mirror of
https://github.com/curl/curl.git
synced 2024-12-21 06:50:10 +08:00
f19d333ef6
fixing some bugs:
o Don't mix GET and POST requests in a pipeline
o Fix the order in which requests are dispatched from the pipeline
o Fixed several curl bugs with pipelining when the server is returning
chunked encoding:
* Added states to chunked parsing for final CRLF
* Rewind buffer after parsing chunk with data remaining
* Moved chunked header initializing to a spot just before receiving
headers
109 lines
3.6 KiB
C
109 lines
3.6 KiB
C
#ifndef __HTTP_CHUNKS_H
|
|
#define __HTTP_CHUNKS_H
|
|
/***************************************************************************
|
|
* _ _ ____ _
|
|
* Project ___| | | | _ \| |
|
|
* / __| | | | |_) | |
|
|
* | (__| |_| | _ <| |___
|
|
* \___|\___/|_| \_\_____|
|
|
*
|
|
* Copyright (C) 1998 - 2007, 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 http://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.
|
|
*
|
|
* $Id$
|
|
***************************************************************************/
|
|
/*
|
|
* The longest possible hexadecimal number we support in a chunked transfer.
|
|
* Weird enough, RFC2616 doesn't set a maximum size! Since we use strtoul()
|
|
* to convert it, we "only" support 2^32 bytes chunk data.
|
|
*/
|
|
#define MAXNUM_SIZE 16
|
|
|
|
typedef enum {
|
|
CHUNK_FIRST, /* never use */
|
|
|
|
/* In this we await and buffer all hexadecimal digits until we get one
|
|
that isn't a hexadecimal digit. When done, we go POSTHEX */
|
|
CHUNK_HEX,
|
|
|
|
/* We have received the hexadecimal digit and we eat all characters until
|
|
we get a CRLF pair. When we see a CR we go to the CR state. */
|
|
CHUNK_POSTHEX,
|
|
|
|
/* A single CR has been found and we should get a LF right away in this
|
|
state or we go back to POSTHEX. When LF is received, we go to DATA.
|
|
If the size given was zero, we set state to STOP and return. */
|
|
CHUNK_CR,
|
|
|
|
/* We eat the amount of data specified. When done, we move on to the
|
|
POST_CR state. */
|
|
CHUNK_DATA,
|
|
|
|
/* POSTCR should get a CR and nothing else, then move to POSTLF */
|
|
CHUNK_POSTCR,
|
|
|
|
/* POSTLF should get a LF and nothing else, then move back to HEX as the
|
|
CRLF combination marks the end of a chunk */
|
|
CHUNK_POSTLF,
|
|
|
|
/* Each Chunk body should end with a CRLF. Read a CR and nothing else,
|
|
then move to CHUNK_STOP */
|
|
CHUNK_STOPCR,
|
|
|
|
/* This is mainly used to really mark that we're out of the game.
|
|
NOTE: that there's a 'dataleft' field in the struct that will tell how
|
|
many bytes that were not passed to the client in the end of the last
|
|
buffer! */
|
|
CHUNK_STOP,
|
|
|
|
/* At this point optional trailer headers can be found, unless the next line
|
|
is CRLF */
|
|
CHUNK_TRAILER,
|
|
|
|
/* A trailer CR has been found - next state is CHUNK_TRAILER_POSTCR.
|
|
Next char must be a LF */
|
|
CHUNK_TRAILER_CR,
|
|
|
|
/* A trailer LF must be found now, otherwise CHUNKE_BAD_CHUNK will be
|
|
signalled If this is an empty trailer CHUNKE_STOP will be signalled.
|
|
Otherwise the trailer will be broadcasted via Curl_client_write() and the
|
|
next state will be CHUNK_TRAILER */
|
|
CHUNK_TRAILER_POSTCR,
|
|
|
|
CHUNK_LAST /* never use */
|
|
|
|
} ChunkyState;
|
|
|
|
typedef enum {
|
|
CHUNKE_STOP = -1,
|
|
CHUNKE_OK = 0,
|
|
CHUNKE_TOO_LONG_HEX = 1,
|
|
CHUNKE_ILLEGAL_HEX,
|
|
CHUNKE_BAD_CHUNK,
|
|
CHUNKE_WRITE_ERROR,
|
|
CHUNKE_STATE_ERROR,
|
|
CHUNKE_BAD_ENCODING,
|
|
CHUNKE_OUT_OF_MEMORY,
|
|
CHUNKE_LAST
|
|
} CHUNKcode;
|
|
|
|
struct Curl_chunker {
|
|
char hexbuffer[ MAXNUM_SIZE + 1];
|
|
int hexindex;
|
|
ChunkyState state;
|
|
size_t datasize;
|
|
size_t dataleft; /* untouched data amount at the end of the last buffer */
|
|
};
|
|
|
|
#endif
|