backend complete

AobaServer/Utils/Extensions.cs

@@ -1,6 +1,15 @@
-using MongoDB.Bson;
+using AobaCore.Models;
+
+using AobaServer.Models;
+
+using Microsoft.IdentityModel.Tokens;
+
+using MongoDB.Bson;
 using MongoDB.Driver;
 
+using System.IdentityModel.Tokens.Jwt;
+using System.Security.Claims;
+
 namespace AobaServer.Utils;
 
 public static class Extensions
@@ -14,5 +23,18 @@ public static class Extensions
 		return ObjectId.Empty;
 	}
 
-	
+	public static string GetToken(this User user, AuthInfo authInfo)
+	{
+		var handler = new JwtSecurityTokenHandler();
+		var signCreds = new SigningCredentials(new SymmetricSecurityKey(authInfo.SecureKey), SecurityAlgorithms.HmacSha256);
+		var identity = user.GetIdentity();
+		var token = handler.CreateEncodedJwt(authInfo.Issuer, authInfo.Audience, identity, notBefore: DateTime.Now, expires: null, issuedAt: DateTime.Now, signCreds);
+		return token;
+	}
+
+
+	public static ObjectId GetId(this ClaimsPrincipal user)
+	{
+		return user.FindFirstValue(ClaimTypes.NameIdentifier).ToObjectId();
+	}
 }