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/folder_read.h"
  10 #include "sbr/context_save.h"
  11 #include "sbr/context_replace.h"
  12 #include "sbr/context_find.h"
  13 #include "sbr/ambigsw.h"
  14 #include "sbr/pidstatus.h"
  15 #include "sbr/path.h"
  16 #include "sbr/print_version.h"
  17 #include "sbr/print_help.h"
  18 #include "sbr/arglist.h"
  19 #include "sbr/error.h"
  20 #include <fcntl.h>
  21 #include "h/tws.h"
  22 #include "h/done.h"
  23 #include "h/utils.h"
  24 #include "sbr/m_maildir.h"
  25 #include "forwsbr.h"
  26
  27
  28 #define IFORMAT "digest-issue-%s"
  29 #define VFORMAT "digest-volume-%s"
  30
  31 #define FORW_SWITCHES \
  32     X("annotate", 0, ANNOSW) \
  33     X("noannotate", 0, NANNOSW) \
  34     X("draftfolder +folder", 0, DFOLDSW) \
  35     X("draftmessage msg", 0, DMSGSW) \
  36     X("nodraftfolder", 0, NDFLDSW) \
  37     X("editor editor", 0, EDITRSW) \
  38     X("noedit", 0, NEDITSW) \
  39     X("filter filterfile", 0, FILTSW) \
  40     X("form formfile", 0, FORMSW) \
  41     X("format", 5, FRMTSW) \
  42     X("noformat", 7, NFRMTSW) \
  43     X("inplace", 0, INPLSW) \
  44     X("noinplace", 0, NINPLSW) \
  45     X("mime", 0, MIMESW) \
  46     X("nomime", 0, NMIMESW) \
  47     X("digest list", 0, DGSTSW) \
  48     X("issue number", 0, ISSUESW) \
  49     X("volume number", 0, VOLUMSW) \
  50     X("whatnowproc program", 0, WHATSW) \
  51     X("nowhatnowproc", 0, NWHATSW) \
  52     X("dashstuffing", 0, BITSTUFFSW)          /* interface to mhl */ \
  53     X("nodashstuffing", 0, NBITSTUFFSW) \
  54     X("version", 0, VERSIONSW) \
  55     X("help", 0, HELPSW) \
  56     X("file file", 4, FILESW) \
  57     X("build", 5, BILDSW)                     /* interface from mhe */ \
  58     X("from address", 0, FROMSW) \
  59     X("to address", 0, TOSW) \
  60     X("cc address", 0, CCSW) \
  61     X("subject text", 0, SUBJECTSW) \
  62     X("fcc mailbox", 0, FCCSW) \
  63     X("width columns", 0, WIDTHSW) \
  64
  65 #define X(sw, minchars, id) id,
  66 DEFINE_SWITCH_ENUM(FORW);
  67 #undef X
  68
  69 #define X(sw, minchars, id) { sw, minchars, id },
  70 DEFINE_SWITCH_ARRAY(FORW, switches);
  71 #undef X
  72
  73 #define DISPO_SWITCHES \
  74     X("quit", 0, NOSW) \
  75     X("replace", 0, YESW) \
  76     X("list", 0, LISTDSW) \
  77     X("refile +folder", 0, REFILSW) \
  78     X("new", 0, NEWSW) \
  79
  80 #define X(sw, minchars, id) id,
  81 DEFINE_SWITCH_ENUM(DISPO);
  82 #undef X
  83
  84 #define X(sw, minchars, id) { sw, minchars, id },
  85 DEFINE_SWITCH_ARRAY(DISPO, aqrnl);
  86 #undef X
  87
  88 static struct swit aqrl[] = {
  89     { "quit", 0, NOSW },
  90     { "replace", 0, YESW },
  91     { "list", 0, LISTDSW },
  92     { "refile +folder", 0, REFILSW },
  93     { NULL, 0, 0 }
  94 };
  95
  96 static char drft[BUFSIZ];
  97
  98 static char delim3[] =
  99     "\n------------------------------------------------------------\n\n";
 100 static char delim4[] = "\n------------------------------\n\n";
 101
 102
 103 static struct msgs *mp = NULL;          /* used a lot */
 104
 105
 106 /*
 107  * static prototypes
 108  */
 109 static void mhl_draft (int, char *, int, int, char *, char *, int);
 110 static void copy_draft (int, char *, char *, int, int, int);
 111 static void copy_mime_draft (int);
 112
 113
 114 int
 115 main (int argc, char **argv)
 116 {
 117     bool anot = false;
 118     bool inplace = true;
 119     bool mime = false;
 120     int issue = 0, volume = 0, dashstuff = 0;
 121     bool nedit = false;
 122     bool nwhat = false;
 123     int i, in;
 124     int out, isdf = 0, msgnum = 0;
 125     int outputlinelen = OUTPUTLINELEN;
 126     int dat[5];
 127     char *cp, *cwd, *maildir, *dfolder = NULL;
 128     char *dmsg = NULL, *digest = NULL, *ed = NULL;
 129     char *file = NULL, *filter = NULL, *folder = NULL, *fwdmsg = NULL;
 130     char *from = NULL, *to = NULL, *cc = NULL, *subject = NULL, *fcc = NULL;
 131     char *form = NULL, buf[BUFSIZ];
 132     char **argp, **arguments;
 133     struct stat st;
 134     struct msgs_array msgs = { 0, 0, NULL };
 135     bool buildsw = false;
 136
 137     if (nmh_init(argv[0], true, true)) { return 1; }
 138
 139     arguments = getarguments (invo_name, argc, argv, 1);
 140     argp = arguments;
 141
 142     while ((cp = *argp++)) {
 143         if (*cp == '-') {
 144             switch (smatch (++cp, switches)) {
 145                 case AMBIGSW:
 146                     ambigsw (cp, switches);
 147                     done (1);
 148                 case UNKWNSW:
 149                     die("-%s unknown", cp);
 150
 151                 case HELPSW:
 152                     snprintf (buf, sizeof(buf), "%s [+folder] [msgs] [switches]",
 153                         invo_name);
 154                     print_help (buf, switches, 1);
 155                     done (0);
 156                 case VERSIONSW:
 157                     print_version(invo_name);
 158                     done (0);
 159
 160                 case ANNOSW:
 161                     anot = true;
 162                     continue;
 163                 case NANNOSW:
 164                     anot = false;
 165                     continue;
 166
 167                 case EDITRSW:
 168                     if (!(ed = *argp++) || *ed == '-')
 169                         die("missing argument to %s", argp[-2]);
 170                     nedit = false;
 171                     continue;
 172                 case NEDITSW:
 173                     nedit = true;
 174                     continue;
 175
 176                 case WHATSW:
 177                     if (!(whatnowproc = *argp++) || *whatnowproc == '-')
 178                         die("missing argument to %s", argp[-2]);
 179                     nwhat = false;
 180                     continue;
 181                 case BILDSW:
 182                     buildsw = true;
 183                     /* FALLTHRU */
 184                 case NWHATSW:
 185                     nwhat = true;
 186                     continue;
 187
 188                 case FILESW:
 189                     if (file)
 190                         die("only one file at a time!");
 191                     if (!(cp = *argp++) || *cp == '-')
 192                         die("missing argument to %s", argp[-2]);
 193                     file = path (cp, TFILE);
 194                     continue;
 195                 case FILTSW:
 196                     if (!(cp = *argp++) || *cp == '-')
 197                         die("missing argument to %s", argp[-2]);
 198                     filter = mh_xstrdup(etcpath(cp));
 199                     mime = false;
 200                     continue;
 201                 case FORMSW:
 202                     if (!(form = *argp++) || *form == '-')
 203                         die("missing argument to %s", argp[-2]);
 204                     continue;
 205
 206                 case FRMTSW:
 207                     filter = mh_xstrdup(etcpath(mhlforward));
 208                     continue;
 209                 case NFRMTSW:
 210                     filter = NULL;
 211                     continue;
 212
 213                 case INPLSW:
 214                     inplace = true;
 215                     continue;
 216                 case NINPLSW:
 217                     inplace = false;
 218                     continue;
 219
 220                 case MIMESW:
 221                     mime = true;
 222                     filter = NULL;
 223                     continue;
 224                 case NMIMESW:
 225                     mime = false;
 226                     continue;
 227
 228                 case DGSTSW:
 229                     if (!(cp = *argp++) || *cp == '-')
 230                         die("missing argument to %s", argp[-2]);
 231                     digest = mh_xstrdup(cp);
 232                     mime = false;
 233                     continue;
 234                 case ISSUESW:
 235                     if (!(cp = *argp++) || *cp == '-')
 236                         die("missing argument to %s", argp[-2]);
 237                     if ((issue = atoi (cp)) < 1)
 238                         die("bad argument %s %s", argp[-2], cp);
 239                     continue;
 240                 case VOLUMSW:
 241                     if (!(cp = *argp++) || *cp == '-')
 242                         die("missing argument to %s", argp[-2]);
 243                     if ((volume = atoi (cp)) < 1)
 244                         die("bad argument %s %s", argp[-2], cp);
 245                     continue;
 246
 247                 case DFOLDSW:
 248                     if (dfolder)
 249                         die("only one draft folder at a time!");
 250                     if (!(cp = *argp++) || *cp == '-')
 251                         die("missing argument to %s", argp[-2]);
 252                     dfolder = path (*cp == '+' || *cp == '@' ? cp + 1 : cp,
 253                                     *cp != '@' ? TFOLDER : TSUBCWF);
 254                     continue;
 255                 case DMSGSW:
 256                     if (dmsg)
 257                         die("only one draft message at a time!");
 258                     if (!(dmsg = *argp++) || *dmsg == '-')
 259                         die("missing argument to %s", argp[-2]);
 260                     continue;
 261                 case NDFLDSW:
 262                     dfolder = NULL;
 263                     isdf = NOTOK;
 264                     continue;
 265
 266                 case BITSTUFFSW:
 267                     dashstuff = 1;      /* ternary logic */
 268                     continue;
 269                 case NBITSTUFFSW:
 270                     dashstuff = -1;     /* ternary logic */
 271                     continue;
 272
 273                 case FROMSW:
 274                     if (!(cp = *argp++) || *cp == '-')
 275                         die("missing argument to %s", argp[-2]);
 276                     from = addlist(from, cp);
 277                     continue;
 278                 case TOSW:
 279                     if (!(cp = *argp++) || *cp == '-')
 280                         die("missing argument to %s", argp[-2]);
 281                     to = addlist(to, cp);
 282                     continue;
 283                 case CCSW:
 284                     if (!(cp = *argp++) || *cp == '-')
 285                         die("missing argument to %s", argp[-2]);
 286                     cc = addlist(cc, cp);
 287                     continue;
 288                 case FCCSW:
 289                     if (!(cp = *argp++) || *cp == '-')
 290                         die("missing argument to %s", argp[-2]);
 291                     fcc = addlist(fcc, cp);
 292                     continue;
 293                 case SUBJECTSW:
 294                     if (!(cp = *argp++) || *cp == '-')
 295                         die("missing argument to %s", argp[-2]);
 296                     subject = mh_xstrdup(cp);
 297                     continue;
 298
 299                 case WIDTHSW:
 300                     if (!(cp = *argp++) || *cp == '-')
 301                         die("missing argument to %s", argp[-2]);
 302                     if ((outputlinelen = atoi(cp)) < 10)
 303                         die("impossible width %d", outputlinelen);
 304                     continue;
 305             }
 306         }
 307         if (*cp == '+' || *cp == '@') {
 308             if (folder)
 309                 die("only one folder at a time!");
 310             folder = pluspath (cp);
 311         } else {
 312             app_msgarg(&msgs, cp);
 313         }
 314     }
 315
 316     cwd = mh_xstrdup(pwd ());
 317
 318     if (!context_find ("path"))
 319         free (path ("./", TFOLDER));
 320     if (file && (msgs.size || folder))
 321         die("can't mix files and folders/msgs");
 322
 323 try_it_again:
 324
 325     strncpy (drft, buildsw ? m_maildir ("draft")
 326                           : m_draft (dfolder, NULL, NOUSE, &isdf), sizeof(drft));
 327
 328     /* Check if a draft already exists */
 329     if (!buildsw && stat (drft, &st) != NOTOK) {
 330         printf ("Draft \"%s\" exists (%ld bytes).", drft, (long) st.st_size);
 331         for (i = LISTDSW; i != YESW;) {
 332             if (!(argp = read_switch_multiword ("\nDisposition? ",
 333                                                 isdf ? aqrnl : aqrl)))
 334                 done (1);
 335             switch (i = smatch (*argp, isdf ? aqrnl : aqrl)) {
 336                 case NOSW:
 337                     done (0);
 338                 case NEWSW:
 339                     dmsg = NULL;
 340                     goto try_it_again;
 341                 case YESW:
 342                     break;
 343                 case LISTDSW:
 344                     showfile (++argp, drft);
 345                     break;
 346                 case REFILSW:
 347                     if (refile (++argp, drft) == 0)
 348                         i = YESW;
 349                     break;
 350                 default:
 351                     inform("say what?");
 352                     break;
 353             }
 354         }
 355     }
 356
 357     if (file) {
 358         /*
 359          * Forwarding a file.
 360          */
 361         anot = false;   /* don't want to annotate a file */
 362     } else {
 363         /*
 364          * Forwarding a message.
 365          */
 366         if (!msgs.size)
 367             app_msgarg(&msgs, "cur");
 368         if (!folder)
 369             folder = getfolder (1);
 370         maildir = m_maildir (folder);
 371
 372         if (chdir (maildir) == NOTOK)
 373             adios (maildir, "unable to change directory to");
 374
 375         /* read folder and create message structure */
 376         if (!(mp = folder_read (folder, 1)))
 377             die("unable to read folder %s", folder);
 378
 379         /* check for empty folder */
 380         if (mp->nummsg == 0)
 381             die("no messages in %s", folder);
 382
 383         /* parse all the message ranges/sequences and set SELECTED */
 384         for (msgnum = 0; msgnum < msgs.size; msgnum++)
 385             if (!m_convert (mp, msgs.msgs[msgnum]))
 386                 done (1);
 387
 388         seq_setprev (mp);       /* set the previous sequence */
 389
 390         /*
 391          * Find the first message in our set and use it as the input
 392          * for the component scanner
 393          */
 394
 395         for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++)
 396             if (is_selected (mp, msgnum)) {
 397                 fwdmsg = mh_xstrdup(m_name(msgnum));
 398                 break;
 399             }
 400
 401         if (! fwdmsg)
 402             die("Unable to find input message");
 403     }
 404
 405     if (filter && access (filter, R_OK) == NOTOK)
 406         adios (filter, "unable to read");
 407
 408     /*
 409      * Open form (component) file.
 410      */
 411     if (digest) {
 412         if (issue == 0) {
 413             snprintf (buf, sizeof(buf), IFORMAT, digest);
 414             if (volume == 0
 415                     && (cp = context_find (buf))
 416                     && ((issue = atoi (cp)) < 0))
 417                 issue = 0;
 418             issue++;
 419         }
 420         if (volume == 0) {
 421             snprintf (buf, sizeof(buf), VFORMAT, digest);
 422             if ((cp = context_find (buf)) == NULL || (volume = atoi (cp)) <= 0)
 423                 volume = 1;
 424         }
 425         if (!form)
 426             form = digestcomps;
 427     } else {
 428         if (!form)
 429             form = forwcomps;
 430     }
 431
 432     dat[0] = digest ? issue : msgnum;
 433     dat[1] = volume;
 434     dat[2] = 0;
 435     dat[3] = outputlinelen;
 436     dat[4] = 0;
 437
 438
 439     in = build_form (form, digest, dat, from, to, cc, fcc, subject,
 440                      file ? file : fwdmsg);
 441
 442     if ((out = creat (drft, m_gmprot ())) == NOTOK)
 443         adios (drft, "unable to create");
 444
 445     /*
 446      * copy the components into the draft
 447      */
 448     cpydata (in, out, form, drft);
 449     close (in);
 450
 451     if (file) {
 452         /* just copy the file into the draft */
 453         if ((in = open (file, O_RDONLY)) == NOTOK)
 454             adios (file, "unable to open");
 455         cpydata (in, out, file, drft);
 456         close (in);
 457         close (out);
 458     } else {
 459         /*
 460          * If filter file is defined, then format the
 461          * messages into the draft using mhlproc.
 462          */
 463         if (filter)
 464             mhl_draft (out, digest, volume, issue, drft, filter, dashstuff);
 465         else if (mime)
 466             copy_mime_draft (out);
 467         else
 468             copy_draft (out, digest, drft, volume, issue, dashstuff);
 469         close (out);
 470
 471         if (digest) {
 472             snprintf (buf, sizeof(buf), IFORMAT, digest);
 473             context_replace (buf, mh_xstrdup(m_str(issue)));
 474             snprintf (buf, sizeof(buf), VFORMAT, digest);
 475             context_replace (buf, mh_xstrdup(m_str(volume)));
 476         }
 477
 478         context_replace (pfolder, folder);      /* update current folder   */
 479         seq_setcur (mp, mp->lowsel);            /* update current message  */
 480         seq_save (mp);                          /* synchronize sequences   */
 481         context_save ();                        /* save the context file   */
 482     }
 483
 484     if (nwhat)
 485         done (0);
 486     what_now (ed, nedit, NOUSE, drft, NULL, 0, mp,
 487         anot ? "Forwarded" : NULL, inplace, cwd, 0);
 488     done (1);
 489     return 1;
 490 }
 491
 492
 493 /*
 494  * Filter the messages you are forwarding, into the
 495  * draft calling the mhlproc, and reading its output
 496  * from a pipe.
 497  */
 498
 499 static void
 500 mhl_draft (int out, char *digest, int volume, int issue,
 501             char *file, char *filter, int dashstuff)
 502 {
 503     pid_t child_id;
 504     int msgnum, pd[2];
 505     char buf1[BUFSIZ];
 506     char buf2[BUFSIZ];
 507     char *program;
 508     struct msgs_array vec = { 0, 0, NULL };
 509
 510     if (pipe (pd) == NOTOK)
 511         adios ("pipe", "unable to create");
 512
 513     argsplit_msgarg(&vec, mhlproc, &program);
 514
 515     child_id = fork();
 516     switch (child_id) {
 517         case NOTOK:
 518             adios ("fork", "unable to");
 519
 520         case OK:
 521             close (pd[0]);
 522             dup2 (pd[1], 1);
 523             close (pd[1]);
 524
 525             app_msgarg(&vec, "-forwall");
 526             app_msgarg(&vec, "-form");
 527             app_msgarg(&vec, filter);
 528
 529             if (digest) {
 530                 app_msgarg(&vec, "-digest");
 531                 app_msgarg(&vec, digest);
 532                 app_msgarg(&vec, "-issue");
 533                 snprintf (buf1, sizeof(buf1), "%d", issue);
 534                 app_msgarg(&vec, buf1);
 535                 app_msgarg(&vec, "-volume");
 536                 snprintf (buf2, sizeof(buf2), "%d", volume);
 537                 app_msgarg(&vec, buf2);
 538             }
 539
 540             /*
 541              * Are we dashstuffing (quoting) the lines that begin
 542              * with `-'.  We use the mhl default (don't add any flag)
 543              * unless the user has specified a specific flag.
 544              */
 545             if (dashstuff > 0)
 546                 app_msgarg(&vec, "-dashstuffing");
 547             else if (dashstuff < 0)
 548                 app_msgarg(&vec, "-nodashstuffing");
 549
 550             for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++) {
 551                 if (is_selected (mp, msgnum))
 552                     app_msgarg(&vec, mh_xstrdup(m_name (msgnum)));
 553             }
 554
 555             app_msgarg(&vec, NULL);
 556
 557             execvp (program, vec.msgs);
 558             fprintf (stderr, "unable to exec ");
 559             perror (mhlproc);
 560             _exit(1);
 561
 562         default:
 563             close (pd[1]);
 564             cpydata (pd[0], out, vec.msgs[0], file);
 565             close (pd[0]);
 566             pidXwait(child_id, mhlproc);
 567             break;
 568     }
 569 }
 570
 571
 572 /*
 573  * Copy the messages into the draft.  The messages are
 574  * not filtered through the mhlproc.  Do dashstuffing if
 575  * necessary.
 576  */
 577
 578 static void
 579 copy_draft (int out, char *digest, char *file, int volume, int issue, int dashstuff)
 580 {
 581     int fd,i, msgcnt, msgnum;
 582     int len, buflen;
 583     char *bp, *msgnam;
 584     char buffer[BUFSIZ];
 585
 586     msgcnt = 1;
 587     for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++) {
 588         if (is_selected (mp, msgnum)) {
 589             if (digest) {
 590                 strncpy (buffer, msgnum == mp->lowsel ? delim3 : delim4,
 591                         sizeof(buffer));
 592             } else {
 593                 /* Get buffer ready to go */
 594                 bp = buffer;
 595                 buflen = sizeof(buffer);
 596
 597                 strncpy (bp, "\n-------", buflen);
 598                 len = strlen (bp);
 599                 bp += len;
 600                 buflen -= len;
 601
 602                 if (msgnum == mp->lowsel) {
 603                     snprintf (bp, buflen, " Forwarded Message%s",
 604                         PLURALS(mp->numsel));
 605                 } else {
 606                     snprintf (bp, buflen, " Message %d", msgcnt);
 607                 }
 608                 len = strlen (bp);
 609                 bp += len;
 610                 buflen -= len;
 611
 612                 strncpy (bp, "\n\n", buflen);
 613             }
 614             if (write (out, buffer, strlen (buffer)) < 0) {
 615                 advise (drft, "write");
 616             }
 617
 618             if ((fd = open (msgnam = m_name (msgnum), O_RDONLY)) == NOTOK) {
 619                 admonish (msgnam, "unable to read message");
 620                 continue;
 621             }
 622
 623             /*
 624              * Copy the message.  Add RFC934 quoting (dashstuffing)
 625              * unless given the -nodashstuffing flag.
 626              */
 627             if (dashstuff >= 0)
 628                 cpydgst (fd, out, msgnam, file);
 629             else
 630                 cpydata (fd, out, msgnam, file);
 631
 632             close (fd);
 633             msgcnt++;
 634         }
 635     }
 636
 637     if (digest) {
 638         strncpy (buffer, delim4, sizeof(buffer));
 639     } else {
 640         snprintf (buffer, sizeof(buffer), "\n------- End of Forwarded Message%s\n",
 641                 PLURALS(mp->numsel));
 642     }
 643     if (write (out, buffer, strlen (buffer)) < 0) {
 644         advise (drft, "write");
 645     }
 646
 647     if (digest) {
 648         snprintf (buffer, sizeof(buffer), "End of %s Digest [Volume %d Issue %d]\n",
 649                 digest, volume, issue);
 650         i = strlen (buffer);
 651         for (bp = buffer + i; i > 1; i--)
 652             *bp++ = '*';
 653         *bp++ = '\n';
 654         *bp = 0;
 655         if (write (out, buffer, strlen (buffer)) < 0) {
 656             advise (drft, "write");
 657         }
 658     }
 659 }
 660
 661
 662 /*
 663  * Create a mhn composition file for forwarding message.
 664  */
 665
 666 static void
 667 copy_mime_draft (int out)
 668 {
 669     int msgnum;
 670     char buffer[BUFSIZ];
 671
 672     snprintf (buffer, sizeof(buffer), "#forw [forwarded message%s] +%s",
 673         PLURALS(mp->numsel), mp->foldpath);
 674     if (write (out, buffer, strlen (buffer)) < 0) {
 675         advise (drft, "write");
 676     }
 677     for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++)
 678         if (is_selected (mp, msgnum)) {
 679             snprintf (buffer, sizeof(buffer), " %s", m_name (msgnum));
 680             if (write (out, buffer, strlen (buffer)) < 0) {
 681                 advise (drft, "write");
 682             }
 683         }
 684     if (write (out, "\n", 1) < 0) {
 685         advise (drft, "write newline");
 686     }
 687 }