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-rw-r--r--plugins/OStatus/lib/activity.php278
1 files changed, 273 insertions, 5 deletions
diff --git a/plugins/OStatus/lib/activity.php b/plugins/OStatus/lib/activity.php
index f137946ab..f25a843c3 100644
--- a/plugins/OStatus/lib/activity.php
+++ b/plugins/OStatus/lib/activity.php
@@ -55,6 +55,9 @@ class ActivityUtils
const TYPE = 'type';
const HREF = 'href';
+ const CONTENT = 'content';
+ const SRC = 'src';
+
/**
* Get the permalink for an Activity object
*
@@ -139,6 +142,64 @@ class ActivityUtils
return $el->textContent;
}
}
+
+ /**
+ * Get the content of an atom:entry-like object
+ *
+ * @param DOMElement $element The element to examine.
+ *
+ * @return string unencoded HTML content of the element, like "This -&lt; is <b>HTML</b>."
+ *
+ * @todo handle remote content
+ * @todo handle embedded XML mime types
+ * @todo handle base64-encoded non-XML and non-text mime types
+ */
+
+ static function getContent($element)
+ {
+ $contentEl = ActivityUtils::child($element, self::CONTENT);
+
+ if (!empty($contentEl)) {
+
+ $src = $contentEl->getAttribute(self::SRC);
+
+ if (!empty($src)) {
+ throw new ClientException(_("Can't handle remote content yet."));
+ }
+
+ $type = $contentEl->getAttribute(self::TYPE);
+
+ // slavishly following http://atompub.org/rfc4287.html#rfc.section.4.1.3.3
+
+ if ($type == 'text') {
+ return $contentEl->textContent;
+ } else if ($type == 'html') {
+ $text = $contentEl->textContent;
+ return htmlspecialchars_decode($text, ENT_QUOTES);
+ } else if ($type == 'xhtml') {
+ $divEl = ActivityUtils::child($contentEl, 'div');
+ if (empty($divEl)) {
+ return null;
+ }
+ $doc = $divEl->ownerDocument;
+ $text = '';
+ $children = $divEl->childNodes;
+
+ for ($i = 0; $i < $children->length; $i++) {
+ $child = $children->item($i);
+ $text .= $doc->saveXML($child);
+ }
+ return trim($text);
+ } else if (in_array(array('text/xml', 'application/xml'), $type) ||
+ preg_match('#(+|/)xml$#', $type)) {
+ throw new ClientException(_("Can't handle embedded XML content yet."));
+ } else if (strncasecmp($type, 'text/', 5)) {
+ return $contentEl->textContent;
+ } else {
+ throw new ClientException(_("Can't handle embedded Base64 content yet."));
+ }
+ }
+ }
}
/**
@@ -182,7 +243,6 @@ class ActivityObject
const TITLE = 'title';
const SUMMARY = 'summary';
- const CONTENT = 'content';
const ID = 'id';
const SOURCE = 'source';
@@ -198,6 +258,7 @@ class ActivityObject
public $content;
public $link;
public $source;
+ public $avatar;
/**
* Constructor
@@ -209,8 +270,12 @@ class ActivityObject
* @param DOMElement $element DOM thing to turn into an Activity thing
*/
- function __construct($element)
+ function __construct($element = null)
{
+ if (empty($element)) {
+ return;
+ }
+
$this->element = $element;
if ($element->tagName == 'author') {
@@ -239,10 +304,11 @@ class ActivityObject
$this->id = $this->_childContent($element, self::ID);
$this->title = $this->_childContent($element, self::TITLE);
$this->summary = $this->_childContent($element, self::SUMMARY);
- $this->content = $this->_childContent($element, self::CONTENT);
$this->source = $this->_getSource($element);
+ $this->content = ActivityUtils::getContent($element);
+
$this->link = ActivityUtils::getPermalink($element);
// XXX: grab PoCo stuff
@@ -279,6 +345,65 @@ class ActivityObject
}
}
}
+
+ static function fromNotice($notice)
+ {
+ $object = new ActivityObject();
+
+ $object->type = ActivityObject::NOTE;
+
+ $object->id = $notice->uri;
+ $object->title = $notice->content;
+ $object->content = $notice->rendered;
+ $object->link = $notice->bestUrl();
+
+ return $object;
+ }
+
+ static function fromProfile($profile)
+ {
+ $object = new ActivityObject();
+
+ $object->type = ActivityObject::PERSON;
+ $object->id = $profile->getUri();
+ $object->title = $profile->getBestName();
+ $object->link = $profile->profileurl;
+
+ return $object;
+ }
+
+ function asString($tag='activity:object')
+ {
+ $xs = new XMLStringer(true);
+
+ $xs->elementStart($tag);
+
+ $xs->element('activity:object-type', null, $this->type);
+
+ $xs->element(self::ID, null, $this->id);
+
+ if (!empty($this->title)) {
+ $xs->element(self::TITLE, null, $this->title);
+ }
+
+ if (!empty($this->summary)) {
+ $xs->element(self::SUMMARY, null, $this->summary);
+ }
+
+ if (!empty($this->content)) {
+ // XXX: assuming HTML content here
+ $xs->element(self::CONTENT, array('type' => 'html'), $this->content);
+ }
+
+ if (!empty($this->link)) {
+ $xs->element('link', array('rel' => 'alternate', 'type' => 'text/html'),
+ $this->content);
+ }
+
+ $xs->elementEnd($tag);
+
+ return $xs->getString();
+ }
}
/**
@@ -303,6 +428,93 @@ class ActivityVerb
const FRIEND = 'http://activitystrea.ms/schema/1.0/make-friend';
const JOIN = 'http://activitystrea.ms/schema/1.0/join';
const TAG = 'http://activitystrea.ms/schema/1.0/tag';
+
+ // Custom OStatus verbs for the flipside until they're standardized
+ const DELETE = 'http://ostatus.org/schema/1.0/unfollow';
+ const UNFAVORITE = 'http://ostatus.org/schema/1.0/unfavorite';
+ const UNFOLLOW = 'http://ostatus.org/schema/1.0/unfollow';
+ const LEAVE = 'http://ostatus.org/schema/1.0/leave';
+}
+
+class ActivityContext
+{
+ public $replyToID;
+ public $replyToUrl;
+ public $location;
+ public $attention = array();
+ public $conversation;
+
+ const THR = 'http://purl.org/syndication/thread/1.0';
+ const GEORSS = 'http://www.georss.org/georss';
+ const OSTATUS = 'http://ostatus.org/schema/1.0';
+
+ const INREPLYTO = 'in-reply-to';
+ const REF = 'ref';
+ const HREF = 'href';
+
+ const POINT = 'point';
+
+ const ATTENTION = 'ostatus:attention';
+ const CONVERSATION = 'ostatus:conversation';
+
+ function __construct($element)
+ {
+ $replyToEl = ActivityUtils::child($element, self::INREPLYTO, self::THR);
+
+ if (!empty($replyToEl)) {
+ $this->replyToID = $replyToEl->getAttribute(self::REF);
+ $this->replyToUrl = $replyToEl->getAttribute(self::HREF);
+ }
+
+ $this->location = $this->getLocation($element);
+
+ $this->conversation = ActivityUtils::getLink($element, self::CONVERSATION);
+
+ // Multiple attention links allowed
+
+ $links = $element->getElementsByTagNameNS(ActivityUtils::ATOM, ActivityUtils::LINK);
+
+ for ($i = 0; $i < $links->length; $i++) {
+
+ $link = $links->item($i);
+
+ $linkRel = $link->getAttribute(ActivityUtils::REL);
+
+ if ($linkRel == self::ATTENTION) {
+ $this->attention[] = $link->getAttribute(self::HREF);
+ }
+ }
+ }
+
+ /**
+ * Parse location given as a GeoRSS-simple point, if provided.
+ * http://www.georss.org/simple
+ *
+ * @param feed item $entry
+ * @return mixed Location or false
+ */
+ function getLocation($dom)
+ {
+ $points = $dom->getElementsByTagNameNS(self::GEORSS, self::POINT);
+
+ for ($i = 0; $i < $points->length; $i++) {
+ $point = $points->item($i)->textContent;
+ $point = str_replace(',', ' ', $point); // per spec "treat commas as whitespace"
+ $point = preg_replace('/\s+/', ' ', $point);
+ $point = trim($point);
+ $coords = explode(' ', $point);
+ if (count($coords) == 2) {
+ list($lat, $lon) = $coords;
+ if (is_numeric($lat) && is_numeric($lon)) {
+ common_log(LOG_INFO, "Looking up location for $lat $lon from georss");
+ return Location::fromLatLon($lat, $lon);
+ }
+ }
+ common_log(LOG_ERR, "Ignoring bogus georss:point value $point");
+ }
+
+ return null;
+ }
}
/**
@@ -351,6 +563,11 @@ class Activity
public $entry; // the source entry
public $feed; // the source feed
+ public $summary; // summary of activity
+ public $content; // HTML content of activity
+ public $id; // ID of the activity
+ public $title; // title of the activity
+
/**
* Turns a regular old Atom <entry> into a magical activity
*
@@ -358,8 +575,12 @@ class Activity
* @param DOMElement $feed Atom feed, for context
*/
- function __construct($entry, $feed = null)
+ function __construct($entry = null, $feed = null)
{
+ if (is_null($entry)) {
+ return;
+ }
+
$this->entry = $entry;
$this->feed = $feed;
@@ -420,7 +641,9 @@ class Activity
$contextEl = $this->_child($entry, self::CONTEXT);
if (!empty($contextEl)) {
- $this->context = new ActivityObject($contextEl);
+ $this->context = new ActivityContext($contextEl);
+ } else {
+ $this->context = new ActivityContext($entry);
}
$targetEl = $this->_child($entry, self::TARGET);
@@ -428,6 +651,10 @@ class Activity
if (!empty($targetEl)) {
$this->target = new ActivityObject($targetEl);
}
+
+ $this->summary = ActivityUtils::childContent($entry, 'summary');
+ $this->id = ActivityUtils::childContent($entry, 'id');
+ $this->content = ActivityUtils::getContent($entry);
}
/**
@@ -441,6 +668,47 @@ class Activity
return null;
}
+ function asString($namespace=false)
+ {
+ $xs = new XMLStringer(true);
+
+ if ($namespace) {
+ $attrs = array('xmlns' => 'http://www.w3.org/2005/Atom',
+ 'xmlns:activity' => 'http://activitystrea.ms/spec/1.0/',
+ 'xmlns:ostatus' => 'http://ostatus.org/schema/1.0');
+ } else {
+ $attrs = array();
+ }
+
+ $xs->elementStart('entry', $attrs);
+
+ $xs->element('id', null, $this->id);
+ $xs->element('title', null, $this->title);
+ $xs->element('published', null, common_date_iso8601($this->time));
+ $xs->element('content', array('type' => 'html'), $this->content);
+
+ if (!empty($this->summary)) {
+ $xs->element('summary', null, $this->summary);
+ }
+
+ if (!empty($this->link)) {
+ $xs->element('link', array('rel' => 'alternate',
+ 'type' => 'text/html'),
+ $this->link);
+ }
+
+ // XXX: add context
+ // XXX: add target
+
+ $xs->raw($this->actor->asString());
+ $xs->element('activity:verb', null, $this->verb);
+ $xs->raw($this->object->asString());
+
+ $xs->elementEnd('entry');
+
+ return $xs->getString();
+ }
+
private function _child($element, $tag, $namespace=self::SPEC)
{
return ActivityUtils::child($element, $tag, $namespace);
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-07-23 04:17:39 +0000