forked from community/device-mgt-core
lasanthaDLPDS
5 years ago
parent
c859ff9611
commit
fefdb7aba3
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/*
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* Copyright (c) 2019, Entgra (Pvt) Ltd. (http://www.entgra.io) All Rights Reserved.
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*
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* Entgra (Pvt) Ltd. licenses this file to you under the Apache License,
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* Version 2.0 (the "License"); you may not use this file except
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* 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,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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package io.entgra.ui.request.interceptor;
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import com.google.gson.JsonElement;
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import com.google.gson.JsonObject;
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import com.google.gson.JsonParser;
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import com.google.gson.JsonSyntaxException;
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import io.entgra.ui.request.interceptor.beans.AuthData;
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import io.entgra.ui.request.interceptor.util.HandlerConstants;
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import io.entgra.ui.request.interceptor.util.HandlerUtil;
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import org.apache.commons.lang.StringUtils;
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import org.apache.commons.logging.Log;
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import org.apache.commons.logging.LogFactory;
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import org.apache.http.HttpHeaders;
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import org.apache.http.HttpStatus;
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import org.apache.http.client.methods.HttpPost;
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import org.apache.http.entity.ContentType;
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import org.apache.http.entity.StringEntity;
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import org.wso2.carbon.device.application.mgt.common.ProxyResponse;
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import javax.servlet.annotation.MultipartConfig;
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import javax.servlet.annotation.WebServlet;
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import javax.servlet.http.HttpServlet;
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import javax.servlet.http.HttpServletRequest;
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import javax.servlet.http.HttpServletResponse;
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import javax.servlet.http.HttpSession;
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import java.io.IOException;
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@MultipartConfig @WebServlet("/user") public class UserHandler extends HttpServlet {
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private static final Log log = LogFactory.getLog(UserHandler.class);
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private static final long serialVersionUID = 9050048549140517002L;
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@Override protected void doPost(HttpServletRequest req, HttpServletResponse resp) {
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try {
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String platform = req.getParameter(HandlerConstants.PLATFORM);
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String serverUrl =
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req.getScheme() + HandlerConstants.SCHEME_SEPARATOR + req.getServerName() + HandlerConstants.COLON
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+ System.getProperty("iot.gateway.https.port");
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if (StringUtils.isBlank(platform)) {
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ProxyResponse proxyResponse = new ProxyResponse();
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proxyResponse.setCode(HttpStatus.SC_BAD_REQUEST);
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HandlerUtil.handleError(req, resp, serverUrl, platform, proxyResponse);
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return;
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}
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HttpSession httpSession = req.getSession(false);
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if (httpSession == null) {
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ProxyResponse proxyResponse = new ProxyResponse();
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proxyResponse.setCode(HttpStatus.SC_UNAUTHORIZED);
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HandlerUtil.handleError(req, resp, serverUrl, platform, proxyResponse);
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return;
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}
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AuthData authData = (AuthData) httpSession.getAttribute(HandlerConstants.SESSION_AUTH_DATA_KEY);
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String accessToken = authData.getAccessToken();
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HttpPost tokenEndpoint = new HttpPost(serverUrl + HandlerConstants.INTROSPECT_ENDPOINT);
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tokenEndpoint.setHeader(HttpHeaders.CONTENT_TYPE, ContentType.APPLICATION_FORM_URLENCODED.toString());
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StringEntity tokenEPPayload = new StringEntity("token=" + accessToken,
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ContentType.APPLICATION_FORM_URLENCODED);
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tokenEndpoint.setEntity(tokenEPPayload);
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ProxyResponse tokenStatus = HandlerUtil.execute(tokenEndpoint);
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if (tokenStatus.getExecutorResponse().contains(HandlerConstants.EXECUTOR_EXCEPTION_PREFIX)) {
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log.error("Error occurred while invoking the API to get token status.");
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HandlerUtil.handleError(req, resp, serverUrl, platform, tokenStatus);
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return;
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}
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String tokenData = tokenStatus.getData();
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if (tokenData == null) {
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log.error("Invalid token data is received.");
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HandlerUtil.handleError(req, resp, serverUrl, platform, tokenStatus);
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return;
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}
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JsonParser jsonParser = new JsonParser();
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JsonElement jTokenResult = jsonParser.parse(tokenData);
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if (jTokenResult.isJsonObject()) {
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JsonObject jTokenResultAsJsonObject = jTokenResult.getAsJsonObject();
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if (!jTokenResultAsJsonObject.get("active").getAsBoolean()) {
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ProxyResponse proxyResponse = new ProxyResponse();
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proxyResponse.setCode(HttpStatus.SC_UNAUTHORIZED);
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HandlerUtil.handleError(req, resp, serverUrl, platform, proxyResponse);
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return;
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}
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ProxyResponse proxyResponse = new ProxyResponse();
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proxyResponse.setCode(HttpStatus.SC_OK);
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proxyResponse.setData(jTokenResultAsJsonObject.get("username").getAsString());
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HandlerUtil.handleSuccess(req, resp, serverUrl, platform, proxyResponse);
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}
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} catch (IOException e) {
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log.error("Error occurred while sending the response into the socket. ", e);
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} catch (JsonSyntaxException e) {
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log.error("Error occurred while parsing the response. ", e);
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}
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}
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}
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