GNUsocial/gnu-social
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Code Issues Releases Wiki Activity

restructure Activity classes to push more DOM stuff to ActivityUtils

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This commit is contained in:
Evan Prodromou 2010-02-16 12:49:54 -05:00
parent 3d170bfa30
commit 201110ffaa
1 changed files with 83 additions and 40 deletions
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123
plugins/OStatus/lib/activity.php
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@ -63,22 +63,78 @@ class ActivityUtils
* @return string related link, if any
*/
static function getLink($element)
static function getPermalink($element)
{
return self::getLink($element, 'alternate', 'text/html');
}
/**
* Get the permalink for an Activity object
*
* @param DOMElement $element A DOM element
*
* @return string related link, if any
*/
static function getLink($element, $rel, $type=null)
{
$links = $element->getElementsByTagnameNS(self::ATOM, self::LINK);
foreach ($links as $link) {
$rel = $link->getAttribute(self::REL);
$type = $link->getAttribute(self::TYPE);
$linkRel = $link->getAttribute(self::REL);
$linkType = $link->getAttribute(self::TYPE);
if ($rel == 'alternate' && $type == 'text/html') {
if ($linkRel == $rel &&
(is_null($type) || $linkType == $type)) {
return $link->getAttribute(self::HREF);
}
}
return null;
}
/**
* Gets the first child element with the given tag
*
* @param DOMElement $element element to pick at
* @param string $tag tag to look for
* @param string $namespace Namespace to look under
*
* @return DOMElement found element or null
*/
static function child($element, $tag, $namespace=self::ATOM)
{
$els = $element->getElementsByTagnameNS($namespace, $tag);
if (empty($els) || $els->length == 0) {
return null;
} else {
return $els->item(0);
}
}
/**
* Grab the text content of a DOM element child of the current element
*
* @param DOMElement $element Element whose children we examine
* @param string $tag Tag to look up
* @param string $namespace Namespace to use, defaults to Atom
*
* @return string content of the child
*/
static function childContent($element, $tag, $namespace=self::ATOM)
{
$el = self::child($element, $tag, $namespace);
if (empty($el)) {
return null;
} else {
return $el->textContent;
}
}
}
/**
@ -130,6 +186,7 @@ class ActivityObject
const URI = 'uri';
const EMAIL = 'email';
public $element;
public $type;
public $id;
public $title;
@ -150,7 +207,7 @@ class ActivityObject
function __construct($element)
{
$this->source = $element;
$this->element = $element;
if ($element->tagName == 'author') {
@ -179,33 +236,35 @@ class ActivityObject
$this->title = $this->_childContent($element, self::TITLE);
$this->summary = $this->_childContent($element, self::SUMMARY);
$this->content = $this->_childContent($element, self::CONTENT);
$this->source = $this->_childContent($element, self::SOURCE);
$this->link = ActivityUtils::getLink($element);
$this->source = $this->_getSource($element);
$this->link = ActivityUtils::getPermalink($element);
// XXX: grab PoCo stuff
}
}
/**
* Grab the text content of a DOM element child of the current element
*
* @param DOMElement $element Element whose children we examine
* @param string $tag Tag to look up
* @param string $namespace Namespace to use, defaults to Atom
*
* @return string content of the child
*/
private function _childContent($element, $tag, $namespace=Activity::ATOM)
private function _childContent($element, $tag, $namespace=ActivityUtils::ATOM)
{
$els = $element->getElementsByTagnameNS($namespace, $tag);
return ActivityUtils::childContent($element, $tag, $namespace);
}
if (empty($els) || $els->length == 0) {
// Try to get a unique id for the source feed
private function _getSource($element)
{
$sourceEl = ActivityUtils::child($element, 'source');
if (empty($sourceEl)) {
return null;
} else {
$el = $els->item(0);
return $el->textContent;
$href = ActivityUtils::getLink($sourceEl, 'self');
if (!empty($href)) {
return $href;
} else {
return ActivityUtils::childContent($sourceEl, 'id');
}
}
}
}
@ -306,7 +365,7 @@ class Activity
}
}
$this->link = ActivityUtils::getLink($entry);
$this->link = ActivityUtils::getPermalink($entry);
$verbEl = $this->_child($entry, self::VERB);
@ -370,24 +429,8 @@ class Activity
return null;
}
/**
* Gets the first child element with the given tag
*
* @param DOMElement $element element to pick at
* @param string $tag tag to look for
* @param string $namespace Namespace to look under
*
* @return DOMElement found element or null
*/
private function _child($element, $tag, $namespace=self::SPEC)
{
$els = $element->getElementsByTagnameNS($namespace, $tag);
if (empty($els) || $els->length == 0) {
return null;
} else {
return $els->item(0);
}
return ActivityUtils::child($element, $tag, $namespace);
}
}