1 files changed, 91 insertions, 0 deletions

diff --git a/src/WixToolset.Core/Bind/Databases/ConfigurationCallback.cs b/src/WixToolset.Core/Bind/Databases/ConfigurationCallback.cs
new file mode 100644
index 00000000..7cb18e0f
--- /dev/null
+++ b/src/WixToolset.Core/Bind/Databases/ConfigurationCallback.cs
@@ -0,0 +1,91 @@
+// Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information.
+
+namespace WixToolset.Bind.Databases
+{
+    using System;
+    using System.Collections;
+    using System.Globalization;
+    using WixToolset.MergeMod;
+
+    /// <summary>
+    /// Callback object for configurable merge modules.
+    /// </summary>
+    internal sealed class ConfigurationCallback : IMsmConfigureModule
+    {
+        private const int SOk = 0x0;
+        private const int SFalse = 0x1;
+        private Hashtable configurationData;
+
+        /// <summary>
+        /// Creates a ConfigurationCallback object.
+        /// </summary>
+        /// <param name="configData">String to break up into name/value pairs.</param>
+        public ConfigurationCallback(string configData)
+        {
+            if (String.IsNullOrEmpty(configData))
+            {
+                throw new ArgumentNullException("configData");
+            }
+
+            string[] pairs = configData.Split(',');
+            this.configurationData = new Hashtable(pairs.Length);
+            for (int i = 0; i < pairs.Length; ++i)
+            {
+                string[] nameVal = pairs[i].Split('=');
+                string name = nameVal[0];
+                string value = nameVal[1];
+
+                name = name.Replace("%2C", ",");
+                name = name.Replace("%3D", "=");
+                name = name.Replace("%25", "%");
+
+                value = value.Replace("%2C", ",");
+                value = value.Replace("%3D", "=");
+                value = value.Replace("%25", "%");
+
+                this.configurationData[name] = value;
+            }
+        }
+
+        /// <summary>
+        /// Returns text data based on name.
+        /// </summary>
+        /// <param name="name">Name of value to return.</param>
+        /// <param name="configData">Out param to put configuration data into.</param>
+        /// <returns>S_OK if value provided, S_FALSE if not.</returns>
+        public int ProvideTextData(string name, out string configData)
+        {
+            if (this.configurationData.Contains(name))
+            {
+                configData = (string)this.configurationData[name];
+                return SOk;
+            }
+            else
+            {
+                configData = null;
+                return SFalse;
+            }
+        }
+
+        /// <summary>
+        /// Returns integer data based on name.
+        /// </summary>
+        /// <param name="name">Name of value to return.</param>
+        /// <param name="configData">Out param to put configuration data into.</param>
+        /// <returns>S_OK if value provided, S_FALSE if not.</returns>
+        public int ProvideIntegerData(string name, out int configData)
+        {
+            if (this.configurationData.Contains(name))
+            {
+                string val = (string)this.configurationData[name];
+                configData = Convert.ToInt32(val, CultureInfo.InvariantCulture);
+                return SOk;
+            }
+            else
+            {
+                configData = 0;
+                return SFalse;
+            }
+        }
+    }
+}