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/context_save.h"
  10 #include "sbr/context_replace.h"
  11 #include "sbr/context_find.h"
  12 #include "sbr/ambigsw.h"
  13 #include "sbr/pidstatus.h"
  14 #include "sbr/path.h"
  15 #include "sbr/print_version.h"
  16 #include "sbr/print_help.h"
  17 #include "sbr/arglist.h"
  18 #include "sbr/error.h"
  19 #include <fcntl.h>
  20 #include "h/tws.h"
  21 #include "h/done.h"
  22 #include "h/utils.h"
  23 #include "sbr/m_maildir.h"
  24 #include "forwsbr.h"
  25
  26
  27 #define IFORMAT "digest-issue-%s"
  28 #define VFORMAT "digest-volume-%s"
  29
  30 #define FORW_SWITCHES \
  31     X("annotate", 0, ANNOSW) \
  32     X("noannotate", 0, NANNOSW) \
  33     X("draftfolder +folder", 0, DFOLDSW) \
  34     X("draftmessage msg", 0, DMSGSW) \
  35     X("nodraftfolder", 0, NDFLDSW) \
  36     X("editor editor", 0, EDITRSW) \
  37     X("noedit", 0, NEDITSW) \
  38     X("filter filterfile", 0, FILTSW) \
  39     X("form formfile", 0, FORMSW) \
  40     X("format", 5, FRMTSW) \
  41     X("noformat", 7, NFRMTSW) \
  42     X("inplace", 0, INPLSW) \
  43     X("noinplace", 0, NINPLSW) \
  44     X("mime", 0, MIMESW) \
  45     X("nomime", 0, NMIMESW) \
  46     X("digest list", 0, DGSTSW) \
  47     X("issue number", 0, ISSUESW) \
  48     X("volume number", 0, VOLUMSW) \
  49     X("whatnowproc program", 0, WHATSW) \
  50     X("nowhatnowproc", 0, NWHATSW) \
  51     X("dashstuffing", 0, BITSTUFFSW)          /* interface to mhl */ \
  52     X("nodashstuffing", 0, NBITSTUFFSW) \
  53     X("version", 0, VERSIONSW) \
  54     X("help", 0, HELPSW) \
  55     X("file file", 4, FILESW) \
  56     X("build", 5, BILDSW)                     /* interface from mhe */ \
  57     X("from address", 0, FROMSW) \
  58     X("to address", 0, TOSW) \
  59     X("cc address", 0, CCSW) \
  60     X("subject text", 0, SUBJECTSW) \
  61     X("fcc mailbox", 0, FCCSW) \
  62     X("width columns", 0, WIDTHSW) \
  63
  64 #define X(sw, minchars, id) id,
  65 DEFINE_SWITCH_ENUM(FORW);
  66 #undef X
  67
  68 #define X(sw, minchars, id) { sw, minchars, id },
  69 DEFINE_SWITCH_ARRAY(FORW, switches);
  70 #undef X
  71
  72 #define DISPO_SWITCHES \
  73     X("quit", 0, NOSW) \
  74     X("replace", 0, YESW) \
  75     X("list", 0, LISTDSW) \
  76     X("refile +folder", 0, REFILSW) \
  77     X("new", 0, NEWSW) \
  78
  79 #define X(sw, minchars, id) id,
  80 DEFINE_SWITCH_ENUM(DISPO);
  81 #undef X
  82
  83 #define X(sw, minchars, id) { sw, minchars, id },
  84 DEFINE_SWITCH_ARRAY(DISPO, aqrnl);
  85 #undef X
  86
  87 static struct swit aqrl[] = {
  88     { "quit", 0, NOSW },
  89     { "replace", 0, YESW },
  90     { "list", 0, LISTDSW },
  91     { "refile +folder", 0, REFILSW },
  92     { NULL, 0, 0 }
  93 };
  94
  95 static char drft[BUFSIZ];
  96
  97 static char delim3[] =
  98     "\n------------------------------------------------------------\n\n";
  99 static char delim4[] = "\n------------------------------\n\n";
 100
 101
 102 static struct msgs *mp = NULL;          /* used a lot */
 103
 104
 105 /*
 106  * static prototypes
 107  */
 108 static void mhl_draft (int, char *, int, int, char *, char *, int);
 109 static void copy_draft (int, char *, char *, int, int, int);
 110 static void copy_mime_draft (int);
 111
 112
 113 int
 114 main (int argc, char **argv)
 115 {
 116     bool anot = false;
 117     bool inplace = true;
 118     bool mime = false;
 119     int issue = 0, volume = 0, dashstuff = 0;
 120     bool nedit = false;
 121     bool nwhat = false;
 122     int i, in;
 123     int out, isdf = 0, msgnum = 0;
 124     int outputlinelen = OUTPUTLINELEN;
 125     int dat[5];
 126     char *cp, *cwd, *maildir, *dfolder = NULL;
 127     char *dmsg = NULL, *digest = NULL, *ed = NULL;
 128     char *file = NULL, *filter = NULL, *folder = NULL, *fwdmsg = NULL;
 129     char *from = NULL, *to = NULL, *cc = NULL, *subject = NULL, *fcc = NULL;
 130     char *form = NULL, buf[BUFSIZ];
 131     char **argp, **arguments;
 132     struct stat st;
 133     struct msgs_array msgs = { 0, 0, NULL };
 134     bool buildsw = false;
 135
 136     if (nmh_init(argv[0], true, true)) { return 1; }
 137
 138     arguments = getarguments (invo_name, argc, argv, 1);
 139     argp = arguments;
 140
 141     while ((cp = *argp++)) {
 142         if (*cp == '-') {
 143             switch (smatch (++cp, switches)) {
 144                 case AMBIGSW:
 145                     ambigsw (cp, switches);
 146                     done (1);
 147                 case UNKWNSW:
 148                     die("-%s unknown", cp);
 149
 150                 case HELPSW:
 151                     snprintf (buf, sizeof(buf), "%s [+folder] [msgs] [switches]",
 152                         invo_name);
 153                     print_help (buf, switches, 1);
 154                     done (0);
 155                 case VERSIONSW:
 156                     print_version(invo_name);
 157                     done (0);
 158
 159                 case ANNOSW:
 160                     anot = true;
 161                     continue;
 162                 case NANNOSW:
 163                     anot = false;
 164                     continue;
 165
 166                 case EDITRSW:
 167                     if (!(ed = *argp++) || *ed == '-')
 168                         die("missing argument to %s", argp[-2]);
 169                     nedit = false;
 170                     continue;
 171                 case NEDITSW:
 172                     nedit = true;
 173                     continue;
 174
 175                 case WHATSW:
 176                     if (!(whatnowproc = *argp++) || *whatnowproc == '-')
 177                         die("missing argument to %s", argp[-2]);
 178                     nwhat = false;
 179                     continue;
 180                 case BILDSW:
 181                     buildsw = true;
 182                     /* FALLTHRU */
 183                 case NWHATSW:
 184                     nwhat = true;
 185                     continue;
 186
 187                 case FILESW:
 188                     if (file)
 189                         die("only one file at a time!");
 190                     if (!(cp = *argp++) || *cp == '-')
 191                         die("missing argument to %s", argp[-2]);
 192                     file = path (cp, TFILE);
 193                     continue;
 194                 case FILTSW:
 195                     if (!(cp = *argp++) || *cp == '-')
 196                         die("missing argument to %s", argp[-2]);
 197                     filter = mh_xstrdup(etcpath(cp));
 198                     mime = false;
 199                     continue;
 200                 case FORMSW:
 201                     if (!(form = *argp++) || *form == '-')
 202                         die("missing argument to %s", argp[-2]);
 203                     continue;
 204
 205                 case FRMTSW:
 206                     filter = mh_xstrdup(etcpath(mhlforward));
 207                     continue;
 208                 case NFRMTSW:
 209                     filter = NULL;
 210                     continue;
 211
 212                 case INPLSW:
 213                     inplace = true;
 214                     continue;
 215                 case NINPLSW:
 216                     inplace = false;
 217                     continue;
 218
 219                 case MIMESW:
 220                     mime = true;
 221                     filter = NULL;
 222                     continue;
 223                 case NMIMESW:
 224                     mime = false;
 225                     continue;
 226
 227                 case DGSTSW:
 228                     if (!(cp = *argp++) || *cp == '-')
 229                         die("missing argument to %s", argp[-2]);
 230                     digest = mh_xstrdup(cp);
 231                     mime = false;
 232                     continue;
 233                 case ISSUESW:
 234                     if (!(cp = *argp++) || *cp == '-')
 235                         die("missing argument to %s", argp[-2]);
 236                     if ((issue = atoi (cp)) < 1)
 237                         die("bad argument %s %s", argp[-2], cp);
 238                     continue;
 239                 case VOLUMSW:
 240                     if (!(cp = *argp++) || *cp == '-')
 241                         die("missing argument to %s", argp[-2]);
 242                     if ((volume = atoi (cp)) < 1)
 243                         die("bad argument %s %s", argp[-2], cp);
 244                     continue;
 245
 246                 case DFOLDSW:
 247                     if (dfolder)
 248                         die("only one draft folder at a time!");
 249                     if (!(cp = *argp++) || *cp == '-')
 250                         die("missing argument to %s", argp[-2]);
 251                     dfolder = path (*cp == '+' || *cp == '@' ? cp + 1 : cp,
 252                                     *cp != '@' ? TFOLDER : TSUBCWF);
 253                     continue;
 254                 case DMSGSW:
 255                     if (dmsg)
 256                         die("only one draft message at a time!");
 257                     if (!(dmsg = *argp++) || *dmsg == '-')
 258                         die("missing argument to %s", argp[-2]);
 259                     continue;
 260                 case NDFLDSW:
 261                     dfolder = NULL;
 262                     isdf = NOTOK;
 263                     continue;
 264
 265                 case BITSTUFFSW:
 266                     dashstuff = 1;      /* ternary logic */
 267                     continue;
 268                 case NBITSTUFFSW:
 269                     dashstuff = -1;     /* ternary logic */
 270                     continue;
 271
 272                 case FROMSW:
 273                     if (!(cp = *argp++) || *cp == '-')
 274                         die("missing argument to %s", argp[-2]);
 275                     from = addlist(from, cp);
 276                     continue;
 277                 case TOSW:
 278                     if (!(cp = *argp++) || *cp == '-')
 279                         die("missing argument to %s", argp[-2]);
 280                     to = addlist(to, cp);
 281                     continue;
 282                 case CCSW:
 283                     if (!(cp = *argp++) || *cp == '-')
 284                         die("missing argument to %s", argp[-2]);
 285                     cc = addlist(cc, cp);
 286                     continue;
 287                 case FCCSW:
 288                     if (!(cp = *argp++) || *cp == '-')
 289                         die("missing argument to %s", argp[-2]);
 290                     fcc = addlist(fcc, cp);
 291                     continue;
 292                 case SUBJECTSW:
 293                     if (!(cp = *argp++) || *cp == '-')
 294                         die("missing argument to %s", argp[-2]);
 295                     subject = mh_xstrdup(cp);
 296                     continue;
 297
 298                 case WIDTHSW:
 299                     if (!(cp = *argp++) || *cp == '-')
 300                         die("missing argument to %s", argp[-2]);
 301                     if ((outputlinelen = atoi(cp)) < 10)
 302                         die("impossible width %d", outputlinelen);
 303                     continue;
 304             }
 305         }
 306         if (*cp == '+' || *cp == '@') {
 307             if (folder)
 308                 die("only one folder at a time!");
 309             folder = pluspath (cp);
 310         } else {
 311             app_msgarg(&msgs, cp);
 312         }
 313     }
 314
 315     cwd = mh_xstrdup(pwd ());
 316
 317     if (!context_find ("path"))
 318         free (path ("./", TFOLDER));
 319     if (file && (msgs.size || folder))
 320         die("can't mix files and folders/msgs");
 321
 322 try_it_again:
 323
 324     strncpy (drft, buildsw ? m_maildir ("draft")
 325                           : m_draft (dfolder, NULL, NOUSE, &isdf), sizeof(drft));
 326
 327     /* Check if a draft already exists */
 328     if (!buildsw && stat (drft, &st) != NOTOK) {
 329         printf ("Draft \"%s\" exists (%ld bytes).", drft, (long) st.st_size);
 330         for (i = LISTDSW; i != YESW;) {
 331             if (!(argp = read_switch_multiword ("\nDisposition? ",
 332                                                 isdf ? aqrnl : aqrl)))
 333                 done (1);
 334             switch (i = smatch (*argp, isdf ? aqrnl : aqrl)) {
 335                 case NOSW:
 336                     done (0);
 337                 case NEWSW:
 338                     dmsg = NULL;
 339                     goto try_it_again;
 340                 case YESW:
 341                     break;
 342                 case LISTDSW:
 343                     showfile (++argp, drft);
 344                     break;
 345                 case REFILSW:
 346                     if (refile (++argp, drft) == 0)
 347                         i = YESW;
 348                     break;
 349                 default:
 350                     inform("say what?");
 351                     break;
 352             }
 353         }
 354     }
 355
 356     if (file) {
 357         /*
 358          * Forwarding a file.
 359          */
 360         anot = false;   /* don't want to annotate a file */
 361     } else {
 362         /*
 363          * Forwarding a message.
 364          */
 365         if (!msgs.size)
 366             app_msgarg(&msgs, "cur");
 367         if (!folder)
 368             folder = getfolder (1);
 369         maildir = m_maildir (folder);
 370
 371         if (chdir (maildir) == NOTOK)
 372             adios (maildir, "unable to change directory to");
 373
 374         /* read folder and create message structure */
 375         if (!(mp = folder_read (folder, 1)))
 376             die("unable to read folder %s", folder);
 377
 378         /* check for empty folder */
 379         if (mp->nummsg == 0)
 380             die("no messages in %s", folder);
 381
 382         /* parse all the message ranges/sequences and set SELECTED */
 383         for (msgnum = 0; msgnum < msgs.size; msgnum++)
 384             if (!m_convert (mp, msgs.msgs[msgnum]))
 385                 done (1);
 386
 387         seq_setprev (mp);       /* set the previous sequence */
 388
 389         /*
 390          * Find the first message in our set and use it as the input
 391          * for the component scanner
 392          */
 393
 394         for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++)
 395             if (is_selected (mp, msgnum)) {
 396                 fwdmsg = mh_xstrdup(m_name(msgnum));
 397                 break;
 398             }
 399
 400         if (! fwdmsg)
 401             die("Unable to find input message");
 402     }
 403
 404     if (filter && access (filter, R_OK) == NOTOK)
 405         adios (filter, "unable to read");
 406
 407     /*
 408      * Open form (component) file.
 409      */
 410     if (digest) {
 411         if (issue == 0) {
 412             snprintf (buf, sizeof(buf), IFORMAT, digest);
 413             if (volume == 0
 414                     && (cp = context_find (buf))
 415                     && ((issue = atoi (cp)) < 0))
 416                 issue = 0;
 417             issue++;
 418         }
 419         if (volume == 0) {
 420             snprintf (buf, sizeof(buf), VFORMAT, digest);
 421             if ((cp = context_find (buf)) == NULL || (volume = atoi (cp)) <= 0)
 422                 volume = 1;
 423         }
 424         if (!form)
 425             form = digestcomps;
 426     } else {
 427         if (!form)
 428             form = forwcomps;
 429     }
 430
 431     dat[0] = digest ? issue : msgnum;
 432     dat[1] = volume;
 433     dat[2] = 0;
 434     dat[3] = outputlinelen;
 435     dat[4] = 0;
 436
 437
 438     in = build_form (form, digest, dat, from, to, cc, fcc, subject,
 439                      file ? file : fwdmsg);
 440
 441     if ((out = creat (drft, m_gmprot ())) == NOTOK)
 442         adios (drft, "unable to create");
 443
 444     /*
 445      * copy the components into the draft
 446      */
 447     cpydata (in, out, form, drft);
 448     close (in);
 449
 450     if (file) {
 451         /* just copy the file into the draft */
 452         if ((in = open (file, O_RDONLY)) == NOTOK)
 453             adios (file, "unable to open");
 454         cpydata (in, out, file, drft);
 455         close (in);
 456         close (out);
 457     } else {
 458         /*
 459          * If filter file is defined, then format the
 460          * messages into the draft using mhlproc.
 461          */
 462         if (filter)
 463             mhl_draft (out, digest, volume, issue, drft, filter, dashstuff);
 464         else if (mime)
 465             copy_mime_draft (out);
 466         else
 467             copy_draft (out, digest, drft, volume, issue, dashstuff);
 468         close (out);
 469
 470         if (digest) {
 471             snprintf (buf, sizeof(buf), IFORMAT, digest);
 472             context_replace (buf, mh_xstrdup(m_str(issue)));
 473             snprintf (buf, sizeof(buf), VFORMAT, digest);
 474             context_replace (buf, mh_xstrdup(m_str(volume)));
 475         }
 476
 477         context_replace (pfolder, folder);      /* update current folder   */
 478         seq_setcur (mp, mp->lowsel);            /* update current message  */
 479         seq_save (mp);                          /* synchronize sequences   */
 480         context_save ();                        /* save the context file   */
 481     }
 482
 483     if (nwhat)
 484         done (0);
 485     what_now (ed, nedit, NOUSE, drft, NULL, 0, mp,
 486         anot ? "Forwarded" : NULL, inplace, cwd, 0);
 487     done (1);
 488     return 1;
 489 }
 490
 491
 492 /*
 493  * Filter the messages you are forwarding, into the
 494  * draft calling the mhlproc, and reading its output
 495  * from a pipe.
 496  */
 497
 498 static void
 499 mhl_draft (int out, char *digest, int volume, int issue,
 500             char *file, char *filter, int dashstuff)
 501 {
 502     pid_t child_id;
 503     int msgnum, pd[2];
 504     char buf1[BUFSIZ];
 505     char buf2[BUFSIZ];
 506     char *program;
 507     struct msgs_array vec = { 0, 0, NULL };
 508
 509     if (pipe (pd) == NOTOK)
 510         adios ("pipe", "unable to create");
 511
 512     argsplit_msgarg(&vec, mhlproc, &program);
 513
 514     child_id = fork();
 515     switch (child_id) {
 516         case NOTOK:
 517             adios ("fork", "unable to");
 518
 519         case OK:
 520             close (pd[0]);
 521             dup2 (pd[1], 1);
 522             close (pd[1]);
 523
 524             app_msgarg(&vec, "-forwall");
 525             app_msgarg(&vec, "-form");
 526             app_msgarg(&vec, filter);
 527
 528             if (digest) {
 529                 app_msgarg(&vec, "-digest");
 530                 app_msgarg(&vec, digest);
 531                 app_msgarg(&vec, "-issue");
 532                 snprintf (buf1, sizeof(buf1), "%d", issue);
 533                 app_msgarg(&vec, buf1);
 534                 app_msgarg(&vec, "-volume");
 535                 snprintf (buf2, sizeof(buf2), "%d", volume);
 536                 app_msgarg(&vec, buf2);
 537             }
 538
 539             /*
 540              * Are we dashstuffing (quoting) the lines that begin
 541              * with `-'.  We use the mhl default (don't add any flag)
 542              * unless the user has specified a specific flag.
 543              */
 544             if (dashstuff > 0)
 545                 app_msgarg(&vec, "-dashstuffing");
 546             else if (dashstuff < 0)
 547                 app_msgarg(&vec, "-nodashstuffing");
 548
 549             for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++) {
 550                 if (is_selected (mp, msgnum))
 551                     app_msgarg(&vec, mh_xstrdup(m_name (msgnum)));
 552             }
 553
 554             app_msgarg(&vec, NULL);
 555
 556             execvp (program, vec.msgs);
 557             fprintf (stderr, "unable to exec ");
 558             perror (mhlproc);
 559             _exit(1);
 560
 561         default:
 562             close (pd[1]);
 563             cpydata (pd[0], out, vec.msgs[0], file);
 564             close (pd[0]);
 565             pidXwait(child_id, mhlproc);
 566             break;
 567     }
 568 }
 569
 570
 571 /*
 572  * Copy the messages into the draft.  The messages are
 573  * not filtered through the mhlproc.  Do dashstuffing if
 574  * necessary.
 575  */
 576
 577 static void
 578 copy_draft (int out, char *digest, char *file, int volume, int issue, int dashstuff)
 579 {
 580     int fd,i, msgcnt, msgnum;
 581     int len, buflen;
 582     char *bp, *msgnam;
 583     char buffer[BUFSIZ];
 584
 585     msgcnt = 1;
 586     for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++) {
 587         if (is_selected (mp, msgnum)) {
 588             if (digest) {
 589                 strncpy (buffer, msgnum == mp->lowsel ? delim3 : delim4,
 590                         sizeof(buffer));
 591             } else {
 592                 /* Get buffer ready to go */
 593                 bp = buffer;
 594                 buflen = sizeof(buffer);
 595
 596                 strncpy (bp, "\n-------", buflen);
 597                 len = strlen (bp);
 598                 bp += len;
 599                 buflen -= len;
 600
 601                 if (msgnum == mp->lowsel) {
 602                     snprintf (bp, buflen, " Forwarded Message%s",
 603                         PLURALS(mp->numsel));
 604                 } else {
 605                     snprintf (bp, buflen, " Message %d", msgcnt);
 606                 }
 607                 len = strlen (bp);
 608                 bp += len;
 609                 buflen -= len;
 610
 611                 strncpy (bp, "\n\n", buflen);
 612             }
 613             if (write (out, buffer, strlen (buffer)) < 0) {
 614                 advise (drft, "write");
 615             }
 616
 617             if ((fd = open (msgnam = m_name (msgnum), O_RDONLY)) == NOTOK) {
 618                 admonish (msgnam, "unable to read message");
 619                 continue;
 620             }
 621
 622             /*
 623              * Copy the message.  Add RFC934 quoting (dashstuffing)
 624              * unless given the -nodashstuffing flag.
 625              */
 626             if (dashstuff >= 0)
 627                 cpydgst (fd, out, msgnam, file);
 628             else
 629                 cpydata (fd, out, msgnam, file);
 630
 631             close (fd);
 632             msgcnt++;
 633         }
 634     }
 635
 636     if (digest) {
 637         strncpy (buffer, delim4, sizeof(buffer));
 638     } else {
 639         snprintf (buffer, sizeof(buffer), "\n------- End of Forwarded Message%s\n",
 640                 PLURALS(mp->numsel));
 641     }
 642     if (write (out, buffer, strlen (buffer)) < 0) {
 643         advise (drft, "write");
 644     }
 645
 646     if (digest) {
 647         snprintf (buffer, sizeof(buffer), "End of %s Digest [Volume %d Issue %d]\n",
 648                 digest, volume, issue);
 649         i = strlen (buffer);
 650         for (bp = buffer + i; i > 1; i--)
 651             *bp++ = '*';
 652         *bp++ = '\n';
 653         *bp = 0;
 654         if (write (out, buffer, strlen (buffer)) < 0) {
 655             advise (drft, "write");
 656         }
 657     }
 658 }
 659
 660
 661 /*
 662  * Create a mhn composition file for forwarding message.
 663  */
 664
 665 static void
 666 copy_mime_draft (int out)
 667 {
 668     int msgnum;
 669     char buffer[BUFSIZ];
 670
 671     snprintf (buffer, sizeof(buffer), "#forw [forwarded message%s] +%s",
 672         PLURALS(mp->numsel), mp->foldpath);
 673     if (write (out, buffer, strlen (buffer)) < 0) {
 674         advise (drft, "write");
 675     }
 676     for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++)
 677         if (is_selected (mp, msgnum)) {
 678             snprintf (buffer, sizeof(buffer), " %s", m_name (msgnum));
 679             if (write (out, buffer, strlen (buffer)) < 0) {
 680                 advise (drft, "write");
 681             }
 682         }
 683     if (write (out, "\n", 1) < 0) {
 684         advise (drft, "write newline");
 685     }
 686 }