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