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title: Custom Sign Algorithm keywords: [“Custom Sign”] description: specify sign plugins for examination

Description

• Users can customize the signature authentication algorithm to achieve verification.

Extension

• The default implementation is org.apache.shenyu.plugin.sign.service.DefaultSignService.
• Declare a new class named CustomSignService and implements org.apache.shenyu.plugin.sign.api.SignService.

 public interface SignService {
 
     /**
      * Sign verify pair.
      *
      * @param exchange   the exchange
      * @return the pair
      */
     Pair<Boolean, String> signVerify(ServerWebExchange exchange);
 }

• When returning true in Pair, the sign verification passes. If there's false, the String in Pair will be return to the frontend to show.
• Register defined class as a Spring Bean.

   @Bean
   public SignService customSignService() {
         return new CustomSignService();
   }

Others

If you only want to modify the signature algorithm, refer to the following.

• The default implementation of the signature algorithm is org.apache.shenyu.common.utils.SignUtils#generateSign.
• Declare a new class named CustomSignProvider and implements org.apache.shenyu.plugin.sign.api.SignProvider.

/**
 * The Sign plugin sign provider.
 */
public interface SignProvider {

    /**
     * acquired sign.
     *
     * @param signKey sign key
     * @param params  params
     * @return sign
     */
    String generateSign(String signKey, Map<String, String> params);
}

• Put CustomSignProvider to Spring IoC

@Bean
public SignProvider customSignProvider() {
    return new CustomSignProvider();
}