gnu-social/classes/User_group.php
Evan Prodromou 44bcc942b8 Break up stream code to use separate notice stream classes
Rearchitect (again!) notice stream code to delegate different functionality up and down the stack.

Now, different classes implement NoticeStream.
2011-03-24 18:04:19 -04:00

647 lines
20 KiB
PHP

<?php
/**
* Table Definition for user_group
*/
class User_group extends Memcached_DataObject
{
const JOIN_POLICY_OPEN = 0;
const JOIN_POLICY_MODERATE = 1;
###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 $design_id; // int(4)
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 $join_policy; // tinyint
/* Static get */
function staticGet($k,$v=NULL) { return DB_DataObject::staticGet('User_group',$k,$v); }
/* the code above is auto generated do not remove the tag below */
###END_AUTOCODE
function defaultLogo($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;
}
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);
return $stream->getNotices($offset, $limit, $since_id, $max_id);
}
function allowedNickname($nickname)
{
static $blacklist = array('new');
return !in_array($nickname, $blacklist);
}
function getMembers($offset=0, $limit=null)
{
$qry =
'SELECT profile.* ' .
'FROM profile JOIN group_member '.
'ON profile.id = group_member.profile_id ' .
'WHERE group_member.group_id = %d ' .
'ORDER BY group_member.created DESC ';
if ($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;
}
/**
* 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()
{
// XXX: WORM cache this
$members = $this->getMembers();
$member_count = 0;
/** $member->count() doesn't work. */
while ($members->fetch()) {
$member_count++;
}
return $member_count;
}
function getAdmins($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)
{
$imagefile = new ImageFile($this->id, Avatar::path($filename));
$orig = clone($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));
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 = $profile->getGroups();
while ($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 getDesign()
{
return Design::staticGet('id', $this->design_id);
}
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: " . $profile->nickname);
// TRANS: Client exception thrown when a user tries to create a group while banned.
throw new ClientException(_('You are not allowed to create groups on this site.'), 403);
}
}
// MAGICALLY put fields into current scope
// @fixme kill extract(); it makes debugging absurdly hard
extract($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 {
$group->join_policy = 0;
}
if (Event::handle('StartGroupSave', array(&$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($member, 'INSERT', __FILE__);
// TRANS: Server exception thrown when setting group membership failed.
throw new ServerException(_('Could not set group membership.'));
}
if ($local) {
$local_group = new Local_group();
$local_group->group_id = $group->id;
$local_group->nickname = $nickname;
$local_group->created = common_sql_now();
$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.'));
}
}
$group->query('COMMIT');
Event::handle('EndGroupSave', array($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::staticGet('group_id', $this->id);
if ($local) {
$local->delete();
}
// blow the cached ids
self::blow('user_group:notice_ids:%d', $this->id);
} else {
common_log(LOG_WARN, "Ambiguous user_group->delete(); skipping related tables.");
}
parent::delete();
}
}