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

   1
   2 /*
   3  * mhstore.c -- store the contents of MIME messages
   4  *
   5  * $Id$
   6  *
   7  * This code is Copyright (c) 2002, by the authors of nmh.  See the
   8  * COPYRIGHT file in the root directory of the nmh distribution for
   9  * complete copyright information.
  10  */
  11
  12 #include <h/mh.h>
  13 #include <fcntl.h>
  14 #include <h/signals.h>
  15 #include <h/md5.h>
  16 #include <errno.h>
  17 #include <signal.h>
  18 #include <h/mts.h>
  19 #include <h/tws.h>
  20 #include <h/mime.h>
  21 #include <h/mhparse.h>
  22 #include <h/mhcachesbr.h>
  23 #include <h/utils.h>
  24
  25 #ifdef HAVE_SYS_WAIT_H
  26 # include <sys/wait.h>
  27 #endif
  28
  29 static struct swit switches[] = {
  30 #define AUTOSW                  0
  31     { "auto", 0 },
  32 #define NAUTOSW                 1
  33     { "noauto", 0 },
  34 #define CHECKSW                 2
  35     { "check", 0 },
  36 #define NCHECKSW                3
  37     { "nocheck", 0 },
  38 #define VERBSW                  4
  39     { "verbose", 0 },
  40 #define NVERBSW                 5
  41     { "noverbose", 0 },
  42 #define FILESW                  6       /* interface from show */
  43     { "file file", 0 },
  44 #define PARTSW                  7
  45     { "part number", 0 },
  46 #define TYPESW                  8
  47     { "type content", 0 },
  48 #define RCACHESW                9
  49     { "rcache policy", 0 },
  50 #define WCACHESW               10
  51     { "wcache policy", 0 },
  52 #define VERSIONSW              11
  53     { "version", 0 },
  54 #define HELPSW                 12
  55     { "help", 0 },
  56
  57 /*
  58  * switches for debugging
  59  */
  60 #define DEBUGSW                13
  61     { "debug", -5 },
  62     { NULL, 0 }
  63 };
  64
  65
  66 /* mhparse.c */
  67 extern int checksw;
  68 extern char *tmp;       /* directory to place temp files */
  69
  70 /* mhcachesbr.c */
  71 extern int rcachesw;
  72 extern int wcachesw;
  73 extern char *cache_public;
  74 extern char *cache_private;
  75
  76 /* mhstoresbr.c */
  77 extern int autosw;
  78 extern char *cwd;       /* cache current working directory */
  79
  80 /* mhmisc.c */
  81 extern int npart;
  82 extern int ntype;
  83 extern char *parts[NPARTS + 1];
  84 extern char *types[NTYPES + 1];
  85 extern int userrs;
  86
  87 int debugsw = 0;
  88 int verbosw = 0;
  89
  90 /* The list of top-level contents to display */
  91 CT *cts = NULL;
  92
  93 #define quitser pipeser
  94
  95 /* mhparse.c */
  96 CT parse_mime (char *);
  97
  98 /* mhmisc.c */
  99 int part_ok (CT, int);
 100 int type_ok (CT, int);
 101 void set_endian (void);
 102 void flush_errors (void);
 103
 104 /* mhstoresbr.c */
 105 void store_all_messages (CT *);
 106
 107 /* mhfree.c */
 108 void free_content (CT);
 109
 110 /*
 111  * static prototypes
 112  */
 113 static RETSIGTYPE pipeser (int);
 114
 115
 116 int
 117 main (int argc, char **argv)
 118 {
 119     int msgnum, *icachesw;
 120     char *cp, *file = NULL, *folder = NULL;
 121     char *maildir, buf[100], **argp;
 122     char **arguments;
 123     struct msgs_array msgs = { 0, 0, NULL };
 124     struct msgs *mp = NULL;
 125     CT ct, *ctp;
 126     FILE *fp;
 127
 128 #ifdef LOCALE
 129     setlocale(LC_ALL, "");
 130 #endif
 131     invo_name = r1bindex (argv[0], '/');
 132
 133     /* read user profile/context */
 134     context_read();
 135
 136     arguments = getarguments (invo_name, argc, argv, 1);
 137     argp = arguments;
 138
 139     /*
 140      * Parse arguments
 141      */
 142     while ((cp = *argp++)) {
 143         if (*cp == '-') {
 144             switch (smatch (++cp, switches)) {
 145             case AMBIGSW:
 146                 ambigsw (cp, switches);
 147                 done (1);
 148             case UNKWNSW:
 149                 adios (NULL, "-%s unknown", cp);
 150
 151             case HELPSW:
 152                 snprintf (buf, sizeof(buf), "%s [+folder] [msgs] [switches]",
 153                         invo_name);
 154                 print_help (buf, switches, 1);
 155                 done (1);
 156             case VERSIONSW:
 157                 print_version(invo_name);
 158                 done (1);
 159
 160             case AUTOSW:
 161                 autosw++;
 162                 continue;
 163             case NAUTOSW:
 164                 autosw = 0;
 165                 continue;
 166
 167             case RCACHESW:
 168                 icachesw = &rcachesw;
 169                 goto do_cache;
 170             case WCACHESW:
 171                 icachesw = &wcachesw;
 172 do_cache:
 173                 if (!(cp = *argp++) || *cp == '-')
 174                     adios (NULL, "missing argument to %s", argp[-2]);
 175                 switch (*icachesw = smatch (cp, caches)) {
 176                 case AMBIGSW:
 177                     ambigsw (cp, caches);
 178                     done (1);
 179                 case UNKWNSW:
 180                     adios (NULL, "%s unknown", cp);
 181                 default:
 182                     break;
 183                 }
 184                 continue;
 185
 186             case CHECKSW:
 187                 checksw++;
 188                 continue;
 189             case NCHECKSW:
 190                 checksw = 0;
 191                 continue;
 192
 193             case PARTSW:
 194                 if (!(cp = *argp++) || *cp == '-')
 195                     adios (NULL, "missing argument to %s", argp[-2]);
 196                 if (npart >= NPARTS)
 197                     adios (NULL, "too many parts (starting with %s), %d max",
 198                            cp, NPARTS);
 199                 parts[npart++] = cp;
 200                 continue;
 201
 202             case TYPESW:
 203                 if (!(cp = *argp++) || *cp == '-')
 204                     adios (NULL, "missing argument to %s", argp[-2]);
 205                 if (ntype >= NTYPES)
 206                     adios (NULL, "too many types (starting with %s), %d max",
 207                            cp, NTYPES);
 208                 types[ntype++] = cp;
 209                 continue;
 210
 211             case FILESW:
 212                 if (!(cp = *argp++) || (*cp == '-' && cp[1]))
 213                     adios (NULL, "missing argument to %s", argp[-2]);
 214                 file = *cp == '-' ? cp : path (cp, TFILE);
 215                 continue;
 216
 217             case VERBSW:
 218                 verbosw = 1;
 219                 continue;
 220             case NVERBSW:
 221                 verbosw = 0;
 222                 continue;
 223             case DEBUGSW:
 224                 debugsw = 1;
 225                 continue;
 226             }
 227         }
 228         if (*cp == '+' || *cp == '@') {
 229             if (folder)
 230                 adios (NULL, "only one folder at a time!");
 231             else
 232                 folder = pluspath (cp);
 233         } else
 234                 app_msgarg(&msgs, cp);
 235     }
 236
 237     /* null terminate the list of acceptable parts/types */
 238     parts[npart] = NULL;
 239     types[ntype] = NULL;
 240
 241     set_endian ();
 242
 243     /*
 244      * Check if we've specified an additional profile
 245      */
 246     if ((cp = getenv ("MHSTORE"))) {
 247         if ((fp = fopen (cp, "r"))) {
 248             readconfig ((struct node **) 0, fp, cp, 0);
 249             fclose (fp);
 250         } else {
 251             admonish ("", "unable to read $MHSTORE profile (%s)", cp);
 252         }
 253     }
 254
 255     /*
 256      * Read the standard profile setup
 257      */
 258     if ((fp = fopen (cp = etcpath ("mhn.defaults"), "r"))) {
 259         readconfig ((struct node **) 0, fp, cp, 0);
 260         fclose (fp);
 261     }
 262
 263     /* Check for public cache location */
 264     if ((cache_public = context_find (nmhcache)) && *cache_public != '/')
 265         cache_public = NULL;
 266
 267     /* Check for private cache location */
 268     if (!(cache_private = context_find (nmhprivcache)))
 269         cache_private = ".cache";
 270     cache_private = getcpy (m_maildir (cache_private));
 271
 272     /*
 273      * Cache the current directory before we do any chdirs()'s.
 274      */
 275     cwd = getcpy (pwd());
 276
 277     /*
 278      * Check for storage directory.  If specified,
 279      * then store temporary files there.  Else we
 280      * store them in standard nmh directory.
 281      */
 282     if ((cp = context_find (nmhstorage)) && *cp)
 283         tmp = concat (cp, "/", invo_name, NULL);
 284     else
 285         tmp = add (m_maildir (invo_name), NULL);
 286
 287     if (!context_find ("path"))
 288         free (path ("./", TFOLDER));
 289
 290     if (file && msgs.size)
 291         adios (NULL, "cannot specify msg and file at same time!");
 292
 293     /*
 294      * check if message is coming from file
 295      */
 296     if (file) {
 297         if (!(cts = (CT *) calloc ((size_t) 2, sizeof(*cts))))
 298             adios (NULL, "out of memory");
 299         ctp = cts;
 300
 301         if ((ct = parse_mime (file)));
 302             *ctp++ = ct;
 303     } else {
 304         /*
 305          * message(s) are coming from a folder
 306          */
 307         if (!msgs.size)
 308             app_msgarg(&msgs, "cur");
 309         if (!folder)
 310             folder = getfolder (1);
 311         maildir = m_maildir (folder);
 312
 313         if (chdir (maildir) == NOTOK)
 314             adios (maildir, "unable to change directory to");
 315
 316         /* read folder and create message structure */
 317         if (!(mp = folder_read (folder)))
 318             adios (NULL, "unable to read folder %s", folder);
 319
 320         /* check for empty folder */
 321         if (mp->nummsg == 0)
 322             adios (NULL, "no messages in %s", folder);
 323
 324         /* parse all the message ranges/sequences and set SELECTED */
 325         for (msgnum = 0; msgnum < msgs.size; msgnum++)
 326             if (!m_convert (mp, msgs.msgs[msgnum]))
 327                 done (1);
 328         seq_setprev (mp);       /* set the previous-sequence */
 329
 330         if (!(cts = (CT *) calloc ((size_t) (mp->numsel + 1), sizeof(*cts))))
 331             adios (NULL, "out of memory");
 332         ctp = cts;
 333
 334         for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++) {
 335             if (is_selected(mp, msgnum)) {
 336                 char *msgnam;
 337
 338                 msgnam = m_name (msgnum);
 339                 if ((ct = parse_mime (msgnam)))
 340                     *ctp++ = ct;
 341             }
 342         }
 343     }
 344
 345     if (!*cts)
 346         done (1);
 347
 348     userrs = 1;
 349     SIGNAL (SIGQUIT, quitser);
 350     SIGNAL (SIGPIPE, pipeser);
 351
 352     /*
 353      * Get the associated umask for the relevant contents.
 354      */
 355     for (ctp = cts; *ctp; ctp++) {
 356         struct stat st;
 357
 358         ct = *ctp;
 359         if (type_ok (ct, 1) && !ct->c_umask) {
 360             if (stat (ct->c_file, &st) != NOTOK)
 361                 ct->c_umask = ~(st.st_mode & 0777);
 362             else
 363                 ct->c_umask = ~m_gmprot();
 364         }
 365     }
 366
 367     /*
 368      * Store the message content
 369      */
 370     store_all_messages (cts);
 371
 372     /* Now free all the structures for the content */
 373     for (ctp = cts; *ctp; ctp++)
 374         free_content (*ctp);
 375
 376     free ((char *) cts);
 377     cts = NULL;
 378
 379     /* If reading from a folder, do some updating */
 380     if (mp) {
 381         context_replace (pfolder, folder);/* update current folder  */
 382         seq_setcur (mp, mp->hghsel);      /* update current message */
 383         seq_save (mp);                    /* synchronize sequences  */
 384         context_save ();                  /* save the context file  */
 385     }
 386
 387     return done (0);
 388 }
 389
 390
 391 static RETSIGTYPE
 392 pipeser (int i)
 393 {
 394     if (i == SIGQUIT) {
 395         unlink ("core");
 396         fflush (stdout);
 397         fprintf (stderr, "\n");
 398         fflush (stderr);
 399     }
 400
 401     done (1);
 402     /* NOTREACHED */
 403 }
 404
 405
 406 int
 407 done (int status)
 408 {
 409     CT *ctp;
 410
 411     if ((ctp = cts))
 412         for (; *ctp; ctp++)
 413             free_content (*ctp);
 414
 415     exit (status);
 416     return 1;  /* dead code to satisfy the compiler */
 417 }