loginpacket.mm

来自「lumaqq」· MM 代码 · 共 103 行

/*
 * LumaQQ - Cross platform QQ client, special edition for Mac
 *
 * Copyright (C) 2007 luma <[e-mail]>
 *
 * 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; either version 2 of the License, or
 * (at your option) any later version.
 *
 * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 */

#import "LoginPacket.h"
#import "NSData-QQCrypt.h"
#import "NSMutableData-CustomAppending.h"

@implementation LoginPacket : BasicOutPacket

- (id)initWithQQUser:(QQUser*)user {
	self = [super initWithQQUser:user];
	if(self) {
		m_command = kQQCommandLogin;
	}
	return self;
}

#pragma mark -
#pragma mark override super

- (void)fillBody:(ByteBuffer*)buf {
	[buf writeUInt16:[[m_user passport] length]];
	[buf writeBytes:[m_user passport]];
	
	[buf writeUInt16:0];

	int pos = [buf position];
	[buf skip:2];
	NSMutableData* verifyData = [NSMutableData data];
	[verifyData appendData:[m_user passwordMd5]];
	[verifyData appendByte:0];
	[verifyData appendByte:0];
	[verifyData appendSInt16:[m_user verifySuffix] littleEndian:YES];
	NSData* temp = [verifyData QQEncrypt:[m_user passwordKey]];
	[buf writeBytes:temp];
	[buf writeUInt16:[temp length] position:pos];
	
	char b;
	NSData* emptyData = [NSData dataWithBytes:&b length:0];
	NSData* encrypted = [emptyData QQEncrypt:[m_user passwordKey]];
	[buf writeBytes:encrypted];
	
	[buf writeBytes:kQQFixedContent1_35 length:35];
	[buf writeByte:random()];
	[buf writeByte:[m_user loginStatus]];
	
	[buf writeUInt32:0];
	[buf writeUInt32:0];
	[buf writeUInt16:0];
	
	[buf writeBytes:[m_user selectedServer]];
	
	[buf writeBytes:kQQFixedContent2_16 length:16];
	
	[buf writeByte:[[m_user loginToken] length]];
	[buf writeBytes:[m_user loginToken]];
	
	[buf writeBytes:kQQFixedContent3_332 length:332];
}

- (int)getEncryptStart {
	return [[m_user passport] length] + 2 + 11;
}

- (int)getEncryptLength {
	return m_bodyLength - [[m_user passport] length] - 2;
}

- (int)getDecryptStart:(NSData*)data {
	return [[m_user passport] length] + 2 + 11;
}

- (int)getDecryptLength:(NSData*)data {
	return [data length] - 11 - 1 - [[m_user passport] length] - 2;
}

- (NSData*)getEncryptKey {
	return [m_user initialKey];
}

- (NSData*)getDecryptKey {
	return [m_user initialKey];
}

@end