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added one assert and a few comments describing how the auth stuff works

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This commit is contained in:
Daniel Stenberg 2004-01-09 14:03:06 +00:00
parent 7237221108
commit 44031f32a1
1 changed files with 25 additions and 7 deletions

32
lib/http.c

@ -158,11 +158,19 @@ static CURLcode Curl_output_basic_proxy(struct connectdata *conn)
return CURLE_OK;
}
/*
* Curl_http_auth_act() checks what authentication methods that are available
* and decides which one (if any) to use. It will set 'newurl' if an auth
* metod was picked.
*/
void Curl_http_auth_act(struct connectdata *conn)
{
struct SessionHandle *data = conn->data;
if(data->state.authavail) {
/* 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(data->state.authavail & CURLAUTH_GSSNEGOTIATE)
data->state.authwant = CURLAUTH_GSSNEGOTIATE;
else if(data->state.authavail & CURLAUTH_DIGEST)
@ -341,6 +349,15 @@ CURLcode Curl_http_auth(struct connectdata *conn,
while(*start && isspace((int)*start))
start++;
/*
* Here we check if we want the specific single authentiction (using ==) and
* if we do, we initiate usage of it.
*
* If the provided authentication is wanted as one out of several accepted
* types (using &), we OR this authenticaion type to the authavail
* variable.
*/
#ifdef HAVE_GSSAPI
if (checkprefix("GSS-Negotiate", start) ||
checkprefix("Negotiate", start)) {
@ -1013,14 +1030,15 @@ CURLcode Curl_http_done(struct connectdata *conn)
void Curl_http_auth_stage(struct SessionHandle *data,
int stage)
{
if(stage == 401)
data->state.authwant = data->set.httpauth;
else if(stage == 407)
data->state.authwant = data->set.proxyauth;
else
return; /* bad input stage */
curlassert((stage == 401) || (stage == 407));
/* We set none, one or more bits for which authentication types we accept
for this stage. */
data->state.authwant = (stage == 401)?
data->set.httpauth:data->set.proxyauth;
data->state.authstage = stage;
data->state.authavail = CURLAUTH_NONE;
data->state.authavail = CURLAUTH_NONE; /* no type available yet */
}
CURLcode Curl_http(struct connectdata *conn)