diplodocus.org Git - nmh/blob - uip/mhbuild.c

   1
   2 /*
   3  * mhbuild.c -- expand/translate MIME composition files
   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 <signal.h>
  15 #include <h/mts.h>
  16 #include <h/tws.h>
  17 #include <h/mime.h>
  18 #include <h/mhparse.h>
  19 #include <h/mhcachesbr.h>
  20 #include <h/utils.h>
  21
  22 #define MHBUILD_SWITCHES \
  23     X("check", 0, CHECKSW) \
  24     X("nocheck", 0, NCHECKSW) \
  25     X("directives", 0, DIRECTIVES) \
  26     X("nodirectives", 0, NDIRECTIVES) \
  27     X("headers", 0, HEADSW) \
  28     X("noheaders", 0, NHEADSW) \
  29     X("list", 0, LISTSW) \
  30     X("nolist", 0, NLISTSW) \
  31     X("realsize", 0, SIZESW) \
  32     X("norealsize", 0, NSIZESW) \
  33     X("rfc934mode", 0, RFC934SW) \
  34     X("norfc934mode", 0, NRFC934SW) \
  35     X("verbose", 0, VERBSW) \
  36     X("noverbose", 0, NVERBSW) \
  37     X("rcache policy", 0, RCACHESW) \
  38     X("wcache policy", 0, WCACHESW) \
  39     X("contentid", 0, CONTENTIDSW) \
  40     X("nocontentid", 0, NCONTENTIDSW) \
  41     X("version", 0, VERSIONSW) \
  42     X("help", 0, HELPSW) \
  43     X("debug", -5, DEBUGSW) \
  44
  45 #define X(sw, minchars, id) id,
  46 DEFINE_SWITCH_ENUM(MHBUILD);
  47 #undef X
  48
  49 #define X(sw, minchars, id) { sw, minchars, id },
  50 DEFINE_SWITCH_ARRAY(MHBUILD, switches);
  51 #undef X
  52
  53
  54 /* mhbuildsbr.c */
  55 extern char *tmp;       /* directory to place temp files */
  56
  57 /* mhcachesbr.c */
  58 extern int rcachesw;
  59 extern int wcachesw;
  60 extern char *cache_public;
  61 extern char *cache_private;
  62
  63 int debugsw = 0;
  64 int verbosw = 0;
  65
  66 int listsw   = 0;
  67 int rfc934sw = 0;
  68 int contentidsw = 1;
  69
  70 /*
  71  * Temporary files
  72  */
  73 static char infile[BUFSIZ];
  74 static int unlink_infile  = 0;
  75
  76 static char outfile[BUFSIZ];
  77 static int unlink_outfile = 0;
  78
  79 static void unlink_done (int) NORETURN;
  80
  81 /* mhbuildsbr.c */
  82 CT build_mime (char *, int);
  83 int output_message (CT, char *);
  84 int output_message_fp (CT, FILE *, char*);
  85
  86 /* mhlistsbr.c */
  87 int list_all_messages (CT *, int, int, int, int);
  88
  89
  90 int
  91 main (int argc, char **argv)
  92 {
  93     int sizesw = 1, headsw = 1, directives = 1;
  94     int *icachesw;
  95     char *cp, buf[BUFSIZ];
  96     char buffer[BUFSIZ], *compfile = NULL;
  97     char **argp, **arguments;
  98     CT ct, cts[2];
  99     FILE *fp = NULL;
 100     FILE *fp_out = NULL;
 101
 102     done=unlink_done;
 103
 104 #ifdef LOCALE
 105     setlocale(LC_ALL, "");
 106 #endif
 107     invo_name = r1bindex (argv[0], '/');
 108
 109     /* read user profile/context */
 110     context_read();
 111
 112     arguments = getarguments (invo_name, argc, argv, 1);
 113     argp = arguments;
 114
 115     while ((cp = *argp++)) {
 116         if (cp[0] == '-' && cp[1] == '\0') {
 117             if (compfile)
 118                 adios (NULL, "cannot specify both standard input and a file");
 119             else
 120                 compfile = cp;
 121             listsw = 0;         /* turn off -list if using standard in/out */
 122             verbosw = 0;        /* turn off -verbose listings */
 123             break;
 124         }
 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 [switches] file", 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 RCACHESW:
 142                 icachesw = &rcachesw;
 143                 goto do_cache;
 144             case WCACHESW:
 145                 icachesw = &wcachesw;
 146             do_cache: ;
 147                 if (!(cp = *argp++) || *cp == '-')
 148                     adios (NULL, "missing argument to %s", argp[-2]);
 149                 switch (*icachesw = smatch (cp, caches)) {
 150                 case AMBIGSW:
 151                     ambigsw (cp, caches);
 152                     done (1);
 153                 case UNKWNSW:
 154                     adios (NULL, "%s unknown", cp);
 155                 default:
 156                     break;
 157                 }
 158                 continue;
 159
 160             case CHECKSW:
 161                 checksw++;
 162                 continue;
 163             case NCHECKSW:
 164                 checksw = 0;
 165                 continue;
 166
 167             case HEADSW:
 168                 headsw++;
 169                 continue;
 170             case NHEADSW:
 171                 headsw = 0;
 172                 continue;
 173
 174             case DIRECTIVES:
 175                 directives = 1;
 176                 continue;
 177             case NDIRECTIVES:
 178                 directives = 0;
 179                 continue;
 180
 181             case LISTSW:
 182                 listsw++;
 183                 continue;
 184             case NLISTSW:
 185                 listsw = 0;
 186                 continue;
 187
 188             case RFC934SW:
 189                 rfc934sw++;
 190                 continue;
 191             case NRFC934SW:
 192                 rfc934sw = 0;
 193                 continue;
 194
 195             case SIZESW:
 196                 sizesw++;
 197                 continue;
 198             case NSIZESW:
 199                 sizesw = 0;
 200                 continue;
 201
 202             case CONTENTIDSW:
 203                 contentidsw = 1;
 204                 continue;
 205             case NCONTENTIDSW:
 206                 contentidsw = 0;
 207                 continue;
 208
 209             case VERBSW:
 210                 verbosw++;
 211                 continue;
 212             case NVERBSW:
 213                 verbosw = 0;
 214                 continue;
 215             case DEBUGSW:
 216                 debugsw = 1;
 217                 continue;
 218             }
 219         }
 220         if (compfile)
 221             adios (NULL, "only one composition file allowed");
 222         else
 223             compfile = cp;
 224     }
 225
 226     /*
 227      * Check if we've specified an additional profile
 228      */
 229     if ((cp = getenv ("MHBUILD"))) {
 230         if ((fp = fopen (cp, "r"))) {
 231             readconfig ((struct node **) 0, fp, cp, 0);
 232             fclose (fp);
 233         } else {
 234             admonish ("", "unable to read $MHBUILD profile (%s)", cp);
 235         }
 236     }
 237
 238     /*
 239      * Read the standard profile setup
 240      */
 241     if ((fp = fopen (cp = etcpath ("mhn.defaults"), "r"))) {
 242         readconfig ((struct node **) 0, fp, cp, 0);
 243         fclose (fp);
 244     }
 245
 246     /* Check for public cache location */
 247     if ((cache_public = context_find (nmhcache)) && *cache_public != '/')
 248         cache_public = NULL;
 249
 250     /* Check for private cache location */
 251     if (!(cache_private = context_find (nmhprivcache)))
 252         cache_private = ".cache";
 253     cache_private = getcpy (m_maildir (cache_private));
 254
 255     /*
 256      * Check for storage directory.  If defined, we
 257      * will store temporary files there.  Else we
 258      * store them in standard nmh directory.
 259      */
 260     if ((cp = context_find (nmhstorage)) && *cp)
 261         tmp = concat (cp, "/", invo_name, NULL);
 262     else
 263         tmp = add (m_maildir (invo_name), NULL);
 264
 265     if (!context_find ("path"))
 266         free (path ("./", TFOLDER));
 267
 268     /* Check if we have a file to process */
 269     if (!compfile)
 270         adios (NULL, "need to specify a %s composition file", invo_name);
 271
 272     /*
 273      * Process the composition file from standard input.
 274      */
 275     if (compfile[0] == '-' && compfile[1] == '\0') {
 276         /* copy standard input to temporary file */
 277         strncpy (infile, m_mktemp(invo_name, NULL, &fp), sizeof(infile));
 278         while (fgets (buffer, BUFSIZ, stdin))
 279             fputs (buffer, fp);
 280         fclose (fp);
 281         unlink_infile = 1;
 282
 283         /* build the content structures for MIME message */
 284         ct = build_mime (infile, directives);
 285         cts[0] = ct;
 286         cts[1] = NULL;
 287
 288         /* output MIME message to this temporary file */
 289         strncpy (outfile, m_mktemp(invo_name, NULL, &fp_out), sizeof(outfile));
 290         unlink_outfile = 1;
 291
 292         /* output the message */
 293         output_message_fp (ct, fp_out, outfile);
 294         fclose(fp_out);
 295
 296         /* output the temp file to standard output */
 297         if ((fp = fopen (outfile, "r")) == NULL)
 298             adios (outfile, "unable to open");
 299         while (fgets (buffer, BUFSIZ, fp))
 300             fputs (buffer, stdout);
 301         fclose (fp);
 302
 303         unlink (infile);
 304         unlink_infile = 0;
 305
 306         unlink (outfile);
 307         unlink_outfile = 0;
 308
 309         free_content (ct);
 310         done (0);
 311     }
 312
 313     /*
 314      * Process the composition file from a file.
 315      */
 316
 317     /* build the content structures for MIME message */
 318     ct = build_mime (compfile, directives);
 319     cts[0] = ct;
 320     cts[1] = NULL;
 321
 322     /* output MIME message to this temporary file */
 323     strncpy(outfile, m_mktemp2(compfile, invo_name, NULL, &fp_out),
 324             sizeof(outfile));
 325     unlink_outfile = 1;
 326
 327     /* output the message */
 328     output_message_fp (ct, fp_out, outfile);
 329     fclose(fp_out);
 330
 331     /*
 332      * List the message info
 333      */
 334     if (listsw)
 335         list_all_messages (cts, headsw, sizesw, verbosw, debugsw);
 336
 337     /* Rename composition draft */
 338     snprintf (buffer, sizeof(buffer), "%s.orig", m_backup (compfile));
 339     if (rename (compfile, buffer) == NOTOK) {
 340         adios (compfile, "unable to rename comp draft %s to", buffer);
 341     }
 342
 343     /* Rename output file to take its place */
 344     if (rename (outfile, compfile) == NOTOK) {
 345         advise (outfile, "unable to rename output %s to", compfile);
 346         rename (buffer, compfile);
 347         done (1);
 348     }
 349     unlink_outfile = 0;
 350
 351     free_content (ct);
 352     done (0);
 353     return 1;
 354 }
 355
 356
 357 static void
 358 unlink_done (int status)
 359 {
 360     /*
 361      * Check if we need to remove stray
 362      * temporary files.
 363      */
 364     if (unlink_infile)
 365         unlink (infile);
 366     if (unlink_outfile)
 367         unlink (outfile);
 368
 369     exit (status);
 370 }