From 5e4d6cab00cb29cd088ab7b62ab13aff103b64cb Mon Sep 17 00:00:00 2001
From: onefang
Date: Sun, 19 May 2019 21:24:15 +1000
Subject: Dump OpenSim 0.9.0.1 into it's own branch.

---
 .../PasswordAuthenticationService.cs               | 94 +++++++++++++++++-----
 1 file changed, 74 insertions(+), 20 deletions(-)

(limited to 'OpenSim/Services/AuthenticationService/PasswordAuthenticationService.cs')

diff --git a/OpenSim/Services/AuthenticationService/PasswordAuthenticationService.cs b/OpenSim/Services/AuthenticationService/PasswordAuthenticationService.cs
index 5f1bde1..0204699 100644
--- a/OpenSim/Services/AuthenticationService/PasswordAuthenticationService.cs
+++ b/OpenSim/Services/AuthenticationService/PasswordAuthenticationService.cs
@@ -41,7 +41,7 @@ namespace OpenSim.Services.AuthenticationService
     // Generic Authentication service used for identifying
     // and authenticating principals.
     // Principals may be clients acting on users' behalf,
-    // or any other components that need 
+    // or any other components that need
     // verifiable identification.
     //
     public class PasswordAuthenticationService :
@@ -50,7 +50,13 @@ namespace OpenSim.Services.AuthenticationService
         private static readonly ILog m_log =
                 LogManager.GetLogger(
                 MethodBase.GetCurrentMethod().DeclaringType);
- 
+
+        public PasswordAuthenticationService(IConfigSource config, IUserAccountService userService) :
+                base(config, userService)
+        {
+            m_log.Debug("[AUTH SERVICE]: Started with User Account access");
+        }
+
         public PasswordAuthenticationService(IConfigSource config) :
                 base(config)
         {
@@ -58,42 +64,90 @@ namespace OpenSim.Services.AuthenticationService
 
         public string Authenticate(UUID principalID, string password, int lifetime)
         {
+            UUID realID;
+            return Authenticate(principalID, password, lifetime, out realID);
+        }
+
+        public string Authenticate(UUID principalID, string password, int lifetime, out UUID realID)
+        {
+            realID = UUID.Zero;
+
+            m_log.DebugFormat("[AUTH SERVICE]: Authenticating for {0}, user account service present: {1}", principalID, m_UserAccountService != null);
             AuthenticationData data = m_Database.Get(principalID);
+            UserAccount user = null;
+            if (m_UserAccountService != null)
+                user = m_UserAccountService.GetUserAccount(UUID.Zero, principalID);
 
-            if (data == null)
+            if (data == null || data.Data == null)
             {
-                m_log.DebugFormat("[AUTH SERVICE]: PrincipalID {0} not found", principalID);
+                m_log.DebugFormat("[AUTH SERVICE]: PrincipalID {0} or its data not found", principalID);
                 return String.Empty;
             }
-            else if (data.Data == null)
+
+            if (!data.Data.ContainsKey("passwordHash") ||
+                !data.Data.ContainsKey("passwordSalt"))
             {
-                m_log.DebugFormat("[AUTH SERVICE]: PrincipalID {0} data not found", principalID);
                 return String.Empty;
             }
-            else if (!data.Data.ContainsKey("passwordHash") || !data.Data.ContainsKey("passwordSalt"))
+
+            string hashed = Util.Md5Hash(password + ":" +
+                    data.Data["passwordSalt"].ToString());
+
+//            m_log.DebugFormat("[PASS AUTH]: got {0}; hashed = {1}; stored = {2}", password, hashed, data.Data["passwordHash"].ToString());
+
+            if (data.Data["passwordHash"].ToString() == hashed)
+            {
+                return GetToken(principalID, lifetime);
+            }
+
+            if (user == null)
             {
-                m_log.DebugFormat(
-                    "[AUTH SERVICE]: PrincipalID {0} data didn't contain either passwordHash or passwordSalt", principalID);
+                m_log.DebugFormat("[PASS AUTH]: No user record for {0}", principalID);
                 return String.Empty;
             }
-            else
+
+            int impersonateFlag = 1 << 6;
+
+            if ((user.UserFlags & impersonateFlag) == 0)
+                return String.Empty;
+
+            m_log.DebugFormat("[PASS AUTH]: Attempting impersonation");
+
+            List<UserAccount> accounts = m_UserAccountService.GetUserAccountsWhere(UUID.Zero, "UserLevel >= 200");
+            if (accounts == null || accounts.Count == 0)
+                return String.Empty;
+
+            foreach (UserAccount a in accounts)
             {
-                string hashed = Util.Md5Hash(password + ":" + data.Data["passwordSalt"].ToString());
+                data = m_Database.Get(a.PrincipalID);
+                if (data == null || data.Data == null ||
+                    !data.Data.ContainsKey("passwordHash") ||
+                    !data.Data.ContainsKey("passwordSalt"))
+                {
+                    continue;
+                }
+
+//                m_log.DebugFormat("[PASS AUTH]: Trying {0}", data.PrincipalID);
 
-                m_log.DebugFormat("[PASS AUTH]: got {0}; hashed = {1}; stored = {2}", password, hashed, data.Data["passwordHash"].ToString());
+                hashed = Util.Md5Hash(password + ":" +
+                        data.Data["passwordSalt"].ToString());
 
                 if (data.Data["passwordHash"].ToString() == hashed)
                 {
+                    m_log.DebugFormat("[PASS AUTH]: {0} {1} impersonating {2}, proceeding with login", a.FirstName, a.LastName, principalID);
+                    realID = a.PrincipalID;
                     return GetToken(principalID, lifetime);
                 }
-                else
-                {
-                    m_log.DebugFormat(
-                        "[AUTH SERVICE]: Salted hash {0} of given password did not match salted hash of {1} for PrincipalID {2}.  Authentication failure.",
-                        hashed, data.Data["passwordHash"], principalID);
-                    return String.Empty;
-                }
+//                else
+//                {
+//                    m_log.DebugFormat(
+//                        "[AUTH SERVICE]: Salted hash {0} of given password did not match salted hash of {1} for PrincipalID {2}.  Authentication failure.",
+//                        hashed, data.Data["passwordHash"], data.PrincipalID);
+//                }
             }
+
+            m_log.DebugFormat("[PASS AUTH]: Impersonation of {0} failed", principalID);
+            return String.Empty;
         }
     }
-}
\ No newline at end of file
+}
-- 
cgit v1.1