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 static struct swit switches[] = {
  24 #define AUTOSW                  0
  25     { "auto", 0 },
  26 #define NAUTOSW                 1
  27     { "noauto", 0 },
  28 #define CHECKSW                 2
  29     { "check", 0 },
  30 #define NCHECKSW                3
  31     { "nocheck", 0 },
  32 #define VERBSW                  4
  33     { "verbose", 0 },
  34 #define NVERBSW                 5
  35     { "noverbose", 0 },
  36 #define FILESW                  6       /* interface from show */
  37     { "file file", 0 },
  38 #define PARTSW                  7
  39     { "part number", 0 },
  40 #define TYPESW                  8
  41     { "type content", 0 },
  42 #define RCACHESW                9
  43     { "rcache policy", 0 },
  44 #define WCACHESW               10
  45     { "wcache policy", 0 },
  46 #define VERSIONSW              11
  47     { "version", 0 },
  48 #define HELPSW                 12
  49     { "help", 0 },
  50
  51 /*
  52  * switches for debugging
  53  */
  54 #define DEBUGSW                13
  55     { "debug", -5 },
  56     { NULL, 0 }
  57 };
  58
  59
  60 /* mhparse.c */
  61 extern char *tmp;       /* directory to place temp files */
  62
  63 /* mhcachesbr.c */
  64 extern int rcachesw;
  65 extern int wcachesw;
  66 extern char *cache_public;
  67 extern char *cache_private;
  68
  69 /* mhstoresbr.c */
  70 extern int autosw;
  71 extern char *cwd;       /* cache current working directory */
  72
  73 /* mhmisc.c */
  74 extern int npart;
  75 extern int ntype;
  76 extern char *parts[NPARTS + 1];
  77 extern char *types[NTYPES + 1];
  78 extern int userrs;
  79
  80 int debugsw = 0;
  81 int verbosw = 0;
  82
  83 #define quitser pipeser
  84
  85 /* mhparse.c */
  86 CT parse_mime (char *);
  87
  88 /* mhmisc.c */
  89 int part_ok (CT, int);
  90 int type_ok (CT, int);
  91 void set_endian (void);
  92 void flush_errors (void);
  93
  94 /* mhstoresbr.c */
  95 void store_all_messages (CT *);
  96
  97 /* mhfree.c */
  98 void free_content (CT);
  99 extern CT *cts;
 100 void freects_done (int) NORETURN;
 101
 102 /*
 103  * static prototypes
 104  */
 105 static RETSIGTYPE pipeser (int);
 106
 107
 108 int
 109 main (int argc, char **argv)
 110 {
 111     int msgnum, *icachesw;
 112     char *cp, *file = NULL, *folder = NULL;
 113     char *maildir, buf[100], **argp;
 114     char **arguments;
 115     struct msgs_array msgs = { 0, 0, NULL };
 116     struct msgs *mp = NULL;
 117     CT ct, *ctp;
 118     FILE *fp;
 119
 120     done=freects_done;
 121
 122 #ifdef LOCALE
 123     setlocale(LC_ALL, "");
 124 #endif
 125     invo_name = r1bindex (argv[0], '/');
 126
 127     /* read user profile/context */
 128     context_read();
 129
 130     arguments = getarguments (invo_name, argc, argv, 1);
 131     argp = arguments;
 132
 133     /*
 134      * Parse arguments
 135      */
 136     while ((cp = *argp++)) {
 137         if (*cp == '-') {
 138             switch (smatch (++cp, switches)) {
 139             case AMBIGSW:
 140                 ambigsw (cp, switches);
 141                 done (1);
 142             case UNKWNSW:
 143                 adios (NULL, "-%s unknown", cp);
 144
 145             case HELPSW:
 146                 snprintf (buf, sizeof(buf), "%s [+folder] [msgs] [switches]",
 147                         invo_name);
 148                 print_help (buf, switches, 1);
 149                 done (1);
 150             case VERSIONSW:
 151                 print_version(invo_name);
 152                 done (1);
 153
 154             case AUTOSW:
 155                 autosw++;
 156                 continue;
 157             case NAUTOSW:
 158                 autosw = 0;
 159                 continue;
 160
 161             case RCACHESW:
 162                 icachesw = &rcachesw;
 163                 goto do_cache;
 164             case WCACHESW:
 165                 icachesw = &wcachesw;
 166 do_cache:
 167                 if (!(cp = *argp++) || *cp == '-')
 168                     adios (NULL, "missing argument to %s", argp[-2]);
 169                 switch (*icachesw = smatch (cp, caches)) {
 170                 case AMBIGSW:
 171                     ambigsw (cp, caches);
 172                     done (1);
 173                 case UNKWNSW:
 174                     adios (NULL, "%s unknown", cp);
 175                 default:
 176                     break;
 177                 }
 178                 continue;
 179
 180             case CHECKSW:
 181                 checksw++;
 182                 continue;
 183             case NCHECKSW:
 184                 checksw = 0;
 185                 continue;
 186
 187             case PARTSW:
 188                 if (!(cp = *argp++) || *cp == '-')
 189                     adios (NULL, "missing argument to %s", argp[-2]);
 190                 if (npart >= NPARTS)
 191                     adios (NULL, "too many parts (starting with %s), %d max",
 192                            cp, NPARTS);
 193                 parts[npart++] = cp;
 194                 continue;
 195
 196             case TYPESW:
 197                 if (!(cp = *argp++) || *cp == '-')
 198                     adios (NULL, "missing argument to %s", argp[-2]);
 199                 if (ntype >= NTYPES)
 200                     adios (NULL, "too many types (starting with %s), %d max",
 201                            cp, NTYPES);
 202                 types[ntype++] = cp;
 203                 continue;
 204
 205             case FILESW:
 206                 if (!(cp = *argp++) || (*cp == '-' && cp[1]))
 207                     adios (NULL, "missing argument to %s", argp[-2]);
 208                 file = *cp == '-' ? cp : path (cp, TFILE);
 209                 continue;
 210
 211             case VERBSW:
 212                 verbosw = 1;
 213                 continue;
 214             case NVERBSW:
 215                 verbosw = 0;
 216                 continue;
 217             case DEBUGSW:
 218                 debugsw = 1;
 219                 continue;
 220             }
 221         }
 222         if (*cp == '+' || *cp == '@') {
 223             if (folder)
 224                 adios (NULL, "only one folder at a time!");
 225             else
 226                 folder = pluspath (cp);
 227         } else
 228                 app_msgarg(&msgs, cp);
 229     }
 230
 231     /* null terminate the list of acceptable parts/types */
 232     parts[npart] = NULL;
 233     types[ntype] = NULL;
 234
 235     set_endian ();
 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 = getcpy (pwd());
 270
 271     /*
 272      * Check for storage directory.  If specified,
 273      * then store temporary files there.  Else we
 274      * store them in standard nmh directory.
 275      */
 276     if ((cp = context_find (nmhstorage)) && *cp)
 277         tmp = concat (cp, "/", invo_name, NULL);
 278     else
 279         tmp = add (m_maildir (invo_name), NULL);
 280
 281     if (!context_find ("path"))
 282         free (path ("./", TFOLDER));
 283
 284     if (file && msgs.size)
 285         adios (NULL, "cannot specify msg and file at same time!");
 286
 287     /*
 288      * check if message is coming from file
 289      */
 290     if (file) {
 291         if (!(cts = (CT *) calloc ((size_t) 2, sizeof(*cts))))
 292             adios (NULL, "out of memory");
 293         ctp = cts;
 294
 295         if ((ct = parse_mime (file)));
 296             *ctp++ = ct;
 297     } else {
 298         /*
 299          * message(s) are coming from a folder
 300          */
 301         if (!msgs.size)
 302             app_msgarg(&msgs, "cur");
 303         if (!folder)
 304             folder = getfolder (1);
 305         maildir = m_maildir (folder);
 306
 307         if (chdir (maildir) == NOTOK)
 308             adios (maildir, "unable to change directory to");
 309
 310         /* read folder and create message structure */
 311         if (!(mp = folder_read (folder)))
 312             adios (NULL, "unable to read folder %s", folder);
 313
 314         /* check for empty folder */
 315         if (mp->nummsg == 0)
 316             adios (NULL, "no messages in %s", folder);
 317
 318         /* parse all the message ranges/sequences and set SELECTED */
 319         for (msgnum = 0; msgnum < msgs.size; msgnum++)
 320             if (!m_convert (mp, msgs.msgs[msgnum]))
 321                 done (1);
 322         seq_setprev (mp);       /* set the previous-sequence */
 323
 324         if (!(cts = (CT *) calloc ((size_t) (mp->numsel + 1), sizeof(*cts))))
 325             adios (NULL, "out of memory");
 326         ctp = cts;
 327
 328         for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++) {
 329             if (is_selected(mp, msgnum)) {
 330                 char *msgnam;
 331
 332                 msgnam = m_name (msgnum);
 333                 if ((ct = parse_mime (msgnam)))
 334                     *ctp++ = ct;
 335             }
 336         }
 337     }
 338
 339     if (!*cts)
 340         done (1);
 341
 342     userrs = 1;
 343     SIGNAL (SIGQUIT, quitser);
 344     SIGNAL (SIGPIPE, pipeser);
 345
 346     /*
 347      * Get the associated umask for the relevant contents.
 348      */
 349     for (ctp = cts; *ctp; ctp++) {
 350         struct stat st;
 351
 352         ct = *ctp;
 353         if (type_ok (ct, 1) && !ct->c_umask) {
 354             if (stat (ct->c_file, &st) != NOTOK)
 355                 ct->c_umask = ~(st.st_mode & 0777);
 356             else
 357                 ct->c_umask = ~m_gmprot();
 358         }
 359     }
 360
 361     /*
 362      * Store the message content
 363      */
 364     store_all_messages (cts);
 365
 366     /* Now free all the structures for the content */
 367     for (ctp = cts; *ctp; ctp++)
 368         free_content (*ctp);
 369
 370     free ((char *) cts);
 371     cts = NULL;
 372
 373     /* If reading from a folder, do some updating */
 374     if (mp) {
 375         context_replace (pfolder, folder);/* update current folder  */
 376         seq_setcur (mp, mp->hghsel);      /* update current message */
 377         seq_save (mp);                    /* synchronize sequences  */
 378         context_save ();                  /* save the context file  */
 379     }
 380
 381     done (0);
 382     return 1;
 383 }
 384
 385
 386 static RETSIGTYPE
 387 pipeser (int i)
 388 {
 389     if (i == SIGQUIT) {
 390         unlink ("core");
 391         fflush (stdout);
 392         fprintf (stderr, "\n");
 393         fflush (stderr);
 394     }
 395
 396     done (1);
 397     /* NOTREACHED */
 398 }