if ($miaprofile) {
    $miaprofile->emit_requires($moodlemia);
}
// #marginalia end
echo $OUTPUT->header();
// checkup
if (!empty($parent) && !forum_user_can_see_post($forum, $discussion, $post, null, $cm)) {
    print_error('cannotreply', 'forum');
}
if (empty($parent) && empty($edit) && !forum_user_can_post_discussion($forum, $groupid, -1, $cm, $modcontext)) {
    print_error('cannotcreatediscussion', 'forum');
}
if ($forum->type == 'qanda' && !has_capability('mod/forum:viewqandawithoutposting', $modcontext) && !empty($discussion->id) && !forum_user_has_posted($forum->id, $discussion->id, $USER->id)) {
    echo $OUTPUT->notification(get_string('qandanotify', 'forum'));
}
forum_check_throttling($forum, $cm);
if (!empty($parent)) {
    if (!($discussion = $DB->get_record('forum_discussions', array('id' => $parent->discussion)))) {
        print_error('notpartofdiscussion', 'forum');
    }
    // #marginalia begin
    $moodlemia = moodle_marginalia::get_instance();
    $miaprofile = $moodlemia->get_profile($PAGE->url->out(false));
    if ($miaprofile) {
        $miaprofile->emit_body();
        $miaprofile->emit_margin_controls();
    }
    // #marginalia end
    forum_print_post($parent, $discussion, $forum, $cm, $course, false, false, false);
    if (empty($post->edit)) {
        if ($forum->type != 'qanda' || forum_user_can_see_discussion($forum, $discussion, $modcontext)) {

// from now on user must be logged on properly
if (!($cm = get_coursemodule_from_instance('forum', $forum->id, $course->id))) {
    // For the logs
    print_error('invalidcoursemodule');
}
$modcontext = context_module::instance($cm->id);
require_login($course, false, $cm);
if (isguestuser()) {
    // just in case
    print_error('noguest');
}
if (!isset($forum->maxattachments)) {
    // TODO - delete this once we add a field to the forum table
    $forum->maxattachments = 3;
}
$thresholdwarning = forum_check_throttling($forum, $cm);
$mform_post = new mod_forum_post_form('post.php', array('course' => $course, 'cm' => $cm, 'coursecontext' => $coursecontext, 'modcontext' => $modcontext, 'forum' => $forum, 'post' => $post, 'subscribe' => \mod_forum\subscriptions::is_subscribed($USER->id, $forum, null, $cm), 'thresholdwarning' => $thresholdwarning, 'edit' => $edit), 'post', '', array('id' => 'mformforum'));
$draftitemid = file_get_submitted_draft_itemid('attachments');
file_prepare_draft_area($draftitemid, $modcontext->id, 'mod_forum', 'attachment', empty($post->id) ? null : $post->id, mod_forum_post_form::attachment_options($forum));
//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', 'forum', $data) . ')</span></p>';
    } else {
        $data->name = fullname($USER);
        $post->message .= "\n\n(" . get_string('editedby', 'forum', $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('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 ||
//.........这里部分代码省略.........

    /**
     * Add a new discussion into an existing forum.
     *
     * @param int $forumid the forum instance id
     * @param string $subject new discussion subject
     * @param string $message new discussion message (only html format allowed)
     * @param int $groupid the user course group
     * @param array $options optional settings
     * @return array of warnings and the new discussion id
     * @since Moodle 3.0
     * @throws moodle_exception
     */
    public static function add_discussion($forumid, $subject, $message, $groupid = -1, $options = array()) {
        global $DB, $CFG;
        require_once($CFG->dirroot . "/mod/forum/lib.php");

        $params = self::validate_parameters(self::add_discussion_parameters(),
                                            array(
                                                'forumid' => $forumid,
                                                'subject' => $subject,
                                                'message' => $message,
                                                'groupid' => $groupid,
                                                '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();

        // Request and permission validation.
        $forum = $DB->get_record('forum', array('id' => $params['forumid']), '*', MUST_EXIST);
        list($course, $cm) = get_course_and_cm_from_instance($forum, 'forum');

        $context = context_module::instance($cm->id);
        self::validate_context($context);

        // Normalize group.
        if (!groups_get_activity_groupmode($cm)) {
            // Groups not supported, force to -1.
            $groupid = -1;
        } else {
            // Check if we receive the default or and empty value for groupid,
            // in this case, get the group for the user in the activity.
            if ($groupid === -1 or empty($params['groupid'])) {
                $groupid = groups_get_activity_group($cm);
            } else {
                // Here we rely in the group passed, forum_user_can_post_discussion will validate the group.
                $groupid = $params['groupid'];
            }
        }

        if (!forum_user_can_post_discussion($forum, $groupid, -1, $cm, $context)) {
            throw new moodle_exception('cannotcreatediscussion', 'forum');
        }

        $thresholdwarning = forum_check_throttling($forum, $cm);
        forum_check_blocking_threshold($thresholdwarning);

        // Create the discussion.
        $discussion = new stdClass();
        $discussion->course = $course->id;
        $discussion->forum = $forum->id;
        $discussion->message = $params['message'];
        $discussion->messageformat = FORMAT_HTML;   // Force formatting for now.
        $discussion->messagetrust = trusttext_trusted($context);
        $discussion->itemid = 0;
        $discussion->groupid = $groupid;
        $discussion->mailnow = 0;
        $discussion->subject = $params['subject'];
        $discussion->name = $discussion->subject;
        $discussion->timestart = 0;
        $discussion->timeend = 0;

        if ($discussionid = forum_add_discussion($discussion)) {

            $discussion->id = $discussionid;

            // Trigger events and completion.

            $params = array(
                'context' => $context,
                'objectid' => $discussion->id,
                'other' => array(
                    'forumid' => $forum->id,
                )
            );
            $event = \mod_forum\event\discussion_created::create($params);
//.........这里部分代码省略.........

    /**
     * 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'];
//.........这里部分代码省略.........