#include "httpd.h"
#include "http_config.h"
#include "http_core.h"
#include "http_log.h"
#include "http_protocol.h"
#include "http_vhost.h"
#include "apr_strings.h"

module AP_MODULE_DECLARE_DATA ignore_authcomponent_module;

typedef struct {
    int enable;
} ignore_authcomponent_server_cfg;


void *ignore_authcomponent_create_dir_cfg (apr_pool_t *p, char *dummy) {
  ignore_authcomponent_server_cfg *cfg = (ignore_authcomponent_server_cfg *)apr_pcalloc (p, sizeof(ignore_authcomponent_server_cfg));
  
  if (!cfg)
    return NULL;
  
  cfg->enable = 0;
  
  return (void *)cfg;
}


static const char *ignore_authcomponent_enable (cmd_parms *cmd, void *config, int flag) {
  server_rec *s = cmd->server;
  ignore_authcomponent_server_cfg *cfg = (ignore_authcomponent_server_cfg *)config;
  
  if (!cfg)
    return NULL;
  
  cfg->enable = flag;
  
  return NULL;
}

static int ignore_authcomponent (request_rec *r) {
  ignore_authcomponent_server_cfg *cfg = (ignore_authcomponent_server_cfg *)ap_get_module_config (r->per_dir_config, &ignore_authcomponent_module);
  
  if (!cfg)
    return DECLINED;
  
  if (!cfg->enable)
    return DECLINED;
  
  if (!r->parsed_uri.hostinfo)
    return DECLINED;
  
  char *org_path = r->parsed_uri.path;
  
  r->parsed_uri.path = apr_psprintf (r->connection->pool, "/%s%s", r->parsed_uri.hostinfo, r->parsed_uri.path);
  
  if (r->uri == org_path)
    r->uri = r->parsed_uri.path;
  
  return DECLINED;
}

static const command_rec ignore_authcomponent_cmds[] = {
  AP_INIT_FLAG (
    "IgnoreAuthComponent",
   ignore_authcomponent_enable,
    NULL,
    RSRC_CONF,
    "Ignore URI Authoritiy Component as defined in RFC 2396, 3.2"
  ),
  { NULL }
};

static void register_hooks(apr_pool_t *p) {
    ap_hook_post_read_request (ignore_authcomponent, NULL, NULL, APR_HOOK_FIRST);
}

module AP_MODULE_DECLARE_DATA ignore_authcomponent_module = {
    STANDARD20_MODULE_STUFF,
    ignore_authcomponent_create_dir_cfg,
    NULL,
    NULL,
    NULL,
    ignore_authcomponent_cmds,
    register_hooks,
};