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/print_help.h"
  10 #include "sbr/arglist.h"
  11 #include "sbr/error.h"
  12 #include <fcntl.h>
  13 #include "h/tws.h"
  14 #include "h/done.h"
  15 #include "h/utils.h"
  16 #include "sbr/m_maildir.h"
  17 #include "forwsbr.h"
  18
  19
  20 #define IFORMAT "digest-issue-%s"
  21 #define VFORMAT "digest-volume-%s"
  22
  23 #define FORW_SWITCHES \
  24     X("annotate", 0, ANNOSW) \
  25     X("noannotate", 0, NANNOSW) \
  26     X("draftfolder +folder", 0, DFOLDSW) \
  27     X("draftmessage msg", 0, DMSGSW) \
  28     X("nodraftfolder", 0, NDFLDSW) \
  29     X("editor editor", 0, EDITRSW) \
  30     X("noedit", 0, NEDITSW) \
  31     X("filter filterfile", 0, FILTSW) \
  32     X("form formfile", 0, FORMSW) \
  33     X("format", 5, FRMTSW) \
  34     X("noformat", 7, NFRMTSW) \
  35     X("inplace", 0, INPLSW) \
  36     X("noinplace", 0, NINPLSW) \
  37     X("mime", 0, MIMESW) \
  38     X("nomime", 0, NMIMESW) \
  39     X("digest list", 0, DGSTSW) \
  40     X("issue number", 0, ISSUESW) \
  41     X("volume number", 0, VOLUMSW) \
  42     X("whatnowproc program", 0, WHATSW) \
  43     X("nowhatnowproc", 0, NWHATSW) \
  44     X("dashstuffing", 0, BITSTUFFSW)          /* interface to mhl */ \
  45     X("nodashstuffing", 0, NBITSTUFFSW) \
  46     X("version", 0, VERSIONSW) \
  47     X("help", 0, HELPSW) \
  48     X("file file", 4, FILESW) \
  49     X("build", 5, BILDSW)                     /* interface from mhe */ \
  50     X("from address", 0, FROMSW) \
  51     X("to address", 0, TOSW) \
  52     X("cc address", 0, CCSW) \
  53     X("subject text", 0, SUBJECTSW) \
  54     X("fcc mailbox", 0, FCCSW) \
  55     X("width columns", 0, WIDTHSW) \
  56
  57 #define X(sw, minchars, id) id,
  58 DEFINE_SWITCH_ENUM(FORW);
  59 #undef X
  60
  61 #define X(sw, minchars, id) { sw, minchars, id },
  62 DEFINE_SWITCH_ARRAY(FORW, switches);
  63 #undef X
  64
  65 #define DISPO_SWITCHES \
  66     X("quit", 0, NOSW) \
  67     X("replace", 0, YESW) \
  68     X("list", 0, LISTDSW) \
  69     X("refile +folder", 0, REFILSW) \
  70     X("new", 0, NEWSW) \
  71
  72 #define X(sw, minchars, id) id,
  73 DEFINE_SWITCH_ENUM(DISPO);
  74 #undef X
  75
  76 #define X(sw, minchars, id) { sw, minchars, id },
  77 DEFINE_SWITCH_ARRAY(DISPO, aqrnl);
  78 #undef X
  79
  80 static struct swit aqrl[] = {
  81     { "quit", 0, NOSW },
  82     { "replace", 0, YESW },
  83     { "list", 0, LISTDSW },
  84     { "refile +folder", 0, REFILSW },
  85     { NULL, 0, 0 }
  86 };
  87
  88 static char drft[BUFSIZ];
  89
  90 static char delim3[] =
  91     "\n------------------------------------------------------------\n\n";
  92 static char delim4[] = "\n------------------------------\n\n";
  93
  94
  95 static struct msgs *mp = NULL;          /* used a lot */
  96
  97
  98 /*
  99  * static prototypes
 100  */
 101 static void mhl_draft (int, char *, int, int, char *, char *, int);
 102 static void copy_draft (int, char *, char *, int, int, int);
 103 static void copy_mime_draft (int);
 104
 105
 106 int
 107 main (int argc, char **argv)
 108 {
 109     bool anot = false;
 110     bool inplace = true;
 111     bool mime = false;
 112     int issue = 0, volume = 0, dashstuff = 0;
 113     bool nedit = false;
 114     bool nwhat = false;
 115     int i, in;
 116     int out, isdf = 0, msgnum = 0;
 117     int outputlinelen = OUTPUTLINELEN;
 118     int dat[5];
 119     char *cp, *cwd, *maildir, *dfolder = NULL;
 120     char *dmsg = NULL, *digest = NULL, *ed = NULL;
 121     char *file = NULL, *filter = NULL, *folder = NULL, *fwdmsg = NULL;
 122     char *from = NULL, *to = NULL, *cc = NULL, *subject = NULL, *fcc = NULL;
 123     char *form = NULL, buf[BUFSIZ];
 124     char **argp, **arguments;
 125     struct stat st;
 126     struct msgs_array msgs = { 0, 0, NULL };
 127     bool buildsw = false;
 128
 129     if (nmh_init(argv[0], true, true)) { return 1; }
 130
 131     arguments = getarguments (invo_name, argc, argv, 1);
 132     argp = arguments;
 133
 134     while ((cp = *argp++)) {
 135         if (*cp == '-') {
 136             switch (smatch (++cp, switches)) {
 137                 case AMBIGSW:
 138                     ambigsw (cp, switches);
 139                     done (1);
 140                 case UNKWNSW:
 141                     die("-%s unknown", cp);
 142
 143                 case HELPSW:
 144                     snprintf (buf, sizeof(buf), "%s [+folder] [msgs] [switches]",
 145                         invo_name);
 146                     print_help (buf, switches, 1);
 147                     done (0);
 148                 case VERSIONSW:
 149                     print_version(invo_name);
 150                     done (0);
 151
 152                 case ANNOSW:
 153                     anot = true;
 154                     continue;
 155                 case NANNOSW:
 156                     anot = false;
 157                     continue;
 158
 159                 case EDITRSW:
 160                     if (!(ed = *argp++) || *ed == '-')
 161                         die("missing argument to %s", argp[-2]);
 162                     nedit = false;
 163                     continue;
 164                 case NEDITSW:
 165                     nedit = true;
 166                     continue;
 167
 168                 case WHATSW:
 169                     if (!(whatnowproc = *argp++) || *whatnowproc == '-')
 170                         die("missing argument to %s", argp[-2]);
 171                     nwhat = false;
 172                     continue;
 173                 case BILDSW:
 174                     buildsw = true;
 175                     /* FALLTHRU */
 176                 case NWHATSW:
 177                     nwhat = true;
 178                     continue;
 179
 180                 case FILESW:
 181                     if (file)
 182                         die("only one file at a time!");
 183                     if (!(cp = *argp++) || *cp == '-')
 184                         die("missing argument to %s", argp[-2]);
 185                     file = path (cp, TFILE);
 186                     continue;
 187                 case FILTSW:
 188                     if (!(cp = *argp++) || *cp == '-')
 189                         die("missing argument to %s", argp[-2]);
 190                     filter = mh_xstrdup(etcpath(cp));
 191                     mime = false;
 192                     continue;
 193                 case FORMSW:
 194                     if (!(form = *argp++) || *form == '-')
 195                         die("missing argument to %s", argp[-2]);
 196                     continue;
 197
 198                 case FRMTSW:
 199                     filter = mh_xstrdup(etcpath(mhlforward));
 200                     continue;
 201                 case NFRMTSW:
 202                     filter = NULL;
 203                     continue;
 204
 205                 case INPLSW:
 206                     inplace = true;
 207                     continue;
 208                 case NINPLSW:
 209                     inplace = false;
 210                     continue;
 211
 212                 case MIMESW:
 213                     mime = true;
 214                     filter = NULL;
 215                     continue;
 216                 case NMIMESW:
 217                     mime = false;
 218                     continue;
 219
 220                 case DGSTSW:
 221                     if (!(cp = *argp++) || *cp == '-')
 222                         die("missing argument to %s", argp[-2]);
 223                     digest = mh_xstrdup(cp);
 224                     mime = false;
 225                     continue;
 226                 case ISSUESW:
 227                     if (!(cp = *argp++) || *cp == '-')
 228                         die("missing argument to %s", argp[-2]);
 229                     if ((issue = atoi (cp)) < 1)
 230                         die("bad argument %s %s", argp[-2], cp);
 231                     continue;
 232                 case VOLUMSW:
 233                     if (!(cp = *argp++) || *cp == '-')
 234                         die("missing argument to %s", argp[-2]);
 235                     if ((volume = atoi (cp)) < 1)
 236                         die("bad argument %s %s", argp[-2], cp);
 237                     continue;
 238
 239                 case DFOLDSW:
 240                     if (dfolder)
 241                         die("only one draft folder at a time!");
 242                     if (!(cp = *argp++) || *cp == '-')
 243                         die("missing argument to %s", argp[-2]);
 244                     dfolder = path (*cp == '+' || *cp == '@' ? cp + 1 : cp,
 245                                     *cp != '@' ? TFOLDER : TSUBCWF);
 246                     continue;
 247                 case DMSGSW:
 248                     if (dmsg)
 249                         die("only one draft message at a time!");
 250                     if (!(dmsg = *argp++) || *dmsg == '-')
 251                         die("missing argument to %s", argp[-2]);
 252                     continue;
 253                 case NDFLDSW:
 254                     dfolder = NULL;
 255                     isdf = NOTOK;
 256                     continue;
 257
 258                 case BITSTUFFSW:
 259                     dashstuff = 1;      /* ternary logic */
 260                     continue;
 261                 case NBITSTUFFSW:
 262                     dashstuff = -1;     /* ternary logic */
 263                     continue;
 264
 265                 case FROMSW:
 266                     if (!(cp = *argp++) || *cp == '-')
 267                         die("missing argument to %s", argp[-2]);
 268                     from = addlist(from, cp);
 269                     continue;
 270                 case TOSW:
 271                     if (!(cp = *argp++) || *cp == '-')
 272                         die("missing argument to %s", argp[-2]);
 273                     to = addlist(to, cp);
 274                     continue;
 275                 case CCSW:
 276                     if (!(cp = *argp++) || *cp == '-')
 277                         die("missing argument to %s", argp[-2]);
 278                     cc = addlist(cc, cp);
 279                     continue;
 280                 case FCCSW:
 281                     if (!(cp = *argp++) || *cp == '-')
 282                         die("missing argument to %s", argp[-2]);
 283                     fcc = addlist(fcc, cp);
 284                     continue;
 285                 case SUBJECTSW:
 286                     if (!(cp = *argp++) || *cp == '-')
 287                         die("missing argument to %s", argp[-2]);
 288                     subject = mh_xstrdup(cp);
 289                     continue;
 290
 291                 case WIDTHSW:
 292                     if (!(cp = *argp++) || *cp == '-')
 293                         die("missing argument to %s", argp[-2]);
 294                     if ((outputlinelen = atoi(cp)) < 10)
 295                         die("impossible width %d", outputlinelen);
 296                     continue;
 297             }
 298         }
 299         if (*cp == '+' || *cp == '@') {
 300             if (folder)
 301                 die("only one folder at a time!");
 302             folder = pluspath (cp);
 303         } else {
 304             app_msgarg(&msgs, cp);
 305         }
 306     }
 307
 308     cwd = mh_xstrdup(pwd ());
 309
 310     if (!context_find ("path"))
 311         free (path ("./", TFOLDER));
 312     if (file && (msgs.size || folder))
 313         die("can't mix files and folders/msgs");
 314
 315 try_it_again:
 316
 317     strncpy (drft, buildsw ? m_maildir ("draft")
 318                           : m_draft (dfolder, NULL, NOUSE, &isdf), sizeof(drft));
 319
 320     /* Check if a draft already exists */
 321     if (!buildsw && stat (drft, &st) != NOTOK) {
 322         printf ("Draft \"%s\" exists (%ld bytes).", drft, (long) st.st_size);
 323         for (i = LISTDSW; i != YESW;) {
 324             if (!(argp = read_switch_multiword ("\nDisposition? ",
 325                                                 isdf ? aqrnl : aqrl)))
 326                 done (1);
 327             switch (i = smatch (*argp, isdf ? aqrnl : aqrl)) {
 328                 case NOSW:
 329                     done (0);
 330                 case NEWSW:
 331                     dmsg = NULL;
 332                     goto try_it_again;
 333                 case YESW:
 334                     break;
 335                 case LISTDSW:
 336                     showfile (++argp, drft);
 337                     break;
 338                 case REFILSW:
 339                     if (refile (++argp, drft) == 0)
 340                         i = YESW;
 341                     break;
 342                 default:
 343                     inform("say what?");
 344                     break;
 345             }
 346         }
 347     }
 348
 349     if (file) {
 350         /*
 351          * Forwarding a file.
 352          */
 353         anot = false;   /* don't want to annotate a file */
 354     } else {
 355         /*
 356          * Forwarding a message.
 357          */
 358         if (!msgs.size)
 359             app_msgarg(&msgs, "cur");
 360         if (!folder)
 361             folder = getfolder (1);
 362         maildir = m_maildir (folder);
 363
 364         if (chdir (maildir) == NOTOK)
 365             adios (maildir, "unable to change directory to");
 366
 367         /* read folder and create message structure */
 368         if (!(mp = folder_read (folder, 1)))
 369             die("unable to read folder %s", folder);
 370
 371         /* check for empty folder */
 372         if (mp->nummsg == 0)
 373             die("no messages in %s", folder);
 374
 375         /* parse all the message ranges/sequences and set SELECTED */
 376         for (msgnum = 0; msgnum < msgs.size; msgnum++)
 377             if (!m_convert (mp, msgs.msgs[msgnum]))
 378                 done (1);
 379
 380         seq_setprev (mp);       /* set the previous sequence */
 381
 382         /*
 383          * Find the first message in our set and use it as the input
 384          * for the component scanner
 385          */
 386
 387         for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++)
 388             if (is_selected (mp, msgnum)) {
 389                 fwdmsg = mh_xstrdup(m_name(msgnum));
 390                 break;
 391             }
 392
 393         if (! fwdmsg)
 394             die("Unable to find input message");
 395     }
 396
 397     if (filter && access (filter, R_OK) == NOTOK)
 398         adios (filter, "unable to read");
 399
 400     /*
 401      * Open form (component) file.
 402      */
 403     if (digest) {
 404         if (issue == 0) {
 405             snprintf (buf, sizeof(buf), IFORMAT, digest);
 406             if (volume == 0
 407                     && (cp = context_find (buf))
 408                     && ((issue = atoi (cp)) < 0))
 409                 issue = 0;
 410             issue++;
 411         }
 412         if (volume == 0) {
 413             snprintf (buf, sizeof(buf), VFORMAT, digest);
 414             if ((cp = context_find (buf)) == NULL || (volume = atoi (cp)) <= 0)
 415                 volume = 1;
 416         }
 417         if (!form)
 418             form = digestcomps;
 419     } else {
 420         if (!form)
 421             form = forwcomps;
 422     }
 423
 424     dat[0] = digest ? issue : msgnum;
 425     dat[1] = volume;
 426     dat[2] = 0;
 427     dat[3] = outputlinelen;
 428     dat[4] = 0;
 429
 430
 431     in = build_form (form, digest, dat, from, to, cc, fcc, subject,
 432                      file ? file : fwdmsg);
 433
 434     if ((out = creat (drft, m_gmprot ())) == NOTOK)
 435         adios (drft, "unable to create");
 436
 437     /*
 438      * copy the components into the draft
 439      */
 440     cpydata (in, out, form, drft);
 441     close (in);
 442
 443     if (file) {
 444         /* just copy the file into the draft */
 445         if ((in = open (file, O_RDONLY)) == NOTOK)
 446             adios (file, "unable to open");
 447         cpydata (in, out, file, drft);
 448         close (in);
 449         close (out);
 450     } else {
 451         /*
 452          * If filter file is defined, then format the
 453          * messages into the draft using mhlproc.
 454          */
 455         if (filter)
 456             mhl_draft (out, digest, volume, issue, drft, filter, dashstuff);
 457         else if (mime)
 458             copy_mime_draft (out);
 459         else
 460             copy_draft (out, digest, drft, volume, issue, dashstuff);
 461         close (out);
 462
 463         if (digest) {
 464             snprintf (buf, sizeof(buf), IFORMAT, digest);
 465             context_replace (buf, mh_xstrdup(m_str(issue)));
 466             snprintf (buf, sizeof(buf), VFORMAT, digest);
 467             context_replace (buf, mh_xstrdup(m_str(volume)));
 468         }
 469
 470         context_replace (pfolder, folder);      /* update current folder   */
 471         seq_setcur (mp, mp->lowsel);            /* update current message  */
 472         seq_save (mp);                          /* synchronize sequences   */
 473         context_save ();                        /* save the context file   */
 474     }
 475
 476     if (nwhat)
 477         done (0);
 478     what_now (ed, nedit, NOUSE, drft, NULL, 0, mp,
 479         anot ? "Forwarded" : NULL, inplace, cwd, 0);
 480     done (1);
 481     return 1;
 482 }
 483
 484
 485 /*
 486  * Filter the messages you are forwarding, into the
 487  * draft calling the mhlproc, and reading its output
 488  * from a pipe.
 489  */
 490
 491 static void
 492 mhl_draft (int out, char *digest, int volume, int issue,
 493             char *file, char *filter, int dashstuff)
 494 {
 495     pid_t child_id;
 496     int msgnum, pd[2];
 497     char buf1[BUFSIZ];
 498     char buf2[BUFSIZ];
 499     char *program;
 500     struct msgs_array vec = { 0, 0, NULL };
 501
 502     if (pipe (pd) == NOTOK)
 503         adios ("pipe", "unable to create");
 504
 505     argsplit_msgarg(&vec, mhlproc, &program);
 506
 507     child_id = fork();
 508     switch (child_id) {
 509         case NOTOK:
 510             adios ("fork", "unable to");
 511
 512         case OK:
 513             close (pd[0]);
 514             dup2 (pd[1], 1);
 515             close (pd[1]);
 516
 517             app_msgarg(&vec, "-forwall");
 518             app_msgarg(&vec, "-form");
 519             app_msgarg(&vec, filter);
 520
 521             if (digest) {
 522                 app_msgarg(&vec, "-digest");
 523                 app_msgarg(&vec, digest);
 524                 app_msgarg(&vec, "-issue");
 525                 snprintf (buf1, sizeof(buf1), "%d", issue);
 526                 app_msgarg(&vec, buf1);
 527                 app_msgarg(&vec, "-volume");
 528                 snprintf (buf2, sizeof(buf2), "%d", volume);
 529                 app_msgarg(&vec, buf2);
 530             }
 531
 532             /*
 533              * Are we dashstuffing (quoting) the lines that begin
 534              * with `-'.  We use the mhl default (don't add any flag)
 535              * unless the user has specified a specific flag.
 536              */
 537             if (dashstuff > 0)
 538                 app_msgarg(&vec, "-dashstuffing");
 539             else if (dashstuff < 0)
 540                 app_msgarg(&vec, "-nodashstuffing");
 541
 542             for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++) {
 543                 if (is_selected (mp, msgnum))
 544                     app_msgarg(&vec, mh_xstrdup(m_name (msgnum)));
 545             }
 546
 547             app_msgarg(&vec, NULL);
 548
 549             execvp (program, vec.msgs);
 550             fprintf (stderr, "unable to exec ");
 551             perror (mhlproc);
 552             _exit(1);
 553
 554         default:
 555             close (pd[1]);
 556             cpydata (pd[0], out, vec.msgs[0], file);
 557             close (pd[0]);
 558             pidXwait(child_id, mhlproc);
 559             break;
 560     }
 561 }
 562
 563
 564 /*
 565  * Copy the messages into the draft.  The messages are
 566  * not filtered through the mhlproc.  Do dashstuffing if
 567  * necessary.
 568  */
 569
 570 static void
 571 copy_draft (int out, char *digest, char *file, int volume, int issue, int dashstuff)
 572 {
 573     int fd,i, msgcnt, msgnum;
 574     int len, buflen;
 575     char *bp, *msgnam;
 576     char buffer[BUFSIZ];
 577
 578     msgcnt = 1;
 579     for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++) {
 580         if (is_selected (mp, msgnum)) {
 581             if (digest) {
 582                 strncpy (buffer, msgnum == mp->lowsel ? delim3 : delim4,
 583                         sizeof(buffer));
 584             } else {
 585                 /* Get buffer ready to go */
 586                 bp = buffer;
 587                 buflen = sizeof(buffer);
 588
 589                 strncpy (bp, "\n-------", buflen);
 590                 len = strlen (bp);
 591                 bp += len;
 592                 buflen -= len;
 593
 594                 if (msgnum == mp->lowsel) {
 595                     snprintf (bp, buflen, " Forwarded Message%s",
 596                         PLURALS(mp->numsel));
 597                 } else {
 598                     snprintf (bp, buflen, " Message %d", msgcnt);
 599                 }
 600                 len = strlen (bp);
 601                 bp += len;
 602                 buflen -= len;
 603
 604                 strncpy (bp, "\n\n", buflen);
 605             }
 606             if (write (out, buffer, strlen (buffer)) < 0) {
 607                 advise (drft, "write");
 608             }
 609
 610             if ((fd = open (msgnam = m_name (msgnum), O_RDONLY)) == NOTOK) {
 611                 admonish (msgnam, "unable to read message");
 612                 continue;
 613             }
 614
 615             /*
 616              * Copy the message.  Add RFC934 quoting (dashstuffing)
 617              * unless given the -nodashstuffing flag.
 618              */
 619             if (dashstuff >= 0)
 620                 cpydgst (fd, out, msgnam, file);
 621             else
 622                 cpydata (fd, out, msgnam, file);
 623
 624             close (fd);
 625             msgcnt++;
 626         }
 627     }
 628
 629     if (digest) {
 630         strncpy (buffer, delim4, sizeof(buffer));
 631     } else {
 632         snprintf (buffer, sizeof(buffer), "\n------- End of Forwarded Message%s\n",
 633                 PLURALS(mp->numsel));
 634     }
 635     if (write (out, buffer, strlen (buffer)) < 0) {
 636         advise (drft, "write");
 637     }
 638
 639     if (digest) {
 640         snprintf (buffer, sizeof(buffer), "End of %s Digest [Volume %d Issue %d]\n",
 641                 digest, volume, issue);
 642         i = strlen (buffer);
 643         for (bp = buffer + i; i > 1; i--)
 644             *bp++ = '*';
 645         *bp++ = '\n';
 646         *bp = 0;
 647         if (write (out, buffer, strlen (buffer)) < 0) {
 648             advise (drft, "write");
 649         }
 650     }
 651 }
 652
 653
 654 /*
 655  * Create a mhn composition file for forwarding message.
 656  */
 657
 658 static void
 659 copy_mime_draft (int out)
 660 {
 661     int msgnum;
 662     char buffer[BUFSIZ];
 663
 664     snprintf (buffer, sizeof(buffer), "#forw [forwarded message%s] +%s",
 665         PLURALS(mp->numsel), mp->foldpath);
 666     if (write (out, buffer, strlen (buffer)) < 0) {
 667         advise (drft, "write");
 668     }
 669     for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++)
 670         if (is_selected (mp, msgnum)) {
 671             snprintf (buffer, sizeof(buffer), " %s", m_name (msgnum));
 672             if (write (out, buffer, strlen (buffer)) < 0) {
 673                 advise (drft, "write");
 674             }
 675         }
 676     if (write (out, "\n", 1) < 0) {
 677         advise (drft, "write newline");
 678     }
 679 }