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