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