/**
* Table Definition for notice
*/
-require_once 'DB/DataObject.php';
+require_once INSTALLDIR.'/classes/Memcached_DataObject.php';
-class Notice extends DB_DataObject
+/* We keep the first three 20-notice pages, plus one for pagination check,
+ * in the memcached cache. */
+
+define('NOTICE_CACHE_WINDOW', 61);
+
+class Notice extends Memcached_DataObject
{
###START_AUTOCODE
/* the code below is auto generated do not remove the above tag */
public $id; // int(4) primary_key not_null
public $profile_id; // int(4) not_null
public $uri; // varchar(255) unique_key
- public $content; // varchar(140)
- public $rendered; // text()
- public $url; // varchar(255)
+ public $content; // varchar(140)
+ public $rendered; // text()
+ public $url; // varchar(255)
public $created; // datetime() not_null
public $modified; // timestamp() not_null default_CURRENT_TIMESTAMP
- public $reply_to; // int(4)
- public $is_local; // tinyint(1)
- public $source; // varchar(32)
+ public $reply_to; // int(4)
+ public $is_local; // tinyint(1)
+ public $source; // varchar(32)
/* Static get */
- function staticGet($k,$v=NULL) { return DB_DataObject::staticGet('Notice',$k,$v); }
+ function staticGet($k,$v=NULL) { return Memcached_DataObject::staticGet('Notice',$k,$v); }
/* the code above is auto generated do not remove the tag below */
###END_AUTOCODE
function getProfile() {
- return Profile::staticGet($this->profile_id);
+ return Profile::staticGet('id', $this->profile_id);
+ }
+
+ function delete() {
+ $this->blowCaches(true);
+ $this->blowFavesCache(true);
+ $this->blowInboxes();
+ parent::delete();
}
function saveTags() {
if (!$count) {
return true;
}
-
+
/* elide characters we don't want in the tag */
$match[1] = str_replace(array('-', '_', '.'), '', $match[1]);
}
static function saveNew($profile_id, $content, $source=NULL, $is_local=1, $reply_to=NULL, $uri=NULL) {
-
+
+ $profile = Profile::staticGet($profile_id);
+
+ if (!$profile) {
+ common_log(LOG_ERR, 'Problem saving notice. Unknown user.');
+ return _('Problem saving notice. Unknown user.');
+ }
+
+ if (common_config('throttle', 'enabled') && !Notice::checkEditThrottle($profile_id)) {
+ common_log(LOG_WARNING, 'Excessive posting by profile #' . $profile_id . '; throttled.');
+ return _('Too many notices too fast; take a breather and post again in a few minutes.');
+ }
+
+ $banned = common_config('profile', 'banned');
+
+ if ( in_array($profile_id, $banned) || in_array($profile->nickname, $banned)) {
+ common_log(LOG_WARNING, "Attempted post from banned user: $profile->nickname (user id = $profile_id).");
+ return _('You are banned from posting notices on this site.');
+ }
+
$notice = new Notice();
$notice->profile_id = $profile_id;
- $notice->is_local = $is_local;
+
+ $blacklist = common_config('public', 'blacklist');
+
+ # Blacklisted are non-false, but not 1, either
+
+ if ($blacklist && in_array($profile_id, $blacklist)) {
+ $notice->is_local = -1;
+ } else {
+ $notice->is_local = $is_local;
+ }
+
$notice->reply_to = $reply_to;
$notice->created = common_sql_now();
- $notice->content = $content;
+ $notice->content = common_shorten_links($content);
$notice->rendered = common_render_content($notice->content, $notice);
$notice->source = $source;
$notice->uri = $uri;
-
+
$id = $notice->insert();
if (!$id) {
+ common_log_db_error($notice, 'INSERT', __FILE__);
return _('Problem saving notice.');
}
$notice->uri = common_notice_uri($notice);
if (!$notice->update($orig)) {
+ common_log_db_error($notice, 'UPDATE', __FILE__);
return _('Problem saving notice.');
}
}
# XXX: do we need to change this for remote users?
-
+
common_save_replies($notice);
$notice->saveTags();
# Clear the cache for subscribed users, so they'll update at next request
# XXX: someone clever could prepend instead of clearing the cache
-
+
if (common_config('memcached', 'enabled')) {
- $cache = new Memcache();
- if ($cache->connect(common_config('memcached', 'server'), common_config('memcached', 'port'))) {
- $user = new User();
-
- $user->query('SELECT id ' .
- 'FROM user JOIN subscription ON user.id = subscription.subscriber ' .
- 'WHERE subscription.subscribed = ' . $notice->profile_id);
-
- while ($user->fetch()) {
- $cache->delete(common_cache_key('user:notices_with_friends:' . $user->id));
+ $notice->blowCaches();
+ }
+
+ $notice->addToInboxes();
+ return $notice;
+ }
+
+ static function checkEditThrottle($profile_id) {
+ $profile = Profile::staticGet($profile_id);
+ if (!$profile) {
+ return false;
+ }
+ # Get the Nth notice
+ $notice = $profile->getNotices(common_config('throttle', 'count') - 1, 1);
+ if ($notice && $notice->fetch()) {
+ # If the Nth notice was posted less than timespan seconds ago
+ if (time() - strtotime($notice->created) <= common_config('throttle', 'timespan')) {
+ # Then we throttle
+ return false;
+ }
+ }
+ # Either not N notices in the stream, OR the Nth was not posted within timespan seconds
+ return true;
+ }
+
+ function blowCaches($blowLast=false) {
+ $this->blowSubsCache($blowLast);
+ $this->blowNoticeCache($blowLast);
+ $this->blowRepliesCache($blowLast);
+ $this->blowPublicCache($blowLast);
+ $this->blowTagCache($blowLast);
+ }
+
+ function blowTagCache($blowLast=false) {
+ $cache = common_memcache();
+ if ($cache) {
+ $tag = new Notice_tag();
+ $tag->notice_id = $this->id;
+ if ($tag->find()) {
+ while ($tag->fetch()) {
+ $cache->delete(common_cache_key('notice_tag:notice_stream:' . $tag->tag));
+ if ($blowLast) {
+ $cache->delete(common_cache_key('notice_tag:notice_stream:' . $tag->tag . ';last'));
+ }
+ }
+ }
+ $tag->free();
+ unset($tag);
+ }
+ }
+
+ function blowSubsCache($blowLast=false) {
+ $cache = common_memcache();
+ if ($cache) {
+ $user = new User();
+
+ $user->query('SELECT id ' .
+ 'FROM user JOIN subscription ON user.id = subscription.subscriber ' .
+ 'WHERE subscription.subscribed = ' . $this->profile_id);
+
+ while ($user->fetch()) {
+ $cache->delete(common_cache_key('user:notices_with_friends:' . $user->id));
+ if ($blowLast) {
+ $cache->delete(common_cache_key('user:notices_with_friends:' . $user->id . ';last'));
}
-
- $user->free();
- unset($user);
}
+ $user->free();
+ unset($user);
+ }
+ }
+
+ function blowNoticeCache($blowLast=false) {
+ if ($this->is_local) {
+ $cache = common_memcache();
+ if ($cache) {
+ $cache->delete(common_cache_key('profile:notices:'.$this->profile_id));
+ if ($blowLast) {
+ $cache->delete(common_cache_key('profile:notices:'.$this->profile_id.';last'));
+ }
+ }
+ }
+ }
+
+ function blowRepliesCache($blowLast=false) {
+ $cache = common_memcache();
+ if ($cache) {
+ $reply = new Reply();
+ $reply->notice_id = $this->id;
+ if ($reply->find()) {
+ while ($reply->fetch()) {
+ $cache->delete(common_cache_key('user:replies:'.$reply->profile_id));
+ if ($blowLast) {
+ $cache->delete(common_cache_key('user:replies:'.$reply->profile_id.';last'));
+ }
+ }
+ }
+ $reply->free();
+ unset($reply);
+ }
+ }
+
+ function blowPublicCache($blowLast=false) {
+ if ($this->is_local == 1) {
+ $cache = common_memcache();
+ if ($cache) {
+ $cache->delete(common_cache_key('public'));
+ if ($blowLast) {
+ $cache->delete(common_cache_key('public').';last');
+ }
+ }
+ }
+ }
+
+ function blowFavesCache($blowLast=false) {
+ $cache = common_memcache();
+ if ($cache) {
+ $fave = new Fave();
+ $fave->notice_id = $this->id;
+ if ($fave->find()) {
+ while ($fave->fetch()) {
+ $cache->delete(common_cache_key('user:faves:'.$fave->user_id));
+ if ($blowLast) {
+ $cache->delete(common_cache_key('user:faves:'.$fave->user_id.';last'));
+ }
+ }
+ }
+ $fave->free();
+ unset($fave);
+ }
+ }
+
+ # XXX: too many args; we need to move to named params or even a separate
+ # class for notice streams
+
+ static function getStream($qry, $cachekey, $offset=0, $limit=20, $since_id=0, $before_id=0, $order=NULL) {
+
+ if (common_config('memcached', 'enabled')) {
+
+ # Skip the cache if this is a since_id or before_id qry
+ if ($since_id > 0 || $before_id > 0) {
+ return Notice::getStreamDirect($qry, $offset, $limit, $since_id, $before_id, $order);
+ } else {
+ return Notice::getCachedStream($qry, $cachekey, $offset, $limit, $order);
+ }
+ }
+
+ return Notice::getStreamDirect($qry, $offset, $limit, $since_id, $before_id, $order);
+ }
+
+ static function getStreamDirect($qry, $offset, $limit, $since_id, $before_id, $order) {
+
+ $needAnd = FALSE;
+ $needWhere = TRUE;
+
+ if (preg_match('/\bWHERE\b/i', $qry)) {
+ $needWhere = FALSE;
+ $needAnd = TRUE;
+ }
+
+ if ($since_id > 0) {
+
+ if ($needWhere) {
+ $qry .= ' WHERE ';
+ $needWhere = FALSE;
+ } else {
+ $qry .= ' AND ';
+ }
+
+ $qry .= ' notice.id > ' . $since_id;
+ }
+
+ if ($before_id > 0) {
+
+ if ($needWhere) {
+ $qry .= ' WHERE ';
+ $needWhere = FALSE;
+ } else {
+ $qry .= ' AND ';
+ }
+
+ $qry .= ' notice.id < ' . $before_id;
+ }
+
+ # Allow ORDER override
+
+ if ($order) {
+ $qry .= $order;
+ } else {
+ $qry .= ' ORDER BY notice.created DESC, notice.id DESC ';
+ }
+
+ if (common_config('db','type') == 'pgsql') {
+ $qry .= ' LIMIT ' . $limit . ' OFFSET ' . $offset;
+ } else {
+ $qry .= ' LIMIT ' . $offset . ', ' . $limit;
}
-
+
+ $notice = new Notice();
+
+ $notice->query($qry);
+
return $notice;
}
+
+ # XXX: this is pretty long and should probably be broken up into
+ # some helper functions
+
+ static function getCachedStream($qry, $cachekey, $offset, $limit, $order) {
+
+ # If outside our cache window, just go to the DB
+
+ if ($offset + $limit > NOTICE_CACHE_WINDOW) {
+ return Notice::getStreamDirect($qry, $offset, $limit, NULL, NULL, $order);
+ }
+
+ # Get the cache; if we can't, just go to the DB
+
+ $cache = common_memcache();
+
+ if (!$cache) {
+ return Notice::getStreamDirect($qry, $offset, $limit, NULL, NULL, $order);
+ }
+
+ # Get the notices out of the cache
+
+ $notices = $cache->get(common_cache_key($cachekey));
+
+ # On a cache hit, return a DB-object-like wrapper
+
+ if ($notices !== FALSE) {
+ $wrapper = new NoticeWrapper(array_slice($notices, $offset, $limit));
+ return $wrapper;
+ }
+
+ # If the cache was invalidated because of new data being
+ # added, we can try and just get the new stuff. We keep an additional
+ # copy of the data at the key + ';last'
+
+ # No cache hit. Try to get the *last* cached version
+
+ $last_notices = $cache->get(common_cache_key($cachekey) . ';last');
+
+ if ($last_notices) {
+
+ # Reverse-chron order, so last ID is last.
+
+ $last_id = $last_notices[0]->id;
+
+ # XXX: this assumes monotonically increasing IDs; a fair
+ # bet with our DB.
+
+ $new_notice = Notice::getStreamDirect($qry, 0, NOTICE_CACHE_WINDOW,
+ $last_id, NULL, $order);
+
+ if ($new_notice) {
+ $new_notices = array();
+ while ($new_notice->fetch()) {
+ $new_notices[] = clone($new_notice);
+ }
+ $new_notice->free();
+ $notices = array_slice(array_merge($new_notices, $last_notices),
+ 0, NOTICE_CACHE_WINDOW);
+
+ # Store the array in the cache for next time
+
+ $result = $cache->set(common_cache_key($cachekey), $notices);
+ $result = $cache->set(common_cache_key($cachekey) . ';last', $notices);
+
+ # return a wrapper of the array for use now
+
+ return new NoticeWrapper(array_slice($notices, $offset, $limit));
+ }
+ }
+
+ # Otherwise, get the full cache window out of the DB
+
+ $notice = Notice::getStreamDirect($qry, 0, NOTICE_CACHE_WINDOW, NULL, NULL, $order);
+
+ # If there are no hits, just return the value
+
+ if (!$notice) {
+ return $notice;
+ }
+
+ # Pack results into an array
+
+ $notices = array();
+
+ while ($notice->fetch()) {
+ $notices[] = clone($notice);
+ }
+
+ $notice->free();
+
+ # Store the array in the cache for next time
+
+ $result = $cache->set(common_cache_key($cachekey), $notices);
+ $result = $cache->set(common_cache_key($cachekey) . ';last', $notices);
+
+ # return a wrapper of the array for use now
+
+ $wrapper = new NoticeWrapper(array_slice($notices, $offset, $limit));
+
+ return $wrapper;
+ }
+
+ function publicStream($offset=0, $limit=20, $since_id=0, $before_id=0) {
+
+ $parts = array();
+
+ $qry = 'SELECT * FROM notice ';
+
+ if (common_config('public', 'localonly')) {
+ $parts[] = 'is_local = 1';
+ } else {
+ # -1 == blacklisted
+ $parts[] = 'is_local != -1';
+ }
+
+ if ($parts) {
+ $qry .= ' WHERE ' . implode(' AND ', $parts);
+ }
+
+ return Notice::getStream($qry,
+ 'public',
+ $offset, $limit, $since_id, $before_id);
+ }
+
+ function addToInboxes() {
+ $enabled = common_config('inboxes', 'enabled');
+
+ if ($enabled === true || $enabled === 'transitional') {
+ $inbox = new Notice_inbox();
+ $qry = 'INSERT INTO notice_inbox (user_id, notice_id, created) ' .
+ 'SELECT user.id, ' . $this->id . ', "' . $this->created . '" ' .
+ 'FROM user JOIN subscription ON user.id = subscription.subscriber ' .
+ 'WHERE subscription.subscribed = ' . $this->profile_id . ' ' .
+ 'AND NOT EXISTS (SELECT user_id, notice_id ' .
+ 'FROM notice_inbox ' .
+ 'WHERE user_id = user.id ' .
+ 'AND notice_id = ' . $this->id . ' )';
+ if ($enabled === 'transitional') {
+ $qry .= ' AND user.inboxed = 1';
+ }
+ $inbox->query($qry);
+ }
+ return;
+ }
+
+ # Delete from inboxes if we're deleted.
+
+ function blowInboxes() {
+
+ $enabled = common_config('inboxes', 'enabled');
+
+ if ($enabled === true || $enabled === 'transitional') {
+ $inbox = new Notice_inbox();
+ $inbox->notice_id = $this->id;
+ $inbox->delete();
+ }
+
+ return;
+ }
+
}
+
projects / quix0rs-gnu-social.git / blobdiff