NetworkController.m

   1 /*
   2  *      MenuTunes
   3  *  NetworkController
   4  *    Rendezvous network controller
   5  *
   6  *  Original Author : Kent Sutherland <ksuther@ithinksw.com>
   7  *   Responsibility : Kent Sutherland <ksuther@ithinksw.com>
   8  *
   9  *  Copyright (c) 2003 iThink Software.
  10  *  All Rights Reserved
  11  *
  12  */
  13
  14 #import "NetworkController.h"
  15 #import "MainController.h"
  16 #import "NetworkObject.h"
  17 #import "PreferencesController.h"
  18 #import <ITFoundation/ITDebug.h>
  19 #import <ITFoundation/ITFoundation.h>
  20
  21 static NetworkController *sharedController;
  22
  23 @implementation NetworkController
  24
  25 + (NetworkController *)sharedController
  26 {
  27     return sharedController;
  28 }
  29
  30 - (id)init
  31 {
  32     if ( (self = [super init]) ) {
  33         sharedController = self;
  34         browser = [[NSNetServiceBrowser alloc] init];
  35         [browser setDelegate:self];
  36     }
  37     return self;
  38 }
  39
  40 - (void)dealloc
  41 {
  42     [self disconnect];
  43     if (serverOn) {
  44         [serverConnection release];
  45     }
  46     [serverPass release];
  47     [clientPass release];
  48     [clientProxy release];
  49     [remoteServices release];
  50     [browser release];
  51     [service stop];
  52     [service release];
  53     [super dealloc];
  54 }
  55
  56 - (void)startRemoteServerSearch
  57 {
  58     [browser searchForServicesOfType:@"_mttp._tcp." inDomain:@""];
  59     [remoteServices release];
  60     remoteServices = [[NSMutableArray alloc] init];
  61 }
  62
  63 - (void)stopRemoteServerSearch
  64 {
  65     [browser stop];
  66 }
  67
  68 - (void)setServerStatus:(BOOL)status
  69 {
  70     if (!serverOn && status) {
  71         NSString *name = [[NSUserDefaults standardUserDefaults] stringForKey:@"sharedPlayerName"];
  72         unsigned char buffer;
  73         NSData *fullPass;
  74         //Turn on
  75         NS_DURING
  76             serverPort = [[NSSocketPort alloc] initWithTCPPort:SERVER_PORT];
  77             serverConnection = [[NSConnection alloc] initWithReceivePort:serverPort
  78                                                      sendPort:serverPort];
  79             [serverConnection setRootObject:[[NetworkObject alloc] init]];
  80             [serverConnection registerName:@"ITMTPlayerHost"];
  81         NS_HANDLER
  82             [[serverConnection rootObject] release];
  83             [serverConnection release];
  84             [serverPort release];
  85             ITDebugLog(@"Error starting server!");
  86         NS_ENDHANDLER
  87         ITDebugLog(@"Started server.");
  88         if (!name) {
  89             name = @"MenuTunes Shared Player";
  90         }
  91         service = [[NSNetService alloc] initWithDomain:@""
  92                                         type:@"_mttp._tcp."
  93                                         name:name
  94                                         port:SERVER_PORT];
  95         fullPass = [[NSUserDefaults standardUserDefaults] dataForKey:@"sharedPlayerPassword"];
  96         if (fullPass) {
  97             [fullPass getBytes:&buffer range:NSMakeRange(6, 4)];
  98             [serverPass release];
  99             serverPass = [[NSData alloc] initWithBytes:&buffer length:strlen(&buffer)];
 100         } else {
 101             serverPass = nil;
 102         }
 103         [service publish];
 104         serverOn = YES;
 105     } else if (serverOn && !status && [serverConnection isValid]) {
 106         //Turn off
 107         [service stop];
 108         [serverConnection registerName:nil];
 109         [[serverConnection rootObject] release];
 110         [serverConnection release];
 111         ITDebugLog(@"Stopped server.");
 112         serverOn = NO;
 113     }
 114 }
 115
 116 - (int)connectToHost:(NSString *)host
 117 {
 118     NSData *fullPass = [[NSUserDefaults standardUserDefaults] dataForKey:@"connectPassword"];
 119     unsigned char buffer;
 120     ITDebugLog(@"Connecting to host: %@", host);
 121     [remoteHost release];
 122     remoteHost = [host copy];
 123     if (fullPass) {
 124         [fullPass getBytes:&buffer range:NSMakeRange(6, 4)];
 125         [clientPass release];
 126         clientPass = [[NSData alloc] initWithBytes:&buffer length:strlen(&buffer)];
 127     } else {
 128         clientPass = nil;
 129     }
 130     NS_DURING
 131         clientPort = [[NSSocketPort alloc] initRemoteWithTCPPort:SERVER_PORT
 132                                            host:host];
 133         clientConnection = [[NSConnection connectionWithReceivePort:nil sendPort:clientPort] retain];
 134         [clientConnection setReplyTimeout:5];
 135         clientProxy = [[clientConnection rootProxy] retain];
 136     NS_HANDLER
 137         [clientConnection release];
 138         [clientPort release];
 139         ITDebugLog(@"Connection to host failed: %@", host);
 140         return NO;
 141     NS_ENDHANDLER
 142
 143     if (!clientProxy) {
 144         ITDebugLog(@"Null proxy! Couldn't connect!");
 145         [self disconnect];
 146         return NO;
 147     }
 148
 149     if ([clientProxy requiresPassword]) {
 150         ITDebugLog(@"Server requires password.");
 151         //Check to see if a password is set in defaults
 152         if ([[NSUserDefaults standardUserDefaults] dataForKey:@"connectPassword"] == nil) {
 153             ITDebugLog(@"Asking for password.");
 154             if (![[PreferencesController sharedPrefs] showPasswordPanel]) {
 155                 ITDebugLog(@"Giving up connection attempt.");
 156                 [self disconnect];
 157                 return -1;
 158             }
 159         }
 160
 161         //Send the password
 162         ITDebugLog(@"Sending password.");
 163         while (![clientProxy sendPassword:[[NSUserDefaults standardUserDefaults] dataForKey:@"connectPassword"]]) {
 164             ITDebugLog(@"Invalid password!");
 165             if (![[PreferencesController sharedPrefs] showInvalidPasswordPanel]) {
 166                 ITDebugLog(@"Giving up connection attempt.");
 167                 [self disconnect];
 168                 return -1;
 169             }
 170         }
 171     }
 172
 173     ITDebugLog(@"Connected to host: %@", host);
 174     [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(disconnect) name:NSConnectionDidDieNotification object:clientConnection];
 175     connectedToServer = YES;
 176     return 1;
 177 }
 178
 179 - (BOOL)disconnect
 180 {
 181     ITDebugLog(@"Disconnecting from host.");
 182     connectedToServer = NO;
 183     [remoteHost release];
 184     remoteHost = nil;
 185     [[NSNotificationCenter defaultCenter] removeObserver:self];
 186     [clientProxy release];
 187     [clientConnection release];
 188     return YES;
 189 }
 190
 191 - (BOOL)checkForServerAtHost:(NSString *)host
 192 {
 193     NSData *fullPass = [[NSUserDefaults standardUserDefaults] dataForKey:@"connectPassword"];
 194     unsigned char buffer;
 195     NSConnection *testConnection;
 196     NSSocketPort *testPort;
 197     NetworkObject *tempProxy;
 198     ITDebugLog(@"Checking for shared remote at %@.", host);
 199     if (fullPass) {
 200         [fullPass getBytes:&buffer range:NSMakeRange(6, 4)];
 201         [clientPass release];
 202         clientPass = [[NSData alloc] initWithBytes:&buffer length:strlen(&buffer)];
 203     } else {
 204         clientPass = nil;
 205     }
 206
 207     NS_DURING
 208         testPort = [[NSSocketPort alloc] initRemoteWithTCPPort:SERVER_PORT
 209                                          host:host];
 210         testConnection = [[NSConnection connectionWithReceivePort:nil sendPort:testPort] retain];
 211         [testConnection setReplyTimeout:2];
 212         tempProxy = (NetworkObject *)[testConnection rootProxy];
 213         [tempProxy serverName];
 214     NS_HANDLER
 215         ITDebugLog(@"Connection to host failed: %@", host);
 216         [testConnection release];
 217         [testPort release];
 218         return NO;
 219     NS_ENDHANDLER
 220
 221     if (!clientProxy) {
 222         ITDebugLog(@"Null proxy! Couldn't connect!");
 223         [testConnection release];
 224         [testPort release];
 225         return NO;
 226     }
 227     [testConnection release];
 228     [testPort release];
 229     return YES;
 230 }
 231
 232 - (BOOL)isServerOn
 233 {
 234     return serverOn;
 235 }
 236
 237 - (BOOL)isClientConnected
 238 {
 239     return clientConnected;
 240 }
 241
 242 - (BOOL)isConnectedToServer
 243 {
 244     return connectedToServer;
 245 }
 246
 247 - (NSString *)remoteHost
 248 {
 249     return remoteHost;
 250 }
 251
 252 - (NetworkObject *)networkObject
 253 {
 254     return clientProxy;
 255 }
 256
 257 - (NSArray *)remoteServices
 258 {
 259     return remoteServices;
 260 }
 261
 262 - (void)netServiceBrowser:(NSNetServiceBrowser *)aNetServiceBrowser didFindService:(NSNetService *)aNetService moreComing:(BOOL)moreComing
 263 {
 264     ITDebugLog(@"Found service named %@.", [aNetService name]);
 265     [remoteServices addObject:aNetService];
 266     [aNetService setDelegate:self];
 267     [aNetService resolve];
 268     if (!moreComing) {
 269         [[NSNotificationCenter defaultCenter] postNotificationName:@"ITMTFoundNetService" object:nil];
 270     }
 271 }
 272
 273 - (void)netServiceBrowser:(NSNetServiceBrowser *)aNetServiceBrowser didRemoveService:(NSNetService*)aNetService moreComing:(BOOL)moreComing
 274 {
 275     ITDebugLog(@"Removed service named %@.", [aNetService name]);
 276     [remoteServices removeObject:aNetService];
 277     if (!moreComing) {
 278         [[NSNotificationCenter defaultCenter] postNotificationName:@"ITMTFoundNetService" object:nil];
 279     }
 280 }
 281
 282 - (void)netServiceDidResolveAddress:(NSNetService *)sender
 283 {
 284     ITDebugLog(@"Resolved service named %@.", [sender name]);
 285     NSLog(@"Resolved service named %@.", [sender name]);
 286     [[NSNotificationCenter defaultCenter] postNotificationName:@"ITMTFoundNetService" object:nil];
 287     [sender stop];
 288 }
 289
 290 - (void)netServiceWillResolve:(NSNetService *)sender
 291 {
 292     ITDebugLog(@"Resolving service named %@.", [sender name]);
 293 }
 294
 295 - (void)netService:(NSNetService *)sender didNotResolve:(NSDictionary *)errorDict
 296 {
 297     ITDebugLog(@"Error resolving service %@.", errorDict);
 298 }
 299
 300 @end