2 * This program is free software; you can redistribute it and/or modify
3 * it under the terms of the GNU General Public License as published by
4 * the Free Software Foundation; either version 2 of the License, or
5 * (at your option) any later version.
7 * This program is distributed in the hope that it will be useful,
8 * but WITHOUT ANY WARRANTY; without even the implied warranty of
9 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
10 * GNU General Public License for more details.
12 * You should have received a copy of the GNU General Public License
13 * along with this program; if not, write to the Free Software
14 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18 * Author : Boris Mikhailenko <stg34@stargazer.dp.ua>
23 #include "stg/servconf_types.h"
24 #include "stg/common.h"
25 #include "stg/blowfish.h"
26 #include "stg/bfstream.h"
28 #include <algorithm> // std::min
36 #include <arpa/inet.h>
39 #include <sys/types.h>
40 #include <sys/socket.h>
41 #include <netinet/in.h>
51 NETTRANSACT::CALLBACK callback;
58 //---------------------------------------------------------------------------
60 #define SEND_DATA_ERROR "Send data error!"
61 #define RECV_DATA_ANSWER_ERROR "Recv data answer error!"
62 #define UNKNOWN_ERROR "Unknown error!"
63 #define CONNECT_FAILED "Connect failed!"
64 #define BIND_FAILED "Bind failed!"
65 #define INCORRECT_LOGIN "Incorrect login!"
66 #define INCORRECT_HEADER "Incorrect header!"
67 #define SEND_LOGIN_ERROR "Send login error!"
68 #define RECV_LOGIN_ANSWER_ERROR "Recv login answer error!"
69 #define CREATE_SOCKET_ERROR "Create socket failed!"
70 #define WSASTARTUP_FAILED "WSAStartup failed!"
71 #define SEND_HEADER_ERROR "Send header error!"
72 #define RECV_HEADER_ANSWER_ERROR "Recv header answer error!"
74 //---------------------------------------------------------------------------
75 NETTRANSACT::NETTRANSACT(const std::string & s, uint16_t p,
76 const std::string & l, const std::string & pwd)
85 //---------------------------------------------------------------------------
86 NETTRANSACT::NETTRANSACT(const std::string & s, uint16_t p,
87 const std::string & la, uint16_t lp,
88 const std::string & l, const std::string & pwd)
98 //---------------------------------------------------------------------------
99 NETTRANSACT::~NETTRANSACT()
103 //---------------------------------------------------------------------------
104 int NETTRANSACT::Connect()
106 sock = socket(PF_INET, SOCK_STREAM, 0);
109 errorMsg = CREATE_SOCKET_ERROR;
113 if (!localAddress.empty())
118 unsigned long ip = inet_addr(localAddress.c_str());
120 if (ip == INADDR_NONE)
122 struct hostent * phe = gethostbyname(localAddress.c_str());
125 errorMsg = "DNS error.\nCan not reslove " + localAddress;
130 memcpy(&he, phe, sizeof(he));
131 ip = *((long *)he.h_addr_list[0]);
134 struct sockaddr_in localAddr;
135 memset(&localAddr, 0, sizeof(localAddr));
136 localAddr.sin_family = AF_INET;
137 localAddr.sin_port = htons(localPort);
138 localAddr.sin_addr.s_addr = ip;
140 if (bind(sock, (struct sockaddr *)&localAddr, sizeof(localAddr)) < 0)
142 errorMsg = BIND_FAILED;
147 struct sockaddr_in outerAddr;
148 memset(&outerAddr, 0, sizeof(outerAddr));
150 unsigned long ip = inet_addr(server.c_str());
152 if (ip == INADDR_NONE)
154 struct hostent * phe = gethostbyname(server.c_str());
157 errorMsg = "DNS error.\nCan not reslove " + server;
162 memcpy(&he, phe, sizeof(he));
163 ip = *((long *)he.h_addr_list[0]);
166 outerAddr.sin_family = AF_INET;
167 outerAddr.sin_port = htons(port);
168 outerAddr.sin_addr.s_addr = ip;
170 if (connect(sock, (struct sockaddr *)&outerAddr, sizeof(outerAddr)) < 0)
172 errorMsg = CONNECT_FAILED;
178 //---------------------------------------------------------------------------
179 void NETTRANSACT::Disconnect()
183 shutdown(sock, SHUT_RDWR);
188 //---------------------------------------------------------------------------
189 int NETTRANSACT::Transact(const std::string & request, CALLBACK callback, void * data)
192 if ((ret = TxHeader()) != st_ok)
195 if ((ret = RxHeaderAnswer()) != st_ok)
198 if ((ret = TxLogin()) != st_ok)
201 if ((ret = RxLoginAnswer()) != st_ok)
204 if ((ret = TxLoginS()) != st_ok)
207 if ((ret = RxLoginSAnswer()) != st_ok)
210 if ((ret = TxData(request)) != st_ok)
213 if ((ret = RxDataAnswer(callback, data)) != st_ok)
218 //---------------------------------------------------------------------------
219 int NETTRANSACT::TxHeader()
221 if (!WriteAll(sock, STG_HEADER, strlen(STG_HEADER)))
223 errorMsg = SEND_HEADER_ERROR;
229 //---------------------------------------------------------------------------
230 int NETTRANSACT::RxHeaderAnswer()
232 char buffer[sizeof(STG_HEADER) + 1];
234 if (!ReadAll(sock, buffer, strlen(OK_HEADER)))
236 printf("Receive header answer error: '%s'\n", strerror(errno));
237 errorMsg = RECV_HEADER_ANSWER_ERROR;
241 if (strncmp(OK_HEADER, buffer, strlen(OK_HEADER)) == 0)
244 if (strncmp(ERR_HEADER, buffer, strlen(ERR_HEADER)) == 0)
246 errorMsg = INCORRECT_HEADER;
247 return st_header_err;
251 errorMsg = UNKNOWN_ERROR;
252 return st_unknown_err;
255 //---------------------------------------------------------------------------
256 int NETTRANSACT::TxLogin()
258 char loginZ[ADM_LOGIN_LEN + 1];
259 memset(loginZ, 0, ADM_LOGIN_LEN + 1);
260 strncpy(loginZ, login.c_str(), ADM_LOGIN_LEN);
262 if (!WriteAll(sock, loginZ, ADM_LOGIN_LEN))
264 errorMsg = SEND_LOGIN_ERROR;
270 //---------------------------------------------------------------------------
271 int NETTRANSACT::RxLoginAnswer()
273 char buffer[sizeof(OK_LOGIN) + 1];
275 if (!ReadAll(sock, buffer, strlen(OK_LOGIN)))
277 printf("Receive login answer error: '%s'\n", strerror(errno));
278 errorMsg = RECV_LOGIN_ANSWER_ERROR;
282 if (strncmp(OK_LOGIN, buffer, strlen(OK_LOGIN)) == 0)
285 if (strncmp(ERR_LOGIN, buffer, strlen(ERR_LOGIN)) == 0)
287 errorMsg = INCORRECT_LOGIN;
292 errorMsg = UNKNOWN_ERROR;
293 return st_unknown_err;
296 //---------------------------------------------------------------------------
297 int NETTRANSACT::TxLoginS()
299 char loginZ[ADM_LOGIN_LEN + 1];
300 memset(loginZ, 0, ADM_LOGIN_LEN + 1);
303 InitContext(password.c_str(), PASSWD_LEN, &ctx);
304 EncryptString(loginZ, login.c_str(), std::min<size_t>(login.length() + 1, ADM_LOGIN_LEN), &ctx);
305 if (!WriteAll(sock, loginZ, ADM_LOGIN_LEN))
307 errorMsg = SEND_LOGIN_ERROR;
313 //---------------------------------------------------------------------------
314 int NETTRANSACT::RxLoginSAnswer()
316 char buffer[sizeof(OK_LOGINS) + 1];
318 if (!ReadAll(sock, buffer, strlen(OK_LOGINS)))
320 printf("Receive secret login answer error: '%s'\n", strerror(errno));
321 errorMsg = RECV_LOGIN_ANSWER_ERROR;
325 if (strncmp(OK_LOGINS, buffer, strlen(OK_LOGINS)) == 0)
328 if (strncmp(ERR_LOGINS, buffer, strlen(ERR_LOGINS)) == 0)
330 errorMsg = INCORRECT_LOGIN;
331 return st_logins_err;
335 errorMsg = UNKNOWN_ERROR;
336 return st_unknown_err;
339 //---------------------------------------------------------------------------
340 int NETTRANSACT::TxData(const std::string & text)
342 STG::ENCRYPT_STREAM stream(password, TxCrypto, this);
343 stream.Put(text.c_str(), text.length() + 1, true);
346 errorMsg = SEND_DATA_ERROR;
352 //---------------------------------------------------------------------------
353 int NETTRANSACT::RxDataAnswer(CALLBACK callback, void * data)
355 ReadState state = {false, callback, data, this};
356 STG::DECRYPT_STREAM stream(password, RxCrypto, &state);
360 ssize_t res = read(sock, buffer, sizeof(buffer));
363 printf("Receive data error: '%s'\n", strerror(errno));
364 errorMsg = RECV_DATA_ANSWER_ERROR;
367 stream.Put(buffer, res, res == 0);
369 return st_xml_parse_error;
374 //---------------------------------------------------------------------------
375 bool NETTRANSACT::TxCrypto(const void * block, size_t size, void * data)
377 assert(data != NULL);
378 NETTRANSACT & nt = *static_cast<NETTRANSACT *>(data);
379 if (!WriteAll(nt.sock, block, size))
383 //---------------------------------------------------------------------------
384 bool NETTRANSACT::RxCrypto(const void * block, size_t size, void * data)
386 assert(data != NULL);
387 ReadState & state = *static_cast<ReadState *>(data);
389 const char * buffer = static_cast<const char *>(block);
390 for (size_t pos = 0; pos < size; ++pos)
391 if (buffer[pos] == 0)
394 size = pos; // Adjust string size
398 if (!state.callback(std::string(buffer, size), state.final, state.callbackData))