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