X-Git-Url: https://git.stg.codes/stg.git/blobdiff_plain/198f8204d13f3f0661233d910f474775a68a7337..4e95741287ce4385f16eaf9d621cedd4dccbcfe3:/stglibs/srvconf.lib/netunit.cpp diff --git a/stglibs/srvconf.lib/netunit.cpp b/stglibs/srvconf.lib/netunit.cpp index eab32e6a..3461fb47 100644 --- a/stglibs/srvconf.lib/netunit.cpp +++ b/stglibs/srvconf.lib/netunit.cpp @@ -18,16 +18,13 @@ * Author : Boris Mikhailenko */ - /* - $Revision: 1.6 $ - $Date: 2009/02/06 10:25:54 $ - $Author: faust $ - */ - -//--------------------------------------------------------------------------- +#include "netunit.h" -#include "stg/netunit.h" +#include "stg/servconf_types.h" #include "stg/common.h" +#include "stg/blowfish.h" + +#include // std::min #include #include @@ -37,12 +34,26 @@ #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!" @@ -53,43 +64,32 @@ #define RECV_HEADER_ANSWER_ERROR "Recv header answer error!" //--------------------------------------------------------------------------- -NETTRANSACT::NETTRANSACT() - : port(0), - outerSocket(-1), - RxCallBack(NULL), - dataRxCallBack(NULL) +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) { } -//----------------------------------------------------------------------------- -void NETTRANSACT::EnDecryptInit(const char * passwd, int, BLOWFISH_CTX *ctx) -{ -unsigned char * keyL = NULL; - -keyL = new unsigned char[PASSWD_LEN]; - -memset(keyL, 0, PASSWD_LEN); - -strncpy((char *)keyL, passwd, PASSWD_LEN); - -Blowfish_Init(ctx, keyL, PASSWD_LEN); - -delete[] keyL; -} -//----------------------------------------------------------------------------- -void NETTRANSACT::Encrypt(char * d, const char * s, BLOWFISH_CTX *ctx) -{ -EncodeString(d, s, ctx); -} //--------------------------------------------------------------------------- -void NETTRANSACT::Decrypt(char * d, const char * s, BLOWFISH_CTX *ctx) +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) { -DecodeString(d, s, ctx); } //--------------------------------------------------------------------------- int NETTRANSACT::Connect() { -int ret; - outerSocket = socket(PF_INET, SOCK_STREAM, 0); if (outerSocket < 0) { @@ -97,49 +97,80 @@ if (outerSocket < 0) 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)); -struct hostent he; -struct hostent * phe; - -unsigned long ip; -ip = inet_addr(server.c_str()); +unsigned long ip = inet_addr(server.c_str()); if (ip == INADDR_NONE) { - phe = gethostbyname(server.c_str()); + 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]); + ip = *((long *)he.h_addr_list[0]); } + outerAddr.sin_family = AF_INET; outerAddr.sin_port = htons(port); outerAddr.sin_addr.s_addr = ip; -ret = connect(outerSocket, (struct sockaddr*)&outerAddr, sizeof(outerAddr)); - -if (ret < 0) +if (connect(outerSocket, (struct sockaddr *)&outerAddr, sizeof(outerAddr)) < 0) { errorMsg = CONNECT_FAILED; close(outerSocket); return st_conn_fail; } + return st_ok; } //--------------------------------------------------------------------------- -int NETTRANSACT::Disconnect() +void NETTRANSACT::Disconnect() { close(outerSocket); -return 0; } //--------------------------------------------------------------------------- -int NETTRANSACT::Transact(const char * data) +int NETTRANSACT::Transact(const std::string & request, CALLBACK callback, void * data) { int ret; if ((ret = TxHeader()) != st_ok) @@ -178,13 +209,13 @@ if ((ret = RxLoginSAnswer()) != st_ok) return ret; } -if ((ret = TxData(data)) != st_ok) +if ((ret = TxData(request)) != st_ok) { Disconnect(); return ret; } -if ((ret = RxDataAnswer()) != st_ok) +if ((ret = RxDataAnswer(callback, data)) != st_ok) { Disconnect(); return ret; @@ -195,9 +226,7 @@ return st_ok; //--------------------------------------------------------------------------- int NETTRANSACT::TxHeader() { -int ret; -ret = send(outerSocket, STG_HEADER, strlen(STG_HEADER), 0); -if (ret <= 0) +if (send(outerSocket, STG_HEADER, strlen(STG_HEADER), 0) <= 0) { errorMsg = SEND_HEADER_ERROR; return st_send_fail; @@ -208,11 +237,9 @@ return st_ok; //--------------------------------------------------------------------------- int NETTRANSACT::RxHeaderAnswer() { -char buffer[sizeof(STG_HEADER)+1]; -int ret; +char buffer[sizeof(STG_HEADER) + 1]; -ret = recv(outerSocket, buffer, strlen(OK_HEADER), 0); -if (ret <= 0) +if (recv(outerSocket, buffer, strlen(OK_HEADER), 0) <= 0) { printf("Receive header answer error: '%s'\n", strerror(errno)); errorMsg = RECV_HEADER_ANSWER_ERROR; @@ -241,13 +268,10 @@ else int NETTRANSACT::TxLogin() { char loginZ[ADM_LOGIN_LEN]; -int ret; - memset(loginZ, 0, ADM_LOGIN_LEN); strncpy(loginZ, login.c_str(), ADM_LOGIN_LEN); -ret = send(outerSocket, loginZ, ADM_LOGIN_LEN, 0); -if (ret <= 0) +if (send(outerSocket, loginZ, ADM_LOGIN_LEN, 0) <= 0) { errorMsg = SEND_LOGIN_ERROR; return st_send_fail; @@ -258,11 +282,9 @@ return st_ok; //--------------------------------------------------------------------------- int NETTRANSACT::RxLoginAnswer() { -char buffer[sizeof(OK_LOGIN)+1]; -int ret; +char buffer[sizeof(OK_LOGIN) + 1]; -ret = recv(outerSocket, buffer, strlen(OK_LOGIN), 0); -if (ret <= 0) +if (recv(outerSocket, buffer, strlen(OK_LOGIN), 0) <= 0) { printf("Receive login answer error: '%s'\n", strerror(errno)); errorMsg = RECV_LOGIN_ANSWER_ERROR; @@ -291,36 +313,23 @@ else int NETTRANSACT::TxLoginS() { char loginZ[ADM_LOGIN_LEN]; -char ct[ENC_MSG_LEN]; -int ret; - memset(loginZ, 0, ADM_LOGIN_LEN); -strncpy(loginZ, login.c_str(), ADM_LOGIN_LEN); - BLOWFISH_CTX ctx; -EnDecryptInit(password.c_str(), PASSWD_LEN, &ctx); - -for (int j = 0; j < ADM_LOGIN_LEN / ENC_MSG_LEN; j++) +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) { - Encrypt(ct, loginZ + j*ENC_MSG_LEN, &ctx); - ret = send(outerSocket, ct, ENC_MSG_LEN, 0); - if (ret <= 0) - { - errorMsg = SEND_LOGIN_ERROR; - return st_send_fail; - } + errorMsg = SEND_LOGIN_ERROR; + return st_send_fail; } - return st_ok; } //--------------------------------------------------------------------------- int NETTRANSACT::RxLoginSAnswer() { -char buffer[sizeof(OK_LOGINS)+1]; -int ret; +char buffer[sizeof(OK_LOGINS) + 1]; -ret = recv(outerSocket, buffer, strlen(OK_LOGINS), 0); -if (ret <= 0) +if (recv(outerSocket, buffer, strlen(OK_LOGINS), 0) <= 0) { printf("Receive secret login answer error: '%s'\n", strerror(errno)); errorMsg = RECV_LOGIN_ANSWER_ERROR; @@ -346,151 +355,64 @@ else } } //--------------------------------------------------------------------------- -int NETTRANSACT::TxData(const char * text) +int NETTRANSACT::TxData(const std::string & text) { -char textZ[ENC_MSG_LEN]; -char ct[ENC_MSG_LEN]; -int ret; -int j; - -int n = strlen(text) / ENC_MSG_LEN; -int r = strlen(text) % ENC_MSG_LEN; - BLOWFISH_CTX ctx; -EnDecryptInit(password.c_str(), PASSWD_LEN, &ctx); - -for (j = 0; j < n; j++) - { - strncpy(textZ, text + j*ENC_MSG_LEN, ENC_MSG_LEN); - Encrypt(ct, textZ, &ctx); - ret = send(outerSocket, ct, ENC_MSG_LEN, 0); - if (ret <= 0) - { - errorMsg = SEND_DATA_ERROR; - return st_send_fail; - } - } - -memset(textZ, 0, ENC_MSG_LEN); -if (r) - strncpy(textZ, text + j*ENC_MSG_LEN, ENC_MSG_LEN); - -EnDecryptInit(password.c_str(), PASSWD_LEN, &ctx); - -Encrypt(ct, textZ, &ctx); -ret = send(outerSocket, ct, ENC_MSG_LEN, 0); -if (ret <= 0) +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::TxData(char * data) -{ -char buff[ENC_MSG_LEN]; -char buffS[ENC_MSG_LEN]; -char passwd[ADM_PASSWD_LEN]; - -memset(passwd, 0, ADM_PASSWD_LEN); -strncpy(passwd, password.c_str(), ADM_PASSWD_LEN); -memset(buff, 0, ENC_MSG_LEN); - -int l = strlen(data)/ENC_MSG_LEN; -if (strlen(data)%ENC_MSG_LEN) - l++; - -BLOWFISH_CTX ctx; -EnDecryptInit(passwd, PASSWD_LEN, &ctx); - -for (int j = 0; j < l; j++) - { - strncpy(buff, &data[j*ENC_MSG_LEN], ENC_MSG_LEN); - Encrypt(buffS, buff, &ctx); - send(outerSocket, buffS, ENC_MSG_LEN, 0); - } - -return 0; -} -//--------------------------------------------------------------------------- -int NETTRANSACT::RxDataAnswer() +int NETTRANSACT::RxDataAnswer(CALLBACK callback, void * data) { -int n = 0; -int ret; -char bufferS[ENC_MSG_LEN]; -char buffer[ENC_MSG_LEN + 1]; - BLOWFISH_CTX ctx; -EnDecryptInit(password.c_str(), PASSWD_LEN, &ctx); +InitContext(password.c_str(), PASSWD_LEN, &ctx); -while (1) +std::string chunk; +while (true) { - ret = recv(outerSocket, &bufferS[n++], 1, 0); - if (ret <= 0) + char bufferS[ENC_MSG_LEN]; + size_t toRead = ENC_MSG_LEN; + while (toRead > 0) { - printf("Receive data error: '%s'\n", strerror(errno)); - close(outerSocket); - errorMsg = RECV_DATA_ANSWER_ERROR; - return st_recv_fail; + 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; } - if (n == ENC_MSG_LEN) - { - n = 0; - Decrypt(buffer, bufferS, &ctx); - buffer[ENC_MSG_LEN] = 0; + char buffer[ENC_MSG_LEN]; + DecryptBlock(buffer, bufferS, &ctx); - answerList.push_back(buffer); + 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; - for (int j = 0; j < ENC_MSG_LEN; j++) - { - if (buffer[j] == 0) - { - if (RxCallBack) - if (st_ok != RxCallBack(dataRxCallBack, &answerList)) - return st_xml_parse_error; - return st_ok; - } - } + 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; } } -//--------------------------------------------------------------------------- -void NETTRANSACT::SetLogin(const char * l) -{ -login = l; -} -//--------------------------------------------------------------------------- -void NETTRANSACT::SetPassword(const char * p) -{ -password = p; -} -//--------------------------------------------------------------------------- -void NETTRANSACT::SetServer(const char * serverName) -{ -server = serverName; -} -//--------------------------------------------------------------------------- -void NETTRANSACT::SetServerPort(short unsigned p) -{ -port = p; -} -//--------------------------------------------------------------------------- -void NETTRANSACT::SetRxCallback(void * data, RxCallback_t cb) -{ -RxCallBack = cb; -dataRxCallBack = data; -} -//--------------------------------------------------------------------------- -const std::string & NETTRANSACT::GetError() const -{ -return errorMsg; -} -//--------------------------------------------------------------------------- -void NETTRANSACT::Reset() -{ -answerList.clear(); -} -//---------------------------------------------------------------------------