tinyproxy/src/conns.h
rofl0r f6d4da5d81 do hostname resolution only when it is absolutely necessary for ACL check
tinyproxy used to do a full hostname resolution whenever a new client
connection happened, which could cause very long delays (as reported in #198).

there's only a single place/scenario that actually requires a hostname, and
that is when an Allow/Deny rule exists for a hostname or domain, rather than
a raw IP address. since it is very likely this feature is not very widely used,
it makes absolute sense to only do the costly resolution when it is unavoidable.
2019-12-21 00:43:45 +00:00

98 lines
2.6 KiB
C

/* tinyproxy - A fast light-weight HTTP proxy
* Copyright (C) 2001 Robert James Kaes <rjkaes@users.sourceforge.net>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
/* See 'conns.c' for detailed information. */
#ifndef TINYPROXY_CONNS_H
#define TINYPROXY_CONNS_H
#include "main.h"
#include "hashmap.h"
/*
* Connection Definition
*/
struct conn_s {
int client_fd;
int server_fd;
struct buffer_s *cbuffer;
struct buffer_s *sbuffer;
/* The request line (first line) from the client */
char *request_line;
/* Booleans */
unsigned int connect_method;
unsigned int show_stats;
/*
* This structure stores key -> value mappings for substitution
* in the error HTML files.
*/
hashmap_t error_variables;
int error_number;
char *error_string;
/* A Content-Length value from the remote server */
struct {
long int server;
long int client;
} content_length;
/*
* Store the server's IP (for BindSame)
*/
char *server_ip_addr;
/*
* Store the client's IP information
*/
char *client_ip_addr;
/*
* Store the incoming request's HTTP protocol.
*/
struct {
unsigned int major;
unsigned int minor;
} protocol;
#ifdef REVERSE_SUPPORT
/*
* Place to store the current per-connection reverse proxy path
*/
char *reversepath;
#endif
/*
* Pointer to upstream proxy.
*/
struct upstream *upstream_proxy;
};
/*
* Functions for the creation and destruction of a connection structure.
*/
extern struct conn_s *initialize_conn (int client_fd, const char *ipaddr,
const char *sock_ipaddr);
extern void destroy_conn (struct conn_s *connptr);
#endif