[151] | 1 | #include "server.h" |
---|
| 2 | |
---|
| 3 | int main(int argc, char ** argv) |
---|
| 4 | { |
---|
| 5 | /* variables to parse arguments */ |
---|
| 6 | extern int optind, |
---|
| 7 | optopt; |
---|
| 8 | extern char * optarg; |
---|
| 9 | |
---|
| 10 | char * log_file; |
---|
| 11 | int c = (int)NULL, |
---|
| 12 | errflg = (int)NULL, |
---|
| 13 | verbose = (int)NULL, |
---|
| 14 | optval = 1; |
---|
| 15 | |
---|
| 16 | socklen_t optlen = sizeof(optval); |
---|
| 17 | |
---|
| 18 | /* fd -> file descriptor */ |
---|
| 19 | int socket_server_fd = (int)NULL, |
---|
| 20 | socket_server_port = (int)NULL, |
---|
| 21 | socket_accept_fd = (int)NULL, |
---|
| 22 | sockaddr_in_size = sizeof(struct sockaddr_in), |
---|
| 23 | err = (int)NULL; |
---|
| 24 | |
---|
| 25 | /* Internet socket address stuct */ |
---|
| 26 | struct sockaddr_in server_addr, |
---|
| 27 | accept_addr; |
---|
| 28 | |
---|
| 29 | struct client * clients = (struct client *) NULL, |
---|
| 30 | * current = (struct client *) NULL; |
---|
| 31 | |
---|
| 32 | pthread_t threads; |
---|
| 33 | |
---|
| 34 | /* clear screen */ |
---|
| 35 | system(__CLEAR_SCREEN__); |
---|
| 36 | |
---|
| 37 | while ( (c = getopt(argc, argv, ":vp:")) != -1 ) |
---|
| 38 | { |
---|
| 39 | switch ( c ) |
---|
| 40 | { |
---|
| 41 | case 'p': |
---|
| 42 | if ( socket_server_port = strtol(optarg, 0, 10) == 0 ) |
---|
| 43 | { |
---|
| 44 | fprintf(stderr, "Option -%c requires a valid port and '%s' isn't valid\n", optopt, optarg); |
---|
| 45 | ++errflg; |
---|
| 46 | } |
---|
| 47 | break; |
---|
| 48 | case 'v': |
---|
| 49 | verbose = 1; |
---|
| 50 | break; |
---|
| 51 | case ':': |
---|
| 52 | /* -f or -o without operand */ |
---|
| 53 | fprintf(stderr, "Option -%c requires an operand\n", optopt); |
---|
| 54 | ++errflg; |
---|
| 55 | break; |
---|
| 56 | case '?': |
---|
| 57 | fprintf(stderr, "Unrecognized option: -%c\n", optopt); |
---|
| 58 | ++errflg; |
---|
| 59 | } |
---|
| 60 | } |
---|
| 61 | if ( errflg ) |
---|
| 62 | { |
---|
| 63 | fprintf(stderr, "usage: . . . \n\n"); |
---|
| 64 | exit(2); |
---|
| 65 | } |
---|
| 66 | |
---|
| 67 | /* make a socket */ |
---|
| 68 | socket_server_fd = socket(AF_INET, SOCK_STREAM, 0); |
---|
| 69 | if ( socket_server_fd == __SOCKET_ERROR__ ) |
---|
| 70 | { |
---|
| 71 | printf("\nCould not make a socket\n"); |
---|
| 72 | return 0; |
---|
| 73 | } |
---|
| 74 | |
---|
| 75 | bzero((char *) &server_addr, sockaddr_in_size); |
---|
| 76 | bzero((char *) &accept_addr, sockaddr_in_size); |
---|
| 77 | |
---|
| 78 | if ( !socket_server_port ) |
---|
| 79 | socket_server_port = __DEFAULT_OPEN_PORT__; |
---|
| 80 | |
---|
| 81 | /* fill address struct */ |
---|
| 82 | server_addr.sin_addr.s_addr = INADDR_ANY; |
---|
| 83 | server_addr.sin_port = htons(socket_server_port); |
---|
| 84 | server_addr.sin_family = AF_INET; |
---|
| 85 | bzero(&(server_addr.sin_zero), 8); |
---|
| 86 | |
---|
| 87 | if ( __DEBUG__ || verbose ) |
---|
| 88 | printf("\nBinding to port %d...\n", socket_server_port); |
---|
| 89 | |
---|
| 90 | /* bind to a port */ |
---|
| 91 | if ( bind(socket_server_fd, (struct sockaddr *)&(server_addr), sizeof(server_addr)) == __SOCKET_ERROR__ ) |
---|
| 92 | { |
---|
| 93 | printf("\nCould not connect to host\n"); |
---|
| 94 | exit(1); |
---|
| 95 | } |
---|
| 96 | |
---|
| 97 | /* get port number */ |
---|
| 98 | getsockname(socket_server_fd, (struct sockaddr *)&(server_addr), (socklen_t *) &(sockaddr_in_size)); |
---|
| 99 | if ( __DEBUG__ || verbose ) |
---|
| 100 | { |
---|
| 101 | printf("\nopened socket as fd (%d) on port (%d) for stream i/o\n", socket_server_fd, ntohs(server_addr.sin_port)); |
---|
| 102 | |
---|
| 103 | printf("Server\n\ |
---|
| 104 | sin_family = %d\n\ |
---|
| 105 | sin_addr.s_addr = %d\n\ |
---|
| 106 | sin_port = %d\n" |
---|
| 107 | , server_addr.sin_family |
---|
| 108 | , server_addr.sin_addr.s_addr |
---|
| 109 | , ntohs(server_addr.sin_port) |
---|
| 110 | ); |
---|
| 111 | printf("\nMaking a listen queue of %d elements", __QUEUE_SIZE__); |
---|
| 112 | } |
---|
| 113 | |
---|
| 114 | /* establish listen queue */ |
---|
| 115 | if ( listen(socket_server_fd, __QUEUE_SIZE__) == __SOCKET_ERROR__ ) |
---|
| 116 | { |
---|
| 117 | printf("\nCould not listen\n"); |
---|
| 118 | return 0; |
---|
| 119 | } |
---|
| 120 | |
---|
| 121 | for ( ; ; ) |
---|
| 122 | { |
---|
| 123 | if ( __DEBUG__ || verbose ) |
---|
| 124 | puts("\nWaiting for a connection\n"); |
---|
| 125 | |
---|
| 126 | /* get the connected socket */ |
---|
| 127 | socket_accept_fd = accept(socket_server_fd, (struct sockaddr *) &(accept_addr), (socklen_t *) &(sockaddr_in_size)); |
---|
| 128 | fcntl(socket_accept_fd, F_SETFL, fcntl(socket_accept_fd, F_GETFL, 0) | O_NDELAY); |
---|
| 129 | |
---|
| 130 | if ( socket_accept_fd > -1 ) |
---|
| 131 | { |
---|
| 132 | if ( clients == (struct client *) NULL ) |
---|
| 133 | current = clients; |
---|
| 134 | else |
---|
| 135 | while ( (current = clients->next) != (struct client *) NULL ); |
---|
| 136 | |
---|
| 137 | current = (struct client *) malloc(sizeof(struct client)); |
---|
| 138 | current->next = (struct client *) NULL; |
---|
| 139 | current->fd = socket_accept_fd; |
---|
| 140 | current->sockaddr = accept_addr; |
---|
| 141 | current->last = time(NULL); |
---|
| 142 | |
---|
| 143 | char buffer_client[__BUFFER_SIZE__], |
---|
| 144 | buffer_jabber[__BUFFER_SIZE__]; |
---|
| 145 | struct client * client = current;//(struct client *) pClient; |
---|
| 146 | int i = 0, err; |
---|
| 147 | time_t last; |
---|
| 148 | |
---|
| 149 | char ip[46]; |
---|
| 150 | unsigned short port; |
---|
| 151 | inet_ntop(AF_INET, &(client->sockaddr.sin_addr), ip, sizeof (ip)); |
---|
| 152 | port = ntohs(client->sockaddr.sin_port); |
---|
| 153 | printf("\nGot a connection from %s, port %hu\n", ip, port); |
---|
| 154 | /*---------------------------------------------------*/ |
---|
| 155 | |
---|
| 156 | int jabber_fd = (int)NULL, |
---|
| 157 | jabber_port = (int)NULL, |
---|
| 158 | jabber_error = (int)NULL; |
---|
| 159 | |
---|
| 160 | struct sockaddr_in jabber_addr; |
---|
| 161 | |
---|
| 162 | jabber_port = __DEFAULT_JABBER_PORT__; |
---|
| 163 | jabber_fd = socket(AF_INET, SOCK_STREAM, 0); |
---|
| 164 | |
---|
| 165 | fcntl(jabber_fd, F_SETFL, fcntl(jabber_fd, F_GETFL, 0) | O_NDELAY); |
---|
| 166 | |
---|
| 167 | jabber_addr.sin_family = AF_INET; |
---|
| 168 | inet_aton(__DEFAULT_JABBER_IP__, &jabber_addr.sin_addr); |
---|
| 169 | //jabber_addr.sin_addr.s_addr = inet_addr(__DEFAULT_JABBER_IP__); |
---|
| 170 | jabber_addr.sin_port = htons(jabber_port); |
---|
| 171 | |
---|
| 172 | jabber_error = connect(jabber_fd, (struct sockaddr *) &(jabber_addr), sizeof(jabber_addr)); |
---|
| 173 | |
---|
| 174 | last = time(NULL); |
---|
| 175 | int client_is_connected = -1; |
---|
| 176 | int jabber_is_connected = -1; |
---|
| 177 | int sockaddr_in_size = sizeof(struct sockaddr_in); |
---|
| 178 | while ( client_is_connected != 0 ) |
---|
| 179 | { |
---|
| 180 | /* read from client */ |
---|
| 181 | puts("\tread - client"); |
---|
| 182 | bzero(buffer_client, __BUFFER_SIZE__); |
---|
| 183 | if ( (client_is_connected = read(client->fd, buffer_client, __BUFFER_SIZE__)) != 0 && strlen(buffer_jabber) > 0 ) |
---|
| 184 | { |
---|
| 185 | puts("\twrite - client"); |
---|
| 186 | printf("\t%s\n", buffer_jabber); |
---|
| 187 | /* write in the client */ |
---|
| 188 | write(client->fd, buffer_jabber, strlen(buffer_jabber)); |
---|
| 189 | } |
---|
| 190 | |
---|
| 191 | /* read from jabber service */ |
---|
| 192 | puts("\tread - jabber"); |
---|
| 193 | bzero(buffer_jabber, __BUFFER_SIZE__); |
---|
| 194 | if ( (jabber_is_connected = read(jabber_fd, buffer_jabber, __BUFFER_SIZE__)) && strlen(buffer_client) > 0 ) |
---|
| 195 | { |
---|
| 196 | puts("\twrite - jabber"); |
---|
| 197 | printf("\t%s\n", buffer_client); |
---|
| 198 | /* write in the jabber service */ |
---|
| 199 | if ( !strstr(buffer_jabber, "<proceed xmlns='urn:ietf:params:xml:ns:xmpp-tls'/>") ) |
---|
| 200 | write(jabber_fd, buffer_client, strlen(buffer_client)); |
---|
| 201 | } |
---|
| 202 | if ( strstr(buffer_jabber, "<proceed xmlns='urn:ietf:params:xml:ns:xmpp-tls'/>") ) |
---|
| 203 | { |
---|
| 204 | fcntl(jabber_fd, F_SETFL, fcntl(jabber_fd, F_GETFL, 0) | ~O_NDELAY); |
---|
| 205 | //starttls(&jabber_fd, &client->fd); |
---|
| 206 | int err; |
---|
| 207 | |
---|
| 208 | SSL_CTX * ctx; |
---|
| 209 | SSL * jabberssl; |
---|
| 210 | |
---|
| 211 | //OpenSSL_add_all_algorithms(); |
---|
| 212 | |
---|
| 213 | SSL_library_init(); |
---|
| 214 | SSL_load_error_strings(); |
---|
| 215 | |
---|
| 216 | if ( !(ctx = SSL_CTX_new(TLSv1_server_method())) ) |
---|
| 217 | { |
---|
| 218 | printf("Error creating the context.\n"); |
---|
| 219 | exit(0); |
---|
| 220 | } |
---|
| 221 | |
---|
| 222 | SSL_CTX_set_verify(ctx,SSL_VERIFY_NONE,NULL); |
---|
| 223 | |
---|
| 224 | jabberssl = SSL_new(ctx); |
---|
| 225 | |
---|
| 226 | puts("#1"); |
---|
| 227 | err=SSL_set_fd(jabberssl, jabber_fd); |
---|
| 228 | if ( err < 1 ) |
---|
| 229 | { |
---|
| 230 | puts("shsfghdfgh"); |
---|
| 231 | SSL_CTX_free(ctx); |
---|
| 232 | } |
---|
| 233 | |
---|
| 234 | puts("connect"); |
---|
| 235 | err = SSL_connect(jabberssl); |
---|
| 236 | if ( err < 1 ) |
---|
| 237 | { |
---|
| 238 | puts("client"); |
---|
| 239 | err = SSL_get_error(jabberssl, err); |
---|
| 240 | printf("%d\n", err); |
---|
| 241 | char err_str[1024]; |
---|
| 242 | ERR_error_string_n(ERR_get_error(), err_str, sizeof(err_str)); |
---|
| 243 | printf("%s\n", err_str); |
---|
| 244 | SSL_CTX_free(ctx); |
---|
| 245 | } |
---|
| 246 | } |
---|
| 247 | |
---|
| 248 | if ( jabber_is_connected == 0 ) |
---|
| 249 | client_is_connected = jabber_is_connected; |
---|
| 250 | |
---|
| 251 | puts("end loop"); |
---|
| 252 | usleep(500000); |
---|
| 253 | } |
---|
| 254 | |
---|
| 255 | if ( close(jabber_fd) == __SOCKET_ERROR__ ) |
---|
| 256 | { |
---|
| 257 | printf("\nCould not close jabber socket\n"); |
---|
| 258 | return 0; |
---|
| 259 | } |
---|
| 260 | /*---------------------------------------------------*/ |
---|
| 261 | if ( close(client->fd) == __SOCKET_ERROR__ ) |
---|
| 262 | { |
---|
| 263 | printf("\nCould not close socket\n"); |
---|
| 264 | return 0; |
---|
| 265 | } |
---|
| 266 | |
---|
| 267 | fflush(stdin); |
---|
| 268 | fflush(stdout); |
---|
| 269 | free(client); |
---|
| 270 | //pthread_create(&(threads), NULL, handler, (void *) current); |
---|
| 271 | } |
---|
| 272 | } |
---|
| 273 | pthread_exit(NULL); |
---|
| 274 | } |
---|
| 275 | |
---|
| 276 | void * handler(void * pClient) |
---|
| 277 | { |
---|
| 278 | char buffer_client[__BUFFER_SIZE__], |
---|
| 279 | buffer_jabber[__BUFFER_SIZE__]; |
---|
| 280 | struct client * client = (struct client *) pClient; |
---|
| 281 | int i = 0, err; |
---|
| 282 | time_t last; |
---|
| 283 | |
---|
| 284 | char ip[46]; |
---|
| 285 | unsigned short port; |
---|
| 286 | inet_ntop(AF_INET, &(client->sockaddr.sin_addr), ip, sizeof (ip)); |
---|
| 287 | port = ntohs(client->sockaddr.sin_port); |
---|
| 288 | printf("\nGot a connection from %s, port %hu\n", ip, port); |
---|
| 289 | /*---------------------------------------------------*/ |
---|
| 290 | |
---|
| 291 | int jabber_fd = (int)NULL, |
---|
| 292 | jabber_port = (int)NULL, |
---|
| 293 | jabber_error = (int)NULL; |
---|
| 294 | |
---|
| 295 | struct sockaddr_in jabber_addr; |
---|
| 296 | |
---|
| 297 | jabber_port = __DEFAULT_JABBER_PORT__; |
---|
| 298 | jabber_fd = socket(AF_INET, SOCK_STREAM, 0); |
---|
| 299 | |
---|
| 300 | fcntl(jabber_fd, F_SETFL, fcntl(jabber_fd, F_GETFL, 0) | O_NDELAY); |
---|
| 301 | |
---|
| 302 | jabber_addr.sin_family = AF_INET; |
---|
| 303 | inet_aton(__DEFAULT_JABBER_IP__, &jabber_addr.sin_addr); |
---|
| 304 | //jabber_addr.sin_addr.s_addr = inet_addr(__DEFAULT_JABBER_IP__); |
---|
| 305 | jabber_addr.sin_port = htons(jabber_port); |
---|
| 306 | |
---|
| 307 | jabber_error = connect(jabber_fd, (struct sockaddr *) &(jabber_addr), sizeof(jabber_addr)); |
---|
| 308 | |
---|
| 309 | last = time(NULL); |
---|
| 310 | int client_is_connected = -1; |
---|
| 311 | int jabber_is_connected = -1; |
---|
| 312 | int sockaddr_in_size = sizeof(struct sockaddr_in); |
---|
| 313 | while ( client_is_connected != 0 ) |
---|
| 314 | { |
---|
| 315 | /* read from client */ |
---|
| 316 | puts("\tread - client"); |
---|
| 317 | bzero(buffer_client, __BUFFER_SIZE__); |
---|
| 318 | if ( (client_is_connected = read(client->fd, buffer_client, __BUFFER_SIZE__)) != 0 && strlen(buffer_jabber) > 0 ) |
---|
| 319 | { |
---|
| 320 | puts("\twrite - client"); |
---|
| 321 | printf("\t%s\n", buffer_jabber); |
---|
| 322 | /* write in the client */ |
---|
| 323 | write(client->fd, buffer_jabber, strlen(buffer_jabber)); |
---|
| 324 | } |
---|
| 325 | |
---|
| 326 | /* read from jabber service */ |
---|
| 327 | puts("\tread - jabber"); |
---|
| 328 | bzero(buffer_jabber, __BUFFER_SIZE__); |
---|
| 329 | if ( (jabber_is_connected = read(jabber_fd, buffer_jabber, __BUFFER_SIZE__)) && strlen(buffer_client) > 0 ) |
---|
| 330 | { |
---|
| 331 | puts("\twrite - jabber"); |
---|
| 332 | printf("\t%s\n", buffer_client); |
---|
| 333 | /* write in the jabber service */ |
---|
| 334 | if ( !strstr(buffer_jabber, "<proceed xmlns='urn:ietf:params:xml:ns:xmpp-tls'/>") ) |
---|
| 335 | write(jabber_fd, buffer_client, strlen(buffer_client)); |
---|
| 336 | } |
---|
| 337 | if ( strstr(buffer_jabber, "<proceed xmlns='urn:ietf:params:xml:ns:xmpp-tls'/>") ) |
---|
| 338 | { |
---|
| 339 | fcntl(jabber_fd, F_SETFL, fcntl(jabber_fd, F_GETFL, 0) | ~O_NDELAY); |
---|
| 340 | //starttls(&jabber_fd, &client->fd); |
---|
| 341 | int err; |
---|
| 342 | |
---|
| 343 | SSL_CTX * ctx; |
---|
| 344 | SSL * jabberssl; |
---|
| 345 | |
---|
| 346 | //OpenSSL_add_all_algorithms(); |
---|
| 347 | |
---|
| 348 | SSL_library_init(); |
---|
| 349 | SSL_load_error_strings(); |
---|
| 350 | |
---|
| 351 | if ( !(ctx = SSL_CTX_new(TLSv1_server_method())) ) |
---|
| 352 | { |
---|
| 353 | printf("Error creating the context.\n"); |
---|
| 354 | exit(0); |
---|
| 355 | } |
---|
| 356 | |
---|
| 357 | SSL_CTX_set_verify(ctx,SSL_VERIFY_NONE,NULL); |
---|
| 358 | |
---|
| 359 | jabberssl = SSL_new(ctx); |
---|
| 360 | |
---|
| 361 | puts("#1"); |
---|
| 362 | err=SSL_set_fd(jabberssl, jabber_fd); |
---|
| 363 | if ( err < 1 ) |
---|
| 364 | { |
---|
| 365 | puts("shsfghdfgh"); |
---|
| 366 | SSL_CTX_free(ctx); |
---|
| 367 | } |
---|
| 368 | |
---|
| 369 | puts("connect"); |
---|
| 370 | err = SSL_connect(jabberssl); |
---|
| 371 | if ( err < 1 ) |
---|
| 372 | { |
---|
| 373 | puts("client"); |
---|
| 374 | err = SSL_get_error(jabberssl, err); |
---|
| 375 | printf("%d\n", err); |
---|
| 376 | char err_str[1024]; |
---|
| 377 | ERR_error_string_n(ERR_get_error(), err_str, sizeof(err_str)); |
---|
| 378 | printf("%s\n", err_str); |
---|
| 379 | SSL_CTX_free(ctx); |
---|
| 380 | } |
---|
| 381 | } |
---|
| 382 | |
---|
| 383 | if ( jabber_is_connected == 0 ) |
---|
| 384 | client_is_connected = jabber_is_connected; |
---|
| 385 | |
---|
| 386 | puts("end loop"); |
---|
| 387 | usleep(500000); |
---|
| 388 | } |
---|
| 389 | |
---|
| 390 | if ( close(jabber_fd) == __SOCKET_ERROR__ ) |
---|
| 391 | { |
---|
| 392 | printf("\nCould not close jabber socket\n"); |
---|
| 393 | return 0; |
---|
| 394 | } |
---|
| 395 | /*---------------------------------------------------*/ |
---|
| 396 | if ( close(client->fd) == __SOCKET_ERROR__ ) |
---|
| 397 | { |
---|
| 398 | printf("\nCould not close socket\n"); |
---|
| 399 | return 0; |
---|
| 400 | } |
---|
| 401 | |
---|
| 402 | fflush(stdin); |
---|
| 403 | fflush(stdout); |
---|
| 404 | free(client); |
---|
| 405 | pthread_exit(NULL); |
---|
| 406 | } |
---|