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     setlocale(LC_ALL, "");
 112     invo_name = r1bindex (argv[0], '/');
 113
 114     /* read user profile/context */
 115     context_read();
 116
 117     arguments = getarguments (invo_name, argc, argv, 1);
 118     argp = arguments;
 119
 120     /*
 121      * Parse arguments
 122      */
 123     while ((cp = *argp++)) {
 124         if (*cp == '-') {
 125             switch (smatch (++cp, switches)) {
 126             case AMBIGSW:
 127                 ambigsw (cp, switches);
 128                 done (1);
 129             case UNKWNSW:
 130                 adios (NULL, "-%s unknown", cp);
 131
 132             case HELPSW:
 133                 snprintf (buf, sizeof(buf), "%s [+folder] [msgs] [switches]",
 134                         invo_name);
 135                 print_help (buf, switches, 1);
 136                 done (0);
 137             case VERSIONSW:
 138                 print_version(invo_name);
 139                 done (0);
 140
 141             case AUTOSW:
 142                 autosw++;
 143                 continue;
 144             case NAUTOSW:
 145                 autosw = 0;
 146                 continue;
 147
 148             case RCACHESW:
 149                 icachesw = &rcachesw;
 150                 goto do_cache;
 151             case WCACHESW:
 152                 icachesw = &wcachesw;
 153 do_cache:
 154                 if (!(cp = *argp++) || *cp == '-')
 155                     adios (NULL, "missing argument to %s", argp[-2]);
 156                 switch (*icachesw = smatch (cp, caches)) {
 157                 case AMBIGSW:
 158                     ambigsw (cp, caches);
 159                     done (1);
 160                 case UNKWNSW:
 161                     adios (NULL, "%s unknown", cp);
 162                 default:
 163                     break;
 164                 }
 165                 continue;
 166
 167             case CHECKSW:
 168                 checksw++;
 169                 continue;
 170             case NCHECKSW:
 171                 checksw = 0;
 172                 continue;
 173
 174             case PARTSW:
 175                 if (!(cp = *argp++) || *cp == '-')
 176                     adios (NULL, "missing argument to %s", argp[-2]);
 177                 if (npart >= NPARTS)
 178                     adios (NULL, "too many parts (starting with %s), %d max",
 179                            cp, NPARTS);
 180                 parts[npart++] = cp;
 181                 continue;
 182
 183             case TYPESW:
 184                 if (!(cp = *argp++) || *cp == '-')
 185                     adios (NULL, "missing argument to %s", argp[-2]);
 186                 if (ntype >= NTYPES)
 187                     adios (NULL, "too many types (starting with %s), %d max",
 188                            cp, NTYPES);
 189                 types[ntype++] = cp;
 190                 continue;
 191
 192             case FILESW:
 193                 if (!(cp = *argp++) || (*cp == '-' && cp[1]))
 194                     adios (NULL, "missing argument to %s", argp[-2]);
 195                 file = *cp == '-' ? cp : path (cp, TFILE);
 196                 continue;
 197
 198             case OUTFILESW:
 199                 if (!(cp = *argp++) || (*cp == '-' && cp[1]))
 200                     adios (NULL, "missing argument to %s", argp[-2]);
 201                 outfile = *cp == '-' ? cp : path (cp, TFILE);
 202                 continue;
 203
 204             case VERBSW:
 205                 verbosw = 1;
 206                 continue;
 207             case NVERBSW:
 208                 verbosw = 0;
 209                 continue;
 210             case CLOBBERSW:
 211                 if (!(cp = *argp++) || *cp == '-')
 212                     adios (NULL, "missing argument to %s", argp[-2]);
 213                 if (save_clobber_policy (cp)) {
 214                   adios (NULL, "invalid argument, %s, to %s", argp[-1],
 215                          argp[-2]);
 216                 }
 217                 continue;
 218             case DEBUGSW:
 219                 debugsw = 1;
 220                 continue;
 221             }
 222         }
 223         if (*cp == '+' || *cp == '@') {
 224             if (folder)
 225                 adios (NULL, "only one folder at a time!");
 226             else
 227                 folder = pluspath (cp);
 228         } else
 229                 app_msgarg(&msgs, cp);
 230     }
 231
 232     /* null terminate the list of acceptable parts/types */
 233     parts[npart] = NULL;
 234     types[ntype] = NULL;
 235
 236     /*
 237      * Check if we've specified an additional profile
 238      */
 239     if ((cp = getenv ("MHSTORE"))) {
 240         if ((fp = fopen (cp, "r"))) {
 241             readconfig ((struct node **) 0, fp, cp, 0);
 242             fclose (fp);
 243         } else {
 244             admonish ("", "unable to read $MHSTORE profile (%s)", cp);
 245         }
 246     }
 247
 248     /*
 249      * Read the standard profile setup
 250      */
 251     if ((fp = fopen (cp = etcpath ("mhn.defaults"), "r"))) {
 252         readconfig ((struct node **) 0, fp, cp, 0);
 253         fclose (fp);
 254     }
 255
 256     /* Check for public cache location */
 257     if ((cache_public = context_find (nmhcache)) && *cache_public != '/')
 258         cache_public = NULL;
 259
 260     /* Check for private cache location */
 261     if (!(cache_private = context_find (nmhprivcache)))
 262         cache_private = ".cache";
 263     cache_private = getcpy (m_maildir (cache_private));
 264
 265     /*
 266      * Cache the current directory before we do any chdirs()'s.
 267      */
 268     cwd = getcpy (pwd());
 269
 270     /*
 271      * Check for storage directory.  If specified,
 272      * then store temporary files there.  Else we
 273      * store them in standard nmh directory.
 274      */
 275     if ((cp = context_find (nmhstorage)) && *cp)
 276         tmp = concat (cp, "/", invo_name, NULL);
 277     else
 278         tmp = add (m_maildir (invo_name), NULL);
 279
 280     if (!context_find ("path"))
 281         free (path ("./", TFOLDER));
 282
 283     if (file && msgs.size)
 284         adios (NULL, "cannot specify msg and file at same time!");
 285
 286     /*
 287      * check if message is coming from file
 288      */
 289     if (file) {
 290         if (!(cts = (CT *) calloc ((size_t) 2, sizeof(*cts))))
 291             adios (NULL, "out of memory");
 292         ctp = cts;
 293
 294         if ((ct = parse_mime (file))) {
 295             *ctp++ = ct;
 296             if (outfile) {
 297                 ct->c_storage = outfile;
 298             }
 299         }
 300     } else {
 301         /*
 302          * message(s) are coming from a folder
 303          */
 304         if (!msgs.size)
 305             app_msgarg(&msgs, "cur");
 306         if (!folder)
 307             folder = getfolder (1);
 308         maildir = m_maildir (folder);
 309
 310         if (chdir (maildir) == NOTOK)
 311             adios (maildir, "unable to change directory to");
 312
 313         /* read folder and create message structure */
 314         if (!(mp = folder_read (folder, 1)))
 315             adios (NULL, "unable to read folder %s", folder);
 316
 317         /* check for empty folder */
 318         if (mp->nummsg == 0)
 319             adios (NULL, "no messages in %s", folder);
 320
 321         /* parse all the message ranges/sequences and set SELECTED */
 322         for (msgnum = 0; msgnum < msgs.size; msgnum++)
 323             if (!m_convert (mp, msgs.msgs[msgnum]))
 324                 done (1);
 325         seq_setprev (mp);       /* set the previous-sequence */
 326
 327         if (!(cts = (CT *) calloc ((size_t) (mp->numsel + 1), sizeof(*cts))))
 328             adios (NULL, "out of memory");
 329         ctp = cts;
 330
 331         for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++) {
 332             if (is_selected(mp, msgnum)) {
 333                 char *msgnam;
 334
 335                 msgnam = m_name (msgnum);
 336                 if ((ct = parse_mime (msgnam))) {
 337                     *ctp++ = ct;
 338                     if (outfile) {
 339                         ct->c_storage = add (outfile, NULL);
 340                     }
 341                 }
 342             }
 343         }
 344     }
 345
 346     if (!*cts)
 347         done (1);
 348
 349     userrs = 1;
 350     SIGNAL (SIGQUIT, quitser);
 351     SIGNAL (SIGPIPE, pipeser);
 352
 353     /*
 354      * Get the associated umask for the relevant contents.
 355      */
 356     for (ctp = cts; *ctp; ctp++) {
 357         struct stat st;
 358
 359         ct = *ctp;
 360         if (type_ok (ct, 1) && !ct->c_umask) {
 361             if (stat (ct->c_file, &st) != NOTOK)
 362                 ct->c_umask = ~(st.st_mode & 0777);
 363             else
 364                 ct->c_umask = ~m_gmprot();
 365         }
 366     }
 367
 368     /*
 369      * Store the message content
 370      */
 371     store_all_messages (cts);
 372
 373     /* Now free all the structures for the content */
 374     for (ctp = cts; *ctp; ctp++)
 375         free_content (*ctp);
 376
 377     free ((char *) cts);
 378     cts = NULL;
 379
 380     /* If reading from a folder, do some updating */
 381     if (mp) {
 382         context_replace (pfolder, folder);/* update current folder  */
 383         seq_setcur (mp, mp->hghsel);      /* update current message */
 384         seq_save (mp);                    /* synchronize sequences  */
 385         context_save ();                  /* save the context file  */
 386     }
 387
 388     done (files_not_clobbered);
 389     return 1;
 390 }
 391
 392
 393 static void
 394 pipeser (int i)
 395 {
 396     if (i == SIGQUIT) {
 397         fflush (stdout);
 398         fprintf (stderr, "\n");
 399         fflush (stderr);
 400     }
 401
 402     done (1);
 403     /* NOTREACHED */
 404 }