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         rootObject = [[NetworkObject alloc] init];
  37         serverPort = [[NSSocketPort alloc] initWithTCPPort:SERVER_PORT];
  38     }
  39     return self;
  40 }
  41
  42 - (void)dealloc
  43 {
  44     [self disconnect];
  45     if (serverOn) {
  46         [serverConnection release];
  47     }
  48     [serverPass release];
  49     [clientPass release];
  50     [serverPort release];
  51     [rootObject release];
  52     [clientProxy release];
  53     [remoteServices release];
  54     [browser release];
  55     [service stop];
  56     [service release];
  57     [super dealloc];
  58 }
  59
  60 - (void)startRemoteServerSearch
  61 {
  62     [browser searchForServicesOfType:@"_mttp._tcp." inDomain:@""];
  63     [remoteServices release];
  64     remoteServices = [[NSMutableArray alloc] init];
  65 }
  66
  67 - (void)stopRemoteServerSearch
  68 {
  69     [browser stop];
  70 }
  71
  72 - (void)setServerStatus:(BOOL)status
  73 {
  74     if (!serverOn && status) {
  75         NSString *name = [[NSUserDefaults standardUserDefaults] stringForKey:@"sharedPlayerName"];
  76         unsigned char buffer;
  77         NSData *fullPass;
  78         //Turn on
  79         NS_DURING
  80             serverConnection = [[NSConnection alloc] initWithReceivePort:serverPort
  81                                                      sendPort:serverPort];
  82             [serverConnection setRootObject:rootObject];
  83             [rootObject makeValid];
  84             [serverConnection registerName:@"ITMTPlayerHost"];
  85         NS_HANDLER
  86             [serverConnection setRootObject:nil];
  87             [serverConnection release];
  88             [serverPort release];
  89             ITDebugLog(@"Error starting server!");
  90             return;
  91         NS_ENDHANDLER
  92         ITDebugLog(@"Started server.");
  93         if (!name) {
  94             name = @"MenuTunes Shared Player";
  95         }
  96         service = [[NSNetService alloc] initWithDomain:@""
  97                                         type:@"_mttp._tcp."
  98                                         name:name
  99                                         port:SERVER_PORT];
 100         fullPass = [[NSUserDefaults standardUserDefaults] dataForKey:@"sharedPlayerPassword"];
 101         if ([fullPass length]) {
 102             [fullPass getBytes:&buffer range:NSMakeRange(6, 4)];
 103             [serverPass release];
 104             serverPass = [[NSData alloc] initWithBytes:&buffer length:strlen(&buffer)];
 105         } else {
 106             serverPass = nil;
 107         }
 108         [service publish];
 109         serverOn = YES;
 110         ITDebugLog(@"Server service published.");
 111     } else if (serverOn && !status && [serverConnection isValid]) {
 112         //Turn off
 113         [service stop];
 114         [service release];
 115         [rootObject invalidate];
 116         [serverConnection registerName:nil];
 117         [serverConnection invalidate];
 118         //[serverConnection setRootObject:nil];
 119         //[[serverConnection sendPort] autorelease];
 120         [serverConnection release];
 121         ITDebugLog(@"Stopped server.");
 122         serverOn = NO;
 123     }
 124 }
 125
 126 - (int)connectToHost:(NSString *)host
 127 {
 128     NSData *fullPass = [[NSUserDefaults standardUserDefaults] dataForKey:@"connectPassword"];
 129     unsigned char buffer;
 130     ITDebugLog(@"Connecting to host: %@", host);
 131     [remoteHost release];
 132     remoteHost = [host copy];
 133     if (fullPass) {
 134         [fullPass getBytes:&buffer range:NSMakeRange(6, 4)];
 135         [clientPass release];
 136         clientPass = [[NSData alloc] initWithBytes:&buffer length:strlen(&buffer)];
 137     } else {
 138         clientPass = nil;
 139     }
 140     NS_DURING
 141         clientPort = [[NSSocketPort alloc] initRemoteWithTCPPort:SERVER_PORT
 142                                            host:host];
 143         clientConnection = [[NSConnection connectionWithReceivePort:nil sendPort:clientPort] retain];
 144         [clientConnection setReplyTimeout:5];
 145         clientProxy = [[clientConnection rootProxy] retain];
 146         connectedToServer = YES;
 147     NS_HANDLER
 148         [clientConnection release];
 149         [clientPort release];
 150         ITDebugLog(@"Connection to host failed: %@", host);
 151         return 0;
 152     NS_ENDHANDLER
 153
 154     if (!clientProxy) {
 155         ITDebugLog(@"Null proxy! Couldn't connect!");
 156         [self disconnect];
 157         return NO;
 158     }
 159
 160     if ([clientProxy requiresPassword]) {
 161         ITDebugLog(@"Server requires password.");
 162         //Check to see if a password is set in defaults
 163         if ([[NSUserDefaults standardUserDefaults] dataForKey:@"connectPassword"] == nil) {
 164             ITDebugLog(@"Asking for password.");
 165             if (![[PreferencesController sharedPrefs] showPasswordPanel]) {
 166                 ITDebugLog(@"Giving up connection attempt.");
 167                 [self disconnect];
 168                 return -1;
 169             }
 170         }
 171
 172         //Send the password
 173         ITDebugLog(@"Sending password.");
 174         while (![clientProxy sendPassword:[[NSUserDefaults standardUserDefaults] dataForKey:@"connectPassword"]]) {
 175             ITDebugLog(@"Invalid password!");
 176             if (![[PreferencesController sharedPrefs] showInvalidPasswordPanel]) {
 177                 ITDebugLog(@"Giving up connection attempt.");
 178                 [self disconnect];
 179                 return -1;
 180             }
 181         }
 182     }
 183
 184     ITDebugLog(@"Connected to host: %@", host);
 185     [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(disconnect) name:NSConnectionDidDieNotification object:clientConnection];
 186     return 1;
 187 }
 188
 189 - (BOOL)disconnect
 190 {
 191     ITDebugLog(@"Disconnecting from host.");
 192     connectedToServer = NO;
 193     [remoteHost release];
 194     remoteHost = nil;
 195     [[NSNotificationCenter defaultCenter] removeObserver:self];
 196     [clientProxy release];
 197     [clientConnection release];
 198     return YES;
 199 }
 200
 201 - (BOOL)checkForServerAtHost:(NSString *)host
 202 {
 203     NSData *fullPass = [[NSUserDefaults standardUserDefaults] dataForKey:@"connectPassword"];
 204     unsigned char buffer;
 205     NSConnection *testConnection;
 206     NSSocketPort *testPort;
 207     NetworkObject *tempProxy;
 208     BOOL valid;
 209     ITDebugLog(@"Checking for shared remote at %@.", host);
 210     if (fullPass) {
 211         [fullPass getBytes:&buffer range:NSMakeRange(6, 4)];
 212         [clientPass release];
 213         clientPass = [[NSData alloc] initWithBytes:&buffer length:strlen(&buffer)];
 214     } else {
 215         clientPass = nil;
 216     }
 217
 218     NS_DURING
 219         testPort = [[NSSocketPort alloc] initRemoteWithTCPPort:SERVER_PORT
 220                                          host:host];
 221         testConnection = [[NSConnection connectionWithReceivePort:nil sendPort:testPort] retain];
 222         [testConnection setReplyTimeout:2];
 223         tempProxy = (NetworkObject *)[testConnection rootProxy];
 224         [tempProxy serverName];
 225         valid = [tempProxy isValid];
 226     NS_HANDLER
 227         ITDebugLog(@"Connection to host failed: %@", host);
 228         [testConnection release];
 229         [testPort release];
 230         return NO;
 231     NS_ENDHANDLER
 232
 233     if (!clientProxy) {
 234         ITDebugLog(@"Null proxy! Couldn't connect!");
 235         [testConnection release];
 236         [testPort release];
 237         return NO;
 238     }
 239     [testConnection release];
 240     [testPort release];
 241     return valid;
 242 }
 243
 244 - (void)resetServerName
 245 {
 246     if ([self isServerOn]) {
 247         [service stop];
 248         [service release];
 249         service = [[NSNetService alloc] initWithDomain:@""
 250                                         type:@"_mttp._tcp."
 251                                         name:[[NSUserDefaults standardUserDefaults] stringForKey:@"sharedPlayerName"]
 252                                         port:SERVER_PORT];
 253     }
 254 }
 255
 256 - (BOOL)isServerOn
 257 {
 258     return serverOn;
 259 }
 260
 261 - (BOOL)isClientConnected
 262 {
 263     return clientConnected;
 264 }
 265
 266 - (BOOL)isConnectedToServer
 267 {
 268     return connectedToServer;
 269 }
 270
 271 - (NSString *)remoteHost
 272 {
 273     return remoteHost;
 274 }
 275
 276 - (NetworkObject *)networkObject
 277 {
 278     return clientProxy;
 279 }
 280
 281 - (NSArray *)remoteServices
 282 {
 283     return remoteServices;
 284 }
 285
 286 - (void)netServiceBrowser:(NSNetServiceBrowser *)aNetServiceBrowser didFindService:(NSNetService *)aNetService moreComing:(BOOL)moreComing
 287 {
 288     ITDebugLog(@"Found service named %@.", [aNetService name]);
 289     [remoteServices addObject:aNetService];
 290     [aNetService setDelegate:self];
 291     [aNetService resolve];
 292     if (!moreComing) {
 293         [[NSNotificationCenter defaultCenter] postNotificationName:@"ITMTFoundNetService" object:nil];
 294     }
 295 }
 296
 297 - (void)netServiceBrowser:(NSNetServiceBrowser *)aNetServiceBrowser didRemoveService:(NSNetService*)aNetService moreComing:(BOOL)moreComing
 298 {
 299     ITDebugLog(@"Removed service named %@.", [aNetService name]);
 300     [remoteServices removeObject:aNetService];
 301     if (!moreComing) {
 302         [[NSNotificationCenter defaultCenter] postNotificationName:@"ITMTFoundNetService" object:nil];
 303     }
 304 }
 305
 306 - (void)netServiceDidResolveAddress:(NSNetService *)sender
 307 {
 308     ITDebugLog(@"Resolved service named %@.", [sender name]);
 309     [[NSNotificationCenter defaultCenter] postNotificationName:@"ITMTFoundNetService" object:nil];
 310     [sender stop];
 311 }
 312
 313 - (void)netServiceWillResolve:(NSNetService *)sender
 314 {
 315     ITDebugLog(@"Resolving service named %@.", [sender name]);
 316 }
 317
 318 - (void)netService:(NSNetService *)sender didNotResolve:(NSDictionary *)errorDict
 319 {
 320     ITDebugLog(@"Error resolving service %@.", errorDict);
 321 }
 322
 323 @end