*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
if (!defined('LACONICA')) { exit(1); }
/**
* 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 $__table = 'notice'; // table name
- public $id; // int(4) primary_key not_null
- public $profile_id; // int(4) not_null
+ public $__table = 'notice'; // table name
+ 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 $created; // datetime() not_null
- public $modified; // timestamp() not_null default_CURRENT_TIMESTAMP
- public $reply_to; // int(4)
+ 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 $source; // varchar(32)
/* Static get */
- function staticGet($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);
- }
+ function getProfile()
+ {
+ return Profile::staticGet('id', $this->profile_id);
+ }
+
+ function delete()
+ {
+ $this->blowCaches(true);
+ $this->blowFavesCache(true);
+ $this->blowInboxes();
+ return parent::delete();
+ }
+
+ function saveTags()
+ {
+ /* extract all #hastags */
+ $count = preg_match_all('/(?:^|\s)#([A-Za-z0-9_\-\.]{1,64})/', strtolower($this->content), $match);
+ if (!$count) {
+ return true;
+ }
+
+ /* elide characters we don't want in the tag */
+ $match[1] = str_replace(array('-', '_', '.'), '', $match[1]);
+
+ /* Add them to the database */
+ foreach(array_unique($match[1]) as $hashtag) {
+ $tag = DB_DataObject::factory('Notice_tag');
+ $tag->notice_id = $this->id;
+ $tag->tag = $hashtag;
+ $tag->created = $this->created;
+ $id = $tag->insert();
+ if (!$id) {
+ $last_error = PEAR::getStaticProperty('DB_DataObject','lastError');
+ common_log(LOG_ERR, 'DB error inserting hashtag: ' . $last_error->message);
+ common_server_error(sprintf(_('DB error inserting hashtag: %s'), $last_error->message));
+ return;
+ }
+ }
+ return true;
+ }
+
+ static function saveNew($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;
+
+ $blacklist = common_config('public', 'blacklist');
+
+ # Blacklisted are non-false, but not 1, either
+
+ if ($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();
+ $notice->content = common_shorten_links($content);
+ $notice->rendered = common_render_content($notice->content, $notice);
+ $notice->source = $source;
+ $notice->uri = $uri;
+
+ $id = $notice->insert();
+
+ if (!$id) {
+ common_log_db_error($notice, 'INSERT', __FILE__);
+ return _('Problem saving notice.');
+ }
+
+ # Update the URI after the notice is in the database
+ if (!$uri) {
+ $orig = clone($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?
+
+ $notice->saveReplies();
+ $notice->saveTags();
+ $notice->saveGroups();
+
+ # 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')) {
+ $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);
+ $this->blowGroupCache($blowLast);
+ }
+
+ function blowGroupCache($blowLast=false)
+ {
+ $cache = common_memcache();
+ if ($cache) {
+ $group_inbox = new Group_inbox();
+ $group_inbox->notice_id = $this->id;
+ if ($group_inbox->find()) {
+ while ($group_inbox->fetch()) {
+ $cache->delete(common_cache_key('group:notices:'.$group_inbox->group_id));
+ if ($blowLast) {
+ $cache->delete(common_cache_key('group:notices:'.$group_inbox->group_id.';last'));
+ }
+ $member = new Group_member();
+ $member->group_id = $group_inbox->group_id;
+ if ($member->find()) {
+ while ($member->fetch()) {
+ $cache->delete(common_cache_key('user:notices_with_friends:' . $member->profile_id));
+ if ($blowLast) {
+ $cache->delete(common_cache_key('user:notices_with_friends:' . $member->profile_id . ';last'));
+ }
+ }
+ }
+ }
+ }
+ $group_inbox->free();
+ unset($group_inbox);
+ }
+ }
+
+ 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);
+ }
+ }
+
+ 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, $since=null) {
+
+ if (common_config('memcached', 'enabled')) {
+
+ # Skip the cache if this is a since, since_id or before_id qry
+ if ($since_id > 0 || $before_id > 0 || $since) {
+ return Notice::getStreamDirect($qry, $offset, $limit, $since_id, $before_id, $order, $since);
+ } else {
+ return Notice::getCachedStream($qry, $cachekey, $offset, $limit, $order);
+ }
+ }
+
+ return Notice::getStreamDirect($qry, $offset, $limit, $since_id, $before_id, $order, $since);
+ }
+
+ static function getStreamDirect($qry, $offset, $limit, $since_id, $before_id, $order, $since) {
+
+ $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 < ' . $before_id;
+ }
+
+ if ($since) {
+
+ if ($needWhere) {
+ $qry .= ' WHERE ';
+ $needWhere = false;
+ } else {
+ $qry .= ' AND ';
+ }
+
+ $qry .= ' notice.created > \'' . date('Y-m-d H:i:s', $since) . '\'';
+ }
+
+ # Allow ORDER override
+
+ if ($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, null);
+ }
+
+ # 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, null);
+ }
+
+ # 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) {
+ $wrapper = new ArrayWrapper(array_slice($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, $order, null);
+
+ if ($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', $notices);
+
+ # return a wrapper of the array for use now
+
+ return new ArrayWrapper(array_slice($notices, $offset, $limit));
+ }
+ }
+
+ # Otherwise, get the full cache window out of the DB
+
+ $notice = Notice::getStreamDirect($qry, 0, NOTICE_CACHE_WINDOW, null, null, $order, null);
+
+ # If there are no hits, just return the value
+
+ if (!$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
+
+ $wrapper = new ArrayWrapper(array_slice($notices, $offset, $limit));
+
+ return $wrapper;
+ }
+
+ function publicStream($offset=0, $limit=20, $since_id=0, $before_id=0, $since=null)
+ {
+
+ $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, null, $since);
+ }
+
+ 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;
+ }
+
+ function saveGroups()
+ {
+ $enabled = common_config('inboxes', 'enabled');
+ if ($enabled !== true && $enabled !== 'transitional') {
+ return;
+ }
+
+ /* extract all !group */
+ $count = preg_match_all('/(?:^|\s)!([A-Za-z0-9]{1,64})/',
+ strtolower($this->content),
+ $match);
+ if (!$count) {
+ return true;
+ }
+
+ $profile = $this->getProfile();
+
+ /* Add them to the database */
+
+ foreach (array_unique($match[1]) as $nickname) {
+ /* XXX: remote groups. */
+ $group = User_group::staticGet('nickname', $nickname);
+
+ if (!$group) {
+ continue;
+ }
+
+ if ($profile->isMember($group)) {
+
+ $gi = new Group_inbox();
+
+ $gi->group_id = $group->id;
+ $gi->notice_id = $this->id;
+ $gi->created = common_sql_now();
+
+ $result = $gi->insert();
+
+ if (!$result) {
+ common_log_db_error($gi, 'INSERT', __FILE__);
+ }
+
+ // FIXME: do this in an offline daemon
+
+ $inbox = new Notice_inbox();
+ $qry = 'INSERT INTO notice_inbox (user_id, notice_id, created, source) ' .
+ 'SELECT user.id, ' . $this->id . ', "' . $this->created . '", 2 ' .
+ 'FROM user JOIN group_member ON user.id = group_member.profile_id ' .
+ 'WHERE group_member.group_id = ' . $group->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';
+ }
+ $result = $inbox->query($qry);
+ }
+ }
+ }
+
+ function saveReplies()
+ {
+ // Alternative reply format
+ $tname = false;
+ if (preg_match('/^T ([A-Z0-9]{1,64}) /', $this->content, $match)) {
+ $tname = $match[1];
+ }
+ // extract all @messages
+ $cnt = preg_match_all('/(?:^|\s)@([a-z0-9]{1,64})/', $this->content, $match);
+
+ $names = array();
+
+ if ($cnt || $tname) {
+ // XXX: is there another way to make an array copy?
+ $names = ($tname) ? array_unique(array_merge(array(strtolower($tname)), $match[1])) : array_unique($match[1]);
+ }
+
+ $sender = Profile::staticGet($this->profile_id);
+
+ $replied = array();
+
+ // store replied only for first @ (what user/notice what the reply directed,
+ // we assume first @ is it)
+
+ for ($i=0; $i<count($names); $i++) {
+ $nickname = $names[$i];
+ $recipient = common_relative_profile($sender, $nickname, $this->created);
+ if (!$recipient) {
+ continue;
+ }
+ if ($i == 0 && ($recipient->id != $sender->id) && !$this->reply_to) { // Don't save reply to self
+ $reply_for = $recipient;
+ $recipient_notice = $reply_for->getCurrentNotice();
+ if ($recipient_notice) {
+ $orig = clone($this);
+ $this->reply_to = $recipient_notice->id;
+ $this->update($orig);
+ }
+ }
+ // Don't save replies from blocked profile to local user
+ $recipient_user = User::staticGet('id', $recipient->id);
+ if ($recipient_user && $recipient_user->hasBlocked($sender)) {
+ continue;
+ }
+ $reply = new Reply();
+ $reply->notice_id = $this->id;
+ $reply->profile_id = $recipient->id;
+ $id = $reply->insert();
+ if (!$id) {
+ $last_error = &PEAR::getStaticProperty('DB_DataObject','lastError');
+ common_log(LOG_ERR, 'DB error inserting reply: ' . $last_error->message);
+ common_server_error(sprintf(_('DB error inserting reply: %s'), $last_error->message));
+ return;
+ } else {
+ $replied[$recipient->id] = 1;
+ }
+ }
+
+ // Hash format replies, too
+ $cnt = preg_match_all('/(?:^|\s)@#([a-z0-9]{1,64})/', $this->content, $match);
+ if ($cnt) {
+ foreach ($match[1] as $tag) {
+ $tagged = Profile_tag::getTagged($sender->id, $tag);
+ foreach ($tagged as $t) {
+ if (!$replied[$t->id]) {
+ // Don't save replies from blocked profile to local user
+ $t_user = User::staticGet('id', $t->id);
+ if ($t_user && $t_user->hasBlocked($sender)) {
+ continue;
+ }
+ $reply = new Reply();
+ $reply->notice_id = $this->id;
+ $reply->profile_id = $t->id;
+ $id = $reply->insert();
+ if (!$id) {
+ common_log_db_error($reply, 'INSERT', __FILE__);
+ return;
+ }
+ }
+ }
+ }
+ }
+ }
}
projects / quix0rs-gnu-social.git / blobdiff