1 files changed, 78 insertions, 0 deletions
diff --git a/VNLib.Plugins.Essentials.Accounts/MFA/MFAConfig.cs b/VNLib.Plugins.Essentials.Accounts/MFA/MFAConfig.cs
new file mode 100644
index 0000000..8d1c2c1
--- /dev/null
+++ b/VNLib.Plugins.Essentials.Accounts/MFA/MFAConfig.cs
@@ -0,0 +1,78 @@
+using System;
+using System.Linq;
+using System.Text.Json;
+using System.Collections.Generic;
+
+using VNLib.Hashing;
+using VNLib.Utils.Extensions;
+
+namespace VNLib.Plugins.Essentials.Accounts.MFA
+{
+    internal class MFAConfig
+    {
+        public byte[]? MFASecret { get; set; } = null;
+
+        public bool TOTPEnabled { get; } = false;
+        public string? IssuerName { get; }
+        public TimeSpan TOTPPeriod { get; }
+        public HashAlg TOTPAlg { get; }
+        public int TOTPDigits { get; }
+        public int TOTPSecretBytes { get; }
+        public int TOTPTimeWindowSteps { get; }
+
+
+        public bool FIDOEnabled { get; }
+        public int FIDOChallangeSize { get; }
+        public int FIDOTimeout { get; }
+        public string? FIDOSiteName { get; }
+        public string? FIDOAttestationType { get; }
+        public FidoAuthenticatorSelection? FIDOAuthSelection { get; }
+
+        public TimeSpan UpgradeValidFor { get; }
+        public int NonceLenBytes { get; }
+
+        public MFAConfig(IReadOnlyDictionary<string, JsonElement> conf)
+        {
+            UpgradeValidFor = conf["upgrade_expires_secs"].GetTimeSpan(TimeParseType.Seconds);
+            NonceLenBytes = conf["nonce_size"].GetInt32();
+            string siteName = conf["site_name"].GetString() ?? throw new KeyNotFoundException("Missing required key 'site_name' in 'mfa' config");
+
+            //Totp setup
+            if (conf.TryGetValue("totp", out JsonElement totpEl))
+            {
+                IReadOnlyDictionary<string, JsonElement> totp = totpEl.EnumerateObject().ToDictionary(k => k.Name, k => k.Value);
+
+                //Get totp config
+                IssuerName = siteName;
+                //Get alg name
+                string TOTPAlgName = totp["algorithm"].GetString()?.ToUpper() ?? throw new KeyNotFoundException("Missing required key 'algorithm' in plugin 'mfa' config");
+                //Parse from enum string
+                TOTPAlg = Enum.Parse<HashAlg>(TOTPAlgName);
+
+               
+                TOTPDigits = totp["digits"].GetInt32();
+                TOTPPeriod = TimeSpan.FromSeconds(totp["period_secs"].GetInt32());
+                TOTPSecretBytes = totp["secret_size"].GetInt32();
+                TOTPTimeWindowSteps = totp["window_size"].GetInt32();
+                //Set enabled flag
+                TOTPEnabled = true;
+            }
+            //Fido setup
+            if(conf.TryGetValue("fido", out JsonElement fidoEl))
+            {
+                IReadOnlyDictionary<string, JsonElement> fido = fidoEl.EnumerateObject().ToDictionary(k => k.Name, k => k.Value);
+                FIDOChallangeSize = fido["challenge_size"].GetInt32();
+                FIDOAttestationType = fido["attestation"].GetString();
+                FIDOTimeout = fido["timeout"].GetInt32();
+                FIDOSiteName = siteName;
+                //Deserailze a 
+                if(fido.TryGetValue("authenticatorSelection", out JsonElement authSel))
+                {
+                    FIDOAuthSelection = authSel.Deserialize<FidoAuthenticatorSelection>();
+                }
+                //Set enabled flag
+                FIDOEnabled = true;
+            }
+        }
+    }
+}