From 52955d1860b4dfb905f67bbe39d9b10bbd61ded0 Mon Sep 17 00:00:00 2001
From: Derek Nance <dnance@bitwarden.com>
Date: Wed, 4 Feb 2026 08:15:27 -0600
Subject: [PATCH] [PM-29144] Add server communication config to `/api/config`
 (#6892)

---
 .../Models/Response/ConfigResponseModel.cs    | 36 +++++++++++++++++++
 1 file changed, 36 insertions(+)

diff --git a/src/Api/Models/Response/ConfigResponseModel.cs b/src/Api/Models/Response/ConfigResponseModel.cs
index d748254206..e6ac35bb39 100644
--- a/src/Api/Models/Response/ConfigResponseModel.cs
+++ b/src/Api/Models/Response/ConfigResponseModel.cs
@@ -18,6 +18,7 @@ public class ConfigResponseModel : ResponseModel
     public EnvironmentConfigResponseModel Environment { get; set; }
     public IDictionary<string, object> FeatureStates { get; set; }
     public PushSettings Push { get; set; }
+    public CommunicationSettings Communication { get; set; }
     public ServerSettingsResponseModel Settings { get; set; }
 
     public ConfigResponseModel() : base("config")
@@ -48,6 +49,7 @@ public class ConfigResponseModel : ResponseModel
         FeatureStates = featureService.GetAll();
         var webPushEnabled = FeatureStates.TryGetValue(FeatureFlagKeys.WebPush, out var webPushEnabledValue) ? (bool)webPushEnabledValue : false;
         Push = PushSettings.Build(webPushEnabled, globalSettings);
+        Communication = CommunicationSettings.Build(globalSettings);
         Settings = new ServerSettingsResponseModel
         {
             DisableUserRegistration = globalSettings.DisableUserRegistration
@@ -88,6 +90,40 @@ public class PushSettings
     }
 }
 
+public class CommunicationSettings
+{
+    public CommunicationBootstrapSettings Bootstrap { get; private init; }
+
+    public static CommunicationSettings Build(IGlobalSettings globalSettings)
+    {
+        var bootstrap = CommunicationBootstrapSettings.Build(globalSettings);
+        return bootstrap == null ? null : new() { Bootstrap = bootstrap };
+    }
+}
+
+public class CommunicationBootstrapSettings
+{
+    public string Type { get; private init; }
+    public string IdpLoginUrl { get; private init; }
+    public string CookieName { get; private init; }
+    public string CookieDomain { get; private init; }
+
+    public static CommunicationBootstrapSettings Build(IGlobalSettings globalSettings)
+    {
+        return globalSettings.Communication?.Bootstrap?.ToLowerInvariant() switch
+        {
+            "ssocookievendor" => new()
+            {
+                Type = "ssoCookieVendor",
+                IdpLoginUrl = globalSettings.Communication?.SsoCookieVendor?.IdpLoginUrl,
+                CookieName = globalSettings.Communication?.SsoCookieVendor?.CookieName,
+                CookieDomain = globalSettings.Communication?.SsoCookieVendor?.CookieDomain
+            },
+            _ => null
+        };
+    }
+}
+
 public class ServerSettingsResponseModel
 {
     public bool DisableUserRegistration { get; set; }