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wininet: Don't assume maximal URL length in HTTP_ShouldBypassProxy. 

Signed-off-by: Jacek Caban <jacek@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Jacek Caban 2016-05-17 19:18:05 +02:00 committed by Alexandre Julliard
parent 1d5670c7c4
commit bd1f39ea27
1 changed files with 43 additions and 59 deletions
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102
dlls/wininet/http.c
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@ -1714,55 +1714,47 @@ static WCHAR *build_proxy_path_url(http_request_t *req)
return url;
}
static BOOL HTTP_DomainMatches(LPCWSTR server, LPCWSTR domain)
static BOOL HTTP_DomainMatches(LPCWSTR server, substr_t domain)
{
static const WCHAR localW[] = { '<','l','o','c','a','l','>',0 };
BOOL ret = FALSE;
const WCHAR *dot, *ptr;
int len;
if (!strcmpiW( domain, localW ) && !strchrW( server, '.' ))
ret = TRUE;
else if (*domain == '*')
{
if (domain[1] == '.')
{
LPCWSTR dot;
if(domain.len == sizeof(localW)/sizeof(WCHAR)-1 && !strncmpiW(domain.str, localW, domain.len) && !strchrW(server, '.' ))
return TRUE;
/* For a hostname to match a wildcard, the last domain must match
* the wildcard exactly. E.g. if the wildcard is *.a.b, and the
* hostname is www.foo.a.b, it matches, but a.b does not.
*/
dot = strchrW( server, '.' );
if (dot)
{
int len = strlenW( dot + 1 );
if(domain.len && *domain.str != '*')
return domain.len == strlenW(server) && !strncmpiW(server, domain.str, domain.len);
if (len > strlenW( domain + 2 ))
{
LPCWSTR ptr;
if(domain.len < 2 || domain.str[1] != '.')
return FALSE;
/* The server's domain is longer than the wildcard, so it
* could be a subdomain. Compare the last portion of the
* server's domain.
*/
ptr = dot + len + 1 - strlenW( domain + 2 );
if (!strcmpiW( ptr, domain + 2 ))
{
/* This is only a match if the preceding character is
* a '.', i.e. that it is a matching domain. E.g.
* if domain is '*.b.c' and server is 'www.ab.c' they
* do not match.
*/
ret = *(ptr - 1) == '.';
}
}
else
ret = !strcmpiW( dot + 1, domain + 2 );
}
}
}
else
ret = !strcmpiW( server, domain );
return ret;
/* For a hostname to match a wildcard, the last domain must match
* the wildcard exactly. E.g. if the wildcard is *.a.b, and the
* hostname is www.foo.a.b, it matches, but a.b does not.
*/
dot = strchrW(server, '.');
if(!dot)
return FALSE;
len = strlenW(dot + 1);
if(len <= domain.len - 2)
return FALSE;
/* The server's domain is longer than the wildcard, so it
* could be a subdomain. Compare the last portion of the
* server's domain.
*/
ptr = dot + 1 + len - domain.len + 2;
if(!strncmpiW(ptr, domain.str+2, domain.len-2))
/* This is only a match if the preceding character is
* a '.', i.e. that it is a matching domain. E.g.
* if domain is '*.b.c' and server is 'www.ab.c' they
* do not match.
*/
return *(ptr - 1) == '.';
return len == domain.len-2 && !strncmpiW(dot + 1, domain.str + 2, len);
}
static BOOL HTTP_ShouldBypassProxy(appinfo_t *lpwai, LPCWSTR server)
@ -1772,27 +1764,19 @@ static BOOL HTTP_ShouldBypassProxy(appinfo_t *lpwai, LPCWSTR server)
if (!lpwai->proxyBypass) return FALSE;
ptr = lpwai->proxyBypass;
do {
while(1) {
LPCWSTR tmp = ptr;
ptr = strchrW( ptr, ';' );
if (!ptr)
ptr = strchrW( tmp, ' ' );
if (ptr)
{
if (ptr - tmp < INTERNET_MAX_HOST_NAME_LENGTH)
{
WCHAR domain[INTERNET_MAX_HOST_NAME_LENGTH];
memcpy( domain, tmp, (ptr - tmp) * sizeof(WCHAR) );
domain[ptr - tmp] = 0;
ret = HTTP_DomainMatches( server, domain );
}
ptr += 1;
}
else if (*tmp)
ret = HTTP_DomainMatches( server, tmp );
} while (ptr && !ret);
if (!ptr)
ptr = tmp + strlenW(ptr);
ret = HTTP_DomainMatches( server, substr(tmp, ptr-tmp) );
if (ret || !*ptr)
break;
ptr++;
}
return ret;
}