NSURLProtocol and post upload progress

Question

I am using a subclass of NSURLProtocol to intercept all HTTP calls and modify the user agent as well as add a other http headers required by my server.

-(id)initWithRequest:(NSURLRequest *)request
      cachedResponse:(NSCachedURLResponse *)cachedResponse
              client:(id <NSURLProtocolClient>)client
{
    NSMutableURLRequest* lInnerRequest;
    //************************************************

    lInnerRequest = [request mutableCopy];
    [lInnerRequest setValue:@"MyUserAgent" forHTTPHeaderField:@"User-Agent"];

    //************************************************
    self = [super initWithRequest:lInnerRequest
                   cachedResponse:cachedResponse
                           client:client];
    //************************************************
    if (self) 
    {
        self.innerRequest = lInnerRequest;  
    }
    //***********************************00*************
    [lInnerRequest release];
    //************************************************
    return self;
}

My protocol then uses an NSURLConnection

- (void)startLoading
{
self.URLConnection = [NSURLConnection connectionWithRequest:self.innerRequest delegate:self];
}

I then implement all the delegate method in the NSURLConnection by forwarding the call to the equivalent NSURLProtocolClient method. This works well in general but when I am uploading data to the server, my code which is using NSURLConnection does not get called back on:

connection:didSendBodyData:totalBytesWritten:totalBytesExpectedToWrite:

I understand why this is since I didn't implement that method in the NSURLProtocol as there are no equivalent NSURLProtocolClient method which can be used to report upload progress.

Has someone found any workaround for this?

this is a very interesting problem. did you ever find out a way to do this? — jasongregori, Mar 18 '13 at 22:30
Having the same problem with the exact same use case. Does anyone know any workarounds? — nyi, Nov 21 '14 at 15:45

score 0 · Answer 1 · answered Feb 07 '12 at 16:22

0

add this line to your code to make it a HTTP POST request:

[lInnerRequest setHTTPMethod:@"POST"];

answered Feb 07 '12 at 16:22

Saurabh Passolia

8,099
1
26
41

This does not work. in any case `lInnerRequest = [request mutableCopy];` should have copied the method – terrinecold Mar 13 '12 at 20:03

score -1 · Answer 2 · edited Apr 05 '16 at 12:05

-1

Use setProperty:forKey:inRequest: to save NSURLConnection and delegate object, then use propertyForKey:inRequest: to load NSURLConnection object and delegate object in custom NSURLProtocol class, when data sent, use the NSURLConnection object and delegate to call the delegate method

edited Apr 05 '16 at 12:05

msp

3,272
7
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49

answered Apr 05 '16 at 11:28

Liam.Li

1

NSURLProtocol and post upload progress

2 Answers2