cn.bestwu.api.sign.ApiSignConfiguration.kt Maven / Gradle / Ivy

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api-sign

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package cn.bestwu.api.sign

import org.springframework.beans.factory.annotation.Autowired
import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean
import org.springframework.boot.autoconfigure.condition.ConditionalOnWebApplication
import org.springframework.boot.context.properties.EnableConfigurationProperties
import org.springframework.context.annotation.*
import org.springframework.core.type.AnnotatedTypeMetadata
import org.springframework.util.StringUtils
import org.springframework.web.servlet.config.annotation.InterceptorRegistry
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer

/**
 * 接口签名 自动配置

 * @author Peter Wu
 */
@Configuration
@ConditionalOnWebApplication
@Conditional(ApiSignConfiguration.ApiSignCondition::class)
@EnableConfigurationProperties(ApiSignProperties::class)
class ApiSignConfiguration : WebMvcConfigurer {

    @Autowired
    lateinit var properties: ApiSignProperties

    /**
     * @return 默认签名算法
     */
    @Bean
    @ConditionalOnMissingBean(ApiSignAlgorithm::class)
    fun apiSignAlgorithm(): ApiSignAlgorithm {
        return ApiSignAlgorithm(properties)
    }

    @Autowired
    lateinit var apiSignAlgorithm: ApiSignAlgorithm


    override fun addInterceptors(registry: InterceptorRegistry) {
        registry.addInterceptor(ApiSignHandlerInterceptor(apiSignAlgorithm, properties.handlerTypePrefix))
    }

    internal class ApiSignCondition : Condition {

        override fun matches(context: ConditionContext, metadata: AnnotatedTypeMetadata): Boolean {
            return (StringUtils.hasText(context.environment.getProperty("api.sign.client-secret")) || StringUtils.hasText(context.environment.getProperty("api.sign.clientSecret"))) && (StringUtils.hasText(context.environment.getProperty("api.sign.handler-type-prefix")) || StringUtils.hasText(context.environment.getProperty("api.sign.handlerTypePrefix")))
        }
    }
}