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

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