How to POST an audio file via NSURLConnection iPhone? - iphone

Question

I tried a dozen things. But am not receiving results. I want to convert an audio file wav/mp3 to byte array or otherwise and send it to a php server. Following are few things i tried that are already listed in SO. please help.
NSURL *urlPath = [NSURL fileURLWithPath: [[NSBundle mainBundle] pathForResource:#"r2d2" ofType:#"mp3"]];
NSString *wavbundlepath = [urlPath absoluteString];
NSData *data = [NSData dataWithContentsOfURL:[NSURL URLWithString:wavbundlepath]];
NSUInteger len = data.length;
int8_t *bytes = (int8_t *)[data bytes];
NSMutableString *result = [NSMutableString stringWithCapacity:len];
[result appendString:#"["];
for (NSUInteger i = 0; i < len; i++) {
if (i) {
[result appendString:#","];
}
[result appendFormat:#"%d", bytes[i]];
}
[result appendString:#"]"];
NSString *urlString = #"http://apps2.mobiiworld.com/staging/krafttesting/";
// setting up the request object now
NSMutableURLRequest *request = [[[NSMutableURLRequest alloc] init] autorelease];
[request setURL:[NSURL URLWithString:urlString]];
[request setHTTPMethod:#"POST"];
NSData* dataSend = [result dataUsingEncoding:NSUTF8StringEncoding];
[request setHTTPBody:dataSend];
NSURLResponse *response;
NSError *err;
NSData *responseData2 = [NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&err];
NSLog(#"responseData: %#", responseData2);
next
NSURL *urlPath = [NSURL fileURLWithPath: [[NSBundle mainBundle] pathForResource:#"r2d2" ofType:#"mp3"]];
NSString *wavbundlepath = [urlPath absoluteString];
NSData *data = [NSData dataWithContentsOfURL:[NSURL URLWithString:wavbundlepath]];NSMutableURLRequest *request = [[[NSMutableURLRequest alloc] init] autorelease];
[request setURL:[NSURL URLWithString:urlString]];
[request setHTTPMethod:#"POST"];
/*
add some header info now
we always need a boundary when we post a file
also we need to set the content type
You might want to generate a random boundary.. this is just the same
as my output from wireshark on a valid html post
*/
NSString *boundary = [NSString stringWithString:#"---------------------------14737809831466499882746641449"];
NSString *contentType = [NSString stringWithFormat:#"multipart/form-data; boundary=%#",boundary];
[request addValue:contentType forHTTPHeaderField: #"Content-Type"];
/*
now lets create the body of the post
*/
NSMutableData *body = [NSMutableData data];
[body appendData:[[NSString stringWithFormat:#"\r\n--%#\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]];
NSString *filename = #"file";
[body appendData:[[NSString stringWithFormat:#"Content-Disposition: form-data; name=\"userfile\";filename=\"%#\"\r\n", filename] dataUsingEncoding:NSUTF8StringEncoding]];
// NSLog([NSString stringWithFormat:#"Content-Disposition: form-data; name=\"userfile\";filename=\"%#\"\r\n", filename]);
//[body appendData:[[NSString stringWithString:#"test"] dataUsingEncoding:NSUTF8StringEncoding]];
//[body appendData:[[NSString stringWithString:#"\r\n"] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[[NSString stringWithString:#"Content-Type: application/octet-stream\r\n\r\n"] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[NSData dataWithData:data]];
[body appendData:[[NSString stringWithFormat:#"\r\n--%#--\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]];
// setting the body of the post to the reqeust
[request setHTTPBody:body];
// now lets make the connection to the web
NSData *returnData = [NSURLConnection sendSynchronousRequest:request returningResponse:nil error:nil];
NSString *returnString = [[NSString alloc] initWithData:returnData encoding:NSUTF8StringEncoding];
NSLog(#"Return : %#", returnString);
The php developer says that he is not receiving any data whatsoever. And he has echoed whatever he receives, but i find a Null string in response. Can anyone please suggest what to do?

Answer 1

This is how i am doing it
NSData *audioData = Here comes your NSData;
NSString *urlString = #"The url of php file";
NSMutableURLRequest *request = [[[NSMutableURLRequest alloc] init] autorelease];
[request setURL:[NSURL URLWithString:urlString]];
[request setHTTPMethod:#"POST"];
NSString *boundary = #"---------------------------14737809831466499882746641449";
NSString *contentType = [NSString stringWithFormat:#"multipart/form-data; boundary=%#", boundary];
[request addValue:contentType forHTTPHeaderField:#"Content-Type"];
NSMutableData *body = [NSMutableData data];
[body appendData:[[NSString stringWithFormat:#"\r\n--%#\r\n", boundary] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[[NSString stringWithFormat:#"Content-Disposition: form-data; name=\"userfile\"; filename=\".caf\"\r\n"] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[[NSString stringWithFormat:#"Content-Type: application/octet-stream\r\n\r\n"] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[NSData dataWithData:audioData]];
[body appendData:[[NSString stringWithFormat:#"\r\n--%#--\r\n", boundary] dataUsingEncoding:NSUTF8StringEncoding]];
[request setHTTPBody:body];
NSData *returnData = [NSURLConnection sendSynchronousRequest:request returningResponse:nil error:nil];
NSLog(#"Length : %d", returnData.length);
NSString *returnString = [[NSString alloc] initWithData:returnData encoding:NSUTF8StringEncoding];
NSLog(#"Return String %#", returnString);
There is another way via ASIHTTPRequest
NSURL *url = [NSURL URLWithString:#"the url comes here"];
ASIFormDataRequest *formRequest = [[[ASIFormDataRequest alloc] initWithURL:url] autorelease];
NSData *imageData = UIImageJPEGRepresentation([self scaleAndRotateImage:self.m_ImageViewProfile.image], 90);
NSLog(#"Size : %d", imageData.length);
[formRequest setTimeOutSeconds:600];
[formRequest setPostValue:#"If there is any"] forKey:#"the key"];
[formRequest setData:imageData withFileName:#"myphoto.jpg" andContentType:#"image/jpeg" forKey:#"filename"];
//[formRequest setUploadProgressDelegate:progressView];
[formRequest setCompletionBlock:^{
NSString *responseString = [formRequest responseString];
NSLog(#"Response: %#", responseString);
}];
[formRequest setFailedBlock:^{
NSError *error = [formRequest error];
NSLog(#"Error: %#", error.localizedDescription);
}];
[formRequest startSynchronous];
See if it is what you want