From f399afdd2e3cc072efaca069b7a874c7801b31f6 Mon Sep 17 00:00:00 2001
From: Steve Clay <steve@mrclay.org>
Date: Mon, 9 Apr 2012 17:05:57 -0400
Subject: switched to platform classes. see
 https://github.com/Elgg/videolist/issues/4

---
 lib/Videolist/Platform/Bliptv.php   | 39 ++++++++++++++++++++++++
 lib/Videolist/Platform/Gisstv.php   | 51 +++++++++++++++++++++++++++++++
 lib/Videolist/Platform/Metacafe.php | 39 ++++++++++++++++++++++++
 lib/Videolist/Platform/Vimeo.php    | 41 +++++++++++++++++++++++++
 lib/Videolist/Platform/Youtube.php  | 38 +++++++++++++++++++++++
 lib/Videolist/PlatformInterface.php | 23 ++++++++++++++
 lib/bliptv.php                      | 29 ------------------
 lib/gisstv.php                      | 41 -------------------------
 lib/metacafe.php                    | 29 ------------------
 lib/videolist.php                   | 61 +++++++++++++++++++++----------------
 lib/vimeo.php                       | 31 -------------------
 lib/youtube.php                     | 28 -----------------
 12 files changed, 266 insertions(+), 184 deletions(-)
 create mode 100644 lib/Videolist/Platform/Bliptv.php
 create mode 100644 lib/Videolist/Platform/Gisstv.php
 create mode 100644 lib/Videolist/Platform/Metacafe.php
 create mode 100644 lib/Videolist/Platform/Vimeo.php
 create mode 100644 lib/Videolist/Platform/Youtube.php
 create mode 100644 lib/Videolist/PlatformInterface.php
 delete mode 100644 lib/bliptv.php
 delete mode 100644 lib/gisstv.php
 delete mode 100644 lib/metacafe.php
 delete mode 100644 lib/vimeo.php
 delete mode 100644 lib/youtube.php

(limited to 'lib')

diff --git a/lib/Videolist/Platform/Bliptv.php b/lib/Videolist/Platform/Bliptv.php
new file mode 100644
index 000000000..6956e060d
--- /dev/null
+++ b/lib/Videolist/Platform/Bliptv.php
@@ -0,0 +1,39 @@
+<?php
+
+class Videolist_Platform_Bliptv implements Videolist_PlatformInterface
+{
+    public function getType()
+    {
+        return "bliptv";
+    }
+
+    public function parseUrl($url)
+    {
+        $parsed = parse_url($url);
+        $path = explode('/', $parsed['path']);
+
+        if ($parsed['host'] != 'blip.tv' || count($path) < 3) {
+            return false;
+        }
+
+        return array(
+            'videotype' => 'bliptv',
+            'video_id' => $parsed['path'],
+        );
+    }
+
+    public function getData($parsed)
+    {
+        $video_id = $parsed['video_id'];
+
+        $buffer = file_get_contents('http://blip.tv'.$video_id.'?skin=rss');
+        $xml = new SimpleXMLElement($buffer);
+
+        return array(
+            'title' => current($xml->xpath('/rss/channel/item/title')),
+            'description' => strip_tags(current($xml->xpath('/rss/channel/item/description'))),
+            'thumbnail' => current($xml->xpath('/rss/channel/item/media:thumbnail/@url')),
+            'embedurl' => current($xml->xpath('/rss/channel/item/blip:embedUrl')),
+        );
+    }
+}
diff --git a/lib/Videolist/Platform/Gisstv.php b/lib/Videolist/Platform/Gisstv.php
new file mode 100644
index 000000000..f811619a8
--- /dev/null
+++ b/lib/Videolist/Platform/Gisstv.php
@@ -0,0 +1,51 @@
+<?php
+
+class Videolist_Platform_Gisstv implements Videolist_PlatformInterface
+{
+    public function getType()
+    {
+        return "gisstv";
+    }
+
+    public function parseUrl($url)
+    {
+        $parsed = parse_url($url);
+        $path = explode('/', $parsed['path']);
+
+        if ($parsed['host'] != 'giss.tv' || $path[1] != 'dmmdb') {
+            return false;
+        }
+
+        if($path[2] == 'contents' && isset($path[3])) {
+            $video_id = $path[3];
+        } elseif($path[3] == 'contents' && isset($path[4])) {
+            $video_id = $path[4];
+        } else {
+            return false;
+        }
+
+        return array(
+            'videotype' => 'gisstv',
+            'video_id' => $video_id,
+        );
+    }
+
+    public function getData($parsed)
+    {
+        $video_id = $parsed['video_id'];
+
+        $buffer = file_get_contents('http://giss.tv/dmmdb//rss.php');
+        $xml = new SimpleXMLElement($buffer);
+
+        $data = array();
+        foreach($xml->xpath('/rss/channel/item') as $item){
+            if ($item->link === 'http://giss.tv/dmmdb//contents/'.$video_id) {
+                $data['title'] = $item->title;
+                $data['description'] = strip_tags($item->description);
+                $data['thumbnail'] = $item->thumbnail;
+                break;
+            }
+        }
+        return $data;
+    }
+}
diff --git a/lib/Videolist/Platform/Metacafe.php b/lib/Videolist/Platform/Metacafe.php
new file mode 100644
index 000000000..3cf2fb8ce
--- /dev/null
+++ b/lib/Videolist/Platform/Metacafe.php
@@ -0,0 +1,39 @@
+<?php
+
+class Videolist_Platform_Metacafe implements Videolist_PlatformInterface
+{
+    public function getType()
+    {
+        return "metacafe";
+    }
+
+    public function parseUrl($url)
+    {
+        $parsed = parse_url($url);
+        $path = explode('/', $parsed['path']);
+
+        if ($parsed['host'] != 'www.metacafe.com' || $path[1] != 'watch' || !(int) $path[2]) {
+            return false;
+        }
+
+        return array(
+            'videotype' => 'metacafe',
+            'video_id' => $path[2],
+        );
+    }
+
+    public function getData($parsed)
+    {
+        $video_id = $parsed['video_id'];
+
+        $buffer = file_get_contents("http://www.metacafe.com/api/item/$video_id");
+        $xml = new SimpleXMLElement($buffer);
+
+        return array(
+            'title' => current($xml->xpath('/rss/channel/item/title')),
+            'description' => strip_tags(current($xml->xpath('/rss/channel/item/description'))),
+            'thumbnail' => current($xml->xpath('/rss/channel/item/media:thumbnail/@url')),
+            'embedurl' => current($xml->xpath('/rss/channel/item/media:content/@url')),
+        );
+    }
+}
diff --git a/lib/Videolist/Platform/Vimeo.php b/lib/Videolist/Platform/Vimeo.php
new file mode 100644
index 000000000..82bd57309
--- /dev/null
+++ b/lib/Videolist/Platform/Vimeo.php
@@ -0,0 +1,41 @@
+<?php
+
+class Videolist_Platform_Vimeo implements Videolist_PlatformInterface
+{
+    public function getType()
+    {
+        return "vimeo";
+    }
+
+    public function parseUrl($url)
+    {
+        $parsed = parse_url($url);
+        $path = explode('/', $parsed['path']);
+
+        if ($parsed['host'] != 'vimeo.com' || !(int) $path[1]) {
+            return false;
+        }
+
+        return array(
+            'videotype' => 'vimeo',
+            'video_id' => $path[1],
+        );
+    }
+
+    public function getData($parsed)
+    {
+        $video_id = $parsed['video_id'];
+
+        $buffer = file_get_contents("http://vimeo.com/api/v2/video/$video_id.xml");
+        $xml = new SimpleXMLElement($buffer);
+
+        $videos = $xml->children();
+        $video = $videos[0];
+
+        return array(
+            'title' => $video->title,
+            'description' => strip_tags($video->description),
+            'thumbnail' => $video->thumbnail_medium,
+        );
+    }
+}
diff --git a/lib/Videolist/Platform/Youtube.php b/lib/Videolist/Platform/Youtube.php
new file mode 100644
index 000000000..41c7d1252
--- /dev/null
+++ b/lib/Videolist/Platform/Youtube.php
@@ -0,0 +1,38 @@
+<?php
+
+class Videolist_Platform_Youtube implements Videolist_PlatformInterface
+{
+    public function getType()
+    {
+        return "youtube";
+    }
+
+    public function parseUrl($url)
+    {
+        $parsed = parse_url($url);
+        parse_str($parsed['query'], $query);
+
+        if ($parsed['host'] != 'www.youtube.com' || $parsed['path'] != '/watch' || !isset($query['v'])) {
+            return false;
+        }
+
+        return array(
+            'videotype' => 'youtube',
+            'video_id' => $query['v'],
+        );
+    }
+
+    public function getData($parsed)
+    {
+        $video_id = $parsed['video_id'];
+
+        $buffer = file_get_contents('http://gdata.youtube.com/feeds/api/videos/'.$video_id);
+        $xml = new SimpleXMLElement($buffer);
+
+        return array(
+            'title' => $xml->title,
+            'description' => strip_tags($xml->content),
+            'thumbnail' => "http://img.youtube.com/vi/$video_id/default.jpg",
+        );
+    }
+}
diff --git a/lib/Videolist/PlatformInterface.php b/lib/Videolist/PlatformInterface.php
new file mode 100644
index 000000000..25ca019e9
--- /dev/null
+++ b/lib/Videolist/PlatformInterface.php
@@ -0,0 +1,23 @@
+<?php
+
+interface Videolist_PlatformInterface {
+    /**
+     * @abstract
+     * @return string
+     */
+    public function getType();
+
+    /**
+     * @abstract
+     * @param string $url
+     * @return array
+     */
+    public function parseUrl($url);
+
+    /**
+     * @abstract
+     * @param array $parsed
+     * @return array
+     */
+    public function getData($parsed);
+}
diff --git a/lib/bliptv.php b/lib/bliptv.php
deleted file mode 100644
index f4c0f772c..000000000
--- a/lib/bliptv.php
+++ /dev/null
@@ -1,29 +0,0 @@
-<?php
-
-function videolist_parseurl_bliptv($url) {
-	$parsed = parse_url($url);
-	$path = explode('/', $parsed['path']);
-
-	if ($parsed['host'] != 'blip.tv' || count($path) < 3) {
-		return false;
-	}
-	
-	return array(
-		'videotype' => 'bliptv',
-		'video_id' => $parsed['path'],
-	);
-}
-
-function videolist_get_data_bliptv($parsed){
-	$video_id = $parsed['video_id'];
-	
-	$buffer = file_get_contents('http://blip.tv'.$video_id.'?skin=rss');
-	$xml = new SimpleXMLElement($buffer);
-	
-	return array(
-		'title' => sanitize_string(current($xml->xpath('/rss/channel/item/title'))),
-		'description' => strip_tags(current($xml->xpath('/rss/channel/item/description'))),
-		'thumbnail' => sanitize_string(current($xml->xpath('/rss/channel/item/media:thumbnail/@url'))),
-		'embedurl' => sanitize_string(current($xml->xpath('/rss/channel/item/blip:embedUrl'))),
-	);
-}
diff --git a/lib/gisstv.php b/lib/gisstv.php
deleted file mode 100644
index 24e11340a..000000000
--- a/lib/gisstv.php
+++ /dev/null
@@ -1,41 +0,0 @@
-<?php
-
-function videolist_parseurl_gisstv($url) {
-	$parsed = parse_url($url);
-	$path = explode('/', $parsed['path']);
-
-	if ($parsed['host'] != 'giss.tv' || $path[1] != 'dmmdb') {
-		return false;
-	}
-	
-	if($path[2] == 'contents' && isset($path[3])) {
-		$video_id = $path[3];
-	} elseif($path[3] == 'contents' && isset($path[4])) {
-		$video_id = $path[4];
-	} else {
-		return false;
-	}
-	
-	return array(
-		'videotype' => 'gisstv',
-		'video_id' => $video_id,
-	);
-}
-
-function videolist_get_data_gisstv($parsed){
-	$video_id = $parsed['video_id'];
-	
-	$buffer = file_get_contents('http://giss.tv/dmmdb//rss.php');
-	$xml = new SimpleXMLElement($buffer);
-	
-	$data = array();
-	foreach($xml->xpath('/rss/channel/item') as $item){
-		if(sanitize_string($item->link) == 'http://giss.tv/dmmdb//contents/'.$video_id) {
-			$data['title'] = sanitize_string($item->title);
-			$data['description'] = strip_tags($item->description);
-			$data['thumbnail'] = sanitize_string($item->thumbnail);
-			break;
-		}
-	}
-	return $data;
-}
diff --git a/lib/metacafe.php b/lib/metacafe.php
deleted file mode 100644
index 34b006a32..000000000
--- a/lib/metacafe.php
+++ /dev/null
@@ -1,29 +0,0 @@
-<?php
-
-function videolist_parseurl_metacafe($url) {
-	$parsed = parse_url($url);
-	$path = explode('/', $parsed['path']);
-
-	if ($parsed['host'] != 'www.metacafe.com' || $path[1] != 'watch' || !(int) $path[2]) {
-		return false;
-	}
-	
-	return array(
-		'videotype' => 'metacafe',
-		'video_id' => $path[2],
-	);
-}
-
-function videolist_get_data_metacafe($parsed){
-	$video_id = $parsed['video_id'];
-	
-	$buffer = file_get_contents("http://www.metacafe.com/api/item/$video_id");
-	$xml = new SimpleXMLElement($buffer);
-	
-	return array(
-		'title' => sanitize_string(current($xml->xpath('/rss/channel/item/title'))),
-		'description' => strip_tags(current($xml->xpath('/rss/channel/item/description'))),
-		'thumbnail' => sanitize_string(current($xml->xpath('/rss/channel/item/media:thumbnail/@url'))),
-		'embedurl' => sanitize_string(current($xml->xpath('/rss/channel/item/media:content/@url'))),
-	);
-}
diff --git a/lib/videolist.php b/lib/videolist.php
index ae2441847..93b27b51c 100644
--- a/lib/videolist.php
+++ b/lib/videolist.php
@@ -1,36 +1,45 @@
 <?php
 
-define('VIDEOLIST_SUPPORTED_PLATFORMS', 'youtube, vimeo, metacafe, bliptv, gisstv');
-
-foreach(explode(', ', VIDEOLIST_SUPPORTED_PLATFORMS) as $videotype){
-	include(elgg_get_plugins_path()."videolist/lib/$videotype.php");
-}
-
 /**
- * @param string $url
  * @return array
  */
-function videolist_parseurl($url){
-	foreach(explode(', ', VIDEOLIST_SUPPORTED_PLATFORMS) as $videotype){
-		if (is_callable("videolist_parseurl_$videotype")){
-			if ($parsed = call_user_func("videolist_parseurl_$videotype", $url)) {
-				return $parsed;
-			}
-		}
-	}
-	return array();
+function videolist_get_default_platforms() {
+    static $platforms = array();
+    if (! $platforms) {
+        require dirname(__FILE__) . '/Videolist/PlatformInterface.php';
+        $path = dirname(__FILE__) . '/Videolist/Platform';
+        foreach (scandir($path) as $filename) {
+            if (preg_match('/^(\\w+)\\.php$/', $filename, $m)) {
+                require "$path/$filename";
+                $class = 'Videolist_Platform_' . $m[1];
+                $platform = new $class();
+                if ($platform instanceof Videolist_PlatformInterface) {
+                    /* @var Videolist_PlatformInterface $platform */
+                    $platforms[$platform->getType()][] = $platform;
+                }
+            }
+        }
+    }
+    return $platforms;
 }
 
 /**
- * @param array $parsed
- * @return array
+ * @param string $url
+ * @return array [parsed, platform]
  */
-function videolist_get_data($parsed) {
-	$videotype = $parsed['videotype'];
-
-	if(is_callable("videolist_get_data_$videotype")){
-		return array_merge($parsed, call_user_func("videolist_get_data_$videotype", $parsed));
-	} else {
-		return $parsed;
-	}
+function videolist_parse_url($url) {
+    $parsed = parse_url($url);
+    $params['url'] = $url;
+    $platforms = videolist_get_default_platforms();
+	$platforms = elgg_trigger_plugin_hook('videolist:prepare', 'platforms', $params, $platforms);
+    foreach ($platforms as $list) {
+        foreach ($list as $platform) {
+            /* @var Videolist_PlatformInterface $platform */
+            $parsed = $platform->parseUrl($url);
+            if ($parsed) {
+                return array($parsed, $platform);
+            }
+        }
+    }
+	return false;
 }
diff --git a/lib/vimeo.php b/lib/vimeo.php
deleted file mode 100644
index 0433c5a94..000000000
--- a/lib/vimeo.php
+++ /dev/null
@@ -1,31 +0,0 @@
-<?php
-
-function videolist_parseurl_vimeo($url) {
-	$parsed = parse_url($url);
-	$path = explode('/', $parsed['path']);
-	
-	if ($parsed['host'] != 'vimeo.com' || !(int) $path[1]) {
-		return false;
-	}
-
-	return array(
-		'videotype' => 'vimeo',
-		'video_id' => $path[1],
-	);
-}
-
-function videolist_get_data_vimeo($parsed){
-	$video_id = $parsed['video_id'];
-	
-	$buffer = file_get_contents("http://vimeo.com/api/v2/video/$video_id.xml");
-	$xml = new SimpleXMLElement($buffer);
-	
-	$videos = $xml->children();
-	$video = $videos[0];
-	
-	return array(
-		'title' => sanitize_string($video->title),
-		'description' => strip_tags($video->description),
-		'thumbnail' => sanitize_string($video->thumbnail_medium),
-	);
-}
diff --git a/lib/youtube.php b/lib/youtube.php
deleted file mode 100644
index 6ed9344b0..000000000
--- a/lib/youtube.php
+++ /dev/null
@@ -1,28 +0,0 @@
-<?php
-
-function videolist_parseurl_youtube($url) {
-	$parsed = parse_url($url);
-	parse_str($parsed['query'], $query);
-	
-	if ($parsed['host'] != 'www.youtube.com' || $parsed['path'] != '/watch' || !isset($query['v'])) {
-		return false;
-	}
-	
-	return array(
-		'videotype' => 'youtube',
-		'video_id' => $query['v'],
-	);
-}
-
-function videolist_get_data_youtube($parsed){
-	$video_id = $parsed['video_id'];
-	
-	$buffer = file_get_contents('http://gdata.youtube.com/feeds/api/videos/'.$video_id);
-	$xml = new SimpleXMLElement($buffer);
-	
-	return array(
-		'title' => sanitize_string($xml->title),
-		'description' => strip_tags($xml->content),
-		'thumbnail' => "http://img.youtube.com/vi/$video_id/default.jpg",
-	);
-}
-- 
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