网关服务增加token刷新机制

timeline-gateway-service/src/main/java/com/timeline/gateway/filter/AuthenticationFilter.java

@@ -35,6 +35,7 @@ public class AuthenticationFilter implements GlobalFilter, Ordered {
     private RedisUtils redisUtils;
     
     private static final String TOKEN_BLACKLIST_PREFIX = "auth:token:blacklist:";
+    private static final String TOKEN_ACTIVE_PREFIX = "auth:token:active:";
     
     // 需要跳过认证的路径列表
     private static final List<String> WHITELIST_PATHS = Arrays.asList(
@@ -55,33 +56,6 @@ public class AuthenticationFilter implements GlobalFilter, Ordered {
             return chain.filter(exchange);
         }
         
-        // WebSocket 连接需要 token，但不强制要求（允许通过，由下游服务处理）
-        if (path.startsWith("/user/ws")) {
-            String token = extractToken(request);
-            if (token != null && !token.isEmpty()) {
-                // 如果有 token，验证并传递用户信息
-                if (jwtUtils.validateToken(token) && !isBlacklisted(token)) {
-                    try {
-                        Claims claims = jwtUtils.getClaimsFromToken(token);
-                        if (claims != null && !jwtUtils.isTokenExpired(claims)) {
-                            String userId = jwtUtils.getUserIdFromClaims(claims);
-                            String username = jwtUtils.getUsernameFromClaims(claims);
-                            ServerHttpRequest mutatedRequest = request.mutate()
-                                    .header("X-User-Id", userId)
-                                    .header("X-Username", username)
-                                    .build();
-                            ServerWebExchange mutatedExchange = exchange.mutate().request(mutatedRequest).build();
-                            return chain.filter(mutatedExchange);
-                        }
-                    } catch (Exception e) {
-                        // token 验证失败，继续传递（由下游服务处理）
-                    }
-                }
-            }
-            // 即使没有 token 也允许通过，由下游服务决定是否接受连接
-            return chain.filter(exchange);
-        }
-        
         // 从请求头或查询参数中获取token
         String token = extractToken(request);
         
@@ -104,6 +78,9 @@ public class AuthenticationFilter implements GlobalFilter, Ordered {
             return handleUnauthorized(exchange, "Token已过期");
         }
         
+        // 刷新token有效期
+        refreshTokenExpiration(token);
+        
         // 将用户信息添加到请求头中传递给下游服务
         String userId = jwtUtils.getUserIdFromClaims(claims);
         String username = jwtUtils.getUsernameFromClaims(claims);
@@ -142,7 +119,7 @@ public class AuthenticationFilter implements GlobalFilter, Ordered {
             String[] params = query.split("&");
             for (String param : params) {
                 if (param.startsWith("Authorization=")) {
-                    return param.substring(21);
+                    return param.substring("Authorization=".length());
                 }
             }
         }
@@ -155,6 +132,29 @@ public class AuthenticationFilter implements GlobalFilter, Ordered {
         return Boolean.TRUE.equals(exists);
     }
     
+    // 添加刷新token有效期的方法
+    private void refreshTokenExpiration(String token) {
+        try {
+            // 获取token的剩余有效时间
+            long remainingSeconds = jwtUtils.getRemainingSeconds(token);
+            
+            // 获取总过期时间
+            long totalExpiration = jwtUtils.getAccessExpirationSeconds() != null ? jwtUtils.getAccessExpirationSeconds() : 900L;
+            
+            // 定义一个阈值，当剩余时间少于总有效期的1/3时，刷新token在Redis中的活跃状态
+            long refreshThreshold = totalExpiration / 3;
+            
+            if (remainingSeconds < refreshThreshold) {
+                // 在Redis中设置活跃token的记录，过期时间为完整的token有效期
+                // 这样可以在用户持续活动时保持会话活跃
+                redisUtils.expire(TOKEN_ACTIVE_PREFIX + token, totalExpiration);
+                log.debug("Token expiration refreshed for: {}, remaining seconds: {}", token, remainingSeconds);
+            }
+        } catch (Exception e) {
+            log.warn("Failed to refresh token expiration: {}", e.getMessage());
+        }
+    }
+    
     @SuppressWarnings("null")
     private Mono<Void> handleUnauthorized(ServerWebExchange exchange, String message) {
         ServerHttpResponse response = exchange.getResponse();

timeline-gateway-service/src/main/java/com/timeline/gateway/utils/JwtUtils.java

@@ -16,6 +16,9 @@ public class JwtUtils {
     @Value("${jwt.secret:timelineSecretKey}")
     private String secret;
 
+    @Value("${jwt.access-expiration:900}")
+    private Long accessExpirationSeconds;
+
     private byte[] secretBytes() {
         return secret.getBytes(StandardCharsets.UTF_8);
     }
@@ -64,4 +67,33 @@ public class JwtUtils {
         }
         return claims.getSubject();
     }
+
+    // 添加获取过期时间的方法
+    public Date getExpirationDateFromToken(String token) {
+        Claims claims = getClaimsFromToken(token);
+        if (claims != null) {
+            return claims.getExpiration();
+        }
+        return null;
+    }
+
+    // 添加获取剩余有效期的方法
+    public long getRemainingSeconds(String token) {
+        try {
+            Date exp = getExpirationDateFromToken(token);
+            if (exp == null) {
+                return 0L;
+            }
+            long diff = exp.getTime() - System.currentTimeMillis();
+            // 直接计算秒数而不是使用TimeUnit
+            return diff > 0 ? diff / 1000 : 0L;
+        } catch (Exception e) {
+            return 0L;
+        }
+    }
+    
+    // 添加获取访问令牌过期秒数的方法
+    public Long getAccessExpirationSeconds() {
+        return accessExpirationSeconds;
+    }
 }