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 /* mhfree.c */
  91 void free_content (CT);
  92
  93
  94 int
  95 main (int argc, char **argv)
  96 {
  97     int sizesw = 1, headsw = 1, directives = 1;
  98     int *icachesw;
  99     char *cp, buf[BUFSIZ];
 100     char buffer[BUFSIZ], *compfile = NULL;
 101     char **argp, **arguments;
 102     CT ct, cts[2];
 103     FILE *fp = NULL;
 104     FILE *fp_out = NULL;
 105
 106     done=unlink_done;
 107
 108 #ifdef LOCALE
 109     setlocale(LC_ALL, "");
 110 #endif
 111     invo_name = r1bindex (argv[0], '/');
 112
 113     /* read user profile/context */
 114     context_read();
 115
 116     arguments = getarguments (invo_name, argc, argv, 1);
 117     argp = arguments;
 118
 119     while ((cp = *argp++)) {
 120         if (cp[0] == '-' && cp[1] == '\0') {
 121             if (compfile)
 122                 adios (NULL, "cannot specify both standard input and a file");
 123             else
 124                 compfile = cp;
 125             listsw = 0;         /* turn off -list if using standard in/out */
 126             verbosw = 0;        /* turn off -verbose listings */
 127             break;
 128         }
 129         if (*cp == '-') {
 130             switch (smatch (++cp, switches)) {
 131             case AMBIGSW:
 132                 ambigsw (cp, switches);
 133                 done (1);
 134             case UNKWNSW:
 135                 adios (NULL, "-%s unknown", cp);
 136
 137             case HELPSW:
 138                 snprintf (buf, sizeof(buf), "%s [switches] file", invo_name);
 139                 print_help (buf, switches, 1);
 140                 done (0);
 141             case VERSIONSW:
 142                 print_version(invo_name);
 143                 done (0);
 144
 145             case RCACHESW:
 146                 icachesw = &rcachesw;
 147                 goto do_cache;
 148             case WCACHESW:
 149                 icachesw = &wcachesw;
 150             do_cache: ;
 151                 if (!(cp = *argp++) || *cp == '-')
 152                     adios (NULL, "missing argument to %s", argp[-2]);
 153                 switch (*icachesw = smatch (cp, caches)) {
 154                 case AMBIGSW:
 155                     ambigsw (cp, caches);
 156                     done (1);
 157                 case UNKWNSW:
 158                     adios (NULL, "%s unknown", cp);
 159                 default:
 160                     break;
 161                 }
 162                 continue;
 163
 164             case CHECKSW:
 165                 checksw++;
 166                 continue;
 167             case NCHECKSW:
 168                 checksw = 0;
 169                 continue;
 170
 171             case HEADSW:
 172                 headsw++;
 173                 continue;
 174             case NHEADSW:
 175                 headsw = 0;
 176                 continue;
 177
 178             case DIRECTIVES:
 179                 directives = 1;
 180                 continue;
 181             case NDIRECTIVES:
 182                 directives = 0;
 183                 continue;
 184
 185             case LISTSW:
 186                 listsw++;
 187                 continue;
 188             case NLISTSW:
 189                 listsw = 0;
 190                 continue;
 191
 192             case RFC934SW:
 193                 rfc934sw++;
 194                 continue;
 195             case NRFC934SW:
 196                 rfc934sw = 0;
 197                 continue;
 198
 199             case SIZESW:
 200                 sizesw++;
 201                 continue;
 202             case NSIZESW:
 203                 sizesw = 0;
 204                 continue;
 205
 206             case CONTENTIDSW:
 207                 contentidsw = 1;
 208                 continue;
 209             case NCONTENTIDSW:
 210                 contentidsw = 0;
 211                 continue;
 212
 213             case VERBSW:
 214                 verbosw++;
 215                 continue;
 216             case NVERBSW:
 217                 verbosw = 0;
 218                 continue;
 219             case DEBUGSW:
 220                 debugsw = 1;
 221                 continue;
 222             }
 223         }
 224         if (compfile)
 225             adios (NULL, "only one composition file allowed");
 226         else
 227             compfile = cp;
 228     }
 229
 230     /*
 231      * Check if we've specified an additional profile
 232      */
 233     if ((cp = getenv ("MHBUILD"))) {
 234         if ((fp = fopen (cp, "r"))) {
 235             readconfig ((struct node **) 0, fp, cp, 0);
 236             fclose (fp);
 237         } else {
 238             admonish ("", "unable to read $MHBUILD profile (%s)", cp);
 239         }
 240     }
 241
 242     /*
 243      * Read the standard profile setup
 244      */
 245     if ((fp = fopen (cp = etcpath ("mhn.defaults"), "r"))) {
 246         readconfig ((struct node **) 0, fp, cp, 0);
 247         fclose (fp);
 248     }
 249
 250     /* Check for public cache location */
 251     if ((cache_public = context_find (nmhcache)) && *cache_public != '/')
 252         cache_public = NULL;
 253
 254     /* Check for private cache location */
 255     if (!(cache_private = context_find (nmhprivcache)))
 256         cache_private = ".cache";
 257     cache_private = getcpy (m_maildir (cache_private));
 258
 259     /*
 260      * Check for storage directory.  If defined, we
 261      * will store temporary files there.  Else we
 262      * store them in standard nmh directory.
 263      */
 264     if ((cp = context_find (nmhstorage)) && *cp)
 265         tmp = concat (cp, "/", invo_name, NULL);
 266     else
 267         tmp = add (m_maildir (invo_name), NULL);
 268
 269     if (!context_find ("path"))
 270         free (path ("./", TFOLDER));
 271
 272     /* Check if we have a file to process */
 273     if (!compfile)
 274         adios (NULL, "need to specify a %s composition file", invo_name);
 275
 276     /*
 277      * Process the composition file from standard input.
 278      */
 279     if (compfile[0] == '-' && compfile[1] == '\0') {
 280         /* copy standard input to temporary file */
 281         strncpy (infile, m_mktemp(invo_name, NULL, &fp), sizeof(infile));
 282         while (fgets (buffer, BUFSIZ, stdin))
 283             fputs (buffer, fp);
 284         fclose (fp);
 285         unlink_infile = 1;
 286
 287         /* build the content structures for MIME message */
 288         ct = build_mime (infile, directives);
 289         cts[0] = ct;
 290         cts[1] = NULL;
 291
 292         /* output MIME message to this temporary file */
 293         strncpy (outfile, m_mktemp(invo_name, NULL, &fp_out), sizeof(outfile));
 294         unlink_outfile = 1;
 295
 296         /* output the message */
 297         output_message_fp (ct, fp_out, outfile);
 298         fclose(fp_out);
 299
 300         /* output the temp file to standard output */
 301         if ((fp = fopen (outfile, "r")) == NULL)
 302             adios (outfile, "unable to open");
 303         while (fgets (buffer, BUFSIZ, fp))
 304             fputs (buffer, stdout);
 305         fclose (fp);
 306
 307         unlink (infile);
 308         unlink_infile = 0;
 309
 310         unlink (outfile);
 311         unlink_outfile = 0;
 312
 313         free_content (ct);
 314         done (0);
 315     }
 316
 317     /*
 318      * Process the composition file from a file.
 319      */
 320
 321     /* build the content structures for MIME message */
 322     ct = build_mime (compfile, directives);
 323     cts[0] = ct;
 324     cts[1] = NULL;
 325
 326     /* output MIME message to this temporary file */
 327     strncpy(outfile, m_mktemp2(compfile, invo_name, NULL, &fp_out),
 328             sizeof(outfile));
 329     unlink_outfile = 1;
 330
 331     /* output the message */
 332     output_message_fp (ct, fp_out, outfile);
 333     fclose(fp_out);
 334
 335     /*
 336      * List the message info
 337      */
 338     if (listsw)
 339         list_all_messages (cts, headsw, sizesw, verbosw, debugsw);
 340
 341     /* Rename composition draft */
 342     snprintf (buffer, sizeof(buffer), "%s.orig", m_backup (compfile));
 343     if (rename (compfile, buffer) == NOTOK) {
 344         adios (compfile, "unable to rename comp draft %s to", buffer);
 345     }
 346
 347     /* Rename output file to take its place */
 348     if (rename (outfile, compfile) == NOTOK) {
 349         advise (outfile, "unable to rename output %s to", compfile);
 350         rename (buffer, compfile);
 351         done (1);
 352     }
 353     unlink_outfile = 0;
 354
 355     free_content (ct);
 356     done (0);
 357     return 1;
 358 }
 359
 360
 361 static void
 362 unlink_done (int status)
 363 {
 364     /*
 365      * Check if we need to remove stray
 366      * temporary files.
 367      */
 368     if (unlink_infile)
 369         unlink (infile);
 370     if (unlink_outfile)
 371         unlink (outfile);
 372
 373     exit (status);
 374 }