/* $Id: mail2.c,v 1.12 2004/01/30 20:57:56 reinelt Exp $ * * mail: pop3, imap, news functions * * Copyright 2001 Leopold Tötsch * * This file is part of LCD4Linux. * * LCD4Linux is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2, or (at your option) * any later version. * * LCD4Linux is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. * * * $Log: mail2.c,v $ * Revision 1.12 2004/01/30 20:57:56 reinelt * HD44780 patch from Martin Hejl * dmalloc integrated * * Revision 1.11 2004/01/29 04:40:02 reinelt * every .c file includes "config.h" now * * Revision 1.10 2004/01/09 04:16:06 reinelt * added 'section' argument to cfg_get(), but NULLed it on all calls by now. * * Revision 1.9 2003/10/05 17:58:50 reinelt * libtool junk; copyright messages cleaned up * * Revision 1.8 2003/02/22 07:53:10 reinelt * cfg_get(key,defval) * * Revision 1.7 2002/12/05 19:23:01 reinelt * fixed undefined operations found by gcc3 * * Revision 1.6 2001/09/12 06:17:22 reinelt * *** empty log message *** * * Revision 1.5 2001/09/12 05:58:16 reinelt * fixed bug in mail2.c * * Revision 1.4 2001/03/16 09:28:08 ltoetsch * bugfixes * * Revision 1.3 2001/03/15 14:25:05 ltoetsch * added unread/total news * * Revision 1.2 2001/03/15 11:10:53 ltoetsch * added quit/logout to pop/imap * * Revision 1.1 2001/03/14 13:19:29 ltoetsch * Added pop3/imap4 mail support * * * Exported Functions: * * int Mail_pop_imap_news(char *mbox, int *total_mails, int *unseen); * returns -1 on error, 0 on success * */ #include "config.h" #include #include #include #include #include #include #include "debug.h" #include "cfg.h" #include "socket.h" #ifdef WITH_DMALLOC #include #endif #define PROTO_UNKNOWN -1 #define PROTO_POP3 110 #define PROTO_NNTP 119 #define PROTO_IMAP4 143 /* * parse_proto() * * parse a MailboxN entry in 's' as * * proto:[user[:pass]@]machine[:port][/dir] * * 's' get's destroyed * returns 0 on success, -1 on error * */ static int parse_proto(char *s, int *proto, char **user, char **pass, char **machine, int *port, char **dir) { struct { char *prefix; int proto; } protos[] = { { "pop3:", PROTO_POP3 }, { "nntp:", PROTO_NNTP }, { "imap4:", PROTO_IMAP4 }, }; int i; char *p, *q; static char empty[] = ""; static char INBOX[] = "INBOX"; *proto = *port = PROTO_UNKNOWN; for (i=0; i< sizeof(protos)/sizeof(protos[0]); i++) { if (memcmp(s, protos[i].prefix, strlen(protos[i].prefix)) == 0) { *proto = *port = protos[i].proto; break; } } if (*proto == PROTO_UNKNOWN) return -1; p = s + strlen(protos[i].prefix); /* * this might fail if user or pass contains a '/' * */ if ((q = strchr(p, '/')) != NULL) { /* /dir */ *dir = q + 1; *q = '\0'; } else *dir = empty; if ((q = strchr(p, '@')) != NULL) { /* user, pass is present */ *machine = q + 1; *q = '\0'; *user = p; if ((q = strchr(p, ':')) != NULL) { /* user[:pass] */ *q = '\0'; *pass = q+1; } else *pass = empty; } else { *machine = p; *user = *pass = empty; } if ((q = strchr(*machine, ':')) != NULL) { /* machine[:pass] */ *q = '\0'; *port = atoi(q+1); if (*port <= 0 || *port >= 0xffff) return -1; } if (!**machine) return -1; if (*proto == PROTO_POP3 && **dir) return -1; if (*proto == PROTO_IMAP4 && !**dir) *dir = INBOX; return 0; } /* write buffer, compare with match */ #define BUFLEN 256 static int wr_rd(int fd, char *buf, char *match, char *err, char *machine, int port) { int n; n = write_socket(fd, buf); if (n <= 0) { error("Couldn't write to %s:%d (%s)", machine, port, strerror(errno)); close(fd); return -1; } n = read_socket_match(fd, buf, BUFLEN-1, match); if (n <= 0) { error("%s %s:%d (%s)", err, machine, port, strerror(errno)); close(fd); return -1; } return n; } static int check_nntp(char *user, char *pass, char *machine, int port, char *dir, int *total, int *unseen) { int fd; int n; char buf[BUFLEN]; char line[BUFLEN]; FILE *fp; int groups; int err; int totg, unsg; int first; *total = 0; *unseen = 0; strcpy(buf, cfg_get(NULL, "Newsrc", ".newsrc")); if (*buf == 0 || ((fp = fopen(buf, "r")) == NULL)) { error("Couldn't open .newsrc-file '%s'", buf); return -1; } fd = open_socket(machine, port); if (fd < 0) { error("Couldn't connect to %s:%d (%s)", machine, port, strerror(errno)); fclose(fp); return -1; } n = read_socket_match(fd, buf, BUFLEN-1, "20"); /* server ready */ if (n <= 0) { error("Server doesn't respond %s:%d (%s)", machine, port, strerror(errno)); close(fd); return -1; } /* do auth if necessary, this is NOT TESTED */ if (*user) { sprintf(buf, "AUTHINFO USER %s\r\n", user); if (wr_rd(fd, buf, "381", "No AUTH required?", machine, port) <= 0) return -1; if (*pass) { sprintf(buf, "AUTHINFO PASS %s\r\n", pass); if (wr_rd(fd, buf, "281", "Wrong PASS?", machine, port) <= 0) return -1; } } // Fixme: this is badbadbadbad sleep(2); /* wait for newsserver to read groupinfo */ groups = 0; err = 0; totg = unsg = 0; /* total, unseen */ while (fgets(line, sizeof(line)-1, fp) && err < 5) { char group[256]; char *p; int smin, smax, lmin, lmax; if (sscanf(line, "%255[^:]:", group) != 1) { error("Couldn't read group in '%s'", line); err++; continue; } if ((p=strchr(group,':')) != NULL) *p='\0'; /* check dir if it matches group */ if (*dir && strcmp(dir, group)) continue; sprintf(buf, "GROUP %s\r\n", group); if (wr_rd(fd, buf, "211", "Wrong Group", machine, port) <= 0) { err++; continue; } /* answer 211 total smin smax group: */ sscanf(buf, "211 %*d %d %d", &smin, &smax); debug("nntp: %s: smin=%d smax=%d", group, smin, smax); totg += smax-smin-1; p = strchr(line, ':'); p++; first = 1; while (1) { lmin = strtol(p, &p, 10); if (*p == '-') lmax = strtol(p+1, &p, 10); else lmax=lmin; debug("nntp: %s: lmin=%d lmax=%d", group, lmin, lmax); if (smax >= lmax) { /* server has more articles */ if (first) unsg += smax - lmax; else unsg -= lmax-lmin+1; first = 0; } else /* local has higher article ??? */ break; if (*p == ',') p++; else break; } } /* while fp */ fclose(fp); strcpy(buf, "QUIT\r\n"); wr_rd(fd, buf, "2", "Quit", machine, port); close(fd); *unseen = unsg; *total = totg; return 0; } static int check_imap4(char *user, char *pass, char *machine, int port, char *dir, int *total, int *unseen) { int fd = open_socket(machine, port); int n; char buf[BUFLEN]; char *p; *total=0; *unseen = 0; if (fd < 0) { error("Couldn't connect to %s:%d (%s)", machine, port, strerror(errno)); return -1; } n = read_socket_match(fd, buf, BUFLEN-1, "* OK"); if (n <= 0) { error("Server doesn't respond %s:%d (%s)", machine, port, strerror(errno)); close(fd); return -1; } sprintf(buf, ". LOGIN %s %s\r\n", user, pass); if (wr_rd(fd, buf, ". OK", "Wrong User/PASS?", machine, port) <= 0) return -1; sprintf(buf, ". STATUS %s (MESSAGES UNSEEN)\r\n", dir); if (wr_rd(fd, buf, "*", "Wrong dir?", machine, port) <= 0) return -1; if ((p = strstr(buf, "MESSAGES")) != NULL) sscanf(p, "%*s %d", total); else { error("Server doesn't provide MESSAGES (%s)", machine, port, strerror(errno)); close(fd); return -1; } if ((p = strstr(buf, "UNSEEN")) != NULL) sscanf(p, "%*s %d", unseen); else { error("Server doesn't provide UNSEEN (%s)", machine, port, strerror(errno)); close(fd); return -1; } strcpy(buf,". LOGOUT\r\n"); wr_rd(fd, buf, "", "LOGOUT", machine, port); close(fd); return 0; } static int check_pop3(char *user, char *pass, char *machine, int port, int *total, int *unseen) { int fd = open_socket(machine, port); int n; char buf[BUFLEN]; *total=0; *unseen=0; if (fd < 0) { error("Couldn't connect to %s:%d (%s)", machine, port, strerror(errno)); return -1; } n = read_socket_match(fd, buf, BUFLEN-1, "+OK"); if (n <= 0) { error("Server doesn't respond %s:%d (%s)", machine, port, strerror(errno)); close(fd); return -1; } if (*user) { sprintf(buf, "USER %s\r\n", user); if (wr_rd(fd, buf, "+OK", "Wrong USER?", machine, port) <= 0) return -1; } if (*pass) { sprintf(buf, "PASS %s\r\n", pass); if (wr_rd(fd, buf, "+OK", "Wrong PASS?", machine, port) <= 0) return -1; } sprintf(buf, "STAT\r\n"); if (wr_rd(fd, buf, "+OK", "Wrong STAT answer?", machine, port) <= 0) return -1; sscanf(buf, "+OK %d", total); if (*total) { sprintf(buf, "LAST\r\n"); if (wr_rd(fd, buf, "+OK", "Wrong LAST answer?", machine, port) <= 0) return -1; sscanf(buf, "+OK %d", unseen); *unseen = *total - *unseen; } strcpy(buf, "QUIT\r\n"); wr_rd(fd, buf, "+OK", "Quit", machine, port); close(fd); return 0; } int Mail_pop_imap_news(char *s, int *total, int *unseen) { int proto, port, ret; char *user, *pass, *machine, *dir, *ds; ds = strdup(s); if (ds == NULL) { error("Out of mem"); return -1; } ret = parse_proto(ds, &proto, &user, &pass, &machine, &port, &dir) ; if (ret < 0) error("Not a pop3/imap4 mailbox"); else ret = (proto == PROTO_POP3) ? check_pop3(user, pass, machine, port, total, unseen) : (proto == PROTO_NNTP) ? check_nntp(user, pass, machine, port, dir, total, unseen) : check_imap4(user, pass, machine, port, dir, total, unseen); free(ds); return ret; } #ifdef STANDALONE /* * test parse_proto with some garbage * */ int foreground = 1; int debugging = 3; /* * for STANDALONE tests, disable Text driver and * * cc -DSTANDALONE mail2.c socket.c debug.c -g -Wall -o mail2 * */ #ifdef CHECK_PARSER static int test(char *s) { int ret; int proto, port; char *user, *pass, *machine, *dir, *ds; ds = strdup(s); ret = parse_proto(ds, &proto, &user, &pass, &machine, &port, &dir) ; printf("parse_proto(%s) ret=%d\n", s, ret); if (!ret) printf( "\tproto='%d'\n" "\tuser='%s'\n" "\tpass='%s'\n" "\tmachine='%s'\n" "\tport='%d'\n" "\tdir='%s'\n", proto,user,pass,machine,port,dir); free(ds); return ret; } #endif int main(int argc, char *argv[]) { #ifdef CHECK_PARSER int i, ret; /* proto:[user[:pass]@]machine[:port][/dir] */ char *t[] = { "pop3:sepp:Geheim@Rechner:123", "pop3:sepp@Rechner", "pop3:Rechner:123", "imap4:sepp:Geheim@Rechner/dir@/:pfad", "imap4:sepp:Geheim@Rechner", "imap4sepp:Geheim@Rechner/dir@/:pfad", "imap4:sepp:Geheim/Rechner/dir@/:pfad", "pop3:sepp@:", 0 }; ret = 0; if (argc > 1) ret |= test(argv[1]); else for (i = 0; t[i]; i++) ret |= test(t[i]); return ret; # else int total = -1, unseen = -1; char *mbx = "imap4:user:pass@server/folder/file"; int ret = Mail_pop_imap(mbx, &total, &unseen); printf("ret = %d, total = %d unseen = %d\n", ret, total, unseen); return ret; # endif } #endif 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688