#12 Added support for Basic and Bearer webhook authentication

Author: djdd87

SynoAI/Notifiers/Webhook/AuthorizationMethod.cs

@@ -0,0 +1,9 @@
+namespace SynoAI.Notifiers.Webhook
+{
+    public enum AuthorizationMethod
+    {
+        None,
+        Basic,
+        Bearer
+    }
+}

SynoAI/Notifiers/Webhook/Webhook.cs

@@ -7,7 +7,9 @@
 using System.IO;
 using System.Linq;
 using System.Net.Http;
+using System.Net.Http.Headers;
 using System.Net.Http.Json;
+using System.Text;
 using System.Threading.Tasks;
 
 namespace SynoAI.Notifiers.Webhook
@@ -25,6 +27,24 @@ public class Webhook : NotifierBase
         /// The HTTP method (POST/PUT/etc).
         /// </summary>
         public string Method { get; set; }
+
+        /// <summary>
+        /// The type of authentication.
+        /// </summary>
+        public AuthorizationMethod Authentication { get; set; }
+        /// <summary>
+        /// The username when using Basic authentication.
+        /// </summary>
+        public string Username {get;set;}
+        /// <summary>
+        /// The password to use when using Basic authentication.
+        /// </summary>
+        public string Password {get;set;}
+        /// <summary>
+        /// The token to use when using Bearer authentication.
+        /// </summary>
+        public string Token {get;set;}
+        
         /// <summary>
         /// The field name when posting the image.
         /// </summary>
@@ -50,6 +70,8 @@ public override async Task Send(Camera camera, ISnapshotManager snapshotManager,
             logger.LogInformation($"{camera.Name}: Webhook: Processing");
             using (HttpClient client = new HttpClient())
             {
+                client.DefaultRequestHeaders.Authorization = GetAuthenticationHeader();
+
                 MultipartFormDataContent data = new MultipartFormDataContent();
                 if (SendTypes)
                 {
@@ -112,6 +134,29 @@ public override async Task Send(Camera camera, ISnapshotManager snapshotManager,
             }
         }
 
+        /// <summary>
+        /// Generates an authentication header for the client.
+        /// </summary>
+        /// <returns>An authentication header.</returns>
+        private AuthenticationHeaderValue GetAuthenticationHeader()
+        {
+            string parameter;
+            switch (Authentication)
+            {
+                case AuthorizationMethod.Basic:
+                    byte[] bytes = Encoding.ASCII.GetBytes($"{Username}:{Password}");
+                    parameter = Convert.ToBase64String(bytes);
+                    break;
+                case AuthorizationMethod.Bearer:
+                    parameter = Token;
+                    break;
+                default:
+                    return null;
+            }
+
+            return new AuthenticationHeaderValue(Authentication.ToString(), parameter);
+        }
+
         /// <summary>
         /// Fetches the response content and parses it a DeepStack object.
         /// </summary>

SynoAI/Notifiers/Webhook/WebhookFactory.cs

@@ -14,6 +14,10 @@ public override INotifier Create(ILogger logger, IConfigurationSection section)
                 logger.LogInformation("Processing Webhook Config");
 
                 string url = section.GetValue<string>("Url");
+                AuthorizationMethod authentication = section.GetValue<AuthorizationMethod>("Authorization", AuthorizationMethod.None);
+                string username = section.GetValue<string>("Username", null);
+                string password = section.GetValue<string>("Password", null);
+                string token = section.GetValue<string>("Token", null);
                 string field = section.GetValue<string>("Field", "image");
                 string method = section.GetValue<string>("Method", "POST");
                 bool sendImage = section.GetValue<bool>("SendImage", true);
@@ -22,6 +26,10 @@ public override INotifier Create(ILogger logger, IConfigurationSection section)
                 Webhook webhook = new Webhook()
                 {
                     Url = url,
+                    Authentication = authentication,
+                    Username = username,
+                    Password = password,
+                    Token = token,
                     SendImage = sendImage,
                     SendTypes = sendTypes
                 };