X-Git-Url: https://git.stg.codes/stg.git/blobdiff_plain/4e95741287ce4385f16eaf9d621cedd4dccbcfe3..46b0747592074017ff0ea4b33d4a7194235886e5:/stglibs/srvconf.lib/netunit.cpp diff --git a/stglibs/srvconf.lib/netunit.cpp b/stglibs/srvconf.lib/netunit.cpp deleted file mode 100644 index 3461fb47..00000000 --- a/stglibs/srvconf.lib/netunit.cpp +++ /dev/null @@ -1,418 +0,0 @@ -/* - * 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 - */ - -#include "netunit.h" - -#include "stg/servconf_types.h" -#include "stg/common.h" -#include "stg/blowfish.h" - -#include // std::min - -#include -#include -#include - -#include -#include -#include - -#include -#include -#include - -using namespace STG; - -namespace -{ - -const std::string::size_type MAX_XML_CHUNK_LENGTH = 2048; - -} - -//--------------------------------------------------------------------------- - -#define SEND_DATA_ERROR "Send data error!" -#define RECV_DATA_ANSWER_ERROR "Recv data answer error!" -#define UNKNOWN_ERROR "Unknown error!" -#define CONNECT_FAILED "Connect failed!" -#define BIND_FAILED "Bind failed!" -#define INCORRECT_LOGIN "Incorrect login!" -#define INCORRECT_HEADER "Incorrect header!" -#define SEND_LOGIN_ERROR "Send login error!" -#define RECV_LOGIN_ANSWER_ERROR "Recv login answer error!" -#define CREATE_SOCKET_ERROR "Create socket failed!" -#define WSASTARTUP_FAILED "WSAStartup failed!" -#define SEND_HEADER_ERROR "Send header error!" -#define RECV_HEADER_ANSWER_ERROR "Recv header answer error!" - -//--------------------------------------------------------------------------- -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), - outerSocket(-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), - outerSocket(-1) -{ -} -//--------------------------------------------------------------------------- -int NETTRANSACT::Connect() -{ -outerSocket = socket(PF_INET, SOCK_STREAM, 0); -if (outerSocket < 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 = "DNS error.\nCan 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(outerSocket, (struct sockaddr *)&localAddr, sizeof(localAddr)) < 0) - { - errorMsg = BIND_FAILED; - close(outerSocket); - 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 = "DNS error.\nCan 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(outerSocket, (struct sockaddr *)&outerAddr, sizeof(outerAddr)) < 0) - { - errorMsg = CONNECT_FAILED; - close(outerSocket); - return st_conn_fail; - } - -return st_ok; -} -//--------------------------------------------------------------------------- -void NETTRANSACT::Disconnect() -{ -close(outerSocket); -} -//--------------------------------------------------------------------------- -int NETTRANSACT::Transact(const std::string & request, CALLBACK callback, void * data) -{ -int ret; -if ((ret = TxHeader()) != st_ok) - { - Disconnect(); - return ret; - } - -if ((ret = RxHeaderAnswer()) != st_ok) - { - Disconnect(); - return ret; - } - -if ((ret = TxLogin()) != st_ok) - { - Disconnect(); - return ret; - } - -if ((ret = RxLoginAnswer()) != st_ok) - { - Disconnect(); - return ret; - } - -if ((ret = TxLoginS()) != st_ok) - { - Disconnect(); - return ret; - } - -if ((ret = RxLoginSAnswer()) != st_ok) - { - Disconnect(); - return ret; - } - -if ((ret = TxData(request)) != st_ok) - { - Disconnect(); - return ret; - } - -if ((ret = RxDataAnswer(callback, data)) != st_ok) - { - Disconnect(); - return ret; - } - -return st_ok; -} -//--------------------------------------------------------------------------- -int NETTRANSACT::TxHeader() -{ -if (send(outerSocket, STG_HEADER, strlen(STG_HEADER), 0) <= 0) - { - errorMsg = SEND_HEADER_ERROR; - return st_send_fail; - } - -return st_ok; -} -//--------------------------------------------------------------------------- -int NETTRANSACT::RxHeaderAnswer() -{ -char buffer[sizeof(STG_HEADER) + 1]; - -if (recv(outerSocket, buffer, strlen(OK_HEADER), 0) <= 0) - { - printf("Receive header answer error: '%s'\n", strerror(errno)); - errorMsg = RECV_HEADER_ANSWER_ERROR; - return st_recv_fail; - } - -if (strncmp(OK_HEADER, buffer, strlen(OK_HEADER)) == 0) - { - return st_ok; - } -else - { - 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]; -memset(loginZ, 0, ADM_LOGIN_LEN); -strncpy(loginZ, login.c_str(), ADM_LOGIN_LEN); - -if (send(outerSocket, loginZ, ADM_LOGIN_LEN, 0) <= 0) - { - errorMsg = SEND_LOGIN_ERROR; - return st_send_fail; - } - -return st_ok; -} -//--------------------------------------------------------------------------- -int NETTRANSACT::RxLoginAnswer() -{ -char buffer[sizeof(OK_LOGIN) + 1]; - -if (recv(outerSocket, buffer, strlen(OK_LOGIN), 0) <= 0) - { - printf("Receive login answer error: '%s'\n", strerror(errno)); - errorMsg = RECV_LOGIN_ANSWER_ERROR; - return st_recv_fail; - } - -if (strncmp(OK_LOGIN, buffer, strlen(OK_LOGIN)) == 0) - { - return st_ok; - } -else - { - 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]; -memset(loginZ, 0, ADM_LOGIN_LEN); -BLOWFISH_CTX ctx; -InitContext(password.c_str(), PASSWD_LEN, &ctx); -EncryptString(loginZ, login.c_str(), std::min(login.length(), ADM_LOGIN_LEN), &ctx); -if (send(outerSocket, loginZ, ADM_LOGIN_LEN, 0) <= 0) - { - errorMsg = SEND_LOGIN_ERROR; - return st_send_fail; - } -return st_ok; -} -//--------------------------------------------------------------------------- -int NETTRANSACT::RxLoginSAnswer() -{ -char buffer[sizeof(OK_LOGINS) + 1]; - -if (recv(outerSocket, buffer, strlen(OK_LOGINS), 0) <= 0) - { - printf("Receive secret login answer error: '%s'\n", strerror(errno)); - errorMsg = RECV_LOGIN_ANSWER_ERROR; - return st_recv_fail; - } - -if (strncmp(OK_LOGINS, buffer, strlen(OK_LOGINS)) == 0) - { - return st_ok; - } -else - { - 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) -{ -BLOWFISH_CTX ctx; -InitContext(password.c_str(), PASSWD_LEN, &ctx); -char buffer[text.length()]; -EncryptString(buffer, text.c_str(), text.length(), &ctx); -if (send(outerSocket, buffer, text.length(), 0) <= 0) - { - errorMsg = SEND_DATA_ERROR; - return st_send_fail; - } -return st_ok; -} -//--------------------------------------------------------------------------- -int NETTRANSACT::RxDataAnswer(CALLBACK callback, void * data) -{ -BLOWFISH_CTX ctx; -InitContext(password.c_str(), PASSWD_LEN, &ctx); - -std::string chunk; -while (true) - { - char bufferS[ENC_MSG_LEN]; - size_t toRead = ENC_MSG_LEN; - while (toRead > 0) - { - int ret = recv(outerSocket, &bufferS[ENC_MSG_LEN - toRead], toRead, 0); - if (ret <= 0) - { - printf("Receive data error: '%s'\n", strerror(errno)); - close(outerSocket); - errorMsg = RECV_DATA_ANSWER_ERROR; - return st_recv_fail; - } - toRead -= ret; - } - - char buffer[ENC_MSG_LEN]; - DecryptBlock(buffer, bufferS, &ctx); - - bool final = false; - size_t pos = 0; - for (; pos < ENC_MSG_LEN && buffer[pos] != 0; pos++) ; - if (pos < ENC_MSG_LEN && buffer[pos] == 0) - final = true; - - if (pos > 0) - chunk.append(&buffer[0], &buffer[pos]); - - if (chunk.length() > MAX_XML_CHUNK_LENGTH || final) - { - if (callback) - if (!callback(chunk, final, data)) - return st_xml_parse_error; - chunk.clear(); - } - - if (final) - return st_ok; - } -}