OIDC Integration

watcher-monitoring/Configuration/OidcSettings.cs

@@ -0,0 +1,53 @@
+namespace watcher_monitoring.Configuration;
+
+public class OidcSettings
+{
+    public bool Enabled { get; set; } = false;
+
+    public string Authority { get; set; } = string.Empty;
+
+    public string ClientId { get; set; } = string.Empty;
+
+    public string ClientSecret { get; set; } = string.Empty;
+
+    public string Scopes { get; set; } = "openid profile email";
+
+    public string CallbackPath { get; set; } = "/signin-oidc";
+
+    public string ClaimUsername { get; set; } = "preferred_username";
+
+    public string ClaimEmail { get; set; } = "email";
+
+    public bool AutoProvisionUsers { get; set; } = true;
+
+    public bool IsValid => Enabled &&
+                           !string.IsNullOrWhiteSpace(Authority) &&
+                           !string.IsNullOrWhiteSpace(ClientId) &&
+                           !string.IsNullOrWhiteSpace(ClientSecret);
+
+    public string[] GetScopes() => Scopes.Split(' ', StringSplitOptions.RemoveEmptyEntries);
+
+    public static OidcSettings FromEnvironment()
+    {
+        return new OidcSettings
+        {
+            Enabled = GetBoolEnv("OIDC_ENABLED", false),
+            Authority = Environment.GetEnvironmentVariable("OIDC_AUTHORITY") ?? string.Empty,
+            ClientId = Environment.GetEnvironmentVariable("OIDC_CLIENT_ID") ?? string.Empty,
+            ClientSecret = Environment.GetEnvironmentVariable("OIDC_CLIENT_SECRET") ?? string.Empty,
+            Scopes = Environment.GetEnvironmentVariable("OIDC_SCOPES") ?? "openid profile email",
+            CallbackPath = Environment.GetEnvironmentVariable("OIDC_CALLBACK_PATH") ?? "/signin-oidc",
+            ClaimUsername = Environment.GetEnvironmentVariable("OIDC_CLAIM_USERNAME") ?? "preferred_username",
+            ClaimEmail = Environment.GetEnvironmentVariable("OIDC_CLAIM_EMAIL") ?? "email",
+            AutoProvisionUsers = GetBoolEnv("OIDC_AUTO_PROVISION_USERS", true)
+        };
+    }
+
+    private static bool GetBoolEnv(string key, bool defaultValue)
+    {
+        var value = Environment.GetEnvironmentVariable(key);
+        if (string.IsNullOrWhiteSpace(value)) return defaultValue;
+        return value.Equals("true", StringComparison.OrdinalIgnoreCase) ||
+               value.Equals("1", StringComparison.OrdinalIgnoreCase);
+    }
+}