| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package org.apache.shardingsphere.elasticjob.error.handler.dingtalk; |
| |
| import com.google.common.base.Strings; |
| import com.google.common.collect.ImmutableMap; |
| import com.google.gson.JsonObject; |
| import lombok.SneakyThrows; |
| import lombok.extern.slf4j.Slf4j; |
| import org.apache.http.client.config.RequestConfig; |
| import org.apache.http.client.methods.CloseableHttpResponse; |
| import org.apache.http.client.methods.HttpPost; |
| import org.apache.http.entity.StringEntity; |
| import org.apache.http.impl.client.CloseableHttpClient; |
| import org.apache.http.impl.client.HttpClients; |
| import org.apache.http.util.EntityUtils; |
| import org.apache.shardingsphere.elasticjob.error.handler.JobErrorHandler; |
| import org.apache.shardingsphere.elasticjob.infra.json.GsonFactory; |
| |
| import javax.crypto.Mac; |
| import javax.crypto.spec.SecretKeySpec; |
| import java.io.IOException; |
| import java.io.PrintWriter; |
| import java.io.StringWriter; |
| import java.io.UnsupportedEncodingException; |
| import java.net.HttpURLConnection; |
| import java.net.URLEncoder; |
| import java.nio.charset.StandardCharsets; |
| import java.security.InvalidKeyException; |
| import java.security.NoSuchAlgorithmException; |
| import java.util.Base64; |
| import java.util.Collections; |
| import java.util.Properties; |
| |
| /** |
| * Job error handler for send error message via dingtalk. |
| */ |
| @Slf4j |
| public final class DingtalkJobErrorHandler implements JobErrorHandler { |
| |
| private final CloseableHttpClient httpclient = HttpClients.createDefault(); |
| |
| public DingtalkJobErrorHandler() { |
| registerShutdownHook(); |
| } |
| |
| private void registerShutdownHook() { |
| Runtime.getRuntime().addShutdownHook(new Thread("DingtalkJobErrorHandler Shutdown-Hook") { |
| |
| @SneakyThrows |
| @Override |
| public void run() { |
| log.info("Shutting down HTTP client..."); |
| httpclient.close(); |
| } |
| }); |
| } |
| |
| @Override |
| public void handleException(final String jobName, final Properties props, final Throwable cause) { |
| HttpPost httpPost = createHTTPPostMethod(jobName, cause, createConfiguration(props)); |
| try (CloseableHttpResponse response = httpclient.execute(httpPost)) { |
| int status = response.getStatusLine().getStatusCode(); |
| if (HttpURLConnection.HTTP_OK == status) { |
| JsonObject responseMessage = GsonFactory.getGson().fromJson(EntityUtils.toString(response.getEntity()), JsonObject.class); |
| if (!"0".equals(responseMessage.get("errcode").getAsString())) { |
| log.info("An exception has occurred in Job '{}', But failed to send alert by Dingtalk because of: {}", jobName, responseMessage.get("errmsg").getAsString(), cause); |
| } else { |
| log.info("An exception has occurred in Job '{}', Notification to Dingtalk was successful.", jobName, cause); |
| } |
| } else { |
| log.error("An exception has occurred in Job '{}', But failed to send alert by Dingtalk because of: Unexpected response status: {}", jobName, status, cause); |
| } |
| } catch (final IOException ex) { |
| cause.addSuppressed(ex); |
| log.error("An exception has occurred in Job '{}', But failed to send alert by Dingtalk because of", jobName, cause); |
| } |
| } |
| |
| private DingtalkConfiguration createConfiguration(final Properties props) { |
| String webhook = props.getProperty(DingtalkPropertiesConstants.WEBHOOK); |
| String keyword = props.getProperty(DingtalkPropertiesConstants.KEYWORD); |
| String secret = props.getProperty(DingtalkPropertiesConstants.SECRET); |
| int connectTimeoutMilliseconds = Integer.parseInt( |
| props.getProperty(DingtalkPropertiesConstants.CONNECT_TIMEOUT_MILLISECONDS, DingtalkPropertiesConstants.DEFAULT_CONNECT_TIMEOUT_MILLISECONDS)); |
| int readTimeoutMilliseconds = Integer.parseInt(props.getProperty(DingtalkPropertiesConstants.READ_TIMEOUT_MILLISECONDS, DingtalkPropertiesConstants.DEFAULT_READ_TIMEOUT_MILLISECONDS)); |
| return new DingtalkConfiguration(webhook, keyword, secret, connectTimeoutMilliseconds, readTimeoutMilliseconds); |
| } |
| |
| private HttpPost createHTTPPostMethod(final String jobName, final Throwable cause, final DingtalkConfiguration config) { |
| HttpPost result = new HttpPost(getURL(config)); |
| RequestConfig requestConfig = RequestConfig.custom().setConnectTimeout(config.getConnectTimeoutMilliseconds()).setSocketTimeout(config.getReadTimeoutMilliseconds()).build(); |
| result.setConfig(requestConfig); |
| StringEntity entity = new StringEntity(getJsonParameter(getErrorMessage(jobName, config, cause)), StandardCharsets.UTF_8); |
| entity.setContentEncoding(StandardCharsets.UTF_8.name()); |
| entity.setContentType("application/json"); |
| result.setEntity(entity); |
| return result; |
| } |
| |
| private String getURL(final DingtalkConfiguration config) { |
| return Strings.isNullOrEmpty(config.getSecret()) ? config.getWebhook() : getSignedURL(config); |
| } |
| |
| private String getSignedURL(final DingtalkConfiguration config) { |
| long timestamp = System.currentTimeMillis(); |
| return String.format("%s×tamp=%s&sign=%s", config.getWebhook(), timestamp, generateSignature(timestamp, config.getSecret())); |
| } |
| |
| @SneakyThrows({NoSuchAlgorithmException.class, UnsupportedEncodingException.class, InvalidKeyException.class}) |
| private String generateSignature(final long timestamp, final String secret) { |
| String algorithmName = "HmacSHA256"; |
| Mac mac = Mac.getInstance(algorithmName); |
| mac.init(new SecretKeySpec(secret.getBytes(StandardCharsets.UTF_8), algorithmName)); |
| byte[] signData = mac.doFinal((timestamp + "\n" + secret).getBytes(StandardCharsets.UTF_8)); |
| return URLEncoder.encode(new String(Base64.getEncoder().encode(signData)), StandardCharsets.UTF_8.name()); |
| } |
| |
| private String getJsonParameter(final String message) { |
| return GsonFactory.getGson().toJson(ImmutableMap.of("msgtype", "text", "text", Collections.singletonMap("content", message))); |
| } |
| |
| private String getErrorMessage(final String jobName, final DingtalkConfiguration config, final Throwable cause) { |
| StringWriter writer = new StringWriter(); |
| cause.printStackTrace(new PrintWriter(writer, true)); |
| String result = String.format("Job '%s' exception occur in job processing, caused by %s", jobName, writer.toString()); |
| if (!Strings.isNullOrEmpty(config.getKeyword())) { |
| result = config.getKeyword().concat(result); |
| } |
| return result; |
| } |
| |
| @Override |
| public String getType() { |
| return "DINGTALK"; |
| } |
| } |