Add a fake window.navigator object in the JavaScript context

The JavaScript execution of the player script would fail with
`TypeError: undefined is not an object (evaluating 'window.navigator.j')`
before it could evaluate the parts required to descramble the signature.

Fixes 0xced#144

CHANGELOG.md

@@ -1,3 +1,7 @@
+#### Version 2.1.3
+
+* Adaptation to YouTube API change. (#144)
+
 #### Version 2.1.2
 
 * Fixed playback of some protected videos. (#122)

README.md

@@ -50,7 +50,7 @@ These steps will ensure that `#import <XCDYouTubeKit/XCDYouTubeKit.h>` will work
 **Warning**: If you use the iOS static library and you are targeting iOS 7, add the JavaScriptCore framework. If you are targeting iOS 5 or 6, you must add the following *Other Linker Flags* instead to your app:
 
 ```
--Wl,-U,_JSContextGetGlobalObject -Wl,-U,_JSEvaluateScript -Wl,-U,_JSGlobalContextCreate -Wl,-U,_JSGlobalContextRelease -Wl,-U,_JSObjectCallAsFunction -Wl,-U,_JSObjectGetPrototype -Wl,-U,_JSObjectIsFunction -Wl,-U,_JSObjectSetProperty -Wl,-U,_JSStringCopyCFString -Wl,-U,_JSStringCreateWithCFString -Wl,-U,_JSStringRelease -Wl,-U,_JSValueIsObject -Wl,-U,_JSValueIsString -Wl,-U,_JSValueMakeString -Wl,-U,_JSValueToStringCopy
+-Wl,-U,_JSContextGetGlobalObject -Wl,-U,_JSEvaluateScript -Wl,-U,_JSGlobalContextCreate -Wl,-U,_JSGlobalContextRelease -Wl,-U,_JSObjectCallAsFunction -Wl,-U,_JSObjectIsFunction -Wl,-U,_JSObjectMake -Wl,-U,_JSObjectSetProperty -Wl,-U,_JSStringCopyCFString -Wl,-U,_JSStringCreateWithCFString -Wl,-U,_JSStringRelease -Wl,-U,_JSValueIsObject -Wl,-U,_JSValueIsString -Wl,-U,_JSValueMakeString -Wl,-U,_JSValueToStringCopy
 ```
 
 See my [JavaScriptCore framework availability on iOS](http://stackoverflow.com/questions/23514579/javascriptcore-framework-availability-on-ios/23514580#23514580) answer on Stack Overflow for a complete explanation.

XCDYouTubeKit Demo/XCDYouTubeKit Demo.xcodeproj/project.pbxproj

@@ -507,8 +507,8 @@
 					"-Wl,-U,_JSGlobalContextCreate",
 					"-Wl,-U,_JSGlobalContextRelease",
 					"-Wl,-U,_JSObjectCallAsFunction",
-					"-Wl,-U,_JSObjectGetPrototype",
 					"-Wl,-U,_JSObjectIsFunction",
+					"-Wl,-U,_JSObjectMake",
 					"-Wl,-U,_JSObjectSetProperty",
 					"-Wl,-U,_JSStringCopyCFString",
 					"-Wl,-U,_JSStringCreateWithCFString",
@@ -538,8 +538,8 @@
 					"-Wl,-U,_JSGlobalContextCreate",
 					"-Wl,-U,_JSGlobalContextRelease",
 					"-Wl,-U,_JSObjectCallAsFunction",
-					"-Wl,-U,_JSObjectGetPrototype",
 					"-Wl,-U,_JSObjectIsFunction",
+					"-Wl,-U,_JSObjectMake",
 					"-Wl,-U,_JSObjectSetProperty",
 					"-Wl,-U,_JSStringCopyCFString",
 					"-Wl,-U,_JSStringCreateWithCFString",

XCDYouTubeKit.podspec

@@ -14,7 +14,7 @@ Pod::Spec.new do |s|
   s.public_header_files   = "XCDYouTubeKit/XCDYouTube{Client,Error,Kit,Operation,Video,VideoOperation,VideoPlayerViewController}.h"
   s.osx.exclude_files     = "XCDYouTubeKit/XCDYouTubeVideoPlayerViewController.{h,m}"
   s.ios.frameworks        = "MediaPlayer"
-  s.ios.xcconfig          = { "OTHER_LDFLAGS" => "-Wl,-U,_JSContextGetGlobalObject -Wl,-U,_JSEvaluateScript -Wl,-U,_JSGlobalContextCreate -Wl,-U,_JSGlobalContextRelease -Wl,-U,_JSObjectCallAsFunction -Wl,-U,_JSObjectGetPrototype -Wl,-U,_JSObjectIsFunction -Wl,-U,_JSObjectSetProperty -Wl,-U,_JSStringCopyCFString -Wl,-U,_JSStringCreateWithCFString -Wl,-U,_JSStringRelease -Wl,-U,_JSValueIsObject -Wl,-U,_JSValueIsString -Wl,-U,_JSValueMakeString -Wl,-U,_JSValueToStringCopy" }
+  s.ios.xcconfig          = { "OTHER_LDFLAGS" => "-Wl,-U,_JSContextGetGlobalObject -Wl,-U,_JSEvaluateScript -Wl,-U,_JSGlobalContextCreate -Wl,-U,_JSGlobalContextRelease -Wl,-U,_JSObjectCallAsFunction -Wl,-U,_JSObjectIsFunction -Wl,-U,_JSObjectMake -Wl,-U,_JSObjectSetProperty -Wl,-U,_JSStringCopyCFString -Wl,-U,_JSStringCreateWithCFString -Wl,-U,_JSStringRelease -Wl,-U,_JSValueIsObject -Wl,-U,_JSValueIsString -Wl,-U,_JSValueMakeString -Wl,-U,_JSValueToStringCopy" }
   s.osx.frameworks        = "JavaScriptCore"
   s.requires_arc          = true
 end

XCDYouTubeKit/XCDYouTubePlayerScript.m

@@ -33,13 +33,18 @@ - (instancetype) initWithString:(NSString *)string
 
 	_context = JSGlobalContextCreate(NULL);
 
-	for (NSString *propertyName in @[ @"window", @"document", @"navigator" ])
+	for (NSString *propertyPath in @[ @"window.navigator", @"document", @"navigator" ])
 	{
-		JSObjectRef globalObject = JSContextGetGlobalObject(_context);
-		JSStringRef propertyNameRef = JSStringCreateWithCFString((__bridge CFStringRef)propertyName);
-		JSValueRef dummyValueRef = JSObjectGetPrototype(_context, globalObject);
-		JSObjectSetProperty(_context, globalObject, propertyNameRef, dummyValueRef, 0, NULL);
-		JSStringRelease(propertyNameRef);
+		JSObjectRef object = JSContextGetGlobalObject(_context);
+		for (NSString *propertyName in [propertyPath componentsSeparatedByString:@"."])
+		{
+			JSStringRef propertyNameRef = JSStringCreateWithCFString((__bridge CFStringRef)propertyName);
+			JSObjectRef defaultObject = JSObjectMake(_context, NULL, NULL);
+			JSObjectSetProperty(_context, object, propertyNameRef, defaultObject, 0, NULL);
+			JSStringRelease(propertyNameRef);
+
+			object = defaultObject;
+		}
 	}
 
 	JSStringRef scriptRef = JSStringCreateWithCFString((__bridge CFStringRef)script);