/// <summary>Returns the <see cref="T:System.Net.NetworkCredential" /> instance associated with the specified Uniform Resource Identifier (URI) and authentication type.</summary>
/// <returns>A <see cref="T:System.Net.NetworkCredential" /> or, if there is no matching credential in the cache, null.</returns>
/// <param name="uriPrefix">A <see cref="T:System.Uri" /> that specifies the URI prefix of the resources that the credential grants access to. </param>
/// <param name="authType">The authentication scheme used by the resource named in <paramref name="uriPrefix" />. </param>
/// <exception cref="T:System.ArgumentNullException">
/// <paramref name="uriPrefix" /> or <paramref name="authType" /> is null. </exception>
public NetworkCredential GetCredential(System.Uri uriPrefix, string authType)
{
int num = -1;
NetworkCredential result = null;
if (uriPrefix == null || authType == null)
{
return(null);
}
string text = uriPrefix.AbsolutePath;
text = text.Substring(0, text.LastIndexOf('/'));
IDictionaryEnumerator enumerator = this.cache.GetEnumerator();
while (enumerator.MoveNext())
{
CredentialCache.CredentialCacheKey credentialCacheKey = enumerator.Key as CredentialCache.CredentialCacheKey;
if (credentialCacheKey.Length > num)
{
if (string.Compare(credentialCacheKey.AuthType, authType, true) == 0)
{
System.Uri uriPrefix2 = credentialCacheKey.UriPrefix;
if (!(uriPrefix2.Scheme != uriPrefix.Scheme))
{
if (uriPrefix2.Port == uriPrefix.Port)
{
if (!(uriPrefix2.Host != uriPrefix.Host))
{
if (text.StartsWith(credentialCacheKey.AbsPath))
{
num = credentialCacheKey.Length;
result = (NetworkCredential)enumerator.Value;
}
}
}
}
}
}
}
return(result);
}
public override bool Equals(object obj)
{
CredentialCache.CredentialCacheKey credentialCacheKey = obj as CredentialCache.CredentialCacheKey;
return(credentialCacheKey != null && this.hash == credentialCacheKey.hash);
}