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| import Foundation | |
| let session = NSURLSession.sharedSession() | |
| let requestIsBeingHandledKey = "RequestIsBeingHandledKey" | |
| class CustomNSURLProtocol: NSURLProtocol { | |
| override class func canInitWithRequest(request: NSURLRequest) -> Bool { | |
| if NSURLProtocol.propertyForKey(requestIsBeingHandledKey, inRequest: request) != nil { | |
| return false // Prevent recursize loop | |
| } | |
| return false // Add condition here | |
| } | |
| 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 = request.mutableCopy() as! NSMutableURLRequest | |
| NSURLProtocol.setProperty(true, forKey: requestIsBeingHandledKey, inRequest: newRequest) | |
| session.dataTaskWithRequest(newRequest) { data, response, error in | |
| if let error = error { | |
| self.client!.URLProtocol(self, didFailWithError: error) | |
| } else if let data = data { | |
| self.completeRequestWithData(data) | |
| } else { | |
| fatalError("Data is nil") | |
| } | |
| }.resume() | |
| } | |
| override func stopLoading() { } | |
| private func completeRequestWithData(data: NSData) { | |
| self.client!.URLProtocol(self, didReceiveResponse: NSHTTPURLResponse(URL: request.URL!, statusCode: 200, HTTPVersion: nil, headerFields: nil)!, cacheStoragePolicy: .NotAllowed) | |
| self.client!.URLProtocol(self, didLoadData: data) | |
| self.client!.URLProtocolDidFinishLoading(self) | |
| } | |
| } |
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