<?php
/*
* StatusNet - the distributed open-source microblogging tool
* Copyright (C) 2009-2010, StatusNet, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* 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
* 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/>.
*/
/**
* @package OStatusPlugin
* @maintainer Brion Vibber <brion@status.net>
*/
class Ostatus_profile extends Memcached_DataObject
{
public $__table = 'ostatus_profile';
public $uri;
public $profile_id;
public $group_id;
public $feeduri;
public $salmonuri;
public $created;
public $modified;
public /*static*/ function staticGet($k, $v=null)
{
return parent::staticGet(__CLASS__, $k, $v);
}
/**
* return table definition for DB_DataObject
*
* DB_DataObject needs to know something about the table to manipulate
* instances. This method provides all the DB_DataObject needs to know.
*
* @return array array of column definitions
*/
function table()
{
return array('uri' => DB_DATAOBJECT_STR + DB_DATAOBJECT_NOTNULL,
'profile_id' => DB_DATAOBJECT_INT,
'group_id' => DB_DATAOBJECT_INT,
'feeduri' => DB_DATAOBJECT_STR,
'salmonuri' => DB_DATAOBJECT_STR,
'created' => DB_DATAOBJECT_STR + DB_DATAOBJECT_DATE + DB_DATAOBJECT_TIME + DB_DATAOBJECT_NOTNULL,
'modified' => DB_DATAOBJECT_STR + DB_DATAOBJECT_DATE + DB_DATAOBJECT_TIME + DB_DATAOBJECT_NOTNULL);
}
static function schemaDef()
{
return array(new ColumnDef('uri', 'varchar',
255, false, 'PRI'),
new ColumnDef('profile_id', 'integer',
null, true, 'UNI'),
new ColumnDef('group_id', 'integer',
null, true, 'UNI'),
new ColumnDef('feeduri', 'varchar',
255, true, 'UNI'),
new ColumnDef('salmonuri', 'text',
null, true),
new ColumnDef('created', 'datetime',
null, false),
new ColumnDef('modified', 'datetime',
null, false));
}
/**
* return key definitions for DB_DataObject
*
* DB_DataObject needs to know about keys that the table has; this function
* defines them.
*
* @return array key definitions
*/
function keys()
{
return array_keys($this->keyTypes());
}
/**
* return key definitions for Memcached_DataObject
*
* Our caching system uses the same key definitions, but uses a different
* method to get them.
*
* @return array key definitions
*/
function keyTypes()
{
return array('uri' => 'K', 'profile_id' => 'U', 'group_id' => 'U', 'feeduri' => 'U');
}
function sequenceKey()
{
return array(false, false, false);
}
/**
* Fetch the StatusNet-side profile for this feed
* @return Profile
*/
public function localProfile()
{
if ($this->profile_id) {
return Profile::staticGet('id', $this->profile_id);
}
return null;
}
/**
* Fetch the StatusNet-side profile for this feed
* @return Profile
*/
public function localGroup()
{
if ($this->group_id) {
return User_group::staticGet('id', $this->group_id);
}
return null;
}
/**
* Returns an ActivityObject describing this remote user or group profile.
* Can then be used to generate Atom chunks.
*
* @return ActivityObject
*/
function asActivityObject()
{
if ($this->isGroup()) {
$object = new ActivityObject();
$object->type = 'http://activitystrea.ms/schema/1.0/group';
$object->id = $this->uri;
$self = $this->localGroup();
// @fixme put a standard getAvatar() interface on groups too
if ($self->homepage_logo) {
$object->avatar = $self->homepage_logo;
$map = array('png' => 'image/png',
'jpg' => 'image/jpeg',
'jpeg' => 'image/jpeg',
'gif' => 'image/gif');
$extension = pathinfo(parse_url($avatarHref, PHP_URL_PATH), PATHINFO_EXTENSION);
if (isset($map[$extension])) {
// @fixme this ain't used/saved yet
$object->avatarType = $map[$extension];
}
}
$object->link = $this->uri; // @fixme accurate?
return $object;
} else {
return ActivityObject::fromProfile($this->localProfile());
}
}
/**
* Returns an XML string fragment with profile information as an
* Activity Streams noun object with the given element type.
*
* Assumes that 'activity' namespace has been previously defined.
*
* @fixme replace with wrappers on asActivityObject when it's got everything.
*
* @param string $element one of 'actor', 'subject', 'object', 'target'
* @return string
*/
function asActivityNoun($element)
{
$xs = new XMLStringer(true);
$avatarHref = Avatar::defaultImage(AVATAR_PROFILE_SIZE);
$avatarType = 'image/png';
if ($this->isGroup()) {
$type = 'http://activitystrea.ms/schema/1.0/group';
$self = $this->localGroup();
// @fixme put a standard getAvatar() interface on groups too
if ($self->homepage_logo) {
$avatarHref = $self->homepage_logo;
$map = array('png' => 'image/png',
'jpg' => 'image/jpeg',
'jpeg' => 'image/jpeg',
'gif' => 'image/gif');
$extension = pathinfo(parse_url($avatarHref, PHP_URL_PATH), PATHINFO_EXTENSION);
if (isset($map[$extension])) {
$avatarType = $map[$extension];
}
}
} else {
$type = 'http://activitystrea.ms/schema/1.0/person';
$self = $this->localProfile();
$avatar = $self->getAvatar(AVATAR_PROFILE_SIZE);
if ($avatar) {
$avatarHref = $avatar->url;
$avatarType = $avatar->mediatype;
}
}
$xs->elementStart('activity:' . $element);
$xs->element(
'activity:object-type',
null,
$type
);
$xs->element(
'id',
null,
$this->uri); // ?
$xs->element('title', null, $self->getBestName());
$xs->element(
'link', array(
'type' => $avatarType,
'href' => $avatarHref
),
''
);
$xs->elementEnd('activity:' . $element);
return $xs->getString();
}
/**
* @return boolean true if this is a remote group
*/
function isGroup()
{
if ($this->profile_id && !$this->group_id) {
return false;
} else if ($this->group_id && !$this->profile_id) {
return true;
} else if ($this->group_id && $this->profile_id) {
throw new ServerException("Invalid ostatus_profile state: both group and profile IDs set for $this->uri");
} else {
throw new ServerException("Invalid ostatus_profile state: both group and profile IDs empty for $this->uri");
}
}
/**
* Subscribe a local user to this remote user.
* PuSH subscription will be started if necessary, and we'll
* send a Salmon notification to the remote server if available
* notifying them of the sub.
*
* @param User $user
* @return boolean success
* @throws FeedException
*/
public function subscribeLocalToRemote(User $user)
{
if ($this->isGroup()) {
throw new ServerException("Can't subscribe to a remote group");
}
if ($this->subscribe()) {
if ($user->subscribeTo($this->localProfile())) {
$this->notify($user->getProfile(), ActivityVerb::FOLLOW, $this);
return true;
}
}
return false;
}
/**
* Mark this remote profile as subscribing to the given local user,
* and send appropriate notifications to the user.
*
* This will generally be in response to a subscription notification
* from a foreign site to our local Salmon response channel.
*
* @param User $user
* @return boolean success
*/
public function subscribeRemoteToLocal(User $user)
{
if ($this->isGroup()) {
throw new ServerException("Remote groups can't subscribe to local users");
}
// @fixme use regular channels for subbing, once they accept remote profiles
$sub = new Subscription();
$sub->subscriber = $this->profile_id;
$sub->subscribed = $user->id;
$sub->created = common_sql_now(); // current time
if ($sub->insert()) {
// @fixme use subs_notify() if refactored to take profiles?
mail_subscribe_notify_profile($user, $this->localProfile());
return true;
}
return false;
}
/**
* Send a subscription request to the hub for this feed.
* The hub will later send us a confirmation POST to /main/push/callback.
*
* @return bool true on success, false on failure
* @throws ServerException if feed state is not valid
*/
public function subscribe()
{
$feedsub = FeedSub::ensureFeed($this->feeduri);
if ($feedsub->sub_state == 'active' || $feedsub->sub_state == 'subscribe') {
return true;
} else if ($feedsub->sub_state == '' || $feedsub->sub_state == 'inactive') {
return $feedsub->subscribe();
} else if ('unsubscribe') {
throw new FeedSubException("Unsub is pending, can't subscribe...");
}
}
/**
* Send a PuSH unsubscription request to the hub for this feed.
* The hub will later send us a confirmation POST to /main/push/callback.
*
* @return bool true on success, false on failure
* @throws ServerException if feed state is not valid
*/
public function unsubscribe() {
$feedsub = FeedSub::staticGet('uri', $this->feeduri);
if ($feedsub->sub_state == 'active') {
return $feedsub->unsubscribe();
} else if ($feedsub->sub_state == '' || $feedsub->sub_state == 'inactive' || $feedsub->sub_state == 'unsubscribe') {
return true;
} else if ($feedsub->sub_state == 'subscribe') {
throw new FeedSubException("Feed is awaiting subscription, can't unsub...");
}
}
/**
* Check if this remote profile has any active local subscriptions, and
* if not drop the PuSH subscription feed.
*
* @return boolean
*/
public function garbageCollect()
{
if ($this->isGroup()) {
$members = $this->localGroup()->getMembers(0, 1);
$count = $members->N;
} else {
$count = $this->localProfile()->subscriberCount();
}
if ($count == 0) {
common_log(LOG_INFO, "Unsubscribing from now-unused remote feed $oprofile->feeduri");
$this->unsubscribe();
return true;
} else {
return false;
}
}
/**
* Send an Activity Streams notification to the remote Salmon endpoint,
* if so configured.
*
* @param Profile $actor Actor who did the activity
* @param string $verb Activity::SUBSCRIBE or Activity::JOIN
* @param Object $object object of the action; must define asActivityNoun($tag)
*/
public function notify($actor, $verb, $object=null)
{
if (!($actor instanceof Profile)) {
$type = gettype($actor);
if ($type == 'object') {
$type = get_class($actor);
}
throw new ServerException("Invalid actor passed to " . __METHOD__ . ": " . $type);
}
if ($object == null) {
$object = $this;
}
if ($this->salmonuri) {
$text = 'update';
$id = TagURI::mint('%s:%s:%s',
$verb,
$actor->getURI(),
common_date_iso8601(time()));
// @fixme consolidate all these NS settings somewhere
$attributes = array('xmlns' => Activity::ATOM,
'xmlns:activity' => 'http://activitystrea.ms/spec/1.0/',
'xmlns:thr' => 'http://purl.org/syndication/thread/1.0',
'xmlns:georss' => 'http://www.georss.org/georss',
'xmlns:ostatus' => 'http://ostatus.org/schema/1.0',
'xmlns:poco' => 'http://portablecontacts.net/spec/1.0');
$entry = new XMLStringer();
$entry->elementStart('entry', $attributes);
$entry->element('id', null, $id);
$entry->element('title', null, $text);
$entry->element('summary', null, $text);
$entry->element('published', null, common_date_w3dtf(common_sql_now()));
$entry->element('activity:verb', null, $verb);
$entry->raw($actor->asAtomAuthor());
$entry->raw($actor->asActivityActor());
$entry->raw($object->asActivityNoun('object'));
$entry->elementEnd('entry');
$xml = $entry->getString();
common_log(LOG_INFO, "Posting to Salmon endpoint $this->salmonuri: $xml");
$salmon = new Salmon(); // ?
return $salmon->post($this->salmonuri, $xml);
}
return false;
}
public function notifyActivity($activity)
{
if ($this->salmonuri) {
$xml = '<?xml version="1.0" encoding="UTF-8" ?' . '>' .
$activity->asString(true);
$salmon = new Salmon(); // ?
return $salmon->post($this->salmonuri, $xml);
}
return false;
}
function getBestName()
{
if ($this->isGroup()) {
return $this->localGroup()->getBestName();
} else {
return $this->localProfile()->getBestName();
}
}
function atomFeed($actor)
{
$feed = new Atom10Feed();
// @fixme should these be set up somewhere else?
$feed->addNamespace('activity', 'http://activitystrea.ms/spec/1.0/');
$feed->addNamespace('thr', 'http://purl.org/syndication/thread/1.0');
$feed->addNamespace('georss', 'http://www.georss.org/georss');
$feed->addNamespace('ostatus', 'http://ostatus.org/schema/1.0');
$taguribase = common_config('integration', 'taguri');
$feed->setId("tag:{$taguribase}:UserTimeline:{$actor->id}"); // ???
$feed->setTitle($actor->getBestName() . ' timeline'); // @fixme
$feed->setUpdated(time());
$feed->setPublished(time());
$feed->addLink(common_local_url('ApiTimelineUser',
array('id' => $actor->id,
'type' => 'atom')),
array('rel' => 'self',
'type' => 'application/atom+xml'));
$feed->addLink(common_local_url('userbyid',
array('id' => $actor->id)),
array('rel' => 'alternate',
'type' => 'text/html'));
return $feed;
}
/**
* Read and post notices for updates from the feed.
* Currently assumes that all items in the feed are new,
* coming from a PuSH hub.
*
* @param DOMDocument $feed
*/
public function processFeed($feed, $source)
{
$entries = $feed->getElementsByTagNameNS(Activity::ATOM, 'entry');
if ($entries->length == 0) {
common_log(LOG_ERR, __METHOD__ . ": no entries in feed update, ignoring");
return;
}
for ($i = 0; $i < $entries->length; $i++) {
$entry = $entries->item($i);
$this->processEntry($entry, $feed, $source);
}
}
/**
* Process a posted entry from this feed source.
*
* @param DOMElement $entry
* @param DOMElement $feed for context
*/
public function processEntry($entry, $feed, $source)
{
$activity = new Activity($entry, $feed);
if ($activity->verb == ActivityVerb::POST) {
$this->processPost($activity, $source);
} else {
common_log(LOG_INFO, "Ignoring activity with unrecognized verb $activity->verb");
}
}
/**
* Process an incoming post activity from this remote feed.
* @param Activity $activity
* @param string $method 'push' or 'salmon'
* @return mixed saved Notice or false
* @fixme break up this function, it's getting nasty long
*/
public function processPost($activity, $method)
{
if ($this->isGroup()) {
// A group feed will contain posts from multiple authors.
// @fixme validate these profiles in some way!
$oprofile = self::ensureActorProfile($activity);
if ($oprofile->isGroup()) {
// Groups can't post notices in StatusNet.
common_log(LOG_WARNING, "OStatus: skipping post with group listed as author: $oprofile->uri in feed from $this->uri");
return false;
}
} else {
// Individual user feeds may contain only posts from themselves.
// Authorship is validated against the profile URI on upper layers,
// through PuSH setup or Salmon signature checks.
$actorUri = self::getActorProfileURI($activity);
if ($actorUri == $this->uri) {
// @fixme check if profile info has changed and update it
} else {
common_log(LOG_WARNING, "OStatus: skipping post with bad author: got $actorUri expected $this->uri");
return false;
}
$oprofile = $this;
}
// The id URI will be used as a unique identifier for for the notice,
// protecting against duplicate saves. It isn't required to be a URL;
// tag: URIs for instance are found in Google Buzz feeds.
$sourceUri = $activity->object->id;
$dupe = Notice::staticGet('uri', $sourceUri);
if ($dupe) {
common_log(LOG_INFO, "OStatus: ignoring duplicate post: $sourceUri");
return false;
}
// We'll also want to save a web link to the original notice, if provided.
$sourceUrl = null;
if ($activity->object->link) {
$sourceUrl = $activity->object->link;
} else if ($activity->link) {
$sourceUrl = $activity->link;
} else if (preg_match('!^https?://!', $activity->object->id)) {
$sourceUrl = $activity->object->id;
}
// Get (safe!) HTML and text versions of the content
$rendered = $this->purify($activity->object->content);
$content = html_entity_decode(strip_tags($rendered));
$options = array('is_local' => Notice::REMOTE_OMB,
'url' => $sourceUrl,
'uri' => $sourceUri,
'rendered' => $rendered,
'replies' => array(),
'groups' => array());
// Check for optional attributes...
if (!empty($activity->time)) {
$options['created'] = common_sql_date($activity->time);
}
if ($activity->context) {
// Any individual or group attn: targets?
$replies = $activity->context->attention;
$options['groups'] = $this->filterReplies($oprofile, $replies);
$options['replies'] = $replies;
// Maintain direct reply associations
// @fixme what about conversation ID?
if (!empty($activity->context->replyToID)) {
$orig = Notice::staticGet('uri',
$activity->context->replyToID);
if (!empty($orig)) {
$options['reply_to'] = $orig->id;
}
}
$location = $activity->context->location;
if ($location) {
$options['lat'] = $location->lat;
$options['lon'] = $location->lon;
if ($location->location_id) {
$options['location_ns'] = $location->location_ns;
$options['location_id'] = $location->location_id;
}
}
}
try {
$saved = Notice::saveNew($oprofile->profile_id,
$content,
'ostatus',
$options);
if ($saved) {
Ostatus_source::saveNew($saved, $this, $method);
}
} catch (Exception $e) {
common_log(LOG_ERR, "OStatus save of remote message $sourceUri failed: " . $e->getMessage());
throw $e;
}
common_log(LOG_INFO, "OStatus saved remote message $sourceUri as notice id $saved->id");
return $saved;
}
/**
* Clean up HTML
*/
protected function purify($html)
{
// @fixme disable caching or set a sane temp dir
require_once(INSTALLDIR.'/extlib/HTMLPurifier/HTMLPurifier.auto.php');
$purifier = new HTMLPurifier();
return $purifier->purify($html);
}
/**
* Filters a list of recipient ID URIs to just those for local delivery.
* @param Ostatus_profile local profile of sender
* @param array in/out &$attention_uris set of URIs, will be pruned on output
* @return array of group IDs
*/
protected function filterReplies($sender, &$attention_uris)
{
$groups = array();
$replies = array();
foreach ($attention_uris as $recipient) {
// Is the recipient a local user?
$user = User::staticGet('uri', $recipient);
if ($user) {
// @fixme sender verification, spam etc?
$replies[] = $recipient;
continue;
}
// Is the recipient a remote group?
$oprofile = Ostatus_profile::staticGet('uri', $recipient);
if ($oprofile) {
if ($oprofile->isGroup()) {
// Deliver to local members of this remote group.
// @fixme sender verification?
$groups[] = $oprofile->group_id;
}
continue;
}
// Is the recipient a local group?
// @fixme we need a uri on user_group
// $group = User_group::staticGet('uri', $recipient);
$template = common_local_url('groupbyid', array('id' => '31337'));
$template = preg_quote($template, '/');
$template = str_replace('31337', '(\d+)', $template);
if (preg_match("/$template/", $recipient, $matches)) {
$id = $matches[1];
$group = User_group::staticGet('id', $id);
if ($group) {
// Deliver to all members of this local group if allowed.
if ($sender->localProfile()->isMember($group)) {
$groups[] = $group->id;
}
continue;
}
}
}
$attention_uris = $replies;
return $groups;
}
/**
* @param string $profile_url
* @return Ostatus_profile
* @throws FeedSubException
*/
public static function ensureProfile($profile_uri, $hints=array())
{
// Get the canonical feed URI and check it
$discover = new FeedDiscovery();
$feeduri = $discover->discoverFromURL($profile_uri);
//$feedsub = FeedSub::ensureFeed($feeduri, $discover->feed);
$huburi = $discover->getAtomLink('hub');
$salmonuri = $discover->getAtomLink('salmon');
if (!$huburi) {
// We can only deal with folks with a PuSH hub
throw new FeedSubNoHubException();
}
// Try to get a profile from the feed activity:subject
$feedEl = $discover->feed->documentElement;
$subject = ActivityUtils::child($feedEl, Activity::SUBJECT, Activity::SPEC);
if (!empty($subject)) {
$subjObject = new ActivityObject($subject);
return self::ensureActivityObjectProfile($subjObject, $feeduri, $salmonuri, $hints);
}
// Otherwise, try the feed author
$author = ActivityUtils::child($feedEl, Activity::AUTHOR, Activity::ATOM);
if (!empty($author)) {
$authorObject = new ActivityObject($author);
return self::ensureActivityObjectProfile($authorObject, $feeduri, $salmonuri, $hints);
}
// Sheesh. Not a very nice feed! Let's try fingerpoken in the
// entries.
$entries = $discover->feed->getElementsByTagNameNS(Activity::ATOM, 'entry');
if (!empty($entries) && $entries->length > 0) {
$entry = $entries->item(0);
$actor = ActivityUtils::child($entry, Activity::ACTOR, Activity::SPEC);
if (!empty($actor)) {
$actorObject = new ActivityObject($actor);
return self::ensureActivityObjectProfile($actorObject, $feeduri, $salmonuri, $hints);
}
$author = ActivityUtils::child($entry, Activity::AUTHOR, Activity::ATOM);
if (!empty($author)) {
$authorObject = new ActivityObject($author);
return self::ensureActivityObjectProfile($authorObject, $feeduri, $salmonuri, $hints);
}
}
// XXX: make some educated guesses here
throw new FeedSubException("Can't find enough profile information to make a feed.");
}
/**
*
* Download and update given avatar image
* @param string $url
* @throws Exception in various failure cases
*/
protected function updateAvatar($url)
{
if ($this->isGroup()) {
$self = $this->localGroup();
} else {
$self = $this->localProfile();
}
if (!$self) {
throw new ServerException(sprintf(
_m("Tried to update avatar for unsaved remote profile %s"),
$this->uri));
}
// @fixme this should be better encapsulated
// ripped from oauthstore.php (for old OMB client)
$temp_filename = tempnam(sys_get_temp_dir(), 'listener_avatar');
if (!copy($url, $temp_filename)) {
throw new ServerException(sprintf(_m("Unable to fetch avatar from %s"), $url));
}
if ($this->isGroup()) {
$id = $this->group_id;
} else {
$id = $this->profile_id;
}
// @fixme should we be using different ids?
$imagefile = new ImageFile($id, $temp_filename);
$filename = Avatar::filename($id,
image_type_to_extension($imagefile->type),
null,
common_timestamp());
rename($temp_filename, Avatar::path($filename));
$self->setOriginal($filename);
}
protected static function getActivityObjectAvatar($object)
{
// XXX: go poke around in the feed
return $object->avatar;
}
/**
* Get an appropriate avatar image source URL, if available.
*
* @param ActivityObject $actor
* @param DOMElement $feed
* @return string
*/
protected static function getAvatar($actor, $feed)
{
$url = '';
$icon = '';
if ($actor->avatar) {
$url = trim($actor->avatar);
}
if (!$url) {
// Check <atom:logo> and <atom:icon> on the feed
$els = $feed->childNodes();
if ($els && $els->length) {
for ($i = 0; $i < $els->length; $i++) {
$el = $els->item($i);
if ($el->namespaceURI == Activity::ATOM) {
if (empty($url) && $el->localName == 'logo') {
$url = trim($el->textContent);
break;
}
if (empty($icon) && $el->localName == 'icon') {
// Use as a fallback
$icon = trim($el->textContent);
}
}
}
}
if ($icon && !$url) {
$url = $icon;
}
}
if ($url) {
$opts = array('allowed_schemes' => array('http', 'https'));
if (Validate::uri($url, $opts)) {
return $url;
}
}
return common_path('plugins/OStatus/images/96px-Feed-icon.svg.png');
}
/**
* Fetch, or build if necessary, an Ostatus_profile for the actor
* in a given Activity Streams activity.
*
* @param Activity $activity
* @param string $feeduri if we already know the canonical feed URI!
* @param string $salmonuri if we already know the salmon return channel URI
* @return Ostatus_profile
*/
public static function ensureActorProfile($activity, $feeduri=null, $salmonuri=null)
{
return self::ensureActivityObjectProfile($activity->actor, $feeduri, $salmonuri);
}
public static function ensureActivityObjectProfile($object, $feeduri=null, $salmonuri=null, $hints=array())
{
$profile = self::getActivityObjectProfile($object);
if (!$profile) {
$profile = self::createActivityObjectProfile($object, $feeduri, $salmonuri, $hints);
}
return $profile;
}
/**
* @param Activity $activity
* @return mixed matching Ostatus_profile or false if none known
*/
protected static function getActorProfile($activity)
{
return self::getActivityObjectProfile($activity->actor);
}
protected static function getActivityObjectProfile($object)
{
$uri = self::getActivityObjectProfileURI($object);
return Ostatus_profile::staticGet('uri', $uri);
}
protected static function getActorProfileURI($activity)
{
return self::getActivityObjectProfileURI($activity->actor);
}
/**
* @param Activity $activity
* @return string
* @throws ServerException
*/
protected static function getActivityObjectProfileURI($object)
{
$opts = array('allowed_schemes' => array('http', 'https'));
if ($object->id && Validate::uri($object->id, $opts)) {
return $object->id;
}
if ($object->link && Validate::uri($object->link, $opts)) {
return $object->link;
}
throw new ServerException("No author ID URI found");
}
/**
* @fixme validate stuff somewhere
*/
protected static function createActorProfile($activity, $feeduri=null, $salmonuri=null)
{
$actor = $activity->actor;
self::createActivityObjectProfile($actor, $feeduri, $salmonuri);
}
/**
* Create local ostatus_profile and profile/user_group entries for
* the provided remote user or group.
*
* @param ActivityObject $object
* @param string $feeduri
* @param string $salmonuri
* @param array $hints
*
* @fixme fold $feeduri/$salmonuri into $hints
* @return Ostatus_profile
*/
protected static function createActivityObjectProfile($object, $feeduri=null, $salmonuri=null, $hints=array())
{
$homeuri = $object->id;
$nickname = self::getActivityObjectNickname($object, $hints);
$avatar = self::getActivityObjectAvatar($object);
if (!$homeuri) {
common_log(LOG_DEBUG, __METHOD__ . " empty actor profile URI: " . var_export($activity, true));
throw new ServerException("No profile URI");
}
if (empty($feeduri)) {
if (array_key_exists('feedurl', $hints)) {
$feeduri = $hints['feedurl'];
}
}
if (empty($salmonuri)) {
if (array_key_exists('salmon', $hints)) {
$salmonuri = $hints['salmon'];
}
}
if (!$feeduri || !$salmonuri) {
// Get the canonical feed URI and check it
$discover = new FeedDiscovery();
$feeduri = $discover->discoverFromURL($homeuri);
$huburi = $discover->getAtomLink('hub');
$salmonuri = $discover->getAtomLink('salmon');
if (!$huburi) {
// We can only deal with folks with a PuSH hub
throw new FeedSubNoHubException();
}
}
$oprofile = new Ostatus_profile();
$oprofile->uri = $homeuri;
$oprofile->feeduri = $feeduri;
$oprofile->salmonuri = $salmonuri;
$oprofile->created = common_sql_now();
$oprofile->modified = common_sql_now();
if ($object->type == ActivityObject::PERSON) {
$profile = new Profile();
$profile->nickname = $nickname;
$profile->fullname = $object->title;
if (!empty($object->link)) {
$profile->profileurl = $object->link;
} else if (array_key_exists('profileurl', $hints)) {
$profile->profileurl = $hints['profileurl'];
}
$profile->created = common_sql_now();
// @fixme bio
// @fixme tags/categories
// @fixme location?
// @todo tags from categories
// @todo lat/lon/location?
$oprofile->profile_id = $profile->insert();
if (!$oprofile->profile_id) {
throw new ServerException("Can't save local profile");
}
} else {
$group = new User_group();
$group->nickname = $nickname;
$group->fullname = $object->title;
// @fixme no canonical profileurl; using homepage instead for now
$group->homepage = $homeuri;
$group->created = common_sql_now();
// @fixme homepage
// @fixme bio
// @fixme tags/categories
// @fixme location?
// @todo tags from categories
// @todo lat/lon/location?
$oprofile->group_id = $group->insert();
if (!$oprofile->group_id) {
throw new ServerException("Can't save local profile");
}
}
$ok = $oprofile->insert();
if ($ok) {
if ($avatar) {
$oprofile->updateAvatar($avatar);
}
return $oprofile;
} else {
throw new ServerException("Can't save OStatus profile");
}
}
protected static function getActivityObjectNickname($object, $hints=array())
{
if (!empty($object->nickname)) {
return common_nicknamize($object->nickname);
}
// Try the definitive ID
$nickname = self::nicknameFromURI($object->id);
// Try a Webfinger if one was passed (way) down
if (empty($nickname)) {
if (array_key_exists('webfinger', $hints)) {
$nickname = self::nicknameFromURI($hints['webfinger']);
}
}
// Try the name
if (empty($nickname)) {
$nickname = common_nicknamize($object->title);
}
return $nickname;
}
protected static function nicknameFromURI($uri)
{
preg_match('/(\w+):/', $uri, $matches);
$protocol = $matches[1];
switch ($protocol) {
case 'acct':
case 'mailto':
if (preg_match("/^$protocol:(.*)?@.*\$/", $uri, $matches)) {
return common_canonical_nickname($matches[1]);
}
return null;
case 'http':
return common_url_to_nickname($uri);
break;
default:
return null;
}
}
public static function ensureWebfinger($addr)
{
// First, look it up
$oprofile = Ostatus_profile::staticGet('uri', 'acct:'.$addr);
if (!empty($oprofile)) {
return $oprofile;
}
// Now, try some discovery
$wf = new Webfinger();
$result = $wf->lookup($addr);
if (!$result) {
return null;
}
foreach ($result->links as $link) {
switch ($link['rel']) {
case Webfinger::PROFILEPAGE:
$profileUrl = $link['href'];
break;
case 'salmon':
$salmonEndpoint = $link['href'];
break;
case Webfinger::UPDATESFROM:
$feedUrl = $link['href'];
break;
default:
common_log(LOG_NOTICE, "Don't know what to do with rel = '{$link['rel']}'");
break;
}
}
$hints = array('webfinger' => $addr,
'profileurl' => $profileUrl,
'feedurl' => $feedUrl,
'salmon' => $salmonEndpoint);
// If we got a feed URL, try that
if (isset($feedUrl)) {
try {
$oprofile = self::ensureProfile($feedUrl, $hints);
return $oprofile;
} catch (Exception $e) {
common_log(LOG_WARNING, "Failed creating profile from feed URL '$feedUrl': " . $e->getMessage());
// keep looking
}
}
// If we got a profile page, try that!
if (isset($profileUrl)) {
try {
$oprofile = self::ensureProfile($profileUrl, $hints);
return $oprofile;
} catch (Exception $e) {
common_log(LOG_WARNING, "Failed creating profile from profile URL '$profileUrl': " . $e->getMessage());
// keep looking
}
}
// XXX: try hcard
// XXX: try FOAF
if (isset($salmonEndpoint)) {
// An account URL, a salmon endpoint, and a dream? Not much to go
// on, but let's give it a try
$uri = 'acct:'.$addr;
$profile = new Profile();
$profile->nickname = self::nicknameFromUri($uri);
$profile->created = common_sql_now();
if (isset($profileUrl)) {
$profile->profileurl = $profileUrl;
}
$profile_id = $profile->insert();
if (!$profile_id) {
common_log_db_error($profile, 'INSERT', __FILE__);
throw new Exception("Couldn't save profile for '$addr'");
}
$oprofile = new Ostatus_profile();
$oprofile->uri = $uri;
$oprofile->salmonuri = $salmonEndpoint;
$oprofile->profile_id = $profile_id;
$oprofile->created = common_sql_now();
if (isset($feedUrl)) {
$profile->feeduri = $feedUrl;
}
$result = $oprofile->insert();
if (!$result) {
common_log_db_error($oprofile, 'INSERT', __FILE__);
throw new Exception("Couldn't save ostatus_profile for '$addr'");
}
return $oprofile;
}
return null;
}
}