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 <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 #define MHBUILD_SWITCHES \
  24     X("check", 0, CHECKSW) \
  25     X("nocheck", 0, NCHECKSW) \
  26     X("directives", 0, DIRECTIVES) \
  27     X("nodirectives", 0, NDIRECTIVES) \
  28     X("headers", 0, HEADSW) \
  29     X("noheaders", 0, NHEADSW) \
  30     X("list", 0, LISTSW) \
  31     X("nolist", 0, NLISTSW) \
  32     X("realsize", 0, SIZESW) \
  33     X("norealsize", 0, NSIZESW) \
  34     X("rfc934mode", 0, RFC934SW) \
  35     X("norfc934mode", 0, NRFC934SW) \
  36     X("verbose", 0, VERBSW) \
  37     X("noverbose", 0, NVERBSW) \
  38     X("rcache policy", 0, RCACHESW) \
  39     X("wcache policy", 0, WCACHESW) \
  40     X("contentid", 0, CONTENTIDSW) \
  41     X("nocontentid", 0, NCONTENTIDSW) \
  42     X("version", 0, VERSIONSW) \
  43     X("help", 0, HELPSW) \
  44     X("debug", -5, DEBUGSW) \
  45
  46 #define X(sw, minchars, id) id,
  47 DEFINE_SWITCH_ENUM(MHBUILD);
  48 #undef X
  49
  50 #define X(sw, minchars, id) { sw, minchars, id },
  51 DEFINE_SWITCH_ARRAY(MHBUILD, switches);
  52 #undef X
  53
  54
  55 /* mhbuildsbr.c */
  56 extern char *tmp;       /* directory to place temp files */
  57
  58 /* mhcachesbr.c */
  59 extern int rcachesw;
  60 extern int wcachesw;
  61 extern char *cache_public;
  62 extern char *cache_private;
  63
  64 int debugsw = 0;
  65 int verbosw = 0;
  66
  67 int listsw   = 0;
  68 int rfc934sw = 0;
  69 int contentidsw = 1;
  70
  71 /*
  72  * Temporary files
  73  */
  74 static char infile[BUFSIZ];
  75 static int unlink_infile  = 0;
  76
  77 static char outfile[BUFSIZ];
  78 static int unlink_outfile = 0;
  79
  80 static void unlink_done (int) NORETURN;
  81
  82 /* mhbuildsbr.c */
  83 CT build_mime (char *, int);
  84 int output_message (CT, char *);
  85 int output_message_fp (CT, FILE *, char*);
  86
  87 /* mhlistsbr.c */
  88 int list_all_messages (CT *, int, int, int, int);
  89
  90
  91 int
  92 main (int argc, char **argv)
  93 {
  94     int sizesw = 1, headsw = 1, directives = 1;
  95     int *icachesw;
  96     char *cp, buf[BUFSIZ];
  97     char buffer[BUFSIZ], *compfile = NULL;
  98     char **argp, **arguments;
  99     CT ct, cts[2];
 100     FILE *fp = NULL;
 101     FILE *fp_out = NULL;
 102
 103     done=unlink_done;
 104
 105 #ifdef LOCALE
 106     setlocale(LC_ALL, "");
 107 #endif
 108     invo_name = r1bindex (argv[0], '/');
 109
 110     /* read user profile/context */
 111     context_read();
 112
 113     arguments = getarguments (invo_name, argc, argv, 1);
 114     argp = arguments;
 115
 116     while ((cp = *argp++)) {
 117         if (cp[0] == '-' && cp[1] == '\0') {
 118             if (compfile)
 119                 adios (NULL, "cannot specify both standard input and a file");
 120             else
 121                 compfile = cp;
 122             listsw = 0;         /* turn off -list if using standard in/out */
 123             verbosw = 0;        /* turn off -verbose listings */
 124             break;
 125         }
 126         if (*cp == '-') {
 127             switch (smatch (++cp, switches)) {
 128             case AMBIGSW:
 129                 ambigsw (cp, switches);
 130                 done (1);
 131             case UNKWNSW:
 132                 adios (NULL, "-%s unknown", cp);
 133
 134             case HELPSW:
 135                 snprintf (buf, sizeof(buf), "%s [switches] file", invo_name);
 136                 print_help (buf, switches, 1);
 137                 done (0);
 138             case VERSIONSW:
 139                 print_version(invo_name);
 140                 done (0);
 141
 142             case RCACHESW:
 143                 icachesw = &rcachesw;
 144                 goto do_cache;
 145             case WCACHESW:
 146                 icachesw = &wcachesw;
 147             do_cache: ;
 148                 if (!(cp = *argp++) || *cp == '-')
 149                     adios (NULL, "missing argument to %s", argp[-2]);
 150                 switch (*icachesw = smatch (cp, caches)) {
 151                 case AMBIGSW:
 152                     ambigsw (cp, caches);
 153                     done (1);
 154                 case UNKWNSW:
 155                     adios (NULL, "%s unknown", cp);
 156                 default:
 157                     break;
 158                 }
 159                 continue;
 160
 161             case CHECKSW:
 162                 checksw++;
 163                 continue;
 164             case NCHECKSW:
 165                 checksw = 0;
 166                 continue;
 167
 168             case HEADSW:
 169                 headsw++;
 170                 continue;
 171             case NHEADSW:
 172                 headsw = 0;
 173                 continue;
 174
 175             case DIRECTIVES:
 176                 directives = 1;
 177                 continue;
 178             case NDIRECTIVES:
 179                 directives = 0;
 180                 continue;
 181
 182             case LISTSW:
 183                 listsw++;
 184                 continue;
 185             case NLISTSW:
 186                 listsw = 0;
 187                 continue;
 188
 189             case RFC934SW:
 190                 rfc934sw++;
 191                 continue;
 192             case NRFC934SW:
 193                 rfc934sw = 0;
 194                 continue;
 195
 196             case SIZESW:
 197                 sizesw++;
 198                 continue;
 199             case NSIZESW:
 200                 sizesw = 0;
 201                 continue;
 202
 203             case CONTENTIDSW:
 204                 contentidsw = 1;
 205                 continue;
 206             case NCONTENTIDSW:
 207                 contentidsw = 0;
 208                 continue;
 209
 210             case VERBSW:
 211                 verbosw++;
 212                 continue;
 213             case NVERBSW:
 214                 verbosw = 0;
 215                 continue;
 216             case DEBUGSW:
 217                 debugsw = 1;
 218                 continue;
 219             }
 220         }
 221         if (compfile)
 222             adios (NULL, "only one composition file allowed");
 223         else
 224             compfile = cp;
 225     }
 226
 227     /*
 228      * Check if we've specified an additional profile
 229      */
 230     if ((cp = getenv ("MHBUILD"))) {
 231         if ((fp = fopen (cp, "r"))) {
 232             readconfig ((struct node **) 0, fp, cp, 0);
 233             fclose (fp);
 234         } else {
 235             admonish ("", "unable to read $MHBUILD profile (%s)", cp);
 236         }
 237     }
 238
 239     /*
 240      * Read the standard profile setup
 241      */
 242     if ((fp = fopen (cp = etcpath ("mhn.defaults"), "r"))) {
 243         readconfig ((struct node **) 0, fp, cp, 0);
 244         fclose (fp);
 245     }
 246
 247     /* Check for public cache location */
 248     if ((cache_public = context_find (nmhcache)) && *cache_public != '/')
 249         cache_public = NULL;
 250
 251     /* Check for private cache location */
 252     if (!(cache_private = context_find (nmhprivcache)))
 253         cache_private = ".cache";
 254     cache_private = getcpy (m_maildir (cache_private));
 255
 256     /*
 257      * Check for storage directory.  If defined, we
 258      * will store temporary files there.  Else we
 259      * store them in standard nmh directory.
 260      */
 261     if ((cp = context_find (nmhstorage)) && *cp)
 262         tmp = concat (cp, "/", invo_name, NULL);
 263     else
 264         tmp = add (m_maildir (invo_name), NULL);
 265
 266     if (!context_find ("path"))
 267         free (path ("./", TFOLDER));
 268
 269     /* Check if we have a file to process */
 270     if (!compfile)
 271         adios (NULL, "need to specify a %s composition file", invo_name);
 272
 273     /*
 274      * Process the composition file from standard input.
 275      */
 276     if (compfile[0] == '-' && compfile[1] == '\0') {
 277         /* copy standard input to temporary file */
 278         strncpy (infile, m_mktemp(invo_name, NULL, &fp), sizeof(infile));
 279         while (fgets (buffer, BUFSIZ, stdin))
 280             fputs (buffer, fp);
 281         fclose (fp);
 282         unlink_infile = 1;
 283
 284         /* build the content structures for MIME message */
 285         ct = build_mime (infile, directives);
 286         cts[0] = ct;
 287         cts[1] = NULL;
 288
 289         /* output MIME message to this temporary file */
 290         strncpy (outfile, m_mktemp(invo_name, NULL, &fp_out), sizeof(outfile));
 291         unlink_outfile = 1;
 292
 293         /* output the message */
 294         output_message_fp (ct, fp_out, outfile);
 295         fclose(fp_out);
 296
 297         /* output the temp file to standard output */
 298         if ((fp = fopen (outfile, "r")) == NULL)
 299             adios (outfile, "unable to open");
 300         while (fgets (buffer, BUFSIZ, fp))
 301             fputs (buffer, stdout);
 302         fclose (fp);
 303
 304         unlink (infile);
 305         unlink_infile = 0;
 306
 307         unlink (outfile);
 308         unlink_outfile = 0;
 309
 310         free_content (ct);
 311         done (0);
 312     }
 313
 314     /*
 315      * Process the composition file from a file.
 316      */
 317
 318     /* build the content structures for MIME message */
 319     ct = build_mime (compfile, directives);
 320     cts[0] = ct;
 321     cts[1] = NULL;
 322
 323     /* output MIME message to this temporary file */
 324     strncpy(outfile, m_mktemp2(compfile, invo_name, NULL, &fp_out),
 325             sizeof(outfile));
 326     unlink_outfile = 1;
 327
 328     /* output the message */
 329     output_message_fp (ct, fp_out, outfile);
 330     fclose(fp_out);
 331
 332     /*
 333      * List the message info
 334      */
 335     if (listsw)
 336         list_all_messages (cts, headsw, sizesw, verbosw, debugsw);
 337
 338     /* Rename composition draft */
 339     snprintf (buffer, sizeof(buffer), "%s.orig", m_backup (compfile));
 340     if (rename (compfile, buffer) == NOTOK) {
 341         adios (compfile, "unable to rename comp draft %s to", buffer);
 342     }
 343
 344     /* Rename output file to take its place */
 345     if (rename (outfile, compfile) == NOTOK) {
 346         advise (outfile, "unable to rename output %s to", compfile);
 347         rename (buffer, compfile);
 348         done (1);
 349     }
 350     unlink_outfile = 0;
 351
 352     free_content (ct);
 353     done (0);
 354     return 1;
 355 }
 356
 357
 358 static void
 359 unlink_done (int status)
 360 {
 361     /*
 362      * Check if we need to remove stray
 363      * temporary files.
 364      */
 365     if (unlink_infile)
 366         unlink (infile);
 367     if (unlink_outfile)
 368         unlink (outfile);
 369
 370     exit (status);
 371 }