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