1 #ifndef HEADER_CURL_HTTP_PROXY_H
2 #define HEADER_CURL_HTTP_PROXY_H
3 /***************************************************************************
4  *                                  _   _ ____  _
5  *  Project                     ___| | | |  _ \| |
6  *                             / __| | | | |_) | |
7  *                            | (__| |_| |  _ <| |___
8  *                             \___|\___/|_| \_\_____|
9  *
10  * Copyright (C) 1998 - 2021, Daniel Stenberg, <daniel@haxx.se>, et al.
11  *
12  * This software is licensed as described in the file COPYING, which
13  * you should have received as part of this distribution. The terms
14  * are also available at https://curl.se/docs/copyright.html.
15  *
16  * You may opt to use, copy, modify, merge, publish, distribute and/or sell
17  * copies of the Software, and permit persons to whom the Software is
18  * furnished to do so, under the terms of the COPYING file.
19  *
20  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
21  * KIND, either express or implied.
22  *
23  ***************************************************************************/
24 
25 #include "curl_setup.h"
26 #include "urldata.h"
27 
28 #if !defined(CURL_DISABLE_PROXY) && !defined(CURL_DISABLE_HTTP)
29 /* ftp can use this as well */
30 CURLcode Curl_proxyCONNECT(struct Curl_easy *data,
31                            int tunnelsocket,
32                            const char *hostname, int remote_port);
33 
34 /* Default proxy timeout in milliseconds */
35 #define PROXY_TIMEOUT (3600*1000)
36 
37 CURLcode Curl_proxy_connect(struct Curl_easy *data, int sockindex);
38 
39 bool Curl_connect_complete(struct connectdata *conn);
40 bool Curl_connect_ongoing(struct connectdata *conn);
41 int Curl_connect_getsock(struct connectdata *conn);
42 
43 #else
44 #define Curl_proxyCONNECT(x,y,z,w) CURLE_NOT_BUILT_IN
45 #define Curl_proxy_connect(x,y) CURLE_OK
46 #define Curl_connect_complete(x) CURLE_OK
47 #define Curl_connect_ongoing(x) FALSE
48 #define Curl_connect_getsock(x) 0
49 #endif
50 
51 void Curl_connect_free(struct Curl_easy *data);
52 void Curl_connect_done(struct Curl_easy *data);
53 
54 /* struct for HTTP CONNECT state data */
55 struct http_connect_state {
56   struct HTTP http_proxy;
57   struct HTTP *prot_save;
58   struct dynbuf rcvbuf;
59   struct dynbuf req;
60   size_t nsend;
61   enum keeponval {
62     KEEPON_DONE,
63     KEEPON_CONNECT,
64     KEEPON_IGNORE
65   } keepon;
66   curl_off_t cl; /* size of content to read and ignore */
67   enum {
68     TUNNEL_INIT,     /* init/default/no tunnel state */
69     TUNNEL_CONNECT,  /* CONNECT has been sent off */
70     TUNNEL_COMPLETE, /* CONNECT response received completely */
71     TUNNEL_EXIT
72   } tunnel_state;
73   BIT(chunked_encoding);
74   BIT(close_connection);
75 };
76 
77 #endif /* HEADER_CURL_HTTP_PROXY_H */
78