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Update activity streams JSON to match spec

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Squashed commit of the following:

commit 0722450267a1d0f4bdc2853f52a85b850329db73
Author: Zach Copley <zach@status.net>
Date:   Thu Aug 25 09:58:29 2011 -0700

    Updgrade activity object json

commit 882ba1dceaba8a0b3ec3513760aa09f68e41f270
Author: Zach Copley <zach@status.net>
Date:   Wed Aug 24 16:30:07 2011 -0700

    Update to the JSON activity serialization document

commit 121e441b314b93e184711c3dcc79ada69d429eba
Author: Zach Copley <zach@status.net>
Date:   Wed Aug 24 15:08:06 2011 -0700

    Output application/json instead of application/stream+json (at least for now)

commit e045e214bffe5e0ddeb0a42555d440b75ae4edde
Author: Zach Copley <zach@status.net>
Date:   Wed Aug 24 15:06:40 2011 -0700

    Update to use latest property names from the JSON activity spec
This commit is contained in:
Zach Copley
2011-08-25 10:00:20 -07:00
parent 94503a50fd
commit 297d603feb
4 changed files with 126 additions and 40 deletions
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105
lib/activitystreamjsondocument.php
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@@ -41,15 +41,29 @@ if (!defined('STATUSNET'))
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
* @link http://status.net/
*/
class ActivityStreamJSONDocument
class ActivityStreamJSONDocument extends JSONActivityCollection
{
const CONTENT_TYPE = 'application/stream+json; charset=utf-8';
// Note: Lot of AS folks think the content type should be:
// 'application/stream+json; charset=utf-8', but this is more
// useful at the moment, because some programs actually understand
// it.
const CONTENT_TYPE = 'application/json; charset=utf-8';
/* Top level array representing the document */
protected $doc = array();
/* The current authenticated user */
protected $cur = null;
protected $cur;
/* Title of the document */
protected $title;
/* Links associated with this document */
protected $links;
/* Count of items in this document */
// XXX This is cryptically referred to in the spec: "The Stream serialization MAY contain a count property."
protected $count;
/**
* Constructor
@@ -57,20 +71,26 @@ class ActivityStreamJSONDocument
* @param User $cur the current authenticated user
*/
function __construct($cur = null)
function __construct($cur = null, $title = null, $items = null, $links = null, $url = null)
{
parent::__construct($items, $url);
$this->cur = $cur;
/* Title of the JSON document */
$this->doc['title'] = null;
$this->title = $title;
/* Array of activity items */
$this->doc['items'] = array();
if (!empty($items)) {
$this->count = count($this->items);
}
/* Array of links associated with the document */
$this->doc['links'] = array();
$this->links = empty($links) ? array() : $items;
/* URL of a document, this document? containing a list of all the items in the stream */
if (!empty($this->url)) {
$this->url = $this->url;
}
}
/**
@@ -81,9 +101,15 @@ class ActivityStreamJSONDocument
function setTitle($title)
{
$this->doc['title'] = $title;
$this->title = $title;
}
function setUrl($url)
{
$this->url = $url;
}
/**
* Add more than one Item to the document
*
@@ -116,7 +142,8 @@ class ActivityStreamJSONDocument
$act = $notice->asActivity($cur);
$act->extra[] = $notice->noticeInfo($cur);
array_push($this->doc['items'], $act->asArray());
array_push($this->items, $act->asArray());
$this->count++;
}
/**
@@ -128,7 +155,7 @@ class ActivityStreamJSONDocument
function addLink($url = null, $rel = null, $mediaType = null)
{
$link = new ActivityStreamsLink($url, $rel, $mediaType);
$this->doc['links'][] = $link->asArray();
array_push($this->links, $link->asArray());
}
/*
@@ -138,7 +165,13 @@ class ActivityStreamJSONDocument
*/
function asString()
{
return json_encode(array_filter($this->doc));
$this->doc['generator'] = 'StatusNet ' . STATUSNET_VERSION; // extension
$this->doc['title'] = $this->title;
$this->doc['url'] = $this->url;
$this->doc['count'] = $this->count;
$this->doc['items'] = $this->items;
$this->doc['links'] = $this->links; // extension
return json_encode(array_filter($this->doc)); // filter out empty elements
}
}
@@ -161,8 +194,8 @@ class ActivityStreamsMediaLink extends ActivityStreamsLink
$url = null,
$width = null,
$height = null,
$mediaType = null,
$rel = null,
$mediaType = null, // extension
$rel = null, // extension
$duration = null
)
{
@@ -183,6 +216,49 @@ class ActivityStreamsMediaLink extends ActivityStreamsLink
}
}
/*
* Collection primarily as the root of an Activity Streams doc but can be used as the value
* of extension properties in a variety of situations.
*
* A valid Collection object serialization MUST contain at least the url or items properties.
*/
class JSONActivityCollection {
/* Non-negative integer specifying the total number of activities within the stream */
protected $totalItems;
/* An array containing a listing of Objects of any object type */
protected $items;
/* IRI referencing a JSON document containing the full listing of objects in the collection */
protected $url;
/**
* Constructor
*
* @param array $items array of activity items
* @param string $url url of a doc list all the objs in the collection
* @param int $totalItems total number of items in the collection
*/
function __construct($items = null, $url = null)
{
$this->items = empty($items) ? array() : $items;
$this->totalItems = count($items);
$this->url = $url;
}
/**
* Get the total number of items in the collection
*
* @return int total the total
*/
public function getTotalItems()
{
$this->totalItems = count($items);
return $this->totalItems;
}
}
/**
* A class for representing links in JSON Activities
*
@@ -216,3 +292,4 @@ class ActivityStreamsLink
return array_filter($this->linkDict);
}
}