Setting an ASIHTTPRequest post to a SimpleHTTPServer Python server?

Question

I am working on a project (that i will not be releasing to the app store - just for fun) that will upload an image via an HTTP Post request from my iPhone to a server that I have running the Python script SimpleHTTPServer(http://ubuntuguide.net/http-server-support-uploading-files-from-windows-in-ubuntu). I have successfully used the ASIHTTP APIs in the past for text strings, but can't for the life of me figure out how to upload an image. This is what I am currently using:

-(void)processRequest {

    ASIFormDataRequest *request = [ASIFormDataRequest requestWithURL:[NSURL URLWithString:@"mySimpleHTTPServer"]]; 
    [request setFile:[UIImage imageNamed:@"Image.png"] withFileName:@"Image.png" andContentType:@"image/png" forKey:@"file"];

    [request startSynchronous]; 
    NSLog(@"%@",[request responseString]);
    NSUserDefaults *profiles = [NSUserDefaults standardUserDefaults];
    [profiles setObject:[request responseString] forKey:@"response"];
    [profiles synchronize];

    [self performSelector:@selector(endRequest) withObject:nil afterDelay:0];

}

Really, the only part that I am assuming I am wrong about is the :

[request setFile:[UIImage imageNamed:@"Image.png"] withFileName:@"Image.png" andContentType:@"image/png" forKey:@"file"];

Any thoughts on where i could be going wrong?

Answer 1

As @SorinA. mentions, you should supply a file path as the first argument to setFile:withFileName:andContentType:forKey:. In your example, you're supplying a UIImage object instead.

The simplest fix, however, might be to just use setData:withFileName:andContentType:forKey:. You just need to convert your UIImage object to its NSData representation:

NSData *imageData = UIImagePNGRepresentation([UIImage imageNamed:@"Image.png"]);
[request setData: imageData
    withFileName: @"Image.png"
  andContentType: @"image/png"
          forKey: @"file"];

Also, your URL looks a bit odd ("mySimpleHTTPServer"), I assume this is just a placeholder for a URL in the form of "http://localhost:some_port/some_path"? Definitely confirm that your Python web server is actually seeing the request.

Answer 2

Offhand, I don't see an obvious problem, but I would try calling [request responseStatusCode] and [request responseStatusMessage] instead of [request responseString]. I'm guessing that the the response to a post would not have a string. I think it should return 200 or something like that to indicate success.

You can also try:

if(request.error) {
    NSLog("ERROR: %@",[error localizedDescription]);
}

Lastly.. I would look at ASIHTTPRequestConfig.h I'm using ASI as well, so I just peeked at it and it has some debug options that should help.

set the 0's to 1s:

DEBUG_FORM_DATA_REQUEST 1
DEBUG_REQUEST_STATUS 1

If you haven't tried those, that should give you some info.