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