3d90ec5448
HTTPS proxies:
An HTTPS proxy receives all transactions over an SSL/TLS connection. Once a
secure connection with the proxy is established, the user agent uses the proxy
as usual, including sending CONNECT requests to instruct the proxy to establish
a [usually secure] TCP tunnel with an origin server. HTTPS proxies protect
nearly all aspects of user-proxy communications as opposed to HTTP proxies that
receive all requests (including CONNECT requests) in vulnerable clear text.
With HTTPS proxies, it is possible to have two concurrent _nested_ SSL/TLS
sessions: the "outer" one between the user agent and the proxy and the "inner"
one between the user agent and the origin server (through the proxy). This
change adds supports for such nested sessions as well.
The secure connection with the proxy requires its own set of the usual
SSL/TLS-related options (their descriptions need polishing):
--proxy-cacert FILE CA certificate to verify peer against
--proxy-capath DIR CA directory to verify peer against
--proxy-cert CERT[:PASSWD] Client certificate file and password
--proxy-cert-type TYPE Certificate file type (DER/PEM/ENG)
--proxy-ciphers LIST SSL ciphers to use
--proxy-crlfile FILE Get a CRL list in PEM format from the given file
--proxy-insecure Allow connections to SSL sites without certs
--proxy-key KEY Private key file name
--proxy-key-type TYPE Private key file type (DER/PEM/ENG)
--proxy-pass PASS Pass phrase for the private key
--proxy-ssl-allow-beast Allow security flaw to improve interop
--proxy-sslv2 Use SSLv2
--proxy-sslv3 Use SSLv3
--proxy-tlsv1 Use TLSv1
--proxy-tlsuser USER TLS username
--proxy-tlspassword STRING TLS password
--proxy-tlsauthtype STRING TLS authentication type (default SRP)
All --proxy-foo options are independent from their --foo counterparts, except
--proxy-crlfile defaults to --crlfile and --proxy-capath defaults to --capath.
Curl now also supports %{proxy_ssl_verify_result} --write-out variable,
similar to the existing %{ssl_verify_result} variable.
SOCKS proxy + HTTP/HTTPS proxy combination:
If both --socks* and --proxy options are given, Curl first connects to the
SOCKS proxy and then connects (through SOCKS) to the HTTP or HTTPS proxy.
77 lines
2.7 KiB
C
77 lines
2.7 KiB
C
#ifndef HEADER_CURL_SOCKS_H
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#define HEADER_CURL_SOCKS_H
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/***************************************************************************
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* _ _ ____ _
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* Project ___| | | | _ \| |
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* / __| | | | |_) | |
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* | (__| |_| | _ <| |___
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* \___|\___/|_| \_\_____|
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*
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* Copyright (C) 1998 - 2011, Daniel Stenberg, <daniel@haxx.se>, et al.
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*
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* This software is licensed as described in the file COPYING, which
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* you should have received as part of this distribution. The terms
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* are also available at http://curl.haxx.se/docs/copyright.html.
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*
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* You may opt to use, copy, modify, merge, publish, distribute and/or sell
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* copies of the Software, and permit persons to whom the Software is
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* furnished to do so, under the terms of the COPYING file.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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***************************************************************************/
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#include "curl_setup.h"
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#ifdef CURL_DISABLE_PROXY
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#define Curl_SOCKS4(a,b,c,d,e) CURLE_NOT_BUILT_IN
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#define Curl_SOCKS5(a,b,c,d,e,f) CURLE_NOT_BUILT_IN
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#else
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/*
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* Helper read-from-socket functions. Does the same as Curl_read() but it
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* blocks until all bytes amount of buffersize will be read. No more, no less.
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*
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* This is STUPID BLOCKING behaviour which we frown upon, but right now this
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* is what we have...
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*/
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int Curl_blockread_all(struct connectdata *conn,
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curl_socket_t sockfd,
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char *buf,
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ssize_t buffersize,
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ssize_t *n);
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/*
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* This function logs in to a SOCKS4(a) proxy and sends the specifics to the
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* final destination server.
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*/
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CURLcode Curl_SOCKS4(const char *proxy_name,
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const char *hostname,
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int remote_port,
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int sockindex,
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struct connectdata *conn);
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/*
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* This function logs in to a SOCKS5 proxy and sends the specifics to the
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* final destination server.
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*/
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CURLcode Curl_SOCKS5(const char *proxy_name,
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const char *proxy_password,
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const char *hostname,
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int remote_port,
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int sockindex,
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struct connectdata *conn);
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#if defined(HAVE_GSSAPI) || defined(USE_WINDOWS_SSPI)
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/*
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* This function handles the SOCKS5 GSS-API negotiation and initialisation
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*/
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CURLcode Curl_SOCKS5_gssapi_negotiate(int sockindex,
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struct connectdata *conn);
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#endif
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#endif /* CURL_DISABLE_PROXY */
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#endif /* HEADER_CURL_SOCKS_H */
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