curl/lib/url.h

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#ifndef HEADER_CURL_URL_H
#define HEADER_CURL_URL_H
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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
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* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2016, 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
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
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* 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
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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
* KIND, either express or implied.
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*
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***************************************************************************/
build: fix circular header inclusion with other packages This commit renames lib/setup.h to lib/curl_setup.h and renames lib/setup_once.h to lib/curl_setup_once.h. Removes the need and usage of a header inclusion guard foreign to libcurl. [1] Removes the need and presence of an alarming notice we carried in old setup_once.h [2] ---------------------------------------- 1 - lib/setup_once.h used __SETUP_ONCE_H macro as header inclusion guard up to commit ec691ca3 which changed this to HEADER_CURL_SETUP_ONCE_H, this single inclusion guard is enough to ensure that inclusion of lib/setup_once.h done from lib/setup.h is only done once. Additionally lib/setup.h has always used __SETUP_ONCE_H macro to protect inclusion of setup_once.h even after commit ec691ca3, this was to avoid a circular header inclusion triggered when building a c-ares enabled version with c-ares sources available which also has a setup_once.h header. Commit ec691ca3 exposes the real nature of __SETUP_ONCE_H usage in lib/setup.h, it is a header inclusion guard foreign to libcurl belonging to c-ares's setup_once.h The renaming this commit does, fixes the circular header inclusion, and as such removes the need and usage of a header inclusion guard foreign to libcurl. Macro __SETUP_ONCE_H no longer used in libcurl. 2 - Due to the circular interdependency of old lib/setup_once.h and the c-ares setup_once.h header, old file lib/setup_once.h has carried back from 2006 up to now days an alarming and prominent notice about the need of keeping libcurl's and c-ares's setup_once.h in sync. Given that this commit fixes the circular interdependency, the need and presence of mentioned notice is removed. All mentioned interdependencies come back from now old days when the c-ares project lived inside a curl subdirectory. This commit removes last traces of such fact.
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#include "curl_setup.h"
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/*
* Prototypes for library-wide functions provided by url.c
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*/
CURLcode Curl_init_do(struct Curl_easy *data, struct connectdata *conn);
CURLcode Curl_open(struct Curl_easy **curl);
CURLcode Curl_init_userdefined(struct UserDefined *set);
CURLcode Curl_setopt(struct Curl_easy *data, CURLoption option,
va_list arg);
CURLcode Curl_dupset(struct Curl_easy * dst, struct Curl_easy * src);
void Curl_freeset(struct Curl_easy * data);
CURLcode Curl_close(struct Curl_easy *data); /* opposite of curl_open() */
CURLcode Curl_connect(struct Curl_easy *, struct connectdata **,
bool *async, bool *protocol_connect);
CURLcode Curl_disconnect(struct connectdata *, bool dead_connection);
CURLcode Curl_protocol_connect(struct connectdata *conn, bool *done);
CURLcode Curl_protocol_connecting(struct connectdata *conn, bool *done);
CURLcode Curl_protocol_doing(struct connectdata *conn, bool *done);
CURLcode Curl_setup_conn(struct connectdata *conn,
bool *protocol_done);
void Curl_free_request_state(struct Curl_easy *data);
int Curl_protocol_getsock(struct connectdata *conn,
curl_socket_t *socks,
int numsocks);
int Curl_doing_getsock(struct connectdata *conn,
curl_socket_t *socks,
int numsocks);
bool Curl_isPipeliningEnabled(const struct Curl_easy *handle);
CURLcode Curl_addHandleToPipeline(struct Curl_easy *handle,
struct curl_llist *pipeline);
int Curl_removeHandleFromPipeline(struct Curl_easy *handle,
struct curl_llist *pipeline);
struct connectdata *
Curl_oldest_idle_connection(struct Curl_easy *data);
/* remove the specified connection from all (possible) pipelines and related
queues */
void Curl_getoff_all_pipelines(struct Curl_easy *data,
struct connectdata *conn);
void Curl_close_connections(struct Curl_easy *data);
#define CURL_DEFAULT_PROXY_PORT 1080 /* default proxy port unless specified */
#define CURL_DEFAULT_HTTPS_PROXY_PORT 443 /* default https proxy port unless
specified */
CURLcode Curl_connected_proxy(struct connectdata *conn, int sockindex);
#ifdef CURL_DISABLE_VERBOSE_STRINGS
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#define Curl_verboseconnect(x) Curl_nop_stmt
#else
void Curl_verboseconnect(struct connectdata *conn);
#endif
proxy: Support HTTPS proxy and SOCKS+HTTP(s) * 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. A secure connection with a proxy requires its own set of the usual SSL options (their actual descriptions differ and need polishing, see TODO): --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 file --proxy-insecure Allow connections to proxies with bad 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 which defaults to --crlfile and --proxy-capath which defaults to --capath. Curl now also supports %{proxy_ssl_verify_result} --write-out variable, similar to the existing %{ssl_verify_result} variable. Supported backends: OpenSSL, GnuTLS, and NSS. * A 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. TODO: Update documentation for the new APIs and --proxy-* options. Look for "Added in 7.XXX" marks.
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#define CONNECT_PROXY_SSL()\
(conn->http_proxy.proxytype == CURLPROXY_HTTPS &&\
!conn->bits.proxy_ssl_connected[sockindex])
#define CONNECT_FIRSTSOCKET_PROXY_SSL()\
(conn->http_proxy.proxytype == CURLPROXY_HTTPS &&\
!conn->bits.proxy_ssl_connected[FIRSTSOCKET])
#define CONNECT_SECONDARYSOCKET_PROXY_SSL()\
(conn->http_proxy.proxytype == CURLPROXY_HTTPS &&\
!conn->bits.proxy_ssl_connected[SECONDARYSOCKET])
#endif /* HEADER_CURL_URL_H */