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| 1 | /*
|
|---|---|
| 2 | * LibSylph -- E-Mail client library |
| 3 | * Copyright (C) 1999-2008 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 | #include <glib/gi18n.h> |
| 28 | #include <stdio.h> |
| 29 | #include <string.h> |
| 30 | #include <stdarg.h> |
| 31 | #include <ctype.h> |
| 32 | #include <unistd.h> |
| 33 | #include <time.h> |
| 34 | #include <errno.h> |
| 35 | |
| 36 | #include "pop.h" |
| 37 | #include "md5.h" |
| 38 | #include "prefs.h" |
| 39 | #include "prefs_account.h" |
| 40 | #include "utils.h" |
| 41 | #include "recv.h" |
| 42 | |
| 43 | gint pop3_greeting_recv (Pop3Session *session, |
| 44 | const gchar *msg);
|
| 45 | gint pop3_getauth_user_send (Pop3Session *session); |
| 46 | gint pop3_getauth_pass_send (Pop3Session *session); |
| 47 | gint pop3_getauth_apop_send (Pop3Session *session); |
| 48 | #if USE_SSL
|
| 49 | gint pop3_stls_send (Pop3Session *session); |
| 50 | gint pop3_stls_recv (Pop3Session *session); |
| 51 | #endif
|
| 52 | gint pop3_getrange_stat_send (Pop3Session *session); |
| 53 | gint pop3_getrange_stat_recv (Pop3Session *session, |
| 54 | const gchar *msg);
|
| 55 | gint pop3_getrange_last_send (Pop3Session *session); |
| 56 | gint pop3_getrange_last_recv (Pop3Session *session, |
| 57 | const gchar *msg);
|
| 58 | gint pop3_getrange_uidl_send (Pop3Session *session); |
| 59 | gint pop3_getrange_uidl_recv (Pop3Session *session, |
| 60 | const gchar *data,
|
| 61 | guint len); |
| 62 | gint pop3_getsize_list_send (Pop3Session *session); |
| 63 | gint pop3_getsize_list_recv (Pop3Session *session, |
| 64 | const gchar *data,
|
| 65 | guint len); |
| 66 | gint pop3_retr_send (Pop3Session *session); |
| 67 | gint pop3_retr_recv (Pop3Session *session, |
| 68 | FILE *fp, |
| 69 | guint len); |
| 70 | gint pop3_delete_send (Pop3Session *session); |
| 71 | gint pop3_delete_recv (Pop3Session *session); |
| 72 | gint pop3_logout_send (Pop3Session *session); |
| 73 | |
| 74 | void pop3_gen_send (Pop3Session *session,
|
| 75 | const gchar *format, ...);
|
| 76 | |
| 77 | static void pop3_session_destroy (Session *session); |
| 78 | |
| 79 | gint pop3_write_msg_to_file (const gchar *file,
|
| 80 | FILE *src_fp, |
| 81 | guint len); |
| 82 | |
| 83 | static Pop3State pop3_lookup_next (Pop3Session *session);
|
| 84 | |
| 85 | Pop3ErrorValue pop3_ok (Pop3Session *session, |
| 86 | const gchar *msg);
|
| 87 | |
| 88 | static gint pop3_session_recv_msg (Session *session,
|
| 89 | const gchar *msg);
|
| 90 | static gint pop3_session_recv_data_finished (Session *session,
|
| 91 | guchar *data, |
| 92 | guint len); |
| 93 | static gint pop3_session_recv_data_as_file_finished
|
| 94 | (Session *session, |
| 95 | FILE *fp, |
| 96 | guint len); |
| 97 | |
| 98 | |
| 99 | gint pop3_greeting_recv(Pop3Session *session, const gchar *msg)
|
| 100 | {
|
| 101 | session->state = POP3_GREETING; |
| 102 | |
| 103 | session->greeting = g_strdup(msg); |
| 104 | return PS_SUCCESS;
|
| 105 | } |
| 106 | |
| 107 | #if USE_SSL
|
| 108 | gint pop3_stls_send(Pop3Session *session) |
| 109 | {
|
| 110 | session->state = POP3_STLS; |
| 111 | pop3_gen_send(session, "STLS");
|
| 112 | return PS_SUCCESS;
|
| 113 | } |
| 114 | |
| 115 | gint pop3_stls_recv(Pop3Session *session) |
| 116 | {
|
| 117 | if (session_start_tls(SESSION(session)) < 0) { |
| 118 | session->error_val = PS_SOCKET; |
| 119 | return PS_SOCKET;
|
| 120 | } |
| 121 | return PS_SUCCESS;
|
| 122 | } |
| 123 | #endif /* USE_SSL */ |
| 124 | |
| 125 | gint pop3_getauth_user_send(Pop3Session *session) |
| 126 | {
|
| 127 | g_return_val_if_fail(session->user != NULL, -1); |
| 128 | |
| 129 | session->state = POP3_GETAUTH_USER; |
| 130 | pop3_gen_send(session, "USER %s", session->user);
|
| 131 | return PS_SUCCESS;
|
| 132 | } |
| 133 | |
| 134 | gint pop3_getauth_pass_send(Pop3Session *session) |
| 135 | {
|
| 136 | g_return_val_if_fail(session->pass != NULL, -1); |
| 137 | |
| 138 | session->state = POP3_GETAUTH_PASS; |
| 139 | pop3_gen_send(session, "PASS %s", session->pass);
|
| 140 | return PS_SUCCESS;
|
| 141 | } |
| 142 | |
| 143 | gint pop3_getauth_apop_send(Pop3Session *session) |
| 144 | {
|
| 145 | gchar *start, *end; |
| 146 | gchar *apop_str; |
| 147 | SMD5 *md5; |
| 148 | gchar *md5sum; |
| 149 | |
| 150 | g_return_val_if_fail(session->user != NULL, -1); |
| 151 | g_return_val_if_fail(session->pass != NULL, -1); |
| 152 | |
| 153 | session->state = POP3_GETAUTH_APOP; |
| 154 | |
| 155 | if ((start = strchr(session->greeting, '<')) == NULL) { |
| 156 | log_warning(_("Required APOP timestamp not found "
|
| 157 | "in greeting\n"));
|
| 158 | session->error_val = PS_PROTOCOL; |
| 159 | return PS_PROTOCOL;
|
| 160 | } |
| 161 | |
| 162 | if ((end = strchr(start, '>')) == NULL || end == start + 1) { |
| 163 | log_warning(_("Timestamp syntax error in greeting\n"));
|
| 164 | session->error_val = PS_PROTOCOL; |
| 165 | return PS_PROTOCOL;
|
| 166 | } |
| 167 | |
| 168 | *(end + 1) = '\0'; |
| 169 | |
| 170 | if (!is_ascii_str(start) || strchr(start, '@') == NULL) { |
| 171 | log_warning(_("Invalid timestamp in greeting\n"));
|
| 172 | session->error_val = PS_PROTOCOL; |
| 173 | return PS_PROTOCOL;
|
| 174 | } |
| 175 | |
| 176 | apop_str = g_strconcat(start, session->pass, NULL);
|
| 177 | md5 = s_gnet_md5_new((guchar *)apop_str, strlen(apop_str)); |
| 178 | md5sum = s_gnet_md5_get_string(md5); |
| 179 | |
| 180 | pop3_gen_send(session, "APOP %s %s", session->user, md5sum);
|
| 181 | |
| 182 | g_free(md5sum); |
| 183 | s_gnet_md5_delete(md5); |
| 184 | g_free(apop_str); |
| 185 | |
| 186 | return PS_SUCCESS;
|
| 187 | } |
| 188 | |
| 189 | gint pop3_getrange_stat_send(Pop3Session *session) |
| 190 | {
|
| 191 | session->state = POP3_GETRANGE_STAT; |
| 192 | pop3_gen_send(session, "STAT");
|
| 193 | return PS_SUCCESS;
|
| 194 | } |
| 195 | |
| 196 | gint pop3_getrange_stat_recv(Pop3Session *session, const gchar *msg)
|
| 197 | {
|
| 198 | if (sscanf(msg, "%d %lld", &session->count, &session->total_bytes) != 2) { |
| 199 | log_warning(_("POP3 protocol error\n"));
|
| 200 | session->error_val = PS_PROTOCOL; |
| 201 | return PS_PROTOCOL;
|
| 202 | } else {
|
| 203 | if (session->count == 0) { |
| 204 | session->uidl_is_valid = TRUE; |
| 205 | } else {
|
| 206 | session->msg = g_new0(Pop3MsgInfo, session->count + 1);
|
| 207 | session->cur_msg = 1;
|
| 208 | } |
| 209 | } |
| 210 | |
| 211 | return PS_SUCCESS;
|
| 212 | } |
| 213 | |
| 214 | gint pop3_getrange_last_send(Pop3Session *session) |
| 215 | {
|
| 216 | session->state = POP3_GETRANGE_LAST; |
| 217 | pop3_gen_send(session, "LAST");
|
| 218 | return PS_SUCCESS;
|
| 219 | } |
| 220 | |
| 221 | gint pop3_getrange_last_recv(Pop3Session *session, const gchar *msg)
|
| 222 | {
|
| 223 | gint last; |
| 224 | |
| 225 | if (sscanf(msg, "%d", &last) == 0) { |
| 226 | log_warning(_("POP3 protocol error\n"));
|
| 227 | session->error_val = PS_PROTOCOL; |
| 228 | return PS_PROTOCOL;
|
| 229 | } else {
|
| 230 | if (session->count > last) {
|
| 231 | session->new_msg_exist = TRUE; |
| 232 | session->cur_msg = last + 1;
|
| 233 | } else
|
| 234 | session->cur_msg = 0;
|
| 235 | } |
| 236 | |
| 237 | return PS_SUCCESS;
|
| 238 | } |
| 239 | |
| 240 | gint pop3_getrange_uidl_send(Pop3Session *session) |
| 241 | {
|
| 242 | session->state = POP3_GETRANGE_UIDL; |
| 243 | pop3_gen_send(session, "UIDL");
|
| 244 | return PS_SUCCESS;
|
| 245 | } |
| 246 | |
| 247 | gint pop3_getrange_uidl_recv(Pop3Session *session, const gchar *data, guint len)
|
| 248 | {
|
| 249 | gchar id[IDLEN + 1];
|
| 250 | gchar buf[POPBUFSIZE]; |
| 251 | gint buf_len; |
| 252 | gint num; |
| 253 | time_t recv_time; |
| 254 | const gchar *p = data;
|
| 255 | const gchar *lastp = data + len;
|
| 256 | const gchar *newline;
|
| 257 | |
| 258 | while (p < lastp) {
|
| 259 | if ((newline = memchr(p, '\r', lastp - p)) == NULL) |
| 260 | return PS_PROTOCOL;
|
| 261 | buf_len = MIN(newline - p, sizeof(buf) - 1); |
| 262 | memcpy(buf, p, buf_len); |
| 263 | buf[buf_len] = '\0';
|
| 264 | |
| 265 | p = newline + 1;
|
| 266 | if (p < lastp && *p == '\n') p++; |
| 267 | |
| 268 | if (sscanf(buf, "%d %" Xstr(IDLEN) "s", &num, id) != 2 || |
| 269 | num <= 0 || num > session->count) {
|
| 270 | log_warning(_("invalid UIDL response: %s\n"), buf);
|
| 271 | continue;
|
| 272 | } |
| 273 | |
| 274 | session->msg[num].uidl = g_strdup(id); |
| 275 | |
| 276 | recv_time = (time_t)g_hash_table_lookup(session->uidl_table, id); |
| 277 | session->msg[num].recv_time = recv_time; |
| 278 | |
| 279 | if (!session->ac_prefs->getall && recv_time != RECV_TIME_NONE)
|
| 280 | session->msg[num].received = TRUE; |
| 281 | |
| 282 | if (!session->new_msg_exist &&
|
| 283 | (session->ac_prefs->getall || recv_time == RECV_TIME_NONE || |
| 284 | session->ac_prefs->rmmail)) {
|
| 285 | session->cur_msg = num; |
| 286 | session->new_msg_exist = TRUE; |
| 287 | } |
| 288 | } |
| 289 | |
| 290 | session->uidl_is_valid = TRUE; |
| 291 | return PS_SUCCESS;
|
| 292 | } |
| 293 | |
| 294 | gint pop3_getsize_list_send(Pop3Session *session) |
| 295 | {
|
| 296 | session->state = POP3_GETSIZE_LIST; |
| 297 | pop3_gen_send(session, "LIST");
|
| 298 | return PS_SUCCESS;
|
| 299 | } |
| 300 | |
| 301 | gint pop3_getsize_list_recv(Pop3Session *session, const gchar *data, guint len)
|
| 302 | {
|
| 303 | gchar buf[POPBUFSIZE]; |
| 304 | gint buf_len; |
| 305 | guint num, size; |
| 306 | const gchar *p = data;
|
| 307 | const gchar *lastp = data + len;
|
| 308 | const gchar *newline;
|
| 309 | |
| 310 | while (p < lastp) {
|
| 311 | if ((newline = memchr(p, '\r', lastp - p)) == NULL) |
| 312 | return PS_PROTOCOL;
|
| 313 | buf_len = MIN(newline - p, sizeof(buf) - 1); |
| 314 | memcpy(buf, p, buf_len); |
| 315 | buf[buf_len] = '\0';
|
| 316 | |
| 317 | p = newline + 1;
|
| 318 | if (p < lastp && *p == '\n') p++; |
| 319 | |
| 320 | if (sscanf(buf, "%u %u", &num, &size) != 2) { |
| 321 | session->error_val = PS_PROTOCOL; |
| 322 | return PS_PROTOCOL;
|
| 323 | } |
| 324 | |
| 325 | if (num > 0 && num <= session->count) |
| 326 | session->msg[num].size = size; |
| 327 | if (num > 0 && num < session->cur_msg) |
| 328 | session->cur_total_bytes += size; |
| 329 | } |
| 330 | |
| 331 | return PS_SUCCESS;
|
| 332 | } |
| 333 | |
| 334 | gint pop3_retr_send(Pop3Session *session) |
| 335 | {
|
| 336 | session->state = POP3_RETR; |
| 337 | pop3_gen_send(session, "RETR %d", session->cur_msg);
|
| 338 | return PS_SUCCESS;
|
| 339 | } |
| 340 | |
| 341 | gint pop3_retr_recv(Pop3Session *session, FILE *fp, guint len) |
| 342 | {
|
| 343 | gchar *file; |
| 344 | gint drop_ok; |
| 345 | |
| 346 | file = get_tmp_file(); |
| 347 | if (pop3_write_msg_to_file(file, fp, len) < 0) { |
| 348 | g_free(file); |
| 349 | session->error_val = PS_IOERR; |
| 350 | return PS_IOERR;
|
| 351 | } |
| 352 | |
| 353 | drop_ok = session->drop_message(session, file); |
| 354 | g_unlink(file); |
| 355 | g_free(file); |
| 356 | if (drop_ok < 0) { |
| 357 | session->error_val = PS_IOERR; |
| 358 | return PS_IOERR;
|
| 359 | } |
| 360 | |
| 361 | session->cur_total_bytes += session->msg[session->cur_msg].size; |
| 362 | session->cur_total_recv_bytes += session->msg[session->cur_msg].size; |
| 363 | session->cur_total_num++; |
| 364 | |
| 365 | session->msg[session->cur_msg].received = TRUE; |
| 366 | session->msg[session->cur_msg].recv_time = |
| 367 | drop_ok == DROP_DONT_RECEIVE ? RECV_TIME_KEEP |
| 368 | : drop_ok == DROP_DELETE ? RECV_TIME_DELETE |
| 369 | : session->current_time; |
| 370 | |
| 371 | return PS_SUCCESS;
|
| 372 | } |
| 373 | |
| 374 | gint pop3_delete_send(Pop3Session *session) |
| 375 | {
|
| 376 | session->state = POP3_DELETE; |
| 377 | pop3_gen_send(session, "DELE %d", session->cur_msg);
|
| 378 | return PS_SUCCESS;
|
| 379 | } |
| 380 | |
| 381 | gint pop3_delete_recv(Pop3Session *session) |
| 382 | {
|
| 383 | session->msg[session->cur_msg].recv_time = RECV_TIME_DELETE; |
| 384 | session->msg[session->cur_msg].deleted = TRUE; |
| 385 | return PS_SUCCESS;
|
| 386 | } |
| 387 | |
| 388 | gint pop3_logout_send(Pop3Session *session) |
| 389 | {
|
| 390 | session->state = POP3_LOGOUT; |
| 391 | pop3_gen_send(session, "QUIT");
|
| 392 | return PS_SUCCESS;
|
| 393 | } |
| 394 | |
| 395 | void pop3_gen_send(Pop3Session *session, const gchar *format, ...) |
| 396 | {
|
| 397 | gchar buf[POPBUFSIZE + 1];
|
| 398 | va_list args; |
| 399 | |
| 400 | va_start(args, format); |
| 401 | g_vsnprintf(buf, sizeof(buf) - 2, format, args); |
| 402 | va_end(args); |
| 403 | |
| 404 | if (!g_ascii_strncasecmp(buf, "PASS ", 5)) |
| 405 | log_print("POP3> PASS ********\n");
|
| 406 | else
|
| 407 | log_print("POP3> %s\n", buf);
|
| 408 | |
| 409 | session_send_msg(SESSION(session), SESSION_MSG_NORMAL, buf); |
| 410 | } |
| 411 | |
| 412 | Session *pop3_session_new(PrefsAccount *account) |
| 413 | {
|
| 414 | Pop3Session *session; |
| 415 | |
| 416 | g_return_val_if_fail(account != NULL, NULL); |
| 417 | |
| 418 | session = g_new0(Pop3Session, 1);
|
| 419 | |
| 420 | session_init(SESSION(session)); |
| 421 | |
| 422 | SESSION(session)->type = SESSION_POP3; |
| 423 | |
| 424 | SESSION(session)->recv_msg = pop3_session_recv_msg; |
| 425 | SESSION(session)->send_data_finished = NULL;
|
| 426 | SESSION(session)->recv_data_finished = pop3_session_recv_data_finished; |
| 427 | SESSION(session)->recv_data_as_file_finished = |
| 428 | pop3_session_recv_data_as_file_finished; |
| 429 | |
| 430 | SESSION(session)->destroy = pop3_session_destroy; |
| 431 | |
| 432 | session->state = POP3_READY; |
| 433 | session->ac_prefs = account; |
| 434 | session->uidl_table = pop3_get_uidl_table(account); |
| 435 | session->current_time = time(NULL);
|
| 436 | session->error_val = PS_SUCCESS; |
| 437 | session->error_msg = NULL;
|
| 438 | |
| 439 | session->user = g_strdup(account->userid); |
| 440 | session->pass = account->passwd ? g_strdup(account->passwd) : |
| 441 | account->tmp_pass ? g_strdup(account->tmp_pass) : NULL;
|
| 442 | |
| 443 | SESSION(session)->server = g_strdup(account->recv_server); |
| 444 | |
| 445 | #if USE_SSL
|
| 446 | SESSION(session)->port = account->set_popport ? |
| 447 | account->popport : account->ssl_pop == SSL_TUNNEL ? 995 : 110; |
| 448 | SESSION(session)->ssl_type = account->ssl_pop; |
| 449 | if (account->ssl_pop != SSL_NONE)
|
| 450 | SESSION(session)->nonblocking = account->use_nonblocking_ssl; |
| 451 | #else
|
| 452 | SESSION(session)->port = account->set_popport ? account->popport : 110;
|
| 453 | #endif
|
| 454 | |
| 455 | return SESSION(session);
|
| 456 | } |
| 457 | |
| 458 | static void pop3_session_destroy(Session *session) |
| 459 | {
|
| 460 | Pop3Session *pop3_session = POP3_SESSION(session); |
| 461 | gint n; |
| 462 | |
| 463 | g_return_if_fail(session != NULL);
|
| 464 | |
| 465 | for (n = 1; n <= pop3_session->count; n++) |
| 466 | g_free(pop3_session->msg[n].uidl); |
| 467 | g_free(pop3_session->msg); |
| 468 | |
| 469 | if (pop3_session->uidl_table) {
|
| 470 | hash_free_strings(pop3_session->uidl_table); |
| 471 | g_hash_table_destroy(pop3_session->uidl_table); |
| 472 | } |
| 473 | |
| 474 | g_free(pop3_session->greeting); |
| 475 | g_free(pop3_session->user); |
| 476 | g_free(pop3_session->pass); |
| 477 | g_free(pop3_session->error_msg); |
| 478 | } |
| 479 | |
| 480 | GHashTable *pop3_get_uidl_table(PrefsAccount *ac_prefs) |
| 481 | {
|
| 482 | GHashTable *table; |
| 483 | gchar *path; |
| 484 | FILE *fp; |
| 485 | gchar buf[POPBUFSIZE]; |
| 486 | gchar uidl[POPBUFSIZE]; |
| 487 | time_t recv_time; |
| 488 | time_t now; |
| 489 | gchar *uid; |
| 490 | |
| 491 | table = g_hash_table_new(g_str_hash, g_str_equal); |
| 492 | |
| 493 | uid = uriencode_for_filename(ac_prefs->userid); |
| 494 | path = g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S, |
| 495 | UIDL_DIR, G_DIR_SEPARATOR_S, ac_prefs->recv_server, |
| 496 | "-", uid, NULL); |
| 497 | g_free(uid); |
| 498 | if ((fp = g_fopen(path, "rb")) == NULL) { |
| 499 | if (ENOENT != errno) FILE_OP_ERROR(path, "fopen"); |
| 500 | g_free(path); |
| 501 | return table;
|
| 502 | } |
| 503 | g_free(path); |
| 504 | |
| 505 | now = time(NULL);
|
| 506 | |
| 507 | while (fgets(buf, sizeof(buf), fp) != NULL) { |
| 508 | strretchomp(buf); |
| 509 | recv_time = RECV_TIME_NONE; |
| 510 | if (sscanf(buf, "%s\t%ld", uidl, &recv_time) != 2) { |
| 511 | if (sscanf(buf, "%s", uidl) != 1) |
| 512 | continue;
|
| 513 | else
|
| 514 | recv_time = now; |
| 515 | } |
| 516 | if (recv_time == RECV_TIME_NONE)
|
| 517 | recv_time = RECV_TIME_RECEIVED; |
| 518 | g_hash_table_insert(table, g_strdup(uidl), |
| 519 | GINT_TO_POINTER(recv_time)); |
| 520 | } |
| 521 | |
| 522 | fclose(fp); |
| 523 | return table;
|
| 524 | } |
| 525 | |
| 526 | gint pop3_write_uidl_list(Pop3Session *session) |
| 527 | {
|
| 528 | gchar *path; |
| 529 | PrefFile *pfile; |
| 530 | Pop3MsgInfo *msg; |
| 531 | gint n; |
| 532 | gchar *uid; |
| 533 | |
| 534 | if (!session->uidl_is_valid) return 0; |
| 535 | |
| 536 | uid = uriencode_for_filename(session->ac_prefs->userid); |
| 537 | path = g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S, |
| 538 | UIDL_DIR, G_DIR_SEPARATOR_S, |
| 539 | session->ac_prefs->recv_server, |
| 540 | "-", uid, NULL); |
| 541 | g_free(uid); |
| 542 | if ((pfile = prefs_file_open(path)) == NULL) { |
| 543 | g_free(path); |
| 544 | return -1; |
| 545 | } |
| 546 | prefs_file_set_backup_generation(pfile, 0);
|
| 547 | |
| 548 | for (n = 1; n <= session->count; n++) { |
| 549 | msg = &session->msg[n]; |
| 550 | if (!msg->uidl || !msg->received)
|
| 551 | continue;
|
| 552 | if (session->state == POP3_DONE && msg->deleted)
|
| 553 | continue;
|
| 554 | fprintf(pfile->fp, "%s\t%ld\n", msg->uidl, msg->recv_time);
|
| 555 | } |
| 556 | |
| 557 | if (prefs_file_close(pfile) < 0) |
| 558 | g_warning("%s: failed to write UIDL list.\n", path);
|
| 559 | |
| 560 | g_free(path); |
| 561 | |
| 562 | return 0; |
| 563 | } |
| 564 | |
| 565 | gint pop3_write_msg_to_file(const gchar *file, FILE *src_fp, guint len)
|
| 566 | {
|
| 567 | FILE *fp; |
| 568 | gchar buf[BUFFSIZE]; |
| 569 | gchar last_ch = '\0';
|
| 570 | |
| 571 | g_return_val_if_fail(file != NULL, -1); |
| 572 | |
| 573 | if ((fp = g_fopen(file, "wb")) == NULL) { |
| 574 | FILE_OP_ERROR(file, "fopen");
|
| 575 | return -1; |
| 576 | } |
| 577 | |
| 578 | if (change_file_mode_rw(fp, file) < 0) |
| 579 | FILE_OP_ERROR(file, "chmod");
|
| 580 | |
| 581 | while (fgets(buf, sizeof(buf), src_fp) != NULL) { |
| 582 | gchar *p = buf; |
| 583 | gint len; |
| 584 | |
| 585 | len = strlen(buf); |
| 586 | if (len > 0) { |
| 587 | last_ch = buf[len - 1];
|
| 588 | if (last_ch == '\n' && len > 1 && |
| 589 | buf[len - 2] == '\r') { |
| 590 | buf[len - 2] = '\n'; |
| 591 | buf[len - 1] = '\0'; |
| 592 | } else if (last_ch == '\r') |
| 593 | buf[len - 1] = '\0'; |
| 594 | } else
|
| 595 | last_ch = '\0';
|
| 596 | |
| 597 | if ((last_ch == '\0' || last_ch == '\n') && |
| 598 | *p == '.' && *(p + 1) == '.') |
| 599 | p++; |
| 600 | |
| 601 | if (fputs(p, fp) == EOF) { |
| 602 | FILE_OP_ERROR(file, "fputs");
|
| 603 | g_warning("can't write to file: %s\n", file);
|
| 604 | fclose(fp); |
| 605 | g_unlink(file); |
| 606 | return -1; |
| 607 | } |
| 608 | } |
| 609 | |
| 610 | if (ferror(src_fp)) {
|
| 611 | FILE_OP_ERROR(file, "fgets");
|
| 612 | fclose(fp); |
| 613 | g_unlink(file); |
| 614 | return -1; |
| 615 | } |
| 616 | |
| 617 | if (fclose(fp) == EOF) { |
| 618 | FILE_OP_ERROR(file, "fclose");
|
| 619 | g_unlink(file); |
| 620 | return -1; |
| 621 | } |
| 622 | |
| 623 | return 0; |
| 624 | } |
| 625 | |
| 626 | static Pop3State pop3_lookup_next(Pop3Session *session)
|
| 627 | {
|
| 628 | Pop3MsgInfo *msg; |
| 629 | PrefsAccount *ac = session->ac_prefs; |
| 630 | gint size; |
| 631 | gboolean size_limit_over; |
| 632 | |
| 633 | for (;;) {
|
| 634 | msg = &session->msg[session->cur_msg]; |
| 635 | size = msg->size; |
| 636 | size_limit_over = |
| 637 | (ac->enable_size_limit && |
| 638 | ac->size_limit > 0 &&
|
| 639 | size > ac->size_limit * 1024);
|
| 640 | |
| 641 | if (msg->recv_time == RECV_TIME_DELETE ||
|
| 642 | (ac->rmmail && |
| 643 | msg->recv_time != RECV_TIME_NONE && |
| 644 | msg->recv_time != RECV_TIME_KEEP && |
| 645 | session->current_time - msg->recv_time >= |
| 646 | ac->msg_leave_time * 24 * 60 * 60)) { |
| 647 | log_print(_("POP3: Deleting expired message %d\n"),
|
| 648 | session->cur_msg); |
| 649 | session->cur_total_bytes += size; |
| 650 | pop3_delete_send(session); |
| 651 | return POP3_DELETE;
|
| 652 | } |
| 653 | |
| 654 | if (size_limit_over && !msg->received) {
|
| 655 | log_print |
| 656 | (_("POP3: Skipping message %d (%d bytes)\n"),
|
| 657 | session->cur_msg, size); |
| 658 | session->skipped_num++; |
| 659 | } |
| 660 | |
| 661 | if (size == 0 || msg->received || size_limit_over) { |
| 662 | session->cur_total_bytes += size; |
| 663 | if (session->cur_msg == session->count) {
|
| 664 | pop3_logout_send(session); |
| 665 | return POP3_LOGOUT;
|
| 666 | } else
|
| 667 | session->cur_msg++; |
| 668 | } else
|
| 669 | break;
|
| 670 | } |
| 671 | |
| 672 | pop3_retr_send(session); |
| 673 | |
| 674 | return POP3_RETR;
|
| 675 | } |
| 676 | |
| 677 | Pop3ErrorValue pop3_ok(Pop3Session *session, const gchar *msg)
|
| 678 | {
|
| 679 | Pop3ErrorValue ok; |
| 680 | |
| 681 | log_print("POP3< %s\n", msg);
|
| 682 | |
| 683 | if (!strncmp(msg, "+OK", 3)) |
| 684 | ok = PS_SUCCESS; |
| 685 | else if (!strncmp(msg, "-ERR", 4)) { |
| 686 | if (strstr(msg + 4, "lock") || |
| 687 | strstr(msg + 4, "Lock") || |
| 688 | strstr(msg + 4, "LOCK") || |
| 689 | strstr(msg + 4, "wait")) { |
| 690 | log_warning(_("mailbox is locked\n"));
|
| 691 | ok = PS_LOCKBUSY; |
| 692 | } else if (strcasestr(msg + 4, "timeout")) { |
| 693 | log_warning(_("session timeout\n"));
|
| 694 | ok = PS_ERROR; |
| 695 | } else {
|
| 696 | switch (session->state) {
|
| 697 | #if USE_SSL
|
| 698 | case POP3_STLS:
|
| 699 | log_warning(_("can't start TLS session\n"));
|
| 700 | ok = PS_ERROR; |
| 701 | break;
|
| 702 | #endif
|
| 703 | case POP3_GETAUTH_USER:
|
| 704 | case POP3_GETAUTH_PASS:
|
| 705 | case POP3_GETAUTH_APOP:
|
| 706 | log_warning(_("error occurred on authentication\n"));
|
| 707 | ok = PS_AUTHFAIL; |
| 708 | break;
|
| 709 | case POP3_GETRANGE_LAST:
|
| 710 | case POP3_GETRANGE_UIDL:
|
| 711 | log_warning(_("command not supported\n"));
|
| 712 | ok = PS_NOTSUPPORTED; |
| 713 | break;
|
| 714 | default:
|
| 715 | log_warning(_("error occurred on POP3 session\n"));
|
| 716 | ok = PS_ERROR; |
| 717 | } |
| 718 | } |
| 719 | |
| 720 | g_free(session->error_msg); |
| 721 | session->error_msg = g_strdup(msg); |
| 722 | fprintf(stderr, "POP3: %s\n", msg);
|
| 723 | } else
|
| 724 | ok = PS_PROTOCOL; |
| 725 | |
| 726 | /* don't overwrite previous error on logout */
|
| 727 | if (session->state != POP3_LOGOUT)
|
| 728 | session->error_val = ok; |
| 729 | |
| 730 | return ok;
|
| 731 | } |
| 732 | |
| 733 | static gint pop3_session_recv_msg(Session *session, const gchar *msg) |
| 734 | {
|
| 735 | Pop3Session *pop3_session = POP3_SESSION(session); |
| 736 | gint val = PS_SUCCESS; |
| 737 | const gchar *body;
|
| 738 | |
| 739 | body = msg; |
| 740 | if (pop3_session->state != POP3_GETRANGE_UIDL_RECV &&
|
| 741 | pop3_session->state != POP3_GETSIZE_LIST_RECV) {
|
| 742 | val = pop3_ok(pop3_session, msg); |
| 743 | if (val != PS_SUCCESS) {
|
| 744 | if (val == PS_SOCKET) {
|
| 745 | pop3_session->state = POP3_ERROR; |
| 746 | return -1; |
| 747 | } |
| 748 | if (val != PS_NOTSUPPORTED) {
|
| 749 | if (pop3_session->state != POP3_LOGOUT) {
|
| 750 | if (pop3_logout_send(pop3_session) == PS_SUCCESS)
|
| 751 | return 0; |
| 752 | else
|
| 753 | return -1; |
| 754 | } |
| 755 | } |
| 756 | } |
| 757 | |
| 758 | if (*body == '+' || *body == '-') |
| 759 | body++; |
| 760 | while (g_ascii_isalpha(*body))
|
| 761 | body++; |
| 762 | while (g_ascii_isspace(*body))
|
| 763 | body++; |
| 764 | } |
| 765 | |
| 766 | switch (pop3_session->state) {
|
| 767 | case POP3_READY:
|
| 768 | case POP3_GREETING:
|
| 769 | val = pop3_greeting_recv(pop3_session, body); |
| 770 | #if USE_SSL
|
| 771 | if (pop3_session->ac_prefs->ssl_pop == SSL_STARTTLS)
|
| 772 | val = pop3_stls_send(pop3_session); |
| 773 | else
|
| 774 | #endif
|
| 775 | if (pop3_session->ac_prefs->use_apop_auth)
|
| 776 | val = pop3_getauth_apop_send(pop3_session); |
| 777 | else
|
| 778 | val = pop3_getauth_user_send(pop3_session); |
| 779 | break;
|
| 780 | #if USE_SSL
|
| 781 | case POP3_STLS:
|
| 782 | if ((val = pop3_stls_recv(pop3_session)) != PS_SUCCESS)
|
| 783 | return -1; |
| 784 | if (pop3_session->ac_prefs->use_apop_auth)
|
| 785 | val = pop3_getauth_apop_send(pop3_session); |
| 786 | else
|
| 787 | val = pop3_getauth_user_send(pop3_session); |
| 788 | break;
|
| 789 | #endif
|
| 790 | case POP3_GETAUTH_USER:
|
| 791 | val = pop3_getauth_pass_send(pop3_session); |
| 792 | break;
|
| 793 | case POP3_GETAUTH_PASS:
|
| 794 | case POP3_GETAUTH_APOP:
|
| 795 | if (pop3_session->auth_only)
|
| 796 | val = pop3_logout_send(pop3_session); |
| 797 | else
|
| 798 | val = pop3_getrange_stat_send(pop3_session); |
| 799 | break;
|
| 800 | case POP3_GETRANGE_STAT:
|
| 801 | if ((val = pop3_getrange_stat_recv(pop3_session, body)) < 0) |
| 802 | return -1; |
| 803 | if (pop3_session->count > 0) |
| 804 | val = pop3_getrange_uidl_send(pop3_session); |
| 805 | else
|
| 806 | val = pop3_logout_send(pop3_session); |
| 807 | break;
|
| 808 | case POP3_GETRANGE_LAST:
|
| 809 | if (val == PS_NOTSUPPORTED)
|
| 810 | pop3_session->error_val = PS_SUCCESS; |
| 811 | else if ((val = pop3_getrange_last_recv |
| 812 | (pop3_session, body)) < 0)
|
| 813 | return -1; |
| 814 | if (pop3_session->cur_msg > 0) |
| 815 | val = pop3_getsize_list_send(pop3_session); |
| 816 | else
|
| 817 | val = pop3_logout_send(pop3_session); |
| 818 | break;
|
| 819 | case POP3_GETRANGE_UIDL:
|
| 820 | if (val == PS_NOTSUPPORTED) {
|
| 821 | pop3_session->error_val = PS_SUCCESS; |
| 822 | val = pop3_getrange_last_send(pop3_session); |
| 823 | } else {
|
| 824 | pop3_session->state = POP3_GETRANGE_UIDL_RECV; |
| 825 | val = session_recv_data(session, 0, ".\r\n"); |
| 826 | } |
| 827 | break;
|
| 828 | case POP3_GETSIZE_LIST:
|
| 829 | pop3_session->state = POP3_GETSIZE_LIST_RECV; |
| 830 | val = session_recv_data(session, 0, ".\r\n"); |
| 831 | break;
|
| 832 | case POP3_RETR:
|
| 833 | pop3_session->state = POP3_RETR_RECV; |
| 834 | val = session_recv_data_as_file(session, 0, ".\r\n"); |
| 835 | break;
|
| 836 | case POP3_DELETE:
|
| 837 | val = pop3_delete_recv(pop3_session); |
| 838 | if (pop3_session->cur_msg == pop3_session->count)
|
| 839 | val = pop3_logout_send(pop3_session); |
| 840 | else {
|
| 841 | pop3_session->cur_msg++; |
| 842 | if (pop3_lookup_next(pop3_session) == POP3_ERROR)
|
| 843 | return -1; |
| 844 | } |
| 845 | break;
|
| 846 | case POP3_LOGOUT:
|
| 847 | if (val == PS_SUCCESS)
|
| 848 | pop3_session->state = POP3_DONE; |
| 849 | else
|
| 850 | pop3_session->state = POP3_ERROR; |
| 851 | session_disconnect(session); |
| 852 | break;
|
| 853 | case POP3_ERROR:
|
| 854 | default:
|
| 855 | return -1; |
| 856 | } |
| 857 | |
| 858 | if (val == PS_SUCCESS)
|
| 859 | return 0; |
| 860 | else
|
| 861 | return -1; |
| 862 | } |
| 863 | |
| 864 | static gint pop3_session_recv_data_finished(Session *session, guchar *data,
|
| 865 | guint len) |
| 866 | {
|
| 867 | Pop3Session *pop3_session = POP3_SESSION(session); |
| 868 | Pop3ErrorValue val = PS_SUCCESS; |
| 869 | |
| 870 | switch (pop3_session->state) {
|
| 871 | case POP3_GETRANGE_UIDL_RECV:
|
| 872 | val = pop3_getrange_uidl_recv(pop3_session, (gchar *)data, len); |
| 873 | if (val == PS_SUCCESS) {
|
| 874 | if (pop3_session->new_msg_exist)
|
| 875 | pop3_getsize_list_send(pop3_session); |
| 876 | else
|
| 877 | pop3_logout_send(pop3_session); |
| 878 | } else
|
| 879 | return -1; |
| 880 | break;
|
| 881 | case POP3_GETSIZE_LIST_RECV:
|
| 882 | val = pop3_getsize_list_recv(pop3_session, (gchar *)data, len); |
| 883 | if (val == PS_SUCCESS) {
|
| 884 | if (pop3_lookup_next(pop3_session) == POP3_ERROR)
|
| 885 | return -1; |
| 886 | } else
|
| 887 | return -1; |
| 888 | break;
|
| 889 | case POP3_ERROR:
|
| 890 | default:
|
| 891 | return -1; |
| 892 | } |
| 893 | |
| 894 | return 0; |
| 895 | } |
| 896 | |
| 897 | static gint pop3_session_recv_data_as_file_finished(Session *session, FILE *fp,
|
| 898 | guint len) |
| 899 | {
|
| 900 | Pop3Session *pop3_session = POP3_SESSION(session); |
| 901 | |
| 902 | g_return_val_if_fail(pop3_session->state == POP3_RETR_RECV, -1);
|
| 903 | |
| 904 | if (pop3_retr_recv(pop3_session, fp, len) < 0) |
| 905 | return -1; |
| 906 | |
| 907 | /* disconnected? */
|
| 908 | if (!session->sock)
|
| 909 | return -1; |
| 910 | |
| 911 | if (pop3_session->msg[pop3_session->cur_msg].recv_time
|
| 912 | == RECV_TIME_DELETE || |
| 913 | (pop3_session->ac_prefs->rmmail && |
| 914 | pop3_session->ac_prefs->msg_leave_time == 0 &&
|
| 915 | pop3_session->msg[pop3_session->cur_msg].recv_time |
| 916 | != RECV_TIME_KEEP)) |
| 917 | pop3_delete_send(pop3_session); |
| 918 | else if (pop3_session->cur_msg == pop3_session->count) |
| 919 | pop3_logout_send(pop3_session); |
| 920 | else {
|
| 921 | pop3_session->cur_msg++; |
| 922 | if (pop3_lookup_next(pop3_session) == POP3_ERROR)
|
| 923 | return -1; |
| 924 | } |
| 925 | |
| 926 | return 0; |
| 927 | } |