tcdlpds@gmail.com
4 years ago
parent
3d38bd5570
commit
e0eb4316f4
@ -0,0 +1,139 @@
|
||||
/* Copyright (c) 2020, Entgra (Pvt) Ltd. (http://www.entgra.io) All Rights Reserved.
|
||||
*
|
||||
* Entgra (Pvt) Ltd. 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 io.entgra.ui.request.interceptor;
|
||||
|
||||
import com.google.gson.JsonElement;
|
||||
import com.google.gson.JsonObject;
|
||||
import com.google.gson.JsonParser;
|
||||
import io.entgra.ui.request.interceptor.beans.AuthData;
|
||||
import io.entgra.ui.request.interceptor.util.HandlerConstants;
|
||||
import io.entgra.ui.request.interceptor.util.HandlerUtil;
|
||||
import org.apache.commons.logging.Log;
|
||||
import org.apache.commons.logging.LogFactory;
|
||||
import org.apache.http.HttpHeaders;
|
||||
import org.apache.http.HttpStatus;
|
||||
import org.apache.http.client.methods.HttpGet;
|
||||
import org.apache.http.entity.ContentType;
|
||||
import org.wso2.carbon.device.application.mgt.common.ProxyResponse;
|
||||
|
||||
import javax.servlet.annotation.MultipartConfig;
|
||||
import javax.servlet.annotation.WebServlet;
|
||||
import javax.servlet.http.HttpServlet;
|
||||
import javax.servlet.http.HttpServletRequest;
|
||||
import javax.servlet.http.HttpServletResponse;
|
||||
import javax.servlet.http.HttpSession;
|
||||
import java.io.IOException;
|
||||
|
||||
@MultipartConfig
|
||||
@WebServlet(
|
||||
name = "DefaultTokenHandlerServlet",
|
||||
description = "This servlet intercepts the api requests initiated from the user interface to get the default "
|
||||
+ "token",
|
||||
urlPatterns = { "/default-credentials/*" }
|
||||
)
|
||||
public class DefaultTokenHandler extends HttpServlet {
|
||||
private static final Log log = LogFactory.getLog(DefaultTokenHandler.class);
|
||||
|
||||
|
||||
@Override
|
||||
protected void doGet(HttpServletRequest req, HttpServletResponse resp) {
|
||||
try {
|
||||
HttpSession httpSession = req.getSession(false);
|
||||
|
||||
if (httpSession != null) {
|
||||
AuthData authData = (AuthData) httpSession.getAttribute(HandlerConstants.SESSION_AUTH_DATA_KEY);
|
||||
if (authData == null) {
|
||||
HandlerUtil.sendUnAuthorizeResponse(resp);
|
||||
return;
|
||||
}
|
||||
|
||||
AuthData defaultAuthData = (AuthData) httpSession
|
||||
.getAttribute(HandlerConstants.SESSION_DEFAULT_AUTH_DATA_KEY);
|
||||
if (defaultAuthData != null) {
|
||||
HandlerUtil.handleSuccess(resp, constructSuccessProxyResponse(defaultAuthData.getAccessToken()));
|
||||
return;
|
||||
}
|
||||
|
||||
String clientId = authData.getClientId();
|
||||
String clientSecret = authData.getClientSecret();
|
||||
|
||||
String iotsCorePort = System.getProperty("iot.core.https.port");
|
||||
if (HandlerConstants.HTTP_PROTOCOL.equals(req.getScheme())) {
|
||||
iotsCorePort = System.getProperty("iot.core.http.port");
|
||||
}
|
||||
String tokenUrl =
|
||||
req.getScheme() + HandlerConstants.SCHEME_SEPARATOR + System.getProperty("iot.core.host")
|
||||
+ HandlerConstants.COLON + iotsCorePort + "/api/device-mgt/v1.0/devices" + clientId
|
||||
+ HandlerConstants.SCHEME_SEPARATOR + clientSecret + HandlerConstants.SCHEME_SEPARATOR
|
||||
+ "default-token";
|
||||
|
||||
HttpGet defaultTokenRequest = new HttpGet(tokenUrl);
|
||||
defaultTokenRequest
|
||||
.setHeader(HttpHeaders.AUTHORIZATION, HandlerConstants.BEARER + authData.getAccessToken());
|
||||
defaultTokenRequest
|
||||
.setHeader(HttpHeaders.CONTENT_TYPE, ContentType.APPLICATION_FORM_URLENCODED.toString());
|
||||
ProxyResponse tokenResultResponse = HandlerUtil.execute(defaultTokenRequest);
|
||||
|
||||
if (tokenResultResponse.getExecutorResponse().contains(HandlerConstants.EXECUTOR_EXCEPTION_PREFIX)) {
|
||||
log.error("Error occurred while invoking the API to get default token data.");
|
||||
HandlerUtil.handleError(resp, tokenResultResponse);
|
||||
return;
|
||||
}
|
||||
String tokenResult = tokenResultResponse.getData();
|
||||
if (tokenResult == null) {
|
||||
log.error("Invalid default token response is received.");
|
||||
HandlerUtil.handleError(resp, tokenResultResponse);
|
||||
return;
|
||||
}
|
||||
|
||||
JsonParser jsonParser = new JsonParser();
|
||||
JsonElement jTokenResult = jsonParser.parse(tokenResult);
|
||||
if (jTokenResult.isJsonObject()) {
|
||||
JsonObject jTokenResultAsJsonObject = jTokenResult.getAsJsonObject();
|
||||
AuthData newDefaultAuthData = new AuthData();
|
||||
newDefaultAuthData.setClientId(clientId);
|
||||
newDefaultAuthData.setClientSecret(clientSecret);
|
||||
|
||||
String defaultToken = jTokenResultAsJsonObject.get("access_token").getAsString();
|
||||
newDefaultAuthData.setAccessToken(defaultToken);
|
||||
newDefaultAuthData.setRefreshToken(jTokenResultAsJsonObject.get("refresh_token").getAsString());
|
||||
newDefaultAuthData.setScope(jTokenResultAsJsonObject.get("scope").getAsString());
|
||||
httpSession.setAttribute(HandlerConstants.SESSION_DEFAULT_AUTH_DATA_KEY, newDefaultAuthData);
|
||||
|
||||
HandlerUtil.handleSuccess(resp, constructSuccessProxyResponse(defaultToken));
|
||||
}
|
||||
} else {
|
||||
HandlerUtil.sendUnAuthorizeResponse(resp);
|
||||
}
|
||||
} catch (IOException e) {
|
||||
log.error("Error occurred when processing GET request to get default token.", e);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Get Success Proxy Response
|
||||
* @param responseString Response String
|
||||
* @return {@link ProxyResponse}
|
||||
*/
|
||||
private ProxyResponse constructSuccessProxyResponse (String responseString) {
|
||||
ProxyResponse proxyResponse = new ProxyResponse();
|
||||
proxyResponse.setCode(HttpStatus.SC_OK);
|
||||
proxyResponse.setData(responseString);
|
||||
return proxyResponse;
|
||||
}
|
||||
}
|
||||
Loading…
Reference in new issue