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

   1 /* forw.c -- forward a message, or group of messages.
   2  *
   3  * This code is Copyright (c) 2002, by the authors of nmh.  See the
   4  * COPYRIGHT file in the root directory of the nmh distribution for
   5  * complete copyright information.
   6  */
   7
   8 #include "h/mh.h"
   9 #include "sbr/ambigsw.h"
  10 #include "sbr/pidstatus.h"
  11 #include "sbr/path.h"
  12 #include "sbr/print_version.h"
  13 #include "sbr/print_help.h"
  14 #include "sbr/arglist.h"
  15 #include "sbr/error.h"
  16 #include <fcntl.h>
  17 #include "h/tws.h"
  18 #include "h/done.h"
  19 #include "h/utils.h"
  20 #include "sbr/m_maildir.h"
  21 #include "forwsbr.h"
  22
  23
  24 #define IFORMAT "digest-issue-%s"
  25 #define VFORMAT "digest-volume-%s"
  26
  27 #define FORW_SWITCHES \
  28     X("annotate", 0, ANNOSW) \
  29     X("noannotate", 0, NANNOSW) \
  30     X("draftfolder +folder", 0, DFOLDSW) \
  31     X("draftmessage msg", 0, DMSGSW) \
  32     X("nodraftfolder", 0, NDFLDSW) \
  33     X("editor editor", 0, EDITRSW) \
  34     X("noedit", 0, NEDITSW) \
  35     X("filter filterfile", 0, FILTSW) \
  36     X("form formfile", 0, FORMSW) \
  37     X("format", 5, FRMTSW) \
  38     X("noformat", 7, NFRMTSW) \
  39     X("inplace", 0, INPLSW) \
  40     X("noinplace", 0, NINPLSW) \
  41     X("mime", 0, MIMESW) \
  42     X("nomime", 0, NMIMESW) \
  43     X("digest list", 0, DGSTSW) \
  44     X("issue number", 0, ISSUESW) \
  45     X("volume number", 0, VOLUMSW) \
  46     X("whatnowproc program", 0, WHATSW) \
  47     X("nowhatnowproc", 0, NWHATSW) \
  48     X("dashstuffing", 0, BITSTUFFSW)          /* interface to mhl */ \
  49     X("nodashstuffing", 0, NBITSTUFFSW) \
  50     X("version", 0, VERSIONSW) \
  51     X("help", 0, HELPSW) \
  52     X("file file", 4, FILESW) \
  53     X("build", 5, BILDSW)                     /* interface from mhe */ \
  54     X("from address", 0, FROMSW) \
  55     X("to address", 0, TOSW) \
  56     X("cc address", 0, CCSW) \
  57     X("subject text", 0, SUBJECTSW) \
  58     X("fcc mailbox", 0, FCCSW) \
  59     X("width columns", 0, WIDTHSW) \
  60
  61 #define X(sw, minchars, id) id,
  62 DEFINE_SWITCH_ENUM(FORW);
  63 #undef X
  64
  65 #define X(sw, minchars, id) { sw, minchars, id },
  66 DEFINE_SWITCH_ARRAY(FORW, switches);
  67 #undef X
  68
  69 #define DISPO_SWITCHES \
  70     X("quit", 0, NOSW) \
  71     X("replace", 0, YESW) \
  72     X("list", 0, LISTDSW) \
  73     X("refile +folder", 0, REFILSW) \
  74     X("new", 0, NEWSW) \
  75
  76 #define X(sw, minchars, id) id,
  77 DEFINE_SWITCH_ENUM(DISPO);
  78 #undef X
  79
  80 #define X(sw, minchars, id) { sw, minchars, id },
  81 DEFINE_SWITCH_ARRAY(DISPO, aqrnl);
  82 #undef X
  83
  84 static struct swit aqrl[] = {
  85     { "quit", 0, NOSW },
  86     { "replace", 0, YESW },
  87     { "list", 0, LISTDSW },
  88     { "refile +folder", 0, REFILSW },
  89     { NULL, 0, 0 }
  90 };
  91
  92 static char drft[BUFSIZ];
  93
  94 static char delim3[] =
  95     "\n------------------------------------------------------------\n\n";
  96 static char delim4[] = "\n------------------------------\n\n";
  97
  98
  99 static struct msgs *mp = NULL;          /* used a lot */
 100
 101
 102 /*
 103  * static prototypes
 104  */
 105 static void mhl_draft (int, char *, int, int, char *, char *, int);
 106 static void copy_draft (int, char *, char *, int, int, int);
 107 static void copy_mime_draft (int);
 108
 109
 110 int
 111 main (int argc, char **argv)
 112 {
 113     bool anot = false;
 114     bool inplace = true;
 115     bool mime = false;
 116     int issue = 0, volume = 0, dashstuff = 0;
 117     bool nedit = false;
 118     bool nwhat = false;
 119     int i, in;
 120     int out, isdf = 0, msgnum = 0;
 121     int outputlinelen = OUTPUTLINELEN;
 122     int dat[5];
 123     char *cp, *cwd, *maildir, *dfolder = NULL;
 124     char *dmsg = NULL, *digest = NULL, *ed = NULL;
 125     char *file = NULL, *filter = NULL, *folder = NULL, *fwdmsg = NULL;
 126     char *from = NULL, *to = NULL, *cc = NULL, *subject = NULL, *fcc = NULL;
 127     char *form = NULL, buf[BUFSIZ];
 128     char **argp, **arguments;
 129     struct stat st;
 130     struct msgs_array msgs = { 0, 0, NULL };
 131     bool buildsw = false;
 132
 133     if (nmh_init(argv[0], true, true)) { return 1; }
 134
 135     arguments = getarguments (invo_name, argc, argv, 1);
 136     argp = arguments;
 137
 138     while ((cp = *argp++)) {
 139         if (*cp == '-') {
 140             switch (smatch (++cp, switches)) {
 141                 case AMBIGSW:
 142                     ambigsw (cp, switches);
 143                     done (1);
 144                 case UNKWNSW:
 145                     die("-%s unknown", cp);
 146
 147                 case HELPSW:
 148                     snprintf (buf, sizeof(buf), "%s [+folder] [msgs] [switches]",
 149                         invo_name);
 150                     print_help (buf, switches, 1);
 151                     done (0);
 152                 case VERSIONSW:
 153                     print_version(invo_name);
 154                     done (0);
 155
 156                 case ANNOSW:
 157                     anot = true;
 158                     continue;
 159                 case NANNOSW:
 160                     anot = false;
 161                     continue;
 162
 163                 case EDITRSW:
 164                     if (!(ed = *argp++) || *ed == '-')
 165                         die("missing argument to %s", argp[-2]);
 166                     nedit = false;
 167                     continue;
 168                 case NEDITSW:
 169                     nedit = true;
 170                     continue;
 171
 172                 case WHATSW:
 173                     if (!(whatnowproc = *argp++) || *whatnowproc == '-')
 174                         die("missing argument to %s", argp[-2]);
 175                     nwhat = false;
 176                     continue;
 177                 case BILDSW:
 178                     buildsw = true;
 179                     /* FALLTHRU */
 180                 case NWHATSW:
 181                     nwhat = true;
 182                     continue;
 183
 184                 case FILESW:
 185                     if (file)
 186                         die("only one file at a time!");
 187                     if (!(cp = *argp++) || *cp == '-')
 188                         die("missing argument to %s", argp[-2]);
 189                     file = path (cp, TFILE);
 190                     continue;
 191                 case FILTSW:
 192                     if (!(cp = *argp++) || *cp == '-')
 193                         die("missing argument to %s", argp[-2]);
 194                     filter = mh_xstrdup(etcpath(cp));
 195                     mime = false;
 196                     continue;
 197                 case FORMSW:
 198                     if (!(form = *argp++) || *form == '-')
 199                         die("missing argument to %s", argp[-2]);
 200                     continue;
 201
 202                 case FRMTSW:
 203                     filter = mh_xstrdup(etcpath(mhlforward));
 204                     continue;
 205                 case NFRMTSW:
 206                     filter = NULL;
 207                     continue;
 208
 209                 case INPLSW:
 210                     inplace = true;
 211                     continue;
 212                 case NINPLSW:
 213                     inplace = false;
 214                     continue;
 215
 216                 case MIMESW:
 217                     mime = true;
 218                     filter = NULL;
 219                     continue;
 220                 case NMIMESW:
 221                     mime = false;
 222                     continue;
 223
 224                 case DGSTSW:
 225                     if (!(cp = *argp++) || *cp == '-')
 226                         die("missing argument to %s", argp[-2]);
 227                     digest = mh_xstrdup(cp);
 228                     mime = false;
 229                     continue;
 230                 case ISSUESW:
 231                     if (!(cp = *argp++) || *cp == '-')
 232                         die("missing argument to %s", argp[-2]);
 233                     if ((issue = atoi (cp)) < 1)
 234                         die("bad argument %s %s", argp[-2], cp);
 235                     continue;
 236                 case VOLUMSW:
 237                     if (!(cp = *argp++) || *cp == '-')
 238                         die("missing argument to %s", argp[-2]);
 239                     if ((volume = atoi (cp)) < 1)
 240                         die("bad argument %s %s", argp[-2], cp);
 241                     continue;
 242
 243                 case DFOLDSW:
 244                     if (dfolder)
 245                         die("only one draft folder at a time!");
 246                     if (!(cp = *argp++) || *cp == '-')
 247                         die("missing argument to %s", argp[-2]);
 248                     dfolder = path (*cp == '+' || *cp == '@' ? cp + 1 : cp,
 249                                     *cp != '@' ? TFOLDER : TSUBCWF);
 250                     continue;
 251                 case DMSGSW:
 252                     if (dmsg)
 253                         die("only one draft message at a time!");
 254                     if (!(dmsg = *argp++) || *dmsg == '-')
 255                         die("missing argument to %s", argp[-2]);
 256                     continue;
 257                 case NDFLDSW:
 258                     dfolder = NULL;
 259                     isdf = NOTOK;
 260                     continue;
 261
 262                 case BITSTUFFSW:
 263                     dashstuff = 1;      /* ternary logic */
 264                     continue;
 265                 case NBITSTUFFSW:
 266                     dashstuff = -1;     /* ternary logic */
 267                     continue;
 268
 269                 case FROMSW:
 270                     if (!(cp = *argp++) || *cp == '-')
 271                         die("missing argument to %s", argp[-2]);
 272                     from = addlist(from, cp);
 273                     continue;
 274                 case TOSW:
 275                     if (!(cp = *argp++) || *cp == '-')
 276                         die("missing argument to %s", argp[-2]);
 277                     to = addlist(to, cp);
 278                     continue;
 279                 case CCSW:
 280                     if (!(cp = *argp++) || *cp == '-')
 281                         die("missing argument to %s", argp[-2]);
 282                     cc = addlist(cc, cp);
 283                     continue;
 284                 case FCCSW:
 285                     if (!(cp = *argp++) || *cp == '-')
 286                         die("missing argument to %s", argp[-2]);
 287                     fcc = addlist(fcc, cp);
 288                     continue;
 289                 case SUBJECTSW:
 290                     if (!(cp = *argp++) || *cp == '-')
 291                         die("missing argument to %s", argp[-2]);
 292                     subject = mh_xstrdup(cp);
 293                     continue;
 294
 295                 case WIDTHSW:
 296                     if (!(cp = *argp++) || *cp == '-')
 297                         die("missing argument to %s", argp[-2]);
 298                     if ((outputlinelen = atoi(cp)) < 10)
 299                         die("impossible width %d", outputlinelen);
 300                     continue;
 301             }
 302         }
 303         if (*cp == '+' || *cp == '@') {
 304             if (folder)
 305                 die("only one folder at a time!");
 306             folder = pluspath (cp);
 307         } else {
 308             app_msgarg(&msgs, cp);
 309         }
 310     }
 311
 312     cwd = mh_xstrdup(pwd ());
 313
 314     if (!context_find ("path"))
 315         free (path ("./", TFOLDER));
 316     if (file && (msgs.size || folder))
 317         die("can't mix files and folders/msgs");
 318
 319 try_it_again:
 320
 321     strncpy (drft, buildsw ? m_maildir ("draft")
 322                           : m_draft (dfolder, NULL, NOUSE, &isdf), sizeof(drft));
 323
 324     /* Check if a draft already exists */
 325     if (!buildsw && stat (drft, &st) != NOTOK) {
 326         printf ("Draft \"%s\" exists (%ld bytes).", drft, (long) st.st_size);
 327         for (i = LISTDSW; i != YESW;) {
 328             if (!(argp = read_switch_multiword ("\nDisposition? ",
 329                                                 isdf ? aqrnl : aqrl)))
 330                 done (1);
 331             switch (i = smatch (*argp, isdf ? aqrnl : aqrl)) {
 332                 case NOSW:
 333                     done (0);
 334                 case NEWSW:
 335                     dmsg = NULL;
 336                     goto try_it_again;
 337                 case YESW:
 338                     break;
 339                 case LISTDSW:
 340                     showfile (++argp, drft);
 341                     break;
 342                 case REFILSW:
 343                     if (refile (++argp, drft) == 0)
 344                         i = YESW;
 345                     break;
 346                 default:
 347                     inform("say what?");
 348                     break;
 349             }
 350         }
 351     }
 352
 353     if (file) {
 354         /*
 355          * Forwarding a file.
 356          */
 357         anot = false;   /* don't want to annotate a file */
 358     } else {
 359         /*
 360          * Forwarding a message.
 361          */
 362         if (!msgs.size)
 363             app_msgarg(&msgs, "cur");
 364         if (!folder)
 365             folder = getfolder (1);
 366         maildir = m_maildir (folder);
 367
 368         if (chdir (maildir) == NOTOK)
 369             adios (maildir, "unable to change directory to");
 370
 371         /* read folder and create message structure */
 372         if (!(mp = folder_read (folder, 1)))
 373             die("unable to read folder %s", folder);
 374
 375         /* check for empty folder */
 376         if (mp->nummsg == 0)
 377             die("no messages in %s", folder);
 378
 379         /* parse all the message ranges/sequences and set SELECTED */
 380         for (msgnum = 0; msgnum < msgs.size; msgnum++)
 381             if (!m_convert (mp, msgs.msgs[msgnum]))
 382                 done (1);
 383
 384         seq_setprev (mp);       /* set the previous sequence */
 385
 386         /*
 387          * Find the first message in our set and use it as the input
 388          * for the component scanner
 389          */
 390
 391         for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++)
 392             if (is_selected (mp, msgnum)) {
 393                 fwdmsg = mh_xstrdup(m_name(msgnum));
 394                 break;
 395             }
 396
 397         if (! fwdmsg)
 398             die("Unable to find input message");
 399     }
 400
 401     if (filter && access (filter, R_OK) == NOTOK)
 402         adios (filter, "unable to read");
 403
 404     /*
 405      * Open form (component) file.
 406      */
 407     if (digest) {
 408         if (issue == 0) {
 409             snprintf (buf, sizeof(buf), IFORMAT, digest);
 410             if (volume == 0
 411                     && (cp = context_find (buf))
 412                     && ((issue = atoi (cp)) < 0))
 413                 issue = 0;
 414             issue++;
 415         }
 416         if (volume == 0) {
 417             snprintf (buf, sizeof(buf), VFORMAT, digest);
 418             if ((cp = context_find (buf)) == NULL || (volume = atoi (cp)) <= 0)
 419                 volume = 1;
 420         }
 421         if (!form)
 422             form = digestcomps;
 423     } else {
 424         if (!form)
 425             form = forwcomps;
 426     }
 427
 428     dat[0] = digest ? issue : msgnum;
 429     dat[1] = volume;
 430     dat[2] = 0;
 431     dat[3] = outputlinelen;
 432     dat[4] = 0;
 433
 434
 435     in = build_form (form, digest, dat, from, to, cc, fcc, subject,
 436                      file ? file : fwdmsg);
 437
 438     if ((out = creat (drft, m_gmprot ())) == NOTOK)
 439         adios (drft, "unable to create");
 440
 441     /*
 442      * copy the components into the draft
 443      */
 444     cpydata (in, out, form, drft);
 445     close (in);
 446
 447     if (file) {
 448         /* just copy the file into the draft */
 449         if ((in = open (file, O_RDONLY)) == NOTOK)
 450             adios (file, "unable to open");
 451         cpydata (in, out, file, drft);
 452         close (in);
 453         close (out);
 454     } else {
 455         /*
 456          * If filter file is defined, then format the
 457          * messages into the draft using mhlproc.
 458          */
 459         if (filter)
 460             mhl_draft (out, digest, volume, issue, drft, filter, dashstuff);
 461         else if (mime)
 462             copy_mime_draft (out);
 463         else
 464             copy_draft (out, digest, drft, volume, issue, dashstuff);
 465         close (out);
 466
 467         if (digest) {
 468             snprintf (buf, sizeof(buf), IFORMAT, digest);
 469             context_replace (buf, mh_xstrdup(m_str(issue)));
 470             snprintf (buf, sizeof(buf), VFORMAT, digest);
 471             context_replace (buf, mh_xstrdup(m_str(volume)));
 472         }
 473
 474         context_replace (pfolder, folder);      /* update current folder   */
 475         seq_setcur (mp, mp->lowsel);            /* update current message  */
 476         seq_save (mp);                          /* synchronize sequences   */
 477         context_save ();                        /* save the context file   */
 478     }
 479
 480     if (nwhat)
 481         done (0);
 482     what_now (ed, nedit, NOUSE, drft, NULL, 0, mp,
 483         anot ? "Forwarded" : NULL, inplace, cwd, 0);
 484     done (1);
 485     return 1;
 486 }
 487
 488
 489 /*
 490  * Filter the messages you are forwarding, into the
 491  * draft calling the mhlproc, and reading its output
 492  * from a pipe.
 493  */
 494
 495 static void
 496 mhl_draft (int out, char *digest, int volume, int issue,
 497             char *file, char *filter, int dashstuff)
 498 {
 499     pid_t child_id;
 500     int msgnum, pd[2];
 501     char buf1[BUFSIZ];
 502     char buf2[BUFSIZ];
 503     char *program;
 504     struct msgs_array vec = { 0, 0, NULL };
 505
 506     if (pipe (pd) == NOTOK)
 507         adios ("pipe", "unable to create");
 508
 509     argsplit_msgarg(&vec, mhlproc, &program);
 510
 511     child_id = fork();
 512     switch (child_id) {
 513         case NOTOK:
 514             adios ("fork", "unable to");
 515
 516         case OK:
 517             close (pd[0]);
 518             dup2 (pd[1], 1);
 519             close (pd[1]);
 520
 521             app_msgarg(&vec, "-forwall");
 522             app_msgarg(&vec, "-form");
 523             app_msgarg(&vec, filter);
 524
 525             if (digest) {
 526                 app_msgarg(&vec, "-digest");
 527                 app_msgarg(&vec, digest);
 528                 app_msgarg(&vec, "-issue");
 529                 snprintf (buf1, sizeof(buf1), "%d", issue);
 530                 app_msgarg(&vec, buf1);
 531                 app_msgarg(&vec, "-volume");
 532                 snprintf (buf2, sizeof(buf2), "%d", volume);
 533                 app_msgarg(&vec, buf2);
 534             }
 535
 536             /*
 537              * Are we dashstuffing (quoting) the lines that begin
 538              * with `-'.  We use the mhl default (don't add any flag)
 539              * unless the user has specified a specific flag.
 540              */
 541             if (dashstuff > 0)
 542                 app_msgarg(&vec, "-dashstuffing");
 543             else if (dashstuff < 0)
 544                 app_msgarg(&vec, "-nodashstuffing");
 545
 546             for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++) {
 547                 if (is_selected (mp, msgnum))
 548                     app_msgarg(&vec, mh_xstrdup(m_name (msgnum)));
 549             }
 550
 551             app_msgarg(&vec, NULL);
 552
 553             execvp (program, vec.msgs);
 554             fprintf (stderr, "unable to exec ");
 555             perror (mhlproc);
 556             _exit(1);
 557
 558         default:
 559             close (pd[1]);
 560             cpydata (pd[0], out, vec.msgs[0], file);
 561             close (pd[0]);
 562             pidXwait(child_id, mhlproc);
 563             break;
 564     }
 565 }
 566
 567
 568 /*
 569  * Copy the messages into the draft.  The messages are
 570  * not filtered through the mhlproc.  Do dashstuffing if
 571  * necessary.
 572  */
 573
 574 static void
 575 copy_draft (int out, char *digest, char *file, int volume, int issue, int dashstuff)
 576 {
 577     int fd,i, msgcnt, msgnum;
 578     int len, buflen;
 579     char *bp, *msgnam;
 580     char buffer[BUFSIZ];
 581
 582     msgcnt = 1;
 583     for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++) {
 584         if (is_selected (mp, msgnum)) {
 585             if (digest) {
 586                 strncpy (buffer, msgnum == mp->lowsel ? delim3 : delim4,
 587                         sizeof(buffer));
 588             } else {
 589                 /* Get buffer ready to go */
 590                 bp = buffer;
 591                 buflen = sizeof(buffer);
 592
 593                 strncpy (bp, "\n-------", buflen);
 594                 len = strlen (bp);
 595                 bp += len;
 596                 buflen -= len;
 597
 598                 if (msgnum == mp->lowsel) {
 599                     snprintf (bp, buflen, " Forwarded Message%s",
 600                         PLURALS(mp->numsel));
 601                 } else {
 602                     snprintf (bp, buflen, " Message %d", msgcnt);
 603                 }
 604                 len = strlen (bp);
 605                 bp += len;
 606                 buflen -= len;
 607
 608                 strncpy (bp, "\n\n", buflen);
 609             }
 610             if (write (out, buffer, strlen (buffer)) < 0) {
 611                 advise (drft, "write");
 612             }
 613
 614             if ((fd = open (msgnam = m_name (msgnum), O_RDONLY)) == NOTOK) {
 615                 admonish (msgnam, "unable to read message");
 616                 continue;
 617             }
 618
 619             /*
 620              * Copy the message.  Add RFC934 quoting (dashstuffing)
 621              * unless given the -nodashstuffing flag.
 622              */
 623             if (dashstuff >= 0)
 624                 cpydgst (fd, out, msgnam, file);
 625             else
 626                 cpydata (fd, out, msgnam, file);
 627
 628             close (fd);
 629             msgcnt++;
 630         }
 631     }
 632
 633     if (digest) {
 634         strncpy (buffer, delim4, sizeof(buffer));
 635     } else {
 636         snprintf (buffer, sizeof(buffer), "\n------- End of Forwarded Message%s\n",
 637                 PLURALS(mp->numsel));
 638     }
 639     if (write (out, buffer, strlen (buffer)) < 0) {
 640         advise (drft, "write");
 641     }
 642
 643     if (digest) {
 644         snprintf (buffer, sizeof(buffer), "End of %s Digest [Volume %d Issue %d]\n",
 645                 digest, volume, issue);
 646         i = strlen (buffer);
 647         for (bp = buffer + i; i > 1; i--)
 648             *bp++ = '*';
 649         *bp++ = '\n';
 650         *bp = 0;
 651         if (write (out, buffer, strlen (buffer)) < 0) {
 652             advise (drft, "write");
 653         }
 654     }
 655 }
 656
 657
 658 /*
 659  * Create a mhn composition file for forwarding message.
 660  */
 661
 662 static void
 663 copy_mime_draft (int out)
 664 {
 665     int msgnum;
 666     char buffer[BUFSIZ];
 667
 668     snprintf (buffer, sizeof(buffer), "#forw [forwarded message%s] +%s",
 669         PLURALS(mp->numsel), mp->foldpath);
 670     if (write (out, buffer, strlen (buffer)) < 0) {
 671         advise (drft, "write");
 672     }
 673     for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++)
 674         if (is_selected (mp, msgnum)) {
 675             snprintf (buffer, sizeof(buffer), " %s", m_name (msgnum));
 676             if (write (out, buffer, strlen (buffer)) < 0) {
 677                 advise (drft, "write");
 678             }
 679         }
 680     if (write (out, "\n", 1) < 0) {
 681         advise (drft, "write newline");
 682     }
 683 }