/**
* Test that the discussion subscription cache can filled user-at-a-time.
*/
public function test_discussion_subscription_cache_fill()
{
global $DB;
$this->resetAfterTest(true);
// Create a course, with a twf.
$course = $this->getDataGenerator()->create_course();
$options = array('course' => $course->id, 'forcesubscribe' => FORUM_INITIALSUBSCRIBE);
$twf = $this->getDataGenerator()->create_module('twf', $options);
// Create some users.
$users = $this->helper_create_users($course, 20);
// Post some discussions to the twf.
$discussions = array();
$author = $users[0];
for ($i = 0; $i < 20; $i++) {
list($discussion, $post) = $this->helper_post_to_twf($twf, $author);
$discussions[] = $discussion;
}
// Unsubscribe half the users from the half the discussions.
$twfcount = 0;
$usercount = 0;
foreach ($discussions as $data) {
if ($twfcount % 2) {
continue;
}
foreach ($users as $user) {
if ($usercount % 2) {
continue;
}
\mod_twf\subscriptions::unsubscribe_user_from_discussion($user->id, $discussion);
$usercount++;
}
$twfcount++;
}
// Reset the subscription caches.
\mod_twf\subscriptions::reset_twf_cache();
\mod_twf\subscriptions::reset_discussion_cache();
$startcount = $DB->perf_get_reads();
// Now fetch some subscriptions from that twf - these should use
// the cache and not perform additional queries.
foreach ($users as $user) {
$result = \mod_twf\subscriptions::fetch_discussion_subscription($twf->id, $user->id);
$this->assertInternalType('array', $result);
}
$finalcount = $DB->perf_get_reads();
$this->assertEquals(20, $finalcount - $startcount);
}
/**
* Function to be run periodically according to the scheduled task.
*
* Finds all posts that have yet to be mailed out, and mails them
* out to all subscribers as well as other maintance tasks.
*
* NOTE: Since 2.7.2 this function is run by scheduled task rather
* than standard cron.
*
* @todo MDL-44734 The function will be split up into seperate tasks.
*/
function twf_cron()
{
global $CFG, $USER, $DB;
$site = get_site();
// All users that are subscribed to any post that needs sending,
// please increase $CFG->extramemorylimit on large sites that
// send notifications to a large number of users.
$users = array();
$userscount = 0;
// Cached user counter - count($users) in PHP is horribly slow!!!
// Status arrays.
$mailcount = array();
$errorcount = array();
// caches
$discussions = array();
$twfs = array();
$courses = array();
$coursemodules = array();
$subscribedusers = array();
$messageinboundhandlers = array();
// Posts older than 2 days will not be mailed. This is to avoid the problem where
// cron has not been running for a long time, and then suddenly people are flooded
// with mail from the past few weeks or months
$timenow = time();
$endtime = $timenow - $CFG->maxeditingtime;
$starttime = $endtime - 48 * 3600;
// Two days earlier
// Get the list of twf subscriptions for per-user per-twf maildigest settings.
$digestsset = $DB->get_recordset('twf_digests', null, '', 'id, userid, twf, maildigest');
$digests = array();
foreach ($digestsset as $thisrow) {
if (!isset($digests[$thisrow->twf])) {
$digests[$thisrow->twf] = array();
}
$digests[$thisrow->twf][$thisrow->userid] = $thisrow->maildigest;
}
$digestsset->close();
// Create the generic messageinboundgenerator.
$messageinboundgenerator = new \core\message\inbound\address_manager();
$messageinboundgenerator->set_handler('\\mod_twf\\message\\inbound\\reply_handler');
if ($posts = twf_get_unmailed_posts($starttime, $endtime, $timenow)) {
// Mark them all now as being mailed. It's unlikely but possible there
// might be an error later so that a post is NOT actually mailed out,
// but since mail isn't crucial, we can accept this risk. Doing it now
// prevents the risk of duplicated mails, which is a worse problem.
if (!twf_mark_old_posts_as_mailed($endtime)) {
mtrace('Errors occurred while trying to mark some posts as being mailed.');
return false;
// Don't continue trying to mail them, in case we are in a cron loop
}
// checking post validity, and adding users to loop through later
foreach ($posts as $pid => $post) {
$discussionid = $post->discussion;
if (!isset($discussions[$discussionid])) {
if ($discussion = $DB->get_record('twf_discussions', array('id' => $post->discussion))) {
$discussions[$discussionid] = $discussion;
\mod_twf\subscriptions::fill_subscription_cache($discussion->twf);
\mod_twf\subscriptions::fill_discussion_subscription_cache($discussion->twf);
} else {
mtrace('Could not find discussion ' . $discussionid);
unset($posts[$pid]);
continue;
}
}
$twfid = $discussions[$discussionid]->twf;
if (!isset($twfs[$twfid])) {
if ($twf = $DB->get_record('twf', array('id' => $twfid))) {
$twfs[$twfid] = $twf;
} else {
mtrace('Could not find twf ' . $twfid);
unset($posts[$pid]);
continue;
}
}
$courseid = $twfs[$twfid]->course;
if (!isset($courses[$courseid])) {
if ($course = $DB->get_record('course', array('id' => $courseid))) {
$courses[$courseid] = $course;
} else {
mtrace('Could not find course ' . $courseid);
unset($posts[$pid]);
continue;
}
}
if (!isset($coursemodules[$twfid])) {
if ($cm = get_coursemodule_from_instance('twf', $twfid, $courseid)) {
$coursemodules[$twfid] = $cm;
} else {
mtrace('Could not find course module for twf ' . $twfid);
unset($posts[$pid]);
continue;
}
}
// Save the Inbound Message datakey here to reduce DB queries later.
$messageinboundgenerator->set_data($pid);
$messageinboundhandlers[$pid] = $messageinboundgenerator->fetch_data_key();
// Caching subscribed users of each twf.
if (!isset($subscribedusers[$twfid])) {
$modcontext = context_module::instance($coursemodules[$twfid]->id);
if ($subusers = \mod_twf\subscriptions::fetch_subscribed_users($twfs[$twfid], 0, $modcontext, 'u.*', true)) {
foreach ($subusers as $postuser) {
// this user is subscribed to this twf
$subscribedusers[$twfid][$postuser->id] = $postuser->id;
$userscount++;
if ($userscount > FORUM_CRON_USER_CACHE) {
// Store minimal user info.
$minuser = new stdClass();
$minuser->id = $postuser->id;
$users[$postuser->id] = $minuser;
} else {
// Cache full user record.
twf_cron_minimise_user_record($postuser);
$users[$postuser->id] = $postuser;
}
}
// Release memory.
unset($subusers);
unset($postuser);
}
}
$mailcount[$pid] = 0;
$errorcount[$pid] = 0;
}
}
if ($users && $posts) {
$urlinfo = parse_url($CFG->wwwroot);
$hostname = $urlinfo['host'];
foreach ($users as $userto) {
// Terminate if processing of any account takes longer than 2 minutes.
core_php_time_limit::raise(120);
mtrace('Processing user ' . $userto->id);
// Init user caches - we keep the cache for one cycle only, otherwise it could consume too much memory.
if (isset($userto->username)) {
$userto = clone $userto;
} else {
$userto = $DB->get_record('user', array('id' => $userto->id));
twf_cron_minimise_user_record($userto);
}
$userto->viewfullnames = array();
$userto->canpost = array();
$userto->markposts = array();
// Setup this user so that the capabilities are cached, and environment matches receiving user.
cron_setup_user($userto);
// Reset the caches.
foreach ($coursemodules as $twfid => $unused) {
$coursemodules[$twfid]->cache = new stdClass();
$coursemodules[$twfid]->cache->caps = array();
unset($coursemodules[$twfid]->uservisible);
}
foreach ($posts as $pid => $post) {
$discussion = $discussions[$post->discussion];
$twf = $twfs[$discussion->twf];
$course = $courses[$twf->course];
$cm =& $coursemodules[$twf->id];
// Do some checks to see if we can bail out now.
// Only active enrolled users are in the list of subscribers.
// This does not necessarily mean that the user is subscribed to the twf or to the discussion though.
if (!isset($subscribedusers[$twf->id][$userto->id])) {
// The user does not subscribe to this twf.
continue;
}
if (!\mod_twf\subscriptions::is_subscribed($userto->id, $twf, $post->discussion, $coursemodules[$twf->id])) {
// The user does not subscribe to this twf, or to this specific discussion.
continue;
}
if ($subscriptiontime = \mod_twf\subscriptions::fetch_discussion_subscription($twf->id, $userto->id)) {
// Skip posts if the user subscribed to the discussion after it was created.
if (isset($subscriptiontime[$post->discussion]) && $subscriptiontime[$post->discussion] > $post->created) {
continue;
}
}
// Don't send email if the twf is Q&A and the user has not posted.
// Initial topics are still mailed.
if ($twf->type == 'qanda' && !twf_get_user_posted_time($discussion->id, $userto->id) && $pid != $discussion->firstpost) {
mtrace('Did not email ' . $userto->id . ' because user has not posted in discussion');
continue;
}
// Get info about the sending user.
if (array_key_exists($post->userid, $users)) {
// We might know the user already.
$userfrom = $users[$post->userid];
if (!isset($userfrom->idnumber)) {
// Minimalised user info, fetch full record.
$userfrom = $DB->get_record('user', array('id' => $userfrom->id));
twf_cron_minimise_user_record($userfrom);
}
} else {
if ($userfrom = $DB->get_record('user', array('id' => $post->userid))) {
twf_cron_minimise_user_record($userfrom);
// Fetch only once if possible, we can add it to user list, it will be skipped anyway.
if ($userscount <= FORUM_CRON_USER_CACHE) {
$userscount++;
$users[$userfrom->id] = $userfrom;
}
} else {
mtrace('Could not find user ' . $post->userid . ', author of post ' . $post->id . '. Unable to send message.');
continue;
}
}
// Note: If we want to check that userto and userfrom are not the same person this is probably the spot to do it.
// Setup global $COURSE properly - needed for roles and languages.
cron_setup_user($userto, $course);
// Fill caches.
if (!isset($userto->viewfullnames[$twf->id])) {
$modcontext = context_module::instance($cm->id);
$userto->viewfullnames[$twf->id] = has_capability('moodle/site:viewfullnames', $modcontext);
}
if (!isset($userto->canpost[$discussion->id])) {
$modcontext = context_module::instance($cm->id);
$userto->canpost[$discussion->id] = twf_user_can_post($twf, $discussion, $userto, $cm, $course, $modcontext);
}
if (!isset($userfrom->groups[$twf->id])) {
if (!isset($userfrom->groups)) {
$userfrom->groups = array();
if (isset($users[$userfrom->id])) {
$users[$userfrom->id]->groups = array();
}
}
$userfrom->groups[$twf->id] = groups_get_all_groups($course->id, $userfrom->id, $cm->groupingid);
if (isset($users[$userfrom->id])) {
$users[$userfrom->id]->groups[$twf->id] = $userfrom->groups[$twf->id];
}
}
// Make sure groups allow this user to see this email.
if ($discussion->groupid > 0 and $groupmode = groups_get_activity_groupmode($cm, $course)) {
// Groups are being used.
if (!groups_group_exists($discussion->groupid)) {
// Can't find group - be safe and don't this message.
continue;
}
if (!groups_is_member($discussion->groupid) and !has_capability('moodle/site:accessallgroups', $modcontext)) {
// Do not send posts from other groups when in SEPARATEGROUPS or VISIBLEGROUPS.
continue;
}
}
// Make sure we're allowed to see the post.
if (!twf_user_can_see_post($twf, $discussion, $post, null, $cm)) {
mtrace('User ' . $userto->id . ' can not see ' . $post->id . '. Not sending message.');
continue;
}
// OK so we need to send the email.
// Does the user want this post in a digest? If so postpone it for now.
$maildigest = twf_get_user_maildigest_bulk($digests, $userto, $twf->id);
if ($maildigest > 0) {
// This user wants the mails to be in digest form.
$queue = new stdClass();
$queue->userid = $userto->id;
$queue->discussionid = $discussion->id;
$queue->postid = $post->id;
$queue->timemodified = $post->created;
$DB->insert_record('twf_queue', $queue);
continue;
}
// Prepare to actually send the post now, and build up the content.
$cleantwfname = str_replace('"', "'", strip_tags(format_string($twf->name)));
$userfrom->customheaders = array('List-Id: "' . $cleantwfname . '" <moodletwf' . $twf->id . '@' . $hostname . '>', 'List-Help: ' . $CFG->wwwroot . '/mod/twf/view.php?f=' . $twf->id, 'Message-ID: ' . twf_get_email_message_id($post->id, $userto->id, $hostname), 'X-Course-Id: ' . $course->id, 'X-Course-Name: ' . format_string($course->fullname, true), 'Precedence: Bulk', 'X-Auto-Response-Suppress: All', 'Auto-Submitted: auto-generated');
if ($post->parent) {
// This post is a reply, so add headers for threading (see MDL-22551).
$userfrom->customheaders[] = 'In-Reply-To: ' . twf_get_email_message_id($post->parent, $userto->id, $hostname);
$userfrom->customheaders[] = 'References: ' . twf_get_email_message_id($post->parent, $userto->id, $hostname);
}
$shortname = format_string($course->shortname, true, array('context' => context_course::instance($course->id)));
// Generate a reply-to address from using the Inbound Message handler.
$replyaddress = null;
if ($userto->canpost[$discussion->id] && array_key_exists($post->id, $messageinboundhandlers)) {
$messageinboundgenerator->set_data($post->id, $messageinboundhandlers[$post->id]);
$replyaddress = $messageinboundgenerator->generate($userto->id);
}
$a = new stdClass();
$a->courseshortname = $shortname;
$a->twfname = $cleantwfname;
$a->subject = format_string($post->subject, true);
$postsubject = html_to_text(get_string('postmailsubject', 'twf', $a), 0);
$posttext = twf_make_mail_text($course, $cm, $twf, $discussion, $post, $userfrom, $userto, false, $replyaddress);
$posthtml = twf_make_mail_html($course, $cm, $twf, $discussion, $post, $userfrom, $userto, $replyaddress);
// Send the post now!
mtrace('Sending ', '');
$eventdata = new \core\message\message();
$eventdata->component = 'mod_twf';
$eventdata->name = 'posts';
$eventdata->userfrom = $userfrom;
$eventdata->userto = $userto;
$eventdata->subject = $postsubject;
$eventdata->fullmessage = $posttext;
$eventdata->fullmessageformat = FORMAT_PLAIN;
$eventdata->fullmessagehtml = $posthtml;
$eventdata->notification = 1;
$eventdata->replyto = $replyaddress;
if (!empty($replyaddress)) {
// Add extra text to email messages if they can reply back.
$textfooter = "\n\n" . get_string('replytopostbyemail', 'mod_twf');
$htmlfooter = html_writer::tag('p', get_string('replytopostbyemail', 'mod_twf'));
$additionalcontent = array('fullmessage' => array('footer' => $textfooter), 'fullmessagehtml' => array('footer' => $htmlfooter));
$eventdata->set_additional_content('email', $additionalcontent);
}
// If twf_replytouser is not set then send mail using the noreplyaddress.
if (empty($CFG->twf_replytouser)) {
$eventdata->userfrom = core_user::get_noreply_user();
}
$smallmessagestrings = new stdClass();
$smallmessagestrings->user = fullname($userfrom);
$smallmessagestrings->twfname = "{$shortname}: " . format_string($twf->name, true) . ": " . $discussion->name;
$smallmessagestrings->message = $post->message;
// Make sure strings are in message recipients language.
$eventdata->smallmessage = get_string_manager()->get_string('smallmessage', 'twf', $smallmessagestrings, $userto->lang);
$contexturl = new moodle_url('/mod/twf/discuss.php', array('d' => $discussion->id), 'p' . $post->id);
$eventdata->contexturl = $contexturl->out();
$eventdata->contexturlname = $discussion->name;
$mailresult = message_send($eventdata);
if (!$mailresult) {
mtrace("Error: mod/twf/lib.php twf_cron(): Could not send out mail for id {$post->id} to user {$userto->id}" . " ({$userto->email}) .. not trying again.");
$errorcount[$post->id]++;
} else {
$mailcount[$post->id]++;
// Mark post as read if twf_usermarksread is set off.
if (!$CFG->twf_usermarksread) {
$userto->markposts[$post->id] = $post->id;
}
}
mtrace('post ' . $post->id . ': ' . $post->subject);
}
// Mark processed posts as read.
twf_tp_mark_posts_read($userto, $userto->markposts);
unset($userto);
}
}
if ($posts) {
foreach ($posts as $post) {
mtrace($mailcount[$post->id] . " users were sent post {$post->id}, '{$post->subject}'");
if ($errorcount[$post->id]) {
$DB->set_field('twf_posts', 'mailed', FORUM_MAILED_ERROR, array('id' => $post->id));
}
}
}
// release some memory
unset($subscribedusers);
unset($mailcount);
unset($errorcount);
cron_setup_user();
$sitetimezone = core_date::get_server_timezone();
// Now see if there are any digest mails waiting to be sent, and if we should send them
mtrace('Starting digest processing...');
core_php_time_limit::raise(300);
// terminate if not able to fetch all digests in 5 minutes
if (!isset($CFG->digestmailtimelast)) {
// To catch the first time
set_config('digestmailtimelast', 0);
}
$timenow = time();
$digesttime = usergetmidnight($timenow, $sitetimezone) + $CFG->digestmailtime * 3600;
// Delete any really old ones (normally there shouldn't be any)
$weekago = $timenow - 7 * 24 * 3600;
$DB->delete_records_select('twf_queue', "timemodified < ?", array($weekago));
mtrace('Cleaned old digest records');
if ($CFG->digestmailtimelast < $digesttime and $timenow > $digesttime) {
mtrace('Sending twf digests: ' . userdate($timenow, '', $sitetimezone));
$digestposts_rs = $DB->get_recordset_select('twf_queue', "timemodified < ?", array($digesttime));
if ($digestposts_rs->valid()) {
// We have work to do
$usermailcount = 0;
//caches - reuse the those filled before too
$discussionposts = array();
$userdiscussions = array();
foreach ($digestposts_rs as $digestpost) {
if (!isset($posts[$digestpost->postid])) {
if ($post = $DB->get_record('twf_posts', array('id' => $digestpost->postid))) {
$posts[$digestpost->postid] = $post;
} else {
continue;
}
}
$discussionid = $digestpost->discussionid;
if (!isset($discussions[$discussionid])) {
if ($discussion = $DB->get_record('twf_discussions', array('id' => $discussionid))) {
$discussions[$discussionid] = $discussion;
} else {
continue;
}
}
$twfid = $discussions[$discussionid]->twf;
if (!isset($twfs[$twfid])) {
if ($twf = $DB->get_record('twf', array('id' => $twfid))) {
$twfs[$twfid] = $twf;
} else {
continue;
}
}
$courseid = $twfs[$twfid]->course;
if (!isset($courses[$courseid])) {
if ($course = $DB->get_record('course', array('id' => $courseid))) {
$courses[$courseid] = $course;
} else {
continue;
}
}
if (!isset($coursemodules[$twfid])) {
if ($cm = get_coursemodule_from_instance('twf', $twfid, $courseid)) {
$coursemodules[$twfid] = $cm;
} else {
continue;
}
}
$userdiscussions[$digestpost->userid][$digestpost->discussionid] = $digestpost->discussionid;
$discussionposts[$digestpost->discussionid][$digestpost->postid] = $digestpost->postid;
}
$digestposts_rs->close();
/// Finished iteration, let's close the resultset
// Data collected, start sending out emails to each user
foreach ($userdiscussions as $userid => $thesediscussions) {
core_php_time_limit::raise(120);
// terminate if processing of any account takes longer than 2 minutes
cron_setup_user();
mtrace(get_string('processingdigest', 'twf', $userid), '... ');
// First of all delete all the queue entries for this user
$DB->delete_records_select('twf_queue', "userid = ? AND timemodified < ?", array($userid, $digesttime));
// Init user caches - we keep the cache for one cycle only,
// otherwise it would unnecessarily consume memory.
if (array_key_exists($userid, $users) and isset($users[$userid]->username)) {
$userto = clone $users[$userid];
} else {
$userto = $DB->get_record('user', array('id' => $userid));
twf_cron_minimise_user_record($userto);
}
$userto->viewfullnames = array();
$userto->canpost = array();
$userto->markposts = array();
// Override the language and timezone of the "current" user, so that
// mail is customised for the receiver.
cron_setup_user($userto);
$postsubject = get_string('digestmailsubject', 'twf', format_string($site->shortname, true));
$headerdata = new stdClass();
$headerdata->sitename = format_string($site->fullname, true);
$headerdata->userprefs = $CFG->wwwroot . '/user/edit.php?id=' . $userid . '&course=' . $site->id;
$posttext = get_string('digestmailheader', 'twf', $headerdata) . "\n\n";
$headerdata->userprefs = '<a target="_blank" href="' . $headerdata->userprefs . '">' . get_string('digestmailprefs', 'twf') . '</a>';
$posthtml = "<head>";
/* foreach ($CFG->stylesheets as $stylesheet) {
//TODO: MDL-21120
$posthtml .= '<link rel="stylesheet" type="text/css" href="'.$stylesheet.'" />'."\n";
}*/
$posthtml .= "</head>\n<body id=\"email\">\n";
$posthtml .= '<p>' . get_string('digestmailheader', 'twf', $headerdata) . '</p><br /><hr size="1" noshade="noshade" />';
foreach ($thesediscussions as $discussionid) {
core_php_time_limit::raise(120);
// to be reset for each post
$discussion = $discussions[$discussionid];
$twf = $twfs[$discussion->twf];
$course = $courses[$twf->course];
$cm = $coursemodules[$twf->id];
//override language
cron_setup_user($userto, $course);
// Fill caches
if (!isset($userto->viewfullnames[$twf->id])) {
$modcontext = context_module::instance($cm->id);
$userto->viewfullnames[$twf->id] = has_capability('moodle/site:viewfullnames', $modcontext);
}
if (!isset($userto->canpost[$discussion->id])) {
$modcontext = context_module::instance($cm->id);
$userto->canpost[$discussion->id] = twf_user_can_post($twf, $discussion, $userto, $cm, $course, $modcontext);
}
$strtwfs = get_string('twfs', 'twf');
$canunsubscribe = !\mod_twf\subscriptions::is_forcesubscribed($twf);
$canreply = $userto->canpost[$discussion->id];
$shortname = format_string($course->shortname, true, array('context' => context_course::instance($course->id)));
$posttext .= "\n \n";
$posttext .= '=====================================================================';
$posttext .= "\n \n";
$posttext .= "{$shortname} -> {$strtwfs} -> " . format_string($twf->name, true);
if ($discussion->name != $twf->name) {
$posttext .= " -> " . format_string($discussion->name, true);
}
$posttext .= "\n";
$posttext .= $CFG->wwwroot . '/mod/twf/discuss.php?d=' . $discussion->id;
$posttext .= "\n";
$posthtml .= "<p><font face=\"sans-serif\">" . "<a target=\"_blank\" href=\"{$CFG->wwwroot}/course/view.php?id={$course->id}\">{$shortname}</a> -> " . "<a target=\"_blank\" href=\"{$CFG->wwwroot}/mod/twf/index.php?id={$course->id}\">{$strtwfs}</a> -> " . "<a target=\"_blank\" href=\"{$CFG->wwwroot}/mod/twf/view.php?f={$twf->id}\">" . format_string($twf->name, true) . "</a>";
if ($discussion->name == $twf->name) {
$posthtml .= "</font></p>";
} else {
$posthtml .= " -> <a target=\"_blank\" href=\"{$CFG->wwwroot}/mod/twf/discuss.php?d={$discussion->id}\">" . format_string($discussion->name, true) . "</a></font></p>";
}
$posthtml .= '<p>';
$postsarray = $discussionposts[$discussionid];
sort($postsarray);
foreach ($postsarray as $postid) {
$post = $posts[$postid];
if (array_key_exists($post->userid, $users)) {
// we might know him/her already
$userfrom = $users[$post->userid];
if (!isset($userfrom->idnumber)) {
$userfrom = $DB->get_record('user', array('id' => $userfrom->id));
twf_cron_minimise_user_record($userfrom);
}
} else {
if ($userfrom = $DB->get_record('user', array('id' => $post->userid))) {
twf_cron_minimise_user_record($userfrom);
if ($userscount <= FORUM_CRON_USER_CACHE) {
$userscount++;
$users[$userfrom->id] = $userfrom;
}
} else {
mtrace('Could not find user ' . $post->userid);
continue;
}
}
if (!isset($userfrom->groups[$twf->id])) {
if (!isset($userfrom->groups)) {
$userfrom->groups = array();
if (isset($users[$userfrom->id])) {
$users[$userfrom->id]->groups = array();
}
}
$userfrom->groups[$twf->id] = groups_get_all_groups($course->id, $userfrom->id, $cm->groupingid);
if (isset($users[$userfrom->id])) {
$users[$userfrom->id]->groups[$twf->id] = $userfrom->groups[$twf->id];
}
}
// Headers to help prevent auto-responders.
$userfrom->customheaders = array("Precedence: Bulk", 'X-Auto-Response-Suppress: All', 'Auto-Submitted: auto-generated');
$maildigest = twf_get_user_maildigest_bulk($digests, $userto, $twf->id);
if ($maildigest == 2) {
// Subjects and link only
$posttext .= "\n";
$posttext .= $CFG->wwwroot . '/mod/twf/discuss.php?d=' . $discussion->id;
$by = new stdClass();
$by->name = fullname($userfrom);
$by->date = userdate($post->modified);
$posttext .= "\n" . format_string($post->subject, true) . ' ' . get_string("bynameondate", "twf", $by);
$posttext .= "\n---------------------------------------------------------------------";
$by->name = "<a target=\"_blank\" href=\"{$CFG->wwwroot}/user/view.php?id={$userfrom->id}&course={$course->id}\">{$by->name}</a>";
$posthtml .= '<div><a target="_blank" href="' . $CFG->wwwroot . '/mod/twf/discuss.php?d=' . $discussion->id . '#p' . $post->id . '">' . format_string($post->subject, true) . '</a> ' . get_string("bynameondate", "twf", $by) . '</div>';
} else {
// The full treatment
$posttext .= twf_make_mail_text($course, $cm, $twf, $discussion, $post, $userfrom, $userto, true);
$posthtml .= twf_make_mail_post($course, $cm, $twf, $discussion, $post, $userfrom, $userto, false, $canreply, true, false);
// Create an array of postid's for this user to mark as read.
if (!$CFG->twf_usermarksread) {
$userto->markposts[$post->id] = $post->id;
}
}
}
$footerlinks = array();
if ($canunsubscribe) {
$footerlinks[] = "<a href=\"{$CFG->wwwroot}/mod/twf/subscribe.php?id={$twf->id}\">" . get_string("unsubscribe", "twf") . "</a>";
} else {
$footerlinks[] = get_string("everyoneissubscribed", "twf");
}
$footerlinks[] = "<a href='{$CFG->wwwroot}/mod/twf/index.php?id={$twf->course}'>" . get_string("digestmailpost", "twf") . '</a>';
$posthtml .= "\n<div class='mdl-right'><font size=\"1\">" . implode(' ', $footerlinks) . '</font></div>';
$posthtml .= '<hr size="1" noshade="noshade" /></p>';
}
$posthtml .= '</body>';
if (empty($userto->mailformat) || $userto->mailformat != 1) {
// This user DOESN'T want to receive HTML
$posthtml = '';
}
$attachment = $attachname = '';
// Directly email twf digests rather than sending them via messaging, use the
// site shortname as 'from name', the noreply address will be used by email_to_user.
$mailresult = email_to_user($userto, $site->shortname, $postsubject, $posttext, $posthtml, $attachment, $attachname);
if (!$mailresult) {
mtrace("ERROR: mod/twf/cron.php: Could not send out digest mail to user {$userto->id} " . "({$userto->email})... not trying again.");
} else {
mtrace("success.");
$usermailcount++;
// Mark post as read if twf_usermarksread is set off
twf_tp_mark_posts_read($userto, $userto->markposts);
}
}
}
/// We have finishied all digest emails, update $CFG->digestmailtimelast
set_config('digestmailtimelast', $timenow);
}
cron_setup_user();
if (!empty($usermailcount)) {
mtrace(get_string('digestsentusers', 'twf', $usermailcount));
}
if (!empty($CFG->twf_lastreadclean)) {
$timenow = time();
if ($CFG->twf_lastreadclean + 24 * 3600 < $timenow) {
set_config('twf_lastreadclean', $timenow);
mtrace('Removing old twf read tracking info...');
twf_tp_clean_read_records();
}
} else {
set_config('twf_lastreadclean', time());
}
return true;
}