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169
collector/src/main/java/org/apache/hertzbeat/collector/collect/imap/ImapCollectImpl.java
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| /* | ||
| * 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.hertzbeat.collector.collect.imap; | ||
|
|
||
| import java.io.IOException; | ||
| import java.nio.charset.StandardCharsets; | ||
| import java.util.HashMap; | ||
| import java.util.List; | ||
| import java.util.Map; | ||
| import java.util.Objects; | ||
| import lombok.extern.slf4j.Slf4j; | ||
| import org.apache.commons.net.imap.IMAPClient; | ||
| import org.apache.commons.net.imap.IMAPSClient; | ||
| import org.apache.hertzbeat.collector.collect.AbstractCollect; | ||
| import org.apache.hertzbeat.collector.dispatch.DispatchConstants; | ||
| import org.apache.hertzbeat.collector.util.CollectUtil; | ||
| import org.apache.hertzbeat.common.constants.CommonConstants; | ||
| import org.apache.hertzbeat.common.entity.job.Metrics; | ||
| import org.apache.hertzbeat.common.entity.job.protocol.ImapProtocol; | ||
| import org.apache.hertzbeat.common.entity.message.CollectRep; | ||
| import org.apache.hertzbeat.common.util.CommonUtil; | ||
| import org.springframework.util.Assert; | ||
|
|
||
| /** | ||
| * imap collect | ||
| */ | ||
| @Slf4j | ||
| public class ImapCollectImpl extends AbstractCollect { | ||
|
|
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| private static final String UTF_7_X = "X-MODIFIED-UTF-7"; | ||
| private static final String STATUS = "STATUS"; | ||
| private static final String STATUS_COMMAND = "(MESSAGES RECENT UNSEEN)"; | ||
| private static final String MESSAGES = "MESSAGES"; | ||
| private static final String RECENT = "RECENT"; | ||
| private static final String UNSEEN = "UNSEEN"; | ||
| private static final String RESPONSETIME = "responseTime"; | ||
| private static final String totalMessageCount = "TotalMessageCount"; | ||
| private static final String recentMessageCount = "RecentMessageCount"; | ||
| private static final String unseenMessageCount = "UnseenMessageCount"; | ||
|
|
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| @Override | ||
| public void preCheck(Metrics metrics) throws IllegalArgumentException { | ||
| ImapProtocol imapProtocol = metrics.getImap(); | ||
| Assert.notNull(metrics, "IMAP collect must has Imap params"); | ||
| Assert.notNull(metrics.getImap(), "IMAP collect must has Imap params"); | ||
| Assert.hasText(imapProtocol.getHost(), "IMAP host is required"); | ||
| Assert.hasText(imapProtocol.getPort(), "IMAP port is required"); | ||
| Assert.hasText(imapProtocol.getEmail(), "IMAP email is required"); | ||
| Assert.hasText(imapProtocol.getAuthorize(), "IMAP authorize code is required"); | ||
| Assert.hasText(imapProtocol.getFolderName(), "IMAP folder name is required"); | ||
| } | ||
|
|
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| @Override | ||
| public void collect(CollectRep.MetricsData.Builder builder, long monitorId, String app, Metrics metrics) { | ||
| long startTime = System.currentTimeMillis(); | ||
| ImapProtocol imapProtocol = metrics.getImap(); | ||
| IMAPClient imapClient = null; | ||
| boolean ssl = Boolean.parseBoolean(imapProtocol.getSsl()); | ||
|
|
||
| try { | ||
| imapClient = createImapClient(imapProtocol, ssl); | ||
| // if Connected, then collect metrics | ||
| if (imapClient.isConnected()) { | ||
| long responseTime = System.currentTimeMillis() - startTime; | ||
| String folderName = imapProtocol.getFolderName(); | ||
| collectImapMetrics(builder, imapClient, metrics.getAliasFields(), folderName, responseTime); | ||
| } else { | ||
| builder.setCode(CollectRep.Code.UN_CONNECTABLE); | ||
| builder.setMsg("Peer connect failed，Timeout " + imapProtocol.getTimeout() + "ms"); | ||
| } | ||
| } catch (Exception e) { | ||
| String errorMsg = CommonUtil.getMessageFromThrowable(e); | ||
| log.error(errorMsg); | ||
| builder.setCode(CollectRep.Code.FAIL); | ||
| builder.setMsg(errorMsg); | ||
| } finally { | ||
| if (imapClient != null) { | ||
| try { | ||
| imapClient.logout(); | ||
| imapClient.disconnect(); | ||
| } catch (IOException e) { | ||
| String errorMsg = CommonUtil.getMessageFromThrowable(e); | ||
| log.error(errorMsg); | ||
| builder.setCode(CollectRep.Code.FAIL); | ||
| builder.setMsg(errorMsg); | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
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| @Override | ||
| public String supportProtocol() { | ||
| return DispatchConstants.PROTOCOL_IMAP; | ||
| } | ||
|
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| private IMAPClient createImapClient(ImapProtocol imapProtocol, boolean ssl) throws Exception { | ||
| IMAPClient imapClient = null; | ||
| // determine whether to use SSL-encrypted connections | ||
| imapClient = new IMAPSClient(true); | ||
| if (!ssl) { | ||
| imapClient = new IMAPClient(); | ||
| } | ||
| // set timeout | ||
| int timeout = Integer.parseInt(imapProtocol.getTimeout()); | ||
| if (timeout > 0) { | ||
| imapClient.setConnectTimeout(timeout); | ||
| } | ||
| //set Charset | ||
| imapClient.setCharset(StandardCharsets.US_ASCII); | ||
| // connect to the IMAP server | ||
| String host = imapProtocol.getHost(); | ||
| int port = Integer.parseInt(imapProtocol.getPort()); | ||
| imapClient.connect(host, port); | ||
| // validate credentials | ||
| String email = imapProtocol.getEmail(); | ||
| String authorize = imapProtocol.getAuthorize(); | ||
| boolean isAuthenticated = imapClient.login(email, authorize); | ||
| if (!isAuthenticated) { | ||
| throw new Exception("IMAP client authentication failed"); | ||
| } | ||
| return imapClient; | ||
|
|
||
| } | ||
|
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| private void collectImapMetrics(CollectRep.MetricsData.Builder builder, IMAPClient imapClient, List<String> aliasFields, | ||
| String folderName, long responseTime) throws Exception { | ||
| Map<String, String> resultsMap = new HashMap<>(); | ||
| resultsMap.put(RESPONSETIME, String.valueOf(responseTime)); | ||
| imapClient.sendCommand(STATUS + " \"" + CollectUtil.stringEncodeUtf7String(folderName, UTF_7_X) + "\" " + STATUS_COMMAND); | ||
| String[] response = imapClient.getReplyString().split("\\s+|\\(|\\)"); | ||
| for (int i = 0; i < response.length; i++) { | ||
| switch (response[i]) { | ||
| case MESSAGES: | ||
| resultsMap.put(folderName + totalMessageCount, response[i + 1]); | ||
| break; | ||
| case RECENT: | ||
| resultsMap.put(folderName + recentMessageCount, response[i + 1]); | ||
| break; | ||
| case UNSEEN: | ||
| resultsMap.put(folderName + unseenMessageCount, response[i + 1]); | ||
| break; | ||
| default: | ||
| break; | ||
| } | ||
| } | ||
|
|
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| CollectRep.ValueRow.Builder valueRowBuilder = CollectRep.ValueRow.newBuilder(); | ||
| for (String field : aliasFields) { | ||
| String fieldValue = resultsMap.get(field); | ||
| valueRowBuilder.addColumns(Objects.requireNonNullElse(fieldValue, CommonConstants.NULL_VALUE)); | ||
| } | ||
| builder.addValues(valueRowBuilder.build()); | ||
| } | ||
| } |
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