handle app repo connection failure

admin/apps.php

@@ -36,7 +36,14 @@ if(isset($_GET['id']))  $id=$_GET['id']; else $id=0;
 if(isset($_GET['cat'])) $cat=$_GET['cat']; else $cat=0;
 
 $categories=OC_OCSCLIENT::getCategories();
+if($categories==NULL){
+	OC_APP::setActiveNavigationEntry( "core_apps" );
 
+	$tmpl = new OC_TEMPLATE( "admin", "app_noconn", "admin" );
+	$tmpl->printPage();
+	unset($tmpl);
+	exit();
+}
 /*
 
 All

admin/templates/app_noconn.php

@@ -0,0 +1,7 @@
+<?php
+/*
+ * Template for Apps when can't connect to app store
+ */
+?>
+<h1>Apps Repository</h1>
+<h2>Cannot connect to apps repository</h2>

lib/ocsclient.php

@@ -37,7 +37,10 @@ class OC_OCSCLIENT{
 	public static function getCategories(){
 		$url='http://api.apps.owncloud.com/v1/content/categories';
 	
-		$xml=file_get_contents($url);
+		$xml=@file_get_contents($url);
+		if($xml==FALSE){
+			return NULL;
+		}
 		$data=simplexml_load_string($xml);
 	
 		$tmp=$data->data;
@@ -68,7 +71,10 @@ class OC_OCSCLIENT{
 		}
 		$url='http://api.apps.owncloud.com/v1/content/data?categories='.urlencode($categoriesstring).'&sortmode=new&page=0&pagesize=10';
 		$apps=array();
-		$xml=file_get_contents($url);
+		$xml=@file_get_contents($url);
+		if($xml==FALSE){
+			return NULL;
+		}
 		$data=simplexml_load_string($xml);
 
 		$tmp=$data->data->content;
@@ -99,7 +105,10 @@ class OC_OCSCLIENT{
 	public static function getApplication($id){
 		$url='http://api.apps.owncloud.com/v1/content/data/'.urlencode($id);
 
-                $xml=file_get_contents($url);
+		$xml=@file_get_contents($url);
+		if($xml==FALSE){
+			return NULL;
+		}
 		$data=simplexml_load_string($xml);
 
 		$tmp=$data->data->content;
@@ -129,7 +138,10 @@ class OC_OCSCLIENT{
 		$url='http://api.apps.owncloud.com/v1/knowledgebase/data?type=150&page=0&pagesize=10';
 
 		$kbe=array();
-                $xml=file_get_contents($url);
+		$xml=@file_get_contents($url);
+		if($xml==FALSE){
+			return NULL;
+		}
 		$data=simplexml_load_string($xml);
 
 		$tmp=$data->data->content;