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

   1
   2 /*
   3  * forw.c -- forward a message, or group of messages.
   4  *
   5  * This code is Copyright (c) 2002, by the authors of nmh.  See the
   6  * COPYRIGHT file in the root directory of the nmh distribution for
   7  * complete copyright information.
   8  */
   9
  10 #include <h/mh.h>
  11 #include <fcntl.h>
  12 #include <h/tws.h>
  13 #include <h/utils.h>
  14
  15
  16 #define IFORMAT "digest-issue-%s"
  17 #define VFORMAT "digest-volume-%s"
  18
  19 #define FORW_SWITCHES \
  20     X("annotate", 0, ANNOSW) \
  21     X("noannotate", 0, NANNOSW) \
  22     X("draftfolder +folder", 0, DFOLDSW) \
  23     X("draftmessage msg", 0, DMSGSW) \
  24     X("nodraftfolder", 0, NDFLDSW) \
  25     X("editor editor", 0, EDITRSW) \
  26     X("noedit", 0, NEDITSW) \
  27     X("filter filterfile", 0, FILTSW) \
  28     X("form formfile", 0, FORMSW) \
  29     X("format", 5, FRMTSW) \
  30     X("noformat", 7, NFRMTSW) \
  31     X("inplace", 0, INPLSW) \
  32     X("noinplace", 0, NINPLSW) \
  33     X("mime", 0, MIMESW) \
  34     X("nomime", 0, NMIMESW) \
  35     X("digest list", 0, DGSTSW) \
  36     X("issue number", 0, ISSUESW) \
  37     X("volume number", 0, VOLUMSW) \
  38     X("whatnowproc program", 0, WHATSW) \
  39     X("nowhatnowproc", 0, NWHATSW) \
  40     X("dashstuffing", 0, BITSTUFFSW)          /* interface to mhl */ \
  41     X("nodashstuffing", 0, NBITSTUFFSW) \
  42     X("version", 0, VERSIONSW) \
  43     X("help", 0, HELPSW) \
  44     X("file file", 4, FILESW)                 /* interface from msh */ \
  45     X("build", 5, BILDSW)                     /* interface from mhe */ \
  46     X("from address", 0, FROMSW) \
  47     X("to address", 0, TOSW) \
  48     X("cc address", 0, CCSW) \
  49     X("subject text", 0, SUBJECTSW) \
  50     X("fcc mailbox", 0, FCCSW) \
  51     X("width columns", 0, WIDTHSW) \
  52
  53 #define X(sw, minchars, id) id,
  54 DEFINE_SWITCH_ENUM(FORW);
  55 #undef X
  56
  57 #define X(sw, minchars, id) { sw, minchars, id },
  58 DEFINE_SWITCH_ARRAY(FORW, switches);
  59 #undef X
  60
  61 #define DISPO_SWITCHES \
  62     X("quit", 0, NOSW) \
  63     X("replace", 0, YESW) \
  64     X("list", 0, LISTDSW) \
  65     X("refile +folder", 0, REFILSW) \
  66     X("new", 0, NEWSW) \
  67
  68 #define X(sw, minchars, id) id,
  69 DEFINE_SWITCH_ENUM(DISPO);
  70 #undef X
  71
  72 #define X(sw, minchars, id) { sw, minchars, id },
  73 DEFINE_SWITCH_ARRAY(DISPO, aqrnl);
  74 #undef X
  75
  76 static struct swit aqrl[] = {
  77     { "quit", 0, NOSW },
  78     { "replace", 0, YESW },
  79     { "list", 0, LISTDSW },
  80     { "refile +folder", 0, REFILSW },
  81     { NULL, 0, 0 }
  82 };
  83
  84 static char drft[BUFSIZ];
  85
  86 static char delim3[] =
  87     "\n------------------------------------------------------------\n\n";
  88 static char delim4[] = "\n------------------------------\n\n";
  89
  90
  91 static struct msgs *mp = NULL;          /* used a lot */
  92
  93
  94 /*
  95  * static prototypes
  96  */
  97 static void mhl_draft (int, char *, int, int, char *, char *, int);
  98 static void copy_draft (int, char *, char *, int, int, int);
  99 static void copy_mime_draft (int);
 100
 101
 102 int
 103 main (int argc, char **argv)
 104 {
 105     int anot = 0, inplace = 1, mime = 0;
 106     int issue = 0, volume = 0, dashstuff = 0;
 107     int nedit = 0, nwhat = 0, i, in;
 108     int out, isdf = 0, msgnum = 0;
 109     int outputlinelen = OUTPUTLINELEN;
 110     int dat[5];
 111     char *cp, *cwd, *maildir, *dfolder = NULL;
 112     char *dmsg = NULL, *digest = NULL, *ed = NULL;
 113     char *file = NULL, *filter = NULL, *folder = NULL, *fwdmsg = NULL;
 114     char *from = NULL, *to = NULL, *cc = NULL, *subject = NULL, *fcc = NULL;
 115     char *form = NULL, buf[BUFSIZ], value[10];
 116     char **argp, **arguments;
 117     struct stat st;
 118     struct msgs_array msgs = { 0, 0, NULL };
 119
 120     int buildsw = 0;
 121
 122 #ifdef LOCALE
 123     setlocale(LC_ALL, "");
 124 #endif
 125     invo_name = r1bindex (argv[0], '/');
 126
 127     /* read user profile/context */
 128     context_read();
 129
 130     arguments = getarguments (invo_name, argc, argv, 1);
 131     argp = arguments;
 132
 133     while ((cp = *argp++)) {
 134         if (*cp == '-') {
 135             switch (smatch (++cp, switches)) {
 136                 case AMBIGSW:
 137                     ambigsw (cp, switches);
 138                     done (1);
 139                 case UNKWNSW:
 140                     adios (NULL, "-%s unknown", cp);
 141
 142                 case HELPSW:
 143                     snprintf (buf, sizeof(buf), "%s [+folder] [msgs] [switches]",
 144                         invo_name);
 145                     print_help (buf, switches, 1);
 146                     done (0);
 147                 case VERSIONSW:
 148                     print_version(invo_name);
 149                     done (0);
 150
 151                 case ANNOSW:
 152                     anot++;
 153                     continue;
 154                 case NANNOSW:
 155                     anot = 0;
 156                     continue;
 157
 158                 case EDITRSW:
 159                     if (!(ed = *argp++) || *ed == '-')
 160                         adios (NULL, "missing argument to %s", argp[-2]);
 161                     nedit = 0;
 162                     continue;
 163                 case NEDITSW:
 164                     nedit++;
 165                     continue;
 166
 167                 case WHATSW:
 168                     if (!(whatnowproc = *argp++) || *whatnowproc == '-')
 169                         adios (NULL, "missing argument to %s", argp[-2]);
 170                     nwhat = 0;
 171                     continue;
 172                 case BILDSW:
 173                     buildsw++;  /* fall... */
 174                 case NWHATSW:
 175                     nwhat++;
 176                     continue;
 177
 178                 case FILESW:
 179                     if (file)
 180                         adios (NULL, "only one file at a time!");
 181                     if (!(cp = *argp++) || *cp == '-')
 182                         adios (NULL, "missing argument to %s", argp[-2]);
 183                     file = path (cp, TFILE);
 184                     continue;
 185                 case FILTSW:
 186                     if (!(cp = *argp++) || *cp == '-')
 187                         adios (NULL, "missing argument to %s", argp[-2]);
 188                     filter = getcpy (etcpath (cp));
 189                     mime = 0;
 190                     continue;
 191                 case FORMSW:
 192                     if (!(form = *argp++) || *form == '-')
 193                         adios (NULL, "missing argument to %s", argp[-2]);
 194                     continue;
 195
 196                 case FRMTSW:
 197                     filter = getcpy (etcpath (mhlforward));
 198                     continue;
 199                 case NFRMTSW:
 200                     filter = NULL;
 201                     continue;
 202
 203                 case INPLSW:
 204                     inplace++;
 205                     continue;
 206                 case NINPLSW:
 207                     inplace = 0;
 208                     continue;
 209
 210                 case MIMESW:
 211                     mime++;
 212                     filter = NULL;
 213                     continue;
 214                 case NMIMESW:
 215                     mime = 0;
 216                     continue;
 217
 218                 case DGSTSW:
 219                     if (!(cp = *argp++) || *cp == '-')
 220                         adios (NULL, "missing argument to %s", argp[-2]);
 221                     digest = getcpy(cp);
 222                     mime = 0;
 223                     continue;
 224                 case ISSUESW:
 225                     if (!(cp = *argp++) || *cp == '-')
 226                         adios (NULL, "missing argument to %s", argp[-2]);
 227                     if ((issue = atoi (cp)) < 1)
 228                         adios (NULL, "bad argument %s %s", argp[-2], cp);
 229                     continue;
 230                 case VOLUMSW:
 231                     if (!(cp = *argp++) || *cp == '-')
 232                         adios (NULL, "missing argument to %s", argp[-2]);
 233                     if ((volume = atoi (cp)) < 1)
 234                         adios (NULL, "bad argument %s %s", argp[-2], cp);
 235                     continue;
 236
 237                 case DFOLDSW:
 238                     if (dfolder)
 239                         adios (NULL, "only one draft folder at a time!");
 240                     if (!(cp = *argp++) || *cp == '-')
 241                         adios (NULL, "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                         adios (NULL, "only one draft message at a time!");
 248                     if (!(dmsg = *argp++) || *dmsg == '-')
 249                         adios (NULL, "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;      /* trinary logic */
 258                     continue;
 259                 case NBITSTUFFSW:
 260                     dashstuff = -1;     /* trinary logic */
 261                     continue;
 262
 263                 case FROMSW:
 264                     if (!(cp = *argp++) || *cp == '-')
 265                         adios (NULL, "missing argument to %s", argp[-2]);
 266                     from = addlist(from, cp);
 267                     continue;
 268                 case TOSW:
 269                     if (!(cp = *argp++) || *cp == '-')
 270                         adios (NULL, "missing argument to %s", argp[-2]);
 271                     to = addlist(to, cp);
 272                     continue;
 273                 case CCSW:
 274                     if (!(cp = *argp++) || *cp == '-')
 275                         adios (NULL, "missing argument to %s", argp[-2]);
 276                     cc = addlist(cc, cp);
 277                     continue;
 278                 case FCCSW:
 279                     if (!(cp = *argp++) || *cp == '-')
 280                         adios (NULL, "missing argument to %s", argp[-2]);
 281                     fcc = addlist(fcc, cp);
 282                     continue;
 283                 case SUBJECTSW:
 284                     if (!(cp = *argp++) || *cp == '-')
 285                         adios (NULL, "missing argument to %s", argp[-2]);
 286                     subject = getcpy(cp);
 287                     continue;
 288
 289                 case WIDTHSW:
 290                     if (!(cp = *argp++) || *cp == '-')
 291                         adios (NULL, "missing argument to %s", argp[-2]);
 292                     if ((outputlinelen = atoi(cp)) < 10)
 293                         adios (NULL, "impossible width %d", outputlinelen);
 294                     continue;
 295             }
 296         }
 297         if (*cp == '+' || *cp == '@') {
 298             if (folder)
 299                 adios (NULL, "only one folder at a time!");
 300             else
 301                 folder = pluspath (cp);
 302         } else {
 303             app_msgarg(&msgs, cp);
 304         }
 305     }
 306
 307     cwd = getcpy (pwd ());
 308
 309     if (!context_find ("path"))
 310         free (path ("./", TFOLDER));
 311     if (file && (msgs.size || folder))
 312         adios (NULL, "can't mix files and folders/msgs");
 313
 314 try_it_again:
 315
 316     strncpy (drft, buildsw ? m_maildir ("draft")
 317                           : m_draft (dfolder, NULL, NOUSE, &isdf), sizeof(drft));
 318
 319     /* Check if a draft already exists */
 320     if (!buildsw && stat (drft, &st) != NOTOK) {
 321         printf ("Draft \"%s\" exists (%ld bytes).", drft, (long) st.st_size);
 322         for (i = LISTDSW; i != YESW;) {
 323             if (!(argp = getans ("\nDisposition? ", 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                     advise (NULL, "say what?");
 342                     break;
 343             }
 344         }
 345     }
 346
 347     if (file) {
 348         /*
 349          * Forwarding a file.
 350          */
 351         anot = 0;       /* 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             adios (NULL, "unable to read folder %s", folder);
 368
 369         /* check for empty folder */
 370         if (mp->nummsg == 0)
 371             adios (NULL, "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 = strdup(m_name(msgnum));
 388                 break;
 389             }
 390
 391         if (! fwdmsg)
 392             adios (NULL, "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             snprintf (value, sizeof(value), "%d", issue);
 464             context_replace (buf, getcpy (value));
 465             snprintf (buf, sizeof(buf), VFORMAT, digest);
 466             snprintf (value, sizeof(value), "%d", volume);
 467             context_replace (buf, getcpy (value));
 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 i, 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     for (i = 0; (child_id = fork()) == NOTOK && i < 5; i++)
 508         sleep (5);
 509
 510     switch (child_id) {
 511         case NOTOK:
 512             adios ("fork", "unable to");
 513
 514         case OK:
 515             close (pd[0]);
 516             dup2 (pd[1], 1);
 517             close (pd[1]);
 518
 519             i = 1;
 520             app_msgarg(&vec, "-forwall");
 521             app_msgarg(&vec, "-form");
 522             app_msgarg(&vec, filter);
 523
 524             if (digest) {
 525                 app_msgarg(&vec, "-digest");
 526                 app_msgarg(&vec, digest);
 527                 app_msgarg(&vec, "-issue");
 528                 snprintf (buf1, sizeof(buf1), "%d", issue);
 529                 app_msgarg(&vec, buf1);
 530                 app_msgarg(&vec, "-volume");
 531                 snprintf (buf2, sizeof(buf2), "%d", volume);
 532                 app_msgarg(&vec, buf2);
 533             }
 534
 535             /*
 536              * Are we dashstuffing (quoting) the lines that begin
 537              * with `-'.  We use the mhl default (don't add any flag)
 538              * unless the user has specified a specific flag.
 539              */
 540             if (dashstuff > 0)
 541                 app_msgarg(&vec, "-dashstuffing");
 542             else if (dashstuff < 0)
 543                 app_msgarg(&vec, "-nodashstuffing");
 544
 545             for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++) {
 546                 if (is_selected (mp, msgnum))
 547                     app_msgarg(&vec, getcpy (m_name (msgnum)));
 548             }
 549
 550             app_msgarg(&vec, NULL);
 551
 552             execvp (program, vec.msgs);
 553             fprintf (stderr, "unable to exec ");
 554             perror (mhlproc);
 555             _exit (-1);
 556
 557         default:
 558             close (pd[1]);
 559             cpydata (pd[0], out, vec.msgs[0], file);
 560             close (pd[0]);
 561             pidXwait(child_id, mhlproc);
 562             break;
 563     }
 564 }
 565
 566
 567 /*
 568  * Copy the messages into the draft.  The messages are
 569  * not filtered through the mhlproc.  Do dashstuffing if
 570  * necessary.
 571  */
 572
 573 static void
 574 copy_draft (int out, char *digest, char *file, int volume, int issue, int dashstuff)
 575 {
 576     int fd,i, msgcnt, msgnum;
 577     int len, buflen;
 578     register char *bp, *msgnam;
 579     char buffer[BUFSIZ];
 580
 581     msgcnt = 1;
 582     for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++) {
 583         if (is_selected (mp, msgnum)) {
 584             if (digest) {
 585                 strncpy (buffer, msgnum == mp->lowsel ? delim3 : delim4,
 586                         sizeof(buffer));
 587             } else {
 588                 /* Get buffer ready to go */
 589                 bp = buffer;
 590                 buflen = sizeof(buffer);
 591
 592                 strncpy (bp, "\n-------", buflen);
 593                 len = strlen (bp);
 594                 bp += len;
 595                 buflen -= len;
 596
 597                 if (msgnum == mp->lowsel) {
 598                     snprintf (bp, buflen, " Forwarded Message%s",
 599                         mp->numsel > 1 ? "s" : "");
 600                 } else {
 601                     snprintf (bp, buflen, " Message %d", msgcnt);
 602                 }
 603                 len = strlen (bp);
 604                 bp += len;
 605                 buflen -= len;
 606
 607                 strncpy (bp, "\n\n", buflen);
 608             }
 609             write (out, buffer, strlen (buffer));
 610
 611             if ((fd = open (msgnam = m_name (msgnum), O_RDONLY)) == NOTOK) {
 612                 admonish (msgnam, "unable to read message");
 613                 continue;
 614             }
 615
 616             /*
 617              * Copy the message.  Add RFC934 quoting (dashstuffing)
 618              * unless given the -nodashstuffing flag.
 619              */
 620             if (dashstuff >= 0)
 621                 cpydgst (fd, out, msgnam, file);
 622             else
 623                 cpydata (fd, out, msgnam, file);
 624
 625             close (fd);
 626             msgcnt++;
 627         }
 628     }
 629
 630     if (digest) {
 631         strncpy (buffer, delim4, sizeof(buffer));
 632     } else {
 633         snprintf (buffer, sizeof(buffer), "\n------- End of Forwarded Message%s\n",
 634                 mp->numsel > 1 ? "s" : "");
 635     }
 636     write (out, buffer, strlen (buffer));
 637
 638     if (digest) {
 639         snprintf (buffer, sizeof(buffer), "End of %s Digest [Volume %d Issue %d]\n",
 640                 digest, volume, issue);
 641         i = strlen (buffer);
 642         for (bp = buffer + i; i > 1; i--)
 643             *bp++ = '*';
 644         *bp++ = '\n';
 645         *bp = 0;
 646         write (out, buffer, strlen (buffer));
 647     }
 648 }
 649
 650
 651 /*
 652  * Create a mhn composition file for forwarding message.
 653  */
 654
 655 static void
 656 copy_mime_draft (int out)
 657 {
 658     int msgnum;
 659     char buffer[BUFSIZ];
 660
 661     snprintf (buffer, sizeof(buffer), "#forw [forwarded message%s] +%s",
 662         mp->numsel == 1 ? "" : "s", mp->foldpath);
 663     write (out, buffer, strlen (buffer));
 664     for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++)
 665         if (is_selected (mp, msgnum)) {
 666             snprintf (buffer, sizeof(buffer), " %s", m_name (msgnum));
 667             write (out, buffer, strlen (buffer));
 668         }
 669     write (out, "\n", 1);
 670 }