- Fixed problem with previewImage when receiving memory warning on Missions screen
/*
* Hedgewars-iOS, a Hedgewars port for iOS devices
* Copyright (c) 2009-2012 Vittorio Giovara <vittorio.giovara@gmail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#import "ServerProtocolNetwork.h"
#import "hwconsts.h"
#define BUFFER_SIZE 256
static ServerProtocolNetwork *serverConnection;
@implementation ServerProtocolNetwork
@synthesize serverPort, serverAddress, ssd;
#pragma mark -
#pragma mark init and class methods
-(id) init:(NSInteger) onPort withAddress:(NSString *)address {
if ((self = [super init])) {
self.serverPort = onPort;
self.serverAddress = address;
}
serverConnection = self;
return self;
}
-(id) init {
return [self init:NETGAME_DEFAULT_PORT withAddress:@"netserver.hedgewars.org"];
}
-(id) initOnPort:(NSInteger) port {
return [self init:port withAddress:@"netserver.hedgewars.org"];
}
-(id) initToAddress:(NSString *)address {
return [self init:NETGAME_DEFAULT_PORT withAddress:address];
}
-(void) dealloc {
releaseAndNil(serverAddress);
serverConnection = nil;
[super dealloc];
}
+(id) openServerConnection {
id connection = [[self alloc] init];
[NSThread detachNewThreadSelector:@selector(serverProtocol)
toTarget:connection
withObject:nil];
[connection retain]; // retain count here is +2
return connection;
}
#pragma mark -
#pragma mark Communication layer
-(int) sendToServer:(NSString *)command {
NSString *message = [[NSString alloc] initWithFormat:@"%@\n\n",command];
int result = SDLNet_TCP_Send(self.ssd, [message UTF8String], [message lengthOfBytesUsingEncoding:NSUTF8StringEncoding]);
[message release];
return result;
}
-(int) sendToServer:(NSString *)command withArgument:(NSString *)argument {
NSString *message = [[NSString alloc] initWithFormat:@"%@\n%@\n\n",command,argument];
int result = SDLNet_TCP_Send(self.ssd, [message UTF8String], [message lengthOfBytesUsingEncoding:NSUTF8StringEncoding]);
[message release];
return result;
}
-(void) serverProtocol {
@autoreleasepool {
IPaddress ip;
BOOL clientQuit = NO;
char *buffer = (char *)malloc(sizeof(char)*BUFFER_SIZE);
int dim = BUFFER_SIZE;
uint8_t msgSize;
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
if (SDLNet_Init() < 0) {
DLog(@"SDLNet_Init: %s", SDLNet_GetError());
clientQuit = YES;
}
// Resolving the host using NULL make network interface to listen
if (SDLNet_ResolveHost(&ip, [self.serverAddress UTF8String] , self.serverPort) < 0 && !clientQuit) {
DLog(@"SDLNet_ResolveHost: %s", SDLNet_GetError());
clientQuit = YES;
}
// Open a connection with the IP provided (listen on the host's port)
if (!(self.ssd = SDLNet_TCP_Open(&ip)) && !clientQuit) {
DLog(@"SDLNet_TCP_Open: %s %d", SDLNet_GetError(), self.serverPort);
clientQuit = YES;
}
DLog(@"Found server on port %d", self.serverPort);
while (!clientQuit) {
int index = 0;
BOOL exitBufferLoop = NO;
memset(buffer, '\0', dim);
while (exitBufferLoop != YES) {
msgSize = SDLNet_TCP_Recv(self.ssd, &buffer[index], 2);
// exit in case of error
if (msgSize <= 0) {
DLog(@"SDLNet_TCP_Recv: %s", SDLNet_GetError());
clientQuit = YES;
break;
}
// update index position and check for End-Of-Message
index += msgSize;
if (strncmp(&buffer[index-2], "\n\n", 2) == 0) {
exitBufferLoop = YES;
}
// if message is too big allocate new space
if (index >= dim) {
dim += BUFFER_SIZE;
buffer = (char *)realloc(buffer, dim);
if (buffer == NULL) {
clientQuit = YES;
break;
}
}
}
NSString *bufferedMessage = [[NSString alloc] initWithBytes:buffer length:index-2 encoding:NSASCIIStringEncoding];
NSArray *listOfCommands = [bufferedMessage componentsSeparatedByString:@"\n"];
[bufferedMessage release];
NSString *command = [listOfCommands objectAtIndex:0];
DLog(@"size = %d, %@", index-2, listOfCommands);
if ([command isEqualToString:@"PING"]) {
if ([listOfCommands count] > 1)
[self sendToServer:@"PONG" withArgument:[listOfCommands objectAtIndex:1]];
else
[self sendToServer:@"PONG"];
DLog(@"PONG");
}
else if ([command isEqualToString:@"NICK"]) {
//what is this for?
}
else if ([command isEqualToString:@"PROTO"]) {
//what is this for?
}
else if ([command isEqualToString:@"ROOM"]) {
//TODO: stub
}
else if ([command isEqualToString:@"LOBBY:LEFT"]) {
//TODO: stub
}
else if ([command isEqualToString:@"LOBBY:JOINED"]) {
//TODO: stub
}
else if ([command isEqualToString:@"ASKPASSWORD"]) {
NSString *pwd = [defaults objectForKey:@"password"];
[self sendToServer:@"PASSWORD" withArgument:pwd];
}
else if ([command isEqualToString:@"CONNECTED"]) {
int netProto;
char *versionStr;
HW_versionInfo(&netProto, &versionStr);
NSString *nick = [defaults objectForKey:@"username"];
[self sendToServer:@"NICK" withArgument:nick];
[self sendToServer:@"PROTO" withArgument:[NSString stringWithFormat:@"%d",netProto]];
}
else if ([command isEqualToString:@"SERVER_MESSAGE"]) {
DLog(@"%@", [listOfCommands objectAtIndex:1]);
}
else if ([command isEqualToString:@"WARNING"]) {
if ([listOfCommands count] > 1)
DLog(@"Server warning - %@", [listOfCommands objectAtIndex:1]);
else
DLog(@"Server warning - unknown");
}
else if ([command isEqualToString:@"ERROR"]) {
DLog(@"Server error - %@", [listOfCommands objectAtIndex:1]);
}
else if ([command isEqualToString:@"BYE"]) {
//TODO: handle "Reconnected too fast"
DLog(@"Server disconnected, reason: %@", [listOfCommands objectAtIndex:1]);
clientQuit = YES;
}
else {
DLog(@"Unknown/Unsupported message received: %@", command);
}
}
DLog(@"Server closed connection, ending thread");
free(buffer);
SDLNet_TCP_Close(self.ssd);
SDLNet_Quit();
}
}
@end