Failed miserably at making Audioscrobbler submissions work.

http://audioscrobbler.net/wiki/Protocol1.1

diff --git a/AudioscrobblerController.h b/AudioscrobblerController.h
index 6b62360..00662db 100644 (file)
--- a/AudioscrobblerController.h
+++ b/AudioscrobblerController.h
@@ -13,13 +13,24 @@
 
 #import <Cocoa/Cocoa.h>
 
 
 #import <Cocoa/Cocoa.h>
 

+typedef enum {
+       AudioscrobblerIdleStatus = -1,
+       AudioscrobblerRequestingHandshakeStatus,
+       AudioscrobblerCompletedHandshakeStatus,
+       AudioscrobblerSubmittingTrackStatus
+} AudioscrobblerStatus;
+

 @interface AudioscrobblerController : NSObject {
        BOOL _handshakeCompleted;
 @interface AudioscrobblerController : NSObject {
        BOOL _handshakeCompleted;

+       AudioscrobblerStatus _currentStatus;

        
        

+       NSString *_md5Challenge;
+       NSURL *_postURL;

        NSMutableData *_responseData;
 }
 + (AudioscrobblerController *)sharedController;
 
 - (void)attemptHandshake;
 - (BOOL)handshakeCompleted;
        NSMutableData *_responseData;
 }
 + (AudioscrobblerController *)sharedController;
 
 - (void)attemptHandshake;
 - (BOOL)handshakeCompleted;

+- (void)submitTrack:(NSString *)title artist:(NSString *)artist album:(NSString *)album length:(int)length;

 @end
 @end

diff --git a/AudioscrobblerController.m b/AudioscrobblerController.m
index 695c684..113e4b7 100644 (file)
--- a/AudioscrobblerController.m
+++ b/AudioscrobblerController.m
@@ -12,6 +12,7 @@
  */
 
 #import "AudioscrobblerController.h"
  */
 
 #import "AudioscrobblerController.h"

+#import <openssl/evp.h>

 
 static AudioscrobblerController *_sharedController = nil;
 
 
 static AudioscrobblerController *_sharedController = nil;
 


@@ -19,7 +20,9 @@ static AudioscrobblerController *_sharedController = nil;
 
 + (void)load
 {
 
 + (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
 }
 
 + (AudioscrobblerController *)sharedController


@@ -35,12 +38,22 @@ static AudioscrobblerController *_sharedController = nil;
        if ( (self = [super init]) ) {
                _handshakeCompleted = NO;
                _responseData = 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
 {
        }
        return self;
 }
 
 - (void)dealloc
 {

+       [_md5Challenge release];
+       [_postURL release];

        [_responseData release];
        [super dealloc];
 }
        [_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";
 - (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;
        
        NSURLConnection *connection;
        

+       _currentStatus = AudioscrobblerRequestingHandshakeStatus;

        _responseData = [[NSMutableData alloc] init];
        _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
 }
 
 - (BOOL)handshakeCompleted


@@ -62,6 +74,91 @@ static AudioscrobblerController *_sharedController = nil;
        return _handshakeCompleted;
 }
 
        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
 #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];
 - (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];
 }
 
        [string release];
 }