diplodocus.org Git - nmh/blob - uip/forw.c

   1 /* forw.c -- forward a message, or group of messages.
   2  *
   3  * This code is Copyright (c) 2002, by the authors of nmh.  See the
   4  * COPYRIGHT file in the root directory of the nmh distribution for
   5  * complete copyright information.
   6  */
   7
   8 #include <h/mh.h>
   9 #include "sbr/error.h"
  10 #include <fcntl.h>
  11 #include <h/tws.h>
  12 #include "h/done.h"
  13 #include <h/utils.h>
  14 #include "sbr/m_maildir.h"
  15 #include "forwsbr.h"
  16
  17
  18 #define IFORMAT "digest-issue-%s"
  19 #define VFORMAT "digest-volume-%s"
  20
  21 #define FORW_SWITCHES \
  22     X("annotate", 0, ANNOSW) \
  23     X("noannotate", 0, NANNOSW) \
  24     X("draftfolder +folder", 0, DFOLDSW) \
  25     X("draftmessage msg", 0, DMSGSW) \
  26     X("nodraftfolder", 0, NDFLDSW) \
  27     X("editor editor", 0, EDITRSW) \
  28     X("noedit", 0, NEDITSW) \
  29     X("filter filterfile", 0, FILTSW) \
  30     X("form formfile", 0, FORMSW) \
  31     X("format", 5, FRMTSW) \
  32     X("noformat", 7, NFRMTSW) \
  33     X("inplace", 0, INPLSW) \
  34     X("noinplace", 0, NINPLSW) \
  35     X("mime", 0, MIMESW) \
  36     X("nomime", 0, NMIMESW) \
  37     X("digest list", 0, DGSTSW) \
  38     X("issue number", 0, ISSUESW) \
  39     X("volume number", 0, VOLUMSW) \
  40     X("whatnowproc program", 0, WHATSW) \
  41     X("nowhatnowproc", 0, NWHATSW) \
  42     X("dashstuffing", 0, BITSTUFFSW)          /* interface to mhl */ \
  43     X("nodashstuffing", 0, NBITSTUFFSW) \
  44     X("version", 0, VERSIONSW) \
  45     X("help", 0, HELPSW) \
  46     X("file file", 4, FILESW) \
  47     X("build", 5, BILDSW)                     /* interface from mhe */ \
  48     X("from address", 0, FROMSW) \
  49     X("to address", 0, TOSW) \
  50     X("cc address", 0, CCSW) \
  51     X("subject text", 0, SUBJECTSW) \
  52     X("fcc mailbox", 0, FCCSW) \
  53     X("width columns", 0, WIDTHSW) \
  54
  55 #define X(sw, minchars, id) id,
  56 DEFINE_SWITCH_ENUM(FORW);
  57 #undef X
  58
  59 #define X(sw, minchars, id) { sw, minchars, id },
  60 DEFINE_SWITCH_ARRAY(FORW, switches);
  61 #undef X
  62
  63 #define DISPO_SWITCHES \
  64     X("quit", 0, NOSW) \
  65     X("replace", 0, YESW) \
  66     X("list", 0, LISTDSW) \
  67     X("refile +folder", 0, REFILSW) \
  68     X("new", 0, NEWSW) \
  69
  70 #define X(sw, minchars, id) id,
  71 DEFINE_SWITCH_ENUM(DISPO);
  72 #undef X
  73
  74 #define X(sw, minchars, id) { sw, minchars, id },
  75 DEFINE_SWITCH_ARRAY(DISPO, aqrnl);
  76 #undef X
  77
  78 static struct swit aqrl[] = {
  79     { "quit", 0, NOSW },
  80     { "replace", 0, YESW },
  81     { "list", 0, LISTDSW },
  82     { "refile +folder", 0, REFILSW },
  83     { NULL, 0, 0 }
  84 };
  85
  86 static char drft[BUFSIZ];
  87
  88 static char delim3[] =
  89     "\n------------------------------------------------------------\n\n";
  90 static char delim4[] = "\n------------------------------\n\n";
  91
  92
  93 static struct msgs *mp = NULL;          /* used a lot */
  94
  95
  96 /*
  97  * static prototypes
  98  */
  99 static void mhl_draft (int, char *, int, int, char *, char *, int);
 100 static void copy_draft (int, char *, char *, int, int, int);
 101 static void copy_mime_draft (int);
 102
 103
 104 int
 105 main (int argc, char **argv)
 106 {
 107     bool anot = false;
 108     bool inplace = true;
 109     bool mime = false;
 110     int issue = 0, volume = 0, dashstuff = 0;
 111     bool nedit = false;
 112     bool nwhat = false;
 113     int i, in;
 114     int out, isdf = 0, msgnum = 0;
 115     int outputlinelen = OUTPUTLINELEN;
 116     int dat[5];
 117     char *cp, *cwd, *maildir, *dfolder = NULL;
 118     char *dmsg = NULL, *digest = NULL, *ed = NULL;
 119     char *file = NULL, *filter = NULL, *folder = NULL, *fwdmsg = NULL;
 120     char *from = NULL, *to = NULL, *cc = NULL, *subject = NULL, *fcc = NULL;
 121     char *form = NULL, buf[BUFSIZ];
 122     char **argp, **arguments;
 123     struct stat st;
 124     struct msgs_array msgs = { 0, 0, NULL };
 125     bool buildsw = false;
 126
 127     if (nmh_init(argv[0], true, true)) { return 1; }
 128
 129     arguments = getarguments (invo_name, argc, argv, 1);
 130     argp = arguments;
 131
 132     while ((cp = *argp++)) {
 133         if (*cp == '-') {
 134             switch (smatch (++cp, switches)) {
 135                 case AMBIGSW:
 136                     ambigsw (cp, switches);
 137                     done (1);
 138                 case UNKWNSW:
 139                     die("-%s unknown", cp);
 140
 141                 case HELPSW:
 142                     snprintf (buf, sizeof(buf), "%s [+folder] [msgs] [switches]",
 143                         invo_name);
 144                     print_help (buf, switches, 1);
 145                     done (0);
 146                 case VERSIONSW:
 147                     print_version(invo_name);
 148                     done (0);
 149
 150                 case ANNOSW:
 151                     anot = true;
 152                     continue;
 153                 case NANNOSW:
 154                     anot = false;
 155                     continue;
 156
 157                 case EDITRSW:
 158                     if (!(ed = *argp++) || *ed == '-')
 159                         die("missing argument to %s", argp[-2]);
 160                     nedit = false;
 161                     continue;
 162                 case NEDITSW:
 163                     nedit = true;
 164                     continue;
 165
 166                 case WHATSW:
 167                     if (!(whatnowproc = *argp++) || *whatnowproc == '-')
 168                         die("missing argument to %s", argp[-2]);
 169                     nwhat = false;
 170                     continue;
 171                 case BILDSW:
 172                     buildsw = true;
 173                     /* FALLTHRU */
 174                 case NWHATSW:
 175                     nwhat = true;
 176                     continue;
 177
 178                 case FILESW:
 179                     if (file)
 180                         die("only one file at a time!");
 181                     if (!(cp = *argp++) || *cp == '-')
 182                         die("missing argument to %s", argp[-2]);
 183                     file = path (cp, TFILE);
 184                     continue;
 185                 case FILTSW:
 186                     if (!(cp = *argp++) || *cp == '-')
 187                         die("missing argument to %s", argp[-2]);
 188                     filter = mh_xstrdup(etcpath(cp));
 189                     mime = false;
 190                     continue;
 191                 case FORMSW:
 192                     if (!(form = *argp++) || *form == '-')
 193                         die("missing argument to %s", argp[-2]);
 194                     continue;
 195
 196                 case FRMTSW:
 197                     filter = mh_xstrdup(etcpath(mhlforward));
 198                     continue;
 199                 case NFRMTSW:
 200                     filter = NULL;
 201                     continue;
 202
 203                 case INPLSW:
 204                     inplace = true;
 205                     continue;
 206                 case NINPLSW:
 207                     inplace = false;
 208                     continue;
 209
 210                 case MIMESW:
 211                     mime = true;
 212                     filter = NULL;
 213                     continue;
 214                 case NMIMESW:
 215                     mime = false;
 216                     continue;
 217
 218                 case DGSTSW:
 219                     if (!(cp = *argp++) || *cp == '-')
 220                         die("missing argument to %s", argp[-2]);
 221                     digest = mh_xstrdup(cp);
 222                     mime = false;
 223                     continue;
 224                 case ISSUESW:
 225                     if (!(cp = *argp++) || *cp == '-')
 226                         die("missing argument to %s", argp[-2]);
 227                     if ((issue = atoi (cp)) < 1)
 228                         die("bad argument %s %s", argp[-2], cp);
 229                     continue;
 230                 case VOLUMSW:
 231                     if (!(cp = *argp++) || *cp == '-')
 232                         die("missing argument to %s", argp[-2]);
 233                     if ((volume = atoi (cp)) < 1)
 234                         die("bad argument %s %s", argp[-2], cp);
 235                     continue;
 236
 237                 case DFOLDSW:
 238                     if (dfolder)
 239                         die("only one draft folder at a time!");
 240                     if (!(cp = *argp++) || *cp == '-')
 241                         die("missing argument to %s", argp[-2]);
 242                     dfolder = path (*cp == '+' || *cp == '@' ? cp + 1 : cp,
 243                                     *cp != '@' ? TFOLDER : TSUBCWF);
 244                     continue;
 245                 case DMSGSW:
 246                     if (dmsg)
 247                         die("only one draft message at a time!");
 248                     if (!(dmsg = *argp++) || *dmsg == '-')
 249                         die("missing argument to %s", argp[-2]);
 250                     continue;
 251                 case NDFLDSW:
 252                     dfolder = NULL;
 253                     isdf = NOTOK;
 254                     continue;
 255
 256                 case BITSTUFFSW:
 257                     dashstuff = 1;      /* ternary logic */
 258                     continue;
 259                 case NBITSTUFFSW:
 260                     dashstuff = -1;     /* ternary logic */
 261                     continue;
 262
 263                 case FROMSW:
 264                     if (!(cp = *argp++) || *cp == '-')
 265                         die("missing argument to %s", argp[-2]);
 266                     from = addlist(from, cp);
 267                     continue;
 268                 case TOSW:
 269                     if (!(cp = *argp++) || *cp == '-')
 270                         die("missing argument to %s", argp[-2]);
 271                     to = addlist(to, cp);
 272                     continue;
 273                 case CCSW:
 274                     if (!(cp = *argp++) || *cp == '-')
 275                         die("missing argument to %s", argp[-2]);
 276                     cc = addlist(cc, cp);
 277                     continue;
 278                 case FCCSW:
 279                     if (!(cp = *argp++) || *cp == '-')
 280                         die("missing argument to %s", argp[-2]);
 281                     fcc = addlist(fcc, cp);
 282                     continue;
 283                 case SUBJECTSW:
 284                     if (!(cp = *argp++) || *cp == '-')
 285                         die("missing argument to %s", argp[-2]);
 286                     subject = mh_xstrdup(cp);
 287                     continue;
 288
 289                 case WIDTHSW:
 290                     if (!(cp = *argp++) || *cp == '-')
 291                         die("missing argument to %s", argp[-2]);
 292                     if ((outputlinelen = atoi(cp)) < 10)
 293                         die("impossible width %d", outputlinelen);
 294                     continue;
 295             }
 296         }
 297         if (*cp == '+' || *cp == '@') {
 298             if (folder)
 299                 die("only one folder at a time!");
 300             folder = pluspath (cp);
 301         } else {
 302             app_msgarg(&msgs, cp);
 303         }
 304     }
 305
 306     cwd = mh_xstrdup(pwd ());
 307
 308     if (!context_find ("path"))
 309         free (path ("./", TFOLDER));
 310     if (file && (msgs.size || folder))
 311         die("can't mix files and folders/msgs");
 312
 313 try_it_again:
 314
 315     strncpy (drft, buildsw ? m_maildir ("draft")
 316                           : m_draft (dfolder, NULL, NOUSE, &isdf), sizeof(drft));
 317
 318     /* Check if a draft already exists */
 319     if (!buildsw && stat (drft, &st) != NOTOK) {
 320         printf ("Draft \"%s\" exists (%ld bytes).", drft, (long) st.st_size);
 321         for (i = LISTDSW; i != YESW;) {
 322             if (!(argp = read_switch_multiword ("\nDisposition? ",
 323                                                 isdf ? aqrnl : aqrl)))
 324                 done (1);
 325             switch (i = smatch (*argp, isdf ? aqrnl : aqrl)) {
 326                 case NOSW:
 327                     done (0);
 328                 case NEWSW:
 329                     dmsg = NULL;
 330                     goto try_it_again;
 331                 case YESW:
 332                     break;
 333                 case LISTDSW:
 334                     showfile (++argp, drft);
 335                     break;
 336                 case REFILSW:
 337                     if (refile (++argp, drft) == 0)
 338                         i = YESW;
 339                     break;
 340                 default:
 341                     inform("say what?");
 342                     break;
 343             }
 344         }
 345     }
 346
 347     if (file) {
 348         /*
 349          * Forwarding a file.
 350          */
 351         anot = false;   /* don't want to annotate a file */
 352     } else {
 353         /*
 354          * Forwarding a message.
 355          */
 356         if (!msgs.size)
 357             app_msgarg(&msgs, "cur");
 358         if (!folder)
 359             folder = getfolder (1);
 360         maildir = m_maildir (folder);
 361
 362         if (chdir (maildir) == NOTOK)
 363             adios (maildir, "unable to change directory to");
 364
 365         /* read folder and create message structure */
 366         if (!(mp = folder_read (folder, 1)))
 367             die("unable to read folder %s", folder);
 368
 369         /* check for empty folder */
 370         if (mp->nummsg == 0)
 371             die("no messages in %s", folder);
 372
 373         /* parse all the message ranges/sequences and set SELECTED */
 374         for (msgnum = 0; msgnum < msgs.size; msgnum++)
 375             if (!m_convert (mp, msgs.msgs[msgnum]))
 376                 done (1);
 377
 378         seq_setprev (mp);       /* set the previous sequence */
 379
 380         /*
 381          * Find the first message in our set and use it as the input
 382          * for the component scanner
 383          */
 384
 385         for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++)
 386             if (is_selected (mp, msgnum)) {
 387                 fwdmsg = mh_xstrdup(m_name(msgnum));
 388                 break;
 389             }
 390
 391         if (! fwdmsg)
 392             die("Unable to find input message");
 393     }
 394
 395     if (filter && access (filter, R_OK) == NOTOK)
 396         adios (filter, "unable to read");
 397
 398     /*
 399      * Open form (component) file.
 400      */
 401     if (digest) {
 402         if (issue == 0) {
 403             snprintf (buf, sizeof(buf), IFORMAT, digest);
 404             if (volume == 0
 405                     && (cp = context_find (buf))
 406                     && ((issue = atoi (cp)) < 0))
 407                 issue = 0;
 408             issue++;
 409         }
 410         if (volume == 0) {
 411             snprintf (buf, sizeof(buf), VFORMAT, digest);
 412             if ((cp = context_find (buf)) == NULL || (volume = atoi (cp)) <= 0)
 413                 volume = 1;
 414         }
 415         if (!form)
 416             form = digestcomps;
 417     } else {
 418         if (!form)
 419             form = forwcomps;
 420     }
 421
 422     dat[0] = digest ? issue : msgnum;
 423     dat[1] = volume;
 424     dat[2] = 0;
 425     dat[3] = outputlinelen;
 426     dat[4] = 0;
 427
 428
 429     in = build_form (form, digest, dat, from, to, cc, fcc, subject,
 430                      file ? file : fwdmsg);
 431
 432     if ((out = creat (drft, m_gmprot ())) == NOTOK)
 433         adios (drft, "unable to create");
 434
 435     /*
 436      * copy the components into the draft
 437      */
 438     cpydata (in, out, form, drft);
 439     close (in);
 440
 441     if (file) {
 442         /* just copy the file into the draft */
 443         if ((in = open (file, O_RDONLY)) == NOTOK)
 444             adios (file, "unable to open");
 445         cpydata (in, out, file, drft);
 446         close (in);
 447         close (out);
 448     } else {
 449         /*
 450          * If filter file is defined, then format the
 451          * messages into the draft using mhlproc.
 452          */
 453         if (filter)
 454             mhl_draft (out, digest, volume, issue, drft, filter, dashstuff);
 455         else if (mime)
 456             copy_mime_draft (out);
 457         else
 458             copy_draft (out, digest, drft, volume, issue, dashstuff);
 459         close (out);
 460
 461         if (digest) {
 462             snprintf (buf, sizeof(buf), IFORMAT, digest);
 463             context_replace (buf, mh_xstrdup(m_str(issue)));
 464             snprintf (buf, sizeof(buf), VFORMAT, digest);
 465             context_replace (buf, mh_xstrdup(m_str(volume)));
 466         }
 467
 468         context_replace (pfolder, folder);      /* update current folder   */
 469         seq_setcur (mp, mp->lowsel);            /* update current message  */
 470         seq_save (mp);                          /* synchronize sequences   */
 471         context_save ();                        /* save the context file   */
 472     }
 473
 474     if (nwhat)
 475         done (0);
 476     what_now (ed, nedit, NOUSE, drft, NULL, 0, mp,
 477         anot ? "Forwarded" : NULL, inplace, cwd, 0);
 478     done (1);
 479     return 1;
 480 }
 481
 482
 483 /*
 484  * Filter the messages you are forwarding, into the
 485  * draft calling the mhlproc, and reading its output
 486  * from a pipe.
 487  */
 488
 489 static void
 490 mhl_draft (int out, char *digest, int volume, int issue,
 491             char *file, char *filter, int dashstuff)
 492 {
 493     pid_t child_id;
 494     int msgnum, pd[2];
 495     char buf1[BUFSIZ];
 496     char buf2[BUFSIZ];
 497     char *program;
 498     struct msgs_array vec = { 0, 0, NULL };
 499
 500     if (pipe (pd) == NOTOK)
 501         adios ("pipe", "unable to create");
 502
 503     argsplit_msgarg(&vec, mhlproc, &program);
 504
 505     child_id = fork();
 506     switch (child_id) {
 507         case NOTOK:
 508             adios ("fork", "unable to");
 509
 510         case OK:
 511             close (pd[0]);
 512             dup2 (pd[1], 1);
 513             close (pd[1]);
 514
 515             app_msgarg(&vec, "-forwall");
 516             app_msgarg(&vec, "-form");
 517             app_msgarg(&vec, filter);
 518
 519             if (digest) {
 520                 app_msgarg(&vec, "-digest");
 521                 app_msgarg(&vec, digest);
 522                 app_msgarg(&vec, "-issue");
 523                 snprintf (buf1, sizeof(buf1), "%d", issue);
 524                 app_msgarg(&vec, buf1);
 525                 app_msgarg(&vec, "-volume");
 526                 snprintf (buf2, sizeof(buf2), "%d", volume);
 527                 app_msgarg(&vec, buf2);
 528             }
 529
 530             /*
 531              * Are we dashstuffing (quoting) the lines that begin
 532              * with `-'.  We use the mhl default (don't add any flag)
 533              * unless the user has specified a specific flag.
 534              */
 535             if (dashstuff > 0)
 536                 app_msgarg(&vec, "-dashstuffing");
 537             else if (dashstuff < 0)
 538                 app_msgarg(&vec, "-nodashstuffing");
 539
 540             for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++) {
 541                 if (is_selected (mp, msgnum))
 542                     app_msgarg(&vec, mh_xstrdup(m_name (msgnum)));
 543             }
 544
 545             app_msgarg(&vec, NULL);
 546
 547             execvp (program, vec.msgs);
 548             fprintf (stderr, "unable to exec ");
 549             perror (mhlproc);
 550             _exit(1);
 551
 552         default:
 553             close (pd[1]);
 554             cpydata (pd[0], out, vec.msgs[0], file);
 555             close (pd[0]);
 556             pidXwait(child_id, mhlproc);
 557             break;
 558     }
 559 }
 560
 561
 562 /*
 563  * Copy the messages into the draft.  The messages are
 564  * not filtered through the mhlproc.  Do dashstuffing if
 565  * necessary.
 566  */
 567
 568 static void
 569 copy_draft (int out, char *digest, char *file, int volume, int issue, int dashstuff)
 570 {
 571     int fd,i, msgcnt, msgnum;
 572     int len, buflen;
 573     char *bp, *msgnam;
 574     char buffer[BUFSIZ];
 575
 576     msgcnt = 1;
 577     for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++) {
 578         if (is_selected (mp, msgnum)) {
 579             if (digest) {
 580                 strncpy (buffer, msgnum == mp->lowsel ? delim3 : delim4,
 581                         sizeof(buffer));
 582             } else {
 583                 /* Get buffer ready to go */
 584                 bp = buffer;
 585                 buflen = sizeof(buffer);
 586
 587                 strncpy (bp, "\n-------", buflen);
 588                 len = strlen (bp);
 589                 bp += len;
 590                 buflen -= len;
 591
 592                 if (msgnum == mp->lowsel) {
 593                     snprintf (bp, buflen, " Forwarded Message%s",
 594                         PLURALS(mp->numsel));
 595                 } else {
 596                     snprintf (bp, buflen, " Message %d", msgcnt);
 597                 }
 598                 len = strlen (bp);
 599                 bp += len;
 600                 buflen -= len;
 601
 602                 strncpy (bp, "\n\n", buflen);
 603             }
 604             if (write (out, buffer, strlen (buffer)) < 0) {
 605                 advise (drft, "write");
 606             }
 607
 608             if ((fd = open (msgnam = m_name (msgnum), O_RDONLY)) == NOTOK) {
 609                 admonish (msgnam, "unable to read message");
 610                 continue;
 611             }
 612
 613             /*
 614              * Copy the message.  Add RFC934 quoting (dashstuffing)
 615              * unless given the -nodashstuffing flag.
 616              */
 617             if (dashstuff >= 0)
 618                 cpydgst (fd, out, msgnam, file);
 619             else
 620                 cpydata (fd, out, msgnam, file);
 621
 622             close (fd);
 623             msgcnt++;
 624         }
 625     }
 626
 627     if (digest) {
 628         strncpy (buffer, delim4, sizeof(buffer));
 629     } else {
 630         snprintf (buffer, sizeof(buffer), "\n------- End of Forwarded Message%s\n",
 631                 PLURALS(mp->numsel));
 632     }
 633     if (write (out, buffer, strlen (buffer)) < 0) {
 634         advise (drft, "write");
 635     }
 636
 637     if (digest) {
 638         snprintf (buffer, sizeof(buffer), "End of %s Digest [Volume %d Issue %d]\n",
 639                 digest, volume, issue);
 640         i = strlen (buffer);
 641         for (bp = buffer + i; i > 1; i--)
 642             *bp++ = '*';
 643         *bp++ = '\n';
 644         *bp = 0;
 645         if (write (out, buffer, strlen (buffer)) < 0) {
 646             advise (drft, "write");
 647         }
 648     }
 649 }
 650
 651
 652 /*
 653  * Create a mhn composition file for forwarding message.
 654  */
 655
 656 static void
 657 copy_mime_draft (int out)
 658 {
 659     int msgnum;
 660     char buffer[BUFSIZ];
 661
 662     snprintf (buffer, sizeof(buffer), "#forw [forwarded message%s] +%s",
 663         PLURALS(mp->numsel), mp->foldpath);
 664     if (write (out, buffer, strlen (buffer)) < 0) {
 665         advise (drft, "write");
 666     }
 667     for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++)
 668         if (is_selected (mp, msgnum)) {
 669             snprintf (buffer, sizeof(buffer), " %s", m_name (msgnum));
 670             if (write (out, buffer, strlen (buffer)) < 0) {
 671                 advise (drft, "write");
 672             }
 673         }
 674     if (write (out, "\n", 1) < 0) {
 675         advise (drft, "write newline");
 676     }
 677 }