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