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