wxz
4 years ago
3 changed files with 295 additions and 209 deletions
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package com.epmet.filter; |
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import com.alibaba.fastjson.JSON; |
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import com.epmet.auth.ExternalAuthProcessor; |
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import com.epmet.auth.InternalAuthProcessor; |
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import com.epmet.commons.tools.constant.AppClientConstant; |
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import com.epmet.commons.tools.exception.EpmetErrorCode; |
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import com.epmet.commons.tools.exception.ExceptionUtils; |
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import com.epmet.commons.tools.exception.RenException; |
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import com.epmet.commons.tools.utils.IpUtils; |
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import com.epmet.commons.tools.utils.Result; |
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import com.epmet.constant.AuthTypeConstant; |
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import com.epmet.constant.TokenHeaderKeyConstant; |
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import com.epmet.openapi.constant.AuthTypes; |
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import com.epmet.openapi.constant.RequestParamKeys; |
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import com.epmet.utils.ServerHttpRequestUtils; |
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import lombok.extern.slf4j.Slf4j; |
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import org.apache.commons.collections4.CollectionUtils; |
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import org.apache.commons.lang3.StringUtils; |
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import org.springframework.cloud.gateway.filter.GatewayFilter; |
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import org.springframework.cloud.gateway.filter.GatewayFilterChain; |
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import org.springframework.core.io.buffer.DataBuffer; |
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import org.springframework.http.HttpHeaders; |
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import org.springframework.http.HttpStatus; |
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import org.springframework.http.MediaType; |
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import org.springframework.http.server.reactive.ServerHttpRequest; |
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import org.springframework.util.MultiValueMap; |
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import org.springframework.web.server.ServerWebExchange; |
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import reactor.core.publisher.Flux; |
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import reactor.core.publisher.Mono; |
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import java.nio.charset.StandardCharsets; |
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import java.util.List; |
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import java.util.Map; |
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/** |
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* @Description Gateway过滤器，可用于认证，请求相关日志打印 |
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* @author wxz |
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* @date 2021.10.12 09:10:02 |
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*/ |
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@Slf4j |
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public class EpmetGatewayFilter implements GatewayFilter { |
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private CpAuthGatewayFilterFactory.CpAuthConfig config; |
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private InternalAuthProcessor internalAuthProcessor; |
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private ExternalAuthProcessor externalAuthProcessor; |
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public EpmetGatewayFilter(CpAuthGatewayFilterFactory.CpAuthConfig config, |
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InternalAuthProcessor internalAuthProcessor, |
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ExternalAuthProcessor externalAuthProcessor) { |
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this.config = config; |
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this.internalAuthProcessor = internalAuthProcessor; |
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this.externalAuthProcessor = externalAuthProcessor; |
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} |
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@Override |
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public Mono<Void> filter(ServerWebExchange exchange, GatewayFilterChain chain) { |
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try { |
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if (!config.isEnabled()) { |
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return chain.filter(exchange); |
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} |
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return doFilter(exchange, chain); |
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} catch (RenException re) { |
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// 人为抛出，则携带错误码和错误信息响应给前端
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log.error("EpmetGatewayFilter认证出错RenException，错误信息:{}", ExceptionUtils.getErrorStackTrace(re)); |
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return response(exchange, new Result<>().error(re.getCode(), re.getMessage())); |
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} catch (Exception t) { |
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// 其他非人为抛出异常，打印日志，返回"服务器开小差..."给前端
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log.error("EpmetGatewayFilter认证出错Exception，错误信息:{}", ExceptionUtils.getErrorStackTrace(t)); |
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return response(exchange, new Result<>().error(EpmetErrorCode.SERVER_ERROR.getCode())); |
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} |
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} |
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/** |
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* @description 执行请求过滤和验证 |
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* |
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* @param exchange |
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* @param chain |
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* @return |
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* @author wxz |
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* @date 2021.10.12 09:16:15 |
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*/ |
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private Mono<Void> doFilter(ServerWebExchange exchange, GatewayFilterChain chain) { |
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ServerHttpRequest request = exchange.getRequest(); |
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//0.添加流水号
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String tranSerial = getTranserialFromRequestHeader(request); |
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if (StringUtils.isBlank(tranSerial)) { |
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tranSerial = generateTransactionSerial(); |
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// 设置当前线程名
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request.mutate().header(AppClientConstant.TRANSACTION_SERIAL_KEY, new String[]{tranSerial}); |
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} |
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Thread.currentThread().setName(tranSerial); |
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//1.打印请求信息
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logRequest(request); |
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//2.获取请求路径，参数
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String requestUri = request.getPath().pathWithinApplication().value(); |
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MultiValueMap<String, String> queryParams = request.getQueryParams(); |
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String queryParamsStr = convertQueryParams2String(queryParams); |
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log.info("当前requestUri=[" + requestUri.concat(queryParamsStr) + "],客户端Id:{}", IpUtils.getClientIp(request)); |
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//3.认证
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String authType = getAuthType(request); |
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log.info("认证类型为:{}", authType); |
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switch (authType) { |
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case AuthTypeConstant.AUTH_TYPE_ALL: |
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externalAuthProcessor.auth(exchange, chain); |
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internalAuthProcessor.auth(exchange, chain); |
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break; |
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case AuthTypeConstant.AUTH_TYPE_EXTERNAL: |
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externalAuthProcessor.auth(exchange, chain); |
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break; |
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case AuthTypeConstant.AUTH_TYPE_INTERNAL: |
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internalAuthProcessor.auth(exchange, chain); |
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break; |
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} |
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return chain.filter(exchange); |
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} |
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/** |
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* @param exchange |
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* @param object |
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* @return |
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* @description 产生Response对象 |
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* @author wxz |
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* @date 2021.10.12 09:00:20 |
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*/ |
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protected Mono<Void> response(ServerWebExchange exchange, Object object) { |
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String json = JSON.toJSONString(object); |
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DataBuffer buffer = exchange.getResponse().bufferFactory().wrap(json.getBytes(StandardCharsets.UTF_8)); |
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exchange.getResponse().getHeaders().setContentType(MediaType.APPLICATION_JSON_UTF8); |
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exchange.getResponse().setStatusCode(HttpStatus.OK); |
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return exchange.getResponse().writeWith(Flux.just(buffer)); |
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} |
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/** |
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* @param request 请求 |
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* @return void |
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* @Description 打印请求头 |
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* @author wxz |
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* @date 2021.08.18 11:18:00 |
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*/ |
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private void logRequest(ServerHttpRequest request) { |
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HttpHeaders headers = request.getHeaders(); |
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StringBuilder sb = new StringBuilder("请求头："); |
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for (Map.Entry<String, List<String>> entry : headers.entrySet()) { |
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String headerKey = entry.getKey(); |
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List<String> headerValue = entry.getValue(); |
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sb.append(headerKey).append(":").append(headerValue).append(","); |
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} |
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log.info(sb.toString()); |
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} |
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/** |
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* @param request |
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* @return java.lang.String |
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* @Description 从request请求头中获取传递过来的流水号 |
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* @author wxz |
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* @date 2021.08.18 15:55:30 |
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*/ |
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private String getTranserialFromRequestHeader(ServerHttpRequest request) { |
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List<String> tranSerials = request.getHeaders().get(AppClientConstant.TRANSACTION_SERIAL_KEY); |
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return CollectionUtils.isEmpty(tranSerials) ? null : tranSerials.get(0); |
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} |
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/** |
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* @return |
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* @Description 将url参数转化为String |
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* @author wxz |
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* @date 2021.08.11 23:12 |
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*/ |
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private String convertQueryParams2String(MultiValueMap<String, String> queryParams) { |
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try { |
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if (queryParams == null || queryParams.size() == 0) { |
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return ""; |
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} |
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StringBuilder sb = new StringBuilder(""); |
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queryParams.entrySet().forEach(entry -> { |
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String key = entry.getKey(); |
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List<String> values = entry.getValue(); |
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String value = ""; |
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if (values != null && values.size() > 0) { |
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value = values.get(0); |
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} |
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sb.append("&").append(key).append("=").append(value); |
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}); |
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String result = sb.toString(); |
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if (result.startsWith("&")) { |
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result = result.substring(1); |
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return "?".concat(result); |
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} |
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return ""; |
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} catch (Exception e) { |
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log.warn("gateway中将url参数转化为String失败，程序继续执行,错误信息:".concat(ExceptionUtils.getErrorStackTrace(e))); |
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return ""; |
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} |
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} |
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/** |
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* 判断需要执行的认证方式(内部应用认证还是外部应用认证) |
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* |
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* @return |
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*/ |
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private String getAuthType(ServerHttpRequest request) { |
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//String requestUri = request.getPath().pathWithinApplication().value();
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// 是否在外部认证列表中(外部认证列表中的url，是对外部应用开放的，只有在这个列表中的url才对外部应用开放)
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//boolean inExtAuthPaths = false;
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//
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//for (String url : cpProperty.getExternalAuthUrls()) {
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// if (antPathMatcher.match(url, requestUri)) {
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// inExtAuthPaths = true;
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// }
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//}
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String authType = ServerHttpRequestUtils.getRequestParam(request, RequestParamKeys.AUTH_TYPE); |
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if (StringUtils.isNotBlank(authType) && AuthTypes.TAKE_TOKEN.equals(authType)) { |
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return AuthTypeConstant.AUTH_TYPE_EXTERNAL; |
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} |
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boolean needExternal = StringUtils.isNotBlank(request.getHeaders().getFirst(TokenHeaderKeyConstant.ACCESS_TOKEN_HEADER_KEY)); |
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boolean needInternal = StringUtils.isNotBlank(request.getHeaders().getFirst(TokenHeaderKeyConstant.AUTHORIZATION_TOKEN_HEADER_KEY)); |
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if (needExternal && needInternal) { |
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return AuthTypeConstant.AUTH_TYPE_ALL; |
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} |
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if (needExternal) { |
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// url对外部应用开放，并且头里面有AccessToken，那么走外部应用认证
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return AuthTypeConstant.AUTH_TYPE_EXTERNAL; |
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} |
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return AuthTypeConstant.AUTH_TYPE_INTERNAL; |
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} |
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/** |
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* 获取事务流水号 |
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* |
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* @return |
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*/ |
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public String generateTransactionSerial() { |
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String[] letterPool = {"a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l", "m", "n" |
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, "o", "p", "q", "r", "s", "t", "u", "v", "w", "x", "y", "z"}; |
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StringBuilder sb = new StringBuilder(); |
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for (int i = 0; i < 2; i++) { |
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sb.append(letterPool[(int) (Math.random() * 25)]); |
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} |
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sb.append(System.currentTimeMillis()); |
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return sb.toString(); |
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} |
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} |
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@ -0,0 +1,27 @@ |
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package com.epmet.healthcheck; |
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|
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import com.epmet.commons.tools.utils.Result; |
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import org.springframework.stereotype.Component; |
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import org.springframework.web.bind.annotation.PostMapping; |
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import org.springframework.web.bind.annotation.RequestMapping; |
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import org.springframework.web.bind.annotation.RestController; |
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/** |
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* @Description 健康检查。gateway中的/api前缀只用于匹配转发路由，自身的Controller的前缀为/ |
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* @author wxz |
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* @date 2021.10.11 17:56:34 |
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*/ |
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@RestController |
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@RequestMapping("/gateway/healthcheck") |
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public class HealthCheckController { |
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/** |
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* http健康检查 |
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* @return |
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*/ |
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@PostMapping("http") |
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public Result httpHealthCheck() { |
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return new Result(); |
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} |
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} |
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