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