unable to find the discussion for post {$record->datavalue}");
return false;
}
// Load the other required data.
$forum = $DB->get_record('forum', array('id' => $discussion->forum));
$course = $DB->get_record('course', array('id' => $forum->course));
$cm = get_fast_modinfo($course->id)->instances['forum'][$forum->id];
$modcontext = \context_module::instance($cm->id);
$usercontext = \context_user::instance($USER->id);
// Make sure user can post in this discussion.
$canpost = true;
if (!forum_user_can_post($forum, $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->forum = $forum;
throw new \core\message\inbound\processing_failed_exception('messageinboundnopostforum', 'mod_forum', $data);
}
// And check the availability.
if (!\core_availability\info_module::is_user_visible($cm, $USER, true)) {
$data = new \stdClass();
$data->forum = $forum;
throw new \core\message\inbound\processing_failed_exception('messageinboundforumhidden', 'mod_forum', $data);
}
// Before we add this we must check that the user will not exceed the blocking threshold.
// This should result in an appropriate reply.
$thresholdwarning = forum_check_throttling($forum, $cm);
if (!empty($thresholdwarning) && !$thresholdwarning->canpost) {
$data = new \stdClass();
$data->forum = $forum;
$data->message = get_string($thresholdwarning->errorcode, $thresholdwarning->module, $thresholdwarning->additional);
throw new \core\message\inbound\processing_failed_exception('messageinboundthresholdhit', 'mod_forum', $data);
}
$addpost = new \stdClass();
$addpost->course = $course->id;
$addpost->forum = $forum->id;
$addpost->discussion = $discussion->id;
$addpost->modified = $messagedata->timestamp;
$addpost->subject = clean_param($messagedata->envelope->subject, PARAM_TEXT);
$addpost->parent = $post->id;
$addpost->itemid = file_get_unused_draft_itemid();
if (!empty($messagedata->html)) {
$addpost->message = $messagedata->html;
$addpost->messageformat = FORMAT_HTML;
} else {
$addpost->message = $messagedata->plain;
$addpost->messageformat = FORMAT_PLAIN;
}
// 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($forum->maxattachments) || $forum->maxbytes == 1 ||
!has_capability('mod/forum:createattachment', $modcontext)) {
// Attachments are not allowed.
mtrace("--> User does not have permission to attach files in this forum. Rejecting e-mail.");
$data = new \stdClass();
$data->forum = $forum;
$data->attachmentcount = $attachmentcount;
throw new \core\message\inbound\processing_failed_exception('messageinboundattachmentdisallowed', 'mod_forum', $data);
}
if ($forum->maxattachments < $attachmentcount) {
// Too many attachments.
mtrace("--> User attached {$attachmentcount} files when only {$forum->maxattachments} where allowed. "
. " Rejecting e-mail.");
$data = new \stdClass();
$data->forum = $forum;
$data->attachmentcount = $attachmentcount;
throw new \core\message\inbound\processing_failed_exception('messageinboundfilecountexceeded', 'mod_forum', $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 += $attachment->filesize;
}
if ($forum->maxbytes < $filesize) {
// Too many attachments.
mtrace("--> User attached {$filesize} bytes of files when only {$forum->maxbytes} where allowed. "
. "Rejecting e-mail.");
$data = new \stdClass();
$data->forum = $forum;
$data->maxbytes = display_size($forum->maxbytes);
$data->filesize = display_size($filesize);
throw new \core\message\inbound\processing_failed_exception('messageinboundfilesizeexceeded', 'mod_forum', $data);
}
}
// Process any files in the message itself.
if (!empty($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.
$addpost->id = forum_add_new_post($addpost, true);
// Log the new post creation.
$params = array(
'context' => $modcontext,
'objectid' => $addpost->id,
'other' => array(
'discussionid' => $discussion->id,
'forumid' => $forum->id,
'forumtype' => $forum->type,
)
);
$event = \mod_forum\event\post_created::create($params);
$event->add_record_snapshot('forum_posts', $addpost);
$event->add_record_snapshot('forum_discussions', $discussion);
$event->trigger();
mtrace("--> Created a post {$addpost->id} in {$discussion->id}.");
return $addpost;
}
