Archive Project

Notifications for YouTube/NYTUtil.m

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+//
+//  NYTUtil.m
+//  Notifications for YouTube
+//
+//  Created by Kim Wittenburg on 21.07.13.
+//  Copyright (c) 2013 Kim Wittenburg. All rights reserved.
+//
+
+#import "NYTUtil.h"
+
+// API Imports
+#import "GTMOAuth2Authentication.h"
+
+// Core Imports
+#import "NYTAuthentication.h"
+
+extern NSXMLDocument * LoadXMLDocumentSynchronous(NSString *url, GTMOAuth2Authentication *auth, NSError **outError)
+{
+    // Group to wait for refresh of token (if neccessary)
+    dispatch_group_t group = dispatch_group_create();
+    dispatch_group_enter(group);
+
+    // Create the request; authenticate and authorize it.
+    NSURL *actualURL = [NSURL URLWithString:url];
+    NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:actualURL];
+    [request setValue:DeveloperKey forHTTPHeaderField:DeveloperKeyHTTPHeaderField];
+    dispatch_sync(dispatch_get_main_queue(), ^{
+        // Seems that authorization must be performed on the main queue
+        [auth authorizeRequest:request completionHandler:^(NSError *error) {
+            if (outError != NULL) {
+                *outError = error;
+            }
+            dispatch_group_leave(group);
+        }];
+    });
+
+    // Wait for authorization
+    dispatch_group_wait(group, DISPATCH_TIME_FOREVER);
+    if (*outError) {
+        // The authorization failed
+        return nil;
+    }
+
+    // Create the document
+    NSData *data = [NSURLConnection sendSynchronousRequest:request returningResponse:NULL error:outError];
+    if (!data) {
+        return nil;
+    }
+    NSXMLDocument *document = [[NSXMLDocument alloc] initWithData:data options:NSXMLDocumentTidyXML error:outError];
+    return document;
+
+}