mirror of
https://github.com/WhatCD/Gazelle.git
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335 lines
14 KiB
PHP
335 lines
14 KiB
PHP
<?
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class Subscriptions {
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/**
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* Parse a post/comment body for quotes and notify all quoted users that have quote notifications enabled.
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* @param string $Body
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* @param int $PostID
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* @param string $Page
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* @param int $PageID
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*/
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public static function quote_notify($Body, $PostID, $Page, $PageID) {
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$QueryID = G::$DB->get_query_id();
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/*
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* Explanation of the parameters PageID and Page: Page contains where
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* this quote comes from and can be forums, artist, collages, requests
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* or torrents. The PageID contains the additional value that is
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* necessary for the users_notify_quoted table. The PageIDs for the
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* different Page are: forums: TopicID artist: ArtistID collages:
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* CollageID requests: RequestID torrents: GroupID
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*/
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$Matches = array();
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preg_match_all('/\[quote(?:=(.*)(?:\|.*)?)?]|\[\/quote]/iU', $Body, $Matches, PREG_SET_ORDER);
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if (count($Matches)) {
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$Usernames = array();
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$Level = 0;
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foreach ($Matches as $M) {
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if ($M[0] != '[/quote]') {
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if ($Level == 0 && isset($M[1]) && strlen($M[1]) > 0 && preg_match(USERNAME_REGEX, $M[1])) {
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$Usernames[] = preg_replace('/(^[.,]*)|([.,]*$)/', '', $M[1]); // wut?
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}
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++$Level;
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} else {
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--$Level;
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}
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}
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}
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// remove any dupes in the array (the fast way)
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$Usernames = array_flip(array_flip($Usernames));
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G::$DB->query("
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SELECT m.ID
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FROM users_main AS m
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LEFT JOIN users_info AS i ON i.UserID = m.ID
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WHERE m.Username IN ('" . implode("', '", $Usernames) . "')
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AND i.NotifyOnQuote = '1'
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AND i.UserID != " . G::$LoggedUser['ID']);
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$Results = G::$DB->to_array();
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foreach ($Results as $Result) {
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$UserID = db_string($Result['ID']);
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$QuoterID = db_string(G::$LoggedUser['ID']);
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$Page = db_string($Page);
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$PageID = db_string($PageID);
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$PostID = db_string($PostID);
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G::$DB->query("
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INSERT IGNORE INTO users_notify_quoted
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(UserID, QuoterID, Page, PageID, PostID, Date)
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VALUES
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('$UserID', '$QuoterID', '$Page', '$PageID', '$PostID', '" . sqltime() . "')");
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G::$Cache->delete_value('notify_quoted_' . $UserID);
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}
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G::$DB->set_query_id($QueryID);
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}
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/**
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* (Un)subscribe from a forum thread.
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* If UserID == 0, G::$LoggedUser[ID] is used
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* @param int $TopicID
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* @param int $UserID
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*/
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public static function subscribe($TopicID, $UserID = 0) {
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if ($UserID == 0) {
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$UserID = G::$LoggedUser['ID'];
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}
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$QueryID = G::$DB->get_query_id();
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$UserSubscriptions = self::get_subscriptions();
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$Key = self::has_subscribed($TopicID);
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if ($Key !== false) {
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G::$DB->query('DELETE FROM users_subscriptions WHERE UserID = ' . db_string($UserID) . ' AND TopicID = ' . db_string($TopicID));
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unset($UserSubscriptions[$Key]);
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} else {
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G::$DB->query("INSERT IGNORE INTO users_subscriptions (UserID, TopicID) VALUES ($UserID, " . db_string($TopicID) . ")");
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array_push($UserSubscriptions, $TopicID);
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}
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G::$Cache->replace_value('subscriptions_user_' . $UserID, $UserSubscriptions, 0);
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G::$Cache->delete_value('subscriptions_user_new_' . $UserID);
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G::$DB->set_query_id($QueryID);
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}
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/**
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* (Un)subscribe from comments.
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* If UserID == 0, G::$LoggedUser[ID] is used
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* @param string $Page 'artist', 'collages', 'requests' or 'torrents'
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* @param int $PageID ArtistID, CollageID, RequestID or GroupID
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* @param int $UserID
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*/
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public static function subscribe_comments($Page, $PageID, $UserID = 0) {
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if ($UserID == 0) {
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$UserID = G::$LoggedUser['ID'];
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}
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$QueryID = G::$DB->get_query_id();
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$UserCommentSubscriptions = self::get_comment_subscriptions();
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$Key = self::has_subscribed_comments($Page, $PageID);
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if ($Key !== false) {
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G::$DB->query("DELETE FROM users_subscriptions_comments WHERE UserID = " . db_string($UserID) . " AND Page = '" . db_string($Page) . "' AND PageID = " . db_string($PageID));
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unset($UserCommentSubscriptions[$Key]);
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} else {
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G::$DB->query("INSERT IGNORE INTO users_subscriptions_comments (UserID, Page, PageID) VALUES ($UserID, '" . db_string($Page) . "', " . db_string($PageID) . ")");
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array_push($UserCommentSubscriptions, array($Page, $PageID));
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}
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G::$Cache->replace_value('subscriptions_comments_user_' . $UserID, $UserCommentSubscriptions, 0);
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G::$Cache->delete_value('subscriptions_comments_user_new_' . $UserID);
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G::$DB->set_query_id($QueryID);
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}
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/**
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* Read $UserID's subscriptions. If the cache key isn't set, it gets filled.
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* If UserID == 0, G::$LoggedUser[ID] is used
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* @param int $UserID
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* @return array Array of TopicIDs
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*/
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public static function get_subscriptions($UserID = 0) {
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if ($UserID == 0) {
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$UserID = G::$LoggedUser['ID'];
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}
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$QueryID = G::$DB->get_query_id();
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$UserSubscriptions = G::$Cache->get_value('subscriptions_user_' . $UserID);
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if ($UserSubscriptions === false) {
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G::$DB->query('SELECT TopicID FROM users_subscriptions WHERE UserID = ' . db_string($UserID));
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$UserSubscriptions = G::$DB->collect(0);
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G::$Cache->cache_value('subscriptions_user_' . $UserID, $UserSubscriptions, 0);
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}
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G::$DB->set_query_id($QueryID);
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return $UserSubscriptions;
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}
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/**
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* Same as self::get_subscriptions, but for comment subscriptions
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* @param int $UserID
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* @return array Array of ($Page, $PageID)
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*/
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public static function get_comment_subscriptions($UserID = 0) {
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if ($UserID == 0) {
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$UserID = G::$LoggedUser['ID'];
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}
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$QueryID = G::$DB->get_query_id();
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$UserCommentSubscriptions = G::$Cache->get_value('subscriptions_comments_user_' . $UserID);
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if ($UserCommentSubscriptions === false) {
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G::$DB->query('SELECT Page, PageID FROM users_subscriptions_comments WHERE UserID = ' . db_string($UserID));
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$UserCommentSubscriptions = G::$DB->to_array(false, MYSQLI_NUM);
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G::$Cache->cache_value('subscriptions_comments_user_' . $UserID, $UserCommentSubscriptions, 0);
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}
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G::$DB->set_query_id($QueryID);
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return $UserCommentSubscriptions;
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}
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/**
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* Returns whether or not the current user has new subscriptions. This handles both forum and comment subscriptions.
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* @return int Number of unread subscribed threads/comments
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*/
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public static function has_new_subscriptions() {
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$QueryID = G::$DB->get_query_id();
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$NewSubscriptions = G::$Cache->get_value('subscriptions_user_new_' . G::$LoggedUser['ID']);
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if ($NewSubscriptions === false) {
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// forum subscriptions
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G::$DB->query("SELECT COUNT(1)
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FROM users_subscriptions AS s
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LEFT JOIN forums_last_read_topics AS l ON l.UserID = s.UserID AND l.TopicID = s.TopicID
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JOIN forums_topics AS t ON t.ID = s.TopicID
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JOIN forums AS f ON f.ID = t.ForumID
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WHERE " . Forums::user_forums_sql() . "
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AND IF(t.IsLocked = '1' AND t.IsSticky = '0'" . ", t.LastPostID, IF(l.PostID IS NULL, 0, l.PostID)) < t.LastPostID
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AND s.UserID = " . G::$LoggedUser['ID']);
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list($NewForumSubscriptions) = G::$DB->next_record();
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// comment subscriptions
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G::$DB->query("SELECT COUNT(1)
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FROM users_subscriptions_comments AS s
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LEFT JOIN users_comments_last_read AS lr ON lr.UserID = s.UserID AND lr.Page = s.Page AND lr.PageID = s.PageID
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LEFT JOIN comments AS c ON c.ID = (SELECT MAX(ID) FROM comments WHERE Page = s.Page AND PageID = s.PageID)
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LEFT JOIN collages AS co ON s.Page = 'collages' AND co.ID = s.PageID
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WHERE s.UserID = " . G::$LoggedUser['ID'] . "
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AND (s.Page != 'collages' OR co.Deleted = '0')
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AND IF(lr.PostID IS NULL, 0, lr.PostID) < c.ID");
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list($NewCommentSubscriptions) = G::$DB->next_record();
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$NewSubscriptions = $NewForumSubscriptions + $NewCommentSubscriptions;
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G::$Cache->cache_value('subscriptions_user_new_' . G::$LoggedUser['ID'], $NewSubscriptions, 0);
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}
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G::$DB->set_query_id($QueryID);
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return (int)$NewSubscriptions;
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}
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/**
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* Returns whether or not the current user has new quote notifications.
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* @return int Number of unread quote notifications
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*/
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public static function has_new_quote_notifications() {
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$QuoteNotificationsCount = G::$Cache->get_value('notify_quoted_' . G::$LoggedUser['ID']);
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if ($QuoteNotificationsCount === false) {
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$sql = "
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SELECT COUNT(1)
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FROM users_notify_quoted AS q
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LEFT JOIN forums_topics AS t ON t.ID = q.PageID
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LEFT JOIN forums AS f ON f.ID = t.ForumID
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LEFT JOIN collages AS c ON q.Page = 'collages' AND c.ID = q.PageID
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WHERE q.UserID = " . G::$LoggedUser['ID'] . "
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AND q.UnRead
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AND (q.Page != 'forums' OR " . Forums::user_forums_sql() . ")
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AND (q.Page != 'collages' OR c.Deleted = '0')";
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$QueryID = G::$DB->get_query_id();
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G::$DB->query($sql);
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list($QuoteNotificationsCount) = G::$DB->next_record();
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G::$DB->set_query_id($QueryID);
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G::$Cache->cache_value('notify_quoted_' . G::$LoggedUser['ID'], $QuoteNotificationsCount, 0);
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}
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return (int)$QuoteNotificationsCount;
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}
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/**
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* Returns the key which holds this $TopicID in the subscription array.
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* Use type-aware comparison operators with this! (ie. if (self::has_subscribed($TopicID) !== false) { ... })
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* @param int $TopicID
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* @return bool|int
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*/
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public static function has_subscribed($TopicID) {
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$UserSubscriptions = self::get_subscriptions();
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return array_search($TopicID, $UserSubscriptions);
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}
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/**
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* Same as has_subscribed, but for comment subscriptions.
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* @param string $Page 'artist', 'collages', 'requests' or 'torrents'
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* @param int $PageID
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* @return bool|int
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*/
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public static function has_subscribed_comments($Page, $PageID) {
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$UserCommentSubscriptions = self::get_comment_subscriptions();
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return array_search(array($Page, $PageID), $UserCommentSubscriptions);
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}
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/**
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* Clear the subscription cache for all subscribers of a forum thread or artist/collage/request/torrent comments.
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* @param type $Page 'forums', 'artist', 'collages', 'requests' or 'torrents'
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* @param type $PageID TopicID, ArtistID, CollageID, RequestID or GroupID, respectively
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*/
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public static function flush_subscriptions($Page, $PageID) {
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$QueryID = G::$DB->get_query_id();
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if ($Page == 'forums') {
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G::$DB->query("SELECT UserID FROM users_subscriptions WHERE TopicID = '$PageID'");
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} else {
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G::$DB->query("SELECT UserID FROM users_subscriptions_comments WHERE Page = '$Page' AND PageID = '$PageID'");
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}
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$Subscribers = G::$DB->collect('UserID');
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foreach($Subscribers as $Subscriber) {
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G::$Cache->delete_value('subscriptions_user_new_'.$Subscriber);
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}
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G::$DB->set_query_id($QueryID);
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}
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/**
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* Move all $Page subscriptions from $OldPageID to $NewPageID (for example when merging torrent groups).
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* Passing $NewPageID = null will delete the subscriptions.
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* @param string $Page 'forums', 'artist', 'collages', 'requests' or 'torrents'
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* @param int $OldPageID TopicID, ArtistID, CollageID, RequestID or GroupID, respectively
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* @param int|null $NewPageID As $OldPageID, or null to delete the subscriptions
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*/
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public static function move_subscriptions($Page, $OldPageID, $NewPageID) {
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self::flush_subscriptions($Page, $OldPageID);
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$QueryID = G::$DB->get_query_id();
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if ($Page == 'forums') {
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if ($NewPageID !== null) {
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G::$DB->query("UPDATE IGNORE users_subscriptions SET TopicID = '$NewPageID' WHERE TopicID = '$OldPageID'");
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// explanation see below
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G::$DB->query("UPDATE IGNORE forums_last_read_topics SET TopicID = $NewPageID WHERE TopicID = $OldPageID");
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G::$DB->query("
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SELECT UserID, MIN(PostID)
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FROM forums_last_read_topics
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WHERE TopicID IN ($OldPageID, $NewPageID)
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GROUP BY UserID
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HAVING COUNT(1) = 2");
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$Results = G::$DB->to_array(false, MYSQLI_NUM);
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foreach ($Results as $Result) {
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G::$DB->query("UPDATE forums_last_read_topics SET PostID = $Result[1] WHERE TopicID = $NewPageID AND UserID = $Result[0]");
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}
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}
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G::$DB->query("DELETE FROM users_subscriptions WHERE TopicID = '$OldPageID'");
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G::$DB->query("DELETE FROM forums_last_read_topics WHERE TopicID = $OldPageID");
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} else {
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if ($NewPageID !== null) {
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G::$DB->query("UPDATE IGNORE users_subscriptions_comments SET PageID = '$NewPageID' WHERE Page = '$Page' AND PageID = '$OldPageID'");
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// last read handling
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// 1) update all rows that have no key collisions (i.e. users that haven't previously read both pages or if there are only comments on one page)
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G::$DB->query("UPDATE IGNORE users_comments_last_read SET PageID = '$NewPageID' WHERE Page = '$Page' AND PageID = $OldPageID");
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// 2) get all last read records with key collisions (i.e. there are records for one user for both PageIDs)
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G::$DB->query("
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SELECT UserID, MIN(PostID)
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FROM users_comments_last_read
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WHERE Page = '$Page'
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AND PageID IN ($OldPageID, $NewPageID)
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GROUP BY UserID
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HAVING COUNT(1) = 2");
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$Results = G::$DB->to_array(false, MYSQLI_NUM);
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// 3) update rows for those people found in 2) to the earlier post
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foreach ($Results as $Result) {
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G::$DB->query("UPDATE users_comments_last_read SET PostID = $Result[1] WHERE Page = '$Page' AND PageID = $NewPageID AND UserID = $Result[0]");
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}
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}
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G::$DB->query("DELETE FROM users_subscriptions_comments WHERE Page = '$Page' AND PageID = '$OldPageID'");
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G::$DB->query("DELETE FROM users_comments_last_read WHERE Page = '$Page' AND PageID = '$OldPageID'");
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}
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G::$DB->set_query_id($QueryID);
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}
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/**
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* Clear the quote notification cache for all subscribers of a forum thread or artist/collage/request/torrent comments.
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* @param string $Page 'forums', 'artist', 'collages', 'requests' or 'torrents'
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* @param int $PageID TopicID, ArtistID, CollageID, RequestID or GroupID, respectively
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*/
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public static function flush_quote_notifications($Page, $PageID) {
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$QueryID = G::$DB->get_query_id();
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G::$DB->query("SELECT UserID FROM users_notify_quoted WHERE Page = '$Page' AND PageID = $PageID");
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$Subscribers = G::$DB->collect('UserID');
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foreach($Subscribers as $Subscriber) {
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G::$Cache->delete_value('notify_quoted_'.$Subscriber);
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}
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G::$DB->set_query_id($QueryID);
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}
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}
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