NSURLSession ile Özel NSURLProtocol

Question

NSURLConnection ile özel bir NSURLProtocol uygulayan bu eğiticiyi uygulamaya çalışıyorum. beklendiği gibi

https://www.raywenderlich.com/76735/using-nsurlprotocol-swift

O, ama şimdi NSURLConnection iOS9 önerilmiyor, ben NSURLSession dönüştürmek çalışıyorum çalışır.

Talihsizce işe yaramadı.

uiwebview'de bir web sitesi yüklüyorum, eğer NSURLConnection kullanırsam yükler yükler ve her şey beklendiği gibi çalışırsa, web görünümünün tüm http istekleri yakalanır, ancak NSURLSession kullanıldığında değil.

Herhangi bir yardım için teşekkür ederiz.

burada kendi koduyla yaşıyorsanız sorun size veri görevi içerecek şekilde NSURLSession.sharedSession kullanıyor olmasıdır kodum

import UIKit 

    class MyProtocol: NSURLProtocol, NSURLSessionDataDelegate, NSURLSessionTaskDelegate, NSURLSessionDelegate { 

    //var connection: NSURLConnection! 
    var mutableData: NSMutableData! 
    var response: NSURLResponse! 

    var dataSession: NSURLSessionDataTask! 

    override class func canInitWithRequest(request: NSURLRequest) -> Bool { 

     if NSURLProtocol.propertyForKey("MyURLProtocolHandledKey", inRequest: request) != nil { 
      return false 
     } 

     return true 
    } 

    override class func canonicalRequestForRequest(request: NSURLRequest) -> NSURLRequest { 
     return request 
    } 

    override class func requestIsCacheEquivalent(aRequest: NSURLRequest, 
     toRequest bRequest: NSURLRequest) -> Bool { 
      return super.requestIsCacheEquivalent(aRequest, toRequest:bRequest) 
    } 

    override func startLoading() { 
     let newRequest = self.request.mutableCopy() as! NSMutableURLRequest 
     NSURLProtocol.setProperty(true, forKey: "MyURLProtocolHandledKey", inRequest: newRequest) 

     self.dataSession = NSURLSession.sharedSession().dataTaskWithRequest(newRequest) 

     dataSession.resume() 
     self.mutableData = NSMutableData() 
    } 

     override func stopLoading() { 

     print("Data task stop") 
     self.dataSession.cancel() 
     self.mutableData = nil 

    } 

    func URLSession(session: NSURLSession, dataTask: NSURLSessionDataTask, didReceiveResponse response: NSURLResponse, completionHandler: (NSURLSessionResponseDisposition) -> Void) { 
     self.response = response 
     self.mutableData = NSMutableData() 
     print(mutableData) 
    } 

    func URLSession(session: NSURLSession, dataTask: NSURLSessionDataTask, didReceiveData data: NSData) { 
     self.client?.URLProtocol(self, didLoadData: data) 
     self.mutableData.appendData(data) 
    } 

    func URLSession(session: NSURLSession, task: NSURLSessionTask, didCompleteWithError error: NSError?) { 
     if (error == nil) 
     { 
      self.client!.URLProtocolDidFinishLoading(self) 
      self.saveCachedResponse() 
     } 
     else 
     { 
      self.client?.URLProtocol(self, didFailWithError: error!) 
     } 
    } 

    func saveCachedResponse() { 
     let timeStamp = NSDate() 
     let urlString = self.request.URL?.absoluteString 
     let dataString = NSString(data: self.mutableData, encoding: NSUTF8StringEncoding) as NSString? 
     print("TiemStamp:\(timeStamp)\nURL: \(urlString)\n\nDATA:\(dataString)\n\n") 
    } 


    } 

Answer 1

Bunu çözdüm.

Kimin buna ihtiyacı varsa, buradaki kod.

import Foundation 

class MyProtocol1: NSURLProtocol, NSURLSessionDataDelegate, NSURLSessionTaskDelegate 
{ 
private var dataTask:NSURLSessionDataTask? 
private var urlResponse:NSURLResponse? 
private var receivedData:NSMutableData? 

class var CustomKey:String { 
    return "myCustomKey" 
} 

// MARK: NSURLProtocol 

override class func canInitWithRequest(request: NSURLRequest) -> Bool { 
    if (NSURLProtocol.propertyForKey(MyProtocol1.CustomKey, inRequest: request) != nil) { 
     return false 
    } 

    return true 
} 

override class func canonicalRequestForRequest(request: NSURLRequest) -> NSURLRequest { 
    return request 
} 

override func startLoading() { 

    let newRequest = self.request.mutableCopy() as! NSMutableURLRequest 

    NSURLProtocol.setProperty("true", forKey: MyProtocol1.CustomKey, inRequest: newRequest) 

    let defaultConfigObj = NSURLSessionConfiguration.defaultSessionConfiguration() 
    let defaultSession = NSURLSession(configuration: defaultConfigObj, delegate: self, delegateQueue: nil) 

    self.dataTask = defaultSession.dataTaskWithRequest(newRequest) 
    self.dataTask!.resume() 

} 

override func stopLoading() { 
    self.dataTask?.cancel() 
    self.dataTask  = nil 
    self.receivedData = nil 
    self.urlResponse = nil 
} 

// MARK: NSURLSessionDataDelegate 

func URLSession(session: NSURLSession, dataTask: NSURLSessionDataTask, 
       didReceiveResponse response: NSURLResponse, 
            completionHandler: (NSURLSessionResponseDisposition) -> Void) { 

    self.client?.URLProtocol(self, didReceiveResponse: response, cacheStoragePolicy: .NotAllowed) 

    self.urlResponse = response 
    self.receivedData = NSMutableData() 

    completionHandler(.Allow) 
} 

func URLSession(session: NSURLSession, dataTask: NSURLSessionDataTask, didReceiveData data: NSData) { 
    self.client?.URLProtocol(self, didLoadData: data) 

    self.receivedData?.appendData(data) 
} 

// MARK: NSURLSessionTaskDelegate 

func URLSession(session: NSURLSession, task: NSURLSessionTask, didCompleteWithError error: NSError?) { 
    if error != nil && error!.code != NSURLErrorCancelled { 
     self.client?.URLProtocol(self, didFailWithError: error!) 
    } else { 
     saveCachedResponse() 
     self.client?.URLProtocolDidFinishLoading(self) 
    } 
} 

// MARK: Private methods 

/** 
Do whatever with the data here 
*/ 
func saveCachedResponse() { 
    let timeStamp = NSDate() 
    let urlString = self.request.URL?.absoluteString 
    let dataString = NSString(data: self.receivedData!, encoding: NSUTF8StringEncoding) as NSString? 
    print("TimeStamp:\(timeStamp)\nURL: \(urlString)\n\nDATA:\(dataString)\n\n") 
} 


} 

Answer 2

olduğunu. Paylaşılan oturumu kullanarak oturum temsilcisini değiştiremezsiniz, böylece delege rutinlerinin hiçbiri çalıştırılamaz.

Oturumunuz için temsilci olarak kurulan protokolünüzle özel bir oturum oluşturmanız gerekir. Daha sonra, yüklemeye başlamanız istendiğinde, bu oturumda bir veri görevi oluşturabilirsiniz.

Answer 3

Swift 3 versiyon:

// CustomURLProtocol.swift 

class CustomURLProtocol: URLProtocol, URLSessionDataDelegate, URLSessionTaskDelegate { 
    private var dataTask: URLSessionDataTask? 
    private var urlResponse: URLResponse? 
    private var receivedData: NSMutableData? 

    class var CustomHeaderSet: String { 
     return "CustomHeaderSet" 
    } 

    // MARK: NSURLProtocol 

    override class func canInit(with request: URLRequest) -> Bool { 
     guard let host = request.url?.host, host == "your domain.com" else { 
      return false 
     } 
     if (URLProtocol.property(forKey: CustomURLProtocol.CustomHeaderSet, in: request as URLRequest) != nil) { 
      return false 
     } 

     return true 
    } 

    override class func canonicalRequest(for request: URLRequest) -> URLRequest { 
     return request 
    } 

    override func startLoading() { 

     let mutableRequest = NSMutableURLRequest.init(url: self.request.url!, cachePolicy: NSURLRequest.CachePolicy.useProtocolCachePolicy, timeoutInterval: 240.0)//self.request as! NSMutableURLRequest 

     //Add User Agent 

     var userAgentValueString = "myApp" 
    mutableRequest.setValue(userAgentValueString, forHTTPHeaderField: "User-Agent") 

     print(mutableRequest.allHTTPHeaderFields ?? "") 
     URLProtocol.setProperty("true", forKey: CustomURLProtocol.CustomHeaderSet, in: mutableRequest) 
     let defaultConfigObj = URLSessionConfiguration.default 
     let defaultSession = URLSession(configuration: defaultConfigObj, delegate: self, delegateQueue: nil) 
     self.dataTask = defaultSession.dataTask(with: mutableRequest as URLRequest) 
     self.dataTask!.resume() 

    } 

    override func stopLoading() { 
     self.dataTask?.cancel() 
     self.dataTask  = nil 
     self.receivedData = nil 
     self.urlResponse = nil 
    } 

    // MARK: NSURLSessionDataDelegate 

    func urlSession(_ session: URLSession, dataTask: URLSessionDataTask, 
        didReceive response: URLResponse, 
        completionHandler: @escaping (URLSession.ResponseDisposition) -> Void) { 

     self.client?.urlProtocol(self, didReceive: response, cacheStoragePolicy: .notAllowed) 

     self.urlResponse = response 
     self.receivedData = NSMutableData() 

     completionHandler(.allow) 
    } 

    func urlSession(_ session: URLSession, dataTask: URLSessionDataTask, didReceive data: Data) { 
     self.client?.urlProtocol(self, didLoad: data as Data) 

     self.receivedData?.append(data as Data) 
    } 

    // MARK: NSURLSessionTaskDelegate 

    func urlSession(_ session: URLSession, task: URLSessionTask, didCompleteWithError error: Error?) { 
     if error != nil { //&& error.code != NSURLErrorCancelled { 
      self.client?.urlProtocol(self, didFailWithError: error!) 
     } else { 
      //saveCachedResponse() 
      self.client?.urlProtocolDidFinishLoading(self) 
     } 
    } 
}