Añadido el service TokenGenerator

2 files changed, 47 insertions, 0 deletions

diff --git a/Services/ITokenGenerator.cs b/Services/ITokenGenerator.cs
new file mode 100644
index 0000000..3738f81
--- /dev/null
+++ b/Services/ITokenGenerator.cs
@@ -0,0 +1,8 @@
+using BackendPIA.Models;
+
+namespace BackendPIA.Services {
+    public interface ITokenGenerator {
+        public string Generate(UserAccount user, string role);
+        public string GenerateRefreshToken();
+    }
+}
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diff --git a/Services/TokenGenerator.cs b/Services/TokenGenerator.cs
new file mode 100644
index 0000000..7d9d1ec
--- /dev/null
+++ b/Services/TokenGenerator.cs
@@ -0,0 +1,39 @@
+using Microsoft.IdentityModel.Tokens;
+using System.IdentityModel.Tokens.Jwt;
+using Microsoft.AspNetCore.Identity;
+using System.Text;
+using System.Security.Claims;
+using System.Security.Cryptography;
+using BackendPIA.Models;
+
+namespace BackendPIA.Services {
+    public class TokenGenerator : ITokenGenerator {
+        private readonly string _key;
+        public TokenGenerator(string key) {
+            _key = key;
+        }
+
+        public string Generate(UserAccount user, string role) {
+            var key = new SymmetricSecurityKey(Encoding.UTF8.GetBytes(_key));
+	        var creds = new SigningCredentials(key, SecurityAlgorithms.HmacSha256);
+            var expiration = DateTime.UtcNow.AddMinutes(30);
+            //var issuer = _configuration["Jwt:Issuer"];
+            var claims = new List<Claim> {
+		        new Claim("sid", user.Id),
+		        new Claim("username", user.UserName),
+		        new Claim("email", user.Email),
+                new Claim("role", role)
+	        };
+            var descriptor = new JwtSecurityToken(issuer: null, audience: null, claims: claims, expires: expiration, signingCredentials: creds);
+
+            return new JwtSecurityTokenHandler().WriteToken(descriptor);
+        }
+
+        public string GenerateRefreshToken() {
+            byte[] random_number = new byte[16];
+            RandomNumberGenerator rng = RandomNumberGenerator.Create();
+            rng.GetBytes(random_number);
+            return string.Join("", random_number);
+        }
+    }
+}
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