/// <summary>
/// Extracts the username and password from an HTTP Basic authorized web header.
/// </summary>
/// <param name="headers">The incoming web headers.</param>
/// <returns>The network credentials; or <c>null</c> if none could be discovered in the request.</returns>
internal static NetworkCredential ParseHttpBasicAuth(System.Net.Http.Headers.HttpRequestHeaders headers)
{
Requires.NotNull(headers, "headers");
var authorizationHeader = headers.Authorization;
if (authorizationHeader != null && string.Equals(authorizationHeader.Scheme, HttpBasicAuthScheme, StringComparison.Ordinal))
{
string base64 = authorizationHeader.Parameter;
byte[] bits = Convert.FromBase64String(base64);
byte[] colonBits = Encoding.ASCII.GetBytes(new char[] { ':' }); // MUST result in 1 byte.
int index = Array.FindIndex(bits, bite => (bite == colonBits[0]));
if (index >= 0)
{
byte[] userNameBits = new byte[index];
byte[] passwordBits = new byte[bits.Length - (index + 1)];
Array.Copy(bits, 0, userNameBits, 0, userNameBits.Length);
Array.Copy(bits, index + 1, passwordBits, 0, passwordBits.Length);
string userName = Section231Decode(userNameBits);
string password = Section231Decode(passwordBits);
return(new NetworkCredential(userName, password));
}
}
return(null);
}
/// <summary>
/// Applies the HTTP Authorization header for HTTP Basic authentication.
/// </summary>
/// <param name="headers">The headers collection to set the authorization header to.</param>
/// <param name="userName">The username. Cannot be empty.</param>
/// <param name="password">The password. Cannot be null.</param>
internal static void ApplyHttpBasicAuth(System.Net.Http.Headers.HttpRequestHeaders headers, string userName, string password)
{
Requires.NotNull(headers, "headers");
Requires.NotNullOrEmpty(userName, "userName");
Requires.NotNull(password, "password");
string concat = userName + ":" + password;
byte[] bits = HttpBasicEncoding.GetBytes(concat);
string base64 = Convert.ToBase64String(bits);
headers.Authorization = new AuthenticationHeaderValue(HttpBasicAuthScheme, base64);
}
/// <summary>
/// Applies the HTTP Authorization header for HTTP Basic authentication.
/// </summary>
/// <param name="headers">The headers collection to set the authorization header to.</param>
/// <param name="userName">The username. Cannot be empty.</param>
/// <param name="password">The password. Cannot be null.</param>
public static void ApplyHttpBasicAuth(System.Net.Http.Headers.HttpRequestHeaders headers, string userName, string password)
{
Requires.NotNull(headers, "headers");
Requires.NotNullOrEmpty(userName, "userName");
Requires.NotNull(password, "password");
byte[] userNameBits = Section231Encode(userName);
byte[] passwordBits = Section231Encode(password);
byte[] colonBits = Encoding.ASCII.GetBytes(new char[] { ':' });
byte[] concatBits = new byte[userNameBits.Length + colonBits.Length + passwordBits.Length];
userNameBits.CopyTo(concatBits, 0);
colonBits.CopyTo(concatBits, userNameBits.Length);
passwordBits.CopyTo(concatBits, userNameBits.Length + colonBits.Length);
string base64 = Convert.ToBase64String(concatBits);
headers.Authorization = new AuthenticationHeaderValue(HttpBasicAuthScheme, base64);
}
/// <summary>
/// Extracts the username and password from an HTTP Basic authorized web header.
/// </summary>
/// <param name="headers">The incoming web headers.</param>
/// <returns>The network credentials; or <c>null</c> if none could be discovered in the request.</returns>
internal static NetworkCredential ParseHttpBasicAuth(System.Net.Http.Headers.HttpRequestHeaders headers)
{
Requires.NotNull(headers, "headers");
var authorizationHeader = headers.Authorization;
if (authorizationHeader != null && string.Equals(authorizationHeader.Scheme, HttpBasicAuthScheme, StringComparison.Ordinal))
{
string base64 = authorizationHeader.Parameter;
byte[] bits = Convert.FromBase64String(base64);
string usernameColonPassword = HttpBasicEncoding.GetString(bits);
string[] usernameAndPassword = usernameColonPassword.Split(ColonSeparator, 2);
if (usernameAndPassword.Length == 2)
{
return(new NetworkCredential(usernameAndPassword[0], usernameAndPassword[1]));
}
}
return(null);
}
