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 // @todo i18n FIXME: use sprintf and add i18n.
192 throw new ServerException("Invalid ostatus_profile state: both group and profile IDs set for $this->uri.");
194 // @todo i18n FIXME: use sprintf and add i18n.
195 throw new ServerException("Invalid ostatus_profile state: both group and profile IDs empty for $this->uri.");
200 * Send a subscription request to the hub for this feed.
201 * The hub will later send us a confirmation POST to /main/push/callback.
203 * @return bool true on success, false on failure
204 * @throws ServerException if feed state is not valid
206 public function subscribe()
208 $feedsub = FeedSub::ensureFeed($this->feeduri);
209 if ($feedsub->sub_state == 'active') {
210 // Active subscription, we don't need to do anything.
213 // Inactive or we got left in an inconsistent state.
214 // Run a subscription request to make sure we're current!
215 return $feedsub->subscribe();
220 * Check if this remote profile has any active local subscriptions, and
221 * if not drop the PuSH subscription feed.
223 * @return bool true on success, false on failure
225 public function unsubscribe() {
226 $this->garbageCollect();
230 * Check if this remote profile has any active local subscriptions, and
231 * if not drop the PuSH subscription feed.
235 public function garbageCollect()
237 $feedsub = FeedSub::staticGet('uri', $this->feeduri);
238 return $feedsub->garbageCollect();
242 * Check if this remote profile has any active local subscriptions, so the
243 * PuSH subscription layer can decide if it can drop the feed.
245 * This gets called via the FeedSubSubscriberCount event when running
246 * FeedSub::garbageCollect().
250 public function subscriberCount()
252 if ($this->isGroup()) {
253 $members = $this->localGroup()->getMembers(0, 1);
254 $count = $members->N;
256 $count = $this->localProfile()->subscriberCount();
258 common_log(LOG_INFO, __METHOD__ . " SUB COUNT BEFORE: $count");
260 // Other plugins may be piggybacking on OStatus without having
261 // an active group or user-to-user subscription we know about.
262 Event::handle('Ostatus_profileSubscriberCount', array($this, &$count));
263 common_log(LOG_INFO, __METHOD__ . " SUB COUNT AFTER: $count");
269 * Send an Activity Streams notification to the remote Salmon endpoint,
272 * @param Profile $actor Actor who did the activity
273 * @param string $verb Activity::SUBSCRIBE or Activity::JOIN
274 * @param Object $object object of the action; must define asActivityNoun($tag)
276 public function notify($actor, $verb, $object=null)
278 if (!($actor instanceof Profile)) {
279 $type = gettype($actor);
280 if ($type == 'object') {
281 $type = get_class($actor);
283 throw new ServerException("Invalid actor passed to " . __METHOD__ . ": " . $type);
285 if ($object == null) {
288 if ($this->salmonuri) {
291 $id = TagURI::mint('%s:%s:%s',
294 common_date_iso8601(time()));
296 // @fixme consolidate all these NS settings somewhere
297 $attributes = array('xmlns' => Activity::ATOM,
298 'xmlns:activity' => 'http://activitystrea.ms/spec/1.0/',
299 'xmlns:thr' => 'http://purl.org/syndication/thread/1.0',
300 'xmlns:georss' => 'http://www.georss.org/georss',
301 'xmlns:ostatus' => 'http://ostatus.org/schema/1.0',
302 'xmlns:poco' => 'http://portablecontacts.net/spec/1.0',
303 'xmlns:media' => 'http://purl.org/syndication/atommedia');
305 $entry = new XMLStringer();
306 $entry->elementStart('entry', $attributes);
307 $entry->element('id', null, $id);
308 $entry->element('title', null, $text);
309 $entry->element('summary', null, $text);
310 $entry->element('published', null, common_date_w3dtf(common_sql_now()));
312 $entry->element('activity:verb', null, $verb);
313 $entry->raw($actor->asAtomAuthor());
314 $entry->raw($actor->asActivityActor());
315 $entry->raw($object->asActivityNoun('object'));
316 $entry->elementEnd('entry');
318 $xml = $entry->getString();
319 common_log(LOG_INFO, "Posting to Salmon endpoint $this->salmonuri: $xml");
321 $salmon = new Salmon(); // ?
322 return $salmon->post($this->salmonuri, $xml, $actor);
328 * Send a Salmon notification ping immediately, and confirm that we got
329 * an acceptable response from the remote site.
331 * @param mixed $entry XML string, Notice, or Activity
332 * @return boolean success
334 public function notifyActivity($entry, $actor)
336 if ($this->salmonuri) {
337 $salmon = new Salmon();
338 return $salmon->post($this->salmonuri, $this->notifyPrepXml($entry), $actor);
345 * Queue a Salmon notification for later. If queues are disabled we'll
346 * send immediately but won't get the return value.
348 * @param mixed $entry XML string, Notice, or Activity
349 * @return boolean success
351 public function notifyDeferred($entry, $actor)
353 if ($this->salmonuri) {
354 $data = array('salmonuri' => $this->salmonuri,
355 'entry' => $this->notifyPrepXml($entry),
356 'actor' => $actor->id);
358 $qm = QueueManager::get();
359 return $qm->enqueue($data, 'salmon');
365 protected function notifyPrepXml($entry)
367 $preamble = '<?xml version="1.0" encoding="UTF-8" ?' . '>';
368 if (is_string($entry)) {
370 } else if ($entry instanceof Activity) {
371 return $preamble . $entry->asString(true);
372 } else if ($entry instanceof Notice) {
373 return $preamble . $entry->asAtomEntry(true, true);
375 // @todo i18n FIXME: use sprintf and add i18n.
376 throw new ServerException("Invalid type passed to Ostatus_profile::notify; must be XML string or Activity entry.");
380 function getBestName()
382 if ($this->isGroup()) {
383 return $this->localGroup()->getBestName();
385 return $this->localProfile()->getBestName();
390 * Read and post notices for updates from the feed.
391 * Currently assumes that all items in the feed are new,
392 * coming from a PuSH hub.
394 * @param DOMDocument $doc
395 * @param string $source identifier ("push")
397 public function processFeed(DOMDocument $doc, $source)
399 $feed = $doc->documentElement;
401 if ($feed->localName == 'feed' && $feed->namespaceURI == Activity::ATOM) {
402 $this->processAtomFeed($feed, $source);
403 } else if ($feed->localName == 'rss') { // @fixme check namespace
404 $this->processRssFeed($feed, $source);
406 throw new Exception("Unknown feed format.");
410 public function processAtomFeed(DOMElement $feed, $source)
412 $entries = $feed->getElementsByTagNameNS(Activity::ATOM, 'entry');
413 if ($entries->length == 0) {
414 common_log(LOG_ERR, __METHOD__ . ": no entries in feed update, ignoring");
418 for ($i = 0; $i < $entries->length; $i++) {
419 $entry = $entries->item($i);
420 $this->processEntry($entry, $feed, $source);
424 public function processRssFeed(DOMElement $rss, $source)
426 $channels = $rss->getElementsByTagName('channel');
428 if ($channels->length == 0) {
429 throw new Exception("RSS feed without a channel.");
430 } else if ($channels->length > 1) {
431 common_log(LOG_WARNING, __METHOD__ . ": more than one channel in an RSS feed");
434 $channel = $channels->item(0);
436 $items = $channel->getElementsByTagName('item');
438 for ($i = 0; $i < $items->length; $i++) {
439 $item = $items->item($i);
440 $this->processEntry($item, $channel, $source);
445 * Process a posted entry from this feed source.
447 * @param DOMElement $entry
448 * @param DOMElement $feed for context
449 * @param string $source identifier ("push" or "salmon")
452 public function processEntry($entry, $feed, $source)
454 $activity = new Activity($entry, $feed);
456 if (Event::handle('StartHandleFeedEntry', array($activity))) {
458 // @todo process all activity objects
459 switch ($activity->objects[0]->type) {
460 case ActivityObject::ARTICLE:
461 case ActivityObject::BLOGENTRY:
462 case ActivityObject::NOTE:
463 case ActivityObject::STATUS:
464 case ActivityObject::COMMENT:
466 if ($activity->verb == ActivityVerb::POST) {
467 $this->processPost($activity, $source);
469 common_log(LOG_INFO, "Ignoring activity with unrecognized verb $activity->verb");
473 throw new ClientException("Can't handle that kind of post.");
476 Event::handle('EndHandleFeedEntry', array($activity));
481 * Process an incoming post activity from this remote feed.
482 * @param Activity $activity
483 * @param string $method 'push' or 'salmon'
484 * @return mixed saved Notice or false
485 * @fixme break up this function, it's getting nasty long
487 public function processPost($activity, $method)
489 if ($this->isGroup()) {
490 // A group feed will contain posts from multiple authors.
491 // @fixme validate these profiles in some way!
492 $oprofile = self::ensureActorProfile($activity);
493 if ($oprofile->isGroup()) {
494 // Groups can't post notices in StatusNet.
495 common_log(LOG_WARNING, "OStatus: skipping post with group listed as author: $oprofile->uri in feed from $this->uri");
499 $actor = $activity->actor;
502 // OK here! assume the default
503 } else if ($actor->id == $this->uri || $actor->link == $this->uri) {
504 $this->updateFromActivityObject($actor);
505 } else if ($actor->id) {
506 // We have an ActivityStreams actor with an explicit ID that doesn't match the feed owner.
507 // This isn't what we expect from mainline OStatus person feeds!
508 // Group feeds go down another path, with different validation...
509 // Most likely this is a plain ol' blog feed of some kind which
510 // doesn't match our expectations. We'll take the entry, but ignore
511 // the <author> info.
512 common_log(LOG_WARNING, "Got an actor '{$actor->title}' ({$actor->id}) on single-user feed for {$this->uri}");
514 // Plain <author> without ActivityStreams actor info.
515 // We'll just ignore this info for now and save the update under the feed's identity.
521 // It's not always an ActivityObject::NOTE, but... let's just say it is.
523 $note = $activity->objects[0];
525 // The id URI will be used as a unique identifier for for the notice,
526 // protecting against duplicate saves. It isn't required to be a URL;
527 // tag: URIs for instance are found in Google Buzz feeds.
528 $sourceUri = $note->id;
529 $dupe = Notice::staticGet('uri', $sourceUri);
531 common_log(LOG_INFO, "OStatus: ignoring duplicate post: $sourceUri");
535 // We'll also want to save a web link to the original notice, if provided.
538 $sourceUrl = $note->link;
539 } else if ($activity->link) {
540 $sourceUrl = $activity->link;
541 } else if (preg_match('!^https?://!', $note->id)) {
542 $sourceUrl = $note->id;
545 // Use summary as fallback for content
547 if (!empty($note->content)) {
548 $sourceContent = $note->content;
549 } else if (!empty($note->summary)) {
550 $sourceContent = $note->summary;
551 } else if (!empty($note->title)) {
552 $sourceContent = $note->title;
554 // @fixme fetch from $sourceUrl?
555 // @todo i18n FIXME: use sprintf and add i18n.
556 throw new ClientException("No content for notice {$sourceUri}.");
559 // Get (safe!) HTML and text versions of the content
561 $rendered = $this->purify($sourceContent);
562 $content = html_entity_decode(strip_tags($rendered));
564 $shortened = common_shorten_links($content);
566 // If it's too long, try using the summary, and make the
567 // HTML an attachment.
571 if (Notice::contentTooLong($shortened)) {
572 $attachment = $this->saveHTMLFile($note->title, $rendered);
573 $summary = html_entity_decode(strip_tags($note->summary));
574 if (empty($summary)) {
577 $shortSummary = common_shorten_links($summary);
578 if (Notice::contentTooLong($shortSummary)) {
579 $url = common_shorten_url($sourceUrl);
580 $shortSummary = substr($shortSummary,
582 Notice::maxContent() - (mb_strlen($url) + 2));
583 $content = $shortSummary . ' ' . $url;
585 // We mark up the attachment link specially for the HTML output
586 // so we can fold-out the full version inline.
587 $attachUrl = common_local_url('attachment',
588 array('attachment' => $attachment->id));
589 $rendered = common_render_text($shortSummary) .
590 '<a href="' . htmlspecialchars($attachUrl) .'"'.
591 ' class="attachment more"' .
592 ' title="'. htmlspecialchars(_m('Show more')) . '">' .
594 '</a>'; // @todo i18n FIXME: add translator hint/context.
598 $options = array('is_local' => Notice::REMOTE_OMB,
601 'rendered' => $rendered,
602 'replies' => array(),
607 // Check for optional attributes...
609 if (!empty($activity->time)) {
610 $options['created'] = common_sql_date($activity->time);
613 if ($activity->context) {
614 // Any individual or group attn: targets?
615 $replies = $activity->context->attention;
616 $options['groups'] = $this->filterReplies($oprofile, $replies);
617 $options['replies'] = $replies;
619 // Maintain direct reply associations
620 // @fixme what about conversation ID?
621 if (!empty($activity->context->replyToID)) {
622 $orig = Notice::staticGet('uri',
623 $activity->context->replyToID);
625 $options['reply_to'] = $orig->id;
629 $location = $activity->context->location;
631 $options['lat'] = $location->lat;
632 $options['lon'] = $location->lon;
633 if ($location->location_id) {
634 $options['location_ns'] = $location->location_ns;
635 $options['location_id'] = $location->location_id;
640 // Atom categories <-> hashtags
641 foreach ($activity->categories as $cat) {
643 $term = common_canonical_tag($cat->term);
645 $options['tags'][] = $term;
650 // Atom enclosures -> attachment URLs
651 foreach ($activity->enclosures as $href) {
652 // @fixme save these locally or....?
653 $options['urls'][] = $href;
657 $saved = Notice::saveNew($oprofile->profile_id,
662 Ostatus_source::saveNew($saved, $this, $method);
663 if (!empty($attachment)) {
664 File_to_post::processNew($attachment->id, $saved->id);
667 } catch (Exception $e) {
668 common_log(LOG_ERR, "OStatus save of remote message $sourceUri failed: " . $e->getMessage());
671 common_log(LOG_INFO, "OStatus saved remote message $sourceUri as notice id $saved->id");
678 protected function purify($html)
680 require_once INSTALLDIR.'/extlib/htmLawed/htmLawed.php';
681 $config = array('safe' => 1,
682 'deny_attribute' => 'id,style,on*');
683 return htmLawed($html, $config);
687 * Filters a list of recipient ID URIs to just those for local delivery.
688 * @param Ostatus_profile local profile of sender
689 * @param array in/out &$attention_uris set of URIs, will be pruned on output
690 * @return array of group IDs
692 protected function filterReplies($sender, &$attention_uris)
694 common_log(LOG_DEBUG, "Original reply recipients: " . implode(', ', $attention_uris));
697 foreach (array_unique($attention_uris) as $recipient) {
698 // Is the recipient a local user?
699 $user = User::staticGet('uri', $recipient);
701 // @fixme sender verification, spam etc?
702 $replies[] = $recipient;
706 // Is the recipient a local group?
707 // $group = User_group::staticGet('uri', $recipient);
708 $id = OStatusPlugin::localGroupFromUrl($recipient);
710 $group = User_group::staticGet('id', $id);
712 // Deliver to all members of this local group if allowed.
713 $profile = $sender->localProfile();
714 if ($profile->isMember($group)) {
715 $groups[] = $group->id;
717 common_log(LOG_DEBUG, "Skipping reply to local group $group->nickname as sender $profile->id is not a member");
721 common_log(LOG_DEBUG, "Skipping reply to bogus group $recipient");
725 // Is the recipient a remote user or group?
727 $oprofile = Ostatus_profile::ensureProfileURI($recipient);
728 if ($oprofile->isGroup()) {
729 // Deliver to local members of this remote group.
730 // @fixme sender verification?
731 $groups[] = $oprofile->group_id;
733 // may be canonicalized or something
734 $replies[] = $oprofile->uri;
737 } catch (Exception $e) {
738 // Neither a recognizable local nor remote user!
739 common_log(LOG_DEBUG, "Skipping reply to unrecognized profile $recipient: " . $e->getMessage());
743 $attention_uris = $replies;
744 common_log(LOG_DEBUG, "Local reply recipients: " . implode(', ', $replies));
745 common_log(LOG_DEBUG, "Local group recipients: " . implode(', ', $groups));
750 * Look up and if necessary create an Ostatus_profile for the remote entity
751 * with the given profile page URL. This should never return null -- you
752 * will either get an object or an exception will be thrown.
754 * @param string $profile_url
755 * @return Ostatus_profile
756 * @throws Exception on various error conditions
757 * @throws OStatusShadowException if this reference would obscure a local user/group
760 public static function ensureProfileURL($profile_url, $hints=array())
762 $oprofile = self::getFromProfileURL($profile_url);
764 if (!empty($oprofile)) {
768 $hints['profileurl'] = $profile_url;
773 $client = new HTTPClient();
774 $client->setHeader('Accept', 'text/html,application/xhtml+xml');
775 $response = $client->get($profile_url);
777 if (!$response->isOk()) {
778 // @todo i18n FIXME: use sprintf and add i18n.
779 throw new Exception("Could not reach profile page: " . $profile_url);
782 // Check if we have a non-canonical URL
784 $finalUrl = $response->getUrl();
786 if ($finalUrl != $profile_url) {
788 $hints['profileurl'] = $finalUrl;
790 $oprofile = self::getFromProfileURL($finalUrl);
792 if (!empty($oprofile)) {
797 // Try to get some hCard data
799 $body = $response->getBody();
801 $hcardHints = DiscoveryHints::hcardHints($body, $finalUrl);
803 if (!empty($hcardHints)) {
804 $hints = array_merge($hints, $hcardHints);
807 // Check if they've got an LRDD header
809 $lrdd = LinkHeader::getLink($response, 'lrdd', 'application/xrd+xml');
813 $xrd = Discovery::fetchXrd($lrdd);
814 $xrdHints = DiscoveryHints::fromXRD($xrd);
816 $hints = array_merge($hints, $xrdHints);
819 // If discovery found a feedurl (probably from LRDD), use it.
821 if (array_key_exists('feedurl', $hints)) {
822 return self::ensureFeedURL($hints['feedurl'], $hints);
825 // Get the feed URL from HTML
827 $discover = new FeedDiscovery();
829 $feedurl = $discover->discoverFromHTML($finalUrl, $body);
831 if (!empty($feedurl)) {
832 $hints['feedurl'] = $feedurl;
833 return self::ensureFeedURL($feedurl, $hints);
836 // @todo i18n FIXME: use sprintf and add i18n.
837 throw new Exception("Could not find a feed URL for profile page " . $finalUrl);
841 * Look up the Ostatus_profile, if present, for a remote entity with the
842 * given profile page URL. Will return null for both unknown and invalid
845 * @return mixed Ostatus_profile or null
846 * @throws OStatusShadowException for local profiles
848 static function getFromProfileURL($profile_url)
850 $profile = Profile::staticGet('profileurl', $profile_url);
852 if (empty($profile)) {
856 // Is it a known Ostatus profile?
858 $oprofile = Ostatus_profile::staticGet('profile_id', $profile->id);
860 if (!empty($oprofile)) {
864 // Is it a local user?
866 $user = User::staticGet('id', $profile->id);
869 // @todo i18n FIXME: use sprintf and add i18n.
870 throw new OStatusShadowException($profile, "'$profile_url' is the profile for local user '{$user->nickname}'.");
873 // Continue discovery; it's a remote profile
874 // for OMB or some other protocol, may also
881 * Look up and if necessary create an Ostatus_profile for remote entity
882 * with the given update feed. This should never return null -- you will
883 * either get an object or an exception will be thrown.
885 * @return Ostatus_profile
888 public static function ensureFeedURL($feed_url, $hints=array())
890 $discover = new FeedDiscovery();
892 $feeduri = $discover->discoverFromFeedURL($feed_url);
893 $hints['feedurl'] = $feeduri;
895 $huburi = $discover->getHubLink();
896 $hints['hub'] = $huburi;
897 $salmonuri = $discover->getAtomLink(Salmon::NS_REPLIES);
898 $hints['salmon'] = $salmonuri;
900 if (!$huburi && !common_config('feedsub', 'fallback_hub')) {
901 // We can only deal with folks with a PuSH hub
902 throw new FeedSubNoHubException();
905 $feedEl = $discover->root;
907 if ($feedEl->tagName == 'feed') {
908 return self::ensureAtomFeed($feedEl, $hints);
909 } else if ($feedEl->tagName == 'channel') {
910 return self::ensureRssChannel($feedEl, $hints);
912 throw new FeedSubBadXmlException($feeduri);
917 * Look up and, if necessary, create an Ostatus_profile for the remote
918 * profile with the given Atom feed - actually loaded from the feed.
919 * This should never return null -- you will either get an object or
920 * an exception will be thrown.
922 * @param DOMElement $feedEl root element of a loaded Atom feed
923 * @param array $hints additional discovery information passed from higher levels
924 * @fixme should this be marked public?
925 * @return Ostatus_profile
928 public static function ensureAtomFeed($feedEl, $hints)
930 // Try to get a profile from the feed activity:subject
932 $subject = ActivityUtils::child($feedEl, Activity::SUBJECT, Activity::SPEC);
934 if (!empty($subject)) {
935 $subjObject = new ActivityObject($subject);
936 return self::ensureActivityObjectProfile($subjObject, $hints);
939 // Otherwise, try the feed author
941 $author = ActivityUtils::child($feedEl, Activity::AUTHOR, Activity::ATOM);
943 if (!empty($author)) {
944 $authorObject = new ActivityObject($author);
945 return self::ensureActivityObjectProfile($authorObject, $hints);
948 // Sheesh. Not a very nice feed! Let's try fingerpoken in the
951 $entries = $feedEl->getElementsByTagNameNS(Activity::ATOM, 'entry');
953 if (!empty($entries) && $entries->length > 0) {
955 $entry = $entries->item(0);
957 $actor = ActivityUtils::child($entry, Activity::ACTOR, Activity::SPEC);
959 if (!empty($actor)) {
960 $actorObject = new ActivityObject($actor);
961 return self::ensureActivityObjectProfile($actorObject, $hints);
965 $author = ActivityUtils::child($entry, Activity::AUTHOR, Activity::ATOM);
967 if (!empty($author)) {
968 $authorObject = new ActivityObject($author);
969 return self::ensureActivityObjectProfile($authorObject, $hints);
973 // XXX: make some educated guesses here
975 throw new FeedSubException("Can't find enough profile information to make a feed.");
979 * Look up and, if necessary, create an Ostatus_profile for the remote
980 * profile with the given RSS feed - actually loaded from the feed.
981 * This should never return null -- you will either get an object or
982 * an exception will be thrown.
984 * @param DOMElement $feedEl root element of a loaded RSS feed
985 * @param array $hints additional discovery information passed from higher levels
986 * @fixme should this be marked public?
987 * @return Ostatus_profile
990 public static function ensureRssChannel($feedEl, $hints)
992 // Special-case for Posterous. They have some nice metadata in their
993 // posterous:author elements. We should use them instead of the channel.
995 $items = $feedEl->getElementsByTagName('item');
997 if ($items->length > 0) {
998 $item = $items->item(0);
999 $authorEl = ActivityUtils::child($item, ActivityObject::AUTHOR, ActivityObject::POSTEROUS);
1000 if (!empty($authorEl)) {
1001 $obj = ActivityObject::fromPosterousAuthor($authorEl);
1002 // Posterous has multiple authors per feed, and multiple feeds
1003 // per author. We check if this is the "main" feed for this author.
1004 if (array_key_exists('profileurl', $hints) &&
1005 !empty($obj->poco) &&
1006 common_url_to_nickname($hints['profileurl']) == $obj->poco->preferredUsername) {
1007 return self::ensureActivityObjectProfile($obj, $hints);
1012 // @fixme we should check whether this feed has elements
1013 // with different <author> or <dc:creator> elements, and... I dunno.
1014 // Do something about that.
1016 $obj = ActivityObject::fromRssChannel($feedEl);
1018 return self::ensureActivityObjectProfile($obj, $hints);
1022 * Download and update given avatar image
1024 * @param string $url
1025 * @throws Exception in various failure cases
1027 protected function updateAvatar($url)
1029 if ($url == $this->avatar) {
1030 // We've already got this one.
1033 if (!common_valid_http_url($url)) {
1034 throw new ServerException(sprintf(_m("Invalid avatar URL %s."), $url));
1037 if ($this->isGroup()) {
1038 $self = $this->localGroup();
1040 $self = $this->localProfile();
1043 throw new ServerException(sprintf(
1044 _m("Tried to update avatar for unsaved remote profile %s."),
1048 // @fixme this should be better encapsulated
1049 // ripped from oauthstore.php (for old OMB client)
1050 $temp_filename = tempnam(sys_get_temp_dir(), 'listener_avatar');
1051 if (!copy($url, $temp_filename)) {
1052 throw new ServerException(sprintf(_m("Unable to fetch avatar from %s."), $url));
1055 if ($this->isGroup()) {
1056 $id = $this->group_id;
1058 $id = $this->profile_id;
1060 // @fixme should we be using different ids?
1061 $imagefile = new ImageFile($id, $temp_filename);
1062 $filename = Avatar::filename($id,
1063 image_type_to_extension($imagefile->type),
1065 common_timestamp());
1066 rename($temp_filename, Avatar::path($filename));
1067 // @fixme hardcoded chmod is lame, but seems to be necessary to
1068 // keep from accidentally saving images from command-line (queues)
1069 // that can't be read from web server, which causes hard-to-notice
1070 // problems later on:
1072 // http://status.net/open-source/issues/2663
1073 chmod(Avatar::path($filename), 0644);
1075 $self->setOriginal($filename);
1077 $orig = clone($this);
1078 $this->avatar = $url;
1079 $this->update($orig);
1083 * Pull avatar URL from ActivityObject or profile hints
1085 * @param ActivityObject $object
1086 * @param array $hints
1087 * @return mixed URL string or false
1090 protected static function getActivityObjectAvatar($object, $hints=array())
1092 if ($object->avatarLinks) {
1094 // Take the exact-size avatar, or the largest avatar, or the first avatar if all sizeless
1095 foreach ($object->avatarLinks as $avatar) {
1096 if ($avatar->width == AVATAR_PROFILE_SIZE && $avatar->height = AVATAR_PROFILE_SIZE) {
1101 if (!$best || $avatar->width > $best->width) {
1106 } else if (array_key_exists('avatar', $hints)) {
1107 return $hints['avatar'];
1113 * Get an appropriate avatar image source URL, if available.
1115 * @param ActivityObject $actor
1116 * @param DOMElement $feed
1120 protected static function getAvatar($actor, $feed)
1124 if ($actor->avatar) {
1125 $url = trim($actor->avatar);
1128 // Check <atom:logo> and <atom:icon> on the feed
1129 $els = $feed->childNodes();
1130 if ($els && $els->length) {
1131 for ($i = 0; $i < $els->length; $i++) {
1132 $el = $els->item($i);
1133 if ($el->namespaceURI == Activity::ATOM) {
1134 if (empty($url) && $el->localName == 'logo') {
1135 $url = trim($el->textContent);
1138 if (empty($icon) && $el->localName == 'icon') {
1139 // Use as a fallback
1140 $icon = trim($el->textContent);
1145 if ($icon && !$url) {
1150 $opts = array('allowed_schemes' => array('http', 'https'));
1151 if (Validate::uri($url, $opts)) {
1155 return common_path('plugins/OStatus/images/96px-Feed-icon.svg.png');
1159 * Fetch, or build if necessary, an Ostatus_profile for the actor
1160 * in a given Activity Streams activity.
1161 * This should never return null -- you will either get an object or
1162 * an exception will be thrown.
1164 * @param Activity $activity
1165 * @param string $feeduri if we already know the canonical feed URI!
1166 * @param string $salmonuri if we already know the salmon return channel URI
1167 * @return Ostatus_profile
1171 public static function ensureActorProfile($activity, $hints=array())
1173 return self::ensureActivityObjectProfile($activity->actor, $hints);
1177 * Fetch, or build if necessary, an Ostatus_profile for the profile
1178 * in a given Activity Streams object (can be subject, actor, or object).
1179 * This should never return null -- you will either get an object or
1180 * an exception will be thrown.
1182 * @param ActivityObject $object
1183 * @param array $hints additional discovery information passed from higher levels
1184 * @return Ostatus_profile
1188 public static function ensureActivityObjectProfile($object, $hints=array())
1190 $profile = self::getActivityObjectProfile($object);
1192 $profile->updateFromActivityObject($object, $hints);
1194 $profile = self::createActivityObjectProfile($object, $hints);
1200 * @param Activity $activity
1201 * @return mixed matching Ostatus_profile or false if none known
1202 * @throws ServerException if feed info invalid
1204 public static function getActorProfile($activity)
1206 return self::getActivityObjectProfile($activity->actor);
1210 * @param ActivityObject $activity
1211 * @return mixed matching Ostatus_profile or false if none known
1212 * @throws ServerException if feed info invalid
1214 protected static function getActivityObjectProfile($object)
1216 $uri = self::getActivityObjectProfileURI($object);
1217 return Ostatus_profile::staticGet('uri', $uri);
1221 * Get the identifier URI for the remote entity described
1222 * by this ActivityObject. This URI is *not* guaranteed to be
1223 * a resolvable HTTP/HTTPS URL.
1225 * @param ActivityObject $object
1227 * @throws ServerException if feed info invalid
1229 protected static function getActivityObjectProfileURI($object)
1232 if (ActivityUtils::validateUri($object->id)) {
1237 // If the id is missing or invalid (we've seen feeds mistakenly listing
1238 // things like local usernames in that field) then we'll use the profile
1239 // page link, if valid.
1240 if ($object->link && common_valid_http_url($object->link)) {
1241 return $object->link;
1243 throw new ServerException("No author ID URI found.");
1247 * @fixme validate stuff somewhere
1251 * Create local ostatus_profile and profile/user_group entries for
1252 * the provided remote user or group.
1253 * This should never return null -- you will either get an object or
1254 * an exception will be thrown.
1256 * @param ActivityObject $object
1257 * @param array $hints
1259 * @return Ostatus_profile
1261 protected static function createActivityObjectProfile($object, $hints=array())
1263 $homeuri = $object->id;
1267 common_log(LOG_DEBUG, __METHOD__ . " empty actor profile URI: " . var_export($activity, true));
1268 throw new Exception("No profile URI");
1271 $user = User::staticGet('uri', $homeuri);
1273 // @todo i18n FIXME: add i18n.
1274 throw new Exception("Local user can't be referenced as remote.");
1277 if (OStatusPlugin::localGroupFromUrl($homeuri)) {
1278 // @todo i18n FIXME: add i18n.
1279 throw new Exception("Local group can't be referenced as remote.");
1282 if (array_key_exists('feedurl', $hints)) {
1283 $feeduri = $hints['feedurl'];
1285 $discover = new FeedDiscovery();
1286 $feeduri = $discover->discoverFromURL($homeuri);
1289 if (array_key_exists('salmon', $hints)) {
1290 $salmonuri = $hints['salmon'];
1293 $discover = new FeedDiscovery();
1294 $discover->discoverFromFeedURL($hints['feedurl']);
1296 $salmonuri = $discover->getAtomLink(Salmon::NS_REPLIES);
1299 if (array_key_exists('hub', $hints)) {
1300 $huburi = $hints['hub'];
1303 $discover = new FeedDiscovery();
1304 $discover->discoverFromFeedURL($hints['feedurl']);
1306 $huburi = $discover->getHubLink();
1309 if (!$huburi && !common_config('feedsub', 'fallback_hub')) {
1310 // We can only deal with folks with a PuSH hub
1311 throw new FeedSubNoHubException();
1314 $oprofile = new Ostatus_profile();
1316 $oprofile->uri = $homeuri;
1317 $oprofile->feeduri = $feeduri;
1318 $oprofile->salmonuri = $salmonuri;
1320 $oprofile->created = common_sql_now();
1321 $oprofile->modified = common_sql_now();
1323 if ($object->type == ActivityObject::PERSON) {
1324 $profile = new Profile();
1325 $profile->created = common_sql_now();
1326 self::updateProfile($profile, $object, $hints);
1328 $oprofile->profile_id = $profile->insert();
1329 if (!$oprofile->profile_id) {
1330 // @todo i18n FIXME: add i18n.
1331 throw new ServerException("Can't save local profile.");
1334 $group = new User_group();
1335 $group->uri = $homeuri;
1336 $group->created = common_sql_now();
1337 self::updateGroup($group, $object, $hints);
1339 $oprofile->group_id = $group->insert();
1340 if (!$oprofile->group_id) {
1341 // @todo i18n FIXME: add i18n.
1342 throw new ServerException("Can't save local profile.");
1346 $ok = $oprofile->insert();
1349 // @todo i18n FIXME: add i18n.
1350 throw new ServerException("Can't save OStatus profile.");
1353 $avatar = self::getActivityObjectAvatar($object, $hints);
1357 $oprofile->updateAvatar($avatar);
1358 } catch (Exception $ex) {
1359 // Profile is saved, but Avatar is messed up. We're
1360 // just going to continue.
1361 common_log(LOG_WARNING, "Exception saving OStatus profile avatar: ". $ex->getMessage());
1369 * Save any updated profile information to our local copy.
1370 * @param ActivityObject $object
1371 * @param array $hints
1373 public function updateFromActivityObject($object, $hints=array())
1375 if ($this->isGroup()) {
1376 $group = $this->localGroup();
1377 self::updateGroup($group, $object, $hints);
1379 $profile = $this->localProfile();
1380 self::updateProfile($profile, $object, $hints);
1382 $avatar = self::getActivityObjectAvatar($object, $hints);
1385 $this->updateAvatar($avatar);
1386 } catch (Exception $ex) {
1387 common_log(LOG_WARNING, "Exception saving OStatus profile avatar: " . $ex->getMessage());
1392 protected static function updateProfile($profile, $object, $hints=array())
1394 $orig = clone($profile);
1396 $profile->nickname = self::getActivityObjectNickname($object, $hints);
1398 if (!empty($object->title)) {
1399 $profile->fullname = $object->title;
1400 } else if (array_key_exists('fullname', $hints)) {
1401 $profile->fullname = $hints['fullname'];
1404 if (!empty($object->link)) {
1405 $profile->profileurl = $object->link;
1406 } else if (array_key_exists('profileurl', $hints)) {
1407 $profile->profileurl = $hints['profileurl'];
1408 } else if (Validate::uri($object->id, array('allowed_schemes' => array('http', 'https')))) {
1409 $profile->profileurl = $object->id;
1412 $profile->bio = self::getActivityObjectBio($object, $hints);
1413 $profile->location = self::getActivityObjectLocation($object, $hints);
1414 $profile->homepage = self::getActivityObjectHomepage($object, $hints);
1416 if (!empty($object->geopoint)) {
1417 $location = ActivityContext::locationFromPoint($object->geopoint);
1418 if (!empty($location)) {
1419 $profile->lat = $location->lat;
1420 $profile->lon = $location->lon;
1424 // @fixme tags/categories
1425 // @todo tags from categories
1428 common_log(LOG_DEBUG, "Updating OStatus profile $profile->id from remote info $object->id: " . var_export($object, true) . var_export($hints, true));
1429 $profile->update($orig);
1433 protected static function updateGroup($group, $object, $hints=array())
1435 $orig = clone($group);
1437 $group->nickname = self::getActivityObjectNickname($object, $hints);
1438 $group->fullname = $object->title;
1440 if (!empty($object->link)) {
1441 $group->mainpage = $object->link;
1442 } else if (array_key_exists('profileurl', $hints)) {
1443 $group->mainpage = $hints['profileurl'];
1446 // @todo tags from categories
1447 $group->description = self::getActivityObjectBio($object, $hints);
1448 $group->location = self::getActivityObjectLocation($object, $hints);
1449 $group->homepage = self::getActivityObjectHomepage($object, $hints);
1452 common_log(LOG_DEBUG, "Updating OStatus group $group->id from remote info $object->id: " . var_export($object, true) . var_export($hints, true));
1453 $group->update($orig);
1457 protected static function getActivityObjectHomepage($object, $hints=array())
1460 $poco = $object->poco;
1462 if (!empty($poco)) {
1463 $url = $poco->getPrimaryURL();
1464 if ($url && $url->type == 'homepage') {
1465 $homepage = $url->value;
1469 // @todo Try for a another PoCo URL?
1474 protected static function getActivityObjectLocation($object, $hints=array())
1478 if (!empty($object->poco) &&
1479 isset($object->poco->address->formatted)) {
1480 $location = $object->poco->address->formatted;
1481 } else if (array_key_exists('location', $hints)) {
1482 $location = $hints['location'];
1485 if (!empty($location)) {
1486 if (mb_strlen($location) > 255) {
1487 $location = mb_substr($note, 0, 255 - 3) . ' … ';
1491 // @todo Try to find location some othe way? Via goerss point?
1496 protected static function getActivityObjectBio($object, $hints=array())
1500 if (!empty($object->poco)) {
1501 $note = $object->poco->note;
1502 } else if (array_key_exists('bio', $hints)) {
1503 $note = $hints['bio'];
1506 if (!empty($note)) {
1507 if (Profile::bioTooLong($note)) {
1508 // XXX: truncate ok?
1509 $bio = mb_substr($note, 0, Profile::maxBio() - 3) . ' … ';
1515 // @todo Try to get bio info some other way?
1520 protected static function getActivityObjectNickname($object, $hints=array())
1522 if ($object->poco) {
1523 if (!empty($object->poco->preferredUsername)) {
1524 return common_nicknamize($object->poco->preferredUsername);
1528 if (!empty($object->nickname)) {
1529 return common_nicknamize($object->nickname);
1532 if (array_key_exists('nickname', $hints)) {
1533 return $hints['nickname'];
1536 // Try the profile url (like foo.example.com or example.com/user/foo)
1538 $profileUrl = ($object->link) ? $object->link : $hints['profileurl'];
1540 if (!empty($profileUrl)) {
1541 $nickname = self::nicknameFromURI($profileUrl);
1544 // Try the URI (may be a tag:, http:, acct:, ...
1546 if (empty($nickname)) {
1547 $nickname = self::nicknameFromURI($object->id);
1550 // Try a Webfinger if one was passed (way) down
1552 if (empty($nickname)) {
1553 if (array_key_exists('webfinger', $hints)) {
1554 $nickname = self::nicknameFromURI($hints['webfinger']);
1560 if (empty($nickname)) {
1561 $nickname = common_nicknamize($object->title);
1567 protected static function nicknameFromURI($uri)
1569 preg_match('/(\w+):/', $uri, $matches);
1571 $protocol = $matches[1];
1573 switch ($protocol) {
1576 if (preg_match("/^$protocol:(.*)?@.*\$/", $uri, $matches)) {
1577 return common_canonical_nickname($matches[1]);
1581 return common_url_to_nickname($uri);
1589 * Look up, and if necessary create, an Ostatus_profile for the remote
1590 * entity with the given webfinger address.
1591 * This should never return null -- you will either get an object or
1592 * an exception will be thrown.
1594 * @param string $addr webfinger address
1595 * @return Ostatus_profile
1596 * @throws Exception on error conditions
1597 * @throws OStatusShadowException if this reference would obscure a local user/group
1599 public static function ensureWebfinger($addr)
1601 // First, try the cache
1603 $uri = self::cacheGet(sprintf('ostatus_profile:webfinger:%s', $addr));
1605 if ($uri !== false) {
1606 if (is_null($uri)) {
1607 // Negative cache entry
1608 // @todo i18n FIXME: add i18n.
1609 throw new Exception('Not a valid webfinger address.');
1611 $oprofile = Ostatus_profile::staticGet('uri', $uri);
1612 if (!empty($oprofile)) {
1617 // Try looking it up
1619 $oprofile = Ostatus_profile::staticGet('uri', 'acct:'.$addr);
1621 if (!empty($oprofile)) {
1622 self::cacheSet(sprintf('ostatus_profile:webfinger:%s', $addr), $oprofile->uri);
1626 // Now, try some discovery
1628 $disco = new Discovery();
1631 $xrd = $disco->lookup($addr);
1632 } catch (Exception $e) {
1633 // Save negative cache entry so we don't waste time looking it up again.
1634 // @fixme distinguish temporary failures?
1635 self::cacheSet(sprintf('ostatus_profile:webfinger:%s', $addr), null);
1636 // @todo i18n FIXME: add i18n.
1637 throw new Exception('Not a valid webfinger address.');
1640 $hints = array('webfinger' => $addr);
1642 $dhints = DiscoveryHints::fromXRD($xrd);
1644 $hints = array_merge($hints, $dhints);
1646 // If there's an Hcard, let's grab its info
1648 if (array_key_exists('hcard', $hints)) {
1649 if (!array_key_exists('profileurl', $hints) ||
1650 $hints['hcard'] != $hints['profileurl']) {
1651 $hcardHints = DiscoveryHints::fromHcardUrl($hints['hcard']);
1652 $hints = array_merge($hcardHints, $hints);
1656 // If we got a feed URL, try that
1658 if (array_key_exists('feedurl', $hints)) {
1660 common_log(LOG_INFO, "Discovery on acct:$addr with feed URL " . $hints['feedurl']);
1661 $oprofile = self::ensureFeedURL($hints['feedurl'], $hints);
1662 self::cacheSet(sprintf('ostatus_profile:webfinger:%s', $addr), $oprofile->uri);
1664 } catch (Exception $e) {
1665 common_log(LOG_WARNING, "Failed creating profile from feed URL '$feedUrl': " . $e->getMessage());
1670 // If we got a profile page, try that!
1672 if (array_key_exists('profileurl', $hints)) {
1674 common_log(LOG_INFO, "Discovery on acct:$addr with profile URL $profileUrl");
1675 $oprofile = self::ensureProfileURL($hints['profileurl'], $hints);
1676 self::cacheSet(sprintf('ostatus_profile:webfinger:%s', $addr), $oprofile->uri);
1678 } catch (OStatusShadowException $e) {
1679 // We've ended up with a remote reference to a local user or group.
1680 // @fixme ideally we should be able to say who it was so we can
1681 // go back and refer to it the regular way
1683 } catch (Exception $e) {
1684 common_log(LOG_WARNING, "Failed creating profile from profile URL '$profileUrl': " . $e->getMessage());
1687 // @fixme this means an error discovering from profile page
1688 // may give us a corrupt entry using the webfinger URI, which
1689 // will obscure the correct page-keyed profile later on.
1696 if (array_key_exists('salmon', $hints)) {
1698 $salmonEndpoint = $hints['salmon'];
1700 // An account URL, a salmon endpoint, and a dream? Not much to go
1701 // on, but let's give it a try
1703 $uri = 'acct:'.$addr;
1705 $profile = new Profile();
1707 $profile->nickname = self::nicknameFromUri($uri);
1708 $profile->created = common_sql_now();
1710 if (isset($profileUrl)) {
1711 $profile->profileurl = $profileUrl;
1714 $profile_id = $profile->insert();
1717 common_log_db_error($profile, 'INSERT', __FILE__);
1718 // @todo i18n FIXME: add i18n and use sprintf for parameter.
1719 throw new Exception("Couldn't save profile for '$addr'.");
1722 $oprofile = new Ostatus_profile();
1724 $oprofile->uri = $uri;
1725 $oprofile->salmonuri = $salmonEndpoint;
1726 $oprofile->profile_id = $profile_id;
1727 $oprofile->created = common_sql_now();
1729 if (isset($feedUrl)) {
1730 $profile->feeduri = $feedUrl;
1733 $result = $oprofile->insert();
1736 common_log_db_error($oprofile, 'INSERT', __FILE__);
1737 // @todo i18n FIXME: add i18n and use sprintf for parameter.
1738 throw new Exception("Couldn't save ostatus_profile for '$addr'.");
1741 self::cacheSet(sprintf('ostatus_profile:webfinger:%s', $addr), $oprofile->uri);
1745 // @todo i18n FIXME: add i18n and use sprintf for parameter.
1746 throw new Exception("Couldn't find a valid profile for '$addr'");
1750 * Store the full-length scrubbed HTML of a remote notice to an attachment
1751 * file on our server. We'll link to this at the end of the cropped version.
1753 * @param string $title plaintext for HTML page's title
1754 * @param string $rendered HTML fragment for HTML page's body
1757 function saveHTMLFile($title, $rendered)
1759 $final = sprintf("<!DOCTYPE html>\n" .
1761 '<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">' .
1762 '<title>%s</title>' .
1764 '<body>%s</body></html>',
1765 htmlspecialchars($title),
1768 $filename = File::filename($this->localProfile(),
1769 'ostatus', // ignored?
1772 $filepath = File::path($filename);
1774 file_put_contents($filepath, $final);
1778 $file->filename = $filename;
1779 $file->url = File::url($filename);
1780 $file->size = filesize($filepath);
1781 $file->date = time();
1782 $file->mimetype = 'text/html';
1784 $file_id = $file->insert();
1786 if ($file_id === false) {
1787 common_log_db_error($file, "INSERT", __FILE__);
1788 throw new ServerException(_('Could not store HTML content of long post as file.'));
1794 static function ensureProfileURI($uri)
1798 // First, try to query it
1800 $oprofile = Ostatus_profile::staticGet('uri', $uri);
1802 // If unfound, do discovery stuff
1804 if (empty($oprofile)) {
1805 if (preg_match("/^(\w+)\:(.*)/", $uri, $match)) {
1806 $protocol = $match[1];
1807 switch ($protocol) {
1810 $oprofile = Ostatus_profile::ensureProfileURL($uri);
1815 $oprofile = Ostatus_profile::ensureWebfinger($rest);
1817 common_log("Unrecognized URI protocol for profile: $protocol ($uri)");
1827 * Exception indicating we've got a remote reference to a local user,
1828 * not a remote user!
1830 * If we can ue a local profile after all, it's available as $e->profile.
1832 class OStatusShadowException extends Exception
1837 * @param Profile $profile
1838 * @param string $message
1840 function __construct($profile, $message) {
1841 $this->profile = $profile;
1842 parent::__construct($message);