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 */
42 char *Curl_checkheaders(struct SessionHandle *data, const char *thisheader);
43 char *Curl_copy_header_value(const char *header);
45 /* ------------------------------------------------------------------------- */
47 * The add_buffer series of functions are used to build one large memory chunk
48 * from repeated function invokes. Used so that the entire HTTP request can
51 struct Curl_send_buffer {
56 typedef struct Curl_send_buffer Curl_send_buffer;
58 Curl_send_buffer *Curl_add_buffer_init(void);
59 CURLcode Curl_add_bufferf(Curl_send_buffer *in, const char *fmt, ...);
60 CURLcode Curl_add_buffer(Curl_send_buffer *in, const void *inptr, size_t size);
61 CURLcode Curl_add_buffer_send(Curl_send_buffer *in,
62 struct connectdata *conn,
64 size_t included_body_bytes,
67 CURLcode Curl_add_timecondition(struct SessionHandle *data,
68 Curl_send_buffer *buf);
69 CURLcode Curl_add_custom_headers(struct connectdata *conn,
70 Curl_send_buffer *req_buffer);
72 /* protocol-specific functions set up to be called by the main engine */
73 CURLcode Curl_http(struct connectdata *conn, bool *done);
74 CURLcode Curl_http_done(struct connectdata *, CURLcode, bool premature);
75 CURLcode Curl_http_connect(struct connectdata *conn, bool *done);
76 CURLcode Curl_http_setup_conn(struct connectdata *conn);
78 /* The following functions are defined in http_chunks.c */
79 void Curl_httpchunk_init(struct connectdata *conn);
80 CHUNKcode Curl_httpchunk_read(struct connectdata *conn, char *datap,
81 ssize_t length, ssize_t *wrote);
83 /* These functions are in http.c */
84 void Curl_http_auth_stage(struct SessionHandle *data, int stage);
85 CURLcode Curl_http_input_auth(struct connectdata *conn, bool proxy,
87 CURLcode Curl_http_auth_act(struct connectdata *conn);
88 CURLcode Curl_http_perhapsrewind(struct connectdata *conn);
90 /* If only the PICKNONE bit is set, there has been a round-trip and we
91 selected to use no auth at all. Ie, we actively select no auth, as opposed
92 to not having one selected. The other CURLAUTH_* defines are present in the
93 public curl/curl.h header. */
94 #define CURLAUTH_PICKNONE (1<<30) /* don't use auth */
96 /* MAX_INITIAL_POST_SIZE indicates the number of bytes that will make the POST
97 data get included in the initial data chunk sent to the server. If the
98 data is larger than this, it will automatically get split up in multiple
101 This value used to be fairly big (100K), but we must take into account that
102 if the server rejects the POST due for authentication reasons, this data
103 will always be uncondtionally sent and thus it may not be larger than can
104 always be afforded to send twice.
106 It must not be greater than 64K to work on VMS.
108 #ifndef MAX_INITIAL_POST_SIZE
109 #define MAX_INITIAL_POST_SIZE (64*1024)
112 #ifndef TINY_INITIAL_POST_SIZE
113 #define TINY_INITIAL_POST_SIZE 1024
116 #endif /* CURL_DISABLE_HTTP */
118 /****************************************************************************
120 ***************************************************************************/
122 struct FormData *sendit;
123 curl_off_t postsize; /* off_t to handle large file sizes */
124 const char *postdata;
126 const char *p_pragma; /* Pragma: string */
127 const char *p_accept; /* Accept: string */
128 curl_off_t readbytecount;
129 curl_off_t writebytecount;
131 /* For FORM posting */
135 curl_read_callback fread_func; /* backup storage for fread pointer */
136 void *fread_in; /* backup storage for fread_in pointer */
137 const char *postdata;
142 HTTPSEND_NADA, /* init */
143 HTTPSEND_REQUEST, /* sending a request */
144 HTTPSEND_BODY, /* sending body */
145 HTTPSEND_LAST /* never use this */
148 void *send_buffer; /* used if the request couldn't be sent in one chunk,
149 points to an allocated send_buffer struct */
154 #define H2_BINSETTINGS_LEN 80
156 uint8_t binsettings[H2_BINSETTINGS_LEN];
157 size_t binlen; /* length of the binsettings data */
158 char *mem; /* points to a buffer in memory to store or read from */
159 size_t len; /* size of the buffer 'mem' points to */
162 int unused; /* prevent a compiler warning */
166 CURLcode Curl_http_readwrite_headers(struct SessionHandle *data,
167 struct connectdata *conn,
172 * Curl_http_output_auth() setups the authentication headers for the
173 * host/proxy and the correct authentication
174 * method. conn->data->state.authdone is set to TRUE when authentication is
177 * @param conn all information about the current connection
178 * @param request pointer to the request keyword
179 * @param path pointer to the requested path
180 * @param proxytunnel boolean if this is the request setting up a "proxy
186 Curl_http_output_auth(struct connectdata *conn,
189 bool proxytunnel); /* TRUE if this is the request setting
190 up the proxy tunnel */
192 #endif /* HEADER_CURL_HTTP_H */