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Diffstat (limited to 'Source/CTest/Curl/http_chunks.c')
| -rw-r--r-- | Source/CTest/Curl/http_chunks.c | 264 |
1 files changed, 0 insertions, 264 deletions
diff --git a/Source/CTest/Curl/http_chunks.c b/Source/CTest/Curl/http_chunks.c deleted file mode 100644 index 02fdfc5..0000000 --- a/Source/CTest/Curl/http_chunks.c +++ /dev/null @@ -1,264 +0,0 @@ -/*************************************************************************** - * _ _ ____ _ - * Project ___| | | | _ \| | - * / __| | | | |_) | | - * | (__| |_| | _ <| |___ - * \___|\___/|_| \_\_____| - * - * Copyright (C) 1998 - 2004, 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. - * - * $Id$ - ***************************************************************************/ -#include "setup.h" - -#ifndef CURL_DISABLE_HTTP -/* -- WIN32 approved -- */ -#include <stdio.h> -#include <string.h> -#include <stdarg.h> -#include <stdlib.h> -#include <ctype.h> - -#include "urldata.h" /* it includes http_chunks.h */ -#include "sendf.h" /* for the client write stuff */ - -#include "content_encoding.h" -#include "http.h" -#include "curl_memory.h" - -#define _MPRINTF_REPLACE /* use our functions only */ -#include <curl/mprintf.h> - -/* The last #include file should be: */ -#include "memdebug.h" - -/* - * Chunk format (simplified): - * - * <HEX SIZE>[ chunk extension ] CRLF - * <DATA> CRLF - * - * Highlights from RFC2616 section 3.6 say: - - The chunked encoding modifies the body of a message in order to - transfer it as a series of chunks, each with its own size indicator, - followed by an OPTIONAL trailer containing entity-header fields. This - allows dynamically produced content to be transferred along with the - information necessary for the recipient to verify that it has - received the full message. - - Chunked-Body = *chunk - last-chunk - trailer - CRLF - - chunk = chunk-size [ chunk-extension ] CRLF - chunk-data CRLF - chunk-size = 1*HEX - last-chunk = 1*("0") [ chunk-extension ] CRLF - - chunk-extension= *( ";" chunk-ext-name [ "=" chunk-ext-val ] ) - chunk-ext-name = token - chunk-ext-val = token | quoted-string - chunk-data = chunk-size(OCTET) - trailer = *(entity-header CRLF) - - The chunk-size field is a string of hex digits indicating the size of - the chunk. The chunked encoding is ended by any chunk whose size is - zero, followed by the trailer, which is terminated by an empty line. - - */ - - -void Curl_httpchunk_init(struct connectdata *conn) -{ - struct Curl_chunker *chunk = &conn->proto.http->chunk; - chunk->hexindex=0; /* start at 0 */ - chunk->dataleft=0; /* no data left yet! */ - chunk->state = CHUNK_HEX; /* we get hex first! */ -} - -/* - * chunk_read() returns a OK for normal operations, or a positive return code - * for errors. STOP means this sequence of chunks is complete. The 'wrote' - * argument is set to tell the caller how many bytes we actually passed to the - * client (for byte-counting and whatever). - * - * The states and the state-machine is further explained in the header file. - */ -CHUNKcode Curl_httpchunk_read(struct connectdata *conn, - char *datap, - ssize_t datalen, - ssize_t *wrotep) -{ - CURLcode result=CURLE_OK; - struct Curl_chunker *ch = &conn->proto.http->chunk; - struct Curl_transfer_keeper *k = &conn->keep; - size_t piece; - size_t length = (size_t)datalen; - size_t *wrote = (size_t *)wrotep; - - *wrote = 0; /* nothing's written yet */ - - while(length) { - switch(ch->state) { - case CHUNK_HEX: - if(isxdigit((int)*datap)) { - if(ch->hexindex < MAXNUM_SIZE) { - ch->hexbuffer[ch->hexindex] = *datap; - datap++; - length--; - ch->hexindex++; - } - else { - return CHUNKE_TOO_LONG_HEX; /* longer hex than we support */ - } - } - else { - if(0 == ch->hexindex) { - /* This is illegal data, we received junk where we expected - a hexadecimal digit. */ - return CHUNKE_ILLEGAL_HEX; - } - /* length and datap are unmodified */ - ch->hexbuffer[ch->hexindex]=0; - ch->datasize=strtoul(ch->hexbuffer, NULL, 16); - ch->state = CHUNK_POSTHEX; - } - break; - - case CHUNK_POSTHEX: - /* In this state, we're waiting for CRLF to arrive. We support - this to allow so called chunk-extensions to show up here - before the CRLF comes. */ - if(*datap == '\r') - ch->state = CHUNK_CR; - length--; - datap++; - break; - - case CHUNK_CR: - /* waiting for the LF */ - if(*datap == '\n') { - /* we're now expecting data to come, unless size was zero! */ - if(0 == ch->datasize) { - ch->state = CHUNK_STOP; /* stop reading! */ - if(1 == length) { - /* This was the final byte, return right now */ - return CHUNKE_STOP; - } - } - else - ch->state = CHUNK_DATA; - } - else - /* previously we got a fake CR, go back to CR waiting! */ - ch->state = CHUNK_CR; - datap++; - length--; - break; - - case CHUNK_DATA: - /* we get pure and fine data - - We expect another 'datasize' of data. We have 'length' right now, - it can be more or less than 'datasize'. Get the smallest piece. - */ - piece = (ch->datasize >= length)?length:ch->datasize; - - /* Write the data portion available */ -#ifdef HAVE_LIBZ - switch (conn->keep.content_encoding) { - case IDENTITY: -#endif - if(!k->ignorebody) - result = Curl_client_write(conn->data, CLIENTWRITE_BODY, datap, - piece); -#ifdef HAVE_LIBZ - break; - - case DEFLATE: - /* update conn->keep.str to point to the chunk data. */ - conn->keep.str = datap; - result = Curl_unencode_deflate_write(conn->data, &conn->keep, - (ssize_t)piece); - break; - - case GZIP: - /* update conn->keep.str to point to the chunk data. */ - conn->keep.str = datap; - result = Curl_unencode_gzip_write(conn->data, &conn->keep, - (ssize_t)piece); - break; - - case COMPRESS: - default: - failf (conn->data, - "Unrecognized content encoding type. " - "libcurl understands `identity', `deflate' and `gzip' " - "content encodings."); - return CHUNKE_BAD_ENCODING; - } -#endif - - if(result) - return CHUNKE_WRITE_ERROR; - - *wrote += piece; - - ch->datasize -= piece; /* decrease amount left to expect */ - datap += piece; /* move read pointer forward */ - length -= piece; /* decrease space left in this round */ - - if(0 == ch->datasize) - /* end of data this round, we now expect a trailing CRLF */ - ch->state = CHUNK_POSTCR; - break; - - case CHUNK_POSTCR: - if(*datap == '\r') { - ch->state = CHUNK_POSTLF; - datap++; - length--; - } - else - return CHUNKE_BAD_CHUNK; - break; - - case CHUNK_POSTLF: - if(*datap == '\n') { - /* - * The last one before we go back to hex state and start all - * over. - */ - Curl_httpchunk_init(conn); - datap++; - length--; - } - else - return CHUNKE_BAD_CHUNK; - break; - - case CHUNK_STOP: - /* If we arrive here, there is data left in the end of the buffer - even if there's no more chunks to read */ - ch->dataleft = length; - return CHUNKE_STOP; /* return stop */ - default: - return CHUNKE_STATE_ERROR; - } - } - return CHUNKE_OK; -} -#endif /* CURL_DISABLE_HTTP */ |