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