+++ /dev/null
-/*
- * 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
- */
-
-/*
- * Author : Boris Mikhailenko <stg34@stargazer.dp.ua>
- */
-
-#include "netunit.h"
-
-#include "stg/servconf_types.h"
-#include "stg/common.h"
-#include "stg/blowfish.h"
-#include "stg/bfstream.h"
-
-#include <algorithm> // std::min
-
-#include <cerrno>
-#include <cstring>
-#include <cassert>
-
-#include <netdb.h>
-#include <arpa/inet.h>
-#include <unistd.h>
-
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <netinet/in.h>
-
-const char STG_HEADER[] = "SG04";
-const char OK_HEADER[] = "OKHD";
-const char ERR_HEADER[] = "ERHD";
-const char OK_LOGIN[] = "OKLG";
-const char ERR_LOGIN[] = "ERLG";
-const char OK_LOGINS[] = "OKLS";
-const char ERR_LOGINS[] = "ERLS";
-
-using namespace STG;
-
-namespace
-{
-
-struct ReadState
-{
- bool final;
- NETTRANSACT::CALLBACK callback;
- void * callbackData;
- NETTRANSACT * nt;
-};
-
-}
-
-//---------------------------------------------------------------------------
-
-const char SEND_DATA_ERROR[] = "Error sending data.";
-const char RECV_DATA_ANSWER_ERROR[] = "Error receiving data answer.";
-const char UNKNOWN_ERROR[] = "Unknown error";
-const char CONNECT_FAILED[] = "Failed to connect.";
-const char BIND_FAILED[] = "Failed to bind.";
-const char INCORRECT_LOGIN[] = "Incorrect login.";
-const char INCORRECT_HEADER[] = "Incorrect header.";
-const char SEND_LOGIN_ERROR[] = "Error sending login.";
-const char RECV_LOGIN_ANSWER_ERROR[] = "Error receiving login answer.";
-const char CREATE_SOCKET_ERROR[] = "Failed to create socket.";
-const char SEND_HEADER_ERROR[] = "Error sending header.";
-const char RECV_HEADER_ANSWER_ERROR[] = "Error receiving header answer.";
-
-//---------------------------------------------------------------------------
-NETTRANSACT::NETTRANSACT(const std::string & s, uint16_t p,
- const std::string & l, const std::string & pwd)
- : server(s),
- port(p),
- localPort(0),
- login(l),
- password(pwd),
- sock(-1)
-{
-}
-//---------------------------------------------------------------------------
-NETTRANSACT::NETTRANSACT(const std::string & s, uint16_t p,
- const std::string & la, uint16_t lp,
- const std::string & l, const std::string & pwd)
- : server(s),
- port(p),
- localAddress(la),
- localPort(lp),
- login(l),
- password(pwd),
- sock(-1)
-{
-}
-//---------------------------------------------------------------------------
-NETTRANSACT::~NETTRANSACT()
-{
-Disconnect();
-}
-//---------------------------------------------------------------------------
-int NETTRANSACT::Connect()
-{
-sock = socket(PF_INET, SOCK_STREAM, 0);
-if (sock < 0)
- {
- errorMsg = CREATE_SOCKET_ERROR;
- return st_conn_fail;
- }
-
-if (!localAddress.empty())
- {
- if (localPort == 0)
- localPort = port;
-
- unsigned long ip = inet_addr(localAddress.c_str());
-
- if (ip == INADDR_NONE)
- {
- struct hostent * phe = gethostbyname(localAddress.c_str());
- if (phe == NULL)
- {
- errorMsg = "Can not reslove '" + localAddress + "'";
- return st_dns_err;
- }
-
- struct hostent he;
- memcpy(&he, phe, sizeof(he));
- ip = *((long *)he.h_addr_list[0]);
- }
-
- struct sockaddr_in localAddr;
- memset(&localAddr, 0, sizeof(localAddr));
- localAddr.sin_family = AF_INET;
- localAddr.sin_port = htons(localPort);
- localAddr.sin_addr.s_addr = ip;
-
- if (bind(sock, (struct sockaddr *)&localAddr, sizeof(localAddr)) < 0)
- {
- errorMsg = BIND_FAILED;
- return st_conn_fail;
- }
- }
-
-struct sockaddr_in outerAddr;
-memset(&outerAddr, 0, sizeof(outerAddr));
-
-unsigned long ip = inet_addr(server.c_str());
-
-if (ip == INADDR_NONE)
- {
- struct hostent * phe = gethostbyname(server.c_str());
- if (phe == NULL)
- {
- errorMsg = "Can not reslove '" + server + "'";
- return st_dns_err;
- }
-
- struct hostent he;
- memcpy(&he, phe, sizeof(he));
- ip = *((long *)he.h_addr_list[0]);
- }
-
-outerAddr.sin_family = AF_INET;
-outerAddr.sin_port = htons(port);
-outerAddr.sin_addr.s_addr = ip;
-
-if (connect(sock, (struct sockaddr *)&outerAddr, sizeof(outerAddr)) < 0)
- {
- errorMsg = CONNECT_FAILED;
- return st_conn_fail;
- }
-
-return st_ok;
-}
-//---------------------------------------------------------------------------
-void NETTRANSACT::Disconnect()
-{
-if (sock != -1)
- {
- shutdown(sock, SHUT_RDWR);
- close(sock);
- sock = -1;
- }
-}
-//---------------------------------------------------------------------------
-int NETTRANSACT::Transact(const std::string & request, CALLBACK callback, void * data)
-{
-int ret;
-if ((ret = TxHeader()) != st_ok)
- return ret;
-
-if ((ret = RxHeaderAnswer()) != st_ok)
- return ret;
-
-if ((ret = TxLogin()) != st_ok)
- return ret;
-
-if ((ret = RxLoginAnswer()) != st_ok)
- return ret;
-
-if ((ret = TxLoginS()) != st_ok)
- return ret;
-
-if ((ret = RxLoginSAnswer()) != st_ok)
- return ret;
-
-if ((ret = TxData(request)) != st_ok)
- return ret;
-
-if ((ret = RxDataAnswer(callback, data)) != st_ok)
- return ret;
-
-return st_ok;
-}
-//---------------------------------------------------------------------------
-int NETTRANSACT::TxHeader()
-{
-if (!WriteAll(sock, STG_HEADER, strlen(STG_HEADER)))
- {
- errorMsg = SEND_HEADER_ERROR;
- return st_send_fail;
- }
-
-return st_ok;
-}
-//---------------------------------------------------------------------------
-int NETTRANSACT::RxHeaderAnswer()
-{
-char buffer[sizeof(STG_HEADER) + 1];
-
-if (!ReadAll(sock, buffer, strlen(OK_HEADER)))
- {
- errorMsg = RECV_HEADER_ANSWER_ERROR;
- return st_recv_fail;
- }
-
-if (strncmp(OK_HEADER, buffer, strlen(OK_HEADER)) == 0)
- return st_ok;
-
-if (strncmp(ERR_HEADER, buffer, strlen(ERR_HEADER)) == 0)
- {
- errorMsg = INCORRECT_HEADER;
- return st_header_err;
- }
-else
- {
- errorMsg = UNKNOWN_ERROR;
- return st_unknown_err;
- }
-}
-//---------------------------------------------------------------------------
-int NETTRANSACT::TxLogin()
-{
-char loginZ[ADM_LOGIN_LEN + 1];
-memset(loginZ, 0, ADM_LOGIN_LEN + 1);
-strncpy(loginZ, login.c_str(), ADM_LOGIN_LEN);
-
-if (!WriteAll(sock, loginZ, ADM_LOGIN_LEN))
- {
- errorMsg = SEND_LOGIN_ERROR;
- return st_send_fail;
- }
-
-return st_ok;
-}
-//---------------------------------------------------------------------------
-int NETTRANSACT::RxLoginAnswer()
-{
-char buffer[sizeof(OK_LOGIN) + 1];
-
-if (!ReadAll(sock, buffer, strlen(OK_LOGIN)))
- {
- errorMsg = RECV_LOGIN_ANSWER_ERROR;
- return st_recv_fail;
- }
-
-if (strncmp(OK_LOGIN, buffer, strlen(OK_LOGIN)) == 0)
- return st_ok;
-
-if (strncmp(ERR_LOGIN, buffer, strlen(ERR_LOGIN)) == 0)
- {
- errorMsg = INCORRECT_LOGIN;
- return st_login_err;
- }
-else
- {
- errorMsg = UNKNOWN_ERROR;
- return st_unknown_err;
- }
-}
-//---------------------------------------------------------------------------
-int NETTRANSACT::TxLoginS()
-{
-char loginZ[ADM_LOGIN_LEN + 1];
-memset(loginZ, 0, ADM_LOGIN_LEN + 1);
-
-BLOWFISH_CTX ctx;
-InitContext(password.c_str(), PASSWD_LEN, &ctx);
-EncryptString(loginZ, login.c_str(), std::min<size_t>(login.length() + 1, ADM_LOGIN_LEN), &ctx);
-if (!WriteAll(sock, loginZ, ADM_LOGIN_LEN))
- {
- errorMsg = SEND_LOGIN_ERROR;
- return st_send_fail;
- }
-
-return st_ok;
-}
-//---------------------------------------------------------------------------
-int NETTRANSACT::RxLoginSAnswer()
-{
-char buffer[sizeof(OK_LOGINS) + 1];
-
-if (!ReadAll(sock, buffer, strlen(OK_LOGINS)))
- {
- errorMsg = RECV_LOGIN_ANSWER_ERROR;
- return st_recv_fail;
- }
-
-if (strncmp(OK_LOGINS, buffer, strlen(OK_LOGINS)) == 0)
- return st_ok;
-
-if (strncmp(ERR_LOGINS, buffer, strlen(ERR_LOGINS)) == 0)
- {
- errorMsg = INCORRECT_LOGIN;
- return st_logins_err;
- }
-else
- {
- errorMsg = UNKNOWN_ERROR;
- return st_unknown_err;
- }
-}
-//---------------------------------------------------------------------------
-int NETTRANSACT::TxData(const std::string & text)
-{
-STG::ENCRYPT_STREAM stream(password, TxCrypto, this);
-stream.Put(text.c_str(), text.length() + 1, true);
-if (!stream.IsOk())
- {
- errorMsg = SEND_DATA_ERROR;
- return st_send_fail;
- }
-
-return st_ok;
-}
-//---------------------------------------------------------------------------
-int NETTRANSACT::RxDataAnswer(CALLBACK callback, void * data)
-{
-ReadState state = {false, callback, data, this};
-STG::DECRYPT_STREAM stream(password, RxCrypto, &state);
-while (!state.final)
- {
- char buffer[1024];
- ssize_t res = read(sock, buffer, sizeof(buffer));
- if (res < 0)
- {
- errorMsg = RECV_DATA_ANSWER_ERROR;
- return st_recv_fail;
- }
- stream.Put(buffer, res, res == 0);
- if (!stream.IsOk())
- return st_xml_parse_error;
- }
-
-return st_ok;
-}
-//---------------------------------------------------------------------------
-bool NETTRANSACT::TxCrypto(const void * block, size_t size, void * data)
-{
-assert(data != NULL);
-NETTRANSACT & nt = *static_cast<NETTRANSACT *>(data);
-if (!WriteAll(nt.sock, block, size))
- return false;
-return true;
-}
-//---------------------------------------------------------------------------
-bool NETTRANSACT::RxCrypto(const void * block, size_t size, void * data)
-{
-assert(data != NULL);
-ReadState & state = *static_cast<ReadState *>(data);
-
-const char * buffer = static_cast<const char *>(block);
-for (size_t pos = 0; pos < size; ++pos)
- if (buffer[pos] == 0)
- {
- state.final = true;
- size = pos; // Adjust string size
- }
-
-if (state.callback)
- if (!state.callback(std::string(buffer, size), state.final, state.callbackData))
- return false;
-
-return true;
-}
git.stg.codes / stg.git / blobdiff