Modifications for SMTP in OpenSimulator. Email size limit was fixed (was out of step with documentation at 1024, so boosted to 4096). Added configuration item for maximum email size. Redundant sleep inside email module was fixed (LSL Api was already sleeping). Added sleep time configuration item for snooze between email sending for LSL Api. Added two new configuration items (email_max_size and email_pause_time) into the example OpenSim.ini, plus fixed a spelling error (llimits) and odd tabbing.

Signed-off-by: BlueWall <jamesh@bluewallgroup.com>

OpenSim/Region/CoreModules/Scripting/EMailModules/EmailModule.cs

@@ -64,6 +64,8 @@ namespace OpenSim.Region.CoreModules.Scripting.EmailModules
         private TimeSpan m_QueueTimeout = new TimeSpan(2, 0, 0); // 2 hours without llGetNextEmail drops the queue
         private string m_InterObjectHostname = "lsl.opensim.local";
 
+        private int m_MaxEmailSize = 4096;  // largest email allowed by default, as per lsl docs.
+
         // Scenes by Region Handle
         private Dictionary<ulong, Scene> m_Scenes =
             new Dictionary<ulong, Scene>();
@@ -127,6 +129,7 @@ namespace OpenSim.Region.CoreModules.Scripting.EmailModules
                 SMTP_SERVER_PORT = SMTPConfig.GetInt("SMTP_SERVER_PORT", SMTP_SERVER_PORT);
                 SMTP_SERVER_LOGIN = SMTPConfig.GetString("SMTP_SERVER_LOGIN", SMTP_SERVER_LOGIN);
                 SMTP_SERVER_PASSWORD = SMTPConfig.GetString("SMTP_SERVER_PASSWORD", SMTP_SERVER_PASSWORD);
+		m_MaxEmailSize = SMTPConfig.GetInt("email_max_size", m_MaxEmailSize); 
             }
             catch (Exception e)
             {
@@ -176,18 +179,6 @@ namespace OpenSim.Region.CoreModules.Scripting.EmailModules
             get { return true; }
         }
 
-        /// <summary>
-        /// Delay function using thread in seconds
-        /// </summary>
-        /// <param name="seconds"></param>
-        private void DelayInSeconds(int delay)
-        {
-            delay = (int)((float)delay * 1000);
-            if (delay == 0)
-                return;
-            System.Threading.Thread.Sleep(delay);
-        }
-
         private bool IsLocal(UUID objectID)
         {
             string unused;
@@ -267,10 +258,9 @@ namespace OpenSim.Region.CoreModules.Scripting.EmailModules
                 m_log.Error("[EMAIL] REGEX Problem in EMail Address: "+address);
                 return;
             }
-            //FIXME:Check if subject + body = 4096 Byte
+            if ((subject.Length + body.Length) > m_MaxEmailSize)
-            if ((subject.Length + body.Length) > 1024)
             {
-                m_log.Error("[EMAIL] subject + body > 1024 Byte");
+                m_log.Error("[EMAIL] subject + body larger than limit of " + m_MaxEmailSize + " bytes");
                 return;
             }
 
@@ -345,10 +335,6 @@ namespace OpenSim.Region.CoreModules.Scripting.EmailModules
                     // TODO FIX
                 }
             }
-
-            //DONE: Message as Second Life style
-            //20 second delay - AntiSpam System - for now only 10 seconds
-            DelayInSeconds(10);
         }
 
         /// <summary>

OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs

@@ -106,6 +106,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
         protected IUrlModule m_UrlModule = null;
         protected Dictionary<UUID, UserInfoCacheEntry> m_userInfoCache =
                 new Dictionary<UUID, UserInfoCacheEntry>();
+	protected int EMAIL_PAUSE_TIME = 20;  // documented delay value for smtp.
 
         public void Initialize(IScriptEngine ScriptEngine, SceneObjectPart host, TaskInventoryItem item)
         {
@@ -113,6 +114,18 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             m_host = host;
             m_item = item;
 
+            LoadLimits();  // read script limits from config.
+
+            m_TransferModule =
+                    m_ScriptEngine.World.RequestModuleInterface<IMessageTransferModule>();
+            m_UrlModule = m_ScriptEngine.World.RequestModuleInterface<IUrlModule>();
+
+            AsyncCommands = new AsyncCommandManager(ScriptEngine);
+        }
+
+        /* load configuration items that affect script, object and run-time behavior. */
+        private void LoadLimits()
+        {
             m_ScriptDelayFactor =
                 m_ScriptEngine.Config.GetFloat("ScriptDelayFactor", 1.0f);
             m_ScriptDistanceFactor =
@@ -125,12 +138,12 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                 m_ScriptEngine.Config.GetInt("NotecardLineReadCharsMax", 255);
             if (m_notecardLineReadCharsMax > 65535)
                 m_notecardLineReadCharsMax = 65535;
-
+            // load limits for particular subsystems.
-            m_TransferModule =
+            IConfig SMTPConfig;
-                    m_ScriptEngine.World.RequestModuleInterface<IMessageTransferModule>();
+            if ((SMTPConfig = m_ScriptEngine.ConfigSource.Configs["SMTP"]) != null) {
-            m_UrlModule = m_ScriptEngine.World.RequestModuleInterface<IUrlModule>();
+                // there's an smtp config, so load in the snooze time.
-
+                EMAIL_PAUSE_TIME = SMTPConfig.GetInt("email_pause_time", EMAIL_PAUSE_TIME);
-            AsyncCommands = new AsyncCommandManager(ScriptEngine);
+            }
         }
 
         public override Object InitializeLifetimeService()
@@ -2877,6 +2890,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
 
         public virtual void llSleep(double sec)
         {
+//            m_log.Info("llSleep snoozing " + sec + "s.");
             m_host.AddScriptLPS(1);
             Thread.Sleep((int)(sec * 1000));
         }
@@ -3130,7 +3144,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             }
 
             emailModule.SendEmail(m_host.UUID, address, subject, message);
-            ScriptSleep(20000);
+            llSleep(EMAIL_PAUSE_TIME);
         }
 
         public void llGetNextEmail(string address, string subject)

bin/OpenSim.ini.example

@@ -273,6 +273,12 @@
     ;# {host_domain_header_from} {[Startup]emailmodule:DefaultEmailModule enabled:true} {From address to use in the sent email header?} {} 127.0.0.1
     ; host_domain_header_from = "127.0.0.1"
 
+    ;# {email_pause_time} {[Startup]emailmodule:DefaultEmailModule enabled:true} {Period in seconds to delay after an email is sent.} {} 20
+    ; email_pause_time = 20
+
+    ;# {email_max_size} {[Startup]emailmodule:DefaultEmailModule enabled:true} {Maximum total size of email in bytes.} {} 4096
+    ; email_max_size = 4096
+
     ;# {SMTP_SERVER_HOSTNAME} {[Startup]emailmodule:DefaultEmailModule enabled:true} {SMTP server name?} {} 127.0.0.1
     ; SMTP_SERVER_HOSTNAME = "127.0.0.1"
 
@@ -285,7 +291,6 @@
     ;# {SMTP_SERVER_PASSWORD} {[Startup]emailmodule:DefaultEmailModule enabled:true} {SMTP server password} {}
     ; SMTP_SERVER_PASSWORD = ""
 
-
 [Network]
     ;; Configure the remote console user here. This will not actually be used
     ;; unless you use -console=rest at startup.
@@ -677,7 +682,7 @@
     ;; Sets the multiplier for the scripting delays
     ; ScriptDelayFactor = 1.0
 
-    ;; The factor the 10 m distances llimits are multiplied by
+    ;; The factor the 10 m distances limits are multiplied by
     ; ScriptDistanceLimitFactor = 1.0
 
     ;; Maximum length of notecard line read