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/* 
 * PATH_INFO support for Roxen. 
 * 
 * Henrik Grubbström 1998-10-01 
 */ 
 
#include <module.h> 
#include <stat.h> 
 
inherit "module"; 
 
constant cvs_version = "$Id: pathinfo.pike,v 1.8 1999/12/28 03:46:41 nilsson Exp $"; 
constant thread_safe = 1; 
 
// #define PATHINFO_DEBUG 
 
#ifdef PATHINFO_DEBUG 
# define PATHINFO_WERR(X) werror("PATHINFO: "+X+"\n"); 
#else 
# define PATHINFO_WERR(X) 
#endif 
 
array register_module() 
{ 
  return ({ MODULE_LAST, "PATH_INFO support", 
            "Support for PATH_INFO style URLs.", 
            0, 1 }); 
} 
 
mapping|int last_resort(object id) 
{ 
  PATHINFO_WERR(sprintf("Checking %O...", id->not_query)); 
  if (id->misc->path_info) { 
    // Already been here... 
    PATHINFO_WERR(sprintf("Been here, done that.")); 
    return 0; 
  } 
 
  string query = id->not_query; 
  string pi = ""; 
  while( (search( query[1..], "/" ) != -1) && strlen( query ) > 0 ) 
  { 
    query = reverse(query); 
    string add_path_info; 
    sscanf( query, "%[^/]/%s", add_path_info, query ); 
    query = reverse( query ); 
    if( strlen( pi ) ) 
      pi = "/"+reverse( add_path_info )+pi; 
    else 
      pi = "/"+add_path_info; 
    id->misc->path_info = pi; 
    PATHINFO_WERR(sprintf("Trying: %O (%O)", query, pi)); 
    array st = id->conf->stat_file( query, id ); 
    if( st && (st[ ST_SIZE ] > 0)) 
    { 
      id->not_query = query; 
      PATHINFO_WERR(sprintf("Found: %O:%O", 
                            id->not_query, id->misc->path_info)); 
      return 1; 
    } 
  } 
  return 0; 
}