mirror of
https://github.com/moparisthebest/curl
synced 2024-10-31 15:45:12 -04:00
995 lines
31 KiB
C
995 lines
31 KiB
C
/***************************************************************************
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* _ _ ____ _
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* Project ___| | | | _ \| |
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* / __| | | | |_) | |
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* | (__| |_| | _ <| |___
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* \___|\___/|_| \_\_____|
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*
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* Copyright (C) 1998 - 2002, Daniel Stenberg, <daniel@haxx.se>, et al.
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*
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* This software is licensed as described in the file COPYING, which
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* you should have received as part of this distribution. The terms
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* are also available at http://curl.haxx.se/docs/copyright.html.
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*
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* You may opt to use, copy, modify, merge, publish, distribute and/or sell
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* copies of the Software, and permit persons to whom the Software is
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* furnished to do so, under the terms of the COPYING file.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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* $Id$
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***************************************************************************/
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#include "setup.h"
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#ifndef CURL_DISABLE_HTTP
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/* -- WIN32 approved -- */
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#include <stdio.h>
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#include <string.h>
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#include <stdarg.h>
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#include <stdlib.h>
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#include <ctype.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <errno.h>
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#if defined(WIN32) && !defined(__GNUC__) || defined(__MINGW32__)
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#include <winsock.h>
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#include <time.h>
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#include <io.h>
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#else
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#ifdef HAVE_SYS_SOCKET_H
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#include <sys/socket.h>
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#endif
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#ifdef HAVE_NETINET_IN_H
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#include <netinet/in.h>
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#endif
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#include <sys/time.h>
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#ifdef HAVE_TIME_H
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#ifdef TIME_WITH_SYS_TIME
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#include <time.h>
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#endif
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#endif
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#include <sys/resource.h>
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#ifdef HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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#include <netdb.h>
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#ifdef HAVE_ARPA_INET_H
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#include <arpa/inet.h>
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#endif
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#ifdef HAVE_NET_IF_H
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#include <net/if.h>
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#endif
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#include <sys/ioctl.h>
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#include <signal.h>
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#ifdef HAVE_SYS_PARAM_H
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#include <sys/param.h>
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#endif
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#ifdef HAVE_SYS_SELECT_H
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#include <sys/select.h>
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#endif
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#endif
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#include "urldata.h"
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#include <curl/curl.h>
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#include "transfer.h"
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#include "sendf.h"
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#include "formdata.h"
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#include "progress.h"
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#include "base64.h"
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#include "cookie.h"
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#include "strequal.h"
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#include "ssluse.h"
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#define _MPRINTF_REPLACE /* use our functions only */
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#include <curl/mprintf.h>
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/* The last #include file should be: */
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#ifdef MALLOCDEBUG
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#include "memdebug.h"
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#endif
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/* ------------------------------------------------------------------------- */
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/*
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* The add_buffer series of functions are used to build one large memory chunk
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* from repeated function invokes. Used so that the entire HTTP request can
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* be sent in one go.
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*/
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static CURLcode
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add_buffer(send_buffer *in, const void *inptr, size_t size);
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/*
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* add_buffer_init() returns a fine buffer struct
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*/
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static
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send_buffer *add_buffer_init(void)
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{
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send_buffer *blonk;
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blonk=(send_buffer *)malloc(sizeof(send_buffer));
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if(blonk) {
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memset(blonk, 0, sizeof(send_buffer));
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return blonk;
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}
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return NULL; /* failed, go home */
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}
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/*
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* add_buffer_send() sends a buffer and frees all associated memory.
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*/
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static
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CURLcode add_buffer_send(int sockfd, struct connectdata *conn, send_buffer *in,
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long *bytes_written)
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{
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ssize_t amount;
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CURLcode res;
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char *ptr;
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int size;
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/* The looping below is required since we use non-blocking sockets, but due
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to the circumstances we will just loop and try again and again etc */
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ptr = in->buffer;
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size = in->size_used;
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do {
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res = Curl_write(conn, sockfd, ptr, size, &amount);
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if(CURLE_OK != res)
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break;
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if(conn->data->set.verbose)
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/* this data _may_ contain binary stuff */
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Curl_debug(conn->data, CURLINFO_HEADER_OUT, ptr, amount);
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if(amount != size) {
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size -= amount;
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ptr += amount;
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}
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else
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break;
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} while(1);
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if(in->buffer)
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free(in->buffer);
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free(in);
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*bytes_written += amount;
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return res;
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}
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/*
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* add_bufferf() builds a buffer from the formatted input
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*/
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static
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CURLcode add_bufferf(send_buffer *in, const char *fmt, ...)
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{
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CURLcode result = CURLE_OUT_OF_MEMORY;
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char *s;
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va_list ap;
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va_start(ap, fmt);
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s = vaprintf(fmt, ap); /* this allocs a new string to append */
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va_end(ap);
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if(s) {
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result = add_buffer(in, s, strlen(s));
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free(s);
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}
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return result;
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}
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/*
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* add_buffer() appends a memory chunk to the existing one
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*/
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static
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CURLcode add_buffer(send_buffer *in, const void *inptr, size_t size)
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{
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char *new_rb;
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int new_size;
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if(!in->buffer ||
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((in->size_used + size) > (in->size_max - 1))) {
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new_size = (in->size_used+size)*2;
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if(in->buffer)
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/* we have a buffer, enlarge the existing one */
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new_rb = (char *)realloc(in->buffer, new_size);
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else
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/* create a new buffer */
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new_rb = (char *)malloc(new_size);
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if(!new_rb)
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return CURLE_OUT_OF_MEMORY;
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in->buffer = new_rb;
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in->size_max = new_size;
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}
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memcpy(&in->buffer[in->size_used], inptr, size);
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in->size_used += size;
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return CURLE_OK;
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}
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/* end of the add_buffer functions */
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/* ------------------------------------------------------------------------- */
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/*
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* This function checks the linked list of custom HTTP headers for a particular
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* header (prefix).
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*/
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static bool checkheaders(struct SessionHandle *data, const char *thisheader)
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{
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struct curl_slist *head;
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size_t thislen = strlen(thisheader);
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for(head = data->set.headers; head; head=head->next) {
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if(strnequal(head->data, thisheader, thislen)) {
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return TRUE;
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}
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}
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return FALSE;
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}
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/*
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* ConnectHTTPProxyTunnel() requires that we're connected to a HTTP proxy. This
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* function will issue the necessary commands to get a seamless tunnel through
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* this proxy. After that, the socket can be used just as a normal socket.
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*/
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CURLcode Curl_ConnectHTTPProxyTunnel(struct connectdata *conn,
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int tunnelsocket,
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char *hostname, int remote_port)
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{
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int httperror=0;
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int subversion=0;
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struct SessionHandle *data=conn->data;
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CURLcode result;
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int res;
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int nread; /* total size read */
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int perline; /* count bytes per line */
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bool keepon=TRUE;
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ssize_t gotbytes;
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char *ptr;
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int timeout = 3600; /* default timeout in seconds */
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struct timeval interval;
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fd_set rkeepfd;
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fd_set readfd;
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char *line_start;
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#define SELECT_OK 0
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#define SELECT_ERROR 1
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#define SELECT_TIMEOUT 2
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int error = SELECT_OK;
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infof(data, "Establish HTTP proxy tunnel to %s:%d\n", hostname, remote_port);
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/* OK, now send the connect request to the proxy */
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result =
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Curl_sendf(tunnelsocket, conn,
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"CONNECT %s:%d HTTP/1.0\015\012"
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"%s"
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"%s"
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"\r\n",
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hostname, remote_port,
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(conn->bits.proxy_user_passwd)?conn->allocptr.proxyuserpwd:"",
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(data->set.useragent?conn->allocptr.uagent:"")
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);
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if(result) {
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failf(data, "Failed sending CONNECT to proxy");
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return result;
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}
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/* Now, read the full reply we get from the proxy */
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if(data->set.timeout) {
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/* if timeout is requested, find out how much remaining time we have */
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timeout = data->set.timeout - /* timeout time */
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Curl_tvdiff(Curl_tvnow(), conn->now)/1000; /* spent time */
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if(timeout <=0 ) {
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failf(data, "Transfer aborted due to timeout");
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return -SELECT_TIMEOUT; /* already too little time */
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}
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}
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FD_ZERO (&readfd); /* clear it */
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FD_SET (tunnelsocket, &readfd); /* read socket */
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/* get this in a backup variable to be able to restore it on each lap in the
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select() loop */
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rkeepfd = readfd;
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ptr=data->state.buffer;
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line_start = ptr;
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nread=0;
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perline=0;
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keepon=TRUE;
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while((nread<BUFSIZE) && (keepon && !error)) {
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readfd = rkeepfd; /* set every lap */
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interval.tv_sec = timeout;
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interval.tv_usec = 0;
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switch (select (tunnelsocket+1, &readfd, NULL, NULL, &interval)) {
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case -1: /* select() error, stop reading */
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error = SELECT_ERROR;
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failf(data, "Transfer aborted due to select() error");
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break;
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case 0: /* timeout */
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error = SELECT_TIMEOUT;
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failf(data, "Transfer aborted due to timeout");
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break;
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default:
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/*
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* This code previously didn't use the kerberos sec_read() code
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* to read, but when we use Curl_read() it may do so. Do confirm
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* that this is still ok and then remove this comment!
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*/
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res= Curl_read(conn, tunnelsocket, ptr, BUFSIZE-nread,
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&gotbytes);
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if(res< 0)
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/* EWOULDBLOCK */
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continue; /* go loop yourself */
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else if(res)
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keepon = FALSE;
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else if(gotbytes <= 0) {
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keepon = FALSE;
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error = SELECT_ERROR;
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failf(data, "Connection aborted");
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}
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else {
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/* we got a whole chunk of data, which can be anything from one
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* byte to a set of lines and possibly just a piece of the last
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* line */
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int i;
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nread += gotbytes;
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for(i = 0; i < gotbytes; ptr++, i++) {
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perline++; /* amount of bytes in this line so far */
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if(*ptr=='\n') {
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/* a newline is CRLF in ftp-talk, so the CR is ignored as
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the line isn't really terminated until the LF comes */
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/* output debug output if that is requested */
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if(data->set.verbose)
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Curl_debug(data, CURLINFO_DATA_IN, line_start, perline);
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if('\r' == line_start[0]) {
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/* end of headers */
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keepon=FALSE;
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break; /* breaks out of loop, not switch */
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}
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if(2 == sscanf(line_start, "HTTP/1.%d %d",
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&subversion,
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&httperror)) {
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;
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}
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perline=0; /* line starts over here */
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line_start = ptr+1;
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}
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}
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}
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break;
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} /* switch */
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} /* while there's buffer left and loop is requested */
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if(error)
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return CURLE_RECV_ERROR;
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if(200 != httperror) {
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if(407 == httperror)
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/* Added Nov 6 1998 */
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failf(data, "Proxy requires authorization!");
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else
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failf(data, "Received error code %d from proxy", httperror);
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return CURLE_RECV_ERROR;
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}
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infof (data, "Proxy replied to CONNECT request\n");
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return CURLE_OK;
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}
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/*
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* HTTP stuff to do at connect-time.
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*/
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CURLcode Curl_http_connect(struct connectdata *conn)
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{
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struct SessionHandle *data;
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CURLcode result;
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data=conn->data;
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/* If we are not using a proxy and we want a secure connection,
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* perform SSL initialization & connection now.
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* If using a proxy with https, then we must tell the proxy to CONNECT
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* us to the host we want to talk to. Only after the connect
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* has occured, can we start talking SSL
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*/
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if(data->change.proxy && (data->set.proxytype == CURLPROXY_HTTP) &&
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((conn->protocol & PROT_HTTPS) || data->set.tunnel_thru_httpproxy)) {
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/* either HTTPS over proxy, OR explicitly asked for a tunnel */
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result = Curl_ConnectHTTPProxyTunnel(conn, conn->firstsocket,
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conn->hostname, conn->remote_port);
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if(CURLE_OK != result)
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return result;
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}
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if(conn->protocol & PROT_HTTPS) {
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/* now, perform the SSL initialization for this socket */
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result = Curl_SSLConnect(conn);
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if(result)
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return result;
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}
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if(conn->bits.user_passwd && !data->state.this_is_a_follow) {
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/* Authorization: is requested, this is not a followed location, get the
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original host name */
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data->state.auth_host = strdup(conn->hostname);
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}
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return CURLE_OK;
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}
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CURLcode Curl_http_done(struct connectdata *conn)
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{
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struct SessionHandle *data;
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long *bytecount = &conn->bytecount;
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struct HTTP *http;
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data=conn->data;
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http=conn->proto.http;
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if(HTTPREQ_POST_FORM == data->set.httpreq) {
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*bytecount = http->readbytecount + http->writebytecount;
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Curl_formclean(http->sendit); /* Now free that whole lot */
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data->set.fread = http->storefread; /* restore */
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data->set.in = http->in; /* restore */
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}
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else if(HTTPREQ_PUT == data->set.httpreq) {
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*bytecount = http->readbytecount + http->writebytecount;
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}
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if(0 == (http->readbytecount + conn->headerbytecount)) {
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/* nothing was read from the HTTP server, this can't be right
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so we return an error here */
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failf(data, "Empty reply from server");
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return CURLE_GOT_NOTHING;
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}
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return CURLE_OK;
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}
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CURLcode Curl_http(struct connectdata *conn)
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{
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struct SessionHandle *data=conn->data;
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char *buf = data->state.buffer; /* this is a short cut to the buffer */
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CURLcode result=CURLE_OK;
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struct HTTP *http;
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struct Cookie *co=NULL; /* no cookies from start */
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char *ppath = conn->ppath; /* three previous function arguments */
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char *host = conn->name;
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long *bytecount = &conn->bytecount;
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if(!conn->proto.http) {
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/* Only allocate this struct if we don't already have it! */
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http = (struct HTTP *)malloc(sizeof(struct HTTP));
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if(!http)
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return CURLE_OUT_OF_MEMORY;
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memset(http, 0, sizeof(struct HTTP));
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conn->proto.http = http;
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}
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else
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http = conn->proto.http;
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/* We default to persistant connections */
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conn->bits.close = FALSE;
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if ( (conn->protocol&(PROT_HTTP|PROT_FTP)) &&
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data->set.upload) {
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data->set.httpreq = HTTPREQ_PUT;
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}
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/* The User-Agent string has been built in url.c already, because it might
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have been used in the proxy connect, but if we have got a header with
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the user-agent string specified, we erase the previously made string
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here. */
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if(checkheaders(data, "User-Agent:") && conn->allocptr.uagent) {
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free(conn->allocptr.uagent);
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conn->allocptr.uagent=NULL;
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}
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if((conn->bits.user_passwd) && !checkheaders(data, "Authorization:")) {
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char *authorization;
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/* To prevent the user+password to get sent to other than the original
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host due to a location-follow, we do some weirdo checks here */
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if(!data->state.this_is_a_follow ||
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!data->state.auth_host ||
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strequal(data->state.auth_host, conn->hostname)) {
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sprintf(data->state.buffer, "%s:%s",
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data->state.user, data->state.passwd);
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if(Curl_base64_encode(data->state.buffer, strlen(data->state.buffer),
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&authorization) >= 0) {
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if(conn->allocptr.userpwd)
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free(conn->allocptr.userpwd);
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conn->allocptr.userpwd = aprintf( "Authorization: Basic %s\015\012",
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authorization);
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free(authorization);
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}
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}
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}
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if((data->change.referer) && !checkheaders(data, "Referer:")) {
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if(conn->allocptr.ref)
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free(conn->allocptr.ref);
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conn->allocptr.ref = aprintf("Referer: %s\015\012", data->change.referer);
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}
|
|
if(data->set.cookie && !checkheaders(data, "Cookie:")) {
|
|
if(conn->allocptr.cookie)
|
|
free(conn->allocptr.cookie);
|
|
conn->allocptr.cookie = aprintf("Cookie: %s\015\012", data->set.cookie);
|
|
}
|
|
|
|
if(data->cookies) {
|
|
co = Curl_cookie_getlist(data->cookies,
|
|
host, ppath,
|
|
(conn->protocol&PROT_HTTPS?TRUE:FALSE));
|
|
}
|
|
if (data->change.proxy &&
|
|
!data->set.tunnel_thru_httpproxy &&
|
|
!(conn->protocol&PROT_HTTPS)) {
|
|
/* The path sent to the proxy is in fact the entire URL */
|
|
ppath = data->change.url;
|
|
}
|
|
if(HTTPREQ_POST_FORM == data->set.httpreq) {
|
|
/* we must build the whole darned post sequence first, so that we have
|
|
a size of the whole shebang before we start to send it */
|
|
result = Curl_getFormData(&http->sendit, data->set.httppost,
|
|
&http->postsize);
|
|
if(CURLE_OK != result) {
|
|
/* Curl_getFormData() doesn't use failf() */
|
|
failf(data, "failed creating formpost data");
|
|
return result;
|
|
}
|
|
}
|
|
|
|
if(!checkheaders(data, "Host:")) {
|
|
/* if ptr_host is already set, it is almost OK since we only re-use
|
|
connections to the very same host and port, but when we use a HTTP
|
|
proxy we have a persistant connect and yet we must change the Host:
|
|
header! */
|
|
|
|
if(conn->allocptr.host)
|
|
free(conn->allocptr.host);
|
|
|
|
if(((conn->protocol&PROT_HTTPS) && (conn->remote_port == PORT_HTTPS)) ||
|
|
(!(conn->protocol&PROT_HTTPS) && (conn->remote_port == PORT_HTTP)) )
|
|
/* If (HTTPS on port 443) OR (non-HTTPS on port 80) then don't include
|
|
the port number in the host string */
|
|
conn->allocptr.host = aprintf("Host: %s\r\n", host);
|
|
else
|
|
conn->allocptr.host = aprintf("Host: %s:%d\r\n", host,
|
|
conn->remote_port);
|
|
}
|
|
|
|
if(!checkheaders(data, "Pragma:"))
|
|
http->p_pragma = "Pragma: no-cache\r\n";
|
|
|
|
if(!checkheaders(data, "Accept:"))
|
|
http->p_accept = "Accept: image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, */*\r\n";
|
|
|
|
if(( (HTTPREQ_POST == data->set.httpreq) ||
|
|
(HTTPREQ_POST_FORM == data->set.httpreq) ||
|
|
(HTTPREQ_PUT == data->set.httpreq) ) &&
|
|
conn->resume_from) {
|
|
/**********************************************************************
|
|
* Resuming upload in HTTP means that we PUT or POST and that we have
|
|
* got a resume_from value set. The resume value has already created
|
|
* a Range: header that will be passed along. We need to "fast forward"
|
|
* the file the given number of bytes and decrease the assume upload
|
|
* file size before we continue this venture in the dark lands of HTTP.
|
|
*********************************************************************/
|
|
|
|
if(conn->resume_from < 0 ) {
|
|
/*
|
|
* This is meant to get the size of the present remote-file by itself.
|
|
* We don't support this now. Bail out!
|
|
*/
|
|
conn->resume_from = 0;
|
|
}
|
|
|
|
if(conn->resume_from) {
|
|
/* do we still game? */
|
|
int passed=0;
|
|
|
|
/* Now, let's read off the proper amount of bytes from the
|
|
input. If we knew it was a proper file we could've just
|
|
fseek()ed but we only have a stream here */
|
|
do {
|
|
int readthisamountnow = (conn->resume_from - passed);
|
|
int actuallyread;
|
|
|
|
if(readthisamountnow > BUFSIZE)
|
|
readthisamountnow = BUFSIZE;
|
|
|
|
actuallyread =
|
|
data->set.fread(data->state.buffer, 1, readthisamountnow,
|
|
data->set.in);
|
|
|
|
passed += actuallyread;
|
|
if(actuallyread != readthisamountnow) {
|
|
failf(data, "Could only read %d bytes from the input",
|
|
passed);
|
|
return CURLE_READ_ERROR;
|
|
}
|
|
} while(passed != conn->resume_from); /* loop until done */
|
|
|
|
/* now, decrease the size of the read */
|
|
if(data->set.infilesize>0) {
|
|
data->set.infilesize -= conn->resume_from;
|
|
|
|
if(data->set.infilesize <= 0) {
|
|
failf(data, "File already completely uploaded");
|
|
return CURLE_PARTIAL_FILE;
|
|
}
|
|
}
|
|
/* we've passed, proceed as normal */
|
|
}
|
|
}
|
|
if(conn->bits.use_range) {
|
|
/*
|
|
* A range is selected. We use different headers whether we're downloading
|
|
* or uploading and we always let customized headers override our internal
|
|
* ones if any such are specified.
|
|
*/
|
|
if((data->set.httpreq == HTTPREQ_GET) &&
|
|
!checkheaders(data, "Range:")) {
|
|
conn->allocptr.rangeline = aprintf("Range: bytes=%s\r\n", conn->range);
|
|
}
|
|
else if((data->set.httpreq != HTTPREQ_GET) &&
|
|
!checkheaders(data, "Content-Range:")) {
|
|
|
|
if(conn->resume_from) {
|
|
/* This is because "resume" was selected */
|
|
long total_expected_size= conn->resume_from + data->set.infilesize;
|
|
conn->allocptr.rangeline = aprintf("Content-Range: bytes %s%ld/%ld\r\n",
|
|
conn->range, total_expected_size-1,
|
|
total_expected_size);
|
|
}
|
|
else {
|
|
/* Range was selected and then we just pass the incoming range and
|
|
append total size */
|
|
conn->allocptr.rangeline = aprintf("Content-Range: bytes %s/%d\r\n",
|
|
conn->range, data->set.infilesize);
|
|
}
|
|
}
|
|
}
|
|
|
|
do {
|
|
/* Use 1.1 unless the use specificly asked for 1.0 */
|
|
const char *httpstring=
|
|
data->set.httpversion==CURL_HTTP_VERSION_1_0?"1.0":"1.1";
|
|
|
|
send_buffer *req_buffer;
|
|
struct curl_slist *headers=data->set.headers;
|
|
|
|
/* initialize a dynamic send-buffer */
|
|
req_buffer = add_buffer_init();
|
|
|
|
/* add the main request stuff */
|
|
add_bufferf(req_buffer,
|
|
"%s " /* GET/HEAD/POST/PUT */
|
|
"%s HTTP/%s\r\n" /* path */
|
|
"%s" /* proxyuserpwd */
|
|
"%s" /* userpwd */
|
|
"%s" /* range */
|
|
"%s" /* user agent */
|
|
"%s" /* cookie */
|
|
"%s" /* host */
|
|
"%s" /* pragma */
|
|
"%s" /* accept */
|
|
"%s" /* accept-encoding */
|
|
"%s", /* referer */
|
|
|
|
data->set.customrequest?data->set.customrequest:
|
|
(data->set.no_body?"HEAD":
|
|
((HTTPREQ_POST == data->set.httpreq) ||
|
|
(HTTPREQ_POST_FORM == data->set.httpreq))?"POST":
|
|
(HTTPREQ_PUT == data->set.httpreq)?"PUT":"GET"),
|
|
ppath, httpstring,
|
|
(conn->bits.proxy_user_passwd &&
|
|
conn->allocptr.proxyuserpwd)?conn->allocptr.proxyuserpwd:"",
|
|
(conn->bits.user_passwd && conn->allocptr.userpwd)?
|
|
conn->allocptr.userpwd:"",
|
|
(conn->bits.use_range && conn->allocptr.rangeline)?
|
|
conn->allocptr.rangeline:"",
|
|
(data->set.useragent && *data->set.useragent && conn->allocptr.uagent)?
|
|
conn->allocptr.uagent:"",
|
|
(conn->allocptr.cookie?conn->allocptr.cookie:""), /* Cookie: <data> */
|
|
(conn->allocptr.host?conn->allocptr.host:""), /* Host: host */
|
|
http->p_pragma?http->p_pragma:"",
|
|
http->p_accept?http->p_accept:"",
|
|
(data->set.encoding && *data->set.encoding && conn->allocptr.accept_encoding)?
|
|
conn->allocptr.accept_encoding:"", /* 08/28/02 jhrg */
|
|
(data->change.referer && conn->allocptr.ref)?conn->allocptr.ref:"" /* Referer: <data> <CRLF> */
|
|
);
|
|
|
|
if(co) {
|
|
int count=0;
|
|
struct Cookie *store=co;
|
|
/* now loop through all cookies that matched */
|
|
while(co) {
|
|
if(co->value && strlen(co->value)) {
|
|
if(0 == count) {
|
|
add_bufferf(req_buffer, "Cookie: ");
|
|
}
|
|
add_bufferf(req_buffer,
|
|
"%s%s=%s", count?"; ":"", co->name, co->value);
|
|
count++;
|
|
}
|
|
co = co->next; /* next cookie please */
|
|
}
|
|
if(count) {
|
|
add_buffer(req_buffer, "\r\n", 2);
|
|
}
|
|
Curl_cookie_freelist(store); /* free the cookie list */
|
|
co=NULL;
|
|
}
|
|
|
|
if(data->set.timecondition) {
|
|
struct tm *thistime;
|
|
|
|
/* Phil Karn (Fri, 13 Apr 2001) pointed out that the If-Modified-Since
|
|
* header family should have their times set in GMT as RFC2616 defines:
|
|
* "All HTTP date/time stamps MUST be represented in Greenwich Mean Time
|
|
* (GMT), without exception. For the purposes of HTTP, GMT is exactly
|
|
* equal to UTC (Coordinated Universal Time)." (see page 20 of RFC2616).
|
|
*/
|
|
|
|
#ifdef HAVE_GMTIME_R
|
|
/* thread-safe version */
|
|
struct tm keeptime;
|
|
thistime = (struct tm *)gmtime_r(&data->set.timevalue, &keeptime);
|
|
#else
|
|
thistime = gmtime(&data->set.timevalue);
|
|
#endif
|
|
if(NULL == thistime) {
|
|
failf(data, "localtime() failed!");
|
|
return CURLE_OUT_OF_MEMORY;
|
|
}
|
|
|
|
#ifdef HAVE_STRFTIME
|
|
/* format: "Tue, 15 Nov 1994 12:45:26 GMT" */
|
|
strftime(buf, BUFSIZE-1, "%a, %d %b %Y %H:%M:%S GMT", thistime);
|
|
#else
|
|
/* TODO: Right, we *could* write a replacement here */
|
|
strcpy(buf, "no strftime() support");
|
|
#endif
|
|
switch(data->set.timecondition) {
|
|
case CURL_TIMECOND_IFMODSINCE:
|
|
default:
|
|
add_bufferf(req_buffer,
|
|
"If-Modified-Since: %s\r\n", buf);
|
|
break;
|
|
case CURL_TIMECOND_IFUNMODSINCE:
|
|
add_bufferf(req_buffer,
|
|
"If-Unmodified-Since: %s\r\n", buf);
|
|
break;
|
|
case CURL_TIMECOND_LASTMOD:
|
|
add_bufferf(req_buffer,
|
|
"Last-Modified: %s\r\n", buf);
|
|
break;
|
|
}
|
|
}
|
|
|
|
while(headers) {
|
|
char *ptr = strchr(headers->data, ':');
|
|
if(ptr) {
|
|
/* we require a colon for this to be a true header */
|
|
|
|
ptr++; /* pass the colon */
|
|
while(*ptr && isspace((int)*ptr))
|
|
ptr++;
|
|
|
|
if(*ptr) {
|
|
/* only send this if the contents was non-blank */
|
|
|
|
add_bufferf(req_buffer, "%s\r\n", headers->data);
|
|
}
|
|
}
|
|
headers = headers->next;
|
|
}
|
|
|
|
switch(data->set.httpreq) {
|
|
|
|
case HTTPREQ_POST_FORM:
|
|
if(Curl_FormInit(&http->form, http->sendit)) {
|
|
failf(data, "Internal HTTP POST error!");
|
|
return CURLE_HTTP_POST_ERROR;
|
|
}
|
|
|
|
http->storefread = data->set.fread; /* backup */
|
|
http->in = data->set.in; /* backup */
|
|
|
|
data->set.fread = (curl_read_callback)
|
|
Curl_FormReader; /* set the read function to read from the
|
|
generated form data */
|
|
data->set.in = (FILE *)&http->form;
|
|
|
|
add_bufferf(req_buffer,
|
|
"Content-Length: %d\r\n", http->postsize);
|
|
|
|
if(!checkheaders(data, "Expect:")) {
|
|
/* if not disabled explicitly we add a Expect: 100-continue
|
|
to the headers which actually speeds up post operations (as
|
|
there is one packet coming back from the web server) */
|
|
add_bufferf(req_buffer,
|
|
"Expect: 100-continue\r\n");
|
|
data->set.expect100header = TRUE;
|
|
}
|
|
|
|
if(!checkheaders(data, "Content-Type:")) {
|
|
/* Get Content-Type: line from Curl_FormReadOneLine, which happens
|
|
to always be the first line. We can know this for sure since
|
|
we always build the formpost linked list the same way!
|
|
|
|
The Content-Type header line also contains the MIME boundary
|
|
string etc why disabling this header is likely to not make things
|
|
work, but we support it anyway.
|
|
*/
|
|
char contentType[256];
|
|
int linelength=0;
|
|
linelength = Curl_FormReadOneLine (contentType,
|
|
sizeof(contentType),
|
|
1,
|
|
(FILE *)&http->form);
|
|
if(linelength == -1) {
|
|
failf(data, "Could not get Content-Type header line!");
|
|
return CURLE_HTTP_POST_ERROR;
|
|
}
|
|
add_buffer(req_buffer, contentType, linelength);
|
|
}
|
|
|
|
/* make the request end in a true CRLF */
|
|
add_buffer(req_buffer, "\r\n", 2);
|
|
|
|
/* set upload size to the progress meter */
|
|
Curl_pgrsSetUploadSize(data, http->postsize);
|
|
|
|
/* fire away the whole request to the server */
|
|
result = add_buffer_send(conn->firstsocket, conn, req_buffer,
|
|
&data->info.request_size);
|
|
if(result)
|
|
failf(data, "Failed sending POST request");
|
|
else
|
|
/* setup variables for the upcoming transfer */
|
|
result = Curl_Transfer(conn, conn->firstsocket, -1, TRUE,
|
|
&http->readbytecount,
|
|
conn->firstsocket,
|
|
&http->writebytecount);
|
|
if(result) {
|
|
Curl_formclean(http->sendit); /* free that whole lot */
|
|
return result;
|
|
}
|
|
break;
|
|
|
|
case HTTPREQ_PUT: /* Let's PUT the data to the server! */
|
|
|
|
if(data->set.infilesize>0) {
|
|
add_bufferf(req_buffer,
|
|
"Content-Length: %d\r\n\r\n", /* file size */
|
|
data->set.infilesize );
|
|
}
|
|
else
|
|
add_bufferf(req_buffer, "\015\012");
|
|
|
|
/* set the upload size to the progress meter */
|
|
Curl_pgrsSetUploadSize(data, data->set.infilesize);
|
|
|
|
/* this sends the buffer and frees all the buffer resources */
|
|
result = add_buffer_send(conn->firstsocket, conn, req_buffer,
|
|
&data->info.request_size);
|
|
if(result)
|
|
failf(data, "Faied sending POST request");
|
|
else
|
|
/* prepare for transfer */
|
|
result = Curl_Transfer(conn, conn->firstsocket, -1, TRUE,
|
|
&http->readbytecount,
|
|
conn->firstsocket,
|
|
&http->writebytecount);
|
|
if(result)
|
|
return result;
|
|
break;
|
|
|
|
case HTTPREQ_POST:
|
|
/* this is the simple POST, using x-www-form-urlencoded style */
|
|
|
|
if(!checkheaders(data, "Content-Length:"))
|
|
/* we allow replacing this header, although it isn't very wise to
|
|
actually set your own */
|
|
add_bufferf(req_buffer,
|
|
"Content-Length: %d\r\n",
|
|
data->set.postfieldsize?
|
|
data->set.postfieldsize:
|
|
(data->set.postfields?strlen(data->set.postfields):0) );
|
|
|
|
if(!checkheaders(data, "Content-Type:"))
|
|
add_bufferf(req_buffer,
|
|
"Content-Type: application/x-www-form-urlencoded\r\n");
|
|
|
|
add_buffer(req_buffer, "\r\n", 2);
|
|
|
|
/* and here comes the actual data */
|
|
if(data->set.postfieldsize && data->set.postfields) {
|
|
add_buffer(req_buffer, data->set.postfields,
|
|
data->set.postfieldsize);
|
|
}
|
|
else if(data->set.postfields)
|
|
add_bufferf(req_buffer,
|
|
"%s",
|
|
data->set.postfields );
|
|
|
|
/* issue the request */
|
|
result = add_buffer_send(conn->firstsocket, conn, req_buffer,
|
|
&data->info.request_size);
|
|
|
|
if(result)
|
|
failf(data, "Failed sending HTTP POST request");
|
|
else
|
|
result =
|
|
Curl_Transfer(conn, conn->firstsocket, -1, TRUE, bytecount,
|
|
data->set.postfields?-1:conn->firstsocket,
|
|
data->set.postfields?NULL:&http->writebytecount);
|
|
break;
|
|
|
|
default:
|
|
add_buffer(req_buffer, "\r\n", 2);
|
|
|
|
/* issue the request */
|
|
result = add_buffer_send(conn->firstsocket, conn, req_buffer,
|
|
&data->info.request_size);
|
|
|
|
if(result)
|
|
failf(data, "Failed sending HTTP request");
|
|
else
|
|
/* HTTP GET/HEAD download: */
|
|
result = Curl_Transfer(conn, conn->firstsocket, -1, TRUE, bytecount,
|
|
-1, NULL); /* nothing to upload */
|
|
}
|
|
if(result)
|
|
return result;
|
|
} while (0); /* this is just a left-over from the multiple document download
|
|
attempts */
|
|
|
|
return CURLE_OK;
|
|
}
|
|
|
|
|
|
/*
|
|
* local variables:
|
|
* eval: (load-file "../curl-mode.el")
|
|
* end:
|
|
* vim600: fdm=marker
|
|
* vim: et sw=2 ts=2 sts=2 tw=78
|
|
*/
|
|
#endif
|