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