mirror of
https://github.com/moparisthebest/curl
synced 2024-12-21 23:58:49 -05:00
Initial Digest support. At least partly working.
This commit is contained in:
Daniel Stenberg
parent
2356325592
commit
334d78cd18
@ -67,7 +67,8 @@ getpass.c netrc.c telnet.h getinfo.c getinfo.h transfer.c strequal.c \
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strequal.h easy.c security.h security.c krb4.c krb4.h memdebug.c \
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memdebug.h inet_ntoa_r.h http_chunks.c http_chunks.h strtok.c strtok.h \
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connect.c connect.h llist.c llist.h hash.c hash.h multi.c \
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content_encoding.c content_encoding.h share.c share.h
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content_encoding.c content_encoding.h share.c share.h http_digest.c \
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md5.c md5.h http_digest.h
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noinst_HEADERS = setup.h transfer.h
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29
lib/http.c
29
lib/http.c
@ -89,6 +89,7 @@
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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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#include "http_digest.h"
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#define _MPRINTF_REPLACE /* use our functions only */
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#include <curl/mprintf.h>
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@ -627,6 +628,7 @@ CURLcode Curl_http(struct connectdata *conn)
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char *host = conn->name;
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const char *te = ""; /* tranfer-encoding */
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char *ptr;
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unsigned char *request;
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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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@ -648,6 +650,12 @@ CURLcode Curl_http(struct connectdata *conn)
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data->set.httpreq = HTTPREQ_PUT;
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}
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request = data->set.customrequest?data->set.customrequest:
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(data->set.no_body?"HEAD":
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((HTTPREQ_POST == data->set.httpreq) ||
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(HTTPREQ_POST_FORM == data->set.httpreq))?"POST":
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(HTTPREQ_PUT == data->set.httpreq)?"PUT":"GET");
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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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@ -657,7 +665,12 @@ CURLcode Curl_http(struct connectdata *conn)
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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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if(data->state.digest.nonce) {
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result = Curl_output_digest(conn, request, (unsigned char *)ppath);
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if(result)
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return result;
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}
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else 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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@ -902,7 +915,7 @@ CURLcode Curl_http(struct connectdata *conn)
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/* add the main request stuff */
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add_bufferf(req_buffer,
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"%s " /* GET/HEAD/POST/PUT */
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"%s HTTP/%s\r\n" /* path */
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"%s HTTP/%s\r\n" /* path + HTTP version */
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"%s" /* proxyuserpwd */
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"%s" /* userpwd */
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"%s" /* range */
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@ -915,16 +928,12 @@ CURLcode Curl_http(struct connectdata *conn)
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"%s" /* referer */
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"%s",/* transfer-encoding */
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data->set.customrequest?data->set.customrequest:
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(data->set.no_body?"HEAD":
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((HTTPREQ_POST == data->set.httpreq) ||
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(HTTPREQ_POST_FORM == data->set.httpreq))?"POST":
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(HTTPREQ_PUT == data->set.httpreq)?"PUT":"GET"),
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ppath, httpstring,
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request,
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ppath,
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httpstring,
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(conn->bits.proxy_user_passwd &&
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conn->allocptr.proxyuserpwd)?conn->allocptr.proxyuserpwd:"",
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(conn->bits.user_passwd && conn->allocptr.userpwd)?
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conn->allocptr.userpwd:"",
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conn->allocptr.userpwd?conn->allocptr.userpwd:"",
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(conn->bits.use_range && conn->allocptr.rangeline)?
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conn->allocptr.rangeline:"",
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(data->set.useragent && *data->set.useragent && conn->allocptr.uagent)?
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210
lib/http_digest.c
Normal file
210
lib/http_digest.c
Normal file
@ -0,0 +1,210 @@
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/***************************************************************************
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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 - 2003, 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 "urldata.h"
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#include "sendf.h"
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#include "strequal.h"
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#include "md5.h"
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#include "http_digest.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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/* Test example header:
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WWW-Authenticate: Digest realm="testrealm", nonce="1053604598"
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*/
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CURLdigest Curl_input_digest(struct connectdata *conn,
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char *header) /* rest of the www-authenticate:
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header */
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{
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bool more = TRUE;
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struct SessionHandle *data=conn->data;
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/* skip initial whitespaces */
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while(*header && isspace((int)*header))
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header++;
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if(checkprefix("Digest", header)) {
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header += strlen("Digest");
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data->state.digest.algo = CURLDIGESTALGO_MD5; /* default algorithm */
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while(more) {
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char value[32];
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char content[128];
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int totlen=0;
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while(*header && isspace((int)*header))
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header++;
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/* how big can these strings be? */
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if(2 == sscanf(header, "%31[^=]=\"%127[^\"]\"",
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value, content)) {
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if(strequal(value, "nonce")) {
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data->state.digest.nonce = strdup(content);
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}
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else if(strequal(value, "cnonce")) {
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data->state.digest.cnonce = strdup(content);
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}
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else if(strequal(value, "realm")) {
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data->state.digest.realm = strdup(content);
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}
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else if(strequal(value, "algorithm")) {
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if(strequal(content, "MD5-sess"))
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data->state.digest.algo = CURLDIGESTALGO_MD5SESS;
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/* else, remain using the default md5 */
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}
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else {
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/* unknown specifier, ignore it! */
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}
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totlen = strlen(value)+strlen(content)+3;
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}
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else
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break; /* we're done here */
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header += totlen;
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if(',' == *header)
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/* allow the list to be comma-separated */
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header++;
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}
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}
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else
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/* else not a digest, get out */
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return CURLDIGEST_NONE;
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return CURLDIGEST_FINE;
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}
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/* convert md5 chunk to RFC2617 (section 3.1.3) -suitable ascii string*/
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static void md5_to_ascii(unsigned char *source, /* 16 bytes */
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unsigned char *dest) /* 33 bytes */
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{
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int i;
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for(i=0; i<16; i++)
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sprintf((char *)&dest[i*2], "%02x", source[i]);
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}
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CURLcode Curl_output_digest(struct connectdata *conn,
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unsigned char *request,
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unsigned char *uripath)
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{
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/* We have a Digest setup for this, use it!
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Now, to get all the details for this sorted out, I must urge you dear friend
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to read up on the RFC2617 section 3.2.2, */
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unsigned char md5buf[16]; /* 16 bytes/128 bits */
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unsigned char ha1[33]; /* 32 digits and 1 zero byte */
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unsigned char ha2[33];
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unsigned char request_digest[33];
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char *md5this;
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struct SessionHandle *data = conn->data;
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/*
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if the algorithm is "MD5" or unspecified (which then defaults to MD5):
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A1 = unq(username-value) ":" unq(realm-value) ":" passwd
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if the algorithm is "MD5-sess" then:
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A1 = H( unq(username-value) ":" unq(realm-value) ":" passwd )
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":" unq(nonce-value) ":" unq(cnonce-value)
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*/
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if(data->state.digest.algo == CURLDIGESTALGO_MD5SESS) {
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md5this = aprintf("%s:%s:%s:%s:%s",
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data->state.user,
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data->state.digest.realm,
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data->state.passwd,
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data->state.digest.nonce,
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data->state.digest.cnonce);
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}
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else {
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md5this = aprintf("%s:%s:%s",
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data->state.user,
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data->state.digest.realm,
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data->state.passwd);
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}
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Curl_md5it(md5buf, md5this);
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free(md5this); /* free this again */
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md5_to_ascii(md5buf, ha1);
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/*
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A2 = Method ":" digest-uri-value
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(The "Method" value is the HTTP request method as specified in section
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5.1.1 of RFC 2616)
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*/
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md5this = aprintf("%s:%s", request, uripath);
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Curl_md5it(md5buf, md5this);
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free(md5this); /* free this again */
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md5_to_ascii(md5buf, ha2);
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md5this = aprintf("%s:%s:%s",
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ha1,
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data->state.digest.nonce,
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ha2);
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Curl_md5it(md5buf, md5this);
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free(md5this); /* free this again */
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md5_to_ascii(md5buf, request_digest);
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/* for test case 64 (snooped from a Mozilla 1.3a request)
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Authorization: Digest username="testuser", realm="testrealm", \
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nonce="1053604145", uri="/64", response="c55f7f30d83d774a3d2dcacf725abaca"
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*/
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conn->allocptr.userpwd =
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aprintf( "Authorization: Digest "
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"username=\"%s\", "
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"realm=\"%s\", "
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"nonce=\"%s\", "
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"uri=\"%s\", "
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"response=\"%s\"\r\n",
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data->state.user,
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data->state.digest.realm,
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data->state.digest.nonce,
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uripath, /* this is the PATH part of the URL */
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request_digest );
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return CURLE_OK;
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}
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#endif
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43
lib/http_digest.h
Normal file
43
lib/http_digest.h
Normal file
@ -0,0 +1,43 @@
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/***************************************************************************
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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 - 2003, 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
|
||||
* 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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typedef enum {
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CURLDIGEST_NONE, /* not a digest */
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CURLDIGEST_BAD, /* a digest, but one we don't like */
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CURLDIGEST_FINE, /* a digest we act on */
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CURLDIGEST_LAST /* last entry in this enum, don't use */
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} CURLdigest;
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enum {
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CURLDIGESTALGO_MD5,
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CURLDIGESTALGO_MD5SESS
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};
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/* this is for digest header input */
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CURLdigest Curl_input_digest(struct connectdata *conn, char *header);
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/* this is for creating digest header output */
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CURLcode Curl_output_digest(struct connectdata *conn,
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unsigned char *request,
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unsigned char *uripath);
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320
lib/md5.c
Normal file
320
lib/md5.c
Normal file
@ -0,0 +1,320 @@
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/* Copyright (C) 1991-2, RSA Data Security, Inc. Created 1991. All
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rights reserved.
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License to copy and use this software is granted provided that it
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is identified as the "RSA Data Security, Inc. MD5 Message-Digest
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Algorithm" in all material mentioning or referencing this software
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or this function.
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License is also granted to make and use derivative works provided
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that such works are identified as "derived from the RSA Data
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Security, Inc. MD5 Message-Digest Algorithm" in all material
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mentioning or referencing the derived work.
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RSA Data Security, Inc. makes no representations concerning either
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the merchantability of this software or the suitability of this
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software for any particular purpose. It is provided "as is"
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without express or implied warranty of any kind.
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These notices must be retained in any copies of any part of this
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documentation and/or software.
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*/
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#include <string.h>
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/* UINT2 defines a two byte word */
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typedef unsigned short int UINT2;
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/* UINT4 defines a four byte word */
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typedef unsigned long int UINT4;
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/* MD5 context. */
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struct md5_ctx {
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UINT4 state[4]; /* state (ABCD) */
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UINT4 count[2]; /* number of bits, modulo 2^64 (lsb first) */
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unsigned char buffer[64]; /* input buffer */
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};
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static void MD5Init(struct md5_ctx *);
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static void MD5Update(struct md5_ctx *, unsigned char *, unsigned int);
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static void MD5Final(unsigned char [16], struct md5_ctx *);
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/* Constants for MD5Transform routine.
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*/
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#define S11 7
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#define S12 12
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#define S13 17
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#define S14 22
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#define S21 5
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#define S22 9
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#define S23 14
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#define S24 20
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#define S31 4
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#define S32 11
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#define S33 16
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#define S34 23
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#define S41 6
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#define S42 10
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#define S43 15
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#define S44 21
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static void MD5Transform(UINT4 [4], unsigned char [64]);
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static void Encode(unsigned char *, UINT4 *, unsigned int);
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static void Decode(UINT4 *, unsigned char *, unsigned int);
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#define MD5_memcpy(dst,src,len) memcpy(dst,src,len)
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#define MD5_memset(dst,val,len) memset(dst,val,len)
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static unsigned char PADDING[64] = {
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0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
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};
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/* F, G, H and I are basic MD5 functions.
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*/
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#define F(x, y, z) (((x) & (y)) | ((~x) & (z)))
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#define G(x, y, z) (((x) & (z)) | ((y) & (~z)))
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#define H(x, y, z) ((x) ^ (y) ^ (z))
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#define I(x, y, z) ((y) ^ ((x) | (~z)))
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/* ROTATE_LEFT rotates x left n bits.
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*/
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#define ROTATE_LEFT(x, n) (((x) << (n)) | ((x) >> (32-(n))))
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/* FF, GG, HH, and II transformations for rounds 1, 2, 3, and 4.
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Rotation is separate from addition to prevent recomputation.
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*/
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#define FF(a, b, c, d, x, s, ac) { \
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(a) += F ((b), (c), (d)) + (x) + (UINT4)(ac); \
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(a) = ROTATE_LEFT ((a), (s)); \
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(a) += (b); \
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}
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#define GG(a, b, c, d, x, s, ac) { \
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(a) += G ((b), (c), (d)) + (x) + (UINT4)(ac); \
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(a) = ROTATE_LEFT ((a), (s)); \
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(a) += (b); \
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}
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#define HH(a, b, c, d, x, s, ac) { \
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(a) += H ((b), (c), (d)) + (x) + (UINT4)(ac); \
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(a) = ROTATE_LEFT ((a), (s)); \
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(a) += (b); \
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}
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#define II(a, b, c, d, x, s, ac) { \
|
||||
(a) += I ((b), (c), (d)) + (x) + (UINT4)(ac); \
|
||||
(a) = ROTATE_LEFT ((a), (s)); \
|
||||
(a) += (b); \
|
||||
}
|
||||
|
||||
/* MD5 initialization. Begins an MD5 operation, writing a new context.
|
||||
*/
|
||||
static void MD5Init (context)
|
||||
struct md5_ctx *context; /* context */
|
||||
{
|
||||
context->count[0] = context->count[1] = 0;
|
||||
/* Load magic initialization constants.
|
||||
*/
|
||||
context->state[0] = 0x67452301;
|
||||
context->state[1] = 0xefcdab89;
|
||||
context->state[2] = 0x98badcfe;
|
||||
context->state[3] = 0x10325476;
|
||||
}
|
||||
|
||||
/* MD5 block update operation. Continues an MD5 message-digest
|
||||
operation, processing another message block, and updating the
|
||||
context.
|
||||
*/
|
||||
static void MD5Update (context, input, inputLen)
|
||||
struct md5_ctx *context; /* context */
|
||||
unsigned char *input; /* input block */
|
||||
unsigned int inputLen; /* length of input block */
|
||||
{
|
||||
unsigned int i, index, partLen;
|
||||
|
||||
/* Compute number of bytes mod 64 */
|
||||
index = (unsigned int)((context->count[0] >> 3) & 0x3F);
|
||||
|
||||
/* Update number of bits */
|
||||
if ((context->count[0] += ((UINT4)inputLen << 3))
|
||||
< ((UINT4)inputLen << 3))
|
||||
context->count[1]++;
|
||||
context->count[1] += ((UINT4)inputLen >> 29);
|
||||
|
||||
partLen = 64 - index;
|
||||
|
||||
/* Transform as many times as possible. */
|
||||
if (inputLen >= partLen) {
|
||||
MD5_memcpy((void *)&context->buffer[index], (void *)input, partLen);
|
||||
MD5Transform(context->state, context->buffer);
|
||||
|
||||
for (i = partLen; i + 63 < inputLen; i += 64)
|
||||
MD5Transform(context->state, &input[i]);
|
||||
|
||||
index = 0;
|
||||
}
|
||||
else
|
||||
i = 0;
|
||||
|
||||
/* Buffer remaining input */
|
||||
MD5_memcpy((void *)&context->buffer[index], (void *)&input[i],
|
||||
inputLen-i);
|
||||
}
|
||||
|
||||
/* MD5 finalization. Ends an MD5 message-digest operation, writing the
|
||||
the message digest and zeroizing the context.
|
||||
*/
|
||||
static void MD5Final (digest, context)
|
||||
unsigned char digest[16]; /* message digest */
|
||||
struct md5_ctx *context; /* context */
|
||||
{
|
||||
unsigned char bits[8];
|
||||
unsigned int index, padLen;
|
||||
|
||||
/* Save number of bits */
|
||||
Encode (bits, context->count, 8);
|
||||
|
||||
/* Pad out to 56 mod 64. */
|
||||
index = (unsigned int)((context->count[0] >> 3) & 0x3f);
|
||||
padLen = (index < 56) ? (56 - index) : (120 - index);
|
||||
MD5Update (context, PADDING, padLen);
|
||||
|
||||
/* Append length (before padding) */
|
||||
MD5Update (context, bits, 8);
|
||||
|
||||
/* Store state in digest */
|
||||
Encode (digest, context->state, 16);
|
||||
|
||||
/* Zeroize sensitive information. */
|
||||
MD5_memset ((void *)context, 0, sizeof (*context));
|
||||
}
|
||||
|
||||
/* MD5 basic transformation. Transforms state based on block. */
|
||||
static void MD5Transform (state, block)
|
||||
UINT4 state[4];
|
||||
unsigned char block[64];
|
||||
{
|
||||
UINT4 a = state[0], b = state[1], c = state[2], d = state[3], x[16];
|
||||
|
||||
Decode (x, block, 64);
|
||||
|
||||
/* Round 1 */
|
||||
FF (a, b, c, d, x[ 0], S11, 0xd76aa478); /* 1 */
|
||||
FF (d, a, b, c, x[ 1], S12, 0xe8c7b756); /* 2 */
|
||||
FF (c, d, a, b, x[ 2], S13, 0x242070db); /* 3 */
|
||||
FF (b, c, d, a, x[ 3], S14, 0xc1bdceee); /* 4 */
|
||||
FF (a, b, c, d, x[ 4], S11, 0xf57c0faf); /* 5 */
|
||||
FF (d, a, b, c, x[ 5], S12, 0x4787c62a); /* 6 */
|
||||
FF (c, d, a, b, x[ 6], S13, 0xa8304613); /* 7 */
|
||||
FF (b, c, d, a, x[ 7], S14, 0xfd469501); /* 8 */
|
||||
FF (a, b, c, d, x[ 8], S11, 0x698098d8); /* 9 */
|
||||
FF (d, a, b, c, x[ 9], S12, 0x8b44f7af); /* 10 */
|
||||
FF (c, d, a, b, x[10], S13, 0xffff5bb1); /* 11 */
|
||||
FF (b, c, d, a, x[11], S14, 0x895cd7be); /* 12 */
|
||||
FF (a, b, c, d, x[12], S11, 0x6b901122); /* 13 */
|
||||
FF (d, a, b, c, x[13], S12, 0xfd987193); /* 14 */
|
||||
FF (c, d, a, b, x[14], S13, 0xa679438e); /* 15 */
|
||||
FF (b, c, d, a, x[15], S14, 0x49b40821); /* 16 */
|
||||
|
||||
/* Round 2 */
|
||||
GG (a, b, c, d, x[ 1], S21, 0xf61e2562); /* 17 */
|
||||
GG (d, a, b, c, x[ 6], S22, 0xc040b340); /* 18 */
|
||||
GG (c, d, a, b, x[11], S23, 0x265e5a51); /* 19 */
|
||||
GG (b, c, d, a, x[ 0], S24, 0xe9b6c7aa); /* 20 */
|
||||
GG (a, b, c, d, x[ 5], S21, 0xd62f105d); /* 21 */
|
||||
GG (d, a, b, c, x[10], S22, 0x2441453); /* 22 */
|
||||
GG (c, d, a, b, x[15], S23, 0xd8a1e681); /* 23 */
|
||||
GG (b, c, d, a, x[ 4], S24, 0xe7d3fbc8); /* 24 */
|
||||
GG (a, b, c, d, x[ 9], S21, 0x21e1cde6); /* 25 */
|
||||
GG (d, a, b, c, x[14], S22, 0xc33707d6); /* 26 */
|
||||
GG (c, d, a, b, x[ 3], S23, 0xf4d50d87); /* 27 */
|
||||
GG (b, c, d, a, x[ 8], S24, 0x455a14ed); /* 28 */
|
||||
GG (a, b, c, d, x[13], S21, 0xa9e3e905); /* 29 */
|
||||
GG (d, a, b, c, x[ 2], S22, 0xfcefa3f8); /* 30 */
|
||||
GG (c, d, a, b, x[ 7], S23, 0x676f02d9); /* 31 */
|
||||
GG (b, c, d, a, x[12], S24, 0x8d2a4c8a); /* 32 */
|
||||
|
||||
/* Round 3 */
|
||||
HH (a, b, c, d, x[ 5], S31, 0xfffa3942); /* 33 */
|
||||
HH (d, a, b, c, x[ 8], S32, 0x8771f681); /* 34 */
|
||||
HH (c, d, a, b, x[11], S33, 0x6d9d6122); /* 35 */
|
||||
HH (b, c, d, a, x[14], S34, 0xfde5380c); /* 36 */
|
||||
HH (a, b, c, d, x[ 1], S31, 0xa4beea44); /* 37 */
|
||||
HH (d, a, b, c, x[ 4], S32, 0x4bdecfa9); /* 38 */
|
||||
HH (c, d, a, b, x[ 7], S33, 0xf6bb4b60); /* 39 */
|
||||
HH (b, c, d, a, x[10], S34, 0xbebfbc70); /* 40 */
|
||||
HH (a, b, c, d, x[13], S31, 0x289b7ec6); /* 41 */
|
||||
HH (d, a, b, c, x[ 0], S32, 0xeaa127fa); /* 42 */
|
||||
HH (c, d, a, b, x[ 3], S33, 0xd4ef3085); /* 43 */
|
||||
HH (b, c, d, a, x[ 6], S34, 0x4881d05); /* 44 */
|
||||
HH (a, b, c, d, x[ 9], S31, 0xd9d4d039); /* 45 */
|
||||
HH (d, a, b, c, x[12], S32, 0xe6db99e5); /* 46 */
|
||||
HH (c, d, a, b, x[15], S33, 0x1fa27cf8); /* 47 */
|
||||
HH (b, c, d, a, x[ 2], S34, 0xc4ac5665); /* 48 */
|
||||
|
||||
/* Round 4 */
|
||||
II (a, b, c, d, x[ 0], S41, 0xf4292244); /* 49 */
|
||||
II (d, a, b, c, x[ 7], S42, 0x432aff97); /* 50 */
|
||||
II (c, d, a, b, x[14], S43, 0xab9423a7); /* 51 */
|
||||
II (b, c, d, a, x[ 5], S44, 0xfc93a039); /* 52 */
|
||||
II (a, b, c, d, x[12], S41, 0x655b59c3); /* 53 */
|
||||
II (d, a, b, c, x[ 3], S42, 0x8f0ccc92); /* 54 */
|
||||
II (c, d, a, b, x[10], S43, 0xffeff47d); /* 55 */
|
||||
II (b, c, d, a, x[ 1], S44, 0x85845dd1); /* 56 */
|
||||
II (a, b, c, d, x[ 8], S41, 0x6fa87e4f); /* 57 */
|
||||
II (d, a, b, c, x[15], S42, 0xfe2ce6e0); /* 58 */
|
||||
II (c, d, a, b, x[ 6], S43, 0xa3014314); /* 59 */
|
||||
II (b, c, d, a, x[13], S44, 0x4e0811a1); /* 60 */
|
||||
II (a, b, c, d, x[ 4], S41, 0xf7537e82); /* 61 */
|
||||
II (d, a, b, c, x[11], S42, 0xbd3af235); /* 62 */
|
||||
II (c, d, a, b, x[ 2], S43, 0x2ad7d2bb); /* 63 */
|
||||
II (b, c, d, a, x[ 9], S44, 0xeb86d391); /* 64 */
|
||||
|
||||
state[0] += a;
|
||||
state[1] += b;
|
||||
state[2] += c;
|
||||
state[3] += d;
|
||||
|
||||
/* Zeroize sensitive information. */
|
||||
MD5_memset ((void *)x, 0, sizeof (x));
|
||||
}
|
||||
|
||||
/* Encodes input (UINT4) into output (unsigned char). Assumes len is
|
||||
a multiple of 4.
|
||||
*/
|
||||
static void Encode (unsigned char *output,
|
||||
UINT4 *input,
|
||||
unsigned int len)
|
||||
{
|
||||
unsigned int i, j;
|
||||
|
||||
for (i = 0, j = 0; j < len; i++, j += 4) {
|
||||
output[j] = (unsigned char)(input[i] & 0xff);
|
||||
output[j+1] = (unsigned char)((input[i] >> 8) & 0xff);
|
||||
output[j+2] = (unsigned char)((input[i] >> 16) & 0xff);
|
||||
output[j+3] = (unsigned char)((input[i] >> 24) & 0xff);
|
||||
}
|
||||
}
|
||||
|
||||
/* Decodes input (unsigned char) into output (UINT4). Assumes len is
|
||||
a multiple of 4.
|
||||
*/
|
||||
static void Decode (UINT4 *output,
|
||||
unsigned char *input,
|
||||
unsigned int len)
|
||||
{
|
||||
unsigned int i, j;
|
||||
|
||||
for (i = 0, j = 0; j < len; i++, j += 4)
|
||||
output[i] = ((UINT4)input[j]) | (((UINT4)input[j+1]) << 8) |
|
||||
(((UINT4)input[j+2]) << 16) | (((UINT4)input[j+3]) << 24);
|
||||
}
|
||||
|
||||
void Curl_md5it(unsigned char *outbuffer, /* 16 bytes */
|
||||
unsigned char *input)
|
||||
{
|
||||
struct md5_ctx ctx;
|
||||
MD5Init(&ctx);
|
||||
MD5Update(&ctx, input, strlen((char *)input));
|
||||
MD5Final(outbuffer, &ctx);
|
||||
}
|
||||
4
lib/md5.h
Normal file
4
lib/md5.h
Normal file
@ -0,0 +1,4 @@
|
||||
|
||||
void Curl_md5it(unsigned char *output,
|
||||
unsigned char *input);
|
||||
|
||||
@ -95,6 +95,7 @@
|
||||
#include "url.h"
|
||||
#include "getinfo.h"
|
||||
#include "ssluse.h"
|
||||
#include "http_digest.h"
|
||||
|
||||
#define _MPRINTF_REPLACE /* use our functions only */
|
||||
#include <curl/mprintf.h>
|
||||
@ -701,9 +702,21 @@ CURLcode Curl_readwrite(struct connectdata *conn,
|
||||
if(data->set.get_filetime)
|
||||
data->info.filetime = k->timeofdoc;
|
||||
}
|
||||
else if(checkprefix("WWW-Authenticate:", k->p) &&
|
||||
(401 == k->httpcode) &&
|
||||
1 /* TODO: replace with a check for Digest authentication
|
||||
activated */) {
|
||||
CURLdigest dig = Curl_input_digest(conn, k->p+
|
||||
strlen("WWW-Authenticate:"));
|
||||
if(CURLDIGEST_FINE == dig) {
|
||||
/* We act on it. Store our new url, which happens to be
|
||||
the same one we already use! */
|
||||
conn->newurl = strdup(data->change.url); /* clone string */
|
||||
}
|
||||
}
|
||||
else if ((k->httpcode >= 300 && k->httpcode < 400) &&
|
||||
(data->set.http_follow_location) &&
|
||||
checkprefix("Location:", k->p)) {
|
||||
if(data->set.http_follow_location) {
|
||||
/* this is the URL that the server advices us to get instead */
|
||||
char *ptr;
|
||||
char *start=k->p;
|
||||
@ -727,6 +740,14 @@ CURLcode Curl_readwrite(struct connectdata *conn,
|
||||
*ptr = backup; /* restore ending letter */
|
||||
}
|
||||
}
|
||||
#if 0 /* for consideration */
|
||||
else {
|
||||
/* This is a Location: but we have not been instructed to
|
||||
follow it */
|
||||
infof(data, "We ignore this location header as instructed\n");
|
||||
}
|
||||
#endif
|
||||
}
|
||||
|
||||
/*
|
||||
* End of header-checks. Write them to the client.
|
||||
@ -1554,8 +1575,15 @@ CURLcode Curl_follow(struct SessionHandle *data,
|
||||
* differently based on exactly what return code there was.
|
||||
* Discussed on the curl mailing list and posted about on the 26th
|
||||
* of January 2001.
|
||||
*
|
||||
* News from 7.10.6: we can also get here on a 401, in case we need to
|
||||
* do Digest authentication.
|
||||
*/
|
||||
switch(data->info.httpcode) {
|
||||
case 401:
|
||||
/* Act on a digest authentication, we keep on moving and do the
|
||||
Authorization: Digest header in the HTTP request code snippet */
|
||||
break;
|
||||
case 300: /* Multiple Choices */
|
||||
case 306: /* Not used */
|
||||
case 307: /* Temporary Redirect */
|
||||
|
||||
@ -152,6 +152,13 @@ struct curl_ssl_session {
|
||||
struct ssl_config_data ssl_config; /* setup for this session */
|
||||
};
|
||||
|
||||
/* Struct used for Digest challenge-response authentication */
|
||||
struct digestdata {
|
||||
char *nonce;
|
||||
char *cnonce;
|
||||
char *realm;
|
||||
int algo;
|
||||
};
|
||||
|
||||
/****************************************************************************
|
||||
* HTTP unique setup
|
||||
@ -327,7 +334,6 @@ struct Curl_transfer_keeper {
|
||||
and we're uploading the last chunk */
|
||||
};
|
||||
|
||||
|
||||
/*
|
||||
* The connectdata struct contains all fields and variables that should be
|
||||
* unique for an entire connection.
|
||||
@ -619,6 +625,8 @@ struct UrlState {
|
||||
#endif
|
||||
bool allow_port; /* Is set.use_port allowed to take effect or not. This
|
||||
is always set TRUE when curl_easy_perform() is called. */
|
||||
|
||||
struct digestdata digest;
|
||||
};
|
||||
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user