gnu-social/classes/User_group.php

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<?php
/**
* Table Definition for user_group
*/
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class User_group extends Managed_DataObject
{
const JOIN_POLICY_OPEN = 0;
const JOIN_POLICY_MODERATE = 1;
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const CACHE_WINDOW = 201;
###START_AUTOCODE
/* the code below is auto generated do not remove the above tag */
public $__table = 'user_group'; // table name
public $id; // int(4) primary_key not_null
public $nickname; // varchar(64)
public $fullname; // varchar(255)
public $homepage; // varchar(255)
public $description; // text
public $location; // varchar(255)
public $original_logo; // varchar(255)
public $homepage_logo; // varchar(255)
public $stream_logo; // varchar(255)
public $mini_logo; // varchar(255)
public $created; // datetime not_null default_0000-00-00%2000%3A00%3A00
public $modified; // timestamp not_null default_CURRENT_TIMESTAMP
public $uri; // varchar(255) unique_key
public $mainpage; // varchar(255)
public $join_policy; // tinyint
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public $force_scope; // tinyint
/* the code above is auto generated do not remove the tag below */
###END_AUTOCODE
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public static function schemaDef()
{
return array(
'fields' => array(
'id' => array('type' => 'serial', 'not null' => true, 'description' => 'unique identifier'),
'nickname' => array('type' => 'varchar', 'length' => 64, 'description' => 'nickname for addressing'),
'fullname' => array('type' => 'varchar', 'length' => 255, 'description' => 'display name'),
'homepage' => array('type' => 'varchar', 'length' => 255, 'description' => 'URL, cached so we dont regenerate'),
'description' => array('type' => 'text', 'description' => 'group description'),
'location' => array('type' => 'varchar', 'length' => 255, 'description' => 'related physical location, if any'),
'original_logo' => array('type' => 'varchar', 'length' => 255, 'description' => 'original size logo'),
'homepage_logo' => array('type' => 'varchar', 'length' => 255, 'description' => 'homepage (profile) size logo'),
'stream_logo' => array('type' => 'varchar', 'length' => 255, 'description' => 'stream-sized logo'),
'mini_logo' => array('type' => 'varchar', 'length' => 255, 'description' => 'mini logo'),
'created' => array('type' => 'datetime', 'not null' => true, 'description' => 'date this record was created'),
'modified' => array('type' => 'timestamp', 'not null' => true, 'description' => 'date this record was modified'),
'uri' => array('type' => 'varchar', 'length' => 255, 'description' => 'universal identifier'),
'mainpage' => array('type' => 'varchar', 'length' => 255, 'description' => 'page for group info to link to'),
'join_policy' => array('type' => 'int', 'size' => 'tiny', 'description' => '0=open; 1=requires admin approval'),
'force_scope' => array('type' => 'int', 'size' => 'tiny', 'description' => '0=never,1=sometimes,-1=always'),
),
'primary key' => array('id'),
'unique keys' => array(
'user_group_uri_key' => array('uri'),
),
'indexes' => array(
'user_group_nickname_idx' => array('nickname'),
),
);
}
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public static function defaultLogo($size)
{
static $sizenames = array(AVATAR_PROFILE_SIZE => 'profile',
AVATAR_STREAM_SIZE => 'stream',
AVATAR_MINI_SIZE => 'mini');
return Theme::path('default-avatar-'.$sizenames[$size].'.png');
}
function homeUrl()
{
$url = null;
if (Event::handle('StartUserGroupHomeUrl', array($this, &$url))) {
// normally stored in mainpage, but older ones may be null
if (!empty($this->mainpage)) {
$url = $this->mainpage;
} else {
$url = common_local_url('showgroup',
array('nickname' => $this->nickname));
}
}
Event::handle('EndUserGroupHomeUrl', array($this, &$url));
return $url;
}
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function getUri()
{
$uri = null;
if (Event::handle('StartUserGroupGetUri', array($this, &$uri))) {
if (!empty($this->uri)) {
$uri = $this->uri;
} else {
$uri = common_local_url('groupbyid',
array('id' => $this->id));
}
}
Event::handle('EndUserGroupGetUri', array($this, &$uri));
return $uri;
}
function permalink()
{
$url = null;
if (Event::handle('StartUserGroupPermalink', array($this, &$url))) {
$url = common_local_url('groupbyid',
array('id' => $this->id));
}
Event::handle('EndUserGroupPermalink', array($this, &$url));
return $url;
}
function getNotices($offset, $limit, $since_id=null, $max_id=null)
{
$stream = new GroupNoticeStream($this);
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return $stream->getNotices($offset, $limit, $since_id, $max_id);
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}
function allowedNickname($nickname)
{
static $blacklist = array('new');
return !in_array($nickname, $blacklist);
}
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function getMembers($offset=0, $limit=null) {
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$ids = null;
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if (is_null($limit) || $offset + $limit > User_group::CACHE_WINDOW) {
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$ids = $this->getMemberIDs($offset,
$limit);
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} else {
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$key = sprintf('group:member_ids:%d', $this->id);
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$window = self::cacheGet($key);
if ($window === false) {
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$window = $this->getMemberIDs(0,
User_group::CACHE_WINDOW);
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self::cacheSet($key, $window);
}
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$ids = array_slice($window,
$offset,
$limit);
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}
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return Profile::multiGet('id', $ids);
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}
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function getMemberIDs($offset=0, $limit=null)
{
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$gm = new Group_member();
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$gm->selectAdd();
$gm->selectAdd('profile_id');
$gm->group_id = $this->id;
$gm->orderBy('created DESC');
if (!is_null($limit)) {
$gm->limit($offset, $limit);
}
$ids = array();
if ($gm->find()) {
while ($gm->fetch()) {
$ids[] = $gm->profile_id;
}
}
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return $ids;
}
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/**
* Get pending members, who have not yet been approved.
*
* @param int $offset
* @param int $limit
* @return Profile
*/
function getRequests($offset=0, $limit=null)
{
$qry =
'SELECT profile.* ' .
'FROM profile JOIN group_join_queue '.
'ON profile.id = group_join_queue.profile_id ' .
'WHERE group_join_queue.group_id = %d ' .
'ORDER BY group_join_queue.created DESC ';
if ($limit != null) {
if (common_config('db','type') == 'pgsql') {
$qry .= ' LIMIT ' . $limit . ' OFFSET ' . $offset;
} else {
$qry .= ' LIMIT ' . $offset . ', ' . $limit;
}
}
$members = new Profile();
$members->query(sprintf($qry, $this->id));
return $members;
}
function getMemberCount()
{
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$key = sprintf("group:member_count:%d", $this->id);
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$cnt = self::cacheGet($key);
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if (is_integer($cnt)) {
return (int) $cnt;
}
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$mem = new Group_member();
$mem->group_id = $this->id;
// XXX: why 'distinct'?
$cnt = (int) $mem->count('distinct profile_id');
self::cacheSet($key, $cnt);
return $cnt;
}
function getBlockedCount()
{
// XXX: WORM cache this
$block = new Group_block();
$block->group_id = $this->id;
return $block->count();
}
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function getQueueCount()
{
// XXX: WORM cache this
$queue = new Group_join_queue();
$queue->group_id = $this->id;
return $queue->count();
}
function getAdmins($offset=0, $limit=null)
{
$qry =
'SELECT profile.* ' .
'FROM profile JOIN group_member '.
'ON profile.id = group_member.profile_id ' .
'WHERE group_member.group_id = %d ' .
'AND group_member.is_admin = 1 ' .
'ORDER BY group_member.modified ASC ';
if ($limit != null) {
if (common_config('db','type') == 'pgsql') {
$qry .= ' LIMIT ' . $limit . ' OFFSET ' . $offset;
} else {
$qry .= ' LIMIT ' . $offset . ', ' . $limit;
}
}
$admins = new Profile();
$admins->query(sprintf($qry, $this->id));
return $admins;
}
function getBlocked($offset=0, $limit=null)
{
$qry =
'SELECT profile.* ' .
'FROM profile JOIN group_block '.
'ON profile.id = group_block.blocked ' .
'WHERE group_block.group_id = %d ' .
'ORDER BY group_block.modified DESC ';
if ($limit != null) {
if (common_config('db','type') == 'pgsql') {
$qry .= ' LIMIT ' . $limit . ' OFFSET ' . $offset;
} else {
$qry .= ' LIMIT ' . $offset . ', ' . $limit;
}
}
$blocked = new Profile();
$blocked->query(sprintf($qry, $this->id));
return $blocked;
}
function setOriginal($filename)
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{
$imagefile = new ImageFile($this->id, Avatar::path($filename));
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$orig = clone($this);
$this->original_logo = Avatar::url($filename);
$this->homepage_logo = Avatar::url($imagefile->resize(AVATAR_PROFILE_SIZE));
$this->stream_logo = Avatar::url($imagefile->resize(AVATAR_STREAM_SIZE));
$this->mini_logo = Avatar::url($imagefile->resize(AVATAR_MINI_SIZE));
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common_debug(common_log_objstring($this));
return $this->update($orig);
}
function getBestName()
{
return ($this->fullname) ? $this->fullname : $this->nickname;
}
/**
* Gets the full name (if filled) with nickname as a parenthetical, or the nickname alone
* if no fullname is provided.
*
* @return string
*/
function getFancyName()
{
if ($this->fullname) {
// TRANS: Full name of a profile or group followed by nickname in parens
return sprintf(_m('FANCYNAME','%1$s (%2$s)'), $this->fullname, $this->nickname);
} else {
return $this->nickname;
}
}
function getAliases()
{
$aliases = array();
// XXX: cache this
$alias = new Group_alias();
$alias->group_id = $this->id;
if ($alias->find()) {
while ($alias->fetch()) {
$aliases[] = $alias->alias;
}
}
$alias->free();
return $aliases;
}
function setAliases($newaliases) {
$newaliases = array_unique($newaliases);
$oldaliases = $this->getAliases();
// Delete stuff that's old that not in new
$to_delete = array_diff($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 = $profile->getGroups(0, null);
while ($group->fetch()) {
if ($group->nickname == $nickname) {
// @fixme is this the best way?
return clone($group);
}
}
}
// If not, check local groups.
$group = Local_group::getKV('nickname', $nickname);
if (!empty($group)) {
return User_group::getKV('id', $group->group_id);
}
$alias = Group_alias::getKV('alias', $nickname);
if (!empty($alias)) {
return User_group::getKV('id', $alias->group_id);
}
return null;
}
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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();
}
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/**
* 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()
{
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return $this->asActivityNoun('subject');
}
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/**
* 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:' . $element);
}
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function getAvatar()
{
return empty($this->homepage_logo)
? User_group::defaultLogo(AVATAR_PROFILE_SIZE)
: $this->homepage_logo;
}
static function register($fields) {
if (!empty($fields['userid'])) {
$profile = Profile::getKV('id', $fields['userid']);
if ($profile && !$profile->hasRight(Right::CREATEGROUP)) {
common_log(LOG_WARNING, "Attempted group creation from banned user: " . $profile->nickname);
// TRANS: Client exception thrown when a user tries to create a group while banned.
throw new ClientException(_('You are not allowed to create groups on this site.'), 403);
}
}
// MAGICALLY put fields into current scope
// @fixme kill extract(); it makes debugging absurdly hard
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$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 = $uri;
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$group->mainpage = $mainpage;
$group->created = common_sql_now();
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if (isset($fields['join_policy'])) {
$group->join_policy = intval($fields['join_policy']);
} else {
$group->join_policy = 0;
}
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if (isset($fields['force_scope'])) {
$group->force_scope = intval($fields['force_scope']);
} else {
$group->force_scope = 0;
}
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if (Event::handle('StartGroupSave', array(&$group))) {
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$result = $group->insert();
if (!$result) {
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common_log_db_error($group, 'INSERT', __FILE__);
// TRANS: Server exception thrown when creating a group failed.
throw new ServerException(_('Could not create group.'));
}
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if (!isset($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.'));
}
}
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$result = $group->setAliases($aliases);
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if (!$result) {
// TRANS: Server exception thrown when creating group aliases failed.
throw new ServerException(_('Could not create aliases.'));
}
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$member = new Group_member();
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$member->group_id = $group->id;
$member->profile_id = $userid;
$member->is_admin = 1;
$member->created = $group->created;
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$result = $member->insert();
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if (!$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', $userid);
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if ($local) {
$local_group = new Local_group();
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$local_group->group_id = $group->id;
$local_group->nickname = $nickname;
$local_group->created = common_sql_now();
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$result = $local_group->insert();
if (!$result) {
common_log_db_error($local_group, 'INSERT', __FILE__);
// TRANS: Server exception thrown when saving local group information failed.
throw new ServerException(_('Could not save local group info.'));
}
}
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$group->query('COMMIT');
Event::handle('EndGroupSave', array($group));
}
return $group;
}
/**
* Handle cascading deletion, on the model of notice and profile.
*
* This should handle freeing up cached entries for the group's
* id, nickname, URI, and aliases. There may be other areas that
* are not de-cached in the UI, including the sidebar lists on
* GroupsAction
*/
function delete()
{
if ($this->id) {
// Safe to delete in bulk for now
$related = array('Group_inbox',
'Group_block',
'Group_member',
'Related_group');
Event::handle('UserGroupDeleteRelated', array($this, &$related));
foreach ($related as $cls) {
$inst = new $cls();
$inst->group_id = $this->id;
if ($inst->find()) {
while ($inst->fetch()) {
$dup = clone($inst);
$dup->delete();
}
}
}
// And related groups in the other direction...
$inst = new Related_group();
$inst->related_group_id = $this->id;
$inst->delete();
// Aliases and the local_group entry need to be cleared explicitly
// or we'll miss clearing some cache keys; that can make it hard
// to create a new group with one of those names or aliases.
$this->setAliases(array());
$local = Local_group::getKV('group_id', $this->id);
if ($local) {
$local->delete();
}
// blow the cached ids
self::blow('user_group:notice_ids:%d', $this->id);
} else {
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common_log(LOG_WARNING, "Ambiguous user_group->delete(); skipping related tables.");
}
parent::delete();
}
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function isPrivate()
{
return ($this->join_policy == self::JOIN_POLICY_MODERATE &&
$this->force_scope == 1);
}
}