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