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("prefer content", 0, PREFERSW) \
  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 /* mhcachesbr.c */
  50 extern int rcachesw;
  51 extern int wcachesw;
  52 extern char *cache_public;
  53 extern char *cache_private;
  54
  55 /* mhmisc.c */
  56 extern int npart;
  57 extern int ntype;
  58 extern char *parts[NPARTS + 1];
  59 extern char *types[NTYPES + 1];
  60 extern int userrs;
  61
  62 /* mhparse.c */
  63 extern char *preferred_types[];
  64 extern  char *preferred_subtypes[];
  65 extern int npreferred;
  66
  67 #define quitser pipeser
  68
  69 /* mhparse.c */
  70 int debugsw = 0;
  71 CT parse_mime (char *);
  72
  73 /* mhmisc.c */
  74 int part_ok (CT);
  75 int type_ok (CT, int);
  76 void flush_errors (void);
  77
  78 /* mhfree.c */
  79 extern CT *cts;
  80 void freects_done (int) NORETURN;
  81
  82 /*
  83  * static prototypes
  84  */
  85 static void pipeser (int);
  86
  87
  88 int
  89 main (int argc, char **argv)
  90 {
  91     /* verbosw defaults to 1 for backward compatibility. */
  92     int msgnum, *icachesw, autosw = 0, verbosw = 1;
  93     const char *clobbersw = "always";
  94     char *cp, *file = NULL, *outfile = NULL, *folder = NULL;
  95     char *maildir, buf[100], **argp;
  96     char **arguments;
  97     char *cwd;
  98     struct msgs_array msgs = { 0, 0, NULL };
  99     struct msgs *mp = NULL;
 100     CT ct, *ctp;
 101     FILE *fp;
 102     int files_not_clobbered;
 103     mhstoreinfo_t info;
 104
 105     if (nmh_init(argv[0], 1)) { return 1; }
 106
 107     done=freects_done;
 108
 109     arguments = getarguments (invo_name, argc, argv, 1);
 110     argp = arguments;
 111
 112     /*
 113      * Parse arguments
 114      */
 115     while ((cp = *argp++)) {
 116         if (*cp == '-') {
 117             switch (smatch (++cp, switches)) {
 118             case AMBIGSW:
 119                 ambigsw (cp, switches);
 120                 done (1);
 121             case UNKWNSW:
 122                 adios (NULL, "-%s unknown", cp);
 123
 124             case HELPSW:
 125                 snprintf (buf, sizeof(buf), "%s [+folder] [msgs] [switches]",
 126                         invo_name);
 127                 print_help (buf, switches, 1);
 128                 done (0);
 129             case VERSIONSW:
 130                 print_version(invo_name);
 131                 done (0);
 132
 133             case AUTOSW:
 134                 autosw++;
 135                 continue;
 136             case NAUTOSW:
 137                 autosw = 0;
 138                 continue;
 139
 140             case RCACHESW:
 141                 icachesw = &rcachesw;
 142                 goto do_cache;
 143             case WCACHESW:
 144                 icachesw = &wcachesw;
 145 do_cache:
 146                 if (!(cp = *argp++) || *cp == '-')
 147                     adios (NULL, "missing argument to %s", argp[-2]);
 148                 switch (*icachesw = smatch (cp, caches)) {
 149                 case AMBIGSW:
 150                     ambigsw (cp, caches);
 151                     done (1);
 152                 case UNKWNSW:
 153                     adios (NULL, "%s unknown", cp);
 154                 default:
 155                     break;
 156                 }
 157                 continue;
 158
 159             case CHECKSW:
 160                 checksw++;
 161                 continue;
 162             case NCHECKSW:
 163                 checksw = 0;
 164                 continue;
 165
 166             case PARTSW:
 167                 if (!(cp = *argp++) || *cp == '-')
 168                     adios (NULL, "missing argument to %s", argp[-2]);
 169                 if (npart >= NPARTS)
 170                     adios (NULL, "too many parts (starting with %s), %d max",
 171                            cp, NPARTS);
 172                 parts[npart++] = cp;
 173                 continue;
 174
 175             case TYPESW:
 176                 if (!(cp = *argp++) || *cp == '-')
 177                     adios (NULL, "missing argument to %s", argp[-2]);
 178                 if (ntype >= NTYPES)
 179                     adios (NULL, "too many types (starting with %s), %d max",
 180                            cp, NTYPES);
 181                 types[ntype++] = cp;
 182                 continue;
 183
 184             case PREFERSW:
 185                 if (!(cp = *argp++) || *cp == '-')
 186                     adios (NULL, "missing argument to %s", argp[-2]);
 187                 if (npreferred >= NPREFS)
 188                     adios (NULL, "too many preferred types (starting with %s), %d max",
 189                            cp, NPREFS);
 190                 preferred_types[npreferred] = cp;
 191                 cp = strchr(cp, '/');
 192                 if (cp) *cp++ = '\0';
 193                 preferred_subtypes[npreferred++] = cp;
 194                 continue;
 195
 196             case FILESW:
 197                 if (!(cp = *argp++) || (*cp == '-' && cp[1]))
 198                     adios (NULL, "missing argument to %s", argp[-2]);
 199                 file = *cp == '-' ? cp : path (cp, TFILE);
 200                 continue;
 201
 202             case OUTFILESW:
 203                 if (!(cp = *argp++) || (*cp == '-' && cp[1]))
 204                     adios (NULL, "missing argument to %s", argp[-2]);
 205                 outfile = *cp == '-' ? cp : path (cp, TFILE);
 206                 continue;
 207
 208             case VERBSW:
 209                 verbosw = 1;
 210                 continue;
 211             case NVERBSW:
 212                 verbosw = 0;
 213                 continue;
 214             case CLOBBERSW:
 215                 if (!(cp = *argp++) || *cp == '-')
 216                     adios (NULL, "missing argument to %s", argp[-2]);
 217                 clobbersw = cp;
 218                 continue;
 219             case DEBUGSW:
 220                 debugsw = 1;
 221                 continue;
 222             }
 223         }
 224         if (*cp == '+' || *cp == '@') {
 225             if (folder)
 226                 adios (NULL, "only one folder at a time!");
 227             else
 228                 folder = pluspath (cp);
 229         } else
 230                 app_msgarg(&msgs, cp);
 231     }
 232
 233     /* null terminate the list of acceptable parts/types */
 234     parts[npart] = NULL;
 235     types[ntype] = NULL;
 236
 237     /*
 238      * Check if we've specified an additional profile
 239      */
 240     if ((cp = getenv ("MHSTORE"))) {
 241         if ((fp = fopen (cp, "r"))) {
 242             readconfig ((struct node **) 0, fp, cp, 0);
 243             fclose (fp);
 244         } else {
 245             admonish ("", "unable to read $MHSTORE profile (%s)", cp);
 246         }
 247     }
 248
 249     /*
 250      * Read the standard profile setup
 251      */
 252     if ((fp = fopen (cp = etcpath ("mhn.defaults"), "r"))) {
 253         readconfig ((struct node **) 0, fp, cp, 0);
 254         fclose (fp);
 255     }
 256
 257     /* Check for public cache location */
 258     if ((cache_public = context_find (nmhcache)) && *cache_public != '/')
 259         cache_public = NULL;
 260
 261     /* Check for private cache location */
 262     if (!(cache_private = context_find (nmhprivcache)))
 263         cache_private = ".cache";
 264     cache_private = getcpy (m_maildir (cache_private));
 265
 266     /*
 267      * Cache the current directory before we do any chdirs()'s.
 268      */
 269     cwd = add(pwd(), NULL);
 270
 271     if (!context_find ("path"))
 272         free (path ("./", TFOLDER));
 273
 274     if (file && msgs.size)
 275         adios (NULL, "cannot specify msg and file at same time!");
 276
 277     /*
 278      * check if message is coming from file
 279      */
 280     if (file) {
 281         if (!(cts = (CT *) mh_xcalloc ((size_t) 2, sizeof(*cts))))
 282             adios (NULL, "out of memory");
 283         ctp = cts;
 284
 285         if ((ct = parse_mime (file))) {
 286             *ctp++ = ct;
 287             if (outfile) {
 288                 ct->c_storage = add (outfile, NULL);
 289             }
 290         }
 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 *) mh_xcalloc ((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                     if (outfile) {
 330                         ct->c_storage = add (outfile, NULL);
 331                     }
 332                 }
 333             }
 334         }
 335     }
 336
 337     if (!*cts)
 338         done (1);
 339
 340     userrs = 1;
 341     SIGNAL (SIGQUIT, quitser);
 342     SIGNAL (SIGPIPE, pipeser);
 343
 344     /*
 345      * Get the associated umask for the relevant contents.
 346      */
 347     for (ctp = cts; *ctp; ctp++) {
 348         struct stat st;
 349
 350         ct = *ctp;
 351         if (type_ok (ct, 1) && !ct->c_umask) {
 352             if (stat (ct->c_file, &st) != NOTOK)
 353                 ct->c_umask = ~(st.st_mode & 0777);
 354             else
 355                 ct->c_umask = ~m_gmprot();
 356         }
 357     }
 358
 359     /*
 360      * Store the message content
 361      */
 362     info = mhstoreinfo_create (cts, cwd, clobbersw, autosw, verbosw);
 363     store_all_messages (info);
 364     files_not_clobbered = mhstoreinfo_files_not_clobbered(info);
 365     mhstoreinfo_free(info);
 366
 367     /* Now free all the structures for the content */
 368     for (ctp = cts; *ctp; ctp++)
 369         free_content (*ctp);
 370
 371     free (cts);
 372     cts = NULL;
 373
 374     /* If reading from a folder, do some updating */
 375     if (mp) {
 376         context_replace (pfolder, folder);/* update current folder  */
 377         seq_setcur (mp, mp->hghsel);      /* update current message */
 378         seq_save (mp);                    /* synchronize sequences  */
 379         context_save ();                  /* save the context file  */
 380     }
 381
 382     done (files_not_clobbered);
 383     return 1;
 384 }
 385
 386
 387 static void
 388 pipeser (int i)
 389 {
 390     if (i == SIGQUIT) {
 391         fflush (stdout);
 392         fprintf (stderr, "\n");
 393         fflush (stderr);
 394     }
 395
 396     done (1);
 397     /* NOTREACHED */
 398 }