Initial commit: mail-server with WebFlux backend and Angular v22 Synthwave frontend

Co-authored-by: Junie <junie@jetbrains.com>
2026-11-05 01:07:29 +01:00
commit 0339413d6e
78 changed files with 6808 additions and 0 deletions
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+package com.mailserver.util;
+
+import io.jsonwebtoken.Claims;
+import io.jsonwebtoken.Jwts;
+import io.jsonwebtoken.security.Keys;
+import javax.crypto.SecretKey;
+import java.nio.charset.StandardCharsets;
+import java.util.Date;
+
+public class JwtUtils {
+
+    private static final long EXPIRATION_MS = 1000L * 60 * 60 * 24; // 24 часа
+
+    private final SecretKey signingKey;
+
+    public JwtUtils(String secret) {
+        this.signingKey = Keys.hmacShaKeyFor(secret.getBytes(StandardCharsets.UTF_8));
+    }
+
+    public String generateToken(String email) {
+        Date now = new Date();
+        Date expiry = new Date(now.getTime() + EXPIRATION_MS);
+
+        return Jwts.builder()
+                .subject(email)
+                .issuedAt(now)
+                .expiration(expiry)
+                .signWith(signingKey)
+                .compact();
+    }
+
+    public String getEmailFromToken(String token) {
+        Claims claims = Jwts.parser()
+                .verifyWith(signingKey)
+                .build()
+                .parseSignedClaims(token)
+                .getPayload();
+        return claims.getSubject();
+    }
+
+    public boolean isValidToken(String token) {
+        try {
+            Jwts.parser()
+                    .verifyWith(signingKey)
+                    .build()
+                    .parseSignedClaims(token);
+            return true;
+        } catch (Exception e) {
+            return false;
+        }
+    }
+}