let activities generate their own XML
This commit is contained in:
Evan Prodromou
parent
e9d22138ef
commit
ff2efd314f
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@ -55,6 +55,9 @@ class ActivityUtils
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const TYPE = 'type';
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const HREF = 'href';
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const CONTENT = 'content';
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const SRC = 'src';
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/**
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* Get the permalink for an Activity object
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*
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@ -139,6 +142,64 @@ class ActivityUtils
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return $el->textContent;
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}
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}
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/**
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* Get the content of an atom:entry-like object
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*
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* @param DOMElement $element The element to examine.
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*
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* @return string unencoded HTML content of the element, like "This -< is <b>HTML</b>."
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*
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* @todo handle remote content
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* @todo handle embedded XML mime types
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* @todo handle base64-encoded non-XML and non-text mime types
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*/
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static function getContent($element)
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{
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$contentEl = ActivityUtils::child($element, self::CONTENT);
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if (!empty($contentEl)) {
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$src = $contentEl->getAttribute(self::SRC);
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if (!empty($src)) {
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throw new ClientException(_("Can't handle remote content yet."));
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}
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$type = $contentEl->getAttribute(self::TYPE);
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// slavishly following http://atompub.org/rfc4287.html#rfc.section.4.1.3.3
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if ($type == 'text') {
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return $contentEl->textContent;
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} else if ($type == 'html') {
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$text = $contentEl->textContent;
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return htmlspecialchars_decode($text, ENT_QUOTES);
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} else if ($type == 'xhtml') {
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$divEl = ActivityUtils::child($contentEl, 'div');
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if (empty($divEl)) {
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return null;
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}
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$doc = $divEl->ownerDocument;
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$text = '';
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$children = $divEl->childNodes;
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for ($i = 0; $i < $children->length; $i++) {
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$child = $children->item($i);
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$text .= $doc->saveXML($child);
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}
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return trim($text);
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} else if (in_array(array('text/xml', 'application/xml'), $type) ||
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preg_match('#(+|/)xml$#', $type)) {
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throw new ClientException(_("Can't handle embedded XML content yet."));
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} else if (strncasecmp($type, 'text/', 5)) {
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return $contentEl->textContent;
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} else {
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throw new ClientException(_("Can't handle embedded Base64 content yet."));
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}
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}
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}
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}
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/**
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@ -182,9 +243,6 @@ class ActivityObject
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const TITLE = 'title';
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const SUMMARY = 'summary';
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const CONTENT = 'content';
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const TYPE = 'type';
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const SRC = 'src';
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const ID = 'id';
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const SOURCE = 'source';
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@ -248,7 +306,7 @@ class ActivityObject
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$this->source = $this->_getSource($element);
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$this->content = $this->_getContent($element);
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$this->content = ActivityUtils::getContent($element);
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$this->link = ActivityUtils::getPermalink($element);
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@ -287,64 +345,6 @@ class ActivityObject
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}
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}
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/**
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* Get the content of an atom:entry-like object
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*
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* @param DOMElement $element The element to examine.
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*
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* @return string unencoded HTML content of the element, like "This -< is <b>HTML</b>."
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*
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* @todo handle remote content
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* @todo handle embedded XML mime types
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* @todo handle base64-encoded non-XML and non-text mime types
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*/
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private function _getContent($element)
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{
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$contentEl = ActivityUtils::child($element, self::CONTENT);
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if (!empty($contentEl)) {
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$src = $contentEl->getAttribute(self::SRC);
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if (!empty($src)) {
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throw new ClientException(_("Can't handle remote content yet."));
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}
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$type = $contentEl->getAttribute(self::TYPE);
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// slavishly following http://atompub.org/rfc4287.html#rfc.section.4.1.3.3
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if ($type == 'text') {
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return $contentEl->textContent;
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} else if ($type == 'html') {
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$text = $contentEl->textContent;
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return htmlspecialchars_decode($text, ENT_QUOTES);
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} else if ($type == 'xhtml') {
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$divEl = ActivityUtils::child($contentEl, 'div');
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if (empty($divEl)) {
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return null;
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}
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$doc = $divEl->ownerDocument;
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$text = '';
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$children = $divEl->childNodes;
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for ($i = 0; $i < $children->length; $i++) {
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$child = $children->item($i);
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$text .= $doc->saveXML($child);
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}
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return trim($text);
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} else if (in_array(array('text/xml', 'application/xml'), $type) ||
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preg_match('#(+|/)xml$#', $type)) {
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throw new ClientException(_("Can't handle embedded XML content yet."));
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} else if (strncasecmp($type, 'text/', 5)) {
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return $contentEl->textContent;
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} else {
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throw new ClientException(_("Can't handle embedded Base64 content yet."));
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}
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}
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}
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static function fromNotice($notice)
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{
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$object = new ActivityObject();
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@ -359,6 +359,18 @@ class ActivityObject
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return $object;
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}
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static function fromProfile($profile)
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{
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$object = new ActivityObject();
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$object->type = ActivityObject::PERSON;
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$object->id = $profile->getUri();
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$object->title = $this->getBestName();
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$object->link = $profile->profileurl;
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return $object;
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}
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function asString($tag='activity:object')
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{
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$xs = new XMLStringer(true);
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@ -550,6 +562,11 @@ class Activity
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public $entry; // the source entry
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public $feed; // the source feed
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public $summary; // summary of activity
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public $content; // HTML content of activity
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public $id; // ID of the activity
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public $title; // title of the activity
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/**
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* Turns a regular old Atom <entry> into a magical activity
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*
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@ -557,8 +574,12 @@ class Activity
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* @param DOMElement $feed Atom feed, for context
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*/
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function __construct($entry, $feed = null)
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function __construct($entry = null, $feed = null)
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{
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if (is_null($entry)) {
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return;
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}
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$this->entry = $entry;
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$this->feed = $feed;
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@ -629,6 +650,10 @@ class Activity
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if (!empty($targetEl)) {
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$this->target = new ActivityObject($targetEl);
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}
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$this->summary = ActivityUtils::childContent($entry, 'summary');
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$this->id = ActivityUtils::childContent($entry, 'id');
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$this->content = ActivityUtils::getContent($entry);
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}
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/**
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@ -642,6 +667,47 @@ class Activity
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return null;
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}
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function asString($namespace=false)
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{
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$xs = new XMLStringer(true);
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if ($namespace) {
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$attrs = array('xmlns' => 'http://www.w3.org/2005/Atom',
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'xmlns:activity' => 'http://activitystrea.ms/spec/1.0/',
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'xmlns:ostatus' => 'http://ostatus.org/schema/1.0');
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} else {
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$attrs = array();
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}
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$xs->elementStart('entry', $attrs);
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$xs->element('id', null, $this->id);
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$xs->element('title', null, $this->title);
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$xs->element('published', null, common_date_iso8601($this->time));
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$xs->element('content', array('type' => 'html'), $this->content);
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if (!empty($this->summary)) {
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$xs->element('summary', null, $this->summary);
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}
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if (!empty($this->link)) {
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$xs->element('link', array('rel' => 'alternate',
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'type' => 'text/html'),
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$this->link);
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}
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// XXX: add context
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// XXX: add target
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$xs->raw($this->actor->asString());
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$xs->element('activity:verb', null, $this->verb);
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$xs->raw($this->object->asString());
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$xs->elementEnd('entry');
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return $xs->getString();
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}
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private function _child($element, $tag, $namespace=self::SPEC)
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{
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return ActivityUtils::child($element, $tag, $namespace);
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