fix prev patch

[mono.git] / mcs / class / System / System.Net / HttpListenerContext.cs

diff --git a/mcs/class/System/System.Net/HttpListenerContext.cs b/mcs/class/System/System.Net/HttpListenerContext.cs
index 43c08a2b92beae03d31704d9ce2b7489bd91aaa3..6d41e4207bd134f487a02f6b7f87127888ed2a49 100644 (file)
--- a/mcs/class/System/System.Net/HttpListenerContext.cs
+++ b/mcs/class/System/System.Net/HttpListenerContext.cs
@@ -78,6 +78,59 @@ namespace System.Net {
                public IPrincipal User {
                        get { return user; }
                }
+
+               internal void ParseAuthentication () {
+                       // TODO: Handle NTLM/Digest modes
+                       string header = request.Headers ["Authorization"];
+
+                       if (header == null || header.Length < 2)
+                               return;
+
+                       string [] authenticationData = header.Substring (header.IndexOf (':') + 1).Split (new char [] {' '});
+
+                       if (string.Compare (authenticationData [0], "basic", true) == 0) {
+                               user = ParseBasicAuthentication (authenticationData [1]);
+                       }
+               }
+       
+               internal IPrincipal ParseBasicAuthentication (string authData) {
+                       try {
+                               // Basic AUTH Data is a formatted Base64 String
+                               //string domain = null;
+                               string user = null;
+                               string password = null;
+                               int pos = -1;
+                               string authString = System.Text.Encoding.Default.GetString (Convert.FromBase64String (authData));
+       
+                               // The format is DOMAIN\username:password
+                               // Domain is optional
+
+                               pos = authString.IndexOf (':');
+       
+                               // parse the password off the end
+                               password = authString.Substring (pos+1);
+                               
+                               // discard the password
+                               authString = authString.Substring (0, pos);
+       
+                               // check if there is a domain
+                               pos = authString.IndexOf ('\\');
+       
+                               if (pos > 0) {
+                                       //domain = authString.Substring (0, pos);
+                                       user = authString.Substring (pos);
+                               } else {
+                                       user = authString;
+                               }
+       
+                               HttpListenerBasicIdentity identity = new HttpListenerBasicIdentity (user, password);
+                               // TODO: What are the roles MS sets
+                               return new GenericPrincipal (identity, new string [0]);
+                       } catch (Exception) {
+                               // Invalid auth data is swallowed silently
+                               return null;
+                       } 
+               }
        }
 }
 #endif