3 * StatusNet, the distributed open-source microblogging tool
9 * LICENCE: This program is free software: you can redistribute it and/or modify
10 * it under the terms of the GNU Affero General Public License as published by
11 * the Free Software Foundation, either version 3 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU Affero General Public License for more details.
19 * You should have received a copy of the GNU Affero General Public License
20 * along with this program. If not, see <http://www.gnu.org/licenses/>.
24 * @author Evan Prodromou <evan@status.net>
25 * @author Zach Copley <zach@status.net>
26 * @copyright 2010 StatusNet, Inc.
27 * @license http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPLv3
28 * @link http://status.net/
31 if (!defined('STATUSNET')) {
39 const VALUE = 'value';
40 const PRIMARY = 'primary';
46 function __construct($type, $value, $primary = false)
49 $this->value = $value;
50 $this->primary = $primary;
55 $xs = new XMLStringer(true);
56 $xs->elementStart('poco:urls');
57 $xs->element('poco:type', null, $this->type);
58 $xs->element('poco:value', null, $this->value);
59 if (!empty($this->primary)) {
60 $xs->element('poco:primary', null, 'true');
62 $xs->elementEnd('poco:urls');
63 return $xs->getString();
69 const ADDRESS = 'address';
70 const FORMATTED = 'formatted';
74 // @todo Other address fields
78 if (!empty($this->formatted)) {
79 $xs = new XMLStringer(true);
80 $xs->elementStart('poco:address');
81 $xs->element('poco:formatted', null, $this->formatted);
82 $xs->elementEnd('poco:address');
83 return $xs->getString();
92 const NS = 'http://portablecontacts.net/spec/1.0';
94 const USERNAME = 'preferredUsername';
95 const DISPLAYNAME = 'displayName';
98 public $preferredUsername;
102 public $urls = array();
104 function __construct($element = null)
106 if (empty($element)) {
110 $this->preferredUsername = ActivityUtils::childContent(
116 $this->displayName = ActivityUtils::childContent(
122 $this->note = ActivityUtils::childContent(
128 $this->address = $this->_getAddress($element);
129 $this->urls = $this->_getURLs($element);
132 private function _getURLs($element)
134 $urlEls = $element->getElementsByTagnameNS(self::NS, PoCoURL::URLS);
137 foreach ($urlEls as $urlEl) {
139 $type = ActivityUtils::childContent(
145 $value = ActivityUtils::childContent(
151 $primary = ActivityUtils::childContent(
159 if (isset($primary) && $primary == 'true') {
163 // @todo check to make sure a primary hasn't already been added
165 array_push($urls, new PoCoURL($type, $value, $isPrimary));
170 private function _getAddress($element)
172 $addressEl = ActivityUtils::child(
174 PoCoAddress::ADDRESS,
178 if (!empty($addressEl)) {
179 $formatted = ActivityUtils::childContent(
181 PoCoAddress::FORMATTED,
185 if (!empty($formatted)) {
186 $address = new PoCoAddress();
187 $address->formatted = $formatted;
195 function fromProfile($profile)
197 if (empty($profile)) {
203 $poco->preferredUsername = $profile->nickname;
204 $poco->displayName = $profile->getBestName();
206 $poco->note = $profile->bio;
208 $paddy = new PoCoAddress();
209 $paddy->formatted = $profile->location;
210 $poco->address = $paddy;
212 if (!empty($profile->homepage)) {
226 function fromGroup($group)
234 $poco->preferredUsername = $group->nickname;
235 $poco->displayName = $group->getBestName();
237 $poco->note = $group->description;
239 $paddy = new PoCoAddress();
240 $paddy->formatted = $group->location;
241 $poco->address = $paddy;
243 if (!empty($group->homepage)) {
257 function getPrimaryURL()
259 foreach ($this->urls as $url) {
268 $xs = new XMLStringer(true);
270 'poco:preferredUsername',
272 $this->preferredUsername
281 if (!empty($this->note)) {
282 $xs->element('poco:note', null, $this->note);
285 if (!empty($this->address)) {
286 $xs->raw($this->address->asString());
289 foreach ($this->urls as $url) {
290 $xs->raw($url->asString());
293 return $xs->getString();
298 * Utilities for turning DOMish things into Activityish things
300 * Some common functions that I didn't have the bandwidth to try to factor
301 * into some kind of reasonable superclass, so just dumped here. Might
302 * be useful to have an ActivityObject parent class or something.
306 * @author Evan Prodromou <evan@status.net>
307 * @copyright 2010 StatusNet, Inc.
308 * @license http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPLv3
309 * @link http://status.net/
314 const ATOM = 'http://www.w3.org/2005/Atom';
321 const CONTENT = 'content';
325 * Get the permalink for an Activity object
327 * @param DOMElement $element A DOM element
329 * @return string related link, if any
332 static function getPermalink($element)
334 return self::getLink($element, 'alternate', 'text/html');
338 * Get the permalink for an Activity object
340 * @param DOMElement $element A DOM element
342 * @return string related link, if any
345 static function getLink(DOMNode $element, $rel, $type=null)
347 $links = $element->getElementsByTagnameNS(self::ATOM, self::LINK);
349 foreach ($links as $link) {
351 $linkRel = $link->getAttribute(self::REL);
352 $linkType = $link->getAttribute(self::TYPE);
354 if ($linkRel == $rel &&
355 (is_null($type) || $linkType == $type)) {
356 return $link->getAttribute(self::HREF);
363 static function getLinks(DOMNode $element, $rel, $type=null)
365 $links = $element->getElementsByTagnameNS(self::ATOM, self::LINK);
368 foreach ($links as $link) {
370 $linkRel = $link->getAttribute(self::REL);
371 $linkType = $link->getAttribute(self::TYPE);
373 if ($linkRel == $rel &&
374 (is_null($type) || $linkType == $type)) {
383 * Gets the first child element with the given tag
385 * @param DOMElement $element element to pick at
386 * @param string $tag tag to look for
387 * @param string $namespace Namespace to look under
389 * @return DOMElement found element or null
392 static function child(DOMNode $element, $tag, $namespace=self::ATOM)
394 $els = $element->childNodes;
395 if (empty($els) || $els->length == 0) {
398 for ($i = 0; $i < $els->length; $i++) {
399 $el = $els->item($i);
400 if ($el->localName == $tag && $el->namespaceURI == $namespace) {
408 * Grab the text content of a DOM element child of the current element
410 * @param DOMElement $element Element whose children we examine
411 * @param string $tag Tag to look up
412 * @param string $namespace Namespace to use, defaults to Atom
414 * @return string content of the child
417 static function childContent(DOMNode $element, $tag, $namespace=self::ATOM)
419 $el = self::child($element, $tag, $namespace);
424 return $el->textContent;
429 * Get the content of an atom:entry-like object
431 * @param DOMElement $element The element to examine.
433 * @return string unencoded HTML content of the element, like "This -< is <b>HTML</b>."
435 * @todo handle remote content
436 * @todo handle embedded XML mime types
437 * @todo handle base64-encoded non-XML and non-text mime types
440 static function getContent($element)
442 $contentEl = ActivityUtils::child($element, self::CONTENT);
444 if (!empty($contentEl)) {
446 $src = $contentEl->getAttribute(self::SRC);
449 throw new ClientException(_("Can't handle remote content yet."));
452 $type = $contentEl->getAttribute(self::TYPE);
454 // slavishly following http://atompub.org/rfc4287.html#rfc.section.4.1.3.3
456 if ($type == 'text') {
457 return $contentEl->textContent;
458 } else if ($type == 'html') {
459 $text = $contentEl->textContent;
460 return htmlspecialchars_decode($text, ENT_QUOTES);
461 } else if ($type == 'xhtml') {
462 $divEl = ActivityUtils::child($contentEl, 'div');
466 $doc = $divEl->ownerDocument;
468 $children = $divEl->childNodes;
470 for ($i = 0; $i < $children->length; $i++) {
471 $child = $children->item($i);
472 $text .= $doc->saveXML($child);
475 } else if (in_array(array('text/xml', 'application/xml'), $type) ||
476 preg_match('#(+|/)xml$#', $type)) {
477 throw new ClientException(_("Can't handle embedded XML content yet."));
478 } else if (strncasecmp($type, 'text/', 5)) {
479 return $contentEl->textContent;
481 throw new ClientException(_("Can't handle embedded Base64 content yet."));
487 // XXX: Arg! This wouldn't be necessary if we used Avatars conistently
496 function __construct($element=null)
499 // @fixme use correct namespaces
500 $this->url = $element->getAttribute('href');
501 $this->type = $element->getAttribute('type');
502 $width = $element->getAttribute('media:width');
503 if ($width != null) {
504 $this->width = intval($width);
506 $height = $element->getAttribute('media:height');
507 if ($height != null) {
508 $this->height = intval($height);
513 static function fromAvatar($avatar)
515 if (empty($avatar)) {
518 $alink = new AvatarLink();
519 $alink->type = $avatar->mediatype;
520 $alink->height = $avatar->height;
521 $alink->width = $avatar->width;
522 $alink->url = $avatar->displayUrl();
526 static function fromFilename($filename, $size)
528 $alink = new AvatarLink();
529 $alink->url = $filename;
530 $alink->height = $size;
531 if (!empty($filename)) {
532 $alink->width = $size;
533 $alink->type = self::mediatype($filename);
535 $alink->url = User_group::defaultLogo($size);
536 $alink->type = 'image/png';
542 static function mediatype($filename) {
543 $ext = strtolower(end(explode('.', $filename)));
544 if ($ext == 'jpeg') {
547 // hope we don't support any others
548 $types = array('png', 'gif', 'jpg', 'jpeg');
549 if (in_array($ext, $types)) {
550 return 'image/' . $ext;
557 * A noun-ish thing in the activity universe
559 * The activity streams spec talks about activity objects, while also having
560 * a tag activity:object, which is in fact an activity object. Aaaaaah!
562 * This is just a thing in the activity universe. Can be the subject, object,
563 * or indirect object (target!) of an activity verb. Rotten name, and I'm
564 * propagating it. *sigh*
568 * @author Evan Prodromou <evan@status.net>
569 * @copyright 2010 StatusNet, Inc.
570 * @license http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPLv3
571 * @link http://status.net/
576 const ARTICLE = 'http://activitystrea.ms/schema/1.0/article';
577 const BLOGENTRY = 'http://activitystrea.ms/schema/1.0/blog-entry';
578 const NOTE = 'http://activitystrea.ms/schema/1.0/note';
579 const STATUS = 'http://activitystrea.ms/schema/1.0/status';
580 const FILE = 'http://activitystrea.ms/schema/1.0/file';
581 const PHOTO = 'http://activitystrea.ms/schema/1.0/photo';
582 const ALBUM = 'http://activitystrea.ms/schema/1.0/photo-album';
583 const PLAYLIST = 'http://activitystrea.ms/schema/1.0/playlist';
584 const VIDEO = 'http://activitystrea.ms/schema/1.0/video';
585 const AUDIO = 'http://activitystrea.ms/schema/1.0/audio';
586 const BOOKMARK = 'http://activitystrea.ms/schema/1.0/bookmark';
587 const PERSON = 'http://activitystrea.ms/schema/1.0/person';
588 const GROUP = 'http://activitystrea.ms/schema/1.0/group';
589 const PLACE = 'http://activitystrea.ms/schema/1.0/place';
590 const COMMENT = 'http://activitystrea.ms/schema/1.0/comment';
593 // Atom elements we snarf
595 const TITLE = 'title';
596 const SUMMARY = 'summary';
598 const SOURCE = 'source';
602 const EMAIL = 'email';
612 public $avatarLinks = array();
620 * This probably needs to be refactored
621 * to generate a local class (ActivityPerson, ActivityFile, ...)
622 * based on the object type.
624 * @param DOMElement $element DOM thing to turn into an Activity thing
627 function __construct($element = null)
629 if (empty($element)) {
633 $this->element = $element;
635 $this->geopoint = $this->_childContent(
637 ActivityContext::POINT,
638 ActivityContext::GEORSS
641 if ($element->tagName == 'author') {
643 $this->type = self::PERSON; // XXX: is this fair?
644 $this->title = $this->_childContent($element, self::NAME);
645 $this->id = $this->_childContent($element, self::URI);
647 if (empty($this->id)) {
648 $email = $this->_childContent($element, self::EMAIL);
649 if (!empty($email)) {
651 $this->id = 'mailto:'.$email;
657 $this->type = $this->_childContent($element, Activity::OBJECTTYPE,
660 if (empty($this->type)) {
661 $this->type = ActivityObject::NOTE;
664 $this->id = $this->_childContent($element, self::ID);
665 $this->title = $this->_childContent($element, self::TITLE);
666 $this->summary = $this->_childContent($element, self::SUMMARY);
668 $this->source = $this->_getSource($element);
670 $this->content = ActivityUtils::getContent($element);
672 $this->link = ActivityUtils::getPermalink($element);
676 // Some per-type attributes...
677 if ($this->type == self::PERSON || $this->type == self::GROUP) {
678 $this->displayName = $this->title;
680 $avatars = ActivityUtils::getLinks($element, 'avatar');
681 foreach ($avatars as $link) {
682 $this->avatarLinks[] = new AvatarLink($link);
685 $this->poco = new PoCo($element);
689 private function _childContent($element, $tag, $namespace=ActivityUtils::ATOM)
691 return ActivityUtils::childContent($element, $tag, $namespace);
694 // Try to get a unique id for the source feed
696 private function _getSource($element)
698 $sourceEl = ActivityUtils::child($element, 'source');
700 if (empty($sourceEl)) {
703 $href = ActivityUtils::getLink($sourceEl, 'self');
707 return ActivityUtils::childContent($sourceEl, 'id');
712 static function fromNotice($notice)
714 $object = new ActivityObject();
716 $object->type = ActivityObject::NOTE;
718 $object->id = $notice->uri;
719 $object->title = $notice->content;
720 $object->content = $notice->rendered;
721 $object->link = $notice->bestUrl();
726 static function fromProfile($profile)
728 $object = new ActivityObject();
730 $object->type = ActivityObject::PERSON;
731 $object->id = $profile->getUri();
732 $object->title = $profile->getBestName();
733 $object->link = $profile->profileurl;
735 $orig = $profile->getOriginalAvatar();
738 $object->avatarLinks[] = AvatarLink::fromAvatar($orig);
747 foreach ($sizes as $size) {
750 $avatar = $profile->getAvatar($size);
752 if (!empty($avatar)) {
753 $alink = AvatarLink::fromAvatar($avatar);
755 $alink = new AvatarLink();
756 $alink->type = 'image/png';
757 $alink->height = $size;
758 $alink->width = $size;
759 $alink->url = Avatar::defaultImage($size);
762 $object->avatarLinks[] = $alink;
765 if (isset($profile->lat) && isset($profile->lon)) {
766 $object->geopoint = (float)$profile->lat
767 . ' ' . (float)$profile->lon;
770 $object->poco = PoCo::fromProfile($profile);
775 static function fromGroup($group)
777 $object = new ActivityObject();
779 $object->type = ActivityObject::GROUP;
780 $object->id = $group->getUri();
781 $object->title = $group->getBestName();
782 $object->link = $group->getUri();
784 $object->avatarLinks[] = AvatarLink::fromFilename(
785 $group->homepage_logo,
789 $object->avatarLinks[] = AvatarLink::fromFilename(
794 $object->avatarLinks[] = AvatarLink::fromFilename(
799 $object->poco = PoCo::fromGroup($group);
805 function asString($tag='activity:object')
807 $xs = new XMLStringer(true);
809 $xs->elementStart($tag);
811 $xs->element('activity:object-type', null, $this->type);
813 $xs->element(self::ID, null, $this->id);
815 if (!empty($this->title)) {
816 $xs->element(self::TITLE, null, $this->title);
819 if (!empty($this->summary)) {
820 $xs->element(self::SUMMARY, null, $this->summary);
823 if (!empty($this->content)) {
824 // XXX: assuming HTML content here
825 $xs->element(ActivityUtils::CONTENT, array('type' => 'html'), $this->content);
828 if (!empty($this->link)) {
832 'rel' => 'alternate',
833 'type' => 'text/html',
834 'href' => $this->link
840 if ($this->type == ActivityObject::PERSON
841 || $this->type == ActivityObject::GROUP) {
843 foreach ($this->avatarLinks as $avatar) {
847 'type' => $avatar->type,
848 'media:width' => $avatar->width,
849 'media:height' => $avatar->height,
850 'href' => $avatar->url
857 if (!empty($this->geopoint)) {
865 if (!empty($this->poco)) {
866 $xs->raw($this->poco->asString());
869 $xs->elementEnd($tag);
871 return $xs->getString();
876 * Utility class to hold a bunch of constant defining default verb types
880 * @author Evan Prodromou <evan@status.net>
881 * @copyright 2010 StatusNet, Inc.
882 * @license http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPLv3
883 * @link http://status.net/
888 const POST = 'http://activitystrea.ms/schema/1.0/post';
889 const SHARE = 'http://activitystrea.ms/schema/1.0/share';
890 const SAVE = 'http://activitystrea.ms/schema/1.0/save';
891 const FAVORITE = 'http://activitystrea.ms/schema/1.0/favorite';
892 const PLAY = 'http://activitystrea.ms/schema/1.0/play';
893 const FOLLOW = 'http://activitystrea.ms/schema/1.0/follow';
894 const FRIEND = 'http://activitystrea.ms/schema/1.0/make-friend';
895 const JOIN = 'http://activitystrea.ms/schema/1.0/join';
896 const TAG = 'http://activitystrea.ms/schema/1.0/tag';
898 // Custom OStatus verbs for the flipside until they're standardized
899 const DELETE = 'http://ostatus.org/schema/1.0/unfollow';
900 const UNFAVORITE = 'http://ostatus.org/schema/1.0/unfavorite';
901 const UNFOLLOW = 'http://ostatus.org/schema/1.0/unfollow';
902 const LEAVE = 'http://ostatus.org/schema/1.0/leave';
904 // For simple profile-update pings; no content to share.
905 const UPDATE_PROFILE = 'http://ostatus.org/schema/1.0/update-profile';
908 class ActivityContext
913 public $attention = array();
914 public $conversation;
916 const THR = 'http://purl.org/syndication/thread/1.0';
917 const GEORSS = 'http://www.georss.org/georss';
918 const OSTATUS = 'http://ostatus.org/schema/1.0';
920 const INREPLYTO = 'in-reply-to';
924 const POINT = 'point';
926 const ATTENTION = 'ostatus:attention';
927 const CONVERSATION = 'ostatus:conversation';
929 function __construct($element)
931 $replyToEl = ActivityUtils::child($element, self::INREPLYTO, self::THR);
933 if (!empty($replyToEl)) {
934 $this->replyToID = $replyToEl->getAttribute(self::REF);
935 $this->replyToUrl = $replyToEl->getAttribute(self::HREF);
938 $this->location = $this->getLocation($element);
940 $this->conversation = ActivityUtils::getLink($element, self::CONVERSATION);
942 // Multiple attention links allowed
944 $links = $element->getElementsByTagNameNS(ActivityUtils::ATOM, ActivityUtils::LINK);
946 for ($i = 0; $i < $links->length; $i++) {
948 $link = $links->item($i);
950 $linkRel = $link->getAttribute(ActivityUtils::REL);
952 if ($linkRel == self::ATTENTION) {
953 $this->attention[] = $link->getAttribute(self::HREF);
959 * Parse location given as a GeoRSS-simple point, if provided.
960 * http://www.georss.org/simple
962 * @param feed item $entry
963 * @return mixed Location or false
965 function getLocation($dom)
967 $points = $dom->getElementsByTagNameNS(self::GEORSS, self::POINT);
969 for ($i = 0; $i < $points->length; $i++) {
970 $point = $points->item($i)->textContent;
971 return self::locationFromPoint($point);
977 // XXX: Move to ActivityUtils or Location?
978 static function locationFromPoint($point)
980 $point = str_replace(',', ' ', $point); // per spec "treat commas as whitespace"
981 $point = preg_replace('/\s+/', ' ', $point);
982 $point = trim($point);
983 $coords = explode(' ', $point);
984 if (count($coords) == 2) {
985 list($lat, $lon) = $coords;
986 if (is_numeric($lat) && is_numeric($lon)) {
987 common_log(LOG_INFO, "Looking up location for $lat $lon from georss point");
988 return Location::fromLatLon($lat, $lon);
991 common_log(LOG_ERR, "Ignoring bogus georss:point value $point");
997 * An activity in the ActivityStrea.ms world
999 * An activity is kind of like a sentence: someone did something
1000 * to something else.
1002 * 'someone' is the 'actor'; 'did something' is the verb;
1003 * 'something else' is the object.
1006 * @package StatusNet
1007 * @author Evan Prodromou <evan@status.net>
1008 * @copyright 2010 StatusNet, Inc.
1009 * @license http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPLv3
1010 * @link http://status.net/
1015 const SPEC = 'http://activitystrea.ms/spec/1.0/';
1016 const SCHEMA = 'http://activitystrea.ms/schema/1.0/';
1018 const VERB = 'verb';
1019 const OBJECT = 'object';
1020 const ACTOR = 'actor';
1021 const SUBJECT = 'subject';
1022 const OBJECTTYPE = 'object-type';
1023 const CONTEXT = 'context';
1024 const TARGET = 'target';
1026 const ATOM = 'http://www.w3.org/2005/Atom';
1028 const AUTHOR = 'author';
1029 const PUBLISHED = 'published';
1030 const UPDATED = 'updated';
1032 public $actor; // an ActivityObject
1033 public $verb; // a string (the URL)
1034 public $object; // an ActivityObject
1035 public $target; // an ActivityObject
1036 public $context; // an ActivityObject
1037 public $time; // Time of the activity
1038 public $link; // an ActivityObject
1039 public $entry; // the source entry
1040 public $feed; // the source feed
1042 public $summary; // summary of activity
1043 public $content; // HTML content of activity
1044 public $id; // ID of the activity
1045 public $title; // title of the activity
1046 public $categories = array(); // list of AtomCategory objects
1049 * Turns a regular old Atom <entry> into a magical activity
1051 * @param DOMElement $entry Atom entry to poke at
1052 * @param DOMElement $feed Atom feed, for context
1055 function __construct($entry = null, $feed = null)
1057 if (is_null($entry)) {
1061 $this->entry = $entry;
1062 $this->feed = $feed;
1064 $pubEl = $this->_child($entry, self::PUBLISHED, self::ATOM);
1066 if (!empty($pubEl)) {
1067 $this->time = strtotime($pubEl->textContent);
1069 // XXX technically an error; being liberal. Good idea...?
1070 $updateEl = $this->_child($entry, self::UPDATED, self::ATOM);
1071 if (!empty($updateEl)) {
1072 $this->time = strtotime($updateEl->textContent);
1078 $this->link = ActivityUtils::getPermalink($entry);
1080 $verbEl = $this->_child($entry, self::VERB);
1082 if (!empty($verbEl)) {
1083 $this->verb = trim($verbEl->textContent);
1085 $this->verb = ActivityVerb::POST;
1086 // XXX: do other implied stuff here
1089 $objectEl = $this->_child($entry, self::OBJECT);
1091 if (!empty($objectEl)) {
1092 $this->object = new ActivityObject($objectEl);
1094 $this->object = new ActivityObject($entry);
1097 $actorEl = $this->_child($entry, self::ACTOR);
1099 if (!empty($actorEl)) {
1101 $this->actor = new ActivityObject($actorEl);
1103 } else if (!empty($feed) &&
1104 $subjectEl = $this->_child($feed, self::SUBJECT)) {
1106 $this->actor = new ActivityObject($subjectEl);
1108 } else if ($authorEl = $this->_child($entry, self::AUTHOR, self::ATOM)) {
1110 $this->actor = new ActivityObject($authorEl);
1112 } else if (!empty($feed) && $authorEl = $this->_child($feed, self::AUTHOR,
1115 $this->actor = new ActivityObject($authorEl);
1118 $contextEl = $this->_child($entry, self::CONTEXT);
1120 if (!empty($contextEl)) {
1121 $this->context = new ActivityContext($contextEl);
1123 $this->context = new ActivityContext($entry);
1126 $targetEl = $this->_child($entry, self::TARGET);
1128 if (!empty($targetEl)) {
1129 $this->target = new ActivityObject($targetEl);
1132 $this->summary = ActivityUtils::childContent($entry, 'summary');
1133 $this->id = ActivityUtils::childContent($entry, 'id');
1134 $this->content = ActivityUtils::getContent($entry);
1136 $catEls = $entry->getElementsByTagNameNS(self::ATOM, 'category');
1138 for ($i = 0; $i < $catEls->length; $i++) {
1139 $catEl = $catEls->item($i);
1140 $this->categories[] = new AtomCategory($catEl);
1146 * Returns an Atom <entry> based on this activity
1148 * @return DOMElement Atom entry
1151 function toAtomEntry()
1156 function asString($namespace=false)
1158 $xs = new XMLStringer(true);
1161 $attrs = array('xmlns' => 'http://www.w3.org/2005/Atom',
1162 'xmlns:activity' => 'http://activitystrea.ms/spec/1.0/',
1163 'xmlns:georss' => 'http://www.georss.org/georss',
1164 'xmlns:ostatus' => 'http://ostatus.org/schema/1.0',
1165 'xmlns:poco' => 'http://portablecontacts.net/spec/1.0',
1166 'xmlns:media' => 'http://purl.org/syndication/atommedia');
1171 $xs->elementStart('entry', $attrs);
1173 $xs->element('id', null, $this->id);
1174 $xs->element('title', null, $this->title);
1175 $xs->element('published', null, common_date_iso8601($this->time));
1176 $xs->element('content', array('type' => 'html'), $this->content);
1178 if (!empty($this->summary)) {
1179 $xs->element('summary', null, $this->summary);
1182 if (!empty($this->link)) {
1183 $xs->element('link', array('rel' => 'alternate',
1184 'type' => 'text/html'),
1190 $xs->elementStart('author');
1191 $xs->element('uri', array(), $this->actor->id);
1192 if ($this->actor->title) {
1193 $xs->element('name', array(), $this->actor->title);
1195 $xs->elementEnd('author');
1196 $xs->raw($this->actor->asString('activity:actor'));
1198 $xs->element('activity:verb', null, $this->verb);
1200 if ($this->object) {
1201 $xs->raw($this->object->asString());
1204 if ($this->target) {
1205 $xs->raw($this->target->asString('activity:target'));
1208 foreach ($this->categories as $cat) {
1209 $xs->raw($cat->asString());
1212 $xs->elementEnd('entry');
1214 return $xs->getString();
1217 private function _child($element, $tag, $namespace=self::SPEC)
1219 return ActivityUtils::child($element, $tag, $namespace);
1229 function __construct($element=null)
1231 if ($element && $element->attributes) {
1232 $this->term = $this->extract($element, 'term');
1233 $this->scheme = $this->extract($element, 'scheme');
1234 $this->label = $this->extract($element, 'label');
1238 protected function extract($element, $attrib)
1240 $node = $element->attributes->getNamedItemNS(Activity::ATOM, $attrib);
1242 return trim($node->textContent);
1244 $node = $element->attributes->getNamedItem($attrib);
1246 return trim($node->textContent);
1254 if ($this->term !== null) {
1255 $attribs['term'] = $this->term;
1257 if ($this->scheme !== null) {
1258 $attribs['scheme'] = $this->scheme;
1260 if ($this->label !== null) {
1261 $attribs['label'] = $this->label;
1263 $xs = new XMLStringer();
1264 $xs->element('category', $attribs);
1265 return $xs->asString();