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, $feed);
445 switch ($activity->object->type) {
446 case ActivityObject::ARTICLE:
447 case ActivityObject::BLOGENTRY:
448 case ActivityObject::NOTE:
449 case ActivityObject::STATUS:
450 case ActivityObject::COMMENT:
453 throw new ClientException("Can't handle that kind of post.");
456 if ($activity->verb == ActivityVerb::POST) {
457 $this->processPost($activity, $source);
459 common_log(LOG_INFO, "Ignoring activity with unrecognized verb $activity->verb");
464 * Process an incoming post activity from this remote feed.
465 * @param Activity $activity
466 * @param string $method 'push' or 'salmon'
467 * @return mixed saved Notice or false
468 * @fixme break up this function, it's getting nasty long
470 public function processPost($activity, $method)
472 if ($this->isGroup()) {
473 // A group feed will contain posts from multiple authors.
474 // @fixme validate these profiles in some way!
475 $oprofile = self::ensureActorProfile($activity);
476 if ($oprofile->isGroup()) {
477 // Groups can't post notices in StatusNet.
478 common_log(LOG_WARNING, "OStatus: skipping post with group listed as author: $oprofile->uri in feed from $this->uri");
482 $actor = $activity->actor;
485 // OK here! assume the default
486 } else if ($actor->id == $this->uri || $actor->link == $this->uri) {
487 $this->updateFromActivityObject($actor);
489 throw new Exception("Got an actor '{$actor->title}' ({$actor->id}) on single-user feed for {$this->uri}");
495 // It's not always an ActivityObject::NOTE, but... let's just say it is.
497 $note = $activity->object;
499 // The id URI will be used as a unique identifier for for the notice,
500 // protecting against duplicate saves. It isn't required to be a URL;
501 // tag: URIs for instance are found in Google Buzz feeds.
502 $sourceUri = $note->id;
503 $dupe = Notice::staticGet('uri', $sourceUri);
505 common_log(LOG_INFO, "OStatus: ignoring duplicate post: $sourceUri");
509 // We'll also want to save a web link to the original notice, if provided.
512 $sourceUrl = $note->link;
513 } else if ($activity->link) {
514 $sourceUrl = $activity->link;
515 } else if (preg_match('!^https?://!', $note->id)) {
516 $sourceUrl = $note->id;
519 // Use summary as fallback for content
521 if (!empty($note->content)) {
522 $sourceContent = $note->content;
523 } else if (!empty($note->summary)) {
524 $sourceContent = $note->summary;
525 } else if (!empty($note->title)) {
526 $sourceContent = $note->title;
528 // @fixme fetch from $sourceUrl?
529 throw new ClientException("No content for notice {$sourceUri}");
532 // Get (safe!) HTML and text versions of the content
534 $rendered = $this->purify($sourceContent);
535 $content = html_entity_decode(strip_tags($rendered));
537 $shortened = common_shorten_links($content);
539 // If it's too long, try using the summary, and make the
540 // HTML an attachment.
544 if (Notice::contentTooLong($shortened)) {
545 $attachment = $this->saveHTMLFile($note->title, $rendered);
546 $summary = html_entity_decode(strip_tags($note->summary));
547 if (empty($summary)) {
550 $shortSummary = common_shorten_links($summary);
551 if (Notice::contentTooLong($shortSummary)) {
552 $url = common_shorten_url($sourceUrl);
553 $shortSummary = substr($shortSummary,
555 Notice::maxContent() - (mb_strlen($url) + 2));
556 $content = $shortSummary . ' ' . $url;
558 // We mark up the attachment link specially for the HTML output
559 // so we can fold-out the full version inline.
560 $attachUrl = common_local_url('attachment',
561 array('attachment' => $attachment->id));
562 $rendered = common_render_text($shortSummary) .
563 '<a href="' . htmlspecialchars($attachUrl) .'"'.
564 ' class="attachment more"' .
565 ' title="'. htmlspecialchars(_m('Show more')) . '">' .
571 $options = array('is_local' => Notice::REMOTE_OMB,
574 'rendered' => $rendered,
575 'replies' => array(),
580 // Check for optional attributes...
582 if (!empty($activity->time)) {
583 $options['created'] = common_sql_date($activity->time);
586 if ($activity->context) {
587 // Any individual or group attn: targets?
588 $replies = $activity->context->attention;
589 $options['groups'] = $this->filterReplies($oprofile, $replies);
590 $options['replies'] = $replies;
592 // Maintain direct reply associations
593 // @fixme what about conversation ID?
594 if (!empty($activity->context->replyToID)) {
595 $orig = Notice::staticGet('uri',
596 $activity->context->replyToID);
598 $options['reply_to'] = $orig->id;
602 $location = $activity->context->location;
604 $options['lat'] = $location->lat;
605 $options['lon'] = $location->lon;
606 if ($location->location_id) {
607 $options['location_ns'] = $location->location_ns;
608 $options['location_id'] = $location->location_id;
613 // Atom categories <-> hashtags
614 foreach ($activity->categories as $cat) {
616 $term = common_canonical_tag($cat->term);
618 $options['tags'][] = $term;
623 // Atom enclosures -> attachment URLs
624 foreach ($activity->enclosures as $href) {
625 // @fixme save these locally or....?
626 $options['urls'][] = $href;
630 $saved = Notice::saveNew($oprofile->profile_id,
635 Ostatus_source::saveNew($saved, $this, $method);
636 if (!empty($attachment)) {
637 File_to_post::processNew($attachment->id, $saved->id);
640 } catch (Exception $e) {
641 common_log(LOG_ERR, "OStatus save of remote message $sourceUri failed: " . $e->getMessage());
644 common_log(LOG_INFO, "OStatus saved remote message $sourceUri as notice id $saved->id");
651 protected function purify($html)
653 require_once INSTALLDIR.'/extlib/htmLawed/htmLawed.php';
654 $config = array('safe' => 1,
655 'deny_attribute' => 'id,style,on*');
656 return htmLawed($html, $config);
660 * Filters a list of recipient ID URIs to just those for local delivery.
661 * @param Ostatus_profile local profile of sender
662 * @param array in/out &$attention_uris set of URIs, will be pruned on output
663 * @return array of group IDs
665 protected function filterReplies($sender, &$attention_uris)
667 common_log(LOG_DEBUG, "Original reply recipients: " . implode(', ', $attention_uris));
670 foreach ($attention_uris as $recipient) {
671 // Is the recipient a local user?
672 $user = User::staticGet('uri', $recipient);
674 // @fixme sender verification, spam etc?
675 $replies[] = $recipient;
679 // Is the recipient a remote group?
680 $oprofile = Ostatus_profile::staticGet('uri', $recipient);
682 if ($oprofile->isGroup()) {
683 // Deliver to local members of this remote group.
684 // @fixme sender verification?
685 $groups[] = $oprofile->group_id;
687 common_log(LOG_DEBUG, "Skipping reply to remote profile $recipient");
692 // Is the recipient a local group?
693 // @fixme uri on user_group isn't reliable yet
694 // $group = User_group::staticGet('uri', $recipient);
695 $id = OStatusPlugin::localGroupFromUrl($recipient);
697 $group = User_group::staticGet('id', $id);
699 // Deliver to all members of this local group if allowed.
700 $profile = $sender->localProfile();
701 if ($profile->isMember($group)) {
702 $groups[] = $group->id;
704 common_log(LOG_DEBUG, "Skipping reply to local group $group->nickname as sender $profile->id is not a member");
708 common_log(LOG_DEBUG, "Skipping reply to bogus group $recipient");
712 common_log(LOG_DEBUG, "Skipping reply to unrecognized profile $recipient");
715 $attention_uris = $replies;
716 common_log(LOG_DEBUG, "Local reply recipients: " . implode(', ', $replies));
717 common_log(LOG_DEBUG, "Local group recipients: " . implode(', ', $groups));
722 * Look up and if necessary create an Ostatus_profile for the remote entity
723 * with the given profile page URL. This should never return null -- you
724 * will either get an object or an exception will be thrown.
726 * @param string $profile_url
727 * @return Ostatus_profile
731 public static function ensureProfileURL($profile_url, $hints=array())
733 $oprofile = self::getFromProfileURL($profile_url);
735 if (!empty($oprofile)) {
739 $hints['profileurl'] = $profile_url;
744 $client = new HTTPClient();
745 $client->setHeader('Accept', 'text/html,application/xhtml+xml');
746 $response = $client->get($profile_url);
748 if (!$response->isOk()) {
749 throw new Exception("Could not reach profile page: " . $profile_url);
752 // Check if we have a non-canonical URL
754 $finalUrl = $response->getUrl();
756 if ($finalUrl != $profile_url) {
758 $hints['profileurl'] = $finalUrl;
760 $oprofile = self::getFromProfileURL($finalUrl);
762 if (!empty($oprofile)) {
767 // Try to get some hCard data
769 $body = $response->getBody();
771 $hcardHints = DiscoveryHints::hcardHints($body, $finalUrl);
773 if (!empty($hcardHints)) {
774 $hints = array_merge($hints, $hcardHints);
777 // Check if they've got an LRDD header
779 $lrdd = LinkHeader::getLink($response, 'lrdd', 'application/xrd+xml');
783 $xrd = Discovery::fetchXrd($lrdd);
784 $xrdHints = DiscoveryHints::fromXRD($xrd);
786 $hints = array_merge($hints, $xrdHints);
789 // If discovery found a feedurl (probably from LRDD), use it.
791 if (array_key_exists('feedurl', $hints)) {
792 return self::ensureFeedURL($hints['feedurl'], $hints);
795 // Get the feed URL from HTML
797 $discover = new FeedDiscovery();
799 $feedurl = $discover->discoverFromHTML($finalUrl, $body);
801 if (!empty($feedurl)) {
802 $hints['feedurl'] = $feedurl;
803 return self::ensureFeedURL($feedurl, $hints);
806 throw new Exception("Could not find a feed URL for profile page " . $finalUrl);
810 * Look up the Ostatus_profile, if present, for a remote entity with the
811 * given profile page URL. Will return null for both unknown and invalid
814 * @return mixed Ostatus_profile or null
815 * @throws Exception for local profiles
817 static function getFromProfileURL($profile_url)
819 $profile = Profile::staticGet('profileurl', $profile_url);
821 if (empty($profile)) {
825 // Is it a known Ostatus profile?
827 $oprofile = Ostatus_profile::staticGet('profile_id', $profile->id);
829 if (!empty($oprofile)) {
833 // Is it a local user?
835 $user = User::staticGet('id', $profile->id);
838 throw new Exception("'$profile_url' is the profile for local user '{$user->nickname}'.");
841 // Continue discovery; it's a remote profile
842 // for OMB or some other protocol, may also
849 * Look up and if necessary create an Ostatus_profile for remote entity
850 * with the given update feed. This should never return null -- you will
851 * either get an object or an exception will be thrown.
853 * @return Ostatus_profile
856 public static function ensureFeedURL($feed_url, $hints=array())
858 $discover = new FeedDiscovery();
860 $feeduri = $discover->discoverFromFeedURL($feed_url);
861 $hints['feedurl'] = $feeduri;
863 $huburi = $discover->getAtomLink('hub');
864 $hints['hub'] = $huburi;
865 $salmonuri = $discover->getAtomLink(Salmon::NS_REPLIES);
866 $hints['salmon'] = $salmonuri;
869 // We can only deal with folks with a PuSH hub
870 throw new FeedSubNoHubException();
873 $feedEl = $discover->root;
875 if ($feedEl->tagName == 'feed') {
876 return self::ensureAtomFeed($feedEl, $hints);
877 } else if ($feedEl->tagName == 'channel') {
878 return self::ensureRssChannel($feedEl, $hints);
880 throw new FeedSubBadXmlException($feeduri);
885 * Look up and, if necessary, create an Ostatus_profile for the remote
886 * profile with the given Atom feed - actually loaded from the feed.
887 * This should never return null -- you will either get an object or
888 * an exception will be thrown.
890 * @param DOMElement $feedEl root element of a loaded Atom feed
891 * @param array $hints additional discovery information passed from higher levels
892 * @fixme should this be marked public?
893 * @return Ostatus_profile
896 public static function ensureAtomFeed($feedEl, $hints)
898 // Try to get a profile from the feed activity:subject
900 $subject = ActivityUtils::child($feedEl, Activity::SUBJECT, Activity::SPEC);
902 if (!empty($subject)) {
903 $subjObject = new ActivityObject($subject);
904 return self::ensureActivityObjectProfile($subjObject, $hints);
907 // Otherwise, try the feed author
909 $author = ActivityUtils::child($feedEl, Activity::AUTHOR, Activity::ATOM);
911 if (!empty($author)) {
912 $authorObject = new ActivityObject($author);
913 return self::ensureActivityObjectProfile($authorObject, $hints);
916 // Sheesh. Not a very nice feed! Let's try fingerpoken in the
919 $entries = $feedEl->getElementsByTagNameNS(Activity::ATOM, 'entry');
921 if (!empty($entries) && $entries->length > 0) {
923 $entry = $entries->item(0);
925 $actor = ActivityUtils::child($entry, Activity::ACTOR, Activity::SPEC);
927 if (!empty($actor)) {
928 $actorObject = new ActivityObject($actor);
929 return self::ensureActivityObjectProfile($actorObject, $hints);
933 $author = ActivityUtils::child($entry, Activity::AUTHOR, Activity::ATOM);
935 if (!empty($author)) {
936 $authorObject = new ActivityObject($author);
937 return self::ensureActivityObjectProfile($authorObject, $hints);
941 // XXX: make some educated guesses here
943 throw new FeedSubException("Can't find enough profile information to make a feed.");
947 * Look up and, if necessary, create an Ostatus_profile for the remote
948 * profile with the given RSS feed - actually loaded from the feed.
949 * This should never return null -- you will either get an object or
950 * an exception will be thrown.
952 * @param DOMElement $feedEl root element of a loaded RSS feed
953 * @param array $hints additional discovery information passed from higher levels
954 * @fixme should this be marked public?
955 * @return Ostatus_profile
958 public static function ensureRssChannel($feedEl, $hints)
960 // Special-case for Posterous. They have some nice metadata in their
961 // posterous:author elements. We should use them instead of the channel.
963 $items = $feedEl->getElementsByTagName('item');
965 if ($items->length > 0) {
966 $item = $items->item(0);
967 $authorEl = ActivityUtils::child($item, ActivityObject::AUTHOR, ActivityObject::POSTEROUS);
968 if (!empty($authorEl)) {
969 $obj = ActivityObject::fromPosterousAuthor($authorEl);
970 // Posterous has multiple authors per feed, and multiple feeds
971 // per author. We check if this is the "main" feed for this author.
972 if (array_key_exists('profileurl', $hints) &&
973 !empty($obj->poco) &&
974 common_url_to_nickname($hints['profileurl']) == $obj->poco->preferredUsername) {
975 return self::ensureActivityObjectProfile($obj, $hints);
980 // @fixme we should check whether this feed has elements
981 // with different <author> or <dc:creator> elements, and... I dunno.
982 // Do something about that.
984 $obj = ActivityObject::fromRssChannel($feedEl);
986 return self::ensureActivityObjectProfile($obj, $hints);
990 * Download and update given avatar image
993 * @throws Exception in various failure cases
995 protected function updateAvatar($url)
997 if ($url == $this->avatar) {
998 // We've already got this one.
1001 if (!common_valid_http_url($url)) {
1002 throw new ServerException(_m("Invalid avatar URL %s"), $url);
1005 if ($this->isGroup()) {
1006 $self = $this->localGroup();
1008 $self = $this->localProfile();
1011 throw new ServerException(sprintf(
1012 _m("Tried to update avatar for unsaved remote profile %s"),
1016 // @fixme this should be better encapsulated
1017 // ripped from oauthstore.php (for old OMB client)
1018 $temp_filename = tempnam(sys_get_temp_dir(), 'listener_avatar');
1019 if (!copy($url, $temp_filename)) {
1020 throw new ServerException(sprintf(_m("Unable to fetch avatar from %s"), $url));
1023 if ($this->isGroup()) {
1024 $id = $this->group_id;
1026 $id = $this->profile_id;
1028 // @fixme should we be using different ids?
1029 $imagefile = new ImageFile($id, $temp_filename);
1030 $filename = Avatar::filename($id,
1031 image_type_to_extension($imagefile->type),
1033 common_timestamp());
1034 rename($temp_filename, Avatar::path($filename));
1035 $self->setOriginal($filename);
1037 $orig = clone($this);
1038 $this->avatar = $url;
1039 $this->update($orig);
1043 * Pull avatar URL from ActivityObject or profile hints
1045 * @param ActivityObject $object
1046 * @param array $hints
1047 * @return mixed URL string or false
1050 protected static function getActivityObjectAvatar($object, $hints=array())
1052 if ($object->avatarLinks) {
1054 // Take the exact-size avatar, or the largest avatar, or the first avatar if all sizeless
1055 foreach ($object->avatarLinks as $avatar) {
1056 if ($avatar->width == AVATAR_PROFILE_SIZE && $avatar->height = AVATAR_PROFILE_SIZE) {
1061 if (!$best || $avatar->width > $best->width) {
1066 } else if (array_key_exists('avatar', $hints)) {
1067 return $hints['avatar'];
1073 * Get an appropriate avatar image source URL, if available.
1075 * @param ActivityObject $actor
1076 * @param DOMElement $feed
1080 protected static function getAvatar($actor, $feed)
1084 if ($actor->avatar) {
1085 $url = trim($actor->avatar);
1088 // Check <atom:logo> and <atom:icon> on the feed
1089 $els = $feed->childNodes();
1090 if ($els && $els->length) {
1091 for ($i = 0; $i < $els->length; $i++) {
1092 $el = $els->item($i);
1093 if ($el->namespaceURI == Activity::ATOM) {
1094 if (empty($url) && $el->localName == 'logo') {
1095 $url = trim($el->textContent);
1098 if (empty($icon) && $el->localName == 'icon') {
1099 // Use as a fallback
1100 $icon = trim($el->textContent);
1105 if ($icon && !$url) {
1110 $opts = array('allowed_schemes' => array('http', 'https'));
1111 if (Validate::uri($url, $opts)) {
1115 return common_path('plugins/OStatus/images/96px-Feed-icon.svg.png');
1119 * Fetch, or build if necessary, an Ostatus_profile for the actor
1120 * in a given Activity Streams activity.
1121 * This should never return null -- you will either get an object or
1122 * an exception will be thrown.
1124 * @param Activity $activity
1125 * @param string $feeduri if we already know the canonical feed URI!
1126 * @param string $salmonuri if we already know the salmon return channel URI
1127 * @return Ostatus_profile
1131 public static function ensureActorProfile($activity, $hints=array())
1133 return self::ensureActivityObjectProfile($activity->actor, $hints);
1137 * Fetch, or build if necessary, an Ostatus_profile for the profile
1138 * in a given Activity Streams object (can be subject, actor, or object).
1139 * This should never return null -- you will either get an object or
1140 * an exception will be thrown.
1142 * @param ActivityObject $object
1143 * @param array $hints additional discovery information passed from higher levels
1144 * @return Ostatus_profile
1148 public static function ensureActivityObjectProfile($object, $hints=array())
1150 $profile = self::getActivityObjectProfile($object);
1152 $profile->updateFromActivityObject($object, $hints);
1154 $profile = self::createActivityObjectProfile($object, $hints);
1160 * @param Activity $activity
1161 * @return mixed matching Ostatus_profile or false if none known
1162 * @throws ServerException if feed info invalid
1164 public static function getActorProfile($activity)
1166 return self::getActivityObjectProfile($activity->actor);
1170 * @param ActivityObject $activity
1171 * @return mixed matching Ostatus_profile or false if none known
1172 * @throws ServerException if feed info invalid
1174 protected static function getActivityObjectProfile($object)
1176 $uri = self::getActivityObjectProfileURI($object);
1177 return Ostatus_profile::staticGet('uri', $uri);
1181 * Get the identifier URI for the remote entity described
1182 * by this ActivityObject. This URI is *not* guaranteed to be
1183 * a resolvable HTTP/HTTPS URL.
1185 * @param ActivityObject $object
1187 * @throws ServerException if feed info invalid
1189 protected static function getActivityObjectProfileURI($object)
1192 if (ActivityUtils::validateUri($object->id)) {
1197 // If the id is missing or invalid (we've seen feeds mistakenly listing
1198 // things like local usernames in that field) then we'll use the profile
1199 // page link, if valid.
1200 if ($object->link && common_valid_http_url($object->link)) {
1201 return $object->link;
1203 throw new ServerException("No author ID URI found");
1207 * @fixme validate stuff somewhere
1211 * Create local ostatus_profile and profile/user_group entries for
1212 * the provided remote user or group.
1213 * This should never return null -- you will either get an object or
1214 * an exception will be thrown.
1216 * @param ActivityObject $object
1217 * @param array $hints
1219 * @return Ostatus_profile
1221 protected static function createActivityObjectProfile($object, $hints=array())
1223 $homeuri = $object->id;
1227 common_log(LOG_DEBUG, __METHOD__ . " empty actor profile URI: " . var_export($activity, true));
1228 throw new Exception("No profile URI");
1231 $user = User::staticGet('uri', $homeuri);
1233 throw new Exception("Local user can't be referenced as remote.");
1236 if (OStatusPlugin::localGroupFromUrl($homeuri)) {
1237 throw new Exception("Local group can't be referenced as remote.");
1240 if (array_key_exists('feedurl', $hints)) {
1241 $feeduri = $hints['feedurl'];
1243 $discover = new FeedDiscovery();
1244 $feeduri = $discover->discoverFromURL($homeuri);
1247 if (array_key_exists('salmon', $hints)) {
1248 $salmonuri = $hints['salmon'];
1251 $discover = new FeedDiscovery();
1252 $discover->discoverFromFeedURL($hints['feedurl']);
1254 $salmonuri = $discover->getAtomLink(Salmon::NS_REPLIES);
1257 if (array_key_exists('hub', $hints)) {
1258 $huburi = $hints['hub'];
1261 $discover = new FeedDiscovery();
1262 $discover->discoverFromFeedURL($hints['feedurl']);
1264 $huburi = $discover->getAtomLink('hub');
1268 // We can only deal with folks with a PuSH hub
1269 throw new FeedSubNoHubException();
1272 $oprofile = new Ostatus_profile();
1274 $oprofile->uri = $homeuri;
1275 $oprofile->feeduri = $feeduri;
1276 $oprofile->salmonuri = $salmonuri;
1278 $oprofile->created = common_sql_now();
1279 $oprofile->modified = common_sql_now();
1281 if ($object->type == ActivityObject::PERSON) {
1282 $profile = new Profile();
1283 $profile->created = common_sql_now();
1284 self::updateProfile($profile, $object, $hints);
1286 $oprofile->profile_id = $profile->insert();
1287 if (!$oprofile->profile_id) {
1288 throw new ServerException("Can't save local profile");
1291 $group = new User_group();
1292 $group->uri = $homeuri;
1293 $group->created = common_sql_now();
1294 self::updateGroup($group, $object, $hints);
1296 $oprofile->group_id = $group->insert();
1297 if (!$oprofile->group_id) {
1298 throw new ServerException("Can't save local profile");
1302 $ok = $oprofile->insert();
1305 $avatar = self::getActivityObjectAvatar($object, $hints);
1307 $oprofile->updateAvatar($avatar);
1311 throw new ServerException("Can't save OStatus profile");
1316 * Save any updated profile information to our local copy.
1317 * @param ActivityObject $object
1318 * @param array $hints
1320 public function updateFromActivityObject($object, $hints=array())
1322 if ($this->isGroup()) {
1323 $group = $this->localGroup();
1324 self::updateGroup($group, $object, $hints);
1326 $profile = $this->localProfile();
1327 self::updateProfile($profile, $object, $hints);
1329 $avatar = self::getActivityObjectAvatar($object, $hints);
1331 $this->updateAvatar($avatar);
1335 protected static function updateProfile($profile, $object, $hints=array())
1337 $orig = clone($profile);
1339 $profile->nickname = self::getActivityObjectNickname($object, $hints);
1341 if (!empty($object->title)) {
1342 $profile->fullname = $object->title;
1343 } else if (array_key_exists('fullname', $hints)) {
1344 $profile->fullname = $hints['fullname'];
1347 if (!empty($object->link)) {
1348 $profile->profileurl = $object->link;
1349 } else if (array_key_exists('profileurl', $hints)) {
1350 $profile->profileurl = $hints['profileurl'];
1351 } else if (Validate::uri($object->id, array('allowed_schemes' => array('http', 'https')))) {
1352 $profile->profileurl = $object->id;
1355 $profile->bio = self::getActivityObjectBio($object, $hints);
1356 $profile->location = self::getActivityObjectLocation($object, $hints);
1357 $profile->homepage = self::getActivityObjectHomepage($object, $hints);
1359 if (!empty($object->geopoint)) {
1360 $location = ActivityContext::locationFromPoint($object->geopoint);
1361 if (!empty($location)) {
1362 $profile->lat = $location->lat;
1363 $profile->lon = $location->lon;
1367 // @fixme tags/categories
1368 // @todo tags from categories
1371 common_log(LOG_DEBUG, "Updating OStatus profile $profile->id from remote info $object->id: " . var_export($object, true) . var_export($hints, true));
1372 $profile->update($orig);
1376 protected static function updateGroup($group, $object, $hints=array())
1378 $orig = clone($group);
1380 $group->nickname = self::getActivityObjectNickname($object, $hints);
1381 $group->fullname = $object->title;
1383 if (!empty($object->link)) {
1384 $group->mainpage = $object->link;
1385 } else if (array_key_exists('profileurl', $hints)) {
1386 $group->mainpage = $hints['profileurl'];
1389 // @todo tags from categories
1390 $group->description = self::getActivityObjectBio($object, $hints);
1391 $group->location = self::getActivityObjectLocation($object, $hints);
1392 $group->homepage = self::getActivityObjectHomepage($object, $hints);
1395 common_log(LOG_DEBUG, "Updating OStatus group $group->id from remote info $object->id: " . var_export($object, true) . var_export($hints, true));
1396 $group->update($orig);
1400 protected static function getActivityObjectHomepage($object, $hints=array())
1403 $poco = $object->poco;
1405 if (!empty($poco)) {
1406 $url = $poco->getPrimaryURL();
1407 if ($url && $url->type == 'homepage') {
1408 $homepage = $url->value;
1412 // @todo Try for a another PoCo URL?
1417 protected static function getActivityObjectLocation($object, $hints=array())
1421 if (!empty($object->poco) &&
1422 isset($object->poco->address->formatted)) {
1423 $location = $object->poco->address->formatted;
1424 } else if (array_key_exists('location', $hints)) {
1425 $location = $hints['location'];
1428 if (!empty($location)) {
1429 if (mb_strlen($location) > 255) {
1430 $location = mb_substr($note, 0, 255 - 3) . ' … ';
1434 // @todo Try to find location some othe way? Via goerss point?
1439 protected static function getActivityObjectBio($object, $hints=array())
1443 if (!empty($object->poco)) {
1444 $note = $object->poco->note;
1445 } else if (array_key_exists('bio', $hints)) {
1446 $note = $hints['bio'];
1449 if (!empty($note)) {
1450 if (Profile::bioTooLong($note)) {
1451 // XXX: truncate ok?
1452 $bio = mb_substr($note, 0, Profile::maxBio() - 3) . ' … ';
1458 // @todo Try to get bio info some other way?
1463 protected static function getActivityObjectNickname($object, $hints=array())
1465 if ($object->poco) {
1466 if (!empty($object->poco->preferredUsername)) {
1467 return common_nicknamize($object->poco->preferredUsername);
1471 if (!empty($object->nickname)) {
1472 return common_nicknamize($object->nickname);
1475 if (array_key_exists('nickname', $hints)) {
1476 return $hints['nickname'];
1479 // Try the profile url (like foo.example.com or example.com/user/foo)
1481 $profileUrl = ($object->link) ? $object->link : $hints['profileurl'];
1483 if (!empty($profileUrl)) {
1484 $nickname = self::nicknameFromURI($profileUrl);
1487 // Try the URI (may be a tag:, http:, acct:, ...
1489 if (empty($nickname)) {
1490 $nickname = self::nicknameFromURI($object->id);
1493 // Try a Webfinger if one was passed (way) down
1495 if (empty($nickname)) {
1496 if (array_key_exists('webfinger', $hints)) {
1497 $nickname = self::nicknameFromURI($hints['webfinger']);
1503 if (empty($nickname)) {
1504 $nickname = common_nicknamize($object->title);
1510 protected static function nicknameFromURI($uri)
1512 preg_match('/(\w+):/', $uri, $matches);
1514 $protocol = $matches[1];
1516 switch ($protocol) {
1519 if (preg_match("/^$protocol:(.*)?@.*\$/", $uri, $matches)) {
1520 return common_canonical_nickname($matches[1]);
1524 return common_url_to_nickname($uri);
1532 * Look up, and if necessary create, an Ostatus_profile for the remote
1533 * entity with the given webfinger address.
1534 * This should never return null -- you will either get an object or
1535 * an exception will be thrown.
1537 * @param string $addr webfinger address
1538 * @return Ostatus_profile
1539 * @throws Exception on error conditions
1541 public static function ensureWebfinger($addr)
1543 // First, try the cache
1545 $uri = self::cacheGet(sprintf('ostatus_profile:webfinger:%s', $addr));
1547 if ($uri !== false) {
1548 if (is_null($uri)) {
1549 // Negative cache entry
1550 throw new Exception('Not a valid webfinger address.');
1552 $oprofile = Ostatus_profile::staticGet('uri', $uri);
1553 if (!empty($oprofile)) {
1558 // Try looking it up
1560 $oprofile = Ostatus_profile::staticGet('uri', 'acct:'.$addr);
1562 if (!empty($oprofile)) {
1563 self::cacheSet(sprintf('ostatus_profile:webfinger:%s', $addr), $oprofile->uri);
1567 // Now, try some discovery
1569 $disco = new Discovery();
1572 $xrd = $disco->lookup($addr);
1573 } catch (Exception $e) {
1574 // Save negative cache entry so we don't waste time looking it up again.
1575 // @fixme distinguish temporary failures?
1576 self::cacheSet(sprintf('ostatus_profile:webfinger:%s', $addr), null);
1577 throw new Exception('Not a valid webfinger address.');
1580 $hints = array('webfinger' => $addr);
1582 $dhints = DiscoveryHints::fromXRD($xrd);
1584 $hints = array_merge($hints, $dhints);
1586 // If there's an Hcard, let's grab its info
1588 if (array_key_exists('hcard', $hints)) {
1589 if (!array_key_exists('profileurl', $hints) ||
1590 $hints['hcard'] != $hints['profileurl']) {
1591 $hcardHints = DiscoveryHints::fromHcardUrl($hints['hcard']);
1592 $hints = array_merge($hcardHints, $hints);
1596 // If we got a feed URL, try that
1598 if (array_key_exists('feedurl', $hints)) {
1600 common_log(LOG_INFO, "Discovery on acct:$addr with feed URL " . $hints['feedurl']);
1601 $oprofile = self::ensureFeedURL($hints['feedurl'], $hints);
1602 self::cacheSet(sprintf('ostatus_profile:webfinger:%s', $addr), $oprofile->uri);
1604 } catch (Exception $e) {
1605 common_log(LOG_WARNING, "Failed creating profile from feed URL '$feedUrl': " . $e->getMessage());
1610 // If we got a profile page, try that!
1612 if (array_key_exists('profileurl', $hints)) {
1614 common_log(LOG_INFO, "Discovery on acct:$addr with profile URL $profileUrl");
1615 $oprofile = self::ensureProfileURL($hints['profileurl'], $hints);
1616 self::cacheSet(sprintf('ostatus_profile:webfinger:%s', $addr), $oprofile->uri);
1618 } catch (Exception $e) {
1619 common_log(LOG_WARNING, "Failed creating profile from profile URL '$profileUrl': " . $e->getMessage());
1627 if (array_key_exists('salmon', $hints)) {
1629 $salmonEndpoint = $hints['salmon'];
1631 // An account URL, a salmon endpoint, and a dream? Not much to go
1632 // on, but let's give it a try
1634 $uri = 'acct:'.$addr;
1636 $profile = new Profile();
1638 $profile->nickname = self::nicknameFromUri($uri);
1639 $profile->created = common_sql_now();
1641 if (isset($profileUrl)) {
1642 $profile->profileurl = $profileUrl;
1645 $profile_id = $profile->insert();
1648 common_log_db_error($profile, 'INSERT', __FILE__);
1649 throw new Exception("Couldn't save profile for '$addr'");
1652 $oprofile = new Ostatus_profile();
1654 $oprofile->uri = $uri;
1655 $oprofile->salmonuri = $salmonEndpoint;
1656 $oprofile->profile_id = $profile_id;
1657 $oprofile->created = common_sql_now();
1659 if (isset($feedUrl)) {
1660 $profile->feeduri = $feedUrl;
1663 $result = $oprofile->insert();
1666 common_log_db_error($oprofile, 'INSERT', __FILE__);
1667 throw new Exception("Couldn't save ostatus_profile for '$addr'");
1670 self::cacheSet(sprintf('ostatus_profile:webfinger:%s', $addr), $oprofile->uri);
1674 throw new Exception("Couldn't find a valid profile for '$addr'");
1678 * Store the full-length scrubbed HTML of a remote notice to an attachment
1679 * file on our server. We'll link to this at the end of the cropped version.
1681 * @param string $title plaintext for HTML page's title
1682 * @param string $rendered HTML fragment for HTML page's body
1685 function saveHTMLFile($title, $rendered)
1687 $final = sprintf("<!DOCTYPE html>\n<html><head><title>%s</title></head>".
1688 '<body>%s</body></html>',
1689 htmlspecialchars($title),
1692 $filename = File::filename($this->localProfile(),
1693 'ostatus', // ignored?
1696 $filepath = File::path($filename);
1698 file_put_contents($filepath, $final);
1702 $file->filename = $filename;
1703 $file->url = File::url($filename);
1704 $file->size = filesize($filepath);
1705 $file->date = time();
1706 $file->mimetype = 'text/html';
1708 $file_id = $file->insert();
1710 if ($file_id === false) {
1711 common_log_db_error($file, "INSERT", __FILE__);
1712 throw new ServerException(_('Could not store HTML content of long post as file.'));