Dan*_*ser 7 networking ios afnetworking
为了让一些背景:我试图实现对身份验证错误(使用令牌认证,而不是基本的),一个全球性的错误处理程序,它应该尝试重新进行身份验证,然后重复原始失败的请求(参见我刚才的问题:AFNetworking:手柄全局错误并重复请求)
当前的方法是注册一个观察者,该观察者进行AFNetworkingOperationDidFinishNotification重新认证,并且(如果auth成功)重复原始请求:
- (void)operationDidFinish:(NSNotification *)notification
{
AFHTTPRequestOperation *operation = (AFHTTPRequestOperation *)[notification object];
if(![operation isKindOfClass:[AFHTTPRequestOperation class]]) {
return;
}
if(403 == [operation.response statusCode]) {
// try to re-authenticate and repeat the original request
[[UserManager sharedUserManager] authenticateWithCredentials...
success:^{
// repeat original request
// AFHTTPRequestOperation *newOperation = [operation copy]; // copies too much stuff, eg. response (although the docs suggest otherwise)
AFHTTPRequestOperation *newOperation = [[AFHTTPRequestOperation alloc] initWithRequest:operation.request];
// PROBLEM 1: newOperation has no completion blocks. How to use the original success/failure blocks here?
[self enqueueHTTPRequestOperation:newOperation];
}
failure:^(NSError *error) {
// PROBLEM 2: How to invoke failure block of original operation?
}
];
}
}
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但是,我偶然发现了一些有关请求操作完成块的问题:
重复原始请求时,我显然希望执行完成块.然而,AFHTTPRequestOperation不保留(见所传递的成功和失败块引用setCompletionBlockWithSuccess:failure:)和复制NSOperation的completionBlock可能不是一个好主意,因为对于文档AFURLConnectionOperation的状态:
操作副本不包括
completionBlock.completionBlock通常强烈地捕获一个引用self,这可能会令人惊讶,否则将指向复制时的原始操作.
如果重新验证失败,我想调用原始请求的失败块.所以,再一次,我需要直接访问它.
我在这里错过了什么吗?任何替代方法的想法?我应该提交功能请求吗?
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