mirror of
https://github.com/moparisthebest/curl
synced 2024-12-25 01:28:51 -05:00
65eb65fde6
- no need to have them protocol specific - no need to set pointers to them with the Curl_setup_transfer() call - make Curl_setup_transfer() operate on a transfer pointer, not connection - switch some counters from long to the more proper curl_off_t type Closes #3627
261 lines
10 KiB
C
261 lines
10 KiB
C
#ifndef HEADER_CURL_HTTP_H
|
|
#define HEADER_CURL_HTTP_H
|
|
/***************************************************************************
|
|
* _ _ ____ _
|
|
* Project ___| | | | _ \| |
|
|
* / __| | | | |_) | |
|
|
* | (__| |_| | _ <| |___
|
|
* \___|\___/|_| \_\_____|
|
|
*
|
|
* Copyright (C) 1998 - 2019, Daniel Stenberg, <daniel@haxx.se>, et al.
|
|
*
|
|
* 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.
|
|
*
|
|
* 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
|
|
* furnished to do so, under the terms of the COPYING file.
|
|
*
|
|
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
|
|
* KIND, either express or implied.
|
|
*
|
|
***************************************************************************/
|
|
#include "curl_setup.h"
|
|
|
|
#ifndef CURL_DISABLE_HTTP
|
|
|
|
#ifdef USE_NGHTTP2
|
|
#include <nghttp2/nghttp2.h>
|
|
#endif
|
|
|
|
extern const struct Curl_handler Curl_handler_http;
|
|
|
|
#ifdef USE_SSL
|
|
extern const struct Curl_handler Curl_handler_https;
|
|
#endif
|
|
|
|
/* Header specific functions */
|
|
bool Curl_compareheader(const char *headerline, /* line to check */
|
|
const char *header, /* header keyword _with_ colon */
|
|
const char *content); /* content string to find */
|
|
|
|
char *Curl_copy_header_value(const char *header);
|
|
|
|
char *Curl_checkProxyheaders(const struct connectdata *conn,
|
|
const char *thisheader);
|
|
/* ------------------------------------------------------------------------- */
|
|
/*
|
|
* The add_buffer series of functions are used to build one large memory chunk
|
|
* from repeated function invokes. Used so that the entire HTTP request can
|
|
* be sent in one go.
|
|
*/
|
|
struct Curl_send_buffer {
|
|
char *buffer;
|
|
size_t size_max;
|
|
size_t size_used;
|
|
};
|
|
typedef struct Curl_send_buffer Curl_send_buffer;
|
|
|
|
Curl_send_buffer *Curl_add_buffer_init(void);
|
|
void Curl_add_buffer_free(Curl_send_buffer **inp);
|
|
CURLcode Curl_add_bufferf(Curl_send_buffer **inp, const char *fmt, ...)
|
|
WARN_UNUSED_RESULT;
|
|
CURLcode Curl_add_buffer(Curl_send_buffer **inp, const void *inptr,
|
|
size_t size) WARN_UNUSED_RESULT;
|
|
CURLcode Curl_add_buffer_send(Curl_send_buffer **inp,
|
|
struct connectdata *conn,
|
|
curl_off_t *bytes_written,
|
|
size_t included_body_bytes,
|
|
int socketindex);
|
|
|
|
CURLcode Curl_add_timecondition(struct Curl_easy *data,
|
|
Curl_send_buffer *buf);
|
|
CURLcode Curl_add_custom_headers(struct connectdata *conn,
|
|
bool is_connect,
|
|
Curl_send_buffer *req_buffer);
|
|
CURLcode Curl_http_compile_trailers(struct curl_slist *trailers,
|
|
Curl_send_buffer *buffer,
|
|
struct Curl_easy *handle);
|
|
|
|
/* protocol-specific functions set up to be called by the main engine */
|
|
CURLcode Curl_http(struct connectdata *conn, bool *done);
|
|
CURLcode Curl_http_done(struct connectdata *, CURLcode, bool premature);
|
|
CURLcode Curl_http_connect(struct connectdata *conn, bool *done);
|
|
CURLcode Curl_http_setup_conn(struct connectdata *conn);
|
|
|
|
/* The following functions are defined in http_chunks.c */
|
|
void Curl_httpchunk_init(struct connectdata *conn);
|
|
CHUNKcode Curl_httpchunk_read(struct connectdata *conn, char *datap,
|
|
ssize_t length, ssize_t *wrote);
|
|
|
|
/* These functions are in http.c */
|
|
void Curl_http_auth_stage(struct Curl_easy *data, int stage);
|
|
CURLcode Curl_http_input_auth(struct connectdata *conn, bool proxy,
|
|
const char *auth);
|
|
CURLcode Curl_http_auth_act(struct connectdata *conn);
|
|
CURLcode Curl_http_perhapsrewind(struct connectdata *conn);
|
|
|
|
/* If only the PICKNONE bit is set, there has been a round-trip and we
|
|
selected to use no auth at all. Ie, we actively select no auth, as opposed
|
|
to not having one selected. The other CURLAUTH_* defines are present in the
|
|
public curl/curl.h header. */
|
|
#define CURLAUTH_PICKNONE (1<<30) /* don't use auth */
|
|
|
|
/* MAX_INITIAL_POST_SIZE indicates the number of bytes that will make the POST
|
|
data get included in the initial data chunk sent to the server. If the
|
|
data is larger than this, it will automatically get split up in multiple
|
|
system calls.
|
|
|
|
This value used to be fairly big (100K), but we must take into account that
|
|
if the server rejects the POST due for authentication reasons, this data
|
|
will always be unconditionally sent and thus it may not be larger than can
|
|
always be afforded to send twice.
|
|
|
|
It must not be greater than 64K to work on VMS.
|
|
*/
|
|
#ifndef MAX_INITIAL_POST_SIZE
|
|
#define MAX_INITIAL_POST_SIZE (64*1024)
|
|
#endif
|
|
|
|
/* EXPECT_100_THRESHOLD is the request body size limit for when libcurl will
|
|
* automatically add an "Expect: 100-continue" header in HTTP requests. When
|
|
* the size is unknown, it will always add it.
|
|
*
|
|
*/
|
|
#ifndef EXPECT_100_THRESHOLD
|
|
#define EXPECT_100_THRESHOLD 1024
|
|
#endif
|
|
|
|
#endif /* CURL_DISABLE_HTTP */
|
|
|
|
/****************************************************************************
|
|
* HTTP unique setup
|
|
***************************************************************************/
|
|
struct HTTP {
|
|
curl_mimepart *sendit;
|
|
curl_off_t postsize; /* off_t to handle large file sizes */
|
|
const char *postdata;
|
|
|
|
const char *p_pragma; /* Pragma: string */
|
|
const char *p_accept; /* Accept: string */
|
|
|
|
/* For FORM posting */
|
|
curl_mimepart form;
|
|
|
|
struct back {
|
|
curl_read_callback fread_func; /* backup storage for fread pointer */
|
|
void *fread_in; /* backup storage for fread_in pointer */
|
|
const char *postdata;
|
|
curl_off_t postsize;
|
|
} backup;
|
|
|
|
enum {
|
|
HTTPSEND_NADA, /* init */
|
|
HTTPSEND_REQUEST, /* sending a request */
|
|
HTTPSEND_BODY, /* sending body */
|
|
HTTPSEND_LAST /* never use this */
|
|
} sending;
|
|
|
|
#ifndef CURL_DISABLE_HTTP
|
|
Curl_send_buffer *send_buffer; /* used if the request couldn't be sent in
|
|
one chunk, points to an allocated
|
|
send_buffer struct */
|
|
#endif
|
|
#ifdef USE_NGHTTP2
|
|
/*********** for HTTP/2 we store stream-local data here *************/
|
|
int32_t stream_id; /* stream we are interested in */
|
|
|
|
bool bodystarted;
|
|
/* We store non-final and final response headers here, per-stream */
|
|
Curl_send_buffer *header_recvbuf;
|
|
size_t nread_header_recvbuf; /* number of bytes in header_recvbuf fed into
|
|
upper layer */
|
|
Curl_send_buffer *trailer_recvbuf;
|
|
int status_code; /* HTTP status code */
|
|
const uint8_t *pausedata; /* pointer to data received in on_data_chunk */
|
|
size_t pauselen; /* the number of bytes left in data */
|
|
bool closed; /* TRUE on HTTP2 stream close */
|
|
bool close_handled; /* TRUE if stream closure is handled by libcurl */
|
|
char *mem; /* points to a buffer in memory to store received data */
|
|
size_t len; /* size of the buffer 'mem' points to */
|
|
size_t memlen; /* size of data copied to mem */
|
|
|
|
const uint8_t *upload_mem; /* points to a buffer to read from */
|
|
size_t upload_len; /* size of the buffer 'upload_mem' points to */
|
|
curl_off_t upload_left; /* number of bytes left to upload */
|
|
|
|
char **push_headers; /* allocated array */
|
|
size_t push_headers_used; /* number of entries filled in */
|
|
size_t push_headers_alloc; /* number of entries allocated */
|
|
#endif
|
|
};
|
|
|
|
#ifdef USE_NGHTTP2
|
|
/* h2 settings for this connection */
|
|
struct h2settings {
|
|
uint32_t max_concurrent_streams;
|
|
bool enable_push;
|
|
};
|
|
#endif
|
|
|
|
struct http_conn {
|
|
#ifdef USE_NGHTTP2
|
|
#define H2_BINSETTINGS_LEN 80
|
|
nghttp2_session *h2;
|
|
uint8_t binsettings[H2_BINSETTINGS_LEN];
|
|
size_t binlen; /* length of the binsettings data */
|
|
Curl_send *send_underlying; /* underlying send Curl_send callback */
|
|
Curl_recv *recv_underlying; /* underlying recv Curl_recv callback */
|
|
char *inbuf; /* buffer to receive data from underlying socket */
|
|
size_t inbuflen; /* number of bytes filled in inbuf */
|
|
size_t nread_inbuf; /* number of bytes read from in inbuf */
|
|
/* We need separate buffer for transmission and reception because we
|
|
may call nghttp2_session_send() after the
|
|
nghttp2_session_mem_recv() but mem buffer is still not full. In
|
|
this case, we wrongly sends the content of mem buffer if we share
|
|
them for both cases. */
|
|
int32_t pause_stream_id; /* stream ID which paused
|
|
nghttp2_session_mem_recv */
|
|
size_t drain_total; /* sum of all stream's UrlState.drain */
|
|
|
|
/* this is a hash of all individual streams (Curl_easy structs) */
|
|
struct h2settings settings;
|
|
|
|
/* list of settings that will be sent */
|
|
nghttp2_settings_entry local_settings[3];
|
|
size_t local_settings_num;
|
|
uint32_t error_code; /* HTTP/2 error code */
|
|
#else
|
|
int unused; /* prevent a compiler warning */
|
|
#endif
|
|
};
|
|
|
|
CURLcode Curl_http_readwrite_headers(struct Curl_easy *data,
|
|
struct connectdata *conn,
|
|
ssize_t *nread,
|
|
bool *stop_reading);
|
|
|
|
/**
|
|
* Curl_http_output_auth() setups the authentication headers for the
|
|
* host/proxy and the correct authentication
|
|
* method. conn->data->state.authdone is set to TRUE when authentication is
|
|
* done.
|
|
*
|
|
* @param conn all information about the current connection
|
|
* @param request pointer to the request keyword
|
|
* @param path pointer to the requested path
|
|
* @param proxytunnel boolean if this is the request setting up a "proxy
|
|
* tunnel"
|
|
*
|
|
* @returns CURLcode
|
|
*/
|
|
CURLcode
|
|
Curl_http_output_auth(struct connectdata *conn,
|
|
const char *request,
|
|
const char *path,
|
|
bool proxytunnel); /* TRUE if this is the request setting
|
|
up the proxy tunnel */
|
|
|
|
#endif /* HEADER_CURL_HTTP_H */
|