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