}
/**
- * Send a PuSH unsubscription request to the hub for this feed.
- * The hub will later send us a confirmation POST to /main/push/callback.
+ * Check if this remote profile has any active local subscriptions, and
+ * if not drop the PuSH subscription feed.
*
* @return bool true on success, false on failure
- * @throws ServerException if feed state is not valid
*/
public function unsubscribe() {
- $feedsub = FeedSub::staticGet('uri', $this->feeduri);
- if (!$feedsub || $feedsub->sub_state == '' || $feedsub->sub_state == 'inactive') {
- // No active PuSH subscription, we can just leave it be.
- return true;
- } else {
- // PuSH subscription is either active or in an indeterminate state.
- // Send an unsubscribe.
- return $feedsub->unsubscribe();
- }
+ $this->garbageCollect();
}
/**
* @return boolean
*/
public function garbageCollect()
+ {
+ $feedsub = FeedSub::staticGet('uri', $this->feeduri);
+ return $feedsub->garbageCollect();
+ }
+
+ /**
+ * Check if this remote profile has any active local subscriptions, so the
+ * PuSH subscription layer can decide if it can drop the feed.
+ *
+ * This gets called via the FeedSubSubscriberCount event when running
+ * FeedSub::garbageCollect().
+ *
+ * @return int
+ */
+ public function subscriberCount()
{
if ($this->isGroup()) {
$members = $this->localGroup()->getMembers(0, 1);
} else {
$count = $this->localProfile()->subscriberCount();
}
- if ($count == 0) {
- common_log(LOG_INFO, "Unsubscribing from now-unused remote feed $this->feeduri");
- $this->unsubscribe();
- return true;
- } else {
- return false;
- }
+ common_log(LOG_INFO, __METHOD__ . " SUB COUNT BEFORE: $count");
+
+ // Other plugins may be piggybacking on OStatus without having
+ // an active group or user-to-user subscription we know about.
+ Event::handle('Ostatus_profileSubscriberCount', array($this, &$count));
+ common_log(LOG_INFO, __METHOD__ . " SUB COUNT AFTER: $count");
+
+ return $count;
}
/**
{
$activity = new Activity($entry, $feed);
+ // @todo process all activity objects
+ switch ($activity->objects[0]->type) {
+ case ActivityObject::ARTICLE:
+ case ActivityObject::BLOGENTRY:
+ case ActivityObject::NOTE:
+ case ActivityObject::STATUS:
+ case ActivityObject::COMMENT:
+ break;
+ default:
+ throw new ClientException("Can't handle that kind of post.");
+ }
+
if ($activity->verb == ActivityVerb::POST) {
$this->processPost($activity, $source);
} else {
// OK here! assume the default
} else if ($actor->id == $this->uri || $actor->link == $this->uri) {
$this->updateFromActivityObject($actor);
- } else {
+ } else if ($actor->id) {
+ // We have an ActivityStreams actor with an explicit ID that doesn't match the feed owner.
+ // This isn't what we expect from mainline OStatus person feeds!
+ // Group feeds go down another path, with different validation.
throw new Exception("Got an actor '{$actor->title}' ({$actor->id}) on single-user feed for {$this->uri}");
+ } else {
+ // Plain <author> without ActivityStreams actor info.
+ // We'll just ignore this info for now and save the update under the feed's identity.
}
$oprofile = $this;
// It's not always an ActivityObject::NOTE, but... let's just say it is.
- $note = $activity->object;
+ $note = $activity->objects[0];
// The id URI will be used as a unique identifier for for the notice,
// protecting against duplicate saves. It isn't required to be a URL;
}
$shortSummary = common_shorten_links($summary);
if (Notice::contentTooLong($shortSummary)) {
- $url = common_shorten_url(common_local_url('attachment',
- array('attachment' => $attachment->id)));
+ $url = common_shorten_url($sourceUrl);
$shortSummary = substr($shortSummary,
0,
Notice::maxContent() - (mb_strlen($url) + 2));
- $shortSummary .= '… ' . $url;
- $content = $shortSummary;
- $rendered = common_render_text($content);
+ $content = $shortSummary . ' ' . $url;
+
+ // We mark up the attachment link specially for the HTML output
+ // so we can fold-out the full version inline.
+ $attachUrl = common_local_url('attachment',
+ array('attachment' => $attachment->id));
+ $rendered = common_render_text($shortSummary) .
+ '<a href="' . htmlspecialchars($attachUrl) .'"'.
+ ' class="attachment more"' .
+ ' title="'. htmlspecialchars(_m('Show more')) . '">' .
+ '…' .
+ '</a>';
}
}
}
/**
+ * Look up and if necessary create an Ostatus_profile for the remote entity
+ * with the given profile page URL. This should never return null -- you
+ * will either get an object or an exception will be thrown.
+ *
* @param string $profile_url
* @return Ostatus_profile
- * @throws FeedSubException
+ * @throws Exception on various error conditions
+ * @throws OStatusShadowException if this reference would obscure a local user/group
*/
public static function ensureProfileURL($profile_url, $hints=array())
$response = $client->get($profile_url);
if (!$response->isOk()) {
- return null;
+ throw new Exception("Could not reach profile page: " . $profile_url);
}
// Check if we have a non-canonical URL
if (!empty($feedurl)) {
$hints['feedurl'] = $feedurl;
-
return self::ensureFeedURL($feedurl, $hints);
}
+
+ throw new Exception("Could not find a feed URL for profile page " . $finalUrl);
}
+ /**
+ * Look up the Ostatus_profile, if present, for a remote entity with the
+ * given profile page URL. Will return null for both unknown and invalid
+ * remote profiles.
+ *
+ * @return mixed Ostatus_profile or null
+ * @throws OStatusShadowException for local profiles
+ */
static function getFromProfileURL($profile_url)
{
$profile = Profile::staticGet('profileurl', $profile_url);
$user = User::staticGet('id', $profile->id);
if (!empty($user)) {
- throw new Exception("'$profile_url' is the profile for local user '{$user->nickname}'.");
+ throw new OStatusShadowException($profile, "'$profile_url' is the profile for local user '{$user->nickname}'.");
}
// Continue discovery; it's a remote profile
return null;
}
+ /**
+ * Look up and if necessary create an Ostatus_profile for remote entity
+ * with the given update feed. This should never return null -- you will
+ * either get an object or an exception will be thrown.
+ *
+ * @return Ostatus_profile
+ * @throws Exception
+ */
public static function ensureFeedURL($feed_url, $hints=array())
{
$discover = new FeedDiscovery();
$feeduri = $discover->discoverFromFeedURL($feed_url);
$hints['feedurl'] = $feeduri;
- $huburi = $discover->getAtomLink('hub');
+ $huburi = $discover->getHubLink();
$hints['hub'] = $huburi;
$salmonuri = $discover->getAtomLink(Salmon::NS_REPLIES);
$hints['salmon'] = $salmonuri;
- if (!$huburi) {
+ if (!$huburi && !common_config('feedsub', 'fallback_hub')) {
// We can only deal with folks with a PuSH hub
throw new FeedSubNoHubException();
}
}
}
+ /**
+ * Look up and, if necessary, create an Ostatus_profile for the remote
+ * profile with the given Atom feed - actually loaded from the feed.
+ * This should never return null -- you will either get an object or
+ * an exception will be thrown.
+ *
+ * @param DOMElement $feedEl root element of a loaded Atom feed
+ * @param array $hints additional discovery information passed from higher levels
+ * @fixme should this be marked public?
+ * @return Ostatus_profile
+ * @throws Exception
+ */
public static function ensureAtomFeed($feedEl, $hints)
{
// Try to get a profile from the feed activity:subject
throw new FeedSubException("Can't find enough profile information to make a feed.");
}
+ /**
+ * Look up and, if necessary, create an Ostatus_profile for the remote
+ * profile with the given RSS feed - actually loaded from the feed.
+ * This should never return null -- you will either get an object or
+ * an exception will be thrown.
+ *
+ * @param DOMElement $feedEl root element of a loaded RSS feed
+ * @param array $hints additional discovery information passed from higher levels
+ * @fixme should this be marked public?
+ * @return Ostatus_profile
+ * @throws Exception
+ */
public static function ensureRssChannel($feedEl, $hints)
{
// Special-case for Posterous. They have some nice metadata in their
$authorEl = ActivityUtils::child($item, ActivityObject::AUTHOR, ActivityObject::POSTEROUS);
if (!empty($authorEl)) {
$obj = ActivityObject::fromPosterousAuthor($authorEl);
- return self::ensureActivityObjectProfile($obj, $hints);
+ // Posterous has multiple authors per feed, and multiple feeds
+ // per author. We check if this is the "main" feed for this author.
+ if (array_key_exists('profileurl', $hints) &&
+ !empty($obj->poco) &&
+ common_url_to_nickname($hints['profileurl']) == $obj->poco->preferredUsername) {
+ return self::ensureActivityObjectProfile($obj, $hints);
+ }
}
}
return;
}
if (!common_valid_http_url($url)) {
- throw new ServerException(_m("Invalid avatar URL %s"), $url);
+ throw new ServerException(sprintf(_m("Invalid avatar URL %s"), $url));
}
if ($this->isGroup()) {
/**
* Fetch, or build if necessary, an Ostatus_profile for the actor
* in a given Activity Streams activity.
+ * This should never return null -- you will either get an object or
+ * an exception will be thrown.
*
* @param Activity $activity
* @param string $feeduri if we already know the canonical feed URI!
* @param string $salmonuri if we already know the salmon return channel URI
* @return Ostatus_profile
+ * @throws Exception
*/
public static function ensureActorProfile($activity, $hints=array())
return self::ensureActivityObjectProfile($activity->actor, $hints);
}
+ /**
+ * Fetch, or build if necessary, an Ostatus_profile for the profile
+ * in a given Activity Streams object (can be subject, actor, or object).
+ * This should never return null -- you will either get an object or
+ * an exception will be thrown.
+ *
+ * @param ActivityObject $object
+ * @param array $hints additional discovery information passed from higher levels
+ * @return Ostatus_profile
+ * @throws Exception
+ */
+
public static function ensureActivityObjectProfile($object, $hints=array())
{
$profile = self::getActivityObjectProfile($object);
/**
* @param Activity $activity
* @return mixed matching Ostatus_profile or false if none known
+ * @throws ServerException if feed info invalid
*/
public static function getActorProfile($activity)
{
return self::getActivityObjectProfile($activity->actor);
}
+ /**
+ * @param ActivityObject $activity
+ * @return mixed matching Ostatus_profile or false if none known
+ * @throws ServerException if feed info invalid
+ */
protected static function getActivityObjectProfile($object)
{
$uri = self::getActivityObjectProfileURI($object);
return Ostatus_profile::staticGet('uri', $uri);
}
- protected static function getActorProfileURI($activity)
- {
- return self::getActivityObjectProfileURI($activity->actor);
- }
-
/**
- * @param Activity $activity
+ * Get the identifier URI for the remote entity described
+ * by this ActivityObject. This URI is *not* guaranteed to be
+ * a resolvable HTTP/HTTPS URL.
+ *
+ * @param ActivityObject $object
* @return string
- * @throws ServerException
+ * @throws ServerException if feed info invalid
*/
protected static function getActivityObjectProfileURI($object)
{
- $opts = array('allowed_schemes' => array('http', 'https'));
- if ($object->id && Validate::uri($object->id, $opts)) {
- return $object->id;
+ if ($object->id) {
+ if (ActivityUtils::validateUri($object->id)) {
+ return $object->id;
+ }
}
- if ($object->link && Validate::uri($object->link, $opts)) {
+
+ // If the id is missing or invalid (we've seen feeds mistakenly listing
+ // things like local usernames in that field) then we'll use the profile
+ // page link, if valid.
+ if ($object->link && common_valid_http_url($object->link)) {
return $object->link;
}
throw new ServerException("No author ID URI found");
/**
* Create local ostatus_profile and profile/user_group entries for
* the provided remote user or group.
+ * This should never return null -- you will either get an object or
+ * an exception will be thrown.
*
* @param ActivityObject $object
* @param array $hints
throw new Exception("No profile URI");
}
- if (OStatusPlugin::localProfileFromUrl($homeuri)) {
+ $user = User::staticGet('uri', $homeuri);
+ if ($user) {
throw new Exception("Local user can't be referenced as remote.");
}
$discover = new FeedDiscovery();
$discover->discoverFromFeedURL($hints['feedurl']);
}
- $huburi = $discover->getAtomLink('hub');
+ $huburi = $discover->getHubLink();
}
- if (!$huburi) {
+ if (!$huburi && !common_config('feedsub', 'fallback_hub')) {
// We can only deal with folks with a PuSH hub
throw new FeedSubNoHubException();
}
$ok = $oprofile->insert();
- if ($ok) {
- $avatar = self::getActivityObjectAvatar($object, $hints);
- if ($avatar) {
+ if (!$ok) {
+ throw new ServerException("Can't save OStatus profile");
+ }
+
+ $avatar = self::getActivityObjectAvatar($object, $hints);
+
+ if ($avatar) {
+ try {
$oprofile->updateAvatar($avatar);
+ } catch (Exception $ex) {
+ // Profile is saved, but Avatar is messed up. We're
+ // just going to continue.
+ common_log(LOG_WARNING, "Exception saving OStatus profile avatar: ". $ex->getMessage());
}
- return $oprofile;
- } else {
- throw new ServerException("Can't save OStatus profile");
}
+
+ return $oprofile;
}
/**
}
$avatar = self::getActivityObjectAvatar($object, $hints);
if ($avatar) {
- $this->updateAvatar($avatar);
+ try {
+ $this->updateAvatar($avatar);
+ } catch (Exception $ex) {
+ common_log(LOG_WARNING, "Exception saving OStatus profile avatar: " . $ex->getMessage());
+ }
}
}
}
/**
+ * Look up, and if necessary create, an Ostatus_profile for the remote
+ * entity with the given webfinger address.
+ * This should never return null -- you will either get an object or
+ * an exception will be thrown.
+ *
* @param string $addr webfinger address
* @return Ostatus_profile
* @throws Exception on error conditions
+ * @throws OStatusShadowException if this reference would obscure a local user/group
*/
public static function ensureWebfinger($addr)
{
$oprofile = self::ensureProfileURL($hints['profileurl'], $hints);
self::cacheSet(sprintf('ostatus_profile:webfinger:%s', $addr), $oprofile->uri);
return $oprofile;
+ } catch (OStatusShadowException $e) {
+ // We've ended up with a remote reference to a local user or group.
+ // @fixme ideally we should be able to say who it was so we can
+ // go back and refer to it the regular way
+ throw $e;
} catch (Exception $e) {
common_log(LOG_WARNING, "Failed creating profile from profile URL '$profileUrl': " . $e->getMessage());
// keep looking
+ //
+ // @fixme this means an error discovering from profile page
+ // may give us a corrupt entry using the webfinger URI, which
+ // will obscure the correct page-keyed profile later on.
}
}
throw new Exception("Couldn't find a valid profile for '$addr'");
}
+ /**
+ * Store the full-length scrubbed HTML of a remote notice to an attachment
+ * file on our server. We'll link to this at the end of the cropped version.
+ *
+ * @param string $title plaintext for HTML page's title
+ * @param string $rendered HTML fragment for HTML page's body
+ * @return File
+ */
function saveHTMLFile($title, $rendered)
{
- $final = sprintf("<!DOCTYPE html>\n<html><head><title>%s</title></head>".
- '<body><div>%s</div></body></html>',
+ $final = sprintf("<!DOCTYPE html>\n" .
+ '<html><head>' .
+ '<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">' .
+ '<title>%s</title>' .
+ '</head>' .
+ '<body>%s</body></html>',
htmlspecialchars($title),
$rendered);
return $file;
}
}
+
+/**
+ * Exception indicating we've got a remote reference to a local user,
+ * not a remote user!
+ *
+ * If we can ue a local profile after all, it's available as $e->profile.
+ */
+class OStatusShadowException extends Exception
+{
+ public $profile;
+
+ /**
+ * @param Profile $profile
+ * @param string $message
+ */
+ function __construct($profile, $message) {
+ $this->profile = $profile;
+ parent::__construct($message);
+ }
+}
+
projects / quix0rs-gnu-social.git / blobdiff