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source: vbox/trunk/src/libs/curl-8.7.1/lib/http.h@ 104119

Last change on this file since 104119 was 104083, checked in by vboxsync, 11 months ago

curl-8.7.1: Applied and adjusted our curl changes to 8.4.0. bugref:10639
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File size: 10.8 KB
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1#ifndef HEADER_CURL_HTTP_H
2#define HEADER_CURL_HTTP_H
3/***************************************************************************
4 * _ _ ____ _
5 * Project ___| | | | _ \| |
6 * / __| | | | |_) | |
7 * | (__| |_| | _ <| |___
8 * \___|\___/|_| \_\_____|
9 *
10 * Copyright (C) Daniel Stenberg, <[email protected]>, 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 * SPDX-License-Identifier: curl
24 *
25 ***************************************************************************/
26#include "curl_setup.h"
27
28#if defined(USE_MSH3) && !defined(_WIN32)
29#include <pthread.h>
30#endif
31
32#include "bufq.h"
33#include "dynhds.h"
34#include "ws.h"
35
36typedef enum {
37 HTTPREQ_GET,
38 HTTPREQ_POST,
39 HTTPREQ_POST_FORM, /* we make a difference internally */
40 HTTPREQ_POST_MIME, /* we make a difference internally */
41 HTTPREQ_PUT,
42 HTTPREQ_HEAD
43} Curl_HttpReq;
44
45#ifndef CURL_DISABLE_HTTP
46
47#if defined(ENABLE_QUIC)
48#include <stdint.h>
49#endif
50
51extern const struct Curl_handler Curl_handler_http;
52
53#ifdef USE_SSL
54extern const struct Curl_handler Curl_handler_https;
55#endif
56
57struct dynhds;
58
59CURLcode Curl_bump_headersize(struct Curl_easy *data,
60 size_t delta,
61 bool connect_only);
62
63/* Header specific functions */
64bool Curl_compareheader(const char *headerline, /* line to check */
65 const char *header, /* header keyword _with_ colon */
66 const size_t hlen, /* len of the keyword in bytes */
67 const char *content, /* content string to find */
68 const size_t clen); /* len of the content in bytes */
69
70char *Curl_copy_header_value(const char *header);
71
72char *Curl_checkProxyheaders(struct Curl_easy *data,
73 const struct connectdata *conn,
74 const char *thisheader,
75 const size_t thislen);
76struct HTTP; /* see below */
77
78CURLcode Curl_add_timecondition(struct Curl_easy *data,
79#ifndef USE_HYPER
80 struct dynbuf *req
81#else
82 void *headers
83#endif
84 );
85CURLcode Curl_add_custom_headers(struct Curl_easy *data,
86 bool is_connect,
87#ifndef USE_HYPER
88 struct dynbuf *req
89#else
90 void *headers
91#endif
92 );
93CURLcode Curl_dynhds_add_custom(struct Curl_easy *data,
94 bool is_connect,
95 struct dynhds *hds);
96
97void Curl_http_method(struct Curl_easy *data, struct connectdata *conn,
98 const char **method, Curl_HttpReq *);
99CURLcode Curl_http_useragent(struct Curl_easy *data);
100CURLcode Curl_http_host(struct Curl_easy *data, struct connectdata *conn);
101CURLcode Curl_http_target(struct Curl_easy *data, struct connectdata *conn,
102 struct dynbuf *req);
103CURLcode Curl_http_statusline(struct Curl_easy *data,
104 struct connectdata *conn);
105CURLcode Curl_http_header(struct Curl_easy *data, struct connectdata *conn,
106 char *headp, size_t hdlen);
107CURLcode Curl_transferencode(struct Curl_easy *data);
108CURLcode Curl_http_req_set_reader(struct Curl_easy *data,
109 Curl_HttpReq httpreq,
110 const char **tep);
111CURLcode Curl_http_req_complete(struct Curl_easy *data,
112 struct dynbuf *r, Curl_HttpReq httpreq);
113bool Curl_use_http_1_1plus(const struct Curl_easy *data,
114 const struct connectdata *conn);
115#ifndef CURL_DISABLE_COOKIES
116CURLcode Curl_http_cookies(struct Curl_easy *data,
117 struct connectdata *conn,
118 struct dynbuf *r);
119#else
120#define Curl_http_cookies(a,b,c) CURLE_OK
121#endif
122CURLcode Curl_http_range(struct Curl_easy *data,
123 Curl_HttpReq httpreq);
124CURLcode Curl_http_firstwrite(struct Curl_easy *data);
125
126/* protocol-specific functions set up to be called by the main engine */
127CURLcode Curl_http_setup_conn(struct Curl_easy *data,
128 struct connectdata *conn);
129CURLcode Curl_http(struct Curl_easy *data, bool *done);
130CURLcode Curl_http_done(struct Curl_easy *data, CURLcode, bool premature);
131CURLcode Curl_http_connect(struct Curl_easy *data, bool *done);
132int Curl_http_getsock_do(struct Curl_easy *data, struct connectdata *conn,
133 curl_socket_t *socks);
134CURLcode Curl_http_write_resp(struct Curl_easy *data,
135 const char *buf, size_t blen,
136 bool is_eos);
137
138/* These functions are in http.c */
139CURLcode Curl_http_input_auth(struct Curl_easy *data, bool proxy,
140 const char *auth);
141CURLcode Curl_http_auth_act(struct Curl_easy *data);
142
143/* If only the PICKNONE bit is set, there has been a round-trip and we
144 selected to use no auth at all. Ie, we actively select no auth, as opposed
145 to not having one selected. The other CURLAUTH_* defines are present in the
146 public curl/curl.h header. */
147#define CURLAUTH_PICKNONE (1<<30) /* don't use auth */
148
149/* MAX_INITIAL_POST_SIZE indicates the number of bytes that will make the POST
150 data get included in the initial data chunk sent to the server. If the
151 data is larger than this, it will automatically get split up in multiple
152 system calls.
153
154 This value used to be fairly big (100K), but we must take into account that
155 if the server rejects the POST due for authentication reasons, this data
156 will always be unconditionally sent and thus it may not be larger than can
157 always be afforded to send twice.
158
159 It must not be greater than 64K to work on VMS.
160*/
161#ifndef MAX_INITIAL_POST_SIZE
162#define MAX_INITIAL_POST_SIZE (64*1024)
163#endif
164
165/* EXPECT_100_THRESHOLD is the request body size limit for when libcurl will
166 * automatically add an "Expect: 100-continue" header in HTTP requests. When
167 * the size is unknown, it will always add it.
168 *
169 */
170#ifndef EXPECT_100_THRESHOLD
171#define EXPECT_100_THRESHOLD (1024*1024)
172#endif
173
174/* MAX_HTTP_RESP_HEADER_SIZE is the maximum size of all response headers
175 combined that libcurl allows for a single HTTP response, any HTTP
176 version. This count includes CONNECT response headers. */
177#define MAX_HTTP_RESP_HEADER_SIZE (300*1024)
178
179bool Curl_http_exp100_is_selected(struct Curl_easy *data);
180void Curl_http_exp100_got100(struct Curl_easy *data);
181
182#endif /* CURL_DISABLE_HTTP */
183
184/****************************************************************************
185 * HTTP unique setup
186 ***************************************************************************/
187struct HTTP {
188#ifndef CURL_DISABLE_HTTP
189 void *h2_ctx; /* HTTP/2 implementation context */
190 void *h3_ctx; /* HTTP/3 implementation context */
191#else
192 char unused;
193#endif
194};
195
196CURLcode Curl_http_size(struct Curl_easy *data);
197
198CURLcode Curl_http_write_resp_hds(struct Curl_easy *data,
199 const char *buf, size_t blen,
200 size_t *pconsumed);
201
202/**
203 * Curl_http_output_auth() setups the authentication headers for the
204 * host/proxy and the correct authentication
205 * method. data->state.authdone is set to TRUE when authentication is
206 * done.
207 *
208 * @param data all information about the current transfer
209 * @param conn all information about the current connection
210 * @param request pointer to the request keyword
211 * @param httpreq is the request type
212 * @param path pointer to the requested path
213 * @param proxytunnel boolean if this is the request setting up a "proxy
214 * tunnel"
215 *
216 * @returns CURLcode
217 */
218CURLcode
219Curl_http_output_auth(struct Curl_easy *data,
220 struct connectdata *conn,
221 const char *request,
222 Curl_HttpReq httpreq,
223 const char *path,
224 bool proxytunnel); /* TRUE if this is the request setting
225 up the proxy tunnel */
226
227/* Decode HTTP status code string. */
228CURLcode Curl_http_decode_status(int *pstatus, const char *s, size_t len);
229
230
231/**
232 * All about a core HTTP request, excluding body and trailers
233 */
234struct httpreq {
235 char method[24];
236 char *scheme;
237 char *authority;
238 char *path;
239 struct dynhds headers;
240 struct dynhds trailers;
241};
242
243/**
244 * Create a HTTP request struct.
245 */
246CURLcode Curl_http_req_make(struct httpreq **preq,
247 const char *method, size_t m_len,
248 const char *scheme, size_t s_len,
249 const char *authority, size_t a_len,
250 const char *path, size_t p_len);
251
252CURLcode Curl_http_req_make2(struct httpreq **preq,
253 const char *method, size_t m_len,
254 CURLU *url, const char *scheme_default);
255
256void Curl_http_req_free(struct httpreq *req);
257
258#define HTTP_PSEUDO_METHOD ":method"
259#define HTTP_PSEUDO_SCHEME ":scheme"
260#define HTTP_PSEUDO_AUTHORITY ":authority"
261#define HTTP_PSEUDO_PATH ":path"
262#define HTTP_PSEUDO_STATUS ":status"
263
264/**
265 * Create the list of HTTP/2 headers which represent the request,
266 * using HTTP/2 pseudo headers preceding the `req->headers`.
267 *
268 * Applies the following transformations:
269 * - if `authority` is set, any "Host" header is removed.
270 * - if `authority` is unset and a "Host" header is present, use
271 * that as `authority` and remove "Host"
272 * - removes and Connection header fields as defined in rfc9113 ch. 8.2.2
273 * - lower-cases the header field names
274 *
275 * @param h2_headers will contain the HTTP/2 headers on success
276 * @param req the request to transform
277 * @param data the handle to lookup defaults like ' :scheme' from
278 */
279CURLcode Curl_http_req_to_h2(struct dynhds *h2_headers,
280 struct httpreq *req, struct Curl_easy *data);
281
282/**
283 * All about a core HTTP response, excluding body and trailers
284 */
285struct http_resp {
286 int status;
287 char *description;
288 struct dynhds headers;
289 struct dynhds trailers;
290 struct http_resp *prev;
291};
292
293/**
294 * Create a HTTP response struct.
295 */
296CURLcode Curl_http_resp_make(struct http_resp **presp,
297 int status,
298 const char *description);
299
300void Curl_http_resp_free(struct http_resp *resp);
301
302#endif /* HEADER_CURL_HTTP_H */
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