passwordverifypacket.mm

来自「lumaqq」· MM 代码 · 共 121 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 "PasswordVerifyPacket.h"
#import "NSData-QQCrypt.h"
#import "NSMutableData-CustomAppending.h"

@implementation PasswordVerifyPacket

- (id)initWithQQUser:(QQUser*)user {
	self = [super initWithQQUser:user];
	if(self) {
		m_command = kQQCommandPasswordVerify;
		m_sequence = 0x3438;
	}
	return self;
}

- (void) dealloc {
	[m_loginToken release];
	[super dealloc];
}

- (void)fillBody:(ByteBuffer*)buf {
	[buf writeBytes:[m_user passwordVerifyRandomKey]];
	
	int pos = [buf position];
	[buf skip:2];
	
	[buf writeUInt32:0x00000804];
	[buf writeUInt16:0x010E];
	
	[buf writeByte:[m_loginToken length]];
	[buf writeBytes:m_loginToken];
	
	int pos2 = [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:pos2];
	
	[buf writeUInt16:0x0014];
	[buf writeUInt32:random()];
	[buf writeUInt32:random()];
	[buf writeUInt32:random()];
	[buf writeUInt32:random()];
	[buf writeUInt32:random()];
	
	[buf writeUInt16:([buf position] - pos - 2) position:pos];
		
	const char* bytes = (const char*)[[m_user passwordMd5] bytes];
	[buf writeUInt16:0x0003];
	[buf writeByte:0];
	[buf writeByte:bytes[1]];
	[buf writeByte:bytes[2]];
}

#pragma mark -
#pragma mark override super method

- (int)getEncryptStart {
	return 11 + kQQKeyLength;
}

- (int)getDecryptStart:(NSData*)data {
	return 11 + kQQKeyLength;
}

- (int)getEncryptLength {
	return m_bodyLength - kQQKeyLength;
}

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

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

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

#pragma mark -
#pragma mark getter and setter

- (NSData*)loginToken {
	return m_loginToken;
}

- (void)setLoginToken:(NSData*)token {
	[token retain];
	[m_loginToken release];
	m_loginToken = token;
}

@end