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Diffstat (limited to 'Utilities/cmcurl/lib/http.h')
| -rw-r--r-- | Utilities/cmcurl/lib/http.h | 261 |
1 files changed, 261 insertions, 0 deletions
diff --git a/Utilities/cmcurl/lib/http.h b/Utilities/cmcurl/lib/http.h new file mode 100644 index 0000000..d2781bc --- /dev/null +++ b/Utilities/cmcurl/lib/http.h @@ -0,0 +1,261 @@ +#ifndef HEADER_CURL_HTTP_H +#define HEADER_CURL_HTTP_H +/*************************************************************************** + * _ _ ____ _ + * Project ___| | | | _ \| | + * / __| | | | |_) | | + * | (__| |_| | _ <| |___ + * \___|\___/|_| \_\_____| + * + * Copyright (C) 1998 - 2017, 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 *buff); +CURLcode Curl_add_bufferf(Curl_send_buffer *in, const char *fmt, ...); +CURLcode Curl_add_buffer(Curl_send_buffer *in, const void *inptr, size_t size); +CURLcode Curl_add_buffer_send(Curl_send_buffer *in, + struct connectdata *conn, + long *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); + +/* 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 uncondtionally 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 */ + curl_off_t readbytecount; + curl_off_t writebytecount; + + /* 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; + + void *send_buffer; /* used if the request couldn't be sent in one chunk, + points to an allocated send_buffer struct */ + +#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 */ + uint32_t error_code; /* HTTP/2 error code */ + + 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 +}; + +typedef int (*sending)(void); /* Curl_send */ +typedef int (*recving)(void); /* Curl_recv */ + +#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 */ + sending send_underlying; /* underlying send Curl_send callback */ + recving 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; +#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 */ + |