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#include "common.h"
#include "server_con.h"
#include "net.h"
#include "arc4.h"
#include "options.h"
#include "NetMessage.h"
#define SERVER_READ_BUFFER_SIZE (1024 * 32)
/* TODO: obtain IPs of network interfaces from user's machine, instead of
* hardcoding these values below (used in msim_compute_login_response).
* This is not immediately
* important because you can still connect and perform basic
* functions of the protocol. There is also a high chance that the addreses
* are RFC1918 private, so the servers couldn't do anything with them
* anyways except make note of that fact. Probably important for any
* kind of direct connection, or file transfer functionality.
*/
#define LOGIN_IP_LIST "\x00\x00\x00\x00\x05\x7f\x00\x00\x01\x00\x00\x00\x00\x0a\x00\x00\x40\xc0\xa8\x58\x01\xc0\xa8\x3c\x01"
#define LOGIN_IP_LIST_LEN 25
#define NONCE_SIZE 0x20
int status = ID_STATUS_OFFLINE;
bool server_running = false, server_stop = false;
HANDLE server_connection = 0;
int sesskey;
void CALLBACK sttMainThreadStatusCallback( ULONG dwParam ) {
if(status != dwParam) {
int previous_status = status;
status = dwParam;
ProtoBroadcastAck(MODULE,NULL,ACKTYPE_STATUS,ACKRESULT_SUCCESS, (HANDLE)previous_status, status);
}
}
int waitcallback(unsigned int *timeout) {
//PUShowMessage("waitcallback", SM_NOTIFY);
return server_stop ? 0 : 1;
}
int try_ports[9] = {1863, 6660,6661,6662,6665,6668,6669,80,0443};
void try_login(NetMessage &msg, HANDLE connection) {
char nonce[NONCE_SIZE * 2 + 2], *nc1 = nonce, *nc2 = nonce + NONCE_SIZE;
int size = NONCE_SIZE * 2 + 2;
if(msg.get_data("nc", nonce, &size) && size == NONCE_SIZE * 2) {
SHA1_INTERFACE sha1;
mir_sha1_ctx sha1_ctx;
mir_getSHA1I(&sha1);
ARC4_INTERFACE arc4;
mir_arc4_ctx arc4_ctx;
mir_getARC4I(&arc4);
char *ch_resp;
mir_sha1_byte_t pw_hash[20];
int ch_resp_size;
wchar_t wpw[256];
mir_sha1_byte_t key[20];
char email[256];
#ifdef _UNICODE
_tcscpy(wpw, options.pw);
WideCharToMultiByte(CP_UTF8, 0, options.email, -1, email, 256, 0, 0);
#else
strcpy(email, options.email);
MultiByteToWideChar(code_page, 0, options.pw, -1, wpw, 256);
#endif
sha1.sha1_hash((mir_sha1_byte_t*)wpw, wcslen(wpw) * sizeof(wchar_t), pw_hash);
sha1.sha1_init(&sha1_ctx);
sha1.sha1_append(&sha1_ctx, (mir_sha1_byte_t*)pw_hash, 20);
sha1.sha1_append(&sha1_ctx, (mir_sha1_byte_t*)nc2, NONCE_SIZE);
sha1.sha1_finish(&sha1_ctx, key);
arc4.arc4_init(&arc4_ctx, (char *)key, 0x10);
ch_resp_size = NONCE_SIZE + strlen(email) + LOGIN_IP_LIST_LEN;
ch_resp = new char[ch_resp_size];
memcpy(ch_resp, nc1, NONCE_SIZE);
memcpy(ch_resp + NONCE_SIZE, email, strlen(email));
memcpy(ch_resp + NONCE_SIZE + strlen(email), LOGIN_IP_LIST, LOGIN_IP_LIST_LEN);
arc4.arc4_crypt(&arc4_ctx, ch_resp, ch_resp, ch_resp_size);
ClientNetMessage reply;
reply.add_int("login2", 196610);
reply.add_string("username", email);
reply.add_data("response", ch_resp, ch_resp_size);
reply.add_int("clientver", 673);
reply.add_int("reconn", 0);
reply.add_int("status", 100);
reply.add_int("id", 1);
delete[] ch_resp;
char packet[4096];
int packet_size = reply.make_packet(packet, 4096);
Netlib_Send(server_connection, packet, packet_size, MSG_DUMPASTEXT);
} else {
PUShowMessage("Nonce format error", SM_NOTIFY);
}
}
void __cdecl ServerThreadFunc(void*) {
NETLIBOPENCONNECTION conn_data = {0};
conn_data.cbSize = sizeof(NETLIBOPENCONNECTION);
conn_data.flags = NLOCF_V2;
conn_data.szHost = "im.myspace.akadns.net";
conn_data.wPort = DBGetContactSettingDword(0, MODULE, "LastPort", try_ports[0]);
conn_data.timeout = 10;
conn_data.waitcallback = waitcallback;
int conn_stat = ID_STATUS_CONNECTING;
QueueUserAPC(sttMainThreadStatusCallback, mainThread, conn_stat);
server_running = true;
char *recv_buffer = new char[SERVER_READ_BUFFER_SIZE];
int bytes = 0;
char mt[256];
int tries = 0;
bool login = true;
HANDLE connection = 0;
while(!Miranda_Terminated() && !server_stop) {
if(login) {
if(connection) Netlib_CloseHandle(connection);
QueueUserAPC(sttMainThreadStatusCallback, mainThread, conn_stat++);
connection = (HANDLE)CallService(MS_NETLIB_OPENCONNECTION, (WPARAM)hNetlibUser, (LPARAM)&conn_data);
}
bytes = Netlib_Recv(connection, (char *)recv_buffer, SERVER_READ_BUFFER_SIZE, MSG_DUMPASTEXT);
if(bytes == 0) {
PUShowMessage("Connection closed", SM_NOTIFY);
if(login && tries < 9) {
conn_data.wPort = try_ports[tries++];
} else
break;
} else if(bytes == SOCKET_ERROR) {
PUShowMessage("Socket ERROR", SM_NOTIFY);
if(login && tries < 9) {
conn_data.wPort = try_ports[tries++];
} else
break;
} else {
if(login) {
QueueUserAPC(sttMainThreadStatusCallback, mainThread, conn_stat++);
login = false;
server_connection = connection;
DBWriteContactSettingDword(0, MODULE, "LastPort", conn_data.wPort);
}
//mir_snprintf(mt, 256, "recvd %d bytes", bytes);
//PUShowMessage(mt, SM_NOTIFY);
NetMessage msg;
msg.parse(recv_buffer, bytes);
if(msg.exists(NMString("error"))) {
char errmsg[256];
if(msg.get_string("errmsg", errmsg, 256))
PUShowMessage(errmsg, SM_WARNING);
} else if(msg.get_int("lc") == 1) {
QueueUserAPC(sttMainThreadStatusCallback, mainThread, conn_stat++);
try_login(msg, server_connection);
} else if(msg.get_int("lc") == 2) {
sesskey = msg.get_int("sesskey");
QueueUserAPC(sttMainThreadStatusCallback, mainThread, ID_STATUS_ONLINE);
} else if(msg.exists(NMString("persistr"))) {
/*
NMString cmd, dsn, lid;
msg.get(NMString("cmd"), cmd);
msg.get(NMString("dsn"), dsn);
msg.get(NMString("lid"), lid);
mir_snprintf(mt, 256, "Peristr message: type is %s,%s,%s", cmd.text, dsn.text, lid.text);
PUShowMessage(mt, SM_NOTIFY);
*/
}
}
}
if(server_connection) {
Netlib_CloseHandle(server_connection);
server_connection = 0;
}
delete recv_buffer;
QueueUserAPC(sttMainThreadStatusCallback, mainThread, ID_STATUS_OFFLINE);
server_running = false;
}
void StartThread() {
if(!server_running) {
server_stop = false;
mir_forkthread(ServerThreadFunc, 0);
}
}
void StopThread() {
if(server_running) {
server_stop = true;
if(server_connection) {
Netlib_CloseHandle(server_connection);
server_connection = 0;
}
}
}
void InitServerConnection() {
StartThread();
}
void DeinitServerConnection() {
StopThread();
}
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