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Diffstat (limited to 'Utilities/cmcurl/lib/http.h')
| -rw-r--r-- | Utilities/cmcurl/lib/http.h | 313 |
1 files changed, 313 insertions, 0 deletions
diff --git a/Utilities/cmcurl/lib/http.h b/Utilities/cmcurl/lib/http.h new file mode 100644 index 0000000..28f9341 --- /dev/null +++ b/Utilities/cmcurl/lib/http.h @@ -0,0 +1,313 @@ +#ifndef HEADER_CURL_HTTP_H +#define HEADER_CURL_HTTP_H +/*************************************************************************** + * _ _ ____ _ + * Project ___| | | | _ \| | + * / __| | | | |_) | | + * | (__| |_| | _ <| |___ + * \___|\___/|_| \_\_____| + * + * Copyright (C) 1998 - 2021, 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.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" + +typedef enum { + HTTPREQ_GET, + HTTPREQ_POST, + HTTPREQ_POST_FORM, /* we make a difference internally */ + HTTPREQ_POST_MIME, /* we make a difference internally */ + HTTPREQ_PUT, + HTTPREQ_HEAD +} Curl_HttpReq; + +#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(struct Curl_easy *data, + const struct connectdata *conn, + const char *thisheader); +#ifndef USE_HYPER +CURLcode Curl_buffer_send(struct dynbuf *in, + struct Curl_easy *data, + curl_off_t *bytes_written, + size_t included_body_bytes, + int socketindex); +#else +#define Curl_buffer_send(a,b,c,d,e) CURLE_OK +#endif + +CURLcode Curl_add_timecondition(struct Curl_easy *data, +#ifndef USE_HYPER + struct dynbuf *req +#else + void *headers +#endif + ); +CURLcode Curl_add_custom_headers(struct Curl_easy *data, + bool is_connect, +#ifndef USE_HYPER + struct dynbuf *req +#else + void *headers +#endif + ); +CURLcode Curl_http_compile_trailers(struct curl_slist *trailers, + struct dynbuf *buf, + struct Curl_easy *handle); + +void Curl_http_method(struct Curl_easy *data, struct connectdata *conn, + const char **method, Curl_HttpReq *); +CURLcode Curl_http_useragent(struct Curl_easy *data); +CURLcode Curl_http_host(struct Curl_easy *data, struct connectdata *conn); +CURLcode Curl_http_target(struct Curl_easy *data, struct connectdata *conn, + struct dynbuf *req); +CURLcode Curl_http_statusline(struct Curl_easy *data, + struct connectdata *conn); +CURLcode Curl_http_header(struct Curl_easy *data, struct connectdata *conn, + char *headp); +CURLcode Curl_http_body(struct Curl_easy *data, struct connectdata *conn, + Curl_HttpReq httpreq, + const char **teep); +CURLcode Curl_http_bodysend(struct Curl_easy *data, struct connectdata *conn, + struct dynbuf *r, Curl_HttpReq httpreq); +#ifndef CURL_DISABLE_COOKIES +CURLcode Curl_http_cookies(struct Curl_easy *data, + struct connectdata *conn, + struct dynbuf *r); +#else +#define Curl_http_cookies(a,b,c) CURLE_OK +#endif +CURLcode Curl_http_resume(struct Curl_easy *data, + struct connectdata *conn, + Curl_HttpReq httpreq); +CURLcode Curl_http_range(struct Curl_easy *data, + Curl_HttpReq httpreq); +CURLcode Curl_http_firstwrite(struct Curl_easy *data, + struct connectdata *conn, + bool *done); + +/* protocol-specific functions set up to be called by the main engine */ +CURLcode Curl_http(struct Curl_easy *data, bool *done); +CURLcode Curl_http_done(struct Curl_easy *data, CURLcode, bool premature); +CURLcode Curl_http_connect(struct Curl_easy *data, bool *done); + +/* These functions are in http.c */ +CURLcode Curl_http_input_auth(struct Curl_easy *data, bool proxy, + const char *auth); +CURLcode Curl_http_auth_act(struct Curl_easy *data); + +/* 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*1024) +#endif + +#endif /* CURL_DISABLE_HTTP */ + +#ifdef USE_NGHTTP3 +struct h3out; /* see ngtcp2 */ +#endif + +/**************************************************************************** + * 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 */ + + /* 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 + struct dynbuf 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 */ + struct dynbuf header_recvbuf; + size_t nread_header_recvbuf; /* number of bytes in header_recvbuf fed into + upper layer */ + struct dynbuf 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 close_handled; /* TRUE if stream closure is handled by libcurl */ + + 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 +#if defined(USE_NGHTTP2) || defined(USE_NGHTTP3) + bool closed; /* TRUE on HTTP2 stream close */ + 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 */ +#endif +#if defined(USE_NGHTTP2) || defined(ENABLE_QUIC) + /* fields used by both HTTP/2 and HTTP/3 */ + 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 */ +#endif + +#ifdef ENABLE_QUIC + /*********** for HTTP/3 we store stream-local data here *************/ + int64_t stream3_id; /* stream we are interested in */ + bool firstheader; /* FALSE until headers arrive */ + bool firstbody; /* FALSE until body arrives */ + bool h3req; /* FALSE until request is issued */ + bool upload_done; +#endif +#ifdef USE_NGHTTP3 + size_t unacked_window; + struct h3out *h3out; /* per-stream buffers for upload */ + struct dynbuf overflow; /* excess data received during a single Curl_read */ +#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. data->state.authdone is set to TRUE when authentication is + * done. + * + * @param data all information about the current transfer + * @param conn all information about the current connection + * @param request pointer to the request keyword + * @param httpreq is the request type + * @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 Curl_easy *data, + struct connectdata *conn, + const char *request, + Curl_HttpReq httpreq, + const char *path, + bool proxytunnel); /* TRUE if this is the request setting + up the proxy tunnel */ + +#endif /* HEADER_CURL_HTTP_H */ |