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) {
 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         [rootObject invalidate];
 115         [serverConnection registerName:nil];
 116         [serverConnection invalidate];
 117         //[serverConnection setRootObject:nil];
 118         //[[serverConnection sendPort] autorelease];
 119         [serverConnection release];
 120         ITDebugLog(@"Stopped server.");
 121         serverOn = NO;
 122     }
 123 }
 124
 125 - (int)connectToHost:(NSString *)host
 126 {
 127     NSData *fullPass = [[NSUserDefaults standardUserDefaults] dataForKey:@"connectPassword"];
 128     unsigned char buffer;
 129     ITDebugLog(@"Connecting to host: %@", host);
 130     [remoteHost release];
 131     remoteHost = [host copy];
 132     if (fullPass) {
 133         [fullPass getBytes:&buffer range:NSMakeRange(6, 4)];
 134         [clientPass release];
 135         clientPass = [[NSData alloc] initWithBytes:&buffer length:strlen(&buffer)];
 136     } else {
 137         clientPass = nil;
 138     }
 139     NS_DURING
 140         clientPort = [[NSSocketPort alloc] initRemoteWithTCPPort:SERVER_PORT
 141                                            host:host];
 142         clientConnection = [[NSConnection connectionWithReceivePort:nil sendPort:clientPort] retain];
 143         [clientConnection setReplyTimeout:5];
 144         clientProxy = [[clientConnection rootProxy] retain];
 145         connectedToServer = YES;
 146     NS_HANDLER
 147         [clientConnection release];
 148         [clientPort release];
 149         ITDebugLog(@"Connection to host failed: %@", host);
 150         return 0;
 151     NS_ENDHANDLER
 152
 153     if (!clientProxy) {
 154         ITDebugLog(@"Null proxy! Couldn't connect!");
 155         [self disconnect];
 156         return NO;
 157     }
 158
 159     if ([clientProxy requiresPassword]) {
 160         ITDebugLog(@"Server requires password.");
 161         //Check to see if a password is set in defaults
 162         if ([[NSUserDefaults standardUserDefaults] dataForKey:@"connectPassword"] == nil) {
 163             ITDebugLog(@"Asking for password.");
 164             if (![[PreferencesController sharedPrefs] showPasswordPanel]) {
 165                 ITDebugLog(@"Giving up connection attempt.");
 166                 [self disconnect];
 167                 return -1;
 168             }
 169         }
 170
 171         //Send the password
 172         ITDebugLog(@"Sending password.");
 173         while (![clientProxy sendPassword:[[NSUserDefaults standardUserDefaults] dataForKey:@"connectPassword"]]) {
 174             ITDebugLog(@"Invalid password!");
 175             if (![[PreferencesController sharedPrefs] showInvalidPasswordPanel]) {
 176                 ITDebugLog(@"Giving up connection attempt.");
 177                 [self disconnect];
 178                 return -1;
 179             }
 180         }
 181     }
 182
 183     ITDebugLog(@"Connected to host: %@", host);
 184     [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(disconnect) name:NSConnectionDidDieNotification object:clientConnection];
 185     return 1;
 186 }
 187
 188 - (BOOL)disconnect
 189 {
 190     ITDebugLog(@"Disconnecting from host.");
 191     connectedToServer = NO;
 192     [remoteHost release];
 193     remoteHost = nil;
 194     [[NSNotificationCenter defaultCenter] removeObserver:self];
 195     [clientProxy release];
 196     [clientConnection release];
 197     return YES;
 198 }
 199
 200 - (BOOL)checkForServerAtHost:(NSString *)host
 201 {
 202     NSData *fullPass = [[NSUserDefaults standardUserDefaults] dataForKey:@"connectPassword"];
 203     unsigned char buffer;
 204     NSConnection *testConnection;
 205     NSSocketPort *testPort;
 206     NetworkObject *tempProxy;
 207     BOOL valid;
 208     ITDebugLog(@"Checking for shared remote at %@.", host);
 209     if (fullPass) {
 210         [fullPass getBytes:&buffer range:NSMakeRange(6, 4)];
 211         [clientPass release];
 212         clientPass = [[NSData alloc] initWithBytes:&buffer length:strlen(&buffer)];
 213     } else {
 214         clientPass = nil;
 215     }
 216
 217     NS_DURING
 218         testPort = [[NSSocketPort alloc] initRemoteWithTCPPort:SERVER_PORT
 219                                          host:host];
 220         testConnection = [[NSConnection connectionWithReceivePort:nil sendPort:testPort] retain];
 221         [testConnection setReplyTimeout:2];
 222         tempProxy = (NetworkObject *)[testConnection rootProxy];
 223         [tempProxy serverName];
 224         valid = [tempProxy isValid];
 225     NS_HANDLER
 226         ITDebugLog(@"Connection to host failed: %@", host);
 227         [testConnection release];
 228         [testPort release];
 229         return NO;
 230     NS_ENDHANDLER
 231
 232     if (!clientProxy) {
 233         ITDebugLog(@"Null proxy! Couldn't connect!");
 234         [testConnection release];
 235         [testPort release];
 236         return NO;
 237     }
 238     [testConnection release];
 239     [testPort release];
 240     return valid;
 241 }
 242
 243 - (BOOL)isServerOn
 244 {
 245     return serverOn;
 246 }
 247
 248 - (BOOL)isClientConnected
 249 {
 250     return clientConnected;
 251 }
 252
 253 - (BOOL)isConnectedToServer
 254 {
 255     return connectedToServer;
 256 }
 257
 258 - (NSString *)remoteHost
 259 {
 260     return remoteHost;
 261 }
 262
 263 - (NetworkObject *)networkObject
 264 {
 265     return clientProxy;
 266 }
 267
 268 - (NSArray *)remoteServices
 269 {
 270     return remoteServices;
 271 }
 272
 273 - (void)netServiceBrowser:(NSNetServiceBrowser *)aNetServiceBrowser didFindService:(NSNetService *)aNetService moreComing:(BOOL)moreComing
 274 {
 275     ITDebugLog(@"Found service named %@.", [aNetService name]);
 276     [remoteServices addObject:aNetService];
 277     [aNetService setDelegate:self];
 278     [aNetService resolve];
 279     if (!moreComing) {
 280         [[NSNotificationCenter defaultCenter] postNotificationName:@"ITMTFoundNetService" object:nil];
 281     }
 282 }
 283
 284 - (void)netServiceBrowser:(NSNetServiceBrowser *)aNetServiceBrowser didRemoveService:(NSNetService*)aNetService moreComing:(BOOL)moreComing
 285 {
 286     ITDebugLog(@"Removed service named %@.", [aNetService name]);
 287     [remoteServices removeObject:aNetService];
 288     if (!moreComing) {
 289         [[NSNotificationCenter defaultCenter] postNotificationName:@"ITMTFoundNetService" object:nil];
 290     }
 291 }
 292
 293 - (void)netServiceDidResolveAddress:(NSNetService *)sender
 294 {
 295     ITDebugLog(@"Resolved service named %@.", [sender name]);
 296     [[NSNotificationCenter defaultCenter] postNotificationName:@"ITMTFoundNetService" object:nil];
 297     [sender stop];
 298 }
 299
 300 - (void)netServiceWillResolve:(NSNetService *)sender
 301 {
 302     ITDebugLog(@"Resolving service named %@.", [sender name]);
 303 }
 304
 305 - (void)netService:(NSNetService *)sender didNotResolve:(NSDictionary *)errorDict
 306 {
 307     ITDebugLog(@"Error resolving service %@.", errorDict);
 308 }
 309
 310 @end