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NTLM: work with unicode

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Rewritten code from a patch brought by Matteo Rocco.
This commit is contained in:
Daniel Stenberg 2011-04-20 16:08:28 +02:00
parent c985a8df51
commit f20b4606de
1 changed files with 34 additions and 10 deletions
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44
lib/http_ntlm.c
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@ -658,6 +658,18 @@ ntlm_sspi_cleanup(struct ntlmdata *ntlm)
#define HOSTNAME_MAX 1024
/* copy the source to the destination and fill in zeroes in every
other destination byte! */
static void unicodecpy(unsigned char *dest,
const char *src, size_t length)
{
size_t i;
for(i=0; i<length; i++) {
dest[2*i] = (unsigned char)src[i];
dest[2*i+1] = '\0';
}
}
/* this is for creating ntlm header output */
CURLcode Curl_output_ntlm(struct connectdata *conn,
bool proxy)
@ -972,6 +984,7 @@ CURLcode Curl_output_ntlm(struct connectdata *conn,
int ntrespoff;
unsigned char ntresp[24]; /* fixed-size */
#endif
bool unicode = ntlm->flags & NTLMFLAG_NEGOTIATE_UNICODE;
size_t useroff;
const char *user;
size_t userlen;
@ -1004,6 +1017,12 @@ CURLcode Curl_output_ntlm(struct connectdata *conn,
hostlen = strlen(host);
}
if(unicode) {
domlen = domlen * 2;
userlen = userlen * 2;
hostlen = hostlen * 2;
}
#if USE_NTLM2SESSION
/* We don't support NTLM2 if we don't have USE_NTRESPONSES */
if(ntlm->flags & NTLMFLAG_NEGOTIATE_NTLM2_KEY) {
@ -1093,13 +1112,6 @@ CURLcode Curl_output_ntlm(struct connectdata *conn,
useroff = domoff + domlen;
hostoff = useroff + userlen;
/*
* In the case the server sets the flag NTLMFLAG_NEGOTIATE_UNICODE, we
* need to filter it off because libcurl doesn't UNICODE encode the
* strings it packs into the NTLM authenticate packet.
*/
ntlm->flags &= ~NTLMFLAG_NEGOTIATE_UNICODE;
/* Create the big type-3 message binary blob */
size = snprintf((char *)ntlmbuf, sizeof(ntlmbuf),
NTLMSSP_SIGNATURE "%c"
@ -1227,15 +1239,27 @@ CURLcode Curl_output_ntlm(struct connectdata *conn,
}
DEBUGASSERT(size == domoff);
memcpy(&ntlmbuf[size], domain, domlen);
if(unicode)
unicodecpy(&ntlmbuf[size], domain, domlen/2);
else
memcpy(&ntlmbuf[size], domain, domlen);
size += domlen;
DEBUGASSERT(size == useroff);
memcpy(&ntlmbuf[size], user, userlen);
if(unicode)
unicodecpy(&ntlmbuf[size], user, userlen/2);
else
memcpy(&ntlmbuf[size], user, userlen);
size += userlen;
DEBUGASSERT(size == hostoff);
memcpy(&ntlmbuf[size], host, hostlen);
if(unicode)
unicodecpy(&ntlmbuf[size], host, hostlen/2);
else
memcpy(&ntlmbuf[size], host, hostlen);
size += hostlen;
/* convert domain, user, and host to ASCII but leave the rest as-is */