forked from GNUsocial/gnu-social
		
	
		
			
				
	
	
		
			949 lines
		
	
	
		
			30 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
			
		
		
	
	
			949 lines
		
	
	
		
			30 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
| <?php
 | |
| /**
 | |
|  * StatusNet, the distributed open-source microblogging tool
 | |
|  *
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|  * An activity
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|  *
 | |
|  * PHP version 5
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|  *
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|  * LICENCE: This program is free software: you can redistribute it and/or modify
 | |
|  * it under the terms of the GNU Affero General Public License as published by
 | |
|  * the Free Software Foundation, either version 3 of the License, or
 | |
|  * (at your option) any later version.
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|  *
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|  * This program is distributed in the hope that it will be useful,
 | |
|  * but WITHOUT ANY WARRANTY; without even the implied warranty of
 | |
|  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 | |
|  * GNU Affero General Public License for more details.
 | |
|  *
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|  * You should have received a copy of the GNU Affero General Public License
 | |
|  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 | |
|  *
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|  * @category  Feed
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|  * @package   StatusNet
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|  * @author    Evan Prodromou <evan@status.net>
 | |
|  * @author    Zach Copley <zach@status.net>
 | |
|  * @copyright 2010 StatusNet, Inc.
 | |
|  * @license   http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPLv3
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|  * @link      http://status.net/
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|  */
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| 
 | |
| if (!defined('STATUSNET')) {
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|     exit(1);
 | |
| }
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| 
 | |
| require_once(INSTALLDIR.'/lib/activitystreamjsondocument.php');
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| 
 | |
| /**
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|  * A noun-ish thing in the activity universe
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|  *
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|  * The activity streams spec talks about activity objects, while also having
 | |
|  * a tag activity:object, which is in fact an activity object. Aaaaaah!
 | |
|  *
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|  * This is just a thing in the activity universe. Can be the subject, object,
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|  * or indirect object (target!) of an activity verb. Rotten name, and I'm
 | |
|  * propagating it. *sigh*
 | |
|  *
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|  * @category  OStatus
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|  * @package   StatusNet
 | |
|  * @author    Evan Prodromou <evan@status.net>
 | |
|  * @copyright 2010 StatusNet, Inc.
 | |
|  * @license   http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPLv3
 | |
|  * @link      http://status.net/
 | |
|  */
 | |
| class ActivityObject
 | |
| {
 | |
|     const ARTICLE   = 'http://activitystrea.ms/schema/1.0/article';
 | |
|     const BLOGENTRY = 'http://activitystrea.ms/schema/1.0/blog-entry';
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|     const NOTE      = 'http://activitystrea.ms/schema/1.0/note';
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|     const STATUS    = 'http://activitystrea.ms/schema/1.0/status';
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|     const FILE      = 'http://activitystrea.ms/schema/1.0/file';
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|     const PHOTO     = 'http://activitystrea.ms/schema/1.0/photo';
 | |
|     const ALBUM     = 'http://activitystrea.ms/schema/1.0/photo-album';
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|     const PLAYLIST  = 'http://activitystrea.ms/schema/1.0/playlist';
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|     const VIDEO     = 'http://activitystrea.ms/schema/1.0/video';
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|     const AUDIO     = 'http://activitystrea.ms/schema/1.0/audio';
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|     const BOOKMARK  = 'http://activitystrea.ms/schema/1.0/bookmark';
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|     const PERSON    = 'http://activitystrea.ms/schema/1.0/person';
 | |
|     const GROUP     = 'http://activitystrea.ms/schema/1.0/group';
 | |
|     const _LIST     = 'http://activitystrea.ms/schema/1.0/list'; // LIST is reserved
 | |
|     const PLACE     = 'http://activitystrea.ms/schema/1.0/place';
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|     const COMMENT   = 'http://activitystrea.ms/schema/1.0/comment';
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|     // ^^^^^^^^^^ tea!
 | |
|     const ACTIVITY = 'http://activitystrea.ms/schema/1.0/activity';
 | |
|     const SERVICE   = 'http://activitystrea.ms/schema/1.0/service';
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|     const IMAGE     = 'http://activitystrea.ms/schema/1.0/image';
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|     const COLLECTION = 'http://activitystrea.ms/schema/1.0/collection';
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|     const APPLICATION = 'http://activitystrea.ms/schema/1.0/application';
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| 
 | |
|     // Atom elements we snarf
 | |
| 
 | |
|     const TITLE   = 'title';
 | |
|     const SUMMARY = 'summary';
 | |
|     const ID      = 'id';
 | |
|     const SOURCE  = 'source';
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| 
 | |
|     const NAME  = 'name';
 | |
|     const URI   = 'uri';
 | |
|     const EMAIL = 'email';
 | |
| 
 | |
|     const POSTEROUS   = 'http://posterous.com/help/rss/1.0';
 | |
|     const AUTHOR      = 'author';
 | |
|     const USERIMAGE   = 'userImage';
 | |
|     const PROFILEURL  = 'profileUrl';
 | |
|     const NICKNAME    = 'nickName';
 | |
|     const DISPLAYNAME = 'displayName';
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| 
 | |
|     public $element;
 | |
|     public $type;
 | |
|     public $id;
 | |
|     public $title;
 | |
|     public $summary;
 | |
|     public $content;
 | |
|     public $owner;
 | |
|     public $link;
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|     public $selfLink;   // think APP (Atom Publishing Protocol)
 | |
|     public $source;
 | |
|     public $avatarLinks = array();
 | |
|     public $geopoint;
 | |
|     public $poco;
 | |
|     public $displayName;
 | |
| 
 | |
|     // @todo move this stuff to it's own PHOTO activity object
 | |
|     const MEDIA_DESCRIPTION = 'description';
 | |
| 
 | |
|     public $thumbnail;
 | |
|     public $largerImage;
 | |
|     public $description;
 | |
|     public $extra = array();
 | |
| 
 | |
|     public $stream;
 | |
| 
 | |
|     /**
 | |
|      * Constructor
 | |
|      *
 | |
|      * This probably needs to be refactored
 | |
|      * to generate a local class (ActivityPerson, ActivityFile, ...)
 | |
|      * based on the object type.
 | |
|      *
 | |
|      * @param DOMElement $element DOM thing to turn into an Activity thing
 | |
|      */
 | |
|     function __construct($element = null)
 | |
|     {
 | |
|         if (empty($element)) {
 | |
|             return;
 | |
|         }
 | |
| 
 | |
|         $this->element = $element;
 | |
| 
 | |
|         $this->geopoint = $this->_childContent(
 | |
|             $element,
 | |
|             ActivityContext::POINT,
 | |
|             ActivityContext::GEORSS
 | |
|         );
 | |
| 
 | |
|         if ($element->tagName == 'author') {
 | |
|             $this->_fromAuthor($element);
 | |
|         } else if ($element->tagName == 'item') {
 | |
|             $this->_fromRssItem($element);
 | |
|         } else {
 | |
|             $this->_fromAtomEntry($element);
 | |
|         }
 | |
| 
 | |
|         // Some per-type attributes...
 | |
|         if ($this->type == self::PERSON || $this->type == self::GROUP) {
 | |
|             $this->displayName = $this->title;
 | |
| 
 | |
|             $photos = ActivityUtils::getLinks($element, 'photo');
 | |
|             if (count($photos)) {
 | |
|                 foreach ($photos as $link) {
 | |
|                     $this->avatarLinks[] = new AvatarLink($link);
 | |
|                 }
 | |
|             } else {
 | |
|                 $avatars = ActivityUtils::getLinks($element, 'avatar');
 | |
|                 foreach ($avatars as $link) {
 | |
|                     $this->avatarLinks[] = new AvatarLink($link);
 | |
|                 }
 | |
|             }
 | |
| 
 | |
|             $this->poco = new PoCo($element);
 | |
|         }
 | |
| 
 | |
|         if ($this->type == self::PHOTO) {
 | |
| 
 | |
|             $this->thumbnail   = ActivityUtils::getLink($element, 'preview');
 | |
|             $this->largerImage = ActivityUtils::getLink($element, 'enclosure');
 | |
| 
 | |
|             $this->description = ActivityUtils::childContent(
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|                 $element,
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|                 ActivityObject::MEDIA_DESCRIPTION,
 | |
|                 Activity::MEDIA
 | |
|             );
 | |
|         }
 | |
|         if ($this->type == self::_LIST) {
 | |
|             $owner = ActivityUtils::child($this->element, Activity::AUTHOR, Activity::SPEC);
 | |
|             $this->owner = new ActivityObject($owner);
 | |
|         }
 | |
|     }
 | |
| 
 | |
|     private function _fromAuthor($element)
 | |
|     {
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|         $this->type = $this->_childContent($element,
 | |
|                                            Activity::OBJECTTYPE,
 | |
|                                            Activity::SPEC);
 | |
| 
 | |
|         if (empty($this->type)) {
 | |
|             $this->type = self::PERSON; // XXX: is this fair?
 | |
|         }
 | |
| 
 | |
| 
 | |
|         // Start with <poco::displayName>
 | |
| 
 | |
|         $this->title = ActivityUtils::childContent($element, PoCo::DISPLAYNAME, PoCo::NS);
 | |
| 
 | |
|         // try falling back to <atom:title>
 | |
| 
 | |
|         if (empty($this->title)) {
 | |
|             $title = ActivityUtils::childHtmlContent($element, self::TITLE);
 | |
| 
 | |
|             if (!empty($title)) {
 | |
|                 $this->title = common_strip_html($title);
 | |
|             }
 | |
|         }
 | |
| 
 | |
|         // fall back to <atom:name> as a last resort
 | |
| 
 | |
|         if (empty($this->title)) {
 | |
|             $this->title = $this->_childContent($element, self::NAME);
 | |
|         }
 | |
| 
 | |
|         // start with <atom:id>
 | |
| 
 | |
|         $this->id = $this->_childContent($element, self::ID);
 | |
| 
 | |
|         // fall back to <atom:uri>
 | |
| 
 | |
|         if (empty($this->id)) {
 | |
|             $this->id = $this->_childContent($element, self::URI);
 | |
|         }
 | |
| 
 | |
|         // fall further back to <atom:email>
 | |
| 
 | |
|         if (empty($this->id)) {
 | |
|             $email = $this->_childContent($element, self::EMAIL);
 | |
|             if (!empty($email)) {
 | |
|                 // XXX: acct: ?
 | |
|                 $this->id = 'mailto:'.$email;
 | |
|             }
 | |
|         }
 | |
| 
 | |
|         $this->link = ActivityUtils::getPermalink($element);
 | |
| 
 | |
|         // fall finally back to <link rel=alternate>
 | |
| 
 | |
|         if (empty($this->id) && !empty($this->link)) { // fallback if there's no ID
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|             $this->id = $this->link;
 | |
|         }
 | |
|     }
 | |
| 
 | |
|     private function _fromAtomEntry($element)
 | |
|     {
 | |
|         $this->type = $this->_childContent($element, Activity::OBJECTTYPE,
 | |
|                                            Activity::SPEC);
 | |
| 
 | |
|         if (empty($this->type)) {
 | |
|             $this->type = ActivityObject::NOTE;
 | |
|         }
 | |
| 
 | |
|         $this->summary = ActivityUtils::childHtmlContent($element, self::SUMMARY);
 | |
|         $this->content = ActivityUtils::getContent($element);
 | |
| 
 | |
|         // We don't like HTML in our titles, although it's technically allowed
 | |
|         $this->title = common_strip_html(ActivityUtils::childHtmlContent($element, self::TITLE));
 | |
| 
 | |
|         $this->source  = $this->_getSource($element);
 | |
| 
 | |
|         $this->link = ActivityUtils::getPermalink($element);
 | |
|         $this->selfLink = ActivityUtils::getSelfLink($element);
 | |
| 
 | |
|         $this->id = $this->_childContent($element, self::ID);
 | |
| 
 | |
|         if (empty($this->id) && !empty($this->link)) { // fallback if there's no ID
 | |
|             $this->id = $this->link;
 | |
|         }
 | |
|     }
 | |
| 
 | |
|     // @todo FIXME: rationalize with Activity::_fromRssItem()
 | |
|     private function _fromRssItem($item)
 | |
|     {
 | |
|         if (empty($this->type)) {
 | |
|             $this->type = ActivityObject::NOTE;
 | |
|         }
 | |
| 
 | |
|         $this->title = ActivityUtils::childContent($item, ActivityObject::TITLE, Activity::RSS);
 | |
| 
 | |
|         $contentEl = ActivityUtils::child($item, ActivityUtils::CONTENT, Activity::CONTENTNS);
 | |
| 
 | |
|         if (!empty($contentEl)) {
 | |
|             $this->content = htmlspecialchars_decode($contentEl->textContent, ENT_QUOTES);
 | |
|         } else {
 | |
|             $descriptionEl = ActivityUtils::child($item, Activity::DESCRIPTION, Activity::RSS);
 | |
|             if (!empty($descriptionEl)) {
 | |
|                 $this->content = htmlspecialchars_decode($descriptionEl->textContent, ENT_QUOTES);
 | |
|             }
 | |
|         }
 | |
| 
 | |
|         $this->link = ActivityUtils::childContent($item, ActivityUtils::LINK, Activity::RSS);
 | |
| 
 | |
|         $guidEl = ActivityUtils::child($item, Activity::GUID, Activity::RSS);
 | |
| 
 | |
|         if (!empty($guidEl)) {
 | |
|             $this->id = $guidEl->textContent;
 | |
| 
 | |
|             if ($guidEl->hasAttribute('isPermaLink') && $guidEl->getAttribute('isPermaLink') != 'false') {
 | |
|                 // overwrites <link>
 | |
|                 $this->link = $this->id;
 | |
|             }
 | |
|         }
 | |
|     }
 | |
| 
 | |
|     public static function fromRssAuthor($el)
 | |
|     {
 | |
|         $text = $el->textContent;
 | |
| 
 | |
|         if (preg_match('/^(.*?) \((.*)\)$/', $text, $match)) {
 | |
|             $email = $match[1];
 | |
|             $name = $match[2];
 | |
|         } else if (preg_match('/^(.*?) <(.*)>$/', $text, $match)) {
 | |
|             $name = $match[1];
 | |
|             $email = $match[2];
 | |
|         } else if (preg_match('/.*@.*/', $text)) {
 | |
|             $email = $text;
 | |
|             $name = null;
 | |
|         } else {
 | |
|             $name = $text;
 | |
|             $email = null;
 | |
|         }
 | |
| 
 | |
|         // Not really enough info
 | |
| 
 | |
|         $obj = new ActivityObject();
 | |
| 
 | |
|         $obj->element = $el;
 | |
| 
 | |
|         $obj->type  = ActivityObject::PERSON;
 | |
|         $obj->title = $name;
 | |
| 
 | |
|         if (!empty($email)) {
 | |
|             $obj->id = 'mailto:'.$email;
 | |
|         }
 | |
| 
 | |
|         return $obj;
 | |
|     }
 | |
| 
 | |
|     public static function fromDcCreator($el)
 | |
|     {
 | |
|         // Not really enough info
 | |
| 
 | |
|         $text = $el->textContent;
 | |
| 
 | |
|         $obj = new ActivityObject();
 | |
| 
 | |
|         $obj->element = $el;
 | |
| 
 | |
|         $obj->title = $text;
 | |
|         $obj->type  = ActivityObject::PERSON;
 | |
| 
 | |
|         return $obj;
 | |
|     }
 | |
| 
 | |
|     public static function fromRssChannel($el)
 | |
|     {
 | |
|         $obj = new ActivityObject();
 | |
| 
 | |
|         $obj->element = $el;
 | |
| 
 | |
|         $obj->type = ActivityObject::PERSON; // @fixme guess better
 | |
| 
 | |
|         $obj->title = ActivityUtils::childContent($el, ActivityObject::TITLE, Activity::RSS);
 | |
|         $obj->link  = ActivityUtils::childContent($el, ActivityUtils::LINK, Activity::RSS);
 | |
|         $obj->id    = ActivityUtils::getLink($el, Activity::SELF);
 | |
| 
 | |
|         if (empty($obj->id)) {
 | |
|             $obj->id = $obj->link;
 | |
|         }
 | |
| 
 | |
|         $desc = ActivityUtils::childContent($el, Activity::DESCRIPTION, Activity::RSS);
 | |
| 
 | |
|         if (!empty($desc)) {
 | |
|             $obj->content = htmlspecialchars_decode($desc, ENT_QUOTES);
 | |
|         }
 | |
| 
 | |
|         $imageEl = ActivityUtils::child($el, Activity::IMAGE, Activity::RSS);
 | |
| 
 | |
|         if (!empty($imageEl)) {
 | |
|             $url = ActivityUtils::childContent($imageEl, Activity::URL, Activity::RSS);
 | |
|             $al = new AvatarLink();
 | |
|             $al->url = $url;
 | |
|             $obj->avatarLinks[] = $al;
 | |
|         }
 | |
| 
 | |
|         return $obj;
 | |
|     }
 | |
| 
 | |
|     public static function fromPosterousAuthor($el)
 | |
|     {
 | |
|         $obj = new ActivityObject();
 | |
| 
 | |
|         $obj->type = ActivityObject::PERSON; // @fixme any others...?
 | |
| 
 | |
|         $userImage = ActivityUtils::childContent($el, self::USERIMAGE, self::POSTEROUS);
 | |
| 
 | |
|         if (!empty($userImage)) {
 | |
|             $al = new AvatarLink();
 | |
|             $al->url = $userImage;
 | |
|             $obj->avatarLinks[] = $al;
 | |
|         }
 | |
| 
 | |
|         $obj->link = ActivityUtils::childContent($el, self::PROFILEURL, self::POSTEROUS);
 | |
|         $obj->id   = $obj->link;
 | |
| 
 | |
|         $obj->poco = new PoCo();
 | |
| 
 | |
|         $obj->poco->preferredUsername = ActivityUtils::childContent($el, self::NICKNAME, self::POSTEROUS);
 | |
|         $obj->poco->displayName       = ActivityUtils::childContent($el, self::DISPLAYNAME, self::POSTEROUS);
 | |
| 
 | |
|         $obj->title = $obj->poco->displayName;
 | |
| 
 | |
|         return $obj;
 | |
|     }
 | |
| 
 | |
|     private function _childContent($element, $tag, $namespace=ActivityUtils::ATOM)
 | |
|     {
 | |
|         return ActivityUtils::childContent($element, $tag, $namespace);
 | |
|     }
 | |
| 
 | |
|     // Try to get a unique id for the source feed
 | |
| 
 | |
|     private function _getSource($element)
 | |
|     {
 | |
|         $sourceEl = ActivityUtils::child($element, 'source');
 | |
| 
 | |
|         if (empty($sourceEl)) {
 | |
|             return null;
 | |
|         } else {
 | |
|             $href = ActivityUtils::getLink($sourceEl, 'self');
 | |
|             if (!empty($href)) {
 | |
|                 return $href;
 | |
|             } else {
 | |
|                 return ActivityUtils::childContent($sourceEl, 'id');
 | |
|             }
 | |
|         }
 | |
|     }
 | |
| 
 | |
|     static function fromGroup(User_group $group)
 | |
|     {
 | |
|         $object = new ActivityObject();
 | |
| 
 | |
|         if (Event::handle('StartActivityObjectFromGroup', array($group, &$object))) {
 | |
| 
 | |
|             $object->type   = ActivityObject::GROUP;
 | |
|             $object->id     = $group->getUri();
 | |
|             $object->title  = $group->getBestName();
 | |
|             $object->link   = $group->getUri();
 | |
| 
 | |
|             $object->avatarLinks[] = AvatarLink::fromFilename($group->homepage_logo,
 | |
|                                                               AVATAR_PROFILE_SIZE);
 | |
| 
 | |
|             $object->avatarLinks[] = AvatarLink::fromFilename($group->stream_logo,
 | |
|                                                               AVATAR_STREAM_SIZE);
 | |
| 
 | |
|             $object->avatarLinks[] = AvatarLink::fromFilename($group->mini_logo,
 | |
|                                                               AVATAR_MINI_SIZE);
 | |
| 
 | |
|             $object->poco = PoCo::fromGroup($group);
 | |
|             Event::handle('EndActivityObjectFromGroup', array($group, &$object));
 | |
|         }
 | |
| 
 | |
|         return $object;
 | |
|     }
 | |
| 
 | |
|     static function fromPeopletag($ptag)
 | |
|     {
 | |
|         $object = new ActivityObject();
 | |
|         if (Event::handle('StartActivityObjectFromPeopletag', array($ptag, &$object))) {
 | |
|             $object->type    = ActivityObject::_LIST;
 | |
| 
 | |
|             $object->id      = $ptag->getUri();
 | |
|             $object->title   = $ptag->tag;
 | |
|             $object->summary = $ptag->description;
 | |
|             $object->link    = $ptag->homeUrl();
 | |
|             $object->owner   = Profile::getKV('id', $ptag->tagger);
 | |
|             $object->poco    = PoCo::fromProfile($object->owner);
 | |
|             Event::handle('EndActivityObjectFromPeopletag', array($ptag, &$object));
 | |
|         }
 | |
|         return $object;
 | |
|     }
 | |
| 
 | |
|     static function fromFile(File $file)
 | |
|     {
 | |
|         $object = new ActivityObject();
 | |
| 
 | |
|         if (Event::handle('StartActivityObjectFromFile', array($file, &$object))) {
 | |
| 
 | |
|             $object->type = self::mimeTypeToObjectType($file->mimetype);
 | |
|             $object->id   = TagURI::mint(sprintf("file:%d", $file->id));
 | |
|             $object->link = common_local_url('attachment', array('attachment' => $file->id));
 | |
| 
 | |
|             if ($file->title) {
 | |
|                 $object->title = $file->title;
 | |
|             }
 | |
| 
 | |
|             if ($file->date) {
 | |
|                 $object->date = $file->date;
 | |
|             }
 | |
| 
 | |
|             try {
 | |
|                 $thumbnail = $file->getThumbnail();
 | |
|                 $object->thumbnail = $thumbnail;
 | |
|             } catch (UseFileAsThumbnailException $e) {
 | |
|                 $object->thumbnail = null;
 | |
|             } catch (UnsupportedMediaException $e) {
 | |
|                 $object->thumbnail = null;
 | |
|             }
 | |
| 
 | |
|             switch (self::canonicalType($object->type)) {
 | |
|             case 'image':
 | |
|                 $object->largerImage = $file->getUrl();
 | |
|                 break;
 | |
|             case 'video':
 | |
|             case 'audio':
 | |
|                 $object->stream = $file->getUrl();
 | |
|                 break;
 | |
|             }
 | |
| 
 | |
|             Event::handle('EndActivityObjectFromFile', array($file, &$object));
 | |
|         }
 | |
| 
 | |
|         return $object;
 | |
|     }
 | |
| 
 | |
|     static function fromNoticeSource(Notice_source $source)
 | |
|     {
 | |
|         $object = new ActivityObject();
 | |
|         $wellKnown = array('web', 'xmpp', 'mail', 'omb', 'system', 'api', 'ostatus',
 | |
|                            'activity', 'feed', 'mirror', 'twitter', 'facebook');
 | |
| 
 | |
|         if (Event::handle('StartActivityObjectFromNoticeSource', array($source, &$object))) {
 | |
|             $object->type = ActivityObject::APPLICATION;
 | |
| 
 | |
|             if (in_array($source->code, $wellKnown)) {
 | |
|                 // We use one ID for all well-known StatusNet sources
 | |
|                 $object->id = "tag:status.net,2009:notice-source:".$source->code;
 | |
|             } else if ($source->url) {
 | |
|                 // They registered with an URL
 | |
|                 $object->id = $source->url;
 | |
|             } else {
 | |
|                 // Locally-registered, no URL
 | |
|                 $object->id = TagURI::mint("notice-source:".$source->code);
 | |
|             }
 | |
| 
 | |
|             if ($source->url) {
 | |
|                 $object->link = $source->url;
 | |
|             }
 | |
| 
 | |
|             if ($source->name) {
 | |
|                 $object->title = $source->name;
 | |
|             } else {
 | |
|                 $object->title = $source->code;
 | |
|             }
 | |
| 
 | |
|             if ($source->created) {
 | |
|                 $object->date = $source->created;
 | |
|             }
 | |
|             
 | |
|             $object->extra[] = array('status_net', array('source_code' => $source->code));
 | |
| 
 | |
|             Event::handle('EndActivityObjectFromNoticeSource', array($source, &$object));
 | |
|         }
 | |
| 
 | |
|         return $object;
 | |
|     }
 | |
| 
 | |
|     static function fromMessage(Message $message)
 | |
|     {
 | |
|         $object = new ActivityObject();
 | |
| 
 | |
|         if (Event::handle('StartActivityObjectFromMessage', array($message, &$object))) {
 | |
| 
 | |
|             $object->type    = ActivityObject::NOTE;
 | |
|             $object->id      = ($message->uri) ? $message->uri : (($message->url) ? $message->url : TagURI::mint(sprintf("message:%d", $message->id)));
 | |
|             $object->content = $message->rendered;
 | |
|             $object->date    = $message->created;
 | |
| 
 | |
|             if ($message->url) {
 | |
|                 $object->link = $message->url;
 | |
|             } else {
 | |
|                 $object->link = common_local_url('showmessage', array('message' => $message->id));
 | |
|             }
 | |
| 
 | |
|             $object->extra[] = array('status_net', array('message_id' => $message->id));
 | |
|             
 | |
|             Event::handle('EndActivityObjectFromMessage', array($message, &$object));
 | |
|         }
 | |
| 
 | |
|         return $object;
 | |
|     }
 | |
| 
 | |
|     function outputTo($xo, $tag='activity:object')
 | |
|     {
 | |
|         if (!empty($tag)) {
 | |
|             $xo->elementStart($tag);
 | |
|         }
 | |
| 
 | |
|         if (Event::handle('StartActivityObjectOutputAtom', array($this, $xo))) {
 | |
|             $xo->element('activity:object-type', null, $this->type);
 | |
| 
 | |
|             // <author> uses URI
 | |
| 
 | |
|             if ($tag == 'author') {
 | |
|                 $xo->element(self::URI, null, $this->id);
 | |
|             } else {
 | |
|                 $xo->element(self::ID, null, $this->id);
 | |
|             }
 | |
| 
 | |
|             if (!empty($this->title)) {
 | |
|                 $name = common_xml_safe_str($this->title);
 | |
|                 if ($tag == 'author') {
 | |
|                     // XXX: Backward compatibility hack -- atom:name should contain
 | |
|                     // full name here, instead of nickname, i.e.: $name. Change
 | |
|                     // this in the next version.
 | |
|                     $xo->element(self::NAME, null, $this->poco->preferredUsername);
 | |
|                 } else {
 | |
|                     $xo->element(self::TITLE, null, $name);
 | |
|                 }
 | |
|             }
 | |
| 
 | |
|             if (!empty($this->summary)) {
 | |
|                 $xo->element(
 | |
|                     self::SUMMARY,
 | |
|                     null,
 | |
|                     common_xml_safe_str($this->summary)
 | |
|                 );
 | |
|             }
 | |
| 
 | |
|             if (!empty($this->content)) {
 | |
|                 // XXX: assuming HTML content here
 | |
|                 $xo->element(
 | |
|                     ActivityUtils::CONTENT,
 | |
|                     array('type' => 'html'),
 | |
|                     common_xml_safe_str($this->content)
 | |
|                 );
 | |
|             }
 | |
| 
 | |
|             if (!empty($this->link)) {
 | |
|                 $xo->element(
 | |
|                     'link',
 | |
|                     array(
 | |
|                         'rel' => 'alternate',
 | |
|                         'type' => 'text/html',
 | |
|                         'href' => $this->link
 | |
|                     ),
 | |
|                     null
 | |
|                 );
 | |
|             }
 | |
| 
 | |
|             if (!empty($this->selfLink)) {
 | |
|                 $xo->element(
 | |
|                     'link',
 | |
|                     array(
 | |
|                         'rel' => 'self',
 | |
|                         'type' => 'application/atom+xml',
 | |
|                         'href' => $this->selfLink
 | |
|                     ),
 | |
|                     null
 | |
|                 );
 | |
|             }
 | |
| 
 | |
|             if(!empty($this->owner)) {
 | |
|                 $owner = $this->owner->asActivityNoun(self::AUTHOR);
 | |
|                 $xo->raw($owner);
 | |
|             }
 | |
| 
 | |
|             if ($this->type == ActivityObject::PERSON
 | |
|                 || $this->type == ActivityObject::GROUP) {
 | |
| 
 | |
|                 foreach ($this->avatarLinks as $alink) {
 | |
|                     $xo->element('link',
 | |
|                             array(
 | |
|                                 'rel'          => 'avatar',
 | |
|                                 'type'         => $alink->type,
 | |
|                                 'media:width'  => $alink->width,
 | |
|                                 'media:height' => $alink->height,
 | |
|                                 'href'         => $alink->url,
 | |
|                                 ),
 | |
|                             null);
 | |
|                 }
 | |
|             }
 | |
| 
 | |
|             if (!empty($this->geopoint)) {
 | |
|                 $xo->element(
 | |
|                     'georss:point',
 | |
|                     null,
 | |
|                     $this->geopoint
 | |
|                 );
 | |
|             }
 | |
| 
 | |
|             if (!empty($this->poco)) {
 | |
|                 $this->poco->outputTo($xo);
 | |
|             }
 | |
| 
 | |
|             // @fixme there's no way here to make a tree; elements can only contain plaintext
 | |
|             // @fixme these may collide with JSON extensions
 | |
|             foreach ($this->extra as $el) {
 | |
|                 list($extraTag, $attrs, $content) = array_pad($el, 3, null);
 | |
|                 $xo->element($extraTag, $attrs, $content);
 | |
|             }
 | |
| 
 | |
|             Event::handle('EndActivityObjectOutputAtom', array($this, $xo));
 | |
|         }
 | |
| 
 | |
|         if (!empty($tag)) {
 | |
|             $xo->elementEnd($tag);
 | |
|         }
 | |
| 
 | |
|         return;
 | |
|     }
 | |
| 
 | |
|     function asString($tag='activity:object')
 | |
|     {
 | |
|         $xs = new XMLStringer(true);
 | |
| 
 | |
|         $this->outputTo($xs, $tag);
 | |
| 
 | |
|         return $xs->getString();
 | |
|     }
 | |
| 
 | |
|     /*
 | |
|      * Returns an array based on this Activity Object suitable for
 | |
|      * encoding as JSON.
 | |
|      *
 | |
|      * @return array $object the activity object array
 | |
|      */
 | |
| 
 | |
|     function asArray()
 | |
|     {
 | |
|         $object = array();
 | |
| 
 | |
|         if (Event::handle('StartActivityObjectOutputJson', array($this, &$object))) {
 | |
|             // XXX: attachments are added by Activity
 | |
| 
 | |
|             // author (Add object for author? Could be useful for repeats.)
 | |
| 
 | |
|             // content (Add rendered version of the notice?)
 | |
| 
 | |
|             // downstreamDuplicates
 | |
| 
 | |
|             // id
 | |
| 
 | |
|             if ($this->id) {
 | |
|                 $object['id'] = $this->id;
 | |
|             } else if ($this->link) {
 | |
|                 $object['id'] = $this->link;
 | |
|             }
 | |
| 
 | |
|             if ($this->type == ActivityObject::PERSON
 | |
|                 || $this->type == ActivityObject::GROUP) {
 | |
| 
 | |
|                 // displayName
 | |
|                 $object['displayName'] = $this->title;
 | |
| 
 | |
|                 // XXX: Not sure what the best avatar is to use for the
 | |
|                 // author's "image". For now, I'm using the large size.
 | |
| 
 | |
|                 $imgLink          = null;
 | |
|                 $avatarMediaLinks = array();
 | |
| 
 | |
|                 foreach ($this->avatarLinks as $a) {
 | |
| 
 | |
|                     // Make a MediaLink for every other Avatar
 | |
|                     $avatar = new ActivityStreamsMediaLink(
 | |
|                         $a->url,
 | |
|                         $a->width,
 | |
|                         $a->height,
 | |
|                         $a->type,
 | |
|                         'avatar'
 | |
|                     );
 | |
| 
 | |
|                     // Find the big avatar to use as the "image"
 | |
|                     if ($a->height == AVATAR_PROFILE_SIZE) {
 | |
|                         $imgLink = $avatar;
 | |
|                     }
 | |
| 
 | |
|                     $avatarMediaLinks[] = $avatar->asArray();
 | |
|                 }
 | |
| 
 | |
|                 if (!array_key_exists('status_net', $object)) {
 | |
|                     $object['status_net'] = array();
 | |
|                 }
 | |
| 
 | |
|                 $object['status_net']['avatarLinks'] = $avatarMediaLinks; // extension
 | |
| 
 | |
|                 // image
 | |
|                 if (!empty($imgLink)) {
 | |
|                     $object['image']  = $imgLink->asArray();
 | |
|                 }
 | |
|             }
 | |
| 
 | |
|             // objectType
 | |
|             //
 | |
|             // We can probably use the whole schema URL here but probably the
 | |
|             // relative simple name is easier to parse
 | |
| 
 | |
|             $object['objectType'] = self::canonicalType($this->type);
 | |
| 
 | |
|             // summary
 | |
|             $object['summary'] = $this->summary;
 | |
| 
 | |
|             // content, usually rendered HTML
 | |
|             $object['content'] = $this->content;
 | |
| 
 | |
|             // published (probably don't need. Might be useful for repeats.)
 | |
| 
 | |
|             // updated (probably don't need this)
 | |
| 
 | |
|             // TODO: upstreamDuplicates
 | |
| 
 | |
|             if ($this->link) {
 | |
|                 $object['url'] = $this->link;
 | |
|             }
 | |
| 
 | |
|             /* Extensions */
 | |
|             // @fixme these may collide with XML extensions
 | |
|             // @fixme multiple tags of same name will overwrite each other
 | |
|             // @fixme text content from XML extensions will be lost
 | |
| 
 | |
|             foreach ($this->extra as $e) {
 | |
|                 list($objectName, $props, $txt) = array_pad($e, 3, null);
 | |
|                 if (!empty($objectName)) {
 | |
|                     $parts = explode(":", $objectName);
 | |
|                     if (count($parts) == 2 && $parts[0] == "statusnet") {
 | |
|                         if (!array_key_exists('status_net', $object)) {
 | |
|                             $object['status_net'] = array();
 | |
|                         }
 | |
|                         $object['status_net'][$parts[1]] = $props;
 | |
|                     } else {
 | |
|                         $object[$objectName] = $props;
 | |
|                     }
 | |
|                 }
 | |
|             }
 | |
| 
 | |
|             if (!empty($this->geopoint)) {
 | |
| 
 | |
|                 list($lat, $lon) = explode(' ', $this->geopoint);
 | |
| 
 | |
|                 if (!empty($lat) && !empty($lon)) {
 | |
|                     $object['location'] = array(
 | |
|                         'objectType' => 'place',
 | |
|                         'position' => sprintf("%+02.5F%+03.5F/", $lat, $lon),
 | |
|                         'lat' => $lat,
 | |
|                         'lon' => $lon
 | |
|                     );
 | |
| 
 | |
|                     $loc = Location::fromLatLon((float)$lat, (float)$lon);
 | |
| 
 | |
|                     if ($loc) {
 | |
|                         $name = $loc->getName();
 | |
| 
 | |
|                         if ($name) {
 | |
|                             $object['location']['displayName'] = $name;
 | |
|                         }
 | |
|                         $url = $loc->getURL();
 | |
| 
 | |
|                         if ($url) {
 | |
|                             $object['location']['url'] = $url;
 | |
|                         }
 | |
|                     }
 | |
|                 }
 | |
|             }
 | |
| 
 | |
|             if (!empty($this->poco)) {
 | |
|                 $object['portablecontacts_net'] = array_filter($this->poco->asArray());
 | |
|             }
 | |
| 
 | |
|             if (!empty($this->thumbnail)) {
 | |
|                 if (is_string($this->thumbnail)) {
 | |
|                     $object['image'] = array('url' => $this->thumbnail);
 | |
|                 } else {
 | |
|                     $object['image'] = array('url' => $this->thumbnail->getUrl());
 | |
|                     if ($this->thumbnail->width) {
 | |
|                         $object['image']['width'] = $this->thumbnail->width;
 | |
|                     }
 | |
|                     if ($this->thumbnail->height) {
 | |
|                         $object['image']['height'] = $this->thumbnail->height;
 | |
|                     }
 | |
|                 }
 | |
|             }
 | |
| 
 | |
|             switch (self::canonicalType($this->type)) {
 | |
|             case 'image':
 | |
|                 if (!empty($this->largerImage)) {
 | |
|                     $object['fullImage'] = array('url' => $this->largerImage);
 | |
|                 }
 | |
|                 break;
 | |
|             case 'audio':
 | |
|             case 'video':
 | |
|                 if (!empty($this->stream)) {
 | |
|                     $object['stream'] = array('url' => $this->stream);
 | |
|                 }
 | |
|                 break;
 | |
|             }
 | |
| 
 | |
|             Event::handle('EndActivityObjectOutputJson', array($this, &$object));
 | |
|         }
 | |
|         return array_filter($object);
 | |
|     }
 | |
| 
 | |
|     public function getIdentifiers() {
 | |
|         $ids = array();
 | |
|         foreach(array('id', 'link', 'url') as $id) {
 | |
|             if (isset($this->$id)) {
 | |
|                 $ids[] = $this->$id;
 | |
|             }
 | |
|         }
 | |
|         return array_unique($ids);
 | |
|     }
 | |
| 
 | |
|     static function canonicalType($type) {
 | |
|         return ActivityUtils::resolveUri($type, true);
 | |
|     }
 | |
| 
 | |
|     static function mimeTypeToObjectType($mimeType) {
 | |
|         $ot = null;
 | |
| 
 | |
|         // Default
 | |
| 
 | |
|         if (empty($mimeType)) {
 | |
|             return self::FILE;
 | |
|         }
 | |
| 
 | |
|         $parts = explode('/', $mimeType);
 | |
| 
 | |
|         switch ($parts[0]) {
 | |
|         case 'image':
 | |
|             $ot = self::IMAGE;
 | |
|             break;
 | |
|         case 'audio':
 | |
|             $ot = self::AUDIO;
 | |
|             break;
 | |
|         case 'video':
 | |
|             $ot = self::VIDEO;
 | |
|             break;
 | |
|         default:
 | |
|             $ot = self::FILE;
 | |
|         }
 | |
| 
 | |
|         return $ot;
 | |
|     }
 | |
| }
 |