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

   1 /* mhn.c -- display, list, or store the contents of MIME 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/m_name.h"
  10 #include "sbr/m_gmprot.h"
  11 #include "sbr/getarguments.h"
  12 #include "sbr/seq_setprev.h"
  13 #include "sbr/seq_setcur.h"
  14 #include "sbr/seq_save.h"
  15 #include "sbr/smatch.h"
  16 #include "sbr/m_convert.h"
  17 #include "sbr/getfolder.h"
  18 #include "sbr/folder_read.h"
  19 #include "sbr/context_save.h"
  20 #include "sbr/context_replace.h"
  21 #include "sbr/context_find.h"
  22 #include "sbr/readconfig.h"
  23 #include "sbr/ambigsw.h"
  24 #include "sbr/path.h"
  25 #include "sbr/print_version.h"
  26 #include "sbr/print_help.h"
  27 #include "sbr/error.h"
  28 #include <fcntl.h>
  29 #include "h/signals.h"
  30 #include "h/mts.h"
  31 #include "h/tws.h"
  32 #include "h/fmt_scan.h"
  33 #include "h/mime.h"
  34 #include "h/mhparse.h"
  35 #include "h/done.h"
  36 #include "h/utils.h"
  37 #include "mhmisc.h"
  38 #include "sbr/m_maildir.h"
  39 #include "mhfree.h"
  40 #include "mhshowsbr.h"
  41
  42 #define MHN_SWITCHES \
  43     X("auto", 0, AUTOSW) \
  44     X("noauto", 0, NAUTOSW) \
  45     X("check", -5, CHECKSW) \
  46     X("nocheck", -7, NCHECKSW) \
  47     X("headers", 0, HEADSW) \
  48     X("noheaders", 0, NHEADSW) \
  49     X("list", 0, LISTSW) \
  50     X("nolist", 0, NLISTSW) \
  51     X("realsize", 0, SIZESW) \
  52     X("norealsize", 0, NSIZESW) \
  53     X("show", 0, SHOWSW) \
  54     X("noshow", 0, NSHOWSW) \
  55     X("store", 0, STORESW) \
  56     X("nostore", 0, NSTORESW) \
  57     X("verbose", 0, VERBSW) \
  58     X("noverbose", 0, NVERBSW) \
  59     X("file file", 0, FILESW) \
  60     X("form formfile", 0, FORMSW) \
  61     X("part number", 0, PARTSW) \
  62     X("type content", 0, TYPESW) \
  63     X("version", 0, VERSIONSW) \
  64     X("help", 0, HELPSW) \
  65     /*                                  \
  66      * for debugging                    \
  67      */                                 \
  68     X("debug", -5, DEBUGSW) \
  69     /*                                  \
  70      * switches for moreproc/mhlproc    \
  71      */                                 \
  72     X("moreproc program", -4, PROGSW) \
  73     X("nomoreproc", -3, NPROGSW) \
  74     X("length lines", -4, LENSW) \
  75     X("width columns", -4, WIDTHSW) \
  76     /*                                  \
  77      * switches for mhbuild             \
  78      */                                 \
  79     X("build", -5, BUILDSW) \
  80     X("nobuild", -7, NBUILDSW) \
  81     X("rfc934mode", 0, RFC934SW) \
  82     X("norfc934mode", 0, NRFC934SW) \
  83
  84 #define X(sw, minchars, id) id,
  85 DEFINE_SWITCH_ENUM(MHN);
  86 #undef X
  87
  88 #define X(sw, minchars, id) { sw, minchars, id },
  89 DEFINE_SWITCH_ARRAY(MHN, switches);
  90 #undef X
  91
  92
  93 int debugsw = 0;
  94 int verbosw = 0;
  95
  96 /*
  97  * variables for mhbuild (mhn -build)
  98  */
  99 static bool buildsw;
 100 static int rfc934sw = 0;
 101
 102 /*
 103  * what action to take?
 104  */
 105 static bool listsw;
 106 static bool showsw;
 107 static bool storesw;
 108
 109 #define quitser pipeser
 110
 111 /*
 112  * static prototypes
 113  */
 114 static void pipeser (int);
 115
 116
 117 int
 118 main (int argc, char **argv)
 119 {
 120     bool sizesw = true;
 121     bool headsw = true;
 122     bool autosw = false;
 123     int msgnum;
 124     char *cp, *file = NULL, *folder = NULL;
 125     char *maildir, buf[100], **argp;
 126     char **arguments;
 127     char *cwd;
 128     struct msgs_array msgs = { 0, 0, NULL };
 129     struct msgs *mp = NULL;
 130     CT ct, *ctp;
 131     FILE *fp;
 132     mhstoreinfo_t info;
 133
 134     if (nmh_init(argv[0], true, true)) { return 1; }
 135
 136     set_done(freects_done);
 137
 138     arguments = getarguments (invo_name, argc, argv, 1);
 139     argp = arguments;
 140
 141     /*
 142      * Parse arguments
 143      */
 144     while ((cp = *argp++)) {
 145         if (*cp == '-') {
 146             switch (smatch (++cp, switches)) {
 147             case AMBIGSW:
 148                 ambigsw (cp, switches);
 149                 done (1);
 150             case UNKWNSW:
 151                 die("-%s unknown", cp);
 152
 153             case HELPSW:
 154                 snprintf (buf, sizeof(buf), "%s [+folder] [msgs] [switches]",
 155                         invo_name);
 156                 print_help (buf, switches, 1);
 157                 done (0);
 158             case VERSIONSW:
 159                 print_version(invo_name);
 160                 done (0);
 161
 162             case AUTOSW:
 163                 autosw = true;
 164                 continue;
 165             case NAUTOSW:
 166                 autosw = false;
 167                 continue;
 168
 169             case CHECKSW:
 170             case NCHECKSW:
 171                 /* Currently a NOP */
 172                 continue;
 173
 174             case HEADSW:
 175                 headsw = true;
 176                 continue;
 177             case NHEADSW:
 178                 headsw = false;
 179                 continue;
 180
 181             case LISTSW:
 182                 listsw = true;
 183                 continue;
 184             case NLISTSW:
 185                 listsw = false;
 186                 continue;
 187
 188             case SHOWSW:
 189                 showsw = true;
 190                 continue;
 191             case NSHOWSW:
 192                 showsw = false;
 193                 continue;
 194
 195             case SIZESW:
 196                 sizesw = true;
 197                 continue;
 198             case NSIZESW:
 199                 sizesw = false;
 200                 continue;
 201
 202             case STORESW:
 203                 storesw = true;
 204                 continue;
 205             case NSTORESW:
 206                 storesw = false;
 207                 continue;
 208
 209             case PARTSW:
 210                 if (!(cp = *argp++) || *cp == '-')
 211                     die("missing argument to %s", argp[-2]);
 212                 if (npart >= NPARTS)
 213                     die("too many parts (starting with %s), %d max",
 214                            cp, NPARTS);
 215                 parts[npart++] = cp;
 216                 continue;
 217
 218             case TYPESW:
 219                 if (!(cp = *argp++) || *cp == '-')
 220                     die("missing argument to %s", argp[-2]);
 221                 if (ntype >= NTYPES)
 222                     die("too many types (starting with %s), %d max",
 223                            cp, NTYPES);
 224                 types[ntype++] = cp;
 225                 continue;
 226
 227             case FILESW:
 228                 if (!(cp = *argp++) || (*cp == '-' && cp[1]))
 229                     die("missing argument to %s", argp[-2]);
 230                 file = *cp == '-' ? cp : path (cp, TFILE);
 231                 continue;
 232
 233             case FORMSW:
 234                 if (!(cp = *argp++) || *cp == '-')
 235                     die("missing argument to %s", argp[-2]);
 236                 free(formsw);
 237                 formsw = mh_xstrdup(etcpath(cp));
 238                 continue;
 239
 240             /*
 241              * Switches for moreproc/mhlproc
 242              */
 243             case PROGSW:
 244                 if (!(progsw = *argp++) || *progsw == '-')
 245                     die("missing argument to %s", argp[-2]);
 246                 continue;
 247             case NPROGSW:
 248                 nomore++;
 249                 continue;
 250
 251             case LENSW:
 252             case WIDTHSW:
 253                 if (!(cp = *argp++) || *cp == '-')
 254                     die("missing argument to %s", argp[-2]);
 255                 continue;
 256
 257             /*
 258              * Switches for mhbuild
 259              */
 260             case BUILDSW:
 261                 buildsw = true;
 262                 continue;
 263             case NBUILDSW:
 264                 buildsw = false;
 265                 continue;
 266             case RFC934SW:
 267                 rfc934sw = 1;
 268                 continue;
 269             case NRFC934SW:
 270                 rfc934sw = -1;
 271                 continue;
 272
 273             case VERBSW:
 274                 verbosw = 1;
 275                 continue;
 276             case NVERBSW:
 277                 verbosw = 0;
 278                 continue;
 279             case DEBUGSW:
 280                 debugsw = 1;
 281                 continue;
 282             }
 283         }
 284         if (*cp == '+' || *cp == '@') {
 285             if (folder)
 286                 die("only one folder at a time!");
 287             folder = pluspath (cp);
 288         } else
 289                 app_msgarg(&msgs, cp);
 290     }
 291
 292     /* null terminate the list of acceptable parts/types */
 293     parts[npart] = NULL;
 294     types[ntype] = NULL;
 295
 296     /*
 297      * Check if we've specified an additional profile
 298      */
 299     if ((cp = getenv ("MHN"))) {
 300         if ((fp = fopen (cp, "r"))) {
 301             readconfig(NULL, fp, cp, 0);
 302             fclose (fp);
 303         } else {
 304             admonish ("", "unable to read $MHN profile (%s)", cp);
 305         }
 306     }
 307
 308     /*
 309      * Read the standard profile setup
 310      */
 311     if ((fp = fopen (cp = etcpath ("mhn.defaults"), "r"))) {
 312         readconfig(NULL, fp, cp, 0);
 313         fclose (fp);
 314     }
 315
 316     /*
 317      * Cache the current directory before we do any chdirs()'s.
 318      */
 319     cwd = mh_xstrdup(pwd());
 320
 321     if (!context_find ("path"))
 322         free (path ("./", TFOLDER));
 323
 324     /*
 325      * Process a mhn composition file (mhn -build)
 326      */
 327     if (buildsw) {
 328         char *vec[MAXARGS];
 329         int vecp;
 330
 331         if (showsw || storesw)
 332             die("cannot use -build with -show, -store");
 333         if (msgs.size < 1)
 334             die("need to specify a %s composition file", invo_name);
 335         if (msgs.size > 1)
 336             die("only one %s composition file at a time", invo_name);
 337
 338         vecp = 0;
 339         vec[vecp++] = "mhbuild";
 340
 341         if (rfc934sw == 1)
 342             vec[vecp++] = "-rfc934mode";
 343         else if (rfc934sw == -1)
 344             vec[vecp++] = "-norfc934mode";
 345
 346         vec[vecp++] = msgs.msgs[0];
 347         vec[vecp] = NULL;
 348
 349         execvp ("mhbuild", vec);
 350         fprintf (stderr, "unable to exec ");
 351         _exit(1);
 352     }
 353
 354     /*
 355      * Process a mhn composition file (old MH style)
 356      */
 357     if (msgs.size == 1 && !folder && !npart
 358         && !showsw && !storesw && !ntype && !file
 359         && (cp = getenv ("mhdraft"))
 360         && strcmp (cp, msgs.msgs[0]) == 0) {
 361
 362         char *vec[MAXARGS];
 363         int vecp;
 364
 365         vecp = 0;
 366         vec[vecp++] = "mhbuild";
 367
 368         if (rfc934sw == 1)
 369             vec[vecp++] = "-rfc934mode";
 370         else if (rfc934sw == -1)
 371             vec[vecp++] = "-norfc934mode";
 372
 373         vec[vecp++] = cp;
 374         vec[vecp] = NULL;
 375
 376         execvp ("mhbuild", vec);
 377         fprintf (stderr, "unable to exec ");
 378         _exit(1);
 379     }
 380
 381     if (file && msgs.size)
 382         die("cannot specify msg and file at same time!");
 383
 384     /*
 385      * check if message is coming from file
 386      */
 387     if (file) {
 388         cts = mh_xcalloc(2, sizeof *cts);
 389         ctp = cts;
 390
 391         if ((ct = parse_mime (file)))
 392             *ctp++ = ct;
 393     } else {
 394         /*
 395          * message(s) are coming from a folder
 396          */
 397         if (!msgs.size)
 398             app_msgarg(&msgs, "cur");
 399         if (!folder)
 400             folder = getfolder (1);
 401         maildir = m_maildir (folder);
 402
 403         if (chdir (maildir) == NOTOK)
 404             adios (maildir, "unable to change directory to");
 405
 406         /* read folder and create message structure */
 407         if (!(mp = folder_read (folder, 1)))
 408             die("unable to read folder %s", folder);
 409
 410         /* check for empty folder */
 411         if (mp->nummsg == 0)
 412             die("no messages in %s", folder);
 413
 414         /* parse all the message ranges/sequences and set SELECTED */
 415         for (msgnum = 0; msgnum < msgs.size; msgnum++)
 416             if (!m_convert (mp, msgs.msgs[msgnum]))
 417                 done (1);
 418         seq_setprev (mp);       /* set the previous-sequence */
 419
 420         cts = mh_xcalloc(mp->numsel + 1, sizeof *cts);
 421         ctp = cts;
 422
 423         for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++) {
 424             if (is_selected(mp, msgnum)) {
 425                 char *msgnam;
 426
 427                 msgnam = m_name (msgnum);
 428                 if ((ct = parse_mime (msgnam)))
 429                     *ctp++ = ct;
 430             }
 431         }
 432     }
 433
 434     if (!*cts)
 435         done (1);
 436
 437     /*
 438      * You can't give more than one of these flags
 439      * at a time.
 440      */
 441     if (showsw + listsw + storesw > 1)
 442         die("can only use one of -show, -list, -store at same time");
 443
 444     /* If no action is specified, assume -show */
 445     if (!listsw && !showsw && !storesw)
 446         showsw = true;
 447
 448     userrs = true;
 449     SIGNAL (SIGQUIT, quitser);
 450     SIGNAL (SIGPIPE, pipeser);
 451
 452     /*
 453      * Get the associated umask for the relevant contents.
 454      */
 455     for (ctp = cts; *ctp; ctp++) {
 456         struct stat st;
 457
 458         ct = *ctp;
 459         if (type_ok (ct, 1) && !ct->c_umask) {
 460             if (stat (ct->c_file, &st) != NOTOK)
 461                 ct->c_umask = ~(st.st_mode & 0777);
 462             else
 463                 ct->c_umask = ~m_gmprot();
 464         }
 465     }
 466
 467     /*
 468      * List the message content
 469      */
 470     if (listsw)
 471         list_all_messages (cts, headsw, sizesw, verbosw, debugsw, 0);
 472
 473     /*
 474      * Store the message content
 475      */
 476     if (storesw) {
 477         info = mhstoreinfo_create (cts, cwd, "always", autosw, verbosw);
 478         store_all_messages (info);
 479         mhstoreinfo_free (info);
 480     }
 481
 482     /* If reading from a folder, do some updating */
 483     if (mp) {
 484         context_replace (pfolder, folder);/* update current folder  */
 485         seq_setcur (mp, mp->hghsel);      /* update current message */
 486         seq_save (mp);                    /* synchronize sequences  */
 487         context_save ();                  /* save the context file  */
 488     }
 489
 490     /*
 491      * Show the message content
 492      */
 493     if (showsw)
 494         show_all_messages (cts, 0, 0, 0);
 495
 496     /* Now free all the structures for the content */
 497     for (ctp = cts; *ctp; ctp++)
 498         free_content (*ctp);
 499
 500     free (cts);
 501     cts = NULL;
 502
 503     done (0);
 504     return 1;
 505 }
 506
 507
 508 static void
 509 pipeser (int i)
 510 {
 511     if (i == SIGQUIT) {
 512         fflush (stdout);
 513         fprintf (stderr, "\n");
 514         fflush (stderr);
 515     }
 516
 517     done (1);
 518     /* NOTREACHED */
 519 }