Update the Slack provider to support the bot/webhook claims

Author: chunkychode

src/AspNet.Security.OAuth.Slack/SlackAuthenticationHandler.cs

@@ -42,12 +42,17 @@ protected override async Task<AuthenticationTicket> CreateTicketAsync([NotNull]
             }
 
             var payload = JObject.Parse(await response.Content.ReadAsStringAsync());
-            
+
             identity.AddOptionalClaim(ClaimTypes.NameIdentifier, SlackAuthenticationHelper.GetUserIdentifier(payload), Options.ClaimsIssuer)
                     .AddOptionalClaim(ClaimTypes.Name, SlackAuthenticationHelper.GetUserName(payload), Options.ClaimsIssuer)
                     .AddOptionalClaim("urn:slack:team_id", SlackAuthenticationHelper.GetTeamIdentifier(payload), Options.ClaimsIssuer)
                     .AddOptionalClaim("urn:slack:team_name", SlackAuthenticationHelper.GetTeamName(payload), Options.ClaimsIssuer)
-                    .AddOptionalClaim("urn:slack:team_url", SlackAuthenticationHelper.GetTeamLink(payload), Options.ClaimsIssuer);
+                    .AddOptionalClaim("urn:slack:team_url", SlackAuthenticationHelper.GetTeamLink(payload), Options.ClaimsIssuer)
+                    .AddOptionalClaim("urn:slack:bot:user_id", SlackAuthenticationHelper.GetBotUserId(payload), Options.ClaimsIssuer)
+                    .AddOptionalClaim("urn:slack:bot:access_token", SlackAuthenticationHelper.GetBotAccessToken(payload), Options.ClaimsIssuer)
+                    .AddOptionalClaim("urn:slack:webhook:channel", SlackAuthenticationHelper.GetWebhookChannel(payload), Options.ClaimsIssuer)
+                    .AddOptionalClaim("urn:slack:webhook:url", SlackAuthenticationHelper.GetWebhookURL(payload), Options.ClaimsIssuer)
+                    .AddOptionalClaim("urn:slack:webhook:configuration_url", SlackAuthenticationHelper.GetWebhookConfigurationURL(payload), Options.ClaimsIssuer);
 
             var principal = new ClaimsPrincipal(identity);
             var ticket = new AuthenticationTicket(principal, properties, Options.AuthenticationScheme);

src/AspNet.Security.OAuth.Slack/SlackAuthenticationHelper.cs

@@ -37,5 +37,31 @@ public static class SlackAuthenticationHelper {
         /// Gets the URL corresponding to the authenticated user.
         /// </summary>
         public static string GetTeamLink([NotNull] JObject user) => user.Value<string>("url");
+
+        /// <summary>
+        /// Gets the identifier associated with the bot.
+        /// </summary>
+        public static string GetBotUserId([NotNull] JObject user) => user["bot"]?.Value<string>("bot_user_id");
+
+        /// <summary>
+        /// Gets the access token associated with the bot.
+        /// </summary>
+        public static string GetBotAccessToken([NotNull] JObject user) => user["bot"]?.Value<string>("bot_access_token");
+
+        /// <summary>
+        /// Gets the channel name of the selected webhook.
+        /// </summary>
+        public static string GetWebhookChannel([NotNull] JObject user) => user["incoming_webhook"]?.Value<string>("channel");
+
+        /// <summary>
+        /// Gets the URL of the selected webhook.
+        /// </summary>
+        public static string GetWebhookURL([NotNull] JObject user) => user["incoming_webhook"]?.Value<string>("url");
+
+        /// <summary>
+        /// Gets the channel configuration URL of the selected webhook.
+        /// </summary>
+        public static string GetWebhookConfigurationURL([NotNull] JObject user) => user["incoming_webhook"]?.Value<string>("configuration_url");
+
     }
 }