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