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