X-Git-Url: https://git.stg.codes/stg.git/blobdiff_plain/6bd4918f85f22955197b200d79972d22159e89d8..5a98249bfadbe1d22d316dc3e9e770e0c305e5d6:/stglibs/srvconf.lib/netunit.cpp diff --git a/stglibs/srvconf.lib/netunit.cpp b/stglibs/srvconf.lib/netunit.cpp index db22a3a0..164823d8 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 @@ -37,6 +34,19 @@ #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!" @@ -59,41 +69,12 @@ NETTRANSACT::NETTRANSACT(const std::string & s, uint16_t p, port(p), login(l), password(pwd), - outerSocket(-1), - RxCallBack(NULL), - dataRxCallBack(NULL) -{ -} -//----------------------------------------------------------------------------- -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) + outerSocket(-1) { -EncodeString(d, s, ctx); -} -//--------------------------------------------------------------------------- -void NETTRANSACT::Decrypt(char * d, const char * s, BLOWFISH_CTX *ctx) -{ -DecodeString(d, s, ctx); } //--------------------------------------------------------------------------- int NETTRANSACT::Connect() { -int ret; - outerSocket = socket(PF_INET, SOCK_STREAM, 0); if (outerSocket < 0) { @@ -104,46 +85,42 @@ if (outerSocket < 0) 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) @@ -182,13 +159,13 @@ 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; @@ -199,9 +176,7 @@ 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; @@ -212,11 +187,9 @@ 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; @@ -245,13 +218,10 @@ 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; @@ -262,11 +232,9 @@ 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; @@ -295,20 +263,17 @@ 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); +EnDecodeInit(password.c_str(), PASSWD_LEN, &ctx); for (int j = 0; j < ADM_LOGIN_LEN / ENC_MSG_LEN; j++) { - Encrypt(ct, loginZ + j*ENC_MSG_LEN, &ctx); - ret = send(outerSocket, ct, ENC_MSG_LEN, 0); - if (ret <= 0) + char ct[ENC_MSG_LEN]; + EncodeString(ct, loginZ + j * ENC_MSG_LEN, &ctx); + if (send(outerSocket, ct, ENC_MSG_LEN, 0) <= 0) { errorMsg = SEND_LOGIN_ERROR; return st_send_fail; @@ -320,11 +285,9 @@ 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; @@ -350,134 +313,75 @@ 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); +EnDecodeInit(password.c_str(), PASSWD_LEN, &ctx); -for (j = 0; j < n; j++) +size_t pos = 0; +while (pos < text.size()) { - 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) + char textZ[ENC_MSG_LEN]; + if (text.size() - pos < ENC_MSG_LEN) + memset(textZ, 0, ENC_MSG_LEN); + strncpy(textZ, text.c_str() + pos, std::min(ENC_MSG_LEN, (int)(text.size() - pos))); + char ct[ENC_MSG_LEN]; + EncodeString(ct, textZ, &ctx); + if (send(outerSocket, ct, ENC_MSG_LEN, 0) <= 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) - { - errorMsg = SEND_DATA_ERROR; - return st_send_fail; + pos += ENC_MSG_LEN; } 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); +EnDecodeInit(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]; + DecodeString(buffer, bufferS, &ctx); - printf("%s", 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; - answerList.push_back(buffer); + if (pos > 0) + chunk.append(&buffer[0], &buffer[pos]); - for (int j = 0; j < ENC_MSG_LEN; j++) - { - if (buffer[j] == 0) - { - printf("\n"); - if (RxCallBack) - if (st_ok != RxCallBack(dataRxCallBack, &answerList)) - return st_xml_parse_error; - return st_ok; - } - } + 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::SetRxCallback(void * data, RxCallback_t cb) -{ -RxCallBack = cb; -dataRxCallBack = data; -} -//--------------------------------------------------------------------------- -const std::string & NETTRANSACT::GetError() const -{ -return errorMsg; -} -//--------------------------------------------------------------------------- -void NETTRANSACT::Reset() -{ -answerList.clear(); -} -//---------------------------------------------------------------------------