Initial commit

src/Lithnet.CredentialProvider/Controls/InsecurePasswordTextboxControl.cs

@@ -0,0 +1,69 @@
+using System;
+using System.Runtime.InteropServices;
+using Lithnet.CredentialProvider.Interop;
+using Microsoft.Extensions.Logging;
+
+namespace Lithnet.CredentialProvider
+{
+    /// <summary>
+    /// A masked password text box, with a Password property that provides the password in plain text
+    /// </summary>
+    public class InsecurePasswordTextboxControl : ControlBase
+    {
+        private string password;
+
+        /// <summary>
+        /// Creates a new <c ref="InsecurePasswordTextboxControl"/> control
+        /// </summary>
+        /// <param name="key">The unique key for this control</param>
+        public InsecurePasswordTextboxControl(string key) : this(key, null) { }
+
+        /// <summary>
+        /// Creates a new <c ref="InsecurePasswordTextboxControl"/> control
+        /// </summary>
+        /// <param name="key">The unique key for this control</param>
+        /// <param name="label">The label associated with the control</param>
+        public InsecurePasswordTextboxControl(string key, string label) : base(key, label, FieldType.PasswordText) { }
+        private InsecurePasswordTextboxControl(InsecurePasswordTextboxControl source) : base(source) { }
+
+        /// <summary>
+        /// Gets or sets the password value in plain text
+        /// </summary>
+        public string Password
+        {
+            get { return this.password; }
+            set
+            {
+                if (this.password != value)
+                {
+                    this.password = value;
+                    if (this.password?.Length > 0)
+                    {
+                        var ptr = Marshal.StringToCoTaskMemUni(this.password);
+                        this.logger.LogTrace($"0x:{ptr.ToString("X16")} - Created ptr for outgoing SetFieldString");
+                        this.Events?.SetFieldString(this.Credential, this.Id, ptr);
+                    }
+                    else
+                    {
+                        this.Events?.SetFieldString(this.Credential, this.Id, IntPtr.Zero);
+                    }
+
+                    this.RaisePropertyChanged(nameof(this.Password));
+                }
+            }
+        }
+
+        internal void SetPasswordInternal(string s)
+        {
+            this.password = s;
+            this.RaisePropertyChanged(nameof(this.Password));
+        }
+
+        internal override ControlBase Clone()
+        {
+            var clone = new InsecurePasswordTextboxControl(this);
+            clone.password = this.password;
+            return clone;
+        }
+    }
+}