canonize.c

   1 #include <stdio.h>
   2 #include <string.h>
   3 #include <sys/time.h>
   4 #include <sys/stat.h>
   5 #include <fuse.h>
   6 #include "grow.h"
   7 #include "parser.h"
   8 #include "cache.h"
   9 #include "canonize.h"
  10 #include "urlencode.h"
  11
  12 /*
  13  * url canonization process
  14  */
  15
  16 /* terrible code, FIXME
  17  *
  18  * few ideas for making ordinary web pages more-or-less browsable
  19  *
  20  * 1) if occurs dir1/dir2/page as url in current pake, mark dir1 as directory
  21  * 2) if occurs /dir1/dir2/dir3/page as url, and we are in /dir1/dir2/dir3 add page
  22  * 3) what about symlinks to different part of the site?
  23  */
  24
  25
  26 char *prefixes[] = { "http://", "ftp://", "https://", "mailto:", "/", NULL };
  27
  28
  29 static inline int bad_prefix(char *s)
  30 {
  31         int i;
  32         for (i=0; prefixes[i]; i++) {
  33                 if (!strncasecmp(prefixes[i], s, strlen(prefixes[i])))
  34                         return 1;
  35         }
  36         return 0;
  37 }
  38
  39
  40 void canonize(void *ctx, char *par, time_t time, size_t size)
  41 {
  42         struct canon *c = ctx;
  43         struct stat stb;
  44         struct grow g;
  45
  46         memset(&stb, 0, sizeof(stb));
  47
  48         if (bad_prefix(par))
  49                 return;
  50
  51         if (par[strlen(par)-1] == '/') {
  52                 stb.st_mode = S_IFDIR | 0555;
  53                 par[strlen(par)-1] = 0;
  54         } else {
  55                 stb.st_mode = S_IFREG | 0444;
  56         }
  57
  58         if (strchr(par, '/') || strchr(par, '#') || par[0] == '?')
  59                 return;
  60         if (par[0] == 0)
  61                 return;
  62
  63         grow_init(&g);
  64         path_decode(&g, par);
  65         grow_put(&g, 0);
  66         c->filler(c->h, g.s, &stb);
  67         grow_free(&g);
  68 }