+ $to_delete = array_diff($oldaliases, $newaliases);
+
+ // Insert stuff that's in new and not in old
+
+ $to_insert = array_diff($newaliases, $oldaliases);
+
+ $alias = new Group_alias();
+
+ $alias->group_id = $this->id;
+
+ foreach ($to_delete as $delalias) {
+ $alias->alias = $delalias;
+ $result = $alias->delete();
+ if (!$result) {
+ common_log_db_error($alias, 'DELETE', __FILE__);
+ return false;
+ }
+ }
+
+ foreach ($to_insert as $insalias) {
+ $alias->alias = $insalias;
+ $result = $alias->insert();
+ if (!$result) {
+ common_log_db_error($alias, 'INSERT', __FILE__);
+ return false;
+ }
+ }
+
+ return true;
+ }
+
+ static function getForNickname($nickname, $profile=null)
+ {
+ $nickname = common_canonical_nickname($nickname);
+
+ // Are there any matching remote groups this profile's in?
+ if ($profile) {
+ $group = $profile->getGroups();
+ while ($group->fetch()) {
+ if ($group->nickname == $nickname) {
+ // @fixme is this the best way?
+ return clone($group);
+ }
+ }
+ }
+
+ // If not, check local groups.
+
+ $group = Local_group::staticGet('nickname', $nickname);
+ if (!empty($group)) {
+ return User_group::staticGet('id', $group->group_id);
+ }
+ $alias = Group_alias::staticGet('alias', $nickname);
+ if (!empty($alias)) {
+ return User_group::staticGet('id', $alias->group_id);
+ }
+ return null;
+ }
+
+ function getUserMembers()
+ {
+ // XXX: cache this
+
+ $user = new User();
+ if(common_config('db','quote_identifiers'))
+ $user_table = '"user"';
+ else $user_table = 'user';
+
+ $qry =
+ 'SELECT id ' .
+ 'FROM '. $user_table .' JOIN group_member '.
+ 'ON '. $user_table .'.id = group_member.profile_id ' .
+ 'WHERE group_member.group_id = %d ';
+
+ $user->query(sprintf($qry, $this->id));
+
+ $ids = array();
+
+ while ($user->fetch()) {
+ $ids[] = $user->id;
+ }
+
+ $user->free();
+
+ return $ids;
+ }
+
+ static function maxDescription()
+ {
+ $desclimit = common_config('group', 'desclimit');
+ // null => use global limit (distinct from 0!)
+ if (is_null($desclimit)) {
+ $desclimit = common_config('site', 'textlimit');
+ }
+ return $desclimit;
+ }
+
+ static function descriptionTooLong($desc)
+ {
+ $desclimit = self::maxDescription();
+ return ($desclimit > 0 && !empty($desc) && (mb_strlen($desc) > $desclimit));
+ }
+
+ function asAtomEntry($namespace=false, $source=false)
+ {
+ $xs = new XMLStringer(true);
+
+ if ($namespace) {
+ $attrs = array('xmlns' => 'http://www.w3.org/2005/Atom',
+ 'xmlns:thr' => 'http://purl.org/syndication/thread/1.0');
+ } else {
+ $attrs = array();
+ }
+
+ $xs->elementStart('entry', $attrs);
+
+ if ($source) {
+ $xs->elementStart('source');
+ $xs->element('id', null, $this->permalink());
+ $xs->element('title', null, $profile->nickname . " - " . common_config('site', 'name'));
+ $xs->element('link', array('href' => $this->permalink()));
+ $xs->element('updated', null, $this->modified);
+ $xs->elementEnd('source');
+ }
+
+ $xs->element('title', null, $this->nickname);
+ $xs->element('summary', null, common_xml_safe_str($this->description));
+
+ $xs->element('link', array('rel' => 'alternate',
+ 'href' => $this->permalink()));
+
+ $xs->element('id', null, $this->permalink());
+
+ $xs->element('published', null, common_date_w3dtf($this->created));
+ $xs->element('updated', null, common_date_w3dtf($this->modified));
+
+ $xs->element(
+ 'content',
+ array('type' => 'html'),
+ common_xml_safe_str($this->description)
+ );
+
+ $xs->elementEnd('entry');
+
+ return $xs->getString();
+ }
+
+ function asAtomAuthor()
+ {
+ $xs = new XMLStringer(true);
+
+ $xs->elementStart('author');
+ $xs->element('name', null, $this->nickname);
+ $xs->element('uri', null, $this->permalink());
+ $xs->elementEnd('author');
+
+ return $xs->getString();
+ }
+
+ /**
+ * Returns an XML string fragment with group information as an
+ * Activity Streams <activity:subject> element.
+ *
+ * Assumes that 'activity' namespace has been previously defined.
+ *
+ * @return string
+ */
+ function asActivitySubject()
+ {
+ return $this->asActivityNoun('subject');
+ }
+
+ /**
+ * Returns an XML string fragment with group information as an
+ * Activity Streams noun object with the given element type.
+ *
+ * Assumes that 'activity', 'georss', and 'poco' namespace has been
+ * previously defined.
+ *
+ * @param string $element one of 'actor', 'subject', 'object', 'target'
+ *
+ * @return string
+ */
+ function asActivityNoun($element)
+ {
+ $noun = ActivityObject::fromGroup($this);
+ return $noun->asString('activity:' . $element);
+ }
+
+ function getAvatar()
+ {
+ return empty($this->homepage_logo)
+ ? User_group::defaultLogo(AVATAR_PROFILE_SIZE)
+ : $this->homepage_logo;
+ }
+
+ static function register($fields) {
+ if (!empty($fields['userid'])) {
+ $profile = Profile::staticGet('id', $fields['userid']);
+ if ($profile && !$profile->hasRight(Right::CREATEGROUP)) {
+ common_log(LOG_WARNING, "Attempted group creation from banned user: " . $profile->nickname);
+
+ // TRANS: Client exception thrown when a user tries to create a group while banned.
+ throw new ClientException(_('You are not allowed to create groups on this site.'), 403);
+ }
+ }
+
+ // MAGICALLY put fields into current scope
+ // @fixme kill extract(); it makes debugging absurdly hard
+
+ $defaults = array('nickname' => null,
+ 'fullname' => null,
+ 'homepage' => null,
+ 'description' => null,
+ 'location' => null,
+ 'uri' => null,
+ 'mainpage' => null,
+ 'aliases' => array(),
+ 'userid' => null);
+
+ $fields = array_merge($defaults, $fields);
+
+ extract($fields);
+
+ $group = new User_group();
+
+ $group->query('BEGIN');
+
+ if (empty($uri)) {
+ // fill in later...
+ $uri = null;
+ }
+ if (empty($mainpage)) {
+ $mainpage = common_local_url('showgroup', array('nickname' => $nickname));
+ }
+
+ $group->nickname = $nickname;
+ $group->fullname = $fullname;
+ $group->homepage = $homepage;
+ $group->description = $description;
+ $group->location = $location;
+ $group->uri = $uri;
+ $group->mainpage = $mainpage;
+ $group->created = common_sql_now();
+
+ if (isset($fields['join_policy'])) {
+ $group->join_policy = intval($fields['join_policy']);
+ } else {
+ $group->join_policy = 0;
+ }
+
+ if (isset($fields['force_scope'])) {
+ $group->force_scope = intval($fields['force_scope']);
+ } else {
+ $group->force_scope = 0;
+ }
+
+ if (Event::handle('StartGroupSave', array(&$group))) {
+
+ $result = $group->insert();
+
+ if (!$result) {
+ common_log_db_error($group, 'INSERT', __FILE__);
+ // TRANS: Server exception thrown when creating a group failed.
+ throw new ServerException(_('Could not create group.'));
+ }
+
+ if (!isset($uri) || empty($uri)) {
+ $orig = clone($group);
+ $group->uri = common_local_url('groupbyid', array('id' => $group->id));
+ $result = $group->update($orig);
+ if (!$result) {
+ common_log_db_error($group, 'UPDATE', __FILE__);
+ // TRANS: Server exception thrown when updating a group URI failed.
+ throw new ServerException(_('Could not set group URI.'));
+ }
+ }
+
+ $result = $group->setAliases($aliases);
+
+ if (!$result) {
+ // TRANS: Server exception thrown when creating group aliases failed.
+ throw new ServerException(_('Could not create aliases.'));
+ }
+
+ $member = new Group_member();
+
+ $member->group_id = $group->id;
+ $member->profile_id = $userid;
+ $member->is_admin = 1;
+ $member->created = $group->created;
+
+ $result = $member->insert();
+
+ if (!$result) {
+ common_log_db_error($member, 'INSERT', __FILE__);
+ // TRANS: Server exception thrown when setting group membership failed.
+ throw new ServerException(_('Could not set group membership.'));
+ }
+
+ self::blow('profile:groups:%d', $userid);