curl/lib/proxy.h
Stefan Eissing 73daec6620
lib: transfer origin and proxy handling
Add `data->state.origin` as the origin the transfer is sending the
current request to/gets the response from. Use it for request specific
properties like authentication, hsts and cookie handling, etc.

Unless talking to a forwarding HTTP proxy (e.g. not tunneling),
`data->state.origin` and `conn->origin` are the same.

With a forwarding HTTP proxy in play, `conn->origin` is set to
`conn->http_proxy.peer` and `conn->bits.origin_is_proxy` (a new bit) is
set.

Remove the connection bits, now replaced with:

* `conn->bits.socksproxy` -> `conn->socks_proy.peer`
* `conn->bits.httpproxy` -> `conn->http_proy.peer`
* `conn->bits.proxy` -> `(conn->socks_proy.peer || conn->http_proy.peer`)
* `conn->bits.tunnel_proxy` -> (`conn->http_proy.peer && !conn->bits.origin_is_proxy`)
* `(conn->bits.httpproxy && !conn->bits.tunnel_proxy)` -> `conn->bits.origin_is_proxy`

Rename `noproxy.[ch]` to `proxy.[ch]`. Move the connection proxy setup
code from `url.c` to `proxy.c`.

Remove `data->info.conn_remote_port` as no one uses it.

Add test_40_02b for a SOCKS connection to a forwarding HTTPS proxy.

Update internal documentation about peers and creds.

Closes #21967
2026-06-12 23:52:00 +02:00

59 lines
1.9 KiB
C

#ifndef HEADER_CURL_PROXY_H
#define HEADER_CURL_PROXY_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
* SPDX-License-Identifier: curl
*
***************************************************************************/
#include "curl_setup.h"
#ifndef CURL_DISABLE_PROXY
struct Curl_easy;
struct Curl_peer;
struct Curl_creds;
struct connectdata;
struct proxy_info {
struct Curl_peer *peer; /* proxy to this peer */
struct Curl_creds *creds; /* use these credentials, maybe NULL */
uint8_t proxytype; /* what kind of proxy that is in use */
};
#define CURL_PROXY_IS_HTTPS(t) \
(((t) == CURLPROXY_HTTPS) || \
((t) == CURLPROXY_HTTPS2) || \
((t) == CURLPROXY_HTTPS3))
#define CURL_PROXY_IS_HTTP(t) \
(((t) == CURLPROXY_HTTP) || \
((t) == CURLPROXY_HTTP_1_0))
#define CURL_PROXY_IS_ANY_HTTP(t) \
(CURL_PROXY_IS_HTTP(t) || \
CURL_PROXY_IS_HTTPS(t))
CURLcode Curl_proxy_init_conn(struct Curl_easy *data,
struct connectdata *conn);
#endif /* !CURL_DISABLE_PROXY */
#endif /* HEADER_CURL_PROXY_H */