116 lines
4.4 KiB
Java
Executable File
116 lines
4.4 KiB
Java
Executable File
/**
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* Copyright 2018-2028 WindChat Group
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.windchat.im.connector.handler;
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import java.util.Base64;
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import org.apache.commons.lang3.StringUtils;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import com.windchat.common.command.Command;
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import com.windchat.common.command.CommandResponse;
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import com.windchat.common.constant.CharsetCoding;
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import com.windchat.common.constant.CommandConst;
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import com.windchat.common.crypto.AESCrypto;
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import com.akaxin.proto.core.CoreProto;
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import com.akaxin.proto.core.PluginProto;
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import com.windchat.im.business.service.HttpRequestService;
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import com.windchat.im.connector.constant.AkxProject;
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import com.windchat.im.connector.constant.HttpConst;
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import com.windchat.im.connector.constant.PluginConst;
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import io.netty.buffer.Unpooled;
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import io.netty.channel.ChannelHandlerContext;
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import io.netty.handler.codec.http.DefaultFullHttpResponse;
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import io.netty.handler.codec.http.FullHttpResponse;
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import io.netty.handler.codec.http.HttpHeaderNames;
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import io.netty.handler.codec.http.HttpHeaderValues;
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import io.netty.handler.codec.http.HttpResponseStatus;
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import io.netty.handler.codec.http.HttpVersion;
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/**
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* 使用TCP处理API请求,TCP代处理HTTP请求
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*
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* @author Sam
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* @since 2017.10.19
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*
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* @param <Command>
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*/
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public class HttpRequestHandler extends AbstractCommonHandler<Command, CommandResponse> {
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private static final Logger logger = LoggerFactory.getLogger(HttpRequestHandler.class);
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@Override
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public CommandResponse handle(Command command) {
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try {
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ChannelHandlerContext context = command.getChannelContext();
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if (context == null) {
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logger.error("{} client={} http request error context={}", AkxProject.PLN, command.getClientIp(),
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context);
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return null;
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}
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CommandResponse comamndResponse = new HttpRequestService().process(command);
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comamndResponse.setVersion(CommandConst.PROTOCOL_VERSION);
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comamndResponse.setAction(CommandConst.ACTION_RES);
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String authKey = command.getField(PluginConst.PLUGIN_AUTH_KEY, String.class);
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fullHttpResponse(context, comamndResponse, authKey);
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return comamndResponse;
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} catch (Exception e) {
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logger.error("api request error.", e);
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}
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return null;
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}
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/**
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* response包含： <br>
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* 1.状态行 ，Http-Version Status-Code Reason-Phrase CLRLF<br>
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* 2.消息报头 <br>
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* 3.响应正文
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*/
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private void fullHttpResponse(ChannelHandlerContext context, CommandResponse commandResponse, String authKey) {
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FullHttpResponse response = null;
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try {
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PluginProto.ProxyPluginPackage.Builder packBuilder = PluginProto.ProxyPluginPackage.newBuilder();
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CoreProto.ErrorInfo errInfo = CoreProto.ErrorInfo.newBuilder().setCode(commandResponse.getErrCode())
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.setInfo(commandResponse.getErrInfo()).build();
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packBuilder.setErrorInfo(errInfo);
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if (commandResponse.getParams() != null) {
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String dataStr = Base64.getEncoder().encodeToString(commandResponse.getParams());
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packBuilder.setData(dataStr);
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}
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byte[] httpResBytes = packBuilder.build().toByteArray();
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if (StringUtils.isNotEmpty(authKey)) {
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// authKey存在，则加密，不存在则使用原文
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byte[] tsk = authKey.getBytes(CharsetCoding.ISO_8859_1);
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byte[] decContent = AESCrypto.encrypt(tsk, httpResBytes);
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httpResBytes = decContent;
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}
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response = new DefaultFullHttpResponse(HttpVersion.HTTP_1_1, HttpResponseStatus.OK,
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Unpooled.wrappedBuffer(httpResBytes));
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} catch (Exception e) {
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response = new DefaultFullHttpResponse(HttpVersion.HTTP_1_1, HttpResponseStatus.NO_CONTENT);
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logger.error("full http response error.", e);
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}
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response.headers().set(HttpHeaderNames.CONTENT_TYPE, HttpConst.HTTP_H_CONTENT_TYPE);
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response.headers().set(HttpHeaderNames.CONTENT_LENGTH, response.content().readableBytes());
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response.headers().set(HttpHeaderNames.CONNECTION, HttpHeaderValues.KEEP_ALIVE);
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context.writeAndFlush(response);
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}
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}
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