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| 1 | /*
|
|---|---|
| 2 | * LibSylph -- E-Mail client library |
| 3 | * Copyright (C) 1999-2006 Hiroyuki Yamamoto |
| 4 | * |
| 5 | * This library is free software; you can redistribute it and/or |
| 6 | * modify it under the terms of the GNU Lesser General Public |
| 7 | * License as published by the Free Software Foundation; either |
| 8 | * version 2.1 of the License, or (at your option) any later version. |
| 9 | * |
| 10 | * This library is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 13 | * Lesser General Public License for more details. |
| 14 | * |
| 15 | * You should have received a copy of the GNU Lesser General Public |
| 16 | * License along with this library; if not, write to the Free Software |
| 17 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| 18 | */ |
| 19 | |
| 20 | #ifdef HAVE_CONFIG_H
|
| 21 | # include "config.h" |
| 22 | #endif
|
| 23 | |
| 24 | #include "defs.h" |
| 25 | |
| 26 | #include <glib.h> |
| 27 | |
| 28 | #include <stdio.h> |
| 29 | #include <stdlib.h> |
| 30 | #include <string.h> |
| 31 | #include <unistd.h> |
| 32 | #include <time.h> |
| 33 | #include <errno.h> |
| 34 | |
| 35 | #include "session.h" |
| 36 | #include "utils.h" |
| 37 | |
| 38 | static gint session_connect_cb (SockInfo *sock,
|
| 39 | gpointer data); |
| 40 | static gint session_close (Session *session);
|
| 41 | |
| 42 | static gboolean session_timeout_cb (gpointer data);
|
| 43 | |
| 44 | #ifdef G_OS_WIN32
|
| 45 | static gboolean session_ping_cb (gpointer data);
|
| 46 | #endif
|
| 47 | |
| 48 | static gboolean session_recv_msg_idle_cb (gpointer data);
|
| 49 | static gboolean session_recv_data_idle_cb (gpointer data);
|
| 50 | |
| 51 | static gboolean session_recv_data_as_file_idle_cb (gpointer data);
|
| 52 | |
| 53 | static gboolean session_read_msg_cb (SockInfo *source,
|
| 54 | GIOCondition condition, |
| 55 | gpointer data); |
| 56 | static gboolean session_read_data_cb (SockInfo *source,
|
| 57 | GIOCondition condition, |
| 58 | gpointer data); |
| 59 | |
| 60 | static gboolean session_read_data_as_file_cb (SockInfo *source,
|
| 61 | GIOCondition condition, |
| 62 | gpointer data); |
| 63 | |
| 64 | static gboolean session_write_msg_cb (SockInfo *source,
|
| 65 | GIOCondition condition, |
| 66 | gpointer data); |
| 67 | static gboolean session_write_data_cb (SockInfo *source,
|
| 68 | GIOCondition condition, |
| 69 | gpointer data); |
| 70 | |
| 71 | |
| 72 | void session_init(Session *session)
|
| 73 | {
|
| 74 | session->type = SESSION_UNKNOWN; |
| 75 | session->sock = NULL;
|
| 76 | session->server = NULL;
|
| 77 | session->port = 0;
|
| 78 | #if USE_SSL
|
| 79 | session->ssl_type = SSL_NONE; |
| 80 | #endif
|
| 81 | session->nonblocking = TRUE; |
| 82 | session->state = SESSION_READY; |
| 83 | session->last_access_time = time(NULL);
|
| 84 | |
| 85 | g_get_current_time(&session->tv_prev); |
| 86 | |
| 87 | session->conn_id = 0;
|
| 88 | |
| 89 | session->io_tag = 0;
|
| 90 | |
| 91 | session->read_buf_p = session->read_buf; |
| 92 | session->read_buf_len = 0;
|
| 93 | |
| 94 | session->read_msg_buf = g_string_sized_new(1024);
|
| 95 | session->read_data_buf = g_byte_array_new(); |
| 96 | session->read_data_terminator = NULL;
|
| 97 | |
| 98 | session->read_data_fp = NULL;
|
| 99 | session->read_data_pos = 0;
|
| 100 | |
| 101 | session->preread_len = 0;
|
| 102 | |
| 103 | session->write_buf = NULL;
|
| 104 | session->write_buf_p = NULL;
|
| 105 | session->write_buf_len = 0;
|
| 106 | |
| 107 | session->write_data_fp = NULL;
|
| 108 | session->write_data_pos = 0;
|
| 109 | session->write_data_len = 0;
|
| 110 | |
| 111 | session->timeout_tag = 0;
|
| 112 | session->timeout_interval = 0;
|
| 113 | |
| 114 | session->ping_tag = 0;
|
| 115 | |
| 116 | session->data = NULL;
|
| 117 | } |
| 118 | |
| 119 | gint session_connect(Session *session, const gchar *server, gushort port)
|
| 120 | {
|
| 121 | #ifdef G_OS_UNIX
|
| 122 | session->server = g_strdup(server); |
| 123 | session->port = port; |
| 124 | |
| 125 | session->conn_id = sock_connect_async(server, port, session_connect_cb, |
| 126 | session); |
| 127 | if (session->conn_id < 0) { |
| 128 | g_warning("can't connect to server.");
|
| 129 | session_close(session); |
| 130 | return -1; |
| 131 | } |
| 132 | |
| 133 | return 0; |
| 134 | #else
|
| 135 | SockInfo *sock; |
| 136 | |
| 137 | session->server = g_strdup(server); |
| 138 | session->port = port; |
| 139 | |
| 140 | sock = sock_connect(server, port); |
| 141 | if (sock == NULL) { |
| 142 | g_warning("can't connect to server.");
|
| 143 | session_close(session); |
| 144 | return -1; |
| 145 | } |
| 146 | |
| 147 | return session_connect_cb(sock, session);
|
| 148 | #endif
|
| 149 | } |
| 150 | |
| 151 | static gint session_connect_cb(SockInfo *sock, gpointer data)
|
| 152 | {
|
| 153 | Session *session = SESSION(data); |
| 154 | |
| 155 | session->conn_id = 0;
|
| 156 | |
| 157 | if (!sock) {
|
| 158 | g_warning("can't connect to server.");
|
| 159 | session->state = SESSION_ERROR; |
| 160 | return -1; |
| 161 | } |
| 162 | |
| 163 | session->sock = sock; |
| 164 | |
| 165 | #if USE_SSL
|
| 166 | if (session->ssl_type == SSL_TUNNEL) {
|
| 167 | sock_set_nonblocking_mode(sock, FALSE); |
| 168 | if (!ssl_init_socket(sock)) {
|
| 169 | g_warning("can't initialize SSL.");
|
| 170 | session->state = SESSION_ERROR; |
| 171 | return -1; |
| 172 | } |
| 173 | } |
| 174 | #endif
|
| 175 | |
| 176 | debug_print("session (%p): connected\n", session);
|
| 177 | |
| 178 | sock_set_nonblocking_mode(sock, session->nonblocking); |
| 179 | |
| 180 | session->state = SESSION_RECV; |
| 181 | session->io_tag = sock_add_watch(session->sock, G_IO_IN, |
| 182 | session_read_msg_cb, |
| 183 | session); |
| 184 | |
| 185 | #ifdef G_OS_WIN32
|
| 186 | session->ping_tag = g_timeout_add(1000, session_ping_cb, session);
|
| 187 | #endif
|
| 188 | |
| 189 | return 0; |
| 190 | } |
| 191 | |
| 192 | gint session_disconnect(Session *session) |
| 193 | {
|
| 194 | session_close(session); |
| 195 | return 0; |
| 196 | } |
| 197 | |
| 198 | void session_destroy(Session *session)
|
| 199 | {
|
| 200 | g_return_if_fail(session != NULL);
|
| 201 | g_return_if_fail(session->destroy != NULL);
|
| 202 | |
| 203 | session_close(session); |
| 204 | session->destroy(session); |
| 205 | g_free(session->server); |
| 206 | g_string_free(session->read_msg_buf, TRUE); |
| 207 | g_byte_array_free(session->read_data_buf, TRUE); |
| 208 | g_free(session->read_data_terminator); |
| 209 | if (session->read_data_fp)
|
| 210 | fclose(session->read_data_fp); |
| 211 | g_free(session->write_buf); |
| 212 | |
| 213 | debug_print("session (%p): destroyed\n", session);
|
| 214 | |
| 215 | g_free(session); |
| 216 | } |
| 217 | |
| 218 | gboolean session_is_connected(Session *session) |
| 219 | {
|
| 220 | return (session->state == SESSION_READY ||
|
| 221 | session->state == SESSION_SEND || |
| 222 | session->state == SESSION_RECV); |
| 223 | } |
| 224 | |
| 225 | void session_set_access_time(Session *session)
|
| 226 | {
|
| 227 | session->last_access_time = time(NULL);
|
| 228 | } |
| 229 | |
| 230 | void session_set_timeout(Session *session, guint interval)
|
| 231 | {
|
| 232 | if (session->timeout_tag > 0) |
| 233 | g_source_remove(session->timeout_tag); |
| 234 | |
| 235 | session->timeout_interval = interval; |
| 236 | if (interval > 0) |
| 237 | session->timeout_tag = |
| 238 | g_timeout_add(interval, session_timeout_cb, session); |
| 239 | else
|
| 240 | session->timeout_tag = 0;
|
| 241 | } |
| 242 | |
| 243 | static gboolean session_timeout_cb(gpointer data)
|
| 244 | {
|
| 245 | Session *session = SESSION(data); |
| 246 | |
| 247 | g_warning("session timeout.\n");
|
| 248 | |
| 249 | if (session->io_tag > 0) { |
| 250 | g_source_remove(session->io_tag); |
| 251 | session->io_tag = 0;
|
| 252 | } |
| 253 | |
| 254 | session->timeout_tag = 0;
|
| 255 | session->state = SESSION_TIMEOUT; |
| 256 | |
| 257 | return FALSE;
|
| 258 | } |
| 259 | |
| 260 | #ifdef G_OS_WIN32
|
| 261 | /* hack for state machine freeze problem in GLib >= 2.8.x */
|
| 262 | static gboolean session_ping_cb(gpointer data)
|
| 263 | {
|
| 264 | Session *session = SESSION(data); |
| 265 | SockInfo *sock = session->sock; |
| 266 | |
| 267 | if (session->io_tag > 0 && sock && sock->callback) { |
| 268 | GTimeVal tv_cur, tv_result; |
| 269 | |
| 270 | g_get_current_time(&tv_cur); |
| 271 | tv_result.tv_sec = tv_cur.tv_sec - session->tv_prev.tv_sec; |
| 272 | tv_result.tv_usec = tv_cur.tv_usec - session->tv_prev.tv_usec; |
| 273 | if (tv_result.tv_usec < 0) { |
| 274 | tv_result.tv_sec--; |
| 275 | tv_result.tv_usec += G_USEC_PER_SEC; |
| 276 | } |
| 277 | if (tv_result.tv_sec * G_USEC_PER_SEC + tv_result.tv_usec >
|
| 278 | G_USEC_PER_SEC) {
|
| 279 | debug_print("state machine freeze for 1 second detected, forcing dispatch.\n");
|
| 280 | sock->callback(sock, sock->condition, sock->data); |
| 281 | } |
| 282 | } |
| 283 | |
| 284 | return TRUE;
|
| 285 | } |
| 286 | #endif
|
| 287 | |
| 288 | void session_set_recv_message_notify(Session *session,
|
| 289 | RecvMsgNotify notify_func, gpointer data) |
| 290 | {
|
| 291 | session->recv_msg_notify = notify_func; |
| 292 | session->recv_msg_notify_data = data; |
| 293 | } |
| 294 | |
| 295 | void session_set_recv_data_progressive_notify
|
| 296 | (Session *session, |
| 297 | RecvDataProgressiveNotify notify_func, |
| 298 | gpointer data) |
| 299 | {
|
| 300 | session->recv_data_progressive_notify = notify_func, |
| 301 | session->recv_data_progressive_notify_data = data; |
| 302 | } |
| 303 | |
| 304 | void session_set_recv_data_notify(Session *session, RecvDataNotify notify_func,
|
| 305 | gpointer data) |
| 306 | {
|
| 307 | session->recv_data_notify = notify_func; |
| 308 | session->recv_data_notify_data = data; |
| 309 | } |
| 310 | |
| 311 | void session_set_send_data_progressive_notify
|
| 312 | (Session *session, |
| 313 | SendDataProgressiveNotify notify_func, |
| 314 | gpointer data) |
| 315 | {
|
| 316 | session->send_data_progressive_notify = notify_func; |
| 317 | session->send_data_progressive_notify_data = data; |
| 318 | } |
| 319 | |
| 320 | void session_set_send_data_notify(Session *session, SendDataNotify notify_func,
|
| 321 | gpointer data) |
| 322 | {
|
| 323 | session->send_data_notify = notify_func; |
| 324 | session->send_data_notify_data = data; |
| 325 | } |
| 326 | |
| 327 | static gint session_close(Session *session)
|
| 328 | {
|
| 329 | g_return_val_if_fail(session != NULL, -1); |
| 330 | |
| 331 | #ifdef G_OS_UNIX
|
| 332 | if (session->conn_id > 0) { |
| 333 | sock_connect_async_cancel(session->conn_id); |
| 334 | session->conn_id = 0;
|
| 335 | debug_print("session (%p): connection cancelled\n", session);
|
| 336 | } |
| 337 | #endif
|
| 338 | |
| 339 | session_set_timeout(session, 0);
|
| 340 | |
| 341 | #ifdef G_OS_WIN32
|
| 342 | if (session->ping_tag > 0) { |
| 343 | g_source_remove(session->ping_tag); |
| 344 | session->ping_tag = 0;
|
| 345 | } |
| 346 | #endif
|
| 347 | |
| 348 | if (session->io_tag > 0) { |
| 349 | g_source_remove(session->io_tag); |
| 350 | session->io_tag = 0;
|
| 351 | } |
| 352 | |
| 353 | if (session->sock) {
|
| 354 | sock_close(session->sock); |
| 355 | session->sock = NULL;
|
| 356 | session->state = SESSION_DISCONNECTED; |
| 357 | debug_print("session (%p): closed\n", session);
|
| 358 | } |
| 359 | |
| 360 | return 0; |
| 361 | } |
| 362 | |
| 363 | #if USE_SSL
|
| 364 | gint session_start_tls(Session *session) |
| 365 | {
|
| 366 | gboolean nb_mode; |
| 367 | |
| 368 | nb_mode = sock_is_nonblocking_mode(session->sock); |
| 369 | |
| 370 | sock_set_nonblocking_mode(session->sock, FALSE); |
| 371 | |
| 372 | if (!ssl_init_socket_with_method(session->sock, SSL_METHOD_TLSv1)) {
|
| 373 | g_warning("can't start TLS session.\n");
|
| 374 | if (nb_mode)
|
| 375 | sock_set_nonblocking_mode(session->sock, TRUE); |
| 376 | return -1; |
| 377 | } |
| 378 | |
| 379 | sock_set_nonblocking_mode(session->sock, session->nonblocking); |
| 380 | |
| 381 | return 0; |
| 382 | } |
| 383 | #endif
|
| 384 | |
| 385 | gint session_send_msg(Session *session, SessionMsgType type, const gchar *msg)
|
| 386 | {
|
| 387 | gboolean ret; |
| 388 | |
| 389 | g_return_val_if_fail(session->write_buf == NULL, -1); |
| 390 | g_return_val_if_fail(msg != NULL, -1); |
| 391 | g_return_val_if_fail(msg[0] != '\0', -1); |
| 392 | |
| 393 | session->state = SESSION_SEND; |
| 394 | session->write_buf = g_strconcat(msg, "\r\n", NULL); |
| 395 | session->write_buf_p = session->write_buf; |
| 396 | session->write_buf_len = strlen(msg) + 2;
|
| 397 | |
| 398 | ret = session_write_msg_cb(session->sock, G_IO_OUT, session); |
| 399 | |
| 400 | if (ret == TRUE)
|
| 401 | session->io_tag = sock_add_watch(session->sock, G_IO_OUT, |
| 402 | session_write_msg_cb, session); |
| 403 | else if (session->state == SESSION_ERROR) |
| 404 | return -1; |
| 405 | |
| 406 | return 0; |
| 407 | } |
| 408 | |
| 409 | gint session_recv_msg(Session *session) |
| 410 | {
|
| 411 | g_return_val_if_fail(session->read_msg_buf->len == 0, -1); |
| 412 | |
| 413 | session->state = SESSION_RECV; |
| 414 | |
| 415 | if (session->read_buf_len > 0) |
| 416 | g_idle_add(session_recv_msg_idle_cb, session); |
| 417 | else
|
| 418 | session->io_tag = sock_add_watch(session->sock, G_IO_IN, |
| 419 | session_read_msg_cb, session); |
| 420 | |
| 421 | return 0; |
| 422 | } |
| 423 | |
| 424 | static gboolean session_recv_msg_idle_cb(gpointer data)
|
| 425 | {
|
| 426 | Session *session = SESSION(data); |
| 427 | gboolean ret; |
| 428 | |
| 429 | ret = session_read_msg_cb(session->sock, G_IO_IN, session); |
| 430 | |
| 431 | if (ret == TRUE)
|
| 432 | session->io_tag = sock_add_watch(session->sock, G_IO_IN, |
| 433 | session_read_msg_cb, session); |
| 434 | |
| 435 | return FALSE;
|
| 436 | } |
| 437 | |
| 438 | gint session_send_data(Session *session, FILE *data_fp, guint size) |
| 439 | {
|
| 440 | gboolean ret; |
| 441 | |
| 442 | g_return_val_if_fail(session->write_data_fp == NULL, -1); |
| 443 | g_return_val_if_fail(data_fp != NULL, -1); |
| 444 | g_return_val_if_fail(size != 0, -1); |
| 445 | |
| 446 | session->state = SESSION_SEND; |
| 447 | |
| 448 | session->write_data_fp = data_fp; |
| 449 | session->write_data_pos = 0;
|
| 450 | session->write_data_len = size; |
| 451 | g_get_current_time(&session->tv_prev); |
| 452 | |
| 453 | ret = session_write_data_cb(session->sock, G_IO_OUT, session); |
| 454 | |
| 455 | if (ret == TRUE)
|
| 456 | session->io_tag = sock_add_watch(session->sock, G_IO_OUT, |
| 457 | session_write_data_cb, |
| 458 | session); |
| 459 | else if (session->state == SESSION_ERROR) |
| 460 | return -1; |
| 461 | |
| 462 | return 0; |
| 463 | } |
| 464 | |
| 465 | gint session_recv_data(Session *session, guint size, const gchar *terminator)
|
| 466 | {
|
| 467 | g_return_val_if_fail(session->read_data_buf->len == 0, -1); |
| 468 | |
| 469 | session->state = SESSION_RECV; |
| 470 | |
| 471 | g_free(session->read_data_terminator); |
| 472 | session->read_data_terminator = g_strdup(terminator); |
| 473 | g_get_current_time(&session->tv_prev); |
| 474 | |
| 475 | if (session->read_buf_len > 0) |
| 476 | g_idle_add(session_recv_data_idle_cb, session); |
| 477 | else
|
| 478 | session->io_tag = sock_add_watch(session->sock, G_IO_IN, |
| 479 | session_read_data_cb, session); |
| 480 | |
| 481 | return 0; |
| 482 | } |
| 483 | |
| 484 | static gboolean session_recv_data_idle_cb(gpointer data)
|
| 485 | {
|
| 486 | Session *session = SESSION(data); |
| 487 | gboolean ret; |
| 488 | |
| 489 | ret = session_read_data_cb(session->sock, G_IO_IN, session); |
| 490 | |
| 491 | if (ret == TRUE)
|
| 492 | session->io_tag = sock_add_watch(session->sock, G_IO_IN, |
| 493 | session_read_data_cb, session); |
| 494 | |
| 495 | return FALSE;
|
| 496 | } |
| 497 | |
| 498 | gint session_recv_data_as_file(Session *session, guint size, |
| 499 | const gchar *terminator)
|
| 500 | {
|
| 501 | g_return_val_if_fail(session->read_data_pos == 0, -1); |
| 502 | g_return_val_if_fail(session->read_data_fp == NULL, -1); |
| 503 | |
| 504 | session->state = SESSION_RECV; |
| 505 | |
| 506 | g_free(session->read_data_terminator); |
| 507 | session->read_data_terminator = g_strdup(terminator); |
| 508 | g_get_current_time(&session->tv_prev); |
| 509 | |
| 510 | session->read_data_fp = my_tmpfile(); |
| 511 | if (!session->read_data_fp) {
|
| 512 | FILE_OP_ERROR("session_recv_data_as_file", "my_tmpfile"); |
| 513 | return -1; |
| 514 | } |
| 515 | |
| 516 | if (session->read_buf_len > 0) |
| 517 | g_idle_add(session_recv_data_as_file_idle_cb, session); |
| 518 | else
|
| 519 | session->io_tag = sock_add_watch(session->sock, G_IO_IN, |
| 520 | session_read_data_as_file_cb, |
| 521 | session); |
| 522 | |
| 523 | return 0; |
| 524 | } |
| 525 | |
| 526 | static gboolean session_recv_data_as_file_idle_cb(gpointer data)
|
| 527 | {
|
| 528 | Session *session = SESSION(data); |
| 529 | gboolean ret; |
| 530 | |
| 531 | ret = session_read_data_as_file_cb(session->sock, G_IO_IN, session); |
| 532 | |
| 533 | if (ret == TRUE)
|
| 534 | session->io_tag = sock_add_watch(session->sock, G_IO_IN, |
| 535 | session_read_data_as_file_cb, |
| 536 | session); |
| 537 | |
| 538 | return FALSE;
|
| 539 | } |
| 540 | |
| 541 | static gboolean session_read_msg_cb(SockInfo *source, GIOCondition condition,
|
| 542 | gpointer data) |
| 543 | {
|
| 544 | Session *session = SESSION(data); |
| 545 | gchar buf[SESSION_BUFFSIZE]; |
| 546 | gint line_len; |
| 547 | gchar *newline; |
| 548 | gchar *msg; |
| 549 | gint ret; |
| 550 | |
| 551 | g_return_val_if_fail(condition == G_IO_IN, FALSE); |
| 552 | |
| 553 | session_set_timeout(session, session->timeout_interval); |
| 554 | |
| 555 | if (session->read_buf_len == 0) { |
| 556 | gint read_len; |
| 557 | |
| 558 | read_len = sock_read(session->sock, session->read_buf, |
| 559 | SESSION_BUFFSIZE - 1);
|
| 560 | |
| 561 | if (read_len == 0) { |
| 562 | g_warning("sock_read: received EOF\n");
|
| 563 | session->state = SESSION_EOF; |
| 564 | return FALSE;
|
| 565 | } |
| 566 | |
| 567 | if (read_len < 0) { |
| 568 | switch (errno) {
|
| 569 | case EAGAIN:
|
| 570 | return TRUE;
|
| 571 | default:
|
| 572 | g_warning("%s: sock_read: %s\n", G_STRFUNC, g_strerror(errno));
|
| 573 | session->state = SESSION_ERROR; |
| 574 | return FALSE;
|
| 575 | } |
| 576 | } |
| 577 | |
| 578 | session->read_buf_len = read_len; |
| 579 | } |
| 580 | |
| 581 | if ((newline = memchr(session->read_buf_p, '\n', session->read_buf_len)) |
| 582 | != NULL)
|
| 583 | line_len = newline - session->read_buf_p + 1;
|
| 584 | else
|
| 585 | line_len = session->read_buf_len; |
| 586 | |
| 587 | if (line_len == 0) |
| 588 | return TRUE;
|
| 589 | |
| 590 | memcpy(buf, session->read_buf_p, line_len); |
| 591 | buf[line_len] = '\0';
|
| 592 | |
| 593 | g_string_append(session->read_msg_buf, buf); |
| 594 | |
| 595 | session->read_buf_len -= line_len; |
| 596 | if (session->read_buf_len == 0) |
| 597 | session->read_buf_p = session->read_buf; |
| 598 | else
|
| 599 | session->read_buf_p += line_len; |
| 600 | |
| 601 | /* incomplete read */
|
| 602 | if (buf[line_len - 1] != '\n') |
| 603 | return TRUE;
|
| 604 | |
| 605 | /* complete */
|
| 606 | if (session->io_tag > 0) { |
| 607 | g_source_remove(session->io_tag); |
| 608 | session->io_tag = 0;
|
| 609 | } |
| 610 | |
| 611 | /* callback */
|
| 612 | msg = g_strdup(session->read_msg_buf->str); |
| 613 | strretchomp(msg); |
| 614 | g_string_truncate(session->read_msg_buf, 0);
|
| 615 | |
| 616 | ret = session->recv_msg(session, msg); |
| 617 | session->recv_msg_notify(session, msg, session->recv_msg_notify_data); |
| 618 | |
| 619 | g_free(msg); |
| 620 | |
| 621 | if (ret < 0) |
| 622 | session->state = SESSION_ERROR; |
| 623 | |
| 624 | return FALSE;
|
| 625 | } |
| 626 | |
| 627 | static gboolean session_read_data_cb(SockInfo *source, GIOCondition condition,
|
| 628 | gpointer data) |
| 629 | {
|
| 630 | Session *session = SESSION(data); |
| 631 | GByteArray *data_buf; |
| 632 | gint terminator_len; |
| 633 | gboolean complete = FALSE; |
| 634 | guint data_len; |
| 635 | gint ret; |
| 636 | |
| 637 | g_return_val_if_fail(condition == G_IO_IN, FALSE); |
| 638 | |
| 639 | session_set_timeout(session, session->timeout_interval); |
| 640 | |
| 641 | if (session->read_buf_len == 0) { |
| 642 | gint read_len; |
| 643 | |
| 644 | read_len = sock_read(session->sock, session->read_buf, |
| 645 | SESSION_BUFFSIZE); |
| 646 | |
| 647 | if (read_len == 0) { |
| 648 | g_warning("sock_read: received EOF\n");
|
| 649 | session->state = SESSION_EOF; |
| 650 | return FALSE;
|
| 651 | } |
| 652 | |
| 653 | if (read_len < 0) { |
| 654 | switch (errno) {
|
| 655 | case EAGAIN:
|
| 656 | return TRUE;
|
| 657 | default:
|
| 658 | g_warning("%s: sock_read: %s\n", G_STRFUNC, g_strerror(errno));
|
| 659 | session->state = SESSION_ERROR; |
| 660 | return FALSE;
|
| 661 | } |
| 662 | } |
| 663 | |
| 664 | session->read_buf_len = read_len; |
| 665 | } |
| 666 | |
| 667 | data_buf = session->read_data_buf; |
| 668 | terminator_len = strlen(session->read_data_terminator); |
| 669 | |
| 670 | if (session->read_buf_len == 0) |
| 671 | return TRUE;
|
| 672 | |
| 673 | g_byte_array_append(data_buf, (guchar *)session->read_buf_p, |
| 674 | session->read_buf_len); |
| 675 | |
| 676 | session->read_buf_len = 0;
|
| 677 | session->read_buf_p = session->read_buf; |
| 678 | |
| 679 | /* check if data is terminated */
|
| 680 | if (data_buf->len >= terminator_len) {
|
| 681 | if (memcmp(data_buf->data, session->read_data_terminator,
|
| 682 | terminator_len) == 0)
|
| 683 | complete = TRUE; |
| 684 | else if (data_buf->len >= terminator_len + 2 && |
| 685 | memcmp(data_buf->data + data_buf->len - |
| 686 | (terminator_len + 2), "\r\n", 2) == 0 && |
| 687 | memcmp(data_buf->data + data_buf->len - |
| 688 | terminator_len, session->read_data_terminator, |
| 689 | terminator_len) == 0)
|
| 690 | complete = TRUE; |
| 691 | } |
| 692 | |
| 693 | /* incomplete read */
|
| 694 | if (!complete) {
|
| 695 | GTimeVal tv_cur; |
| 696 | |
| 697 | g_get_current_time(&tv_cur); |
| 698 | if (tv_cur.tv_sec - session->tv_prev.tv_sec > 0 || |
| 699 | tv_cur.tv_usec - session->tv_prev.tv_usec > |
| 700 | UI_REFRESH_INTERVAL) {
|
| 701 | session->recv_data_progressive_notify |
| 702 | (session, data_buf->len, 0,
|
| 703 | session->recv_data_progressive_notify_data); |
| 704 | g_get_current_time(&session->tv_prev); |
| 705 | } |
| 706 | return TRUE;
|
| 707 | } |
| 708 | |
| 709 | /* complete */
|
| 710 | if (session->io_tag > 0) { |
| 711 | g_source_remove(session->io_tag); |
| 712 | session->io_tag = 0;
|
| 713 | } |
| 714 | |
| 715 | data_len = data_buf->len - terminator_len; |
| 716 | |
| 717 | /* callback */
|
| 718 | ret = session->recv_data_finished(session, (guchar *)data_buf->data, |
| 719 | data_len); |
| 720 | |
| 721 | g_byte_array_set_size(data_buf, 0);
|
| 722 | |
| 723 | session->recv_data_notify(session, data_len, |
| 724 | session->recv_data_notify_data); |
| 725 | |
| 726 | if (ret < 0) |
| 727 | session->state = SESSION_ERROR; |
| 728 | |
| 729 | return FALSE;
|
| 730 | } |
| 731 | |
| 732 | #define READ_BUF_LEFT() \
|
| 733 | (SESSION_BUFFSIZE - (session->read_buf_p - session->read_buf) - \ |
| 734 | session->read_buf_len) |
| 735 | #define PREREAD_SIZE 8 |
| 736 | |
| 737 | static gboolean session_read_data_as_file_cb(SockInfo *source,
|
| 738 | GIOCondition condition, |
| 739 | gpointer data) |
| 740 | {
|
| 741 | Session *session = SESSION(data); |
| 742 | gint terminator_len; |
| 743 | gchar *data_begin_p; |
| 744 | gint buf_data_len; |
| 745 | gboolean complete = FALSE; |
| 746 | gint read_len; |
| 747 | gint write_len; |
| 748 | gint ret; |
| 749 | |
| 750 | g_return_val_if_fail(condition == G_IO_IN, FALSE); |
| 751 | |
| 752 | session_set_timeout(session, session->timeout_interval); |
| 753 | |
| 754 | if (session->read_buf_len == 0) { |
| 755 | read_len = sock_read(session->sock, session->read_buf_p, |
| 756 | READ_BUF_LEFT()); |
| 757 | |
| 758 | if (read_len == 0) { |
| 759 | g_warning("sock_read: received EOF\n");
|
| 760 | session->state = SESSION_EOF; |
| 761 | return FALSE;
|
| 762 | } |
| 763 | |
| 764 | if (read_len < 0) { |
| 765 | switch (errno) {
|
| 766 | case EAGAIN:
|
| 767 | return TRUE;
|
| 768 | default:
|
| 769 | g_warning("%s: sock_read: %s\n", G_STRFUNC, g_strerror(errno));
|
| 770 | session->state = SESSION_ERROR; |
| 771 | return FALSE;
|
| 772 | } |
| 773 | } |
| 774 | |
| 775 | session->read_buf_len = read_len; |
| 776 | } |
| 777 | |
| 778 | terminator_len = strlen(session->read_data_terminator); |
| 779 | |
| 780 | if (session->read_buf_len == 0) |
| 781 | return TRUE;
|
| 782 | |
| 783 | /* +---------------buf_data_len---------------+
|
| 784 | * +--preread_len--+-------read_buf_len-------+ |
| 785 | * +---------------+--------------------------+-------------------+ * |
| 786 | * ^data_begin_p ^read_buf_p |
| 787 | * ^read_buf |
| 788 | */ |
| 789 | |
| 790 | data_begin_p = session->read_buf_p - session->preread_len; |
| 791 | buf_data_len = session->preread_len + session->read_buf_len; |
| 792 | |
| 793 | /* check if data is terminated */
|
| 794 | if (buf_data_len >= terminator_len) {
|
| 795 | if (session->read_data_pos == 0 && |
| 796 | buf_data_len == terminator_len && |
| 797 | memcmp(data_begin_p, session->read_data_terminator, |
| 798 | terminator_len) == 0)
|
| 799 | complete = TRUE; |
| 800 | else if (buf_data_len >= terminator_len + 2 && |
| 801 | memcmp(data_begin_p + buf_data_len - |
| 802 | (terminator_len + 2), "\r\n", 2) == 0 && |
| 803 | memcmp(data_begin_p + buf_data_len - |
| 804 | terminator_len, session->read_data_terminator, |
| 805 | terminator_len) == 0)
|
| 806 | complete = TRUE; |
| 807 | } |
| 808 | |
| 809 | /* incomplete read */
|
| 810 | if (!complete) {
|
| 811 | GTimeVal tv_cur; |
| 812 | |
| 813 | if (buf_data_len <= PREREAD_SIZE) {
|
| 814 | if (data_begin_p > session->read_buf) {
|
| 815 | g_memmove(session->read_buf, data_begin_p, |
| 816 | buf_data_len); |
| 817 | data_begin_p = session->read_buf; |
| 818 | session->read_buf_p = session->read_buf + |
| 819 | session->preread_len; |
| 820 | } |
| 821 | session->read_buf_p += session->read_buf_len; |
| 822 | session->preread_len = buf_data_len; |
| 823 | session->read_buf_len = 0;
|
| 824 | return TRUE;
|
| 825 | } |
| 826 | |
| 827 | if (READ_BUF_LEFT() >= (SESSION_BUFFSIZE / 2)) { |
| 828 | session->read_buf_p += session->read_buf_len; |
| 829 | session->preread_len = buf_data_len; |
| 830 | session->read_buf_len = 0;
|
| 831 | return TRUE;
|
| 832 | } |
| 833 | |
| 834 | write_len = buf_data_len - PREREAD_SIZE; |
| 835 | if (fwrite(data_begin_p, write_len, 1, |
| 836 | session->read_data_fp) < 1) {
|
| 837 | g_warning("session_read_data_as_file_cb: "
|
| 838 | "writing data to file failed\n");
|
| 839 | session->state = SESSION_ERROR; |
| 840 | return FALSE;
|
| 841 | } |
| 842 | session->read_data_pos += write_len; |
| 843 | |
| 844 | g_memmove(session->read_buf, data_begin_p + write_len, |
| 845 | PREREAD_SIZE); |
| 846 | session->read_buf_p = session->read_buf + PREREAD_SIZE; |
| 847 | session->preread_len = PREREAD_SIZE; |
| 848 | session->read_buf_len = 0;
|
| 849 | |
| 850 | g_get_current_time(&tv_cur); |
| 851 | if (tv_cur.tv_sec - session->tv_prev.tv_sec > 0 || |
| 852 | tv_cur.tv_usec - session->tv_prev.tv_usec > |
| 853 | UI_REFRESH_INTERVAL) {
|
| 854 | session->recv_data_progressive_notify |
| 855 | (session, session->read_data_pos, 0,
|
| 856 | session->recv_data_progressive_notify_data); |
| 857 | g_get_current_time(&session->tv_prev); |
| 858 | } |
| 859 | |
| 860 | return TRUE;
|
| 861 | } |
| 862 | |
| 863 | /* complete */
|
| 864 | if (session->io_tag > 0) { |
| 865 | g_source_remove(session->io_tag); |
| 866 | session->io_tag = 0;
|
| 867 | } |
| 868 | |
| 869 | write_len = buf_data_len - terminator_len; |
| 870 | if (write_len > 0 && fwrite(data_begin_p, write_len, 1, |
| 871 | session->read_data_fp) < 1) {
|
| 872 | g_warning("session_read_data_as_file_cb: "
|
| 873 | "writing data to file failed\n");
|
| 874 | session->state = SESSION_ERROR; |
| 875 | return FALSE;
|
| 876 | } |
| 877 | session->read_data_pos += write_len; |
| 878 | |
| 879 | if (fflush(session->read_data_fp) == EOF) { |
| 880 | perror("fflush");
|
| 881 | g_warning("session_read_data_as_file_cb: "
|
| 882 | "writing data to file failed\n");
|
| 883 | session->state = SESSION_ERROR; |
| 884 | return FALSE;
|
| 885 | } |
| 886 | rewind(session->read_data_fp); |
| 887 | |
| 888 | session->preread_len = 0;
|
| 889 | session->read_buf_len = 0;
|
| 890 | session->read_buf_p = session->read_buf; |
| 891 | |
| 892 | /* callback */
|
| 893 | ret = session->recv_data_as_file_finished |
| 894 | (session, session->read_data_fp, session->read_data_pos); |
| 895 | |
| 896 | fclose(session->read_data_fp); |
| 897 | session->read_data_fp = NULL;
|
| 898 | |
| 899 | session->recv_data_notify(session, session->read_data_pos, |
| 900 | session->recv_data_notify_data); |
| 901 | |
| 902 | session->read_data_pos = 0;
|
| 903 | |
| 904 | if (ret < 0) |
| 905 | session->state = SESSION_ERROR; |
| 906 | |
| 907 | return FALSE;
|
| 908 | } |
| 909 | |
| 910 | static gint session_write_buf(Session *session)
|
| 911 | {
|
| 912 | gint write_len; |
| 913 | gint to_write_len; |
| 914 | |
| 915 | g_return_val_if_fail(session->write_buf != NULL, -1); |
| 916 | g_return_val_if_fail(session->write_buf_p != NULL, -1); |
| 917 | g_return_val_if_fail(session->write_buf_len > 0, -1); |
| 918 | |
| 919 | to_write_len = session->write_buf_len - |
| 920 | (session->write_buf_p - session->write_buf); |
| 921 | to_write_len = MIN(to_write_len, SESSION_BUFFSIZE); |
| 922 | |
| 923 | write_len = sock_write(session->sock, session->write_buf_p, |
| 924 | to_write_len); |
| 925 | |
| 926 | if (write_len < 0) { |
| 927 | switch (errno) {
|
| 928 | case EAGAIN:
|
| 929 | write_len = 0;
|
| 930 | break;
|
| 931 | default:
|
| 932 | g_warning("sock_write: %s\n", g_strerror(errno));
|
| 933 | session->state = SESSION_ERROR; |
| 934 | return -1; |
| 935 | } |
| 936 | } |
| 937 | |
| 938 | /* incomplete write */
|
| 939 | if (session->write_buf_p - session->write_buf + write_len <
|
| 940 | session->write_buf_len) {
|
| 941 | session->write_buf_p += write_len; |
| 942 | return 1; |
| 943 | } |
| 944 | |
| 945 | g_free(session->write_buf); |
| 946 | session->write_buf = NULL;
|
| 947 | session->write_buf_p = NULL;
|
| 948 | session->write_buf_len = 0;
|
| 949 | |
| 950 | return 0; |
| 951 | } |
| 952 | |
| 953 | static gint session_write_data(Session *session)
|
| 954 | {
|
| 955 | gchar buf[SESSION_BUFFSIZE]; |
| 956 | gint write_len; |
| 957 | gint to_write_len; |
| 958 | |
| 959 | g_return_val_if_fail(session->write_data_fp != NULL, -1); |
| 960 | g_return_val_if_fail(session->write_data_pos >= 0, -1); |
| 961 | g_return_val_if_fail(session->write_data_len > 0, -1); |
| 962 | |
| 963 | to_write_len = session->write_data_len - session->write_data_pos; |
| 964 | to_write_len = MIN(to_write_len, SESSION_BUFFSIZE); |
| 965 | if (fread(buf, to_write_len, 1, session->write_data_fp) < 1) { |
| 966 | g_warning("session_write_data: reading data from file failed\n");
|
| 967 | session->state = SESSION_ERROR; |
| 968 | return -1; |
| 969 | } |
| 970 | |
| 971 | write_len = sock_write(session->sock, buf, to_write_len); |
| 972 | |
| 973 | if (write_len < 0) { |
| 974 | switch (errno) {
|
| 975 | case EAGAIN:
|
| 976 | write_len = 0;
|
| 977 | break;
|
| 978 | default:
|
| 979 | g_warning("sock_write: %s\n", g_strerror(errno));
|
| 980 | session->state = SESSION_ERROR; |
| 981 | return -1; |
| 982 | } |
| 983 | } |
| 984 | |
| 985 | /* incomplete write */
|
| 986 | if (session->write_data_pos + write_len < session->write_data_len) {
|
| 987 | session->write_data_pos += write_len; |
| 988 | if (write_len < to_write_len) {
|
| 989 | if (fseek(session->write_data_fp,
|
| 990 | session->write_data_pos, SEEK_SET) < 0) {
|
| 991 | g_warning("session_write_data: file seek failed\n");
|
| 992 | session->state = SESSION_ERROR; |
| 993 | return -1; |
| 994 | } |
| 995 | } |
| 996 | return 1; |
| 997 | } |
| 998 | |
| 999 | session->write_data_fp = NULL;
|
| 1000 | session->write_data_pos = 0;
|
| 1001 | session->write_data_len = 0;
|
| 1002 | |
| 1003 | return 0; |
| 1004 | } |
| 1005 | |
| 1006 | static gboolean session_write_msg_cb(SockInfo *source, GIOCondition condition,
|
| 1007 | gpointer data) |
| 1008 | {
|
| 1009 | Session *session = SESSION(data); |
| 1010 | gint ret; |
| 1011 | |
| 1012 | g_return_val_if_fail(condition == G_IO_OUT, FALSE); |
| 1013 | g_return_val_if_fail(session->write_buf != NULL, FALSE);
|
| 1014 | g_return_val_if_fail(session->write_buf_p != NULL, FALSE);
|
| 1015 | g_return_val_if_fail(session->write_buf_len > 0, FALSE);
|
| 1016 | |
| 1017 | ret = session_write_buf(session); |
| 1018 | |
| 1019 | if (ret < 0) { |
| 1020 | session->state = SESSION_ERROR; |
| 1021 | return FALSE;
|
| 1022 | } else if (ret > 0) |
| 1023 | return TRUE;
|
| 1024 | |
| 1025 | if (session->io_tag > 0) { |
| 1026 | g_source_remove(session->io_tag); |
| 1027 | session->io_tag = 0;
|
| 1028 | } |
| 1029 | |
| 1030 | session_recv_msg(session); |
| 1031 | |
| 1032 | return FALSE;
|
| 1033 | } |
| 1034 | |
| 1035 | static gboolean session_write_data_cb(SockInfo *source,
|
| 1036 | GIOCondition condition, gpointer data) |
| 1037 | {
|
| 1038 | Session *session = SESSION(data); |
| 1039 | guint write_data_len; |
| 1040 | gint ret; |
| 1041 | |
| 1042 | g_return_val_if_fail(condition == G_IO_OUT, FALSE); |
| 1043 | g_return_val_if_fail(session->write_data_fp != NULL, FALSE);
|
| 1044 | g_return_val_if_fail(session->write_data_pos >= 0, FALSE);
|
| 1045 | g_return_val_if_fail(session->write_data_len > 0, FALSE);
|
| 1046 | |
| 1047 | write_data_len = session->write_data_len; |
| 1048 | |
| 1049 | ret = session_write_data(session); |
| 1050 | |
| 1051 | if (ret < 0) { |
| 1052 | session->state = SESSION_ERROR; |
| 1053 | return FALSE;
|
| 1054 | } else if (ret > 0) { |
| 1055 | GTimeVal tv_cur; |
| 1056 | |
| 1057 | g_get_current_time(&tv_cur); |
| 1058 | if (tv_cur.tv_sec - session->tv_prev.tv_sec > 0 || |
| 1059 | tv_cur.tv_usec - session->tv_prev.tv_usec > |
| 1060 | UI_REFRESH_INTERVAL) {
|
| 1061 | session_set_timeout(session, session->timeout_interval); |
| 1062 | session->send_data_progressive_notify |
| 1063 | (session, |
| 1064 | session->write_data_pos, write_data_len, |
| 1065 | session->send_data_progressive_notify_data); |
| 1066 | g_get_current_time(&session->tv_prev); |
| 1067 | } |
| 1068 | return TRUE;
|
| 1069 | } |
| 1070 | |
| 1071 | if (session->io_tag > 0) { |
| 1072 | g_source_remove(session->io_tag); |
| 1073 | session->io_tag = 0;
|
| 1074 | } |
| 1075 | |
| 1076 | /* callback */
|
| 1077 | ret = session->send_data_finished(session, write_data_len); |
| 1078 | session->send_data_notify(session, write_data_len, |
| 1079 | session->send_data_notify_data); |
| 1080 | |
| 1081 | return FALSE;
|
| 1082 | } |