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
  13
  14 #define IFORMAT "digest-issue-%s"
  15 #define VFORMAT "digest-volume-%s"
  16
  17 #define FORW_SWITCHES \
  18     X("annotate", 0, ANNOSW) \
  19     X("noannotate", 0, NANNOSW) \
  20     X("draftfolder +folder", 0, DFOLDSW) \
  21     X("draftmessage msg", 0, DMSGSW) \
  22     X("nodraftfolder", 0, NDFLDSW) \
  23     X("editor editor", 0, EDITRSW) \
  24     X("noedit", 0, NEDITSW) \
  25     X("filter filterfile", 0, FILTSW) \
  26     X("form formfile", 0, FORMSW) \
  27     X("format", 5, FRMTSW) \
  28     X("noformat", 7, NFRMTSW) \
  29     X("inplace", 0, INPLSW) \
  30     X("noinplace", 0, NINPLSW) \
  31     X("mime", 0, MIMESW) \
  32     X("nomime", 0, NMIMESW) \
  33     X("digest list", 0, DGSTSW) \
  34     X("issue number", 0, ISSUESW) \
  35     X("volume number", 0, VOLUMSW) \
  36     X("whatnowproc program", 0, WHATSW) \
  37     X("nowhatnowproc", 0, NWHATSW) \
  38     X("dashstuffing", 0, BITSTUFFSW)          /* interface to mhl */ \
  39     X("nodashstuffing", 0, NBITSTUFFSW) \
  40     X("version", 0, VERSIONSW) \
  41     X("help", 0, HELPSW) \
  42     X("file file", 4, FILESW)                 /* interface from msh */ \
  43     X("build", 5, BILDSW)                     /* interface from mhe */ \
  44     X("from address", 0, FROMSW) \
  45     X("to address", 0, TOSW) \
  46     X("cc address", 0, CCSW) \
  47     X("subject text", 0, SUBJECTSW) \
  48     X("fcc mailbox", 0, FCCSW) \
  49     X("width columns", 0, WIDTHSW) \
  50
  51 #define X(sw, minchars, id) id,
  52 DEFINE_SWITCH_ENUM(FORW);
  53 #undef X
  54
  55 #define X(sw, minchars, id) { sw, minchars, id },
  56 DEFINE_SWITCH_ARRAY(FORW, switches);
  57 #undef X
  58
  59 #define DISPO_SWITCHES \
  60     X("quit", 0, NOSW) \
  61     X("replace", 0, YESW) \
  62     X("list", 0, LISTDSW) \
  63     X("refile +folder", 0, REFILSW) \
  64     X("new", 0, NEWSW) \
  65
  66 #define X(sw, minchars, id) id,
  67 DEFINE_SWITCH_ENUM(DISPO);
  68 #undef X
  69
  70 #define X(sw, minchars, id) { sw, minchars, id },
  71 DEFINE_SWITCH_ARRAY(DISPO, aqrnl);
  72 #undef X
  73
  74 static struct swit aqrl[] = {
  75     { "quit", 0, NOSW },
  76     { "replace", 0, YESW },
  77     { "list", 0, LISTDSW },
  78     { "refile +folder", 0, REFILSW },
  79     { NULL, 0, 0 }
  80 };
  81
  82 static char drft[BUFSIZ];
  83
  84 static char delim3[] =
  85     "\n------------------------------------------------------------\n\n";
  86 static char delim4[] = "\n------------------------------\n\n";
  87
  88
  89 static struct msgs *mp = NULL;          /* used a lot */
  90
  91
  92 /*
  93  * static prototypes
  94  */
  95 static void mhl_draft (int, char *, int, int, char *, char *, int);
  96 static void copy_draft (int, char *, char *, int, int, int);
  97 static void copy_mime_draft (int);
  98
  99
 100 int
 101 main (int argc, char **argv)
 102 {
 103     int anot = 0, inplace = 1, mime = 0;
 104     int issue = 0, volume = 0, dashstuff = 0;
 105     int nedit = 0, nwhat = 0, i, in;
 106     int out, isdf = 0, msgnum = 0;
 107     int outputlinelen = OUTPUTLINELEN;
 108     int dat[5];
 109     char *cp, *cwd, *maildir, *dfolder = NULL;
 110     char *dmsg = NULL, *digest = NULL, *ed = NULL;
 111     char *file = NULL, *filter = NULL, *folder = NULL, *fwdmsg = NULL;
 112     char *from = NULL, *to = NULL, *cc = NULL, *subject = NULL, *fcc = NULL;
 113     char *form = NULL, buf[BUFSIZ], value[10];
 114     char **argp, **arguments;
 115     struct stat st;
 116     struct msgs_array msgs = { 0, 0, NULL };
 117     int buildsw = 0;
 118
 119     if (nmh_init(argv[0], 1)) { return 1; }
 120
 121     arguments = getarguments (invo_name, argc, argv, 1);
 122     argp = arguments;
 123
 124     while ((cp = *argp++)) {
 125         if (*cp == '-') {
 126             switch (smatch (++cp, switches)) {
 127                 case AMBIGSW:
 128                     ambigsw (cp, switches);
 129                     done (1);
 130                 case UNKWNSW:
 131                     adios (NULL, "-%s unknown", cp);
 132
 133                 case HELPSW:
 134                     snprintf (buf, sizeof(buf), "%s [+folder] [msgs] [switches]",
 135                         invo_name);
 136                     print_help (buf, switches, 1);
 137                     done (0);
 138                 case VERSIONSW:
 139                     print_version(invo_name);
 140                     done (0);
 141
 142                 case ANNOSW:
 143                     anot++;
 144                     continue;
 145                 case NANNOSW:
 146                     anot = 0;
 147                     continue;
 148
 149                 case EDITRSW:
 150                     if (!(ed = *argp++) || *ed == '-')
 151                         adios (NULL, "missing argument to %s", argp[-2]);
 152                     nedit = 0;
 153                     continue;
 154                 case NEDITSW:
 155                     nedit++;
 156                     continue;
 157
 158                 case WHATSW:
 159                     if (!(whatnowproc = *argp++) || *whatnowproc == '-')
 160                         adios (NULL, "missing argument to %s", argp[-2]);
 161                     nwhat = 0;
 162                     continue;
 163                 case BILDSW:
 164                     buildsw++;
 165                     /* FALLTHRU */
 166                 case NWHATSW:
 167                     nwhat++;
 168                     continue;
 169
 170                 case FILESW:
 171                     if (file)
 172                         adios (NULL, "only one file at a time!");
 173                     if (!(cp = *argp++) || *cp == '-')
 174                         adios (NULL, "missing argument to %s", argp[-2]);
 175                     file = path (cp, TFILE);
 176                     continue;
 177                 case FILTSW:
 178                     if (!(cp = *argp++) || *cp == '-')
 179                         adios (NULL, "missing argument to %s", argp[-2]);
 180                     filter = getcpy (etcpath (cp));
 181                     mime = 0;
 182                     continue;
 183                 case FORMSW:
 184                     if (!(form = *argp++) || *form == '-')
 185                         adios (NULL, "missing argument to %s", argp[-2]);
 186                     continue;
 187
 188                 case FRMTSW:
 189                     filter = getcpy (etcpath (mhlforward));
 190                     continue;
 191                 case NFRMTSW:
 192                     filter = NULL;
 193                     continue;
 194
 195                 case INPLSW:
 196                     inplace++;
 197                     continue;
 198                 case NINPLSW:
 199                     inplace = 0;
 200                     continue;
 201
 202                 case MIMESW:
 203                     mime++;
 204                     filter = NULL;
 205                     continue;
 206                 case NMIMESW:
 207                     mime = 0;
 208                     continue;
 209
 210                 case DGSTSW:
 211                     if (!(cp = *argp++) || *cp == '-')
 212                         adios (NULL, "missing argument to %s", argp[-2]);
 213                     digest = mh_xstrdup(cp);
 214                     mime = 0;
 215                     continue;
 216                 case ISSUESW:
 217                     if (!(cp = *argp++) || *cp == '-')
 218                         adios (NULL, "missing argument to %s", argp[-2]);
 219                     if ((issue = atoi (cp)) < 1)
 220                         adios (NULL, "bad argument %s %s", argp[-2], cp);
 221                     continue;
 222                 case VOLUMSW:
 223                     if (!(cp = *argp++) || *cp == '-')
 224                         adios (NULL, "missing argument to %s", argp[-2]);
 225                     if ((volume = atoi (cp)) < 1)
 226                         adios (NULL, "bad argument %s %s", argp[-2], cp);
 227                     continue;
 228
 229                 case DFOLDSW:
 230                     if (dfolder)
 231                         adios (NULL, "only one draft folder at a time!");
 232                     if (!(cp = *argp++) || *cp == '-')
 233                         adios (NULL, "missing argument to %s", argp[-2]);
 234                     dfolder = path (*cp == '+' || *cp == '@' ? cp + 1 : cp,
 235                                     *cp != '@' ? TFOLDER : TSUBCWF);
 236                     continue;
 237                 case DMSGSW:
 238                     if (dmsg)
 239                         adios (NULL, "only one draft message at a time!");
 240                     if (!(dmsg = *argp++) || *dmsg == '-')
 241                         adios (NULL, "missing argument to %s", argp[-2]);
 242                     continue;
 243                 case NDFLDSW:
 244                     dfolder = NULL;
 245                     isdf = NOTOK;
 246                     continue;
 247
 248                 case BITSTUFFSW:
 249                     dashstuff = 1;      /* ternary logic */
 250                     continue;
 251                 case NBITSTUFFSW:
 252                     dashstuff = -1;     /* ternary logic */
 253                     continue;
 254
 255                 case FROMSW:
 256                     if (!(cp = *argp++) || *cp == '-')
 257                         adios (NULL, "missing argument to %s", argp[-2]);
 258                     from = addlist(from, cp);
 259                     continue;
 260                 case TOSW:
 261                     if (!(cp = *argp++) || *cp == '-')
 262                         adios (NULL, "missing argument to %s", argp[-2]);
 263                     to = addlist(to, cp);
 264                     continue;
 265                 case CCSW:
 266                     if (!(cp = *argp++) || *cp == '-')
 267                         adios (NULL, "missing argument to %s", argp[-2]);
 268                     cc = addlist(cc, cp);
 269                     continue;
 270                 case FCCSW:
 271                     if (!(cp = *argp++) || *cp == '-')
 272                         adios (NULL, "missing argument to %s", argp[-2]);
 273                     fcc = addlist(fcc, cp);
 274                     continue;
 275                 case SUBJECTSW:
 276                     if (!(cp = *argp++) || *cp == '-')
 277                         adios (NULL, "missing argument to %s", argp[-2]);
 278                     subject = mh_xstrdup(cp);
 279                     continue;
 280
 281                 case WIDTHSW:
 282                     if (!(cp = *argp++) || *cp == '-')
 283                         adios (NULL, "missing argument to %s", argp[-2]);
 284                     if ((outputlinelen = atoi(cp)) < 10)
 285                         adios (NULL, "impossible width %d", outputlinelen);
 286                     continue;
 287             }
 288         }
 289         if (*cp == '+' || *cp == '@') {
 290             if (folder)
 291                 adios (NULL, "only one folder at a time!");
 292             else
 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             snprintf (value, sizeof(value), "%d", issue);
 457             context_replace (buf, mh_xstrdup(value));
 458             snprintf (buf, sizeof(buf), VFORMAT, digest);
 459             snprintf (value, sizeof(value), "%d", volume);
 460             context_replace (buf, mh_xstrdup(value));
 461         }
 462
 463         context_replace (pfolder, folder);      /* update current folder   */
 464         seq_setcur (mp, mp->lowsel);            /* update current message  */
 465         seq_save (mp);                          /* synchronize sequences   */
 466         context_save ();                        /* save the context file   */
 467     }
 468
 469     if (nwhat)
 470         done (0);
 471     what_now (ed, nedit, NOUSE, drft, NULL, 0, mp,
 472         anot ? "Forwarded" : NULL, inplace, cwd, 0);
 473     done (1);
 474     return 1;
 475 }
 476
 477
 478 /*
 479  * Filter the messages you are forwarding, into the
 480  * draft calling the mhlproc, and reading its output
 481  * from a pipe.
 482  */
 483
 484 static void
 485 mhl_draft (int out, char *digest, int volume, int issue,
 486             char *file, char *filter, int dashstuff)
 487 {
 488     pid_t child_id;
 489     int i, msgnum, pd[2];
 490     char buf1[BUFSIZ];
 491     char buf2[BUFSIZ];
 492     char *program;
 493     struct msgs_array vec = { 0, 0, NULL };
 494
 495     if (pipe (pd) == NOTOK)
 496         adios ("pipe", "unable to create");
 497
 498     argsplit_msgarg(&vec, mhlproc, &program);
 499
 500     for (i = 0; (child_id = fork()) == NOTOK && i < 5; i++)
 501         sleep (5);
 502
 503     switch (child_id) {
 504         case NOTOK:
 505             adios ("fork", "unable to");
 506
 507         case OK:
 508             close (pd[0]);
 509             dup2 (pd[1], 1);
 510             close (pd[1]);
 511
 512             app_msgarg(&vec, "-forwall");
 513             app_msgarg(&vec, "-form");
 514             app_msgarg(&vec, filter);
 515
 516             if (digest) {
 517                 app_msgarg(&vec, "-digest");
 518                 app_msgarg(&vec, digest);
 519                 app_msgarg(&vec, "-issue");
 520                 snprintf (buf1, sizeof(buf1), "%d", issue);
 521                 app_msgarg(&vec, buf1);
 522                 app_msgarg(&vec, "-volume");
 523                 snprintf (buf2, sizeof(buf2), "%d", volume);
 524                 app_msgarg(&vec, buf2);
 525             }
 526
 527             /*
 528              * Are we dashstuffing (quoting) the lines that begin
 529              * with `-'.  We use the mhl default (don't add any flag)
 530              * unless the user has specified a specific flag.
 531              */
 532             if (dashstuff > 0)
 533                 app_msgarg(&vec, "-dashstuffing");
 534             else if (dashstuff < 0)
 535                 app_msgarg(&vec, "-nodashstuffing");
 536
 537             for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++) {
 538                 if (is_selected (mp, msgnum))
 539                     app_msgarg(&vec, mh_xstrdup(m_name (msgnum)));
 540             }
 541
 542             app_msgarg(&vec, NULL);
 543
 544             execvp (program, vec.msgs);
 545             fprintf (stderr, "unable to exec ");
 546             perror (mhlproc);
 547             _exit (-1);
 548
 549         default:
 550             close (pd[1]);
 551             cpydata (pd[0], out, vec.msgs[0], file);
 552             close (pd[0]);
 553             pidXwait(child_id, mhlproc);
 554             break;
 555     }
 556 }
 557
 558
 559 /*
 560  * Copy the messages into the draft.  The messages are
 561  * not filtered through the mhlproc.  Do dashstuffing if
 562  * necessary.
 563  */
 564
 565 static void
 566 copy_draft (int out, char *digest, char *file, int volume, int issue, int dashstuff)
 567 {
 568     int fd,i, msgcnt, msgnum;
 569     int len, buflen;
 570     char *bp, *msgnam;
 571     char buffer[BUFSIZ];
 572
 573     msgcnt = 1;
 574     for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++) {
 575         if (is_selected (mp, msgnum)) {
 576             if (digest) {
 577                 strncpy (buffer, msgnum == mp->lowsel ? delim3 : delim4,
 578                         sizeof(buffer));
 579             } else {
 580                 /* Get buffer ready to go */
 581                 bp = buffer;
 582                 buflen = sizeof(buffer);
 583
 584                 strncpy (bp, "\n-------", buflen);
 585                 len = strlen (bp);
 586                 bp += len;
 587                 buflen -= len;
 588
 589                 if (msgnum == mp->lowsel) {
 590                     snprintf (bp, buflen, " Forwarded Message%s",
 591                         mp->numsel > 1 ? "s" : "");
 592                 } else {
 593                     snprintf (bp, buflen, " Message %d", msgcnt);
 594                 }
 595                 len = strlen (bp);
 596                 bp += len;
 597                 buflen -= len;
 598
 599                 strncpy (bp, "\n\n", buflen);
 600             }
 601             if (write (out, buffer, strlen (buffer)) < 0) {
 602                 advise (drft, "write");
 603             }
 604
 605             if ((fd = open (msgnam = m_name (msgnum), O_RDONLY)) == NOTOK) {
 606                 admonish (msgnam, "unable to read message");
 607                 continue;
 608             }
 609
 610             /*
 611              * Copy the message.  Add RFC934 quoting (dashstuffing)
 612              * unless given the -nodashstuffing flag.
 613              */
 614             if (dashstuff >= 0)
 615                 cpydgst (fd, out, msgnam, file);
 616             else
 617                 cpydata (fd, out, msgnam, file);
 618
 619             close (fd);
 620             msgcnt++;
 621         }
 622     }
 623
 624     if (digest) {
 625         strncpy (buffer, delim4, sizeof(buffer));
 626     } else {
 627         snprintf (buffer, sizeof(buffer), "\n------- End of Forwarded Message%s\n",
 628                 mp->numsel > 1 ? "s" : "");
 629     }
 630     if (write (out, buffer, strlen (buffer)) < 0) {
 631         advise (drft, "write");
 632     }
 633
 634     if (digest) {
 635         snprintf (buffer, sizeof(buffer), "End of %s Digest [Volume %d Issue %d]\n",
 636                 digest, volume, issue);
 637         i = strlen (buffer);
 638         for (bp = buffer + i; i > 1; i--)
 639             *bp++ = '*';
 640         *bp++ = '\n';
 641         *bp = 0;
 642         if (write (out, buffer, strlen (buffer)) < 0) {
 643             advise (drft, "write");
 644         }
 645     }
 646 }
 647
 648
 649 /*
 650  * Create a mhn composition file for forwarding message.
 651  */
 652
 653 static void
 654 copy_mime_draft (int out)
 655 {
 656     int msgnum;
 657     char buffer[BUFSIZ];
 658
 659     snprintf (buffer, sizeof(buffer), "#forw [forwarded message%s] +%s",
 660         mp->numsel == 1 ? "" : "s", mp->foldpath);
 661     if (write (out, buffer, strlen (buffer)) < 0) {
 662         advise (drft, "write");
 663     }
 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             if (write (out, buffer, strlen (buffer)) < 0) {
 668                 advise (drft, "write");
 669             }
 670         }
 671     if (write (out, "\n", 1) < 0) {
 672         advise (drft, "write newline");
 673     }
 674 }