Hello guys!
I have found on the twitter-site this faq:
> The image update methods require multipart form data. They do not accept a
> URL to an image not do they accept the raw image bytes. They instead require
> the data to be delivered in the form of a file upload filed as defined in
> RFC1867. The content-type attribute of the image field is checked for valid
> image type. If you are using PHP/CURL there is a known bug that has since
> been fixed in the CVS version of PHP. Most installations are not yet using
> this version and therefore fail during image upload.
I wrote a little code to upload a profile image to my twitter, but
somethings wrong.
Here's my code:
- (void)uploadProfileImage {
UIImage *myImage = [UIImage imageNamed:@"pic1.png"];
NSData *myImageData = [[NSData alloc]
initWithData:UIImagePNGRepresentation(myImage)];
NSString *bodyString = [NSString stringWithFormat:@"image=%@",
[[[NSString alloc] initWithData:myImageData
encoding:NSUTF8StringEncoding] autorelease]];
NSString *apiUrl = @"http://twitter.com/account/
update_profile_image.json";
NSURL *url = [NSURL URLWithString:apiUrl];
NSMutableURLRequest *updateRequest = [NSMutableURLRequest
requestWithURL:url
cachePolicy:NSURLRequestReloadIgnoringCacheData
timeoutInterval:TWITTER_SEND_UPDATE_TIMEOUT];
[updateRequest setHTTPShouldHandleCookies:NO];
[updateRequest setHTTPMethod:@"POST"];
[updateRequest setValue:@"application/x-www-form-urlencoded"
forHTTPHeaderField:@"Content-Type"];
[updateRequest setHTTPBody:[bodyString
dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES]];
[updateRequest setValue:[NSString stringWithFormat:@"%d", [bodyString
length]] forHTTPHeaderField:@"Content-Length"];
NSLog(@"Trying to connect...");
NSURLConnection *theConnection = [[NSURLConnection alloc]
initWithRequest:updateRequest delegate:self];
if (theConnection) {
//_receivedData = [[NSMutableData data] retain];
NSLog(@"Connected!");
} else {
NSLog(@"Not connected!");
// Inform the user that the download could not be made
}
}
And one more method needed:
- (void)connection:(NSURLConnection *)connection
didReceiveAuthenticationChallenge:(NSURLAuthenticationChallenge *)
challenge {
if ([challenge previousFailureCount] == 0) {
NSURLCredential *newCredential = [NSURLCredential
credentialWithUser:@"username" password:@"password"
persistence:NSURLCredentialPersistenceNone];
[[challenge sender] useCredential:newCredential
forAuthenticationChallenge:challenge];
} else {
[[challenge sender] cancelAuthenticationChallenge:challenge];
NSLog(@"Invalid username and password!");
}
}
And with this method I am receiving the information from twitter:
- (void)connection:(NSURLConnection *)connection didReceiveData:
(NSData *)data {
NSLog([[[NSString alloc] initWithData:data
encoding:NSASCIIStringEncoding] autorelease]);
}
But I am getting some strange error. The response isn't a json answer,
it is a html-like answer. Maybe do you have any idea why is that?
