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 $url = common_shorten_url($sourceUrl);
554 $shortSummary = substr($shortSummary,
556 Notice::maxContent() - (mb_strlen($url) + 2));
557 $content = $shortSummary . ' ' . $url;
559 // We mark up the attachment link specially for the HTML output
560 // so we can fold-out the full version inline.
561 $attachUrl = common_local_url('attachment',
562 array('attachment' => $attachment->id));
563 $rendered = common_render_text($shortSummary) .
564 '<a href="' . htmlspecialchars($attachUrl) .'"'.
565 ' class="attachment more"' .
566 ' title="'. htmlspecialchars(_m('Show more')) . '">' .
572 $options = array('is_local' => Notice::REMOTE_OMB,
575 'rendered' => $rendered,
576 'replies' => array(),
581 // Check for optional attributes...
583 if (!empty($activity->time)) {
584 $options['created'] = common_sql_date($activity->time);
587 if ($activity->context) {
588 // Any individual or group attn: targets?
589 $replies = $activity->context->attention;
590 $options['groups'] = $this->filterReplies($oprofile, $replies);
591 $options['replies'] = $replies;
593 // Maintain direct reply associations
594 // @fixme what about conversation ID?
595 if (!empty($activity->context->replyToID)) {
596 $orig = Notice::staticGet('uri',
597 $activity->context->replyToID);
599 $options['reply_to'] = $orig->id;
603 $location = $activity->context->location;
605 $options['lat'] = $location->lat;
606 $options['lon'] = $location->lon;
607 if ($location->location_id) {
608 $options['location_ns'] = $location->location_ns;
609 $options['location_id'] = $location->location_id;
614 // Atom categories <-> hashtags
615 foreach ($activity->categories as $cat) {
617 $term = common_canonical_tag($cat->term);
619 $options['tags'][] = $term;
624 // Atom enclosures -> attachment URLs
625 foreach ($activity->enclosures as $href) {
626 // @fixme save these locally or....?
627 $options['urls'][] = $href;
631 $saved = Notice::saveNew($oprofile->profile_id,
636 Ostatus_source::saveNew($saved, $this, $method);
637 if (!empty($attachment)) {
638 File_to_post::processNew($attachment->id, $saved->id);
641 } catch (Exception $e) {
642 common_log(LOG_ERR, "OStatus save of remote message $sourceUri failed: " . $e->getMessage());
645 common_log(LOG_INFO, "OStatus saved remote message $sourceUri as notice id $saved->id");
652 protected function purify($html)
654 require_once INSTALLDIR.'/extlib/htmLawed/htmLawed.php';
655 $config = array('safe' => 1,
656 'deny_attribute' => 'id,style,on*');
657 return htmLawed($html, $config);
661 * Filters a list of recipient ID URIs to just those for local delivery.
662 * @param Ostatus_profile local profile of sender
663 * @param array in/out &$attention_uris set of URIs, will be pruned on output
664 * @return array of group IDs
666 protected function filterReplies($sender, &$attention_uris)
668 common_log(LOG_DEBUG, "Original reply recipients: " . implode(', ', $attention_uris));
671 foreach ($attention_uris as $recipient) {
672 // Is the recipient a local user?
673 $user = User::staticGet('uri', $recipient);
675 // @fixme sender verification, spam etc?
676 $replies[] = $recipient;
680 // Is the recipient a remote group?
681 $oprofile = Ostatus_profile::staticGet('uri', $recipient);
683 if ($oprofile->isGroup()) {
684 // Deliver to local members of this remote group.
685 // @fixme sender verification?
686 $groups[] = $oprofile->group_id;
688 common_log(LOG_DEBUG, "Skipping reply to remote profile $recipient");
693 // Is the recipient a local group?
694 // @fixme uri on user_group isn't reliable yet
695 // $group = User_group::staticGet('uri', $recipient);
696 $id = OStatusPlugin::localGroupFromUrl($recipient);
698 $group = User_group::staticGet('id', $id);
700 // Deliver to all members of this local group if allowed.
701 $profile = $sender->localProfile();
702 if ($profile->isMember($group)) {
703 $groups[] = $group->id;
705 common_log(LOG_DEBUG, "Skipping reply to local group $group->nickname as sender $profile->id is not a member");
709 common_log(LOG_DEBUG, "Skipping reply to bogus group $recipient");
713 common_log(LOG_DEBUG, "Skipping reply to unrecognized profile $recipient");
716 $attention_uris = $replies;
717 common_log(LOG_DEBUG, "Local reply recipients: " . implode(', ', $replies));
718 common_log(LOG_DEBUG, "Local group recipients: " . implode(', ', $groups));
723 * Look up and if necessary create an Ostatus_profile for the remote entity
724 * with the given profile page URL. This should never return null -- you
725 * will either get an object or an exception will be thrown.
727 * @param string $profile_url
728 * @return Ostatus_profile
729 * @throws Exception on various error conditions
730 * @throws OStatusShadowException if this reference would obscure a local user/group
733 public static function ensureProfileURL($profile_url, $hints=array())
735 $oprofile = self::getFromProfileURL($profile_url);
737 if (!empty($oprofile)) {
741 $hints['profileurl'] = $profile_url;
746 $client = new HTTPClient();
747 $client->setHeader('Accept', 'text/html,application/xhtml+xml');
748 $response = $client->get($profile_url);
750 if (!$response->isOk()) {
751 throw new Exception("Could not reach profile page: " . $profile_url);
754 // Check if we have a non-canonical URL
756 $finalUrl = $response->getUrl();
758 if ($finalUrl != $profile_url) {
760 $hints['profileurl'] = $finalUrl;
762 $oprofile = self::getFromProfileURL($finalUrl);
764 if (!empty($oprofile)) {
769 // Try to get some hCard data
771 $body = $response->getBody();
773 $hcardHints = DiscoveryHints::hcardHints($body, $finalUrl);
775 if (!empty($hcardHints)) {
776 $hints = array_merge($hints, $hcardHints);
779 // Check if they've got an LRDD header
781 $lrdd = LinkHeader::getLink($response, 'lrdd', 'application/xrd+xml');
785 $xrd = Discovery::fetchXrd($lrdd);
786 $xrdHints = DiscoveryHints::fromXRD($xrd);
788 $hints = array_merge($hints, $xrdHints);
791 // If discovery found a feedurl (probably from LRDD), use it.
793 if (array_key_exists('feedurl', $hints)) {
794 return self::ensureFeedURL($hints['feedurl'], $hints);
797 // Get the feed URL from HTML
799 $discover = new FeedDiscovery();
801 $feedurl = $discover->discoverFromHTML($finalUrl, $body);
803 if (!empty($feedurl)) {
804 $hints['feedurl'] = $feedurl;
805 return self::ensureFeedURL($feedurl, $hints);
808 throw new Exception("Could not find a feed URL for profile page " . $finalUrl);
812 * Look up the Ostatus_profile, if present, for a remote entity with the
813 * given profile page URL. Will return null for both unknown and invalid
816 * @return mixed Ostatus_profile or null
817 * @throws OStatusShadowException for local profiles
819 static function getFromProfileURL($profile_url)
821 $profile = Profile::staticGet('profileurl', $profile_url);
823 if (empty($profile)) {
827 // Is it a known Ostatus profile?
829 $oprofile = Ostatus_profile::staticGet('profile_id', $profile->id);
831 if (!empty($oprofile)) {
835 // Is it a local user?
837 $user = User::staticGet('id', $profile->id);
840 throw new OStatusShadowException($profile, "'$profile_url' is the profile for local user '{$user->nickname}'.");
843 // Continue discovery; it's a remote profile
844 // for OMB or some other protocol, may also
851 * Look up and if necessary create an Ostatus_profile for remote entity
852 * with the given update feed. This should never return null -- you will
853 * either get an object or an exception will be thrown.
855 * @return Ostatus_profile
858 public static function ensureFeedURL($feed_url, $hints=array())
860 $discover = new FeedDiscovery();
862 $feeduri = $discover->discoverFromFeedURL($feed_url);
863 $hints['feedurl'] = $feeduri;
865 $huburi = $discover->getAtomLink('hub');
866 $hints['hub'] = $huburi;
867 $salmonuri = $discover->getAtomLink(Salmon::NS_REPLIES);
868 $hints['salmon'] = $salmonuri;
871 // We can only deal with folks with a PuSH hub
872 throw new FeedSubNoHubException();
875 $feedEl = $discover->root;
877 if ($feedEl->tagName == 'feed') {
878 return self::ensureAtomFeed($feedEl, $hints);
879 } else if ($feedEl->tagName == 'channel') {
880 return self::ensureRssChannel($feedEl, $hints);
882 throw new FeedSubBadXmlException($feeduri);
887 * Look up and, if necessary, create an Ostatus_profile for the remote
888 * profile with the given Atom feed - actually loaded from the feed.
889 * This should never return null -- you will either get an object or
890 * an exception will be thrown.
892 * @param DOMElement $feedEl root element of a loaded Atom feed
893 * @param array $hints additional discovery information passed from higher levels
894 * @fixme should this be marked public?
895 * @return Ostatus_profile
898 public static function ensureAtomFeed($feedEl, $hints)
900 // Try to get a profile from the feed activity:subject
902 $subject = ActivityUtils::child($feedEl, Activity::SUBJECT, Activity::SPEC);
904 if (!empty($subject)) {
905 $subjObject = new ActivityObject($subject);
906 return self::ensureActivityObjectProfile($subjObject, $hints);
909 // Otherwise, try the feed author
911 $author = ActivityUtils::child($feedEl, Activity::AUTHOR, Activity::ATOM);
913 if (!empty($author)) {
914 $authorObject = new ActivityObject($author);
915 return self::ensureActivityObjectProfile($authorObject, $hints);
918 // Sheesh. Not a very nice feed! Let's try fingerpoken in the
921 $entries = $feedEl->getElementsByTagNameNS(Activity::ATOM, 'entry');
923 if (!empty($entries) && $entries->length > 0) {
925 $entry = $entries->item(0);
927 $actor = ActivityUtils::child($entry, Activity::ACTOR, Activity::SPEC);
929 if (!empty($actor)) {
930 $actorObject = new ActivityObject($actor);
931 return self::ensureActivityObjectProfile($actorObject, $hints);
935 $author = ActivityUtils::child($entry, Activity::AUTHOR, Activity::ATOM);
937 if (!empty($author)) {
938 $authorObject = new ActivityObject($author);
939 return self::ensureActivityObjectProfile($authorObject, $hints);
943 // XXX: make some educated guesses here
945 throw new FeedSubException("Can't find enough profile information to make a feed.");
949 * Look up and, if necessary, create an Ostatus_profile for the remote
950 * profile with the given RSS feed - actually loaded from the feed.
951 * This should never return null -- you will either get an object or
952 * an exception will be thrown.
954 * @param DOMElement $feedEl root element of a loaded RSS feed
955 * @param array $hints additional discovery information passed from higher levels
956 * @fixme should this be marked public?
957 * @return Ostatus_profile
960 public static function ensureRssChannel($feedEl, $hints)
962 // Special-case for Posterous. They have some nice metadata in their
963 // posterous:author elements. We should use them instead of the channel.
965 $items = $feedEl->getElementsByTagName('item');
967 if ($items->length > 0) {
968 $item = $items->item(0);
969 $authorEl = ActivityUtils::child($item, ActivityObject::AUTHOR, ActivityObject::POSTEROUS);
970 if (!empty($authorEl)) {
971 $obj = ActivityObject::fromPosterousAuthor($authorEl);
972 // Posterous has multiple authors per feed, and multiple feeds
973 // per author. We check if this is the "main" feed for this author.
974 if (array_key_exists('profileurl', $hints) &&
975 !empty($obj->poco) &&
976 common_url_to_nickname($hints['profileurl']) == $obj->poco->preferredUsername) {
977 return self::ensureActivityObjectProfile($obj, $hints);
982 // @fixme we should check whether this feed has elements
983 // with different <author> or <dc:creator> elements, and... I dunno.
984 // Do something about that.
986 $obj = ActivityObject::fromRssChannel($feedEl);
988 return self::ensureActivityObjectProfile($obj, $hints);
992 * Download and update given avatar image
995 * @throws Exception in various failure cases
997 protected function updateAvatar($url)
999 if ($url == $this->avatar) {
1000 // We've already got this one.
1003 if (!common_valid_http_url($url)) {
1004 throw new ServerException(_m("Invalid avatar URL %s"), $url);
1007 if ($this->isGroup()) {
1008 $self = $this->localGroup();
1010 $self = $this->localProfile();
1013 throw new ServerException(sprintf(
1014 _m("Tried to update avatar for unsaved remote profile %s"),
1018 // @fixme this should be better encapsulated
1019 // ripped from oauthstore.php (for old OMB client)
1020 $temp_filename = tempnam(sys_get_temp_dir(), 'listener_avatar');
1021 if (!copy($url, $temp_filename)) {
1022 throw new ServerException(sprintf(_m("Unable to fetch avatar from %s"), $url));
1025 if ($this->isGroup()) {
1026 $id = $this->group_id;
1028 $id = $this->profile_id;
1030 // @fixme should we be using different ids?
1031 $imagefile = new ImageFile($id, $temp_filename);
1032 $filename = Avatar::filename($id,
1033 image_type_to_extension($imagefile->type),
1035 common_timestamp());
1036 rename($temp_filename, Avatar::path($filename));
1037 $self->setOriginal($filename);
1039 $orig = clone($this);
1040 $this->avatar = $url;
1041 $this->update($orig);
1045 * Pull avatar URL from ActivityObject or profile hints
1047 * @param ActivityObject $object
1048 * @param array $hints
1049 * @return mixed URL string or false
1052 protected static function getActivityObjectAvatar($object, $hints=array())
1054 if ($object->avatarLinks) {
1056 // Take the exact-size avatar, or the largest avatar, or the first avatar if all sizeless
1057 foreach ($object->avatarLinks as $avatar) {
1058 if ($avatar->width == AVATAR_PROFILE_SIZE && $avatar->height = AVATAR_PROFILE_SIZE) {
1063 if (!$best || $avatar->width > $best->width) {
1068 } else if (array_key_exists('avatar', $hints)) {
1069 return $hints['avatar'];
1075 * Get an appropriate avatar image source URL, if available.
1077 * @param ActivityObject $actor
1078 * @param DOMElement $feed
1082 protected static function getAvatar($actor, $feed)
1086 if ($actor->avatar) {
1087 $url = trim($actor->avatar);
1090 // Check <atom:logo> and <atom:icon> on the feed
1091 $els = $feed->childNodes();
1092 if ($els && $els->length) {
1093 for ($i = 0; $i < $els->length; $i++) {
1094 $el = $els->item($i);
1095 if ($el->namespaceURI == Activity::ATOM) {
1096 if (empty($url) && $el->localName == 'logo') {
1097 $url = trim($el->textContent);
1100 if (empty($icon) && $el->localName == 'icon') {
1101 // Use as a fallback
1102 $icon = trim($el->textContent);
1107 if ($icon && !$url) {
1112 $opts = array('allowed_schemes' => array('http', 'https'));
1113 if (Validate::uri($url, $opts)) {
1117 return common_path('plugins/OStatus/images/96px-Feed-icon.svg.png');
1121 * Fetch, or build if necessary, an Ostatus_profile for the actor
1122 * in a given Activity Streams activity.
1123 * This should never return null -- you will either get an object or
1124 * an exception will be thrown.
1126 * @param Activity $activity
1127 * @param string $feeduri if we already know the canonical feed URI!
1128 * @param string $salmonuri if we already know the salmon return channel URI
1129 * @return Ostatus_profile
1133 public static function ensureActorProfile($activity, $hints=array())
1135 return self::ensureActivityObjectProfile($activity->actor, $hints);
1139 * Fetch, or build if necessary, an Ostatus_profile for the profile
1140 * in a given Activity Streams object (can be subject, actor, or object).
1141 * This should never return null -- you will either get an object or
1142 * an exception will be thrown.
1144 * @param ActivityObject $object
1145 * @param array $hints additional discovery information passed from higher levels
1146 * @return Ostatus_profile
1150 public static function ensureActivityObjectProfile($object, $hints=array())
1152 $profile = self::getActivityObjectProfile($object);
1154 $profile->updateFromActivityObject($object, $hints);
1156 $profile = self::createActivityObjectProfile($object, $hints);
1162 * @param Activity $activity
1163 * @return mixed matching Ostatus_profile or false if none known
1164 * @throws ServerException if feed info invalid
1166 public static function getActorProfile($activity)
1168 return self::getActivityObjectProfile($activity->actor);
1172 * @param ActivityObject $activity
1173 * @return mixed matching Ostatus_profile or false if none known
1174 * @throws ServerException if feed info invalid
1176 protected static function getActivityObjectProfile($object)
1178 $uri = self::getActivityObjectProfileURI($object);
1179 return Ostatus_profile::staticGet('uri', $uri);
1183 * Get the identifier URI for the remote entity described
1184 * by this ActivityObject. This URI is *not* guaranteed to be
1185 * a resolvable HTTP/HTTPS URL.
1187 * @param ActivityObject $object
1189 * @throws ServerException if feed info invalid
1191 protected static function getActivityObjectProfileURI($object)
1194 if (ActivityUtils::validateUri($object->id)) {
1199 // If the id is missing or invalid (we've seen feeds mistakenly listing
1200 // things like local usernames in that field) then we'll use the profile
1201 // page link, if valid.
1202 if ($object->link && common_valid_http_url($object->link)) {
1203 return $object->link;
1205 throw new ServerException("No author ID URI found");
1209 * @fixme validate stuff somewhere
1213 * Create local ostatus_profile and profile/user_group entries for
1214 * the provided remote user or group.
1215 * This should never return null -- you will either get an object or
1216 * an exception will be thrown.
1218 * @param ActivityObject $object
1219 * @param array $hints
1221 * @return Ostatus_profile
1223 protected static function createActivityObjectProfile($object, $hints=array())
1225 $homeuri = $object->id;
1229 common_log(LOG_DEBUG, __METHOD__ . " empty actor profile URI: " . var_export($activity, true));
1230 throw new Exception("No profile URI");
1233 $user = User::staticGet('uri', $homeuri);
1235 throw new Exception("Local user can't be referenced as remote.");
1238 if (OStatusPlugin::localGroupFromUrl($homeuri)) {
1239 throw new Exception("Local group can't be referenced as remote.");
1242 if (array_key_exists('feedurl', $hints)) {
1243 $feeduri = $hints['feedurl'];
1245 $discover = new FeedDiscovery();
1246 $feeduri = $discover->discoverFromURL($homeuri);
1249 if (array_key_exists('salmon', $hints)) {
1250 $salmonuri = $hints['salmon'];
1253 $discover = new FeedDiscovery();
1254 $discover->discoverFromFeedURL($hints['feedurl']);
1256 $salmonuri = $discover->getAtomLink(Salmon::NS_REPLIES);
1259 if (array_key_exists('hub', $hints)) {
1260 $huburi = $hints['hub'];
1263 $discover = new FeedDiscovery();
1264 $discover->discoverFromFeedURL($hints['feedurl']);
1266 $huburi = $discover->getAtomLink('hub');
1270 // We can only deal with folks with a PuSH hub
1271 throw new FeedSubNoHubException();
1274 $oprofile = new Ostatus_profile();
1276 $oprofile->uri = $homeuri;
1277 $oprofile->feeduri = $feeduri;
1278 $oprofile->salmonuri = $salmonuri;
1280 $oprofile->created = common_sql_now();
1281 $oprofile->modified = common_sql_now();
1283 if ($object->type == ActivityObject::PERSON) {
1284 $profile = new Profile();
1285 $profile->created = common_sql_now();
1286 self::updateProfile($profile, $object, $hints);
1288 $oprofile->profile_id = $profile->insert();
1289 if (!$oprofile->profile_id) {
1290 throw new ServerException("Can't save local profile");
1293 $group = new User_group();
1294 $group->uri = $homeuri;
1295 $group->created = common_sql_now();
1296 self::updateGroup($group, $object, $hints);
1298 $oprofile->group_id = $group->insert();
1299 if (!$oprofile->group_id) {
1300 throw new ServerException("Can't save local profile");
1304 $ok = $oprofile->insert();
1307 $avatar = self::getActivityObjectAvatar($object, $hints);
1309 $oprofile->updateAvatar($avatar);
1313 throw new ServerException("Can't save OStatus profile");
1318 * Save any updated profile information to our local copy.
1319 * @param ActivityObject $object
1320 * @param array $hints
1322 public function updateFromActivityObject($object, $hints=array())
1324 if ($this->isGroup()) {
1325 $group = $this->localGroup();
1326 self::updateGroup($group, $object, $hints);
1328 $profile = $this->localProfile();
1329 self::updateProfile($profile, $object, $hints);
1331 $avatar = self::getActivityObjectAvatar($object, $hints);
1333 $this->updateAvatar($avatar);
1337 protected static function updateProfile($profile, $object, $hints=array())
1339 $orig = clone($profile);
1341 $profile->nickname = self::getActivityObjectNickname($object, $hints);
1343 if (!empty($object->title)) {
1344 $profile->fullname = $object->title;
1345 } else if (array_key_exists('fullname', $hints)) {
1346 $profile->fullname = $hints['fullname'];
1349 if (!empty($object->link)) {
1350 $profile->profileurl = $object->link;
1351 } else if (array_key_exists('profileurl', $hints)) {
1352 $profile->profileurl = $hints['profileurl'];
1353 } else if (Validate::uri($object->id, array('allowed_schemes' => array('http', 'https')))) {
1354 $profile->profileurl = $object->id;
1357 $profile->bio = self::getActivityObjectBio($object, $hints);
1358 $profile->location = self::getActivityObjectLocation($object, $hints);
1359 $profile->homepage = self::getActivityObjectHomepage($object, $hints);
1361 if (!empty($object->geopoint)) {
1362 $location = ActivityContext::locationFromPoint($object->geopoint);
1363 if (!empty($location)) {
1364 $profile->lat = $location->lat;
1365 $profile->lon = $location->lon;
1369 // @fixme tags/categories
1370 // @todo tags from categories
1373 common_log(LOG_DEBUG, "Updating OStatus profile $profile->id from remote info $object->id: " . var_export($object, true) . var_export($hints, true));
1374 $profile->update($orig);
1378 protected static function updateGroup($group, $object, $hints=array())
1380 $orig = clone($group);
1382 $group->nickname = self::getActivityObjectNickname($object, $hints);
1383 $group->fullname = $object->title;
1385 if (!empty($object->link)) {
1386 $group->mainpage = $object->link;
1387 } else if (array_key_exists('profileurl', $hints)) {
1388 $group->mainpage = $hints['profileurl'];
1391 // @todo tags from categories
1392 $group->description = self::getActivityObjectBio($object, $hints);
1393 $group->location = self::getActivityObjectLocation($object, $hints);
1394 $group->homepage = self::getActivityObjectHomepage($object, $hints);
1397 common_log(LOG_DEBUG, "Updating OStatus group $group->id from remote info $object->id: " . var_export($object, true) . var_export($hints, true));
1398 $group->update($orig);
1402 protected static function getActivityObjectHomepage($object, $hints=array())
1405 $poco = $object->poco;
1407 if (!empty($poco)) {
1408 $url = $poco->getPrimaryURL();
1409 if ($url && $url->type == 'homepage') {
1410 $homepage = $url->value;
1414 // @todo Try for a another PoCo URL?
1419 protected static function getActivityObjectLocation($object, $hints=array())
1423 if (!empty($object->poco) &&
1424 isset($object->poco->address->formatted)) {
1425 $location = $object->poco->address->formatted;
1426 } else if (array_key_exists('location', $hints)) {
1427 $location = $hints['location'];
1430 if (!empty($location)) {
1431 if (mb_strlen($location) > 255) {
1432 $location = mb_substr($note, 0, 255 - 3) . ' … ';
1436 // @todo Try to find location some othe way? Via goerss point?
1441 protected static function getActivityObjectBio($object, $hints=array())
1445 if (!empty($object->poco)) {
1446 $note = $object->poco->note;
1447 } else if (array_key_exists('bio', $hints)) {
1448 $note = $hints['bio'];
1451 if (!empty($note)) {
1452 if (Profile::bioTooLong($note)) {
1453 // XXX: truncate ok?
1454 $bio = mb_substr($note, 0, Profile::maxBio() - 3) . ' … ';
1460 // @todo Try to get bio info some other way?
1465 protected static function getActivityObjectNickname($object, $hints=array())
1467 if ($object->poco) {
1468 if (!empty($object->poco->preferredUsername)) {
1469 return common_nicknamize($object->poco->preferredUsername);
1473 if (!empty($object->nickname)) {
1474 return common_nicknamize($object->nickname);
1477 if (array_key_exists('nickname', $hints)) {
1478 return $hints['nickname'];
1481 // Try the profile url (like foo.example.com or example.com/user/foo)
1483 $profileUrl = ($object->link) ? $object->link : $hints['profileurl'];
1485 if (!empty($profileUrl)) {
1486 $nickname = self::nicknameFromURI($profileUrl);
1489 // Try the URI (may be a tag:, http:, acct:, ...
1491 if (empty($nickname)) {
1492 $nickname = self::nicknameFromURI($object->id);
1495 // Try a Webfinger if one was passed (way) down
1497 if (empty($nickname)) {
1498 if (array_key_exists('webfinger', $hints)) {
1499 $nickname = self::nicknameFromURI($hints['webfinger']);
1505 if (empty($nickname)) {
1506 $nickname = common_nicknamize($object->title);
1512 protected static function nicknameFromURI($uri)
1514 preg_match('/(\w+):/', $uri, $matches);
1516 $protocol = $matches[1];
1518 switch ($protocol) {
1521 if (preg_match("/^$protocol:(.*)?@.*\$/", $uri, $matches)) {
1522 return common_canonical_nickname($matches[1]);
1526 return common_url_to_nickname($uri);
1534 * Look up, and if necessary create, an Ostatus_profile for the remote
1535 * entity with the given webfinger address.
1536 * This should never return null -- you will either get an object or
1537 * an exception will be thrown.
1539 * @param string $addr webfinger address
1540 * @return Ostatus_profile
1541 * @throws Exception on error conditions
1542 * @throws OStatusShadowException if this reference would obscure a local user/group
1544 public static function ensureWebfinger($addr)
1546 // First, try the cache
1548 $uri = self::cacheGet(sprintf('ostatus_profile:webfinger:%s', $addr));
1550 if ($uri !== false) {
1551 if (is_null($uri)) {
1552 // Negative cache entry
1553 throw new Exception('Not a valid webfinger address.');
1555 $oprofile = Ostatus_profile::staticGet('uri', $uri);
1556 if (!empty($oprofile)) {
1561 // Try looking it up
1563 $oprofile = Ostatus_profile::staticGet('uri', 'acct:'.$addr);
1565 if (!empty($oprofile)) {
1566 self::cacheSet(sprintf('ostatus_profile:webfinger:%s', $addr), $oprofile->uri);
1570 // Now, try some discovery
1572 $disco = new Discovery();
1575 $xrd = $disco->lookup($addr);
1576 } catch (Exception $e) {
1577 // Save negative cache entry so we don't waste time looking it up again.
1578 // @fixme distinguish temporary failures?
1579 self::cacheSet(sprintf('ostatus_profile:webfinger:%s', $addr), null);
1580 throw new Exception('Not a valid webfinger address.');
1583 $hints = array('webfinger' => $addr);
1585 $dhints = DiscoveryHints::fromXRD($xrd);
1587 $hints = array_merge($hints, $dhints);
1589 // If there's an Hcard, let's grab its info
1591 if (array_key_exists('hcard', $hints)) {
1592 if (!array_key_exists('profileurl', $hints) ||
1593 $hints['hcard'] != $hints['profileurl']) {
1594 $hcardHints = DiscoveryHints::fromHcardUrl($hints['hcard']);
1595 $hints = array_merge($hcardHints, $hints);
1599 // If we got a feed URL, try that
1601 if (array_key_exists('feedurl', $hints)) {
1603 common_log(LOG_INFO, "Discovery on acct:$addr with feed URL " . $hints['feedurl']);
1604 $oprofile = self::ensureFeedURL($hints['feedurl'], $hints);
1605 self::cacheSet(sprintf('ostatus_profile:webfinger:%s', $addr), $oprofile->uri);
1607 } catch (Exception $e) {
1608 common_log(LOG_WARNING, "Failed creating profile from feed URL '$feedUrl': " . $e->getMessage());
1613 // If we got a profile page, try that!
1615 if (array_key_exists('profileurl', $hints)) {
1617 common_log(LOG_INFO, "Discovery on acct:$addr with profile URL $profileUrl");
1618 $oprofile = self::ensureProfileURL($hints['profileurl'], $hints);
1619 self::cacheSet(sprintf('ostatus_profile:webfinger:%s', $addr), $oprofile->uri);
1621 } catch (OStatusShadowException $e) {
1622 // We've ended up with a remote reference to a local user or group.
1623 // @fixme ideally we should be able to say who it was so we can
1624 // go back and refer to it the regular way
1626 } catch (Exception $e) {
1627 common_log(LOG_WARNING, "Failed creating profile from profile URL '$profileUrl': " . $e->getMessage());
1630 // @fixme this means an error discovering from profile page
1631 // may give us a corrupt entry using the webfinger URI, which
1632 // will obscure the correct page-keyed profile later on.
1639 if (array_key_exists('salmon', $hints)) {
1641 $salmonEndpoint = $hints['salmon'];
1643 // An account URL, a salmon endpoint, and a dream? Not much to go
1644 // on, but let's give it a try
1646 $uri = 'acct:'.$addr;
1648 $profile = new Profile();
1650 $profile->nickname = self::nicknameFromUri($uri);
1651 $profile->created = common_sql_now();
1653 if (isset($profileUrl)) {
1654 $profile->profileurl = $profileUrl;
1657 $profile_id = $profile->insert();
1660 common_log_db_error($profile, 'INSERT', __FILE__);
1661 throw new Exception("Couldn't save profile for '$addr'");
1664 $oprofile = new Ostatus_profile();
1666 $oprofile->uri = $uri;
1667 $oprofile->salmonuri = $salmonEndpoint;
1668 $oprofile->profile_id = $profile_id;
1669 $oprofile->created = common_sql_now();
1671 if (isset($feedUrl)) {
1672 $profile->feeduri = $feedUrl;
1675 $result = $oprofile->insert();
1678 common_log_db_error($oprofile, 'INSERT', __FILE__);
1679 throw new Exception("Couldn't save ostatus_profile for '$addr'");
1682 self::cacheSet(sprintf('ostatus_profile:webfinger:%s', $addr), $oprofile->uri);
1686 throw new Exception("Couldn't find a valid profile for '$addr'");
1690 * Store the full-length scrubbed HTML of a remote notice to an attachment
1691 * file on our server. We'll link to this at the end of the cropped version.
1693 * @param string $title plaintext for HTML page's title
1694 * @param string $rendered HTML fragment for HTML page's body
1697 function saveHTMLFile($title, $rendered)
1699 $final = sprintf("<!DOCTYPE html>\n" .
1701 '<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">' .
1702 '<title>%s</title>' .
1704 '<body>%s</body></html>',
1705 htmlspecialchars($title),
1708 $filename = File::filename($this->localProfile(),
1709 'ostatus', // ignored?
1712 $filepath = File::path($filename);
1714 file_put_contents($filepath, $final);
1718 $file->filename = $filename;
1719 $file->url = File::url($filename);
1720 $file->size = filesize($filepath);
1721 $file->date = time();
1722 $file->mimetype = 'text/html';
1724 $file_id = $file->insert();
1726 if ($file_id === false) {
1727 common_log_db_error($file, "INSERT", __FILE__);
1728 throw new ServerException(_('Could not store HTML content of long post as file.'));
1736 * Exception indicating we've got a remote reference to a local user,
1737 * not a remote user!
1739 * If we can ue a local profile after all, it's available as $e->profile.
1741 class OStatusShadowException extends Exception
1746 * @param Profile $profile
1747 * @param string $message
1749 function __construct($profile, $message) {
1750 $this->profile = $profile;
1751 parent::__construct($message);