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

   1
   2 /*
   3  * forw.c -- forward a message, or group of messages.
   4  *
   5  * $Id$
   6  */
   7
   8 #include <h/mh.h>
   9 #include <fcntl.h>
  10 #include <h/fmt_scan.h>
  11 #include <zotnet/tws/tws.h>
  12
  13
  14 #define IFORMAT "digest-issue-%s"
  15 #define VFORMAT "digest-volume-%s"
  16
  17 static struct swit switches[] = {
  18 #define ANNOSW                 0
  19     { "annotate", 0 },
  20 #define NANNOSW                1
  21     { "noannotate", 0 },
  22 #define DFOLDSW                2
  23     { "draftfolder +folder", 0 },
  24 #define DMSGSW                 3
  25     { "draftmessage msg", 0 },
  26 #define NDFLDSW                4
  27     { "nodraftfolder", 0 },
  28 #define EDITRSW                5
  29     { "editor editor", 0 },
  30 #define NEDITSW                6
  31     { "noedit", 0 },
  32 #define FILTSW                 7
  33     { "filter filterfile", 0 },
  34 #define FORMSW                 8
  35     { "form formfile", 0 },
  36 #define FRMTSW                 9
  37     { "format", 5 },
  38 #define NFRMTSW               10
  39     { "noformat", 7 },
  40 #define INPLSW                11
  41     { "inplace", 0 },
  42 #define NINPLSW               12
  43     { "noinplace", 0 },
  44 #define MIMESW                13
  45     { "mime", 0 },
  46 #define NMIMESW               14
  47     { "nomime", 0 },
  48 #define DGSTSW                15
  49     { "digest list", 0 },
  50 #define ISSUESW               16
  51     { "issue number", 0 },
  52 #define VOLUMSW               17
  53     { "volume number", 0 },
  54 #define WHATSW                18
  55     { "whatnowproc program", 0 },
  56 #define NWHATSW               19
  57     { "nowhatnowproc", 0 },
  58 #define BITSTUFFSW            20
  59     { "dashstuffing", 0 },              /* interface to mhl */
  60 #define NBITSTUFFSW           21
  61     { "nodashstuffing", 0 },
  62 #define VERSIONSW             22
  63     { "version", 0 },
  64 #define HELPSW                23
  65     { "help", 0 },
  66 #define FILESW                24
  67     { "file file", 4 },                 /* interface from msh */
  68
  69 #ifdef MHE
  70 #define BILDSW                25
  71     { "build", 5 },                     /* interface from mhe */
  72 #endif /* MHE */
  73
  74     { NULL, 0 }
  75 };
  76
  77 static struct swit aqrnl[] = {
  78 #define NOSW         0
  79     { "quit", 0 },
  80 #define YESW         1
  81     { "replace", 0 },
  82 #define LISTDSW      2
  83     { "list", 0 },
  84 #define REFILSW      3
  85     { "refile +folder", 0 },
  86 #define NEWSW        4
  87     { "new", 0 },
  88     { NULL, 0 }
  89 };
  90
  91 static struct swit aqrl[] = {
  92     { "quit", 0 },
  93     { "replace", 0 },
  94     { "list", 0 },
  95     { "refile +folder", 0 },
  96     { NULL, 0 }
  97 };
  98
  99 static char drft[BUFSIZ];
 100
 101 static char delim3[] =
 102     "\n------------------------------------------------------------\n\n";
 103 static char delim4[] = "\n------------------------------\n\n";
 104
 105
 106 static struct msgs *mp = NULL;          /* used a lot */
 107
 108
 109 /*
 110  * static prototypes
 111  */
 112 static void mhl_draft (int, char *, int, int, char *, char *, int);
 113 static void copy_draft (int, char *, char *, int, int, int);
 114 static void copy_mime_draft (int);
 115 static int build_form (char *, char *, int, int);
 116
 117
 118 int
 119 main (int argc, char **argv)
 120 {
 121     int msgp = 0, anot = 0, inplace = 1, mime = 0;
 122     int issue = 0, volume = 0, dashstuff = 0;
 123     int nedit = 0, nwhat = 0, i, in;
 124     int out, isdf = 0, msgnum;
 125     char *cp, *cwd, *maildir, *dfolder = NULL;
 126     char *dmsg = NULL, *digest = NULL, *ed = NULL;
 127     char *file = NULL, *filter = NULL, *folder = NULL;
 128     char *form = NULL, buf[BUFSIZ], value[10];
 129     char **argp, **arguments, *msgs[MAXARGS];
 130     struct stat st;
 131
 132 #ifdef  MHE
 133     int buildsw = 0;
 134 #endif  /* MHE */
 135
 136 #ifdef LOCALE
 137     setlocale(LC_ALL, "");
 138 #endif
 139     invo_name = r1bindex (argv[0], '/');
 140
 141     /* read user profile/context */
 142     context_read();
 143
 144     arguments = getarguments (invo_name, argc, argv, 1);
 145     argp = arguments;
 146
 147     while ((cp = *argp++)) {
 148         if (*cp == '-') {
 149             switch (smatch (++cp, switches)) {
 150                 case AMBIGSW:
 151                     ambigsw (cp, switches);
 152                     done (1);
 153                 case UNKWNSW:
 154                     adios (NULL, "-%s unknown", cp);
 155
 156                 case HELPSW:
 157                     snprintf (buf, sizeof(buf), "%s [+folder] [msgs] [switches]",
 158                         invo_name);
 159                     print_help (buf, switches, 1);
 160                     done (1);
 161                 case VERSIONSW:
 162                     print_version(invo_name);
 163                     done (1);
 164
 165                 case ANNOSW:
 166                     anot++;
 167                     continue;
 168                 case NANNOSW:
 169                     anot = 0;
 170                     continue;
 171
 172                 case EDITRSW:
 173                     if (!(ed = *argp++) || *ed == '-')
 174                         adios (NULL, "missing argument to %s", argp[-2]);
 175                     nedit = 0;
 176                     continue;
 177                 case NEDITSW:
 178                     nedit++;
 179                     continue;
 180
 181                 case WHATSW:
 182                     if (!(whatnowproc = *argp++) || *whatnowproc == '-')
 183                         adios (NULL, "missing argument to %s", argp[-2]);
 184                     nwhat = 0;
 185                     continue;
 186 #ifdef MHE
 187                 case BILDSW:
 188                     buildsw++;  /* fall... */
 189 #endif /* MHE */
 190                 case NWHATSW:
 191                     nwhat++;
 192                     continue;
 193
 194                 case FILESW:
 195                     if (file)
 196                         adios (NULL, "only one file at a time!");
 197                     if (!(cp = *argp++) || *cp == '-')
 198                         adios (NULL, "missing argument to %s", argp[-2]);
 199                     file = path (cp, TFILE);
 200                     continue;
 201                 case FILTSW:
 202                     if (!(cp = *argp++) || *cp == '-')
 203                         adios (NULL, "missing argument to %s", argp[-2]);
 204                     filter = getcpy (etcpath (cp));
 205                     mime = 0;
 206                     continue;
 207                 case FORMSW:
 208                     if (!(form = *argp++) || *form == '-')
 209                         adios (NULL, "missing argument to %s", argp[-2]);
 210                     continue;
 211
 212                 case FRMTSW:
 213                     filter = getcpy (etcpath (mhlforward));
 214                     continue;
 215                 case NFRMTSW:
 216                     filter = NULL;
 217                     continue;
 218
 219                 case INPLSW:
 220                     inplace++;
 221                     continue;
 222                 case NINPLSW:
 223                     inplace = 0;
 224                     continue;
 225
 226                 case MIMESW:
 227                     mime++;
 228                     filter = NULL;
 229                     continue;
 230                 case NMIMESW:
 231                     mime = 0;
 232                     continue;
 233
 234                 case DGSTSW:
 235                     if (!(digest = *argp++) || *digest == '-')
 236                         adios (NULL, "missing argument to %s", argp[-2]);
 237                     mime = 0;
 238                     continue;
 239                 case ISSUESW:
 240                     if (!(cp = *argp++) || *cp == '-')
 241                         adios (NULL, "missing argument to %s", argp[-2]);
 242                     if ((issue = atoi (cp)) < 1)
 243                         adios (NULL, "bad argument %s %s", argp[-2], cp);
 244                     continue;
 245                 case VOLUMSW:
 246                     if (!(cp = *argp++) || *cp == '-')
 247                         adios (NULL, "missing argument to %s", argp[-2]);
 248                     if ((volume = atoi (cp)) < 1)
 249                         adios (NULL, "bad argument %s %s", argp[-2], cp);
 250                     continue;
 251
 252                 case DFOLDSW:
 253                     if (dfolder)
 254                         adios (NULL, "only one draft folder at a time!");
 255                     if (!(cp = *argp++) || *cp == '-')
 256                         adios (NULL, "missing argument to %s", argp[-2]);
 257                     dfolder = path (*cp == '+' || *cp == '@' ? cp + 1 : cp,
 258                                     *cp != '@' ? TFOLDER : TSUBCWF);
 259                     continue;
 260                 case DMSGSW:
 261                     if (dmsg)
 262                         adios (NULL, "only one draft message at a time!");
 263                     if (!(dmsg = *argp++) || *dmsg == '-')
 264                         adios (NULL, "missing argument to %s", argp[-2]);
 265                     continue;
 266                 case NDFLDSW:
 267                     dfolder = NULL;
 268                     isdf = NOTOK;
 269                     continue;
 270
 271                 case BITSTUFFSW:
 272                     dashstuff = 1;      /* trinary logic */
 273                     continue;
 274                 case NBITSTUFFSW:
 275                     dashstuff = -1;     /* trinary logic */
 276                     continue;
 277             }
 278         }
 279         if (*cp == '+' || *cp == '@') {
 280             if (folder)
 281                 adios (NULL, "only one folder at a time!");
 282             else
 283                 folder = path (cp + 1, *cp == '+' ? TFOLDER : TSUBCWF);
 284         } else {
 285             msgs[msgp++] = cp;
 286         }
 287     }
 288
 289     cwd = getcpy (pwd ());
 290
 291     if (!context_find ("path"))
 292         free (path ("./", TFOLDER));
 293     if (file && (msgp || folder))
 294         adios (NULL, "can't mix files and folders/msgs");
 295
 296 try_it_again:
 297
 298 #ifdef MHE
 299     strncpy (drft, buildsw ? m_maildir ("draft")
 300                           : m_draft (dfolder, NULL, NOUSE, &isdf), sizeof(drft));
 301
 302     /* Check if a draft already exists */
 303     if (!buildsw && stat (drft, &st) != NOTOK) {
 304 #else
 305     strncpy (drft, m_draft (dfolder, dmsg, NOUSE, &isdf), sizeof(drft));
 306
 307     /* Check if a draft already exists */
 308     if (stat (drft, &st) != NOTOK) {
 309 #endif  /* MHE */
 310         printf ("Draft \"%s\" exists (%ld bytes).", drft, (long) st.st_size);
 311         for (i = LISTDSW; i != YESW;) {
 312             if (!(argp = getans ("\nDisposition? ", isdf ? aqrnl : aqrl)))
 313                 done (1);
 314             switch (i = smatch (*argp, isdf ? aqrnl : aqrl)) {
 315                 case NOSW:
 316                     done (0);
 317                 case NEWSW:
 318                     dmsg = NULL;
 319                     goto try_it_again;
 320                 case YESW:
 321                     break;
 322                 case LISTDSW:
 323                     showfile (++argp, drft);
 324                     break;
 325                 case REFILSW:
 326                     if (refile (++argp, drft) == 0)
 327                         i = YESW;
 328                     break;
 329                 default:
 330                     advise (NULL, "say what?");
 331                     break;
 332             }
 333         }
 334     }
 335
 336     if (file) {
 337         /*
 338          * Forwarding a file.
 339          */
 340         anot = 0;       /* don't want to annotate a file */
 341     } else {
 342         /*
 343          * Forwarding a message.
 344          */
 345         if (!msgp)
 346             msgs[msgp++] = "cur";
 347         if (!folder)
 348             folder = getfolder (1);
 349         maildir = m_maildir (folder);
 350
 351         if (chdir (maildir) == NOTOK)
 352             adios (maildir, "unable to change directory to");
 353
 354         /* read folder and create message structure */
 355         if (!(mp = folder_read (folder)))
 356             adios (NULL, "unable to read folder %s", folder);
 357
 358         /* check for empty folder */
 359         if (mp->nummsg == 0)
 360             adios (NULL, "no messages in %s", folder);
 361
 362         /* parse all the message ranges/sequences and set SELECTED */
 363         for (msgnum = 0; msgnum < msgp; msgnum++)
 364             if (!m_convert (mp, msgs[msgnum]))
 365                 done (1);
 366         seq_setprev (mp);       /* set the previous sequence */
 367     }
 368
 369     if (filter && access (filter, R_OK) == NOTOK)
 370         adios (filter, "unable to read");
 371
 372     /*
 373      * Open form (component) file.
 374      */
 375     if (digest) {
 376         if (issue == 0) {
 377             snprintf (buf, sizeof(buf), IFORMAT, digest);
 378             if (volume == 0
 379                     && (cp = context_find (buf))
 380                     && ((issue = atoi (cp)) < 0))
 381                 issue = 0;
 382             issue++;
 383         }
 384         if (volume == 0)
 385             snprintf (buf, sizeof(buf), VFORMAT, digest);
 386         if ((cp = context_find (buf)) == NULL || (volume = atoi (cp)) <= 0)
 387             volume = 1;
 388         if (!form)
 389             form = digestcomps;
 390         in = build_form (form, digest, volume, issue);
 391     } else {
 392         if (form) {
 393             if ((in = open (etcpath (form), O_RDONLY)) == NOTOK)
 394                 adios (form, "unable to open form file");
 395         } else {
 396             if ((in = open (etcpath (forwcomps), O_RDONLY)) == NOTOK)
 397                 adios (forwcomps, "unable to open default components file");
 398             form = forwcomps;
 399         }
 400     }
 401
 402     if ((out = creat (drft, m_gmprot ())) == NOTOK)
 403         adios (drft, "unable to create");
 404
 405     /*
 406      * copy the components into the draft
 407      */
 408     cpydata (in, out, form, drft);
 409     close (in);
 410
 411     if (file) {
 412         /* just copy the file into the draft */
 413         if ((in = open (file, O_RDONLY)) == NOTOK)
 414             adios (file, "unable to open");
 415         cpydata (in, out, file, drft);
 416         close (in);
 417         close (out);
 418     } else {
 419         /*
 420          * If filter file is defined, then format the
 421          * messages into the draft using mhlproc.
 422          */
 423         if (filter)
 424             mhl_draft (out, digest, volume, issue, drft, filter, dashstuff);
 425         else if (mime)
 426             copy_mime_draft (out);
 427         else
 428             copy_draft (out, digest, drft, volume, issue, dashstuff);
 429         close (out);
 430
 431         if (digest) {
 432             snprintf (buf, sizeof(buf), IFORMAT, digest);
 433             snprintf (value, sizeof(value), "%d", issue);
 434             context_replace (buf, getcpy (value));
 435             snprintf (buf, sizeof(buf), VFORMAT, digest);
 436             snprintf (value, sizeof(value), "%d", volume);
 437             context_replace (buf, getcpy (value));
 438         }
 439
 440         context_replace (pfolder, folder);      /* update current folder   */
 441         seq_setcur (mp, mp->lowsel);            /* update current message  */
 442         seq_save (mp);                          /* synchronize sequences   */
 443         context_save ();                        /* save the context file   */
 444     }
 445
 446     if (nwhat)
 447         done (0);
 448     what_now (ed, nedit, NOUSE, drft, NULL, 0, mp,
 449         anot ? "Forwarded" : NULL, inplace, cwd);
 450     return done (1);
 451 }
 452
 453
 454 /*
 455  * Filter the messages you are forwarding, into the
 456  * draft calling the mhlproc, and reading its output
 457  * from a pipe.
 458  */
 459
 460 static void
 461 mhl_draft (int out, char *digest, int volume, int issue,
 462             char *file, char *filter, int dashstuff)
 463 {
 464     pid_t child_id;
 465     int i, msgnum, pd[2];
 466     char *vec[MAXARGS];
 467     char buf1[BUFSIZ];
 468     char buf2[BUFSIZ];
 469
 470     if (pipe (pd) == NOTOK)
 471         adios ("pipe", "unable to create");
 472
 473     vec[0] = r1bindex (mhlproc, '/');
 474
 475     for (i = 0; (child_id = fork()) == NOTOK && i < 5; i++)
 476         sleep (5);
 477     switch (child_id) {
 478         case NOTOK:
 479             adios ("fork", "unable to");
 480
 481         case OK:
 482             close (pd[0]);
 483             dup2 (pd[1], 1);
 484             close (pd[1]);
 485
 486             i = 1;
 487             vec[i++] = "-forwall";
 488             vec[i++] = "-form";
 489             vec[i++] = filter;
 490
 491             if (digest) {
 492                 vec[i++] = "-digest";
 493                 vec[i++] = digest;
 494                 vec[i++] = "-issue";
 495                 snprintf (buf1, sizeof(buf1), "%d", issue);
 496                 vec[i++] = buf1;
 497                 vec[i++] = "-volume";
 498                 snprintf (buf2, sizeof(buf2), "%d", volume);
 499                 vec[i++] = buf2;
 500             }
 501
 502             /*
 503              * Are we dashstuffing (quoting) the lines that begin
 504              * with `-'.  We use the mhl default (don't add any flag)
 505              * unless the user has specified a specific flag.
 506              */
 507             if (dashstuff > 0)
 508                 vec[i++] = "-dashstuffing";
 509             else if (dashstuff < 0)
 510                 vec[i++] = "-nodashstuffing";
 511
 512             if (mp->numsel >= MAXARGS - i)
 513                 adios (NULL, "more than %d messages for %s exec",
 514                         vec[0], MAXARGS - i);
 515
 516             /*
 517              * Now add the message names to filter.  We can only
 518              * handle about 995 messages (because vec is fixed size),
 519              * but that should be plenty.
 520              */
 521             for (msgnum = mp->lowsel; msgnum <= mp->hghsel && i < sizeof(vec) - 1;
 522                         msgnum++)
 523                 if (is_selected (mp, msgnum))
 524                     vec[i++] = getcpy (m_name (msgnum));
 525             vec[i] = NULL;
 526
 527             execvp (mhlproc, vec);
 528             fprintf (stderr, "unable to exec ");
 529             perror (mhlproc);
 530             _exit (-1);
 531
 532         default:
 533             close (pd[1]);
 534             cpydata (pd[0], out, vec[0], file);
 535             close (pd[0]);
 536             pidXwait(child_id, mhlproc);
 537             break;
 538     }
 539 }
 540
 541
 542 /*
 543  * Copy the messages into the draft.  The messages are
 544  * not filtered through the mhlproc.  Do dashstuffing if
 545  * necessary.
 546  */
 547
 548 static void
 549 copy_draft (int out, char *digest, char *file, int volume, int issue, int dashstuff)
 550 {
 551     int fd,i, msgcnt, msgnum;
 552     int len, buflen;
 553     register char *bp, *msgnam;
 554     char buffer[BUFSIZ];
 555
 556     msgcnt = 1;
 557     for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++) {
 558         if (is_selected (mp, msgnum)) {
 559             if (digest) {
 560                 strncpy (buffer, msgnum == mp->lowsel ? delim3 : delim4,
 561                         sizeof(buffer));
 562             } else {
 563                 /* Get buffer ready to go */
 564                 bp = buffer;
 565                 buflen = sizeof(buffer);
 566
 567                 strncpy (bp, "\n-------", buflen);
 568                 len = strlen (bp);
 569                 bp += len;
 570                 buflen -= len;
 571
 572                 if (msgnum == mp->lowsel) {
 573                     snprintf (bp, buflen, " Forwarded Message%s",
 574                         mp->numsel > 1 ? "s" : "");
 575                 } else {
 576                     snprintf (bp, buflen, " Message %d", msgcnt);
 577                 }
 578                 len = strlen (bp);
 579                 bp += len;
 580                 buflen -= len;
 581
 582                 strncpy (bp, "\n\n", buflen);
 583             }
 584             write (out, buffer, strlen (buffer));
 585
 586             if ((fd = open (msgnam = m_name (msgnum), O_RDONLY)) == NOTOK) {
 587                 admonish (msgnam, "unable to read message");
 588                 continue;
 589             }
 590
 591             /*
 592              * Copy the message.  Add RFC934 quoting (dashstuffing)
 593              * unless given the -nodashstuffing flag.
 594              */
 595             if (dashstuff >= 0)
 596                 cpydgst (fd, out, msgnam, file);
 597             else
 598                 cpydata (fd, out, msgnam, file);
 599
 600             close (fd);
 601             msgcnt++;
 602         }
 603     }
 604
 605     if (digest) {
 606         strncpy (buffer, delim4, sizeof(buffer));
 607     } else {
 608         snprintf (buffer, sizeof(buffer), "\n------- End of Forwarded Message%s\n\n",
 609                 mp->numsel > 1 ? "s" : "");
 610     }
 611     write (out, buffer, strlen (buffer));
 612
 613     if (digest) {
 614         snprintf (buffer, sizeof(buffer), "End of %s Digest [Volume %d Issue %d]\n",
 615                 digest, volume, issue);
 616         i = strlen (buffer);
 617         for (bp = buffer + i; i > 1; i--)
 618             *bp++ = '*';
 619         *bp++ = '\n';
 620         *bp = 0;
 621         write (out, buffer, strlen (buffer));
 622     }
 623 }
 624
 625
 626 /*
 627  * Create a mhn composition file for forwarding message.
 628  */
 629
 630 static void
 631 copy_mime_draft (int out)
 632 {
 633     int msgnum;
 634     char buffer[BUFSIZ];
 635
 636     snprintf (buffer, sizeof(buffer), "#forw [forwarded message%s] +%s",
 637         mp->numsel == 1 ? "" : "s", mp->foldpath);
 638     write (out, buffer, strlen (buffer));
 639     for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++)
 640         if (is_selected (mp, msgnum)) {
 641             snprintf (buffer, sizeof(buffer), " %s", m_name (msgnum));
 642             write (out, buffer, strlen (buffer));
 643         }
 644     write (out, "\n", 1);
 645 }
 646
 647
 648 static int
 649 build_form (char *form, char *digest, int volume, int issue)
 650 {
 651     int in;
 652     int fmtsize;
 653     register char *nfs;
 654     char *line, tmpfil[BUFSIZ];
 655     register FILE *tmp;
 656     register struct comp *cptr;
 657     struct format *fmt;
 658     int dat[5];
 659
 660     /* Get new format string */
 661     nfs = new_fs (form, NULL, NULL);
 662     fmtsize = strlen (nfs) + 256;
 663
 664     /* Compile format string */
 665     fmt_compile (nfs, &fmt);
 666
 667     FINDCOMP (cptr, "digest");
 668     if (cptr)
 669         cptr->c_text = digest;
 670     FINDCOMP (cptr, "date");
 671     if (cptr)
 672         cptr->c_text = getcpy(dtimenow (0));
 673
 674     dat[0] = issue;
 675     dat[1] = volume;
 676     dat[2] = 0;
 677     dat[3] = fmtsize;
 678     dat[4] = 0;
 679
 680     strncpy (tmpfil, m_tmpfil (invo_name), sizeof(tmpfil));
 681     if ((tmp = fopen (tmpfil, "w+")) == NULL)
 682         adios (tmpfil, "unable to create");
 683     unlink (tmpfil);
 684     if ((in = dup (fileno (tmp))) == NOTOK)
 685         adios ("dup", "unable to");
 686
 687     if ((line = malloc ((unsigned) fmtsize)) == NULL)
 688         adios (NULL, "unable to allocate format line storage");
 689     fmt_scan (fmt, line, fmtsize, dat);
 690     fputs (line, tmp);
 691     free (line);
 692     if (fclose (tmp))
 693         adios (tmpfil, "error writing");
 694
 695     lseek (in, (off_t) 0, SEEK_SET);
 696     return in;
 697 }