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Fix the auth code to enable us to i.e set DIGEST and then find out that the 

server doesn't require any auth at all and then we just continue nicely. We
now have an extra bit in the connection struct named 'authprobe' that is TRUE
when doing pure "HTTP authentication probing".
This commit is contained in:
Daniel Stenberg 2004-06-15 08:45:22 +00:00
parent 5e65d48ffa
commit 80a1e972fc
3 changed files with 47 additions and 39 deletions
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66
lib/http.c
View File

@ -168,29 +168,25 @@ static CURLcode Curl_output_basic(struct connectdata *conn, bool proxy)
static bool pickoneauth(struct auth *pick)
{
bool picked;
if(pick->avail) {
/* only deal with authentication we want */
long avail = pick->avail & pick->want;
picked = TRUE;
/* only deal with authentication we want */
long avail = pick->avail & pick->want;
picked = TRUE;
/* The order of these checks is highly relevant, as this will be the order
of preference in case of the existance of multiple accepted types. */
if(avail & CURLAUTH_GSSNEGOTIATE)
pick->picked = CURLAUTH_GSSNEGOTIATE;
else if(avail & CURLAUTH_DIGEST)
pick->picked = CURLAUTH_DIGEST;
else if(avail & CURLAUTH_NTLM)
pick->picked = CURLAUTH_NTLM;
else if(avail & CURLAUTH_BASIC)
pick->picked = CURLAUTH_BASIC;
else {
pick->picked = CURLAUTH_NONE; /* none was picked clear it */
picked = FALSE;
}
pick->avail = CURLAUTH_NONE; /* clear it here */
/* The order of these checks is highly relevant, as this will be the order
of preference in case of the existance of multiple accepted types. */
if(avail & CURLAUTH_GSSNEGOTIATE)
pick->picked = CURLAUTH_GSSNEGOTIATE;
else if(avail & CURLAUTH_DIGEST)
pick->picked = CURLAUTH_DIGEST;
else if(avail & CURLAUTH_NTLM)
pick->picked = CURLAUTH_NTLM;
else if(avail & CURLAUTH_BASIC)
pick->picked = CURLAUTH_BASIC;
else {
pick->picked = CURLAUTH_PICKNONE; /* we select to use nothing */
picked = FALSE;
}
else
return FALSE;
pick->avail = CURLAUTH_NONE; /* clear it here */
return picked;
}
@ -212,14 +208,16 @@ CURLcode Curl_http_auth_act(struct connectdata *conn)
if(data->state.authproblem)
return data->set.http_fail_on_error?CURLE_HTTP_RETURNED_ERROR:CURLE_OK;
if(conn->bits.user_passwd) {
if(conn->bits.user_passwd &&
((conn->keep.httpcode == 401) || conn->bits.authprobe)) {
pickhost = pickoneauth(&data->state.authhost);
if(!pickhost && (conn->keep.httpcode == 401))
if(!pickhost)
data->state.authproblem = TRUE;
}
if(conn->bits.proxy_user_passwd) {
if(conn->bits.proxy_user_passwd &&
((conn->keep.httpcode == 407) || conn->bits.authprobe) ) {
pickproxy = pickoneauth(&data->state.authproxy);
if(!pickproxy && (conn->keep.httpcode == 407))
if(!pickproxy)
data->state.authproblem = TRUE;
}
@ -283,21 +281,17 @@ Curl_http_output_auth(struct connectdata *conn,
return CURLE_OK; /* no authentication with no user or password */
}
if(data->state.authhost.want &&
!data->state.authhost.picked) {
if(data->state.authhost.want && !data->state.authhost.picked)
/* The app has selected one or more methods, but none has been picked
so far by a server round-trip. Then we set the picked one to the
want one, and if this is one single bit it'll be used instantly. */
data->state.authhost.picked = data->state.authhost.want;
}
if(data->state.authproxy.want &&
!data->state.authproxy.picked) {
/* The app has selected one or more methods, but none has been picked
so far by a server round-trip. Then we set the picked one to the
want one, and if this is one single bit it'll be used instantly. */
if(data->state.authproxy.want && !data->state.authproxy.picked)
/* The app has selected one or more methods, but none has been picked so
far by a proxy round-trip. Then we set the picked one to the want one,
and if this is one single bit it'll be used instantly. */
data->state.authproxy.picked = data->state.authproxy.want;
}
/* To prevent the user+password to get sent to other than the original
host due to a location-follow, we do some weirdo checks here */
@ -1313,7 +1307,11 @@ CURLcode Curl_http(struct connectdata *conn)
httpreq = HTTPREQ_HEAD;
request = (char *)"HEAD";
conn->bits.no_body = TRUE;
conn->bits.authprobe = TRUE; /* this is a request done to probe for
authentication methods */
}
else
conn->bits.authprobe = FALSE;
Curl_safefree(conn->allocptr.ref);
if(data->change.referer && !checkheaders(data, "Referer:"))

17
lib/http.h
View File

@ -2,10 +2,10 @@
#define __HTTP_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2004, Daniel Stenberg, <daniel@haxx.se>, et al.
@ -13,7 +13,7 @@
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at http://curl.haxx.se/docs/copyright.html.
*
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
@ -50,5 +50,12 @@ CURLcode Curl_http_input_auth(struct connectdata *conn,
CURLcode Curl_http_auth_act(struct connectdata *conn);
int Curl_http_should_fail(struct connectdata *conn);
/* If only the PICKNONE bit is set, there has been a round-trip and we
selected to use no auth at all. Ie, we actively select no auth, as opposed
to not having one selected. The other CURLAUTH_* defines are present in the
public curl/curl.h header. */
#define CURLAUTH_PICKNONE (1<<30) /* don't use auth */
#endif
#endif

3
lib/urldata.h
View File

@ -319,6 +319,9 @@ struct ConnectBits {
This is implicit when SSL-protocols are used through
proxies, but can also be enabled explicitly by
apps */
bool authprobe; /* set TRUE when this transfer is done to probe for auth
types, as when asking for "any" type when speaking
HTTP */
};
struct hostname {