NSURLProtocol 可以与 NSURLSession upload, downloaddataTask 一起使用吗
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【中文标题】NSURLProtocol 可以与 NSURLSession upload, downloaddataTask 一起使用吗【英文标题】:can NSURLProtocol work with NSURLSession upload, downloaddataTaskNSURLProtocol 可以与 NSURLSession upload, downloaddataTask 一起使用吗 【发布时间】:2015-01-12 08:09:39 【问题描述】:我有一个自定义的 NSURLProtocol
#import <Foundation/Foundation.h>
@interface XXXURLProtocol : NSURLProtocol <NSURLSessionDataDelegate, NSURLSessionTaskDelegate>
@property (nonatomic, strong) NSURLSession *session;
@property (nonatomic, strong) NSURLSessionTask *task;
@end
#import "XXXURLProtocol.h"
@implementation DXYURLProtocol
+ (BOOL)canInitWithRequest:(NSURLRequest *)request
if ([NSURLProtocol propertyForKey:YXURLProtocolHandled inRequest:request])
return NO;
NSString *scheme = [[request URL] scheme];
NSDictionary *dict = [request allHTTPHeaderFields];
return [dict objectForKey:@"custom_header"] == nil &&
([scheme caseInsensitiveCompare:@"http"] == NSOrderedSame ||
[scheme caseInsensitiveCompare:@"https"] == NSOrderedSame);
+ (NSURLRequest *)canonicalRequestForRequest:(NSURLRequest *)request
return request;
+ (BOOL)requestIsCacheEquivalent:(NSURLRequest *)a
toRequest:(NSURLRequest *)b
return [super requestIsCacheEquivalent:a toRequest:b];
- (void)startLoading
NSMutableURLRequest *mutableReqeust = [[self request] mutableCopy];
//add custom headers
[XXXURLProtocol addCustomHeaders:mutableReqeust];
[NSURLProtocol setProperty:@(YES)
forKey:YXURLProtocolHandled
inRequest:mutableReqeust];
NSURLSessionConfiguration *config;
config = [NSURLSessionConfiguration defaultSessionConfiguration];
config.protocolClasses = @[ self ];
self.session = [NSURLSession sessionWithConfiguration:config];
self.task = [self.session dataTaskWithRequest:mutableReqeust];
[self.task resume];
- (void)stopLoading
[self.task cancel];
self.task = nil;
//and all other NSURLProtocolClient protocol method
@end
如何使这个自定义的 NSURLProtocol 支持 upload, downloaddataTask?
【问题讨论】:
嗨!你找到解决办法了吗? 【参考方案1】:你的想法是对的,但是你需要实现一些关键的 URLSessionDelegate 方法来将响应和数据传递给 NSURLProtocol 客户端:
-(void)URLSession:(NSURLSession *)session task:(NSURLSessionTask *)task didCompleteWithError:(NSError *)error
if( error )
[self.client URLProtocol:self didFailWithError:error];
else
[self.client URLProtocolDidFinishLoading:self];
-(void)URLSession:(NSURLSession *)session dataTask:(NSURLSessionDataTask *)dataTask didReceiveResponse:(NSURLResponse *)response completionHandler:(void (^)(NSURLSessionResponseDisposition))completionHandler
[self.client URLProtocol:self didReceiveResponse:response cacheStoragePolicy:NSURLCacheStorageNotAllowed];
completionHandler(NSURLSessionResponseAllow);
-(void)URLSession:(NSURLSession *)session dataTask:(NSURLSessionDataTask *)dataTask didReceiveData:(NSData *)data
[self.client URLProtocol:self didLoadData:data];
【讨论】:
上传或下载任务需要uploadTask和downloadTask怎么办 @dopcn 你有没有想过如何让它使用uploadTask和downloadTask?以上是关于NSURLProtocol 可以与 NSURLSession upload, downloaddataTask 一起使用吗的主要内容,如果未能解决你的问题,请参考以下文章
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