OStatus: prep work for sending notifications on sub/unsub/join/leave/favorite/unfavorite via Salmon; needs to be completed and hooked up once feed gen is fixed.
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Brion Vibber
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@ -755,6 +755,14 @@ class Profile extends Memcached_DataObject
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return !empty($notice);
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}
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/**
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* Returns an XML string fragment with limited profile information
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* as an Atom <author> element.
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*
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* Assumes that Atom has been previously set up as the base namespace.
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*
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* @return string
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*/
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function asAtomAuthor()
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{
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$xs = new XMLStringer(true);
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@ -767,11 +775,33 @@ class Profile extends Memcached_DataObject
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return $xs->getString();
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}
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/**
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* Returns an XML string fragment with profile information as an
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* Activity Streams <activity:actor> element.
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*
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* Assumes that 'activity' namespace has been previously defined.
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*
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* @return string
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*/
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function asActivityActor()
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{
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return $this->asActivityNoun('actor');
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}
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/**
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* Returns an XML string fragment with profile information as an
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* Activity Streams noun object with the given element type.
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*
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* Assumes that 'activity' namespace has been previously defined.
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*
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* @param string $element one of 'actor', 'subject', 'object', 'target'
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* @return string
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*/
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function asActivityNoun($element)
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{
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$xs = new XMLStringer(true);
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$xs->elementStart('activity:actor');
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$xs->elementStart('activity:' . $element);
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$xs->element(
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'activity:object-type',
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null,
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@ -799,7 +829,7 @@ class Profile extends Memcached_DataObject
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''
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);
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$xs->elementEnd('activity:actor');
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$xs->elementEnd('activity:' . $element);
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return $xs->getString();
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}
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@ -299,6 +299,71 @@ class Ostatus_profile extends Memcached_DataObject
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}
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}
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/**
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* Returns an XML string fragment with profile information as an
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* Activity Streams noun object with the given element type.
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*
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* Assumes that 'activity' namespace has been previously defined.
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*
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* @param string $element one of 'actor', 'subject', 'object', 'target'
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* @return string
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*/
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function asActivityNoun($element)
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{
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$xs = new XMLStringer(true);
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$avatarHref = Avatar::defaultImage(AVATAR_PROFILE_SIZE);
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$avatarType = 'image/png';
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if ($this->isGroup()) {
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$type = 'http://activitystrea.ms/schema/1.0/group';
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$self = $this->localGroup();
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// @fixme put a standard getAvatar() interface on groups too
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if ($self->homepage_logo) {
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$avatarHref = $self->homepage_logo;
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$map = array('png' => 'image/png',
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'jpg' => 'image/jpeg',
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'jpeg' => 'image/jpeg',
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'gif' => 'image/gif');
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$extension = pathinfo(parse_url($avatarHref, PHP_URL_PATH), PATHINFO_EXTENSION);
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if (isset($map[$extension])) {
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$avatarType = $map[$extension];
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}
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}
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} else {
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$type = 'http://activitystrea.ms/schema/1.0/person';
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$self = $this->localProfile();
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$avatar = $self->getAvatar(AVATAR_PROFILE_SIZE);
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if ($avatar) {
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$avatarHref = $avatar->
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$avatarType = $avatar->mediatype;
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}
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}
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$xs->elementStart('activity:' . $element);
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$xs->element(
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'activity:object-type',
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null,
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$type
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);
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$xs->element(
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'id',
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null,
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$this->homeuri); // ?
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$xs->element('title', null, $self->getBestName());
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$xs->element(
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'link', array(
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'type' => $avatarType,
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'href' => $avatarHref
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),
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''
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);
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$xs->elementEnd('activity:' . $element);
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return $xs->getString();
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}
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/**
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* Damn dirty hack!
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*/
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@ -397,7 +462,7 @@ class Ostatus_profile extends Memcached_DataObject
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}
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/**
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* Send an unsubscription request to the hub for this feed.
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* Send a PuSH unsubscription request to the hub for this feed.
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* The hub will later send us a confirmation POST to /main/push/callback.
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*
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* @return bool true on success, false on failure
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@ -406,6 +471,92 @@ class Ostatus_profile extends Memcached_DataObject
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return $this->subscribe('unsubscribe');
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}
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/**
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* Send an Activity Streams notification to the remote Salmon endpoint,
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* if so configured.
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*
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* @param Profile $actor
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* @param $verb eg Activity::SUBSCRIBE or Activity::JOIN
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* @param $object object of the action; if null, the remote entity itself is assumed
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*/
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public function notify(Profile $actor, $verb, $object=null)
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{
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if ($object == null) {
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$object = $this;
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}
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if ($this->salmonuri) {
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$text = 'update'; // @fixme
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$id = 'tag:' . common_config('site', 'server') .
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':' . $verb .
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':' . $actor->id .
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':' . time(); // @fixme
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$entry = new Atom10Entry();
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$entry->elementStart('entry');
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$entry->element('id', null, $id);
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$entry->element('title', null, $text);
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$entry->element('summary', null, $text);
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$entry->element('published', null, common_date_w3dtf());
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$entry->element('activity:verb', null, $verb);
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$entry->raw($profile->asAtomAuthor());
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$entry->raw($profile->asActivityActor());
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$entry->raw($object->asActivityNoun('object'));
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$entry->elmentEnd('entry');
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$feed = $this->atomFeed($actor);
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$feed->initFeed();
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$feed->addEntry($entry);
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$feed->renderEntries();
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$feed->endFeed();
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$xml = $feed->getString();
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common_log(LOG_INFO, "Posting to Salmon endpoint $salmon: $xml");
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$salmon = new Salmon(); // ?
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$salmon->post($this->salmonuri, $xml);
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}
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}
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function getBestName()
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{
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if ($this->isGroup()) {
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return $this->localGroup()->getBestName();
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} else {
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return $this->localProfile()->getBestName();
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}
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}
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function atomFeed($actor)
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{
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$feed = new Atom10Feed();
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// @fixme should these be set up somewhere else?
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$feed->addNamespace('activity', 'http://activitystrea.ms/spec/1.0/');
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$feed->addNamesapce('thr', 'http://purl.org/syndication/thread/1.0');
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$feed->addNamespace('georss', 'http://www.georss.org/georss');
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$feed->addNamespace('ostatus', 'http://ostatus.org/schema/1.0');
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$taguribase = common_config('integration', 'taguri');
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$feed->setId("tag:{$taguribase}:UserTimeline:{$actor->id}"); // ???
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$feed->setTitle($actor->getBestName() . ' timeline'); // @fixme
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$feed->setUpdated(time());
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$feed->setPublished(time());
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$feed->addLink(common_url('ApiTimelineUser',
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array('id' => $actor->id,
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'type' => 'atom')),
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array('rel' => 'self',
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'type' => 'application/atom+xml'));
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$feed->addLink(common_url('userbyid',
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array('id' => $actor->id)),
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array('rel' => 'alternate',
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'type' => 'text/html'));
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return $feed;
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}
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/**
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* Read and post notices for updates from the feed.
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* Currently assumes that all items in the feed are new,
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