+- (void)submitTrack:(NSString *)title artist:(NSString *)artist album:(NSString *)album length:(int)length
+{
+ ITDebugLog(@"Audioscrobbler: Adding a new track to the submission queue.");
+ NSDictionary *newTrack = [NSDictionary dictionaryWithObjectsAndKeys:title,
+ @"title",
+ artist,
+ @"artist",
+ (album == nil) ? @"" : album,
+ @"album",
+ [NSString stringWithFormat:@"%i", length],
+ @"length",
+ [[NSDate date] descriptionWithCalendarFormat:@"%Y-%m-%d %H:%M:%S" timeZone:nil locale:nil],
+ @"time",
+ nil, nil];
+ [_tracks addObject:newTrack];
+ [self submitTracks];
+}
+
+- (void)submitTracks
+{
+ if (!_handshakeCompleted) {
+ [self attemptHandshake:NO];
+ return;
+ }
+
+ NSString *user = [[NSUserDefaults standardUserDefaults] stringForKey:@"audioscrobblerUser"], *passString = [PreferencesController getKeychainItemPasswordForUser:user];
+ char *pass = (char *)[passString UTF8String];
+
+ if (passString == nil) {
+ ITDebugLog(@"Audioscrobbler: Access denied to user password");
+ return;
+ }
+
+ NSTimeInterval interval = [_delayDate timeIntervalSinceNow];
+ if (interval > 0) {
+ ITDebugLog(@"Audioscrobbler: Delaying track submission for %f seconds", interval);
+ [self performSelector:@selector(submitTracks) withObject:nil afterDelay:interval + 1];
+ return;
+ }
+
+ int i;
+ NSMutableString *requestString;
+ NSString *authString, *responseHash = @"";
+ unsigned char *buffer;
+ EVP_MD_CTX ctx;
+
+ ITDebugLog(@"Audioscrobbler: Submitting queued tracks");
+
+ if ([_tracks count] == 0) {
+ ITDebugLog(@"Audioscrobbler: No queued tracks to submit.");
+ return;
+ }
+
+ //Build the MD5 response string we send along with the request
+ buffer = malloc(EVP_MD_size(EVP_md5()));
+ EVP_DigestInit(&ctx, EVP_md5());
+ EVP_DigestUpdate(&ctx, pass, strlen(pass));
+ EVP_DigestFinal(&ctx, buffer, NULL);
+
+ for (i = 0; i < 16; i++) {
+ responseHash = [responseHash stringByAppendingFormat:@"%0.2x", buffer[i]];
+ }
+
+ free(buffer);
+ buffer = malloc(EVP_MD_size(EVP_md5()));
+ char *cat = (char *)[[responseHash stringByAppendingString:_md5Challenge] UTF8String];
+ EVP_DigestInit(&ctx, EVP_md5());
+ EVP_DigestUpdate(&ctx, cat, strlen(cat));
+ EVP_DigestFinal(&ctx, buffer, NULL);
+
+ responseHash = @"";
+ for (i = 0; i < 16; i++) {
+ responseHash = [responseHash stringByAppendingFormat:@"%0.2x", buffer[i]];
+ }
+ free(buffer);
+
+ authString = (NSString *)CFURLCreateStringByAddingPercentEscapes(NULL, (CFStringRef)[NSString stringWithFormat:@"u=%@&s=%@", user, responseHash], NULL, NULL, kCFStringEncodingUTF8);
+ requestString = [[NSMutableString alloc] initWithString:authString];
+ [authString release];
+
+ //We can only submit ten tracks at a time
+ for (i = 0; (i < [_tracks count]) && (i < 10); i++) {
+ NSDictionary *nextTrack = [_tracks objectAtIndex:i];
+ NSString *artistEscaped, *titleEscaped, *albumEscaped, *timeEscaped, *ampersand = @"&";
+
+ //Escape each of the individual parameters we're sending
+ artistEscaped = (NSString *)CFURLCreateStringByAddingPercentEscapes(NULL, (CFStringRef)[nextTrack objectForKey:@"artist"], NULL, (CFStringRef)ampersand, kCFStringEncodingUTF8);
+ titleEscaped = (NSString *)CFURLCreateStringByAddingPercentEscapes(NULL, (CFStringRef)[nextTrack objectForKey:@"title"], NULL, (CFStringRef)ampersand, kCFStringEncodingUTF8);
+ albumEscaped = (NSString *)CFURLCreateStringByAddingPercentEscapes(NULL, (CFStringRef)[nextTrack objectForKey:@"album"], NULL, (CFStringRef)ampersand, kCFStringEncodingUTF8);
+ timeEscaped = (NSString *)CFURLCreateStringByAddingPercentEscapes(NULL, (CFStringRef)[nextTrack objectForKey:@"time"], NULL, (CFStringRef)ampersand, kCFStringEncodingUTF8);
+
+ [requestString appendString:[NSString stringWithFormat:@"&a[%i]=%@&t[%i]=%@&b[%i]=%@&m[%i]=&l[%i]=%@&i[%i]=%@", i, artistEscaped,
+ i, titleEscaped,
+ i, albumEscaped,
+ i,
+ i, [nextTrack objectForKey:@"length"],
+ i, timeEscaped]];
+
+ //Release the escaped strings
+ [artistEscaped release];
+ [titleEscaped release];
+ [albumEscaped release];
+ [timeEscaped release];
+
+ [_submitTracks addObject:nextTrack];
+ }
+
+ ITDebugLog(@"Audioscrobbler: Sending track submission request");
+ [_lastStatus release];
+ _lastStatus = [NSLocalizedString(@"audioscrobbler_submitting", @"Submitting tracks to server") retain];
+ [[NSNotificationCenter defaultCenter] postNotificationName:@"AudioscrobblerStatusChanged" object:nil userInfo:[NSDictionary dictionaryWithObject:_lastStatus forKey:@"StatusString"]];
+
+ //Create and send the request
+ NSMutableURLRequest *request = [[NSURLRequest requestWithURL:_postURL cachePolicy:NSURLRequestReloadIgnoringCacheData timeoutInterval:15] mutableCopy];
+ NSLog(@"Posting Audioscrobbler URL request: %@", requestString);
+ [request setHTTPMethod:@"POST"];
+ [request setHTTPBody:[requestString dataUsingEncoding:NSUTF8StringEncoding]];
+ _currentStatus = AudioscrobblerSubmittingTracksStatus;
+ _responseData = [[NSMutableData alloc] init];
+ [NSURLConnection connectionWithRequest:request delegate:self];
+ [requestString release];
+ [request release];
+
+ //For now we're not going to cache results, as it is less of a headache
+ //[_tracks removeObjectsInArray:_submitTracks];
+ [_tracks removeAllObjects];
+ [_submitTracks removeAllObjects];
+
+ //If we have tracks left, submit again after the interval seconds
+}
+
+- (void)handleAudioscrobblerNotification:(NSNotification *)note
+{
+ if ([_tracks count] > 0) {
+ [self performSelector:@selector(submitTracks) withObject:nil afterDelay:2];
+ }
+}
+