3 * StatusNet - the distributed open-source microblogging tool
4 * Copyright (C) 2009-2010, StatusNet, Inc.
6 * This program is free software: you can redistribute it and/or modify
7 * it under the terms of the GNU Affero General Public License as published by
8 * the Free Software Foundation, either version 3 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU Affero General Public License for more details.
16 * You should have received a copy of the GNU Affero General Public License
17 * along with this program. If not, see <http://www.gnu.org/licenses/>.
21 * @package OStatusPlugin
22 * @maintainer Brion Vibber <brion@status.net>
25 class Ostatus_profile extends Memcached_DataObject
27 public $__table = 'ostatus_profile';
36 public $avatar; // remote URL of the last avatar we saved
41 public /*static*/ function staticGet($k, $v=null)
43 return parent::staticGet(__CLASS__, $k, $v);
47 * return table definition for DB_DataObject
49 * DB_DataObject needs to know something about the table to manipulate
50 * instances. This method provides all the DB_DataObject needs to know.
52 * @return array array of column definitions
57 return array('uri' => DB_DATAOBJECT_STR + DB_DATAOBJECT_NOTNULL,
58 'profile_id' => DB_DATAOBJECT_INT,
59 'group_id' => DB_DATAOBJECT_INT,
60 'feeduri' => DB_DATAOBJECT_STR,
61 'salmonuri' => DB_DATAOBJECT_STR,
62 'avatar' => DB_DATAOBJECT_STR,
63 'created' => DB_DATAOBJECT_STR + DB_DATAOBJECT_DATE + DB_DATAOBJECT_TIME + DB_DATAOBJECT_NOTNULL,
64 'modified' => DB_DATAOBJECT_STR + DB_DATAOBJECT_DATE + DB_DATAOBJECT_TIME + DB_DATAOBJECT_NOTNULL);
67 static function schemaDef()
69 return array(new ColumnDef('uri', 'varchar',
71 new ColumnDef('profile_id', 'integer',
73 new ColumnDef('group_id', 'integer',
75 new ColumnDef('feeduri', 'varchar',
77 new ColumnDef('salmonuri', 'text',
79 new ColumnDef('avatar', 'text',
81 new ColumnDef('created', 'datetime',
83 new ColumnDef('modified', 'datetime',
88 * return key definitions for DB_DataObject
90 * DB_DataObject needs to know about keys that the table has; this function
93 * @return array key definitions
98 return array_keys($this->keyTypes());
102 * return key definitions for Memcached_DataObject
104 * Our caching system uses the same key definitions, but uses a different
105 * method to get them.
107 * @return array key definitions
112 return array('uri' => 'K', 'profile_id' => 'U', 'group_id' => 'U', 'feeduri' => 'U');
115 function sequenceKey()
117 return array(false, false, false);
121 * Fetch the StatusNet-side profile for this feed
124 public function localProfile()
126 if ($this->profile_id) {
127 return Profile::staticGet('id', $this->profile_id);
133 * Fetch the StatusNet-side profile for this feed
136 public function localGroup()
138 if ($this->group_id) {
139 return User_group::staticGet('id', $this->group_id);
145 * Returns an ActivityObject describing this remote user or group profile.
146 * Can then be used to generate Atom chunks.
148 * @return ActivityObject
150 function asActivityObject()
152 if ($this->isGroup()) {
153 return ActivityObject::fromGroup($this->localGroup());
155 return ActivityObject::fromProfile($this->localProfile());
160 * Returns an XML string fragment with profile information as an
161 * Activity Streams noun object with the given element type.
163 * Assumes that 'activity' namespace has been previously defined.
165 * @fixme replace with wrappers on asActivityObject when it's got everything.
167 * @param string $element one of 'actor', 'subject', 'object', 'target'
170 function asActivityNoun($element)
172 if ($this->isGroup()) {
173 $noun = ActivityObject::fromGroup($this->localGroup());
174 return $noun->asString('activity:' . $element);
176 $noun = ActivityObject::fromProfile($this->localProfile());
177 return $noun->asString('activity:' . $element);
182 * @return boolean true if this is a remote group
186 if ($this->profile_id && !$this->group_id) {
188 } else if ($this->group_id && !$this->profile_id) {
190 } else if ($this->group_id && $this->profile_id) {
191 throw new ServerException("Invalid ostatus_profile state: both group and profile IDs set for $this->uri");
193 throw new ServerException("Invalid ostatus_profile state: both group and profile IDs empty for $this->uri");
198 * Send a subscription request to the hub for this feed.
199 * The hub will later send us a confirmation POST to /main/push/callback.
201 * @return bool true on success, false on failure
202 * @throws ServerException if feed state is not valid
204 public function subscribe()
206 $feedsub = FeedSub::ensureFeed($this->feeduri);
207 if ($feedsub->sub_state == 'active') {
208 // Active subscription, we don't need to do anything.
211 // Inactive or we got left in an inconsistent state.
212 // Run a subscription request to make sure we're current!
213 return $feedsub->subscribe();
218 * Send a PuSH unsubscription request to the hub for this feed.
219 * The hub will later send us a confirmation POST to /main/push/callback.
221 * @return bool true on success, false on failure
222 * @throws ServerException if feed state is not valid
224 public function unsubscribe() {
225 $feedsub = FeedSub::staticGet('uri', $this->feeduri);
226 if (!$feedsub || $feedsub->sub_state == '' || $feedsub->sub_state == 'inactive') {
227 // No active PuSH subscription, we can just leave it be.
230 // PuSH subscription is either active or in an indeterminate state.
231 // Send an unsubscribe.
232 return $feedsub->unsubscribe();
237 * Check if this remote profile has any active local subscriptions, and
238 * if not drop the PuSH subscription feed.
242 public function garbageCollect()
244 if ($this->isGroup()) {
245 $members = $this->localGroup()->getMembers(0, 1);
246 $count = $members->N;
248 $count = $this->localProfile()->subscriberCount();
251 common_log(LOG_INFO, "Unsubscribing from now-unused remote feed $this->feeduri");
252 $this->unsubscribe();
260 * Send an Activity Streams notification to the remote Salmon endpoint,
263 * @param Profile $actor Actor who did the activity
264 * @param string $verb Activity::SUBSCRIBE or Activity::JOIN
265 * @param Object $object object of the action; must define asActivityNoun($tag)
267 public function notify($actor, $verb, $object=null)
269 if (!($actor instanceof Profile)) {
270 $type = gettype($actor);
271 if ($type == 'object') {
272 $type = get_class($actor);
274 throw new ServerException("Invalid actor passed to " . __METHOD__ . ": " . $type);
276 if ($object == null) {
279 if ($this->salmonuri) {
282 $id = TagURI::mint('%s:%s:%s',
285 common_date_iso8601(time()));
287 // @fixme consolidate all these NS settings somewhere
288 $attributes = array('xmlns' => Activity::ATOM,
289 'xmlns:activity' => 'http://activitystrea.ms/spec/1.0/',
290 'xmlns:thr' => 'http://purl.org/syndication/thread/1.0',
291 'xmlns:georss' => 'http://www.georss.org/georss',
292 'xmlns:ostatus' => 'http://ostatus.org/schema/1.0',
293 'xmlns:poco' => 'http://portablecontacts.net/spec/1.0',
294 'xmlns:media' => 'http://purl.org/syndication/atommedia');
296 $entry = new XMLStringer();
297 $entry->elementStart('entry', $attributes);
298 $entry->element('id', null, $id);
299 $entry->element('title', null, $text);
300 $entry->element('summary', null, $text);
301 $entry->element('published', null, common_date_w3dtf(common_sql_now()));
303 $entry->element('activity:verb', null, $verb);
304 $entry->raw($actor->asAtomAuthor());
305 $entry->raw($actor->asActivityActor());
306 $entry->raw($object->asActivityNoun('object'));
307 $entry->elementEnd('entry');
309 $xml = $entry->getString();
310 common_log(LOG_INFO, "Posting to Salmon endpoint $this->salmonuri: $xml");
312 $salmon = new Salmon(); // ?
313 return $salmon->post($this->salmonuri, $xml, $actor);
319 * Send a Salmon notification ping immediately, and confirm that we got
320 * an acceptable response from the remote site.
322 * @param mixed $entry XML string, Notice, or Activity
323 * @return boolean success
325 public function notifyActivity($entry, $actor)
327 if ($this->salmonuri) {
328 $salmon = new Salmon();
329 return $salmon->post($this->salmonuri, $this->notifyPrepXml($entry), $actor);
336 * Queue a Salmon notification for later. If queues are disabled we'll
337 * send immediately but won't get the return value.
339 * @param mixed $entry XML string, Notice, or Activity
340 * @return boolean success
342 public function notifyDeferred($entry, $actor)
344 if ($this->salmonuri) {
345 $data = array('salmonuri' => $this->salmonuri,
346 'entry' => $this->notifyPrepXml($entry),
347 'actor' => $actor->id);
349 $qm = QueueManager::get();
350 return $qm->enqueue($data, 'salmon');
356 protected function notifyPrepXml($entry)
358 $preamble = '<?xml version="1.0" encoding="UTF-8" ?' . '>';
359 if (is_string($entry)) {
361 } else if ($entry instanceof Activity) {
362 return $preamble . $entry->asString(true);
363 } else if ($entry instanceof Notice) {
364 return $preamble . $entry->asAtomEntry(true, true);
366 throw new ServerException("Invalid type passed to Ostatus_profile::notify; must be XML string or Activity entry");
370 function getBestName()
372 if ($this->isGroup()) {
373 return $this->localGroup()->getBestName();
375 return $this->localProfile()->getBestName();
380 * Read and post notices for updates from the feed.
381 * Currently assumes that all items in the feed are new,
382 * coming from a PuSH hub.
384 * @param DOMDocument $doc
385 * @param string $source identifier ("push")
387 public function processFeed(DOMDocument $doc, $source)
389 $feed = $doc->documentElement;
391 if ($feed->localName == 'feed' && $feed->namespaceURI == Activity::ATOM) {
392 $this->processAtomFeed($feed, $source);
393 } else if ($feed->localName == 'rss') { // @fixme check namespace
394 $this->processRssFeed($feed, $source);
396 throw new Exception("Unknown feed format.");
400 public function processAtomFeed(DOMElement $feed, $source)
402 $entries = $feed->getElementsByTagNameNS(Activity::ATOM, 'entry');
403 if ($entries->length == 0) {
404 common_log(LOG_ERR, __METHOD__ . ": no entries in feed update, ignoring");
408 for ($i = 0; $i < $entries->length; $i++) {
409 $entry = $entries->item($i);
410 $this->processEntry($entry, $feed, $source);
414 public function processRssFeed(DOMElement $rss, $source)
416 $channels = $rss->getElementsByTagName('channel');
418 if ($channels->length == 0) {
419 throw new Exception("RSS feed without a channel.");
420 } else if ($channels->length > 1) {
421 common_log(LOG_WARNING, __METHOD__ . ": more than one channel in an RSS feed");
424 $channel = $channels->item(0);
426 $items = $channel->getElementsByTagName('item');
428 for ($i = 0; $i < $items->length; $i++) {
429 $item = $items->item($i);
430 $this->processEntry($item, $channel, $source);
435 * Process a posted entry from this feed source.
437 * @param DOMElement $entry
438 * @param DOMElement $feed for context
439 * @param string $source identifier ("push" or "salmon")
441 public function processEntry($entry, $feed, $source)
443 $activity = new Activity($entry, $feed);
445 // @todo process all activity objects
446 switch ($activity->objects[0]->type) {
447 case ActivityObject::ARTICLE:
448 case ActivityObject::BLOGENTRY:
449 case ActivityObject::NOTE:
450 case ActivityObject::STATUS:
451 case ActivityObject::COMMENT:
454 throw new ClientException("Can't handle that kind of post.");
457 if ($activity->verb == ActivityVerb::POST) {
458 $this->processPost($activity, $source);
460 common_log(LOG_INFO, "Ignoring activity with unrecognized verb $activity->verb");
465 * Process an incoming post activity from this remote feed.
466 * @param Activity $activity
467 * @param string $method 'push' or 'salmon'
468 * @return mixed saved Notice or false
469 * @fixme break up this function, it's getting nasty long
471 public function processPost($activity, $method)
473 if ($this->isGroup()) {
474 // A group feed will contain posts from multiple authors.
475 // @fixme validate these profiles in some way!
476 $oprofile = self::ensureActorProfile($activity);
477 if ($oprofile->isGroup()) {
478 // Groups can't post notices in StatusNet.
479 common_log(LOG_WARNING, "OStatus: skipping post with group listed as author: $oprofile->uri in feed from $this->uri");
483 $actor = $activity->actor;
486 // OK here! assume the default
487 } else if ($actor->id == $this->uri || $actor->link == $this->uri) {
488 $this->updateFromActivityObject($actor);
490 throw new Exception("Got an actor '{$actor->title}' ({$actor->id}) on single-user feed for {$this->uri}");
496 // It's not always an ActivityObject::NOTE, but... let's just say it is.
498 $note = $activity->objects[0];
500 // The id URI will be used as a unique identifier for for the notice,
501 // protecting against duplicate saves. It isn't required to be a URL;
502 // tag: URIs for instance are found in Google Buzz feeds.
503 $sourceUri = $note->id;
504 $dupe = Notice::staticGet('uri', $sourceUri);
506 common_log(LOG_INFO, "OStatus: ignoring duplicate post: $sourceUri");
510 // We'll also want to save a web link to the original notice, if provided.
513 $sourceUrl = $note->link;
514 } else if ($activity->link) {
515 $sourceUrl = $activity->link;
516 } else if (preg_match('!^https?://!', $note->id)) {
517 $sourceUrl = $note->id;
520 // Use summary as fallback for content
522 if (!empty($note->content)) {
523 $sourceContent = $note->content;
524 } else if (!empty($note->summary)) {
525 $sourceContent = $note->summary;
526 } else if (!empty($note->title)) {
527 $sourceContent = $note->title;
529 // @fixme fetch from $sourceUrl?
530 throw new ClientException("No content for notice {$sourceUri}");
533 // Get (safe!) HTML and text versions of the content
535 $rendered = $this->purify($sourceContent);
536 $content = html_entity_decode(strip_tags($rendered));
538 $shortened = common_shorten_links($content);
540 // If it's too long, try using the summary, and make the
541 // HTML an attachment.
545 if (Notice::contentTooLong($shortened)) {
546 $attachment = $this->saveHTMLFile($note->title, $rendered);
547 $summary = html_entity_decode(strip_tags($note->summary));
548 if (empty($summary)) {
551 $shortSummary = common_shorten_links($summary);
552 if (Notice::contentTooLong($shortSummary)) {
553 $url = common_shorten_url(common_local_url('attachment',
554 array('attachment' => $attachment->id)));
555 $shortSummary = substr($shortSummary,
557 Notice::maxContent() - (mb_strlen($url) + 2));
558 $shortSummary .= '…';
559 $content = $shortSummary . ' ' . $url;
561 // We mark up the attachment link specially for the HTML output
562 // so we can fold-out the full version inline.
563 $attachUrl = common_local_url('attachment',
564 array('attachment' => $attachment->id));
565 $rendered = common_render_text($shortSummary) .
568 htmlspecialchars($attachUrl) .
569 '" class="attachment more">' .
570 // TRANS: expansion link for too-long remote messages
571 htmlspecialchars(_m('more')) .
576 $options = array('is_local' => Notice::REMOTE_OMB,
579 'rendered' => $rendered,
580 'replies' => array(),
585 // Check for optional attributes...
587 if (!empty($activity->time)) {
588 $options['created'] = common_sql_date($activity->time);
591 if ($activity->context) {
592 // Any individual or group attn: targets?
593 $replies = $activity->context->attention;
594 $options['groups'] = $this->filterReplies($oprofile, $replies);
595 $options['replies'] = $replies;
597 // Maintain direct reply associations
598 // @fixme what about conversation ID?
599 if (!empty($activity->context->replyToID)) {
600 $orig = Notice::staticGet('uri',
601 $activity->context->replyToID);
603 $options['reply_to'] = $orig->id;
607 $location = $activity->context->location;
609 $options['lat'] = $location->lat;
610 $options['lon'] = $location->lon;
611 if ($location->location_id) {
612 $options['location_ns'] = $location->location_ns;
613 $options['location_id'] = $location->location_id;
618 // Atom categories <-> hashtags
619 foreach ($activity->categories as $cat) {
621 $term = common_canonical_tag($cat->term);
623 $options['tags'][] = $term;
628 // Atom enclosures -> attachment URLs
629 foreach ($activity->enclosures as $href) {
630 // @fixme save these locally or....?
631 $options['urls'][] = $href;
635 $saved = Notice::saveNew($oprofile->profile_id,
640 Ostatus_source::saveNew($saved, $this, $method);
641 if (!empty($attachment)) {
642 File_to_post::processNew($attachment->id, $saved->id);
645 } catch (Exception $e) {
646 common_log(LOG_ERR, "OStatus save of remote message $sourceUri failed: " . $e->getMessage());
649 common_log(LOG_INFO, "OStatus saved remote message $sourceUri as notice id $saved->id");
656 protected function purify($html)
658 require_once INSTALLDIR.'/extlib/htmLawed/htmLawed.php';
659 $config = array('safe' => 1,
660 'deny_attribute' => 'id,style,on*');
661 return htmLawed($html, $config);
665 * Filters a list of recipient ID URIs to just those for local delivery.
666 * @param Ostatus_profile local profile of sender
667 * @param array in/out &$attention_uris set of URIs, will be pruned on output
668 * @return array of group IDs
670 protected function filterReplies($sender, &$attention_uris)
672 common_log(LOG_DEBUG, "Original reply recipients: " . implode(', ', $attention_uris));
675 foreach ($attention_uris as $recipient) {
676 // Is the recipient a local user?
677 $user = User::staticGet('uri', $recipient);
679 // @fixme sender verification, spam etc?
680 $replies[] = $recipient;
684 // Is the recipient a remote group?
685 $oprofile = Ostatus_profile::staticGet('uri', $recipient);
687 if ($oprofile->isGroup()) {
688 // Deliver to local members of this remote group.
689 // @fixme sender verification?
690 $groups[] = $oprofile->group_id;
692 common_log(LOG_DEBUG, "Skipping reply to remote profile $recipient");
697 // Is the recipient a local group?
698 // @fixme uri on user_group isn't reliable yet
699 // $group = User_group::staticGet('uri', $recipient);
700 $id = OStatusPlugin::localGroupFromUrl($recipient);
702 $group = User_group::staticGet('id', $id);
704 // Deliver to all members of this local group if allowed.
705 $profile = $sender->localProfile();
706 if ($profile->isMember($group)) {
707 $groups[] = $group->id;
709 common_log(LOG_DEBUG, "Skipping reply to local group $group->nickname as sender $profile->id is not a member");
713 common_log(LOG_DEBUG, "Skipping reply to bogus group $recipient");
717 common_log(LOG_DEBUG, "Skipping reply to unrecognized profile $recipient");
720 $attention_uris = $replies;
721 common_log(LOG_DEBUG, "Local reply recipients: " . implode(', ', $replies));
722 common_log(LOG_DEBUG, "Local group recipients: " . implode(', ', $groups));
727 * Look up and if necessary create an Ostatus_profile for the remote entity
728 * with the given profile page URL. This should never return null -- you
729 * will either get an object or an exception will be thrown.
731 * @param string $profile_url
732 * @return Ostatus_profile
736 public static function ensureProfileURL($profile_url, $hints=array())
738 $oprofile = self::getFromProfileURL($profile_url);
740 if (!empty($oprofile)) {
744 $hints['profileurl'] = $profile_url;
749 $client = new HTTPClient();
750 $client->setHeader('Accept', 'text/html,application/xhtml+xml');
751 $response = $client->get($profile_url);
753 if (!$response->isOk()) {
754 throw new Exception("Could not reach profile page: " . $profile_url);
757 // Check if we have a non-canonical URL
759 $finalUrl = $response->getUrl();
761 if ($finalUrl != $profile_url) {
763 $hints['profileurl'] = $finalUrl;
765 $oprofile = self::getFromProfileURL($finalUrl);
767 if (!empty($oprofile)) {
772 // Try to get some hCard data
774 $body = $response->getBody();
776 $hcardHints = DiscoveryHints::hcardHints($body, $finalUrl);
778 if (!empty($hcardHints)) {
779 $hints = array_merge($hints, $hcardHints);
782 // Check if they've got an LRDD header
784 $lrdd = LinkHeader::getLink($response, 'lrdd', 'application/xrd+xml');
788 $xrd = Discovery::fetchXrd($lrdd);
789 $xrdHints = DiscoveryHints::fromXRD($xrd);
791 $hints = array_merge($hints, $xrdHints);
794 // If discovery found a feedurl (probably from LRDD), use it.
796 if (array_key_exists('feedurl', $hints)) {
797 return self::ensureFeedURL($hints['feedurl'], $hints);
800 // Get the feed URL from HTML
802 $discover = new FeedDiscovery();
804 $feedurl = $discover->discoverFromHTML($finalUrl, $body);
806 if (!empty($feedurl)) {
807 $hints['feedurl'] = $feedurl;
808 return self::ensureFeedURL($feedurl, $hints);
811 throw new Exception("Could not find a feed URL for profile page " . $finalUrl);
815 * Look up the Ostatus_profile, if present, for a remote entity with the
816 * given profile page URL. Will return null for both unknown and invalid
819 * @return mixed Ostatus_profile or null
820 * @throws Exception for local profiles
822 static function getFromProfileURL($profile_url)
824 $profile = Profile::staticGet('profileurl', $profile_url);
826 if (empty($profile)) {
830 // Is it a known Ostatus profile?
832 $oprofile = Ostatus_profile::staticGet('profile_id', $profile->id);
834 if (!empty($oprofile)) {
838 // Is it a local user?
840 $user = User::staticGet('id', $profile->id);
843 throw new Exception("'$profile_url' is the profile for local user '{$user->nickname}'.");
846 // Continue discovery; it's a remote profile
847 // for OMB or some other protocol, may also
854 * Look up and if necessary create an Ostatus_profile for remote entity
855 * with the given update feed. This should never return null -- you will
856 * either get an object or an exception will be thrown.
858 * @return Ostatus_profile
861 public static function ensureFeedURL($feed_url, $hints=array())
863 $discover = new FeedDiscovery();
865 $feeduri = $discover->discoverFromFeedURL($feed_url);
866 $hints['feedurl'] = $feeduri;
868 $huburi = $discover->getAtomLink('hub');
869 $hints['hub'] = $huburi;
870 $salmonuri = $discover->getAtomLink(Salmon::NS_REPLIES);
871 $hints['salmon'] = $salmonuri;
874 // We can only deal with folks with a PuSH hub
875 throw new FeedSubNoHubException();
878 $feedEl = $discover->root;
880 if ($feedEl->tagName == 'feed') {
881 return self::ensureAtomFeed($feedEl, $hints);
882 } else if ($feedEl->tagName == 'channel') {
883 return self::ensureRssChannel($feedEl, $hints);
885 throw new FeedSubBadXmlException($feeduri);
890 * Look up and, if necessary, create an Ostatus_profile for the remote
891 * profile with the given Atom feed - actually loaded from the feed.
892 * This should never return null -- you will either get an object or
893 * an exception will be thrown.
895 * @param DOMElement $feedEl root element of a loaded Atom feed
896 * @param array $hints additional discovery information passed from higher levels
897 * @fixme should this be marked public?
898 * @return Ostatus_profile
901 public static function ensureAtomFeed($feedEl, $hints)
903 // Try to get a profile from the feed activity:subject
905 $subject = ActivityUtils::child($feedEl, Activity::SUBJECT, Activity::SPEC);
907 if (!empty($subject)) {
908 $subjObject = new ActivityObject($subject);
909 return self::ensureActivityObjectProfile($subjObject, $hints);
912 // Otherwise, try the feed author
914 $author = ActivityUtils::child($feedEl, Activity::AUTHOR, Activity::ATOM);
916 if (!empty($author)) {
917 $authorObject = new ActivityObject($author);
918 return self::ensureActivityObjectProfile($authorObject, $hints);
921 // Sheesh. Not a very nice feed! Let's try fingerpoken in the
924 $entries = $feedEl->getElementsByTagNameNS(Activity::ATOM, 'entry');
926 if (!empty($entries) && $entries->length > 0) {
928 $entry = $entries->item(0);
930 $actor = ActivityUtils::child($entry, Activity::ACTOR, Activity::SPEC);
932 if (!empty($actor)) {
933 $actorObject = new ActivityObject($actor);
934 return self::ensureActivityObjectProfile($actorObject, $hints);
938 $author = ActivityUtils::child($entry, Activity::AUTHOR, Activity::ATOM);
940 if (!empty($author)) {
941 $authorObject = new ActivityObject($author);
942 return self::ensureActivityObjectProfile($authorObject, $hints);
946 // XXX: make some educated guesses here
948 throw new FeedSubException("Can't find enough profile information to make a feed.");
952 * Look up and, if necessary, create an Ostatus_profile for the remote
953 * profile with the given RSS feed - actually loaded from the feed.
954 * This should never return null -- you will either get an object or
955 * an exception will be thrown.
957 * @param DOMElement $feedEl root element of a loaded RSS feed
958 * @param array $hints additional discovery information passed from higher levels
959 * @fixme should this be marked public?
960 * @return Ostatus_profile
963 public static function ensureRssChannel($feedEl, $hints)
965 // Special-case for Posterous. They have some nice metadata in their
966 // posterous:author elements. We should use them instead of the channel.
968 $items = $feedEl->getElementsByTagName('item');
970 if ($items->length > 0) {
971 $item = $items->item(0);
972 $authorEl = ActivityUtils::child($item, ActivityObject::AUTHOR, ActivityObject::POSTEROUS);
973 if (!empty($authorEl)) {
974 $obj = ActivityObject::fromPosterousAuthor($authorEl);
975 // Posterous has multiple authors per feed, and multiple feeds
976 // per author. We check if this is the "main" feed for this author.
977 if (array_key_exists('profileurl', $hints) &&
978 !empty($obj->poco) &&
979 common_url_to_nickname($hints['profileurl']) == $obj->poco->preferredUsername) {
980 return self::ensureActivityObjectProfile($obj, $hints);
985 // @fixme we should check whether this feed has elements
986 // with different <author> or <dc:creator> elements, and... I dunno.
987 // Do something about that.
989 $obj = ActivityObject::fromRssChannel($feedEl);
991 return self::ensureActivityObjectProfile($obj, $hints);
995 * Download and update given avatar image
998 * @throws Exception in various failure cases
1000 protected function updateAvatar($url)
1002 if ($url == $this->avatar) {
1003 // We've already got this one.
1006 if (!common_valid_http_url($url)) {
1007 throw new ServerException(_m("Invalid avatar URL %s"), $url);
1010 if ($this->isGroup()) {
1011 $self = $this->localGroup();
1013 $self = $this->localProfile();
1016 throw new ServerException(sprintf(
1017 _m("Tried to update avatar for unsaved remote profile %s"),
1021 // @fixme this should be better encapsulated
1022 // ripped from oauthstore.php (for old OMB client)
1023 $temp_filename = tempnam(sys_get_temp_dir(), 'listener_avatar');
1024 if (!copy($url, $temp_filename)) {
1025 throw new ServerException(sprintf(_m("Unable to fetch avatar from %s"), $url));
1028 if ($this->isGroup()) {
1029 $id = $this->group_id;
1031 $id = $this->profile_id;
1033 // @fixme should we be using different ids?
1034 $imagefile = new ImageFile($id, $temp_filename);
1035 $filename = Avatar::filename($id,
1036 image_type_to_extension($imagefile->type),
1038 common_timestamp());
1039 rename($temp_filename, Avatar::path($filename));
1040 $self->setOriginal($filename);
1042 $orig = clone($this);
1043 $this->avatar = $url;
1044 $this->update($orig);
1048 * Pull avatar URL from ActivityObject or profile hints
1050 * @param ActivityObject $object
1051 * @param array $hints
1052 * @return mixed URL string or false
1055 protected static function getActivityObjectAvatar($object, $hints=array())
1057 if ($object->avatarLinks) {
1059 // Take the exact-size avatar, or the largest avatar, or the first avatar if all sizeless
1060 foreach ($object->avatarLinks as $avatar) {
1061 if ($avatar->width == AVATAR_PROFILE_SIZE && $avatar->height = AVATAR_PROFILE_SIZE) {
1066 if (!$best || $avatar->width > $best->width) {
1071 } else if (array_key_exists('avatar', $hints)) {
1072 return $hints['avatar'];
1078 * Get an appropriate avatar image source URL, if available.
1080 * @param ActivityObject $actor
1081 * @param DOMElement $feed
1085 protected static function getAvatar($actor, $feed)
1089 if ($actor->avatar) {
1090 $url = trim($actor->avatar);
1093 // Check <atom:logo> and <atom:icon> on the feed
1094 $els = $feed->childNodes();
1095 if ($els && $els->length) {
1096 for ($i = 0; $i < $els->length; $i++) {
1097 $el = $els->item($i);
1098 if ($el->namespaceURI == Activity::ATOM) {
1099 if (empty($url) && $el->localName == 'logo') {
1100 $url = trim($el->textContent);
1103 if (empty($icon) && $el->localName == 'icon') {
1104 // Use as a fallback
1105 $icon = trim($el->textContent);
1110 if ($icon && !$url) {
1115 $opts = array('allowed_schemes' => array('http', 'https'));
1116 if (Validate::uri($url, $opts)) {
1120 return common_path('plugins/OStatus/images/96px-Feed-icon.svg.png');
1124 * Fetch, or build if necessary, an Ostatus_profile for the actor
1125 * in a given Activity Streams activity.
1126 * This should never return null -- you will either get an object or
1127 * an exception will be thrown.
1129 * @param Activity $activity
1130 * @param string $feeduri if we already know the canonical feed URI!
1131 * @param string $salmonuri if we already know the salmon return channel URI
1132 * @return Ostatus_profile
1136 public static function ensureActorProfile($activity, $hints=array())
1138 return self::ensureActivityObjectProfile($activity->actor, $hints);
1142 * Fetch, or build if necessary, an Ostatus_profile for the profile
1143 * in a given Activity Streams object (can be subject, actor, or object).
1144 * This should never return null -- you will either get an object or
1145 * an exception will be thrown.
1147 * @param ActivityObject $object
1148 * @param array $hints additional discovery information passed from higher levels
1149 * @return Ostatus_profile
1153 public static function ensureActivityObjectProfile($object, $hints=array())
1155 $profile = self::getActivityObjectProfile($object);
1157 $profile->updateFromActivityObject($object, $hints);
1159 $profile = self::createActivityObjectProfile($object, $hints);
1165 * @param Activity $activity
1166 * @return mixed matching Ostatus_profile or false if none known
1167 * @throws ServerException if feed info invalid
1169 public static function getActorProfile($activity)
1171 return self::getActivityObjectProfile($activity->actor);
1175 * @param ActivityObject $activity
1176 * @return mixed matching Ostatus_profile or false if none known
1177 * @throws ServerException if feed info invalid
1179 protected static function getActivityObjectProfile($object)
1181 $uri = self::getActivityObjectProfileURI($object);
1182 return Ostatus_profile::staticGet('uri', $uri);
1186 * Get the identifier URI for the remote entity described
1187 * by this ActivityObject. This URI is *not* guaranteed to be
1188 * a resolvable HTTP/HTTPS URL.
1190 * @param ActivityObject $object
1192 * @throws ServerException if feed info invalid
1194 protected static function getActivityObjectProfileURI($object)
1197 if (ActivityUtils::validateUri($object->id)) {
1202 // If the id is missing or invalid (we've seen feeds mistakenly listing
1203 // things like local usernames in that field) then we'll use the profile
1204 // page link, if valid.
1205 if ($object->link && common_valid_http_url($object->link)) {
1206 return $object->link;
1208 throw new ServerException("No author ID URI found");
1212 * @fixme validate stuff somewhere
1216 * Create local ostatus_profile and profile/user_group entries for
1217 * the provided remote user or group.
1218 * This should never return null -- you will either get an object or
1219 * an exception will be thrown.
1221 * @param ActivityObject $object
1222 * @param array $hints
1224 * @return Ostatus_profile
1226 protected static function createActivityObjectProfile($object, $hints=array())
1228 $homeuri = $object->id;
1232 common_log(LOG_DEBUG, __METHOD__ . " empty actor profile URI: " . var_export($activity, true));
1233 throw new Exception("No profile URI");
1236 $user = User::staticGet('uri', $homeuri);
1238 throw new Exception("Local user can't be referenced as remote.");
1241 if (OStatusPlugin::localGroupFromUrl($homeuri)) {
1242 throw new Exception("Local group can't be referenced as remote.");
1245 if (array_key_exists('feedurl', $hints)) {
1246 $feeduri = $hints['feedurl'];
1248 $discover = new FeedDiscovery();
1249 $feeduri = $discover->discoverFromURL($homeuri);
1252 if (array_key_exists('salmon', $hints)) {
1253 $salmonuri = $hints['salmon'];
1256 $discover = new FeedDiscovery();
1257 $discover->discoverFromFeedURL($hints['feedurl']);
1259 $salmonuri = $discover->getAtomLink(Salmon::NS_REPLIES);
1262 if (array_key_exists('hub', $hints)) {
1263 $huburi = $hints['hub'];
1266 $discover = new FeedDiscovery();
1267 $discover->discoverFromFeedURL($hints['feedurl']);
1269 $huburi = $discover->getAtomLink('hub');
1273 // We can only deal with folks with a PuSH hub
1274 throw new FeedSubNoHubException();
1277 $oprofile = new Ostatus_profile();
1279 $oprofile->uri = $homeuri;
1280 $oprofile->feeduri = $feeduri;
1281 $oprofile->salmonuri = $salmonuri;
1283 $oprofile->created = common_sql_now();
1284 $oprofile->modified = common_sql_now();
1286 if ($object->type == ActivityObject::PERSON) {
1287 $profile = new Profile();
1288 $profile->created = common_sql_now();
1289 self::updateProfile($profile, $object, $hints);
1291 $oprofile->profile_id = $profile->insert();
1292 if (!$oprofile->profile_id) {
1293 throw new ServerException("Can't save local profile");
1296 $group = new User_group();
1297 $group->uri = $homeuri;
1298 $group->created = common_sql_now();
1299 self::updateGroup($group, $object, $hints);
1301 $oprofile->group_id = $group->insert();
1302 if (!$oprofile->group_id) {
1303 throw new ServerException("Can't save local profile");
1307 $ok = $oprofile->insert();
1310 $avatar = self::getActivityObjectAvatar($object, $hints);
1312 $oprofile->updateAvatar($avatar);
1316 throw new ServerException("Can't save OStatus profile");
1321 * Save any updated profile information to our local copy.
1322 * @param ActivityObject $object
1323 * @param array $hints
1325 public function updateFromActivityObject($object, $hints=array())
1327 if ($this->isGroup()) {
1328 $group = $this->localGroup();
1329 self::updateGroup($group, $object, $hints);
1331 $profile = $this->localProfile();
1332 self::updateProfile($profile, $object, $hints);
1334 $avatar = self::getActivityObjectAvatar($object, $hints);
1336 $this->updateAvatar($avatar);
1340 protected static function updateProfile($profile, $object, $hints=array())
1342 $orig = clone($profile);
1344 $profile->nickname = self::getActivityObjectNickname($object, $hints);
1346 if (!empty($object->title)) {
1347 $profile->fullname = $object->title;
1348 } else if (array_key_exists('fullname', $hints)) {
1349 $profile->fullname = $hints['fullname'];
1352 if (!empty($object->link)) {
1353 $profile->profileurl = $object->link;
1354 } else if (array_key_exists('profileurl', $hints)) {
1355 $profile->profileurl = $hints['profileurl'];
1356 } else if (Validate::uri($object->id, array('allowed_schemes' => array('http', 'https')))) {
1357 $profile->profileurl = $object->id;
1360 $profile->bio = self::getActivityObjectBio($object, $hints);
1361 $profile->location = self::getActivityObjectLocation($object, $hints);
1362 $profile->homepage = self::getActivityObjectHomepage($object, $hints);
1364 if (!empty($object->geopoint)) {
1365 $location = ActivityContext::locationFromPoint($object->geopoint);
1366 if (!empty($location)) {
1367 $profile->lat = $location->lat;
1368 $profile->lon = $location->lon;
1372 // @fixme tags/categories
1373 // @todo tags from categories
1376 common_log(LOG_DEBUG, "Updating OStatus profile $profile->id from remote info $object->id: " . var_export($object, true) . var_export($hints, true));
1377 $profile->update($orig);
1381 protected static function updateGroup($group, $object, $hints=array())
1383 $orig = clone($group);
1385 $group->nickname = self::getActivityObjectNickname($object, $hints);
1386 $group->fullname = $object->title;
1388 if (!empty($object->link)) {
1389 $group->mainpage = $object->link;
1390 } else if (array_key_exists('profileurl', $hints)) {
1391 $group->mainpage = $hints['profileurl'];
1394 // @todo tags from categories
1395 $group->description = self::getActivityObjectBio($object, $hints);
1396 $group->location = self::getActivityObjectLocation($object, $hints);
1397 $group->homepage = self::getActivityObjectHomepage($object, $hints);
1400 common_log(LOG_DEBUG, "Updating OStatus group $group->id from remote info $object->id: " . var_export($object, true) . var_export($hints, true));
1401 $group->update($orig);
1405 protected static function getActivityObjectHomepage($object, $hints=array())
1408 $poco = $object->poco;
1410 if (!empty($poco)) {
1411 $url = $poco->getPrimaryURL();
1412 if ($url && $url->type == 'homepage') {
1413 $homepage = $url->value;
1417 // @todo Try for a another PoCo URL?
1422 protected static function getActivityObjectLocation($object, $hints=array())
1426 if (!empty($object->poco) &&
1427 isset($object->poco->address->formatted)) {
1428 $location = $object->poco->address->formatted;
1429 } else if (array_key_exists('location', $hints)) {
1430 $location = $hints['location'];
1433 if (!empty($location)) {
1434 if (mb_strlen($location) > 255) {
1435 $location = mb_substr($note, 0, 255 - 3) . ' … ';
1439 // @todo Try to find location some othe way? Via goerss point?
1444 protected static function getActivityObjectBio($object, $hints=array())
1448 if (!empty($object->poco)) {
1449 $note = $object->poco->note;
1450 } else if (array_key_exists('bio', $hints)) {
1451 $note = $hints['bio'];
1454 if (!empty($note)) {
1455 if (Profile::bioTooLong($note)) {
1456 // XXX: truncate ok?
1457 $bio = mb_substr($note, 0, Profile::maxBio() - 3) . ' … ';
1463 // @todo Try to get bio info some other way?
1468 protected static function getActivityObjectNickname($object, $hints=array())
1470 if ($object->poco) {
1471 if (!empty($object->poco->preferredUsername)) {
1472 return common_nicknamize($object->poco->preferredUsername);
1476 if (!empty($object->nickname)) {
1477 return common_nicknamize($object->nickname);
1480 if (array_key_exists('nickname', $hints)) {
1481 return $hints['nickname'];
1484 // Try the profile url (like foo.example.com or example.com/user/foo)
1486 $profileUrl = ($object->link) ? $object->link : $hints['profileurl'];
1488 if (!empty($profileUrl)) {
1489 $nickname = self::nicknameFromURI($profileUrl);
1492 // Try the URI (may be a tag:, http:, acct:, ...
1494 if (empty($nickname)) {
1495 $nickname = self::nicknameFromURI($object->id);
1498 // Try a Webfinger if one was passed (way) down
1500 if (empty($nickname)) {
1501 if (array_key_exists('webfinger', $hints)) {
1502 $nickname = self::nicknameFromURI($hints['webfinger']);
1508 if (empty($nickname)) {
1509 $nickname = common_nicknamize($object->title);
1515 protected static function nicknameFromURI($uri)
1517 preg_match('/(\w+):/', $uri, $matches);
1519 $protocol = $matches[1];
1521 switch ($protocol) {
1524 if (preg_match("/^$protocol:(.*)?@.*\$/", $uri, $matches)) {
1525 return common_canonical_nickname($matches[1]);
1529 return common_url_to_nickname($uri);
1537 * Look up, and if necessary create, an Ostatus_profile for the remote
1538 * entity with the given webfinger address.
1539 * This should never return null -- you will either get an object or
1540 * an exception will be thrown.
1542 * @param string $addr webfinger address
1543 * @return Ostatus_profile
1544 * @throws Exception on error conditions
1546 public static function ensureWebfinger($addr)
1548 // First, try the cache
1550 $uri = self::cacheGet(sprintf('ostatus_profile:webfinger:%s', $addr));
1552 if ($uri !== false) {
1553 if (is_null($uri)) {
1554 // Negative cache entry
1555 throw new Exception('Not a valid webfinger address.');
1557 $oprofile = Ostatus_profile::staticGet('uri', $uri);
1558 if (!empty($oprofile)) {
1563 // Try looking it up
1565 $oprofile = Ostatus_profile::staticGet('uri', 'acct:'.$addr);
1567 if (!empty($oprofile)) {
1568 self::cacheSet(sprintf('ostatus_profile:webfinger:%s', $addr), $oprofile->uri);
1572 // Now, try some discovery
1574 $disco = new Discovery();
1577 $xrd = $disco->lookup($addr);
1578 } catch (Exception $e) {
1579 // Save negative cache entry so we don't waste time looking it up again.
1580 // @fixme distinguish temporary failures?
1581 self::cacheSet(sprintf('ostatus_profile:webfinger:%s', $addr), null);
1582 throw new Exception('Not a valid webfinger address.');
1585 $hints = array('webfinger' => $addr);
1587 $dhints = DiscoveryHints::fromXRD($xrd);
1589 $hints = array_merge($hints, $dhints);
1591 // If there's an Hcard, let's grab its info
1593 if (array_key_exists('hcard', $hints)) {
1594 if (!array_key_exists('profileurl', $hints) ||
1595 $hints['hcard'] != $hints['profileurl']) {
1596 $hcardHints = DiscoveryHints::fromHcardUrl($hints['hcard']);
1597 $hints = array_merge($hcardHints, $hints);
1601 // If we got a feed URL, try that
1603 if (array_key_exists('feedurl', $hints)) {
1605 common_log(LOG_INFO, "Discovery on acct:$addr with feed URL " . $hints['feedurl']);
1606 $oprofile = self::ensureFeedURL($hints['feedurl'], $hints);
1607 self::cacheSet(sprintf('ostatus_profile:webfinger:%s', $addr), $oprofile->uri);
1609 } catch (Exception $e) {
1610 common_log(LOG_WARNING, "Failed creating profile from feed URL '$feedUrl': " . $e->getMessage());
1615 // If we got a profile page, try that!
1617 if (array_key_exists('profileurl', $hints)) {
1619 common_log(LOG_INFO, "Discovery on acct:$addr with profile URL $profileUrl");
1620 $oprofile = self::ensureProfileURL($hints['profileurl'], $hints);
1621 self::cacheSet(sprintf('ostatus_profile:webfinger:%s', $addr), $oprofile->uri);
1623 } catch (Exception $e) {
1624 common_log(LOG_WARNING, "Failed creating profile from profile URL '$profileUrl': " . $e->getMessage());
1632 if (array_key_exists('salmon', $hints)) {
1634 $salmonEndpoint = $hints['salmon'];
1636 // An account URL, a salmon endpoint, and a dream? Not much to go
1637 // on, but let's give it a try
1639 $uri = 'acct:'.$addr;
1641 $profile = new Profile();
1643 $profile->nickname = self::nicknameFromUri($uri);
1644 $profile->created = common_sql_now();
1646 if (isset($profileUrl)) {
1647 $profile->profileurl = $profileUrl;
1650 $profile_id = $profile->insert();
1653 common_log_db_error($profile, 'INSERT', __FILE__);
1654 throw new Exception("Couldn't save profile for '$addr'");
1657 $oprofile = new Ostatus_profile();
1659 $oprofile->uri = $uri;
1660 $oprofile->salmonuri = $salmonEndpoint;
1661 $oprofile->profile_id = $profile_id;
1662 $oprofile->created = common_sql_now();
1664 if (isset($feedUrl)) {
1665 $profile->feeduri = $feedUrl;
1668 $result = $oprofile->insert();
1671 common_log_db_error($oprofile, 'INSERT', __FILE__);
1672 throw new Exception("Couldn't save ostatus_profile for '$addr'");
1675 self::cacheSet(sprintf('ostatus_profile:webfinger:%s', $addr), $oprofile->uri);
1679 throw new Exception("Couldn't find a valid profile for '$addr'");
1682 function saveHTMLFile($title, $rendered)
1684 $final = sprintf("<!DOCTYPE html>\n<html><head><title>%s</title></head>".
1685 '<body><div>%s</div></body></html>',
1686 htmlspecialchars($title),
1689 $filename = File::filename($this->localProfile(),
1690 'ostatus', // ignored?
1693 $filepath = File::path($filename);
1695 file_put_contents($filepath, $final);
1699 $file->filename = $filename;
1700 $file->url = File::url($filename);
1701 $file->size = filesize($filepath);
1702 $file->date = time();
1703 $file->mimetype = 'text/html';
1705 $file_id = $file->insert();
1707 if ($file_id === false) {
1708 common_log_db_error($file, "INSERT", __FILE__);
1709 throw new ServerException(_('Could not store HTML content of long post as file.'));