如何用theos钩住NSURLSession方法? [英] How to hook NSURLSession methods with theos?

问题描述

我使用 rpetrich的theos 创建了一个调整项目，并想钩住NSURLSession方法，但是钩子没有似乎被调用了?为什么?这是我的Tweak.xm代码:

I created a tweak project using rpetrich's theos and wanted to hook NSURLSession methods but the hooks don't seem to get invoked? Why? This is my Tweak.xm code:

%hook NSURLSession

- (NSURLSessionDataTask *)dataTaskWithRequest:(NSURLRequest *)request
                            completionHandler:(void (^)(NSData *data, NSURLResponse *response, NSError *error))completionHandler
{
    NSLog(@"testhook dataTaskWithRequest:completionHandler:");
    return %orig(request, completionHandler);
}

- (NSURLSessionDataTask *)dataTaskWithRequest:(NSURLRequest *)request
{
    NSLog(@"testhook dataTaskWithRequest");
    return %orig(request);
}

%end

%hook NSMutableURLRequest

+ (id)requestWithURL:(NSURL *)URL
{
    NSLog(@"testhook NSMutableURLRequest");
    return %orig(URL);
}

%end

我添加了NSMutableURLRequest钩子，以确保已加载文件和整个调整.我可以验证它确实钩住了requestWithURL:，但没有钩住任何NSURLSession方法.我正在针对 NSURLSessionExample 中的代码进行测试.

I added the NSMutableURLRequest hook to make sure that the file and the whole tweak was being loaded. I can verify that it does hook requestWithURL: but not any of the NSURLSession methods. I am testing against the code from NSURLSessionExample.

这里缺少什么?有人成功钩住了NSURLSession吗?

What's missing here? Has anybody successfully hooked NSURLSession?

推荐答案

NSURLSession是一个类集群，您将钩住不包含(或很少有)代码的顶级类.

NSURLSession is a class cluster, and you are hooking the toplevel class that contains no (or scarce little) code.

您应该研究NSURLSession的子类，有可能通过就地记录NSURLSession对象的真实类来进行研究.在有限的测试中，我收到了一个对象，该对象的类实际上名为__NSURLSessionLocal.

You should investigate the subclasses of NSURLSession—potentially by logging the real class of an NSURLSession object in-situ. In my limited testing, I received an object whose class was truly named __NSURLSessionLocal.

这篇关于如何用theos钩住NSURLSession方法?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！