From 71ca8f780ad1fb4238e5649e84accdfab6b4ad59 Mon Sep 17 00:00:00 2001 From: Kent Sutherland Date: Wed, 2 Nov 2005 21:45:13 +0000 Subject: [PATCH] Failed miserably at making Audioscrobbler submissions work. http://audioscrobbler.net/wiki/Protocol1.1 --- AudioscrobblerController.h | 11 +++ AudioscrobblerController.m | 140 +++++++++++++++++++++++++++++++++++-- 2 files changed, 145 insertions(+), 6 deletions(-) diff --git a/AudioscrobblerController.h b/AudioscrobblerController.h index 6b62360..00662db 100644 --- a/AudioscrobblerController.h +++ b/AudioscrobblerController.h @@ -13,13 +13,24 @@ #import +typedef enum { + AudioscrobblerIdleStatus = -1, + AudioscrobblerRequestingHandshakeStatus, + AudioscrobblerCompletedHandshakeStatus, + AudioscrobblerSubmittingTrackStatus +} AudioscrobblerStatus; + @interface AudioscrobblerController : NSObject { BOOL _handshakeCompleted; + AudioscrobblerStatus _currentStatus; + NSString *_md5Challenge; + NSURL *_postURL; NSMutableData *_responseData; } + (AudioscrobblerController *)sharedController; - (void)attemptHandshake; - (BOOL)handshakeCompleted; +- (void)submitTrack:(NSString *)title artist:(NSString *)artist album:(NSString *)album length:(int)length; @end diff --git a/AudioscrobblerController.m b/AudioscrobblerController.m index 695c684..113e4b7 100644 --- a/AudioscrobblerController.m +++ b/AudioscrobblerController.m @@ -12,6 +12,7 @@ */ #import "AudioscrobblerController.h" +#import static AudioscrobblerController *_sharedController = nil; @@ -19,7 +20,9 @@ static AudioscrobblerController *_sharedController = nil; + (void)load { - //[[AudioscrobblerController sharedController] attemptHandshake]; + NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init]; + [[AudioscrobblerController sharedController] submitTrack:@"Stairway To Heaven" artist:@"Led Zeppelin" album:@"Led Zeppelin IV" length:483]; + [pool release]; } + (AudioscrobblerController *)sharedController @@ -35,12 +38,22 @@ static AudioscrobblerController *_sharedController = nil; if ( (self = [super init]) ) { _handshakeCompleted = NO; _responseData = nil; + _md5Challenge = nil; + _postURL = nil; + + //Test variables + _md5Challenge = @"315EFDA9FDA6A24B421BE991511DEE90"; + _postURL = [[NSURL alloc] initWithString:@"http://62.216.251.205:80/protocol_1.1"]; + _handshakeCompleted = YES; + [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(handleAudioscrobblerNotification:) name:nil object:self]; } return self; } - (void)dealloc { + [_md5Challenge release]; + [_postURL release]; [_responseData release]; [super dealloc]; } @@ -48,13 +61,12 @@ static AudioscrobblerController *_sharedController = nil; - (void)attemptHandshake { NSString *version = [[[NSBundle bundleWithPath:[[NSWorkspace sharedWorkspace] fullPathForApplication:@"iTunes.app"]] infoDictionary] objectForKey:@"CFBundleVersion"], *user = @"Tristrex"; - NSURL *url = [NSURL URLWithString:[NSString stringWithFormat:@"http://post.audioscrobbler.com/?hs=true&p=1.1&c=est&v=\"%@\"&u=\"%@\"", version, user]]; + NSURL *url = [NSURL URLWithString:[NSString stringWithFormat:@"http://post.audioscrobbler.com/?hs=true&p=1.1&c=tst&v=%@&u=%@", version, user]]; NSURLConnection *connection; + _currentStatus = AudioscrobblerRequestingHandshakeStatus; _responseData = [[NSMutableData alloc] init]; - connection = [NSURLConnection connectionWithRequest:[NSURLRequest requestWithURL:url] delegate:self]; - - _handshakeCompleted = YES; + connection = [NSURLConnection connectionWithRequest:[NSURLRequest requestWithURL:url cachePolicy:NSURLRequestReloadIgnoringCacheData timeoutInterval:30] delegate:self]; } - (BOOL)handshakeCompleted @@ -62,6 +74,91 @@ static AudioscrobblerController *_sharedController = nil; return _handshakeCompleted; } +- (void)submitTrack:(NSString *)title artist:(NSString *)artist album:(NSString *)album length:(int)length +{ + if (!_handshakeCompleted) { + [self attemptHandshake]; + return; + } + + //What we eventually want is a submission list that sends backlogs also + NSMutableURLRequest *request = [[NSURLRequest requestWithURL:_postURL cachePolicy:NSURLRequestReloadIgnoringCacheData timeoutInterval:30] mutableCopy]; + NSString *responseHash, *requestBody; + + char *pass = "waffles"; + unsigned char *buffer, *buffer2, buffer3[16]; + EVP_MD_CTX ctx; + int i; + + buffer = malloc(EVP_MD_size(EVP_md5())); + //buffer3 = malloc(EVP_MD_size(EVP_md5())); + + EVP_DigestInit(&ctx, EVP_md5()); + EVP_DigestUpdate(&ctx, pass, strlen(pass)); + EVP_DigestUpdate(&ctx, [_md5Challenge UTF8String], strlen([_md5Challenge UTF8String])); + EVP_DigestFinal(&ctx, buffer, NULL); + + for (i = 0; i < 16; i++) { + char hex1, hex2; + hex1 = toascii(48+ (buffer[i] / 16)); + if (hex1 > 57) { + hex1 = hex1 + 39; + } + hex2 = toascii(48 + (buffer[i] % 16)); + if (hex2 > 57) { + hex2 = hex2 + 39; + } + + buffer3[i] = hex1; + buffer3[i + 1] = hex2; + } + + NSLog(@"%s", buffer3); + + /*unsigned char *cat = strcat(buffer3, [[_md5Challenge lowercaseString] UTF8String]); + + EVP_DigestInit(&ctx, EVP_md5()); + EVP_DigestUpdate(&ctx, cat, strlen(cat)); + EVP_DigestFinal(&ctx, buffer2, NULL); + + for (i = 0; i < 16; i++) { + char hex1, hex2; + hex1 = toascii(48+ (buffer2[i] / 16)); + if (hex1 > 57) { + hex1 = hex1 + 39; + } + hex2 = toascii(48 + (buffer2[i] % 16)); + if (hex2 > 57) { + hex2 = hex2 + 39; + } + buffer3[i] = hex1; + buffer3[i + 1] = hex2; + } + NSLog(@"%s", buffer3);*/ + + if ([NSString respondsToSelector:@selector(stringWithCString:encoding:)]) { + responseHash = [NSString stringWithCString:buffer3 encoding:NSASCIIStringEncoding]; + } else { + responseHash = [NSString stringWithCString:buffer3 length:strlen(buffer)]; + } + + requestBody = [NSString stringWithFormat:@"u=%@&s=%@&a[0]=%@&t[0]=%@&b[0]=%@&m[0]=&l[0]=%i&i[0]=%@", @"Tristrex", @"rawr", responseHash, title, album, length, [[NSDate date] descriptionWithCalendarFormat:@"%Y-%m-%d %H:%M:%S" timeZone:nil locale:nil]]; + [request setHTTPMethod:@"POST"]; + [request setHTTPBody:[requestBody dataUsingEncoding:NSUTF8StringEncoding]]; + + _currentStatus = AudioscrobblerSubmittingTrackStatus; + _responseData = [[NSMutableData alloc] init]; + [NSURLConnection connectionWithRequest:request delegate:self]; + [request release]; +} + +- (void)handleAudioscrobblerNotification:(NSNotification *)note +{ + if ([[note name] isEqualToString:@"AudioscrobblerHandshakeComplete"]) { + [[AudioscrobblerController sharedController] submitTrack:@"Stairway To Heaven" artist:@"Led Zeppelin" album:@"Led Zeppelin IV" length:483]; + } +} + #pragma mark - - (void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error @@ -77,7 +174,38 @@ static AudioscrobblerController *_sharedController = nil; - (void)connectionDidFinishLoading:(NSURLConnection *)connection { NSString *string = [[NSString alloc] initWithData:_responseData encoding:NSASCIIStringEncoding]; - NSLog(@"Rawr: %@", string); + + if (_currentStatus == AudioscrobblerRequestingHandshakeStatus) { + NSArray *lines = [string componentsSeparatedByString:@"\n"]; + NSString *responseAction; + if ([lines count] < 2) { + //We have an error + } + responseAction = [lines objectAtIndex:0]; + if ([responseAction isEqualToString:@"UPTODATE"]) { + if ([lines count] >= 4) { + _md5Challenge = [[lines objectAtIndex:1] retain]; + _postURL = [[NSURL alloc] initWithString:[lines objectAtIndex:2]]; + _handshakeCompleted = YES; + NSLog(@"%@", _md5Challenge); + [[NSNotificationCenter defaultCenter] postNotificationName:@"AudioscrobblerHandshakeComplete" object:self]; + } else { + //We have an error + } + //Something + } else if (([responseAction length] > 6) && [[responseAction substringToIndex:5] isEqualToString:@"UPDATE"]) { + //Something plus update action + } else if (([responseAction length] > 6) && [[responseAction substringToIndex:5] isEqualToString:@"FAILED"]) { + //We have an error + } else if ([responseAction isEqualToString:@"BADUSER"]) { + //We have an error + } else { + //We have an error + } + } else if (_currentStatus == AudioscrobblerSubmittingTrackStatus) { + NSLog(string); + } + [string release]; } -- 2.20.1