1 #ifndef HEADER_CURL_HTTP_H
2 #define HEADER_CURL_HTTP_H
3 /***************************************************************************
5 * Project ___| | | | _ \| |
7 * | (__| |_| | _ <| |___
8 * \___|\___/|_| \_\_____|
10 * Copyright (C) 1998 - 2014, Daniel Stenberg, <daniel@haxx.se>, et al.
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 http://curl.haxx.se/docs/copyright.html.
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.
20 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
21 * KIND, either express or implied.
23 ***************************************************************************/
24 #include "curl_setup.h"
26 #ifndef CURL_DISABLE_HTTP
29 #include <nghttp2/nghttp2.h>
32 extern const struct Curl_handler Curl_handler_http;
35 extern const struct Curl_handler Curl_handler_https;
38 /* Header specific functions */
39 bool Curl_compareheader(const char *headerline, /* line to check */
40 const char *header, /* header keyword _with_ colon */
41 const char *content); /* content string to find */
43 char *Curl_checkheaders(const struct connectdata *conn,
44 const char *thisheader);
45 char *Curl_copy_header_value(const char *header);
47 char *Curl_checkProxyheaders(const struct connectdata *conn,
48 const char *thisheader);
49 /* ------------------------------------------------------------------------- */
51 * The add_buffer series of functions are used to build one large memory chunk
52 * from repeated function invokes. Used so that the entire HTTP request can
55 struct Curl_send_buffer {
60 typedef struct Curl_send_buffer Curl_send_buffer;
62 Curl_send_buffer *Curl_add_buffer_init(void);
63 CURLcode Curl_add_bufferf(Curl_send_buffer *in, const char *fmt, ...);
64 CURLcode Curl_add_buffer(Curl_send_buffer *in, const void *inptr, size_t size);
65 CURLcode Curl_add_buffer_send(Curl_send_buffer *in,
66 struct connectdata *conn,
68 size_t included_body_bytes,
71 CURLcode Curl_add_timecondition(struct SessionHandle *data,
72 Curl_send_buffer *buf);
73 CURLcode Curl_add_custom_headers(struct connectdata *conn,
75 Curl_send_buffer *req_buffer);
77 /* protocol-specific functions set up to be called by the main engine */
78 CURLcode Curl_http(struct connectdata *conn, bool *done);
79 CURLcode Curl_http_done(struct connectdata *, CURLcode, bool premature);
80 CURLcode Curl_http_connect(struct connectdata *conn, bool *done);
81 CURLcode Curl_http_setup_conn(struct connectdata *conn);
83 /* The following functions are defined in http_chunks.c */
84 void Curl_httpchunk_init(struct connectdata *conn);
85 CHUNKcode Curl_httpchunk_read(struct connectdata *conn, char *datap,
86 ssize_t length, ssize_t *wrote);
88 /* These functions are in http.c */
89 void Curl_http_auth_stage(struct SessionHandle *data, int stage);
90 CURLcode Curl_http_input_auth(struct connectdata *conn, bool proxy,
92 CURLcode Curl_http_auth_act(struct connectdata *conn);
93 CURLcode Curl_http_perhapsrewind(struct connectdata *conn);
95 /* If only the PICKNONE bit is set, there has been a round-trip and we
96 selected to use no auth at all. Ie, we actively select no auth, as opposed
97 to not having one selected. The other CURLAUTH_* defines are present in the
98 public curl/curl.h header. */
99 #define CURLAUTH_PICKNONE (1<<30) /* don't use auth */
101 /* MAX_INITIAL_POST_SIZE indicates the number of bytes that will make the POST
102 data get included in the initial data chunk sent to the server. If the
103 data is larger than this, it will automatically get split up in multiple
106 This value used to be fairly big (100K), but we must take into account that
107 if the server rejects the POST due for authentication reasons, this data
108 will always be uncondtionally sent and thus it may not be larger than can
109 always be afforded to send twice.
111 It must not be greater than 64K to work on VMS.
113 #ifndef MAX_INITIAL_POST_SIZE
114 #define MAX_INITIAL_POST_SIZE (64*1024)
117 #ifndef TINY_INITIAL_POST_SIZE
118 #define TINY_INITIAL_POST_SIZE 1024
121 #endif /* CURL_DISABLE_HTTP */
123 /****************************************************************************
125 ***************************************************************************/
127 struct FormData *sendit;
128 curl_off_t postsize; /* off_t to handle large file sizes */
129 const char *postdata;
131 const char *p_pragma; /* Pragma: string */
132 const char *p_accept; /* Accept: string */
133 curl_off_t readbytecount;
134 curl_off_t writebytecount;
136 /* For FORM posting */
140 curl_read_callback fread_func; /* backup storage for fread pointer */
141 void *fread_in; /* backup storage for fread_in pointer */
142 const char *postdata;
147 HTTPSEND_NADA, /* init */
148 HTTPSEND_REQUEST, /* sending a request */
149 HTTPSEND_BODY, /* sending body */
150 HTTPSEND_LAST /* never use this */
153 void *send_buffer; /* used if the request couldn't be sent in one chunk,
154 points to an allocated send_buffer struct */
157 typedef int (*sending)(void); /* Curl_send */
158 typedef int (*recving)(void); /* Curl_recv */
162 #define H2_BINSETTINGS_LEN 80
164 uint8_t binsettings[H2_BINSETTINGS_LEN];
165 size_t binlen; /* length of the binsettings data */
166 char *mem; /* points to a buffer in memory to store */
167 size_t len; /* size of the buffer 'mem' points to */
169 sending send_underlying; /* underlying send Curl_send callback */
170 recving recv_underlying; /* underlying recv Curl_recv callback */
171 bool closed; /* TRUE on HTTP2 stream close */
172 Curl_send_buffer *header_recvbuf; /* store response headers */
173 size_t nread_header_recvbuf; /* number of bytes in header_recvbuf
174 fed into upper layer */
175 int32_t stream_id; /* stream we are interested in */
176 const uint8_t *data; /* pointer to data chunk, received in
178 size_t datalen; /* the number of bytes left in data */
179 char *inbuf; /* buffer to receive data from underlying socket */
180 /* We need separate buffer for transmission and reception because we
181 may call nghttp2_session_send() after the
182 nghttp2_session_mem_recv() but mem buffer is still not full. In
183 this case, we wrongly sends the content of mem buffer if we share
184 them for both cases. */
185 const uint8_t *upload_mem; /* points to a buffer to read from */
186 size_t upload_len; /* size of the buffer 'upload_mem' points to */
187 size_t upload_left; /* number of bytes left to upload */
189 int unused; /* prevent a compiler warning */
193 CURLcode Curl_http_readwrite_headers(struct SessionHandle *data,
194 struct connectdata *conn,
199 * Curl_http_output_auth() setups the authentication headers for the
200 * host/proxy and the correct authentication
201 * method. conn->data->state.authdone is set to TRUE when authentication is
204 * @param conn all information about the current connection
205 * @param request pointer to the request keyword
206 * @param path pointer to the requested path
207 * @param proxytunnel boolean if this is the request setting up a "proxy
213 Curl_http_output_auth(struct connectdata *conn,
216 bool proxytunnel); /* TRUE if this is the request setting
217 up the proxy tunnel */
219 #endif /* HEADER_CURL_HTTP_H */