* Author : Boris Mikhailenko <stg34@stargazer.dp.ua>
*/
- /*
- $Revision: 1.6 $
- $Date: 2009/02/06 10:25:54 $
- $Author: faust $
- */
+#include "netunit.h"
+
+#include "stg/servconf_types.h"
+#include "stg/common.h"
+#include "stg/blowfish.h"
+
+#include <algorithm> // std::min
+
+#include <cstdio>
+#include <cerrno>
+#include <cstring>
-//---------------------------------------------------------------------------
#include <netdb.h>
#include <arpa/inet.h>
#include <unistd.h>
-#include <cstdio>
-#include <cstring>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
-#include "netunit.h"
-#include "stg/common.h"
+using namespace STG;
+
+namespace
+{
+
+const std::string::size_type MAX_XML_CHUNK_LENGTH = 2048;
+
+}
//---------------------------------------------------------------------------
#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_HEADER_ANSWER_ERROR "Recv header answer error!"
//---------------------------------------------------------------------------
-NETTRANSACT::NETTRANSACT()
- : port(0),
- 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)
+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)
{
-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)
{
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)
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;
//---------------------------------------------------------------------------
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;
//---------------------------------------------------------------------------
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;
return st_recv_fail;
}
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;
//---------------------------------------------------------------------------
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;
return st_recv_fail;
}
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;
//---------------------------------------------------------------------------
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;
return st_recv_fail;
}
}
}
//---------------------------------------------------------------------------
-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)
+int NETTRANSACT::RxDataAnswer(CALLBACK callback, void * 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);
+EnDecodeInit(password.c_str(), PASSWD_LEN, &ctx);
-for (int j = 0; j < l; j++)
+std::string chunk;
+while (true)
{
- 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 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);
-
-while (1)
- {
- ret = recv(outerSocket, &bufferS[n++], 1, 0);
- if (ret <= 0)
+ char bufferS[ENC_MSG_LEN];
+ size_t toRead = ENC_MSG_LEN;
+ while (toRead > 0)
{
- 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);
- 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();
-}
-//---------------------------------------------------------------------------
git.stg.codes / stg.git / blobdiff