318 lines
17 KiB
Java
318 lines
17 KiB
Java
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/*
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* This file is part of the Wildfire Chat package.
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* (c) Heavyrain2012 <[email protected]>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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package io.moquette.imhandler;
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import cn.wildfirechat.pojos.MessagePayload;
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import cn.wildfirechat.pojos.OutputClient;
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import cn.wildfirechat.proto.ProtoConstants;
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import cn.wildfirechat.proto.WFCMessage;
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import com.google.gson.Gson;
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import com.hazelcast.util.StringUtil;
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import io.moquette.BrokerConstants;
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import io.moquette.persistence.MemorySessionStore;
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import io.moquette.spi.impl.Qos1PublishHandler;
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import io.netty.buffer.ByteBuf;
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import cn.wildfirechat.common.ErrorCode;
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import io.netty.buffer.Unpooled;
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import win.liyufan.im.*;
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import java.util.Collection;
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import java.util.HashSet;
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import java.util.Set;
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import static cn.wildfirechat.common.ErrorCode.ERROR_CODE_SUCCESS;
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@Handler(value = IMTopic.SendMessageTopic)
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public class SendMessageHandler extends IMHandler<WFCMessage.Message> {
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private int mSensitiveType = 0; //命中敏感词时，0 失败，1 吞掉， 2 敏感词替换成*。
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private String mForwardUrl = null;
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private String mSensitiveMessageForwardUrl = null;
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private Set<Integer> mForwardMessageTypes = new HashSet<>();
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private Set<Integer> mForwardExcludeMessageTypes = new HashSet<>();
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private String mMentionForwardUrl = null;
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private int mBlacklistStrategy = 0; //黑名单中时，0失败，1吞掉。
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private boolean mNoForwardAdminMessage = false;
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private String mRemoteSensitiveServerUrl = null;
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private Set<Integer> mRemoteSensitiveMessageTypes;
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private boolean mWaitRemoteSensitiveServerResponse = false;
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public SendMessageHandler() {
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super();
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mForwardUrl = mServer.getConfig().getProperty(BrokerConstants.MESSAGE_Forward_Url);
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if (!StringUtil.isNullOrEmpty(mForwardUrl)) {
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String forwardTypes = mServer.getConfig().getProperty(BrokerConstants.MESSAGE_Forward_Types);
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parseTypes(mForwardMessageTypes, forwardTypes);
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String excludeTypes = mServer.getConfig().getProperty(BrokerConstants.MESSAGE_Forward_Exclude_Types);
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parseTypes(mForwardExcludeMessageTypes, excludeTypes);
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}
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mSensitiveMessageForwardUrl = mServer.getConfig().getProperty(BrokerConstants.MESSAGE_Sensitive_Forward_Url);
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mMentionForwardUrl = mServer.getConfig().getProperty(BrokerConstants.MESSAGE_MentionMsg_Forward_Url);
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try {
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mSensitiveType = Integer.parseInt(mServer.getConfig().getProperty(BrokerConstants.SENSITIVE_Filter_Type));
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} catch (Exception e) {
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e.printStackTrace();
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Utility.printExecption(LOG, e);
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}
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try {
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mBlacklistStrategy = Integer.parseInt(mServer.getConfig().getProperty(BrokerConstants.MESSAGE_Blacklist_Strategy));
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} catch (Exception e) {
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e.printStackTrace();
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Utility.printExecption(LOG, e);
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}
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try {
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mRemoteSensitiveServerUrl = mServer.getConfig().getProperty(BrokerConstants.SENSITIVE_Remote_Server_URL);
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if(!StringUtil.isNullOrEmpty(mRemoteSensitiveServerUrl)) {
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mWaitRemoteSensitiveServerResponse = Boolean.parseBoolean(mServer.getConfig().getProperty(BrokerConstants.SENSITIVE_Remote_Fail_When_Matched, "false"));
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String types = mServer.getConfig().getProperty(BrokerConstants.SENSITIVE_Remote_Message_Type, "");
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mRemoteSensitiveMessageTypes = new HashSet<>();
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if(!StringUtil.isNullOrEmpty(types)) {
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String[] ts = types.split(",");
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for (String t:ts) {
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mRemoteSensitiveMessageTypes.add(Integer.parseInt(t.trim()));
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}
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}
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}
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} catch (Exception e) {
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e.printStackTrace();
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Utility.printExecption(LOG, e);
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}
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try {
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mNoForwardAdminMessage = Boolean.parseBoolean(mServer.getConfig().getProperty(BrokerConstants.MESSAGE_NO_Forward_Admin_Message, "false"));
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} catch (Exception e) {
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e.printStackTrace();
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Utility.printExecption(LOG, e);
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}
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}
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private void parseTypes(Collection<Integer> collection, String types) {
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try {
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if (!StringUtil.isNullOrEmpty(types)) {
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String[] tss = types.split(",");
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for (String ts:tss) {
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if(ts.contains("-")) {
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String[] ss = ts.split("-");
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if(ss.length == 2) {
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int begin = Integer.parseInt(ss[0]);
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int end = Integer.parseInt(ss[1]);
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for (int i = begin; i <= end ; i++) {
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collection.add(i);
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}
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}
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} else {
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collection.add(Integer.parseInt(ts.trim()));
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}
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}
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}
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} catch (Exception e) {
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e.printStackTrace();
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}
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}
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@Override
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public ErrorCode action(ByteBuf ackPayload, String clientID, String fromUser, ProtoConstants.RequestSourceType requestSourceType, WFCMessage.Message message, Qos1PublishHandler.IMCallback callback) {
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ErrorCode errorCode = ErrorCode.ERROR_CODE_SUCCESS;
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boolean isAdmin = requestSourceType == ProtoConstants.RequestSourceType.Request_From_Admin;
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if (message != null) {
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boolean ignoreMsg = false;
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if (!isAdmin) { //admin do not check the right
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// 不能在端上直接发送撤回和群通知
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if (message.getContent().getType() == 80 || message.getContent().getType() == 81 || (message.getContent().getType() >= 100 && message.getContent().getType() < 200)) {
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return ErrorCode.INVALID_PARAMETER;
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}
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if(m_messagesStore.getClientForbiddenSendTypes().contains(message.getContent().getType())) {
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return ErrorCode.ERROR_CODE_NOT_RIGHT;
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}
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int userStatus = m_messagesStore.getUserStatus(fromUser);
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if (userStatus == ProtoConstants.UserStatus.Muted || userStatus == ProtoConstants.UserStatus.Forbidden) {
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if(!m_messagesStore.getGlobalMuteExceptionTypes().contains(message.getContent().getType())) {
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return ErrorCode.ERROR_CODE_FORBIDDEN_SEND_MSG;
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}
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}
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if (message.getConversation().getType() == ProtoConstants.ConversationType.ConversationType_Private) {
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if(!m_messagesStore.getBlackListExceptionTypes().contains(message.getContent().getType())) {
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errorCode = m_messagesStore.isAllowUserMessage(message.getConversation().getTarget(), fromUser);
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if (errorCode != ErrorCode.ERROR_CODE_SUCCESS) {
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if (errorCode == ErrorCode.ERROR_CODE_IN_BLACK_LIST && mBlacklistStrategy != ProtoConstants.BlacklistStrategy.Message_Reject) {
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ignoreMsg = true;
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errorCode = ErrorCode.ERROR_CODE_SUCCESS;
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} else {
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return errorCode;
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}
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}
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}
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userStatus = m_messagesStore.getUserStatus(message.getConversation().getTarget());
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if (userStatus == ProtoConstants.UserStatus.Forbidden) {
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return ErrorCode.ERROR_CODE_USER_FORBIDDEN;
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}
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}
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if (message.getConversation().getType() == ProtoConstants.ConversationType.ConversationType_Group ) {
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if(!m_messagesStore.getGroupMuteExceptionTypes().contains(message.getContent().getType())) {
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errorCode = m_messagesStore.canSendMessageInGroup(fromUser, message.getConversation().getTarget());
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if (errorCode != ErrorCode.ERROR_CODE_SUCCESS) {
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return errorCode;
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}
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}
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} else if (message.getConversation().getType() == ProtoConstants.ConversationType.ConversationType_ChatRoom) {
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if(!m_messagesStore.getGroupMuteExceptionTypes().contains(message.getContent().getType())) {
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if (!m_messagesStore.checkUserClientInChatroom(fromUser, clientID, message.getConversation().getTarget())) {
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return ErrorCode.ERROR_CODE_NOT_IN_CHATROOM;
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}
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}
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} else if (message.getConversation().getType() == ProtoConstants.ConversationType.ConversationType_Channel) {
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if(!m_messagesStore.getGroupMuteExceptionTypes().contains(message.getContent().getType())) {
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if (!m_messagesStore.canSendMessageInChannel(fromUser, message.getConversation().getTarget())) {
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return ErrorCode.ERROR_CODE_NOT_IN_CHANNEL;
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}
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}
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}
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}
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long timestamp = System.currentTimeMillis();
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final long messageId;
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try {
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messageId = MessageShardingUtil.generateId();
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} catch (Exception e) {
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e.printStackTrace();
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return ErrorCode.ERROR_CODE_SERVER_ERROR;
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}
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message = message.toBuilder().setFromUser(fromUser).setMessageId(messageId).setServerTimestamp(timestamp).build();
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OutputClient outputClient = null;
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if(m_messagesStore.isForwardMessageWithClientInfo() && requestSourceType == ProtoConstants.RequestSourceType.Request_From_User && !StringUtil.isNullOrEmpty(clientID)) {
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MemorySessionStore.Session session = m_sessionsStore.getSession(clientID);
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if(session != null && session.getUsername().equals(fromUser)) {
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outputClient = new OutputClient(session.getPlatform(), clientID);
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}
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}
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if (!StringUtil.isNullOrEmpty(mForwardUrl) && (mForwardMessageTypes.isEmpty() || mForwardMessageTypes.contains(message.getContent().getType())) && !(isAdmin && mNoForwardAdminMessage) && !mForwardExcludeMessageTypes.contains(message.getContent().getType())) {
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publisher.forwardMessage(message, mForwardUrl, outputClient);
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}
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if(!StringUtil.isNullOrEmpty(mMentionForwardUrl) && message.hasContent() && message.getContent().getMentionedType() != 0 && !(isAdmin && mNoForwardAdminMessage)) {
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publisher.forwardMessage(message, mMentionForwardUrl, outputClient);
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}
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if (!isAdmin) {
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if(StringUtil.isNullOrEmpty(mRemoteSensitiveServerUrl)) {
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Set<String> matched = m_messagesStore.handleSensitiveWord(message.getContent().getSearchableContent());
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if (matched != null && !matched.isEmpty()) {
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m_messagesStore.storeSensitiveMessage(message);
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if (!StringUtil.isNullOrEmpty(mSensitiveMessageForwardUrl)) {
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publisher.forwardMessage(message, mSensitiveMessageForwardUrl, outputClient);
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}
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if (mSensitiveType == 0) {
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errorCode = ErrorCode.ERROR_CODE_SENSITIVE_MATCHED;
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} else if (mSensitiveType == 1) {
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ignoreMsg = true;
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} else if (mSensitiveType == 2) {
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String text = message.getContent().getSearchableContent();
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for (String word : matched) {
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text = text.replace(word, "***");
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}
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message = message.toBuilder().setContent(message.getContent().toBuilder().setSearchableContent(text).build()).build();
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}
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}
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} else {
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if(mRemoteSensitiveMessageTypes.contains(message.getContent().getType())) {
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final WFCMessage.Message finalMsg = message;
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publisher.forwardMessageWithCallback(message, mRemoteSensitiveServerUrl, new HttpUtils.HttpCallback() {
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@Override
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public void onSuccess(String content) {
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if(StringUtil.isNullOrEmpty(content)) {
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saveAndPublish(fromUser, clientID, finalMsg, requestSourceType);
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} else {
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MessagePayload payload = GsonUtil.gson.fromJson(content, MessagePayload.class);
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if (payload != null && payload.getType() > 0) {
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WFCMessage.Message newMsg = finalMsg.toBuilder().setContent(payload.toProtoMessageContent()).build();
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saveAndPublish(fromUser, clientID, newMsg, requestSourceType);
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} else {
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LOG.error("Response content {} from censor is invalid payload, ignore response and send original message", content);
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saveAndPublish(fromUser, clientID, finalMsg, requestSourceType);
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}
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}
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if(mWaitRemoteSensitiveServerResponse) {
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ByteBuf ackPayload = Unpooled.buffer(21);
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ErrorCode errorCode = ERROR_CODE_SUCCESS;
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ackPayload.writeByte(errorCode.getCode());
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ackPayload.writeLong(messageId);
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ackPayload.writeLong(timestamp);
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callback.onIMHandled(ErrorCode.ERROR_CODE_SUCCESS, ackPayload);
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}
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}
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@Override
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public void onFailure(int statusCode, String errorMessage) {
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ByteBuf ackPayload = null;
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ErrorCode errorCode = ERROR_CODE_SUCCESS;
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if(statusCode == 403) {
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if(mWaitRemoteSensitiveServerResponse) {
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errorCode = ErrorCode.ERROR_CODE_SENSITIVE_MATCHED;
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ackPayload = Unpooled.buffer(1);
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ackPayload.writeByte(errorCode.getCode());
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}
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} else {
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LOG.warn("Failed to censor message with status {}, errorMessage {}. Send the original message", statusCode, errorMessage);
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saveAndPublish(fromUser, clientID, finalMsg, requestSourceType);
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if(mWaitRemoteSensitiveServerResponse) {
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errorCode = ERROR_CODE_SUCCESS;
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ackPayload = Unpooled.buffer(21);
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ackPayload.writeByte(errorCode.getCode());
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ackPayload.writeLong(messageId);
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ackPayload.writeLong(timestamp);
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}
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}
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if(mWaitRemoteSensitiveServerResponse) {
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callback.onIMHandled(errorCode, ackPayload);
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}
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}
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});
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if(mWaitRemoteSensitiveServerResponse) {
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ackPayload.clear();
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return ErrorCode.INVALID_ASYNC_HANDLING;
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} else {
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ackPayload = ackPayload.capacity(20);
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ackPayload.writeLong(messageId);
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ackPayload.writeLong(timestamp);
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return ErrorCode.ERROR_CODE_SUCCESS;
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}
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}
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}
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}
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if (errorCode == ErrorCode.ERROR_CODE_SUCCESS) {
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if(!ignoreMsg) {
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saveAndPublish(fromUser, clientID, message, requestSourceType);
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}
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ackPayload = ackPayload.capacity(20);
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ackPayload.writeLong(messageId);
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ackPayload.writeLong(timestamp);
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}
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} else {
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errorCode = ErrorCode.ERROR_CODE_INVALID_MESSAGE;
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}
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return errorCode;
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}
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}
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