1 /*******************************************************************************
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2 * ============LICENSE_START==================================================
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4 * * ===========================================================================
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5 * * Copyright © 2017 AT&T Intellectual Property. All rights reserved.
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6 * * ===========================================================================
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7 * * Licensed under the Apache License, Version 2.0 (the "License");
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8 * * you may not use this file except in compliance with the License.
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9 * * You may obtain a copy of the License at
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11 * * http://www.apache.org/licenses/LICENSE-2.0
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13 * * Unless required by applicable law or agreed to in writing, software
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14 * * distributed under the License is distributed on an "AS IS" BASIS,
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15 * * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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16 * * See the License for the specific language governing permissions and
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17 * * limitations under the License.
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18 * * ============LICENSE_END====================================================
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20 * * ECOMP is a trademark and service mark of AT&T Intellectual Property.
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22 ******************************************************************************/
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25 package org.onap.dmaap.datarouter.provisioning;
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27 import static org.onap.dmaap.datarouter.provisioning.utils.HttpServletUtils.sendResponseError;
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29 import com.att.eelf.configuration.EELFLogger;
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30 import com.att.eelf.configuration.EELFManager;
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31 import java.io.IOException;
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32 import java.io.InvalidObjectException;
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33 import java.net.HttpURLConnection;
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34 import java.net.URL;
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35 import java.util.ArrayList;
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36 import java.util.List;
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37 import javax.servlet.http.HttpServletRequest;
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38 import javax.servlet.http.HttpServletResponse;
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39 import org.json.JSONException;
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40 import org.json.JSONObject;
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41 import org.onap.dmaap.datarouter.authz.AuthorizationResponse;
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42 import org.onap.dmaap.datarouter.provisioning.beans.EventLogRecord;
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43 import org.onap.dmaap.datarouter.provisioning.beans.Subscription;
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44 import org.onap.dmaap.datarouter.provisioning.eelf.EelfMsgs;
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45 import org.onap.dmaap.datarouter.provisioning.utils.SynchronizerTask;
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48 * This servlet handles provisioning for the <subscriptionURL> which is generated by the provisioning server to
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49 * handle the inspection, modification, and deletion of a particular subscription to a feed. It supports DELETE to
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50 * delete a subscription, GET to retrieve information about the subscription, and PUT to modify the subscription. In DR
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51 * 3.0, POST is also supported in order to reset the subscription timers for individual subscriptions.
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53 * @author Robert Eby
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56 @SuppressWarnings("serial")
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57 public class SubscriptionServlet extends ProxyServlet {
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59 private static final String SUBCNTRL_CONTENT_TYPE = "application/vnd.dmaap-dr.subscription-control";
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60 //Adding EELF Logger Rally:US664892
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61 private static EELFLogger eelfLogger = EELFManager.getInstance()
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62 .getLogger(SubscriptionServlet.class);
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69 * DELETE on the <subscriptionUrl> -- delete a subscription. See the <i>Deleting a Subscription</i> section in
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70 * the <b>Provisioning API</b> document for details on how this method should be invoked.
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73 public void doDelete(HttpServletRequest req, HttpServletResponse resp) {
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74 setIpFqdnRequestIDandInvocationIDForEelf("doDelete", req);
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75 eelfLogger.info(EelfMsgs.ENTRY);
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77 eelfLogger.info(EelfMsgs.MESSAGE_WITH_BEHALF_AND_SUBID,
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78 req.getHeader(BEHALF_HEADER), getIdFromPath(req) + "");
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79 EventLogRecord elr = new EventLogRecord(req);
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80 String message = isAuthorizedForProvisioning(req);
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81 if (message != null) {
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82 elr.setMessage(message);
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83 elr.setResult(HttpServletResponse.SC_FORBIDDEN);
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84 eventlogger.error(elr.toString());
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85 sendResponseError(resp, HttpServletResponse.SC_FORBIDDEN, message, eventlogger);
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88 if (isProxyServer()) {
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89 super.doDelete(req, resp);
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92 String bhdr = req.getHeader(BEHALF_HEADER);
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94 message = MISSING_ON_BEHALF;
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95 elr.setMessage(message);
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96 elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
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97 eventlogger.error(elr.toString());
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98 sendResponseError(resp, HttpServletResponse.SC_BAD_REQUEST, message, eventlogger);
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101 int subid = getIdFromPath(req);
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104 elr.setMessage(message);
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105 elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
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106 eventlogger.error(elr.toString());
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107 sendResponseError(resp, HttpServletResponse.SC_BAD_REQUEST, message, eventlogger);
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110 Subscription sub = Subscription.getSubscriptionById(subid);
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113 elr.setMessage(message);
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114 elr.setResult(HttpServletResponse.SC_NOT_FOUND);
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115 eventlogger.error(elr.toString());
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116 sendResponseError(resp, HttpServletResponse.SC_NOT_FOUND, message, eventlogger);
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120 * START - AAF changes
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121 * TDP EPIC US# 307413
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122 * CADI code - check on permissions based on Legacy/AAF users to allow to delete/remove subscription
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124 String aafInstance = sub.getAafInstance();
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125 if (aafInstance == null || "".equals(aafInstance) || "legacy".equalsIgnoreCase(aafInstance)) {
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126 AuthorizationResponse aresp = authz.decide(req);
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127 if (!aresp.isAuthorized()) {
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128 message = POLICY_ENGINE;
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129 elr.setMessage(message);
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130 elr.setResult(HttpServletResponse.SC_FORBIDDEN);
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131 eventlogger.error(elr.toString());
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132 sendResponseError(resp, HttpServletResponse.SC_FORBIDDEN, message, eventlogger);
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136 String permission = getSubscriberPermission(aafInstance, BaseServlet.DELETE_PERMISSION);
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137 eventlogger.info("SubscriptionServlet.doDelete().. Permission String - " + permission);
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138 if (!req.isUserInRole(permission)) {
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139 message = "AAF disallows access to permission - " + permission;
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140 elr.setMessage(message);
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141 elr.setResult(HttpServletResponse.SC_FORBIDDEN);
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142 eventlogger.error(elr.toString());
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143 sendResponseError(resp, HttpServletResponse.SC_FORBIDDEN, message, eventlogger);
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148 * END - AAF changes
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150 // Delete Subscription
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151 if (doDelete(sub)) {
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154 elr.setResult(HttpServletResponse.SC_NO_CONTENT);
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155 eventlogger.info(elr.toString());
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156 resp.setStatus(HttpServletResponse.SC_NO_CONTENT);
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157 provisioningDataChanged();
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159 // Something went wrong with the DELETE
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160 elr.setResult(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
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161 eventlogger.error(elr.toString());
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162 sendResponseError(resp, HttpServletResponse.SC_INTERNAL_SERVER_ERROR, DB_PROBLEM_MSG, intlogger);
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165 eelfLogger.info(EelfMsgs.EXIT);
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170 * GET on the <subscriptionUrl> -- get information about a subscription. See the <i>Retreiving Information
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171 * about a Subscription</i> section in the <b>Provisioning API</b> document for details on how this method should be
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175 public void doGet(HttpServletRequest req, HttpServletResponse resp) {
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176 setIpFqdnRequestIDandInvocationIDForEelf("doGet", req);
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177 eelfLogger.info(EelfMsgs.ENTRY);
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179 eelfLogger.info(EelfMsgs.MESSAGE_WITH_BEHALF_AND_SUBID,
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180 req.getHeader(BEHALF_HEADER), getIdFromPath(req) + "");
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181 EventLogRecord elr = new EventLogRecord(req);
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182 String message = isAuthorizedForProvisioning(req);
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183 if (message != null) {
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184 elr.setMessage(message);
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185 elr.setResult(HttpServletResponse.SC_FORBIDDEN);
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186 eventlogger.error(elr.toString());
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187 sendResponseError(resp, HttpServletResponse.SC_FORBIDDEN, message, eventlogger);
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190 if (isProxyServer()) {
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191 super.doGet(req, resp);
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194 String bhdr = req.getHeader(BEHALF_HEADER);
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195 if (bhdr == null) {
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196 message = MISSING_ON_BEHALF;
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197 elr.setMessage(message);
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198 elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
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199 eventlogger.error(elr.toString());
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200 sendResponseError(resp, HttpServletResponse.SC_BAD_REQUEST, message, eventlogger);
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203 int subid = getIdFromPath(req);
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206 elr.setMessage(message);
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207 elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
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208 eventlogger.error(elr.toString());
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209 sendResponseError(resp, HttpServletResponse.SC_BAD_REQUEST, message, eventlogger);
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212 Subscription sub = Subscription.getSubscriptionById(subid);
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215 elr.setMessage(message);
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216 elr.setResult(HttpServletResponse.SC_NOT_FOUND);
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217 eventlogger.error(elr.toString());
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218 sendResponseError(resp, HttpServletResponse.SC_NOT_FOUND, message, eventlogger);
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221 // Check with the Authorizer
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222 AuthorizationResponse aresp = authz.decide(req);
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223 if (!aresp.isAuthorized()) {
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224 message = POLICY_ENGINE;
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225 elr.setMessage(message);
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226 elr.setResult(HttpServletResponse.SC_FORBIDDEN);
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227 eventlogger.error(elr.toString());
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228 sendResponseError(resp, HttpServletResponse.SC_FORBIDDEN, message, eventlogger);
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233 elr.setResult(HttpServletResponse.SC_OK);
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234 eventlogger.info(elr.toString());
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235 resp.setStatus(HttpServletResponse.SC_OK);
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236 resp.setContentType(SUBFULL_CONTENT_TYPE);
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238 resp.getOutputStream().print(sub.asJSONObject(true).toString());
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239 } catch (IOException ioe) {
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240 eventlogger.error("PROV0191 SubscriptionServlet.doGet: " + ioe.getMessage(), ioe);
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243 eelfLogger.info(EelfMsgs.EXIT);
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248 * PUT on the <subscriptionUrl> -- modify a subscription. See the <i>Modifying a Subscription</i> section in
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249 * the <b>Provisioning API</b> document for details on how this method should be invoked.
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252 public void doPut(HttpServletRequest req, HttpServletResponse resp) {
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253 setIpFqdnRequestIDandInvocationIDForEelf("doPut", req);
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254 eelfLogger.info(EelfMsgs.ENTRY);
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256 eelfLogger.info(EelfMsgs.MESSAGE_WITH_BEHALF_AND_SUBID,
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257 req.getHeader(BEHALF_HEADER), getIdFromPath(req) + "");
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258 EventLogRecord elr = new EventLogRecord(req);
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259 String message = isAuthorizedForProvisioning(req);
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260 if (message != null) {
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261 elr.setMessage(message);
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262 elr.setResult(HttpServletResponse.SC_FORBIDDEN);
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263 eventlogger.error(elr.toString());
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264 sendResponseError(resp, HttpServletResponse.SC_FORBIDDEN, message, eventlogger);
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267 if (isProxyServer()) {
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268 super.doPut(req, resp);
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271 String bhdr = req.getHeader(BEHALF_HEADER);
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272 if (bhdr == null) {
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273 message = MISSING_ON_BEHALF;
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274 elr.setMessage(message);
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275 elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
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276 eventlogger.error(elr.toString());
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277 sendResponseError(resp, HttpServletResponse.SC_BAD_REQUEST, message, eventlogger);
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280 int subid = getIdFromPath(req);
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283 elr.setMessage(message);
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284 elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
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285 eventlogger.error(elr.toString());
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286 sendResponseError(resp, HttpServletResponse.SC_BAD_REQUEST, message, eventlogger);
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289 Subscription oldsub = Subscription.getSubscriptionById(subid);
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290 if (oldsub == null) {
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292 elr.setMessage(message);
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293 elr.setResult(HttpServletResponse.SC_NOT_FOUND);
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294 eventlogger.error(elr.toString());
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295 sendResponseError(resp, HttpServletResponse.SC_NOT_FOUND, message, eventlogger);
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298 // check content type is SUB_CONTENT_TYPE, version 1.0
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299 ContentHeader ch = getContentHeader(req);
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300 String ver = ch.getAttribute("version");
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301 if (!ch.getType().equals(SUB_BASECONTENT_TYPE) || !("1.0".equals(ver) || "2.0".equals(ver))) {
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302 message = "Incorrect content-type";
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303 elr.setMessage(message);
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304 elr.setResult(HttpServletResponse.SC_UNSUPPORTED_MEDIA_TYPE);
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305 eventlogger.error(elr.toString());
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306 sendResponseError(resp, HttpServletResponse.SC_UNSUPPORTED_MEDIA_TYPE, message, eventlogger);
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309 JSONObject jo = getJSONfromInput(req);
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311 message = BAD_JSON;
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312 elr.setMessage(message);
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313 elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
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314 eventlogger.error(elr.toString());
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315 sendResponseError(resp, HttpServletResponse.SC_BAD_REQUEST, message, eventlogger);
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320 sub = new Subscription(jo);
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321 } catch (InvalidObjectException e) {
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322 message = e.getMessage();
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323 elr.setMessage(message);
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324 elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
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325 eventlogger.error(elr.toString(), e);
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326 sendResponseError(resp, HttpServletResponse.SC_BAD_REQUEST, message, eventlogger);
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331 * START - AAF changes
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332 * TDP EPIC US# 307413
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333 * CADI code - check on permissions based on Legacy/AAF users to allow to delete/remove subscription
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335 String aafInstance = sub.getAafInstance();
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336 if (aafInstance == null || "".equals(aafInstance) || "legacy".equalsIgnoreCase(aafInstance)) {
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337 AuthorizationResponse aresp = authz.decide(req);
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338 if (!aresp.isAuthorized()) {
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339 message = POLICY_ENGINE;
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340 elr.setMessage(message);
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341 elr.setResult(HttpServletResponse.SC_FORBIDDEN);
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342 eventlogger.error(elr.toString());
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343 sendResponseError(resp, HttpServletResponse.SC_FORBIDDEN, message, eventlogger);
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347 String permission = getSubscriberPermission(aafInstance, BaseServlet.EDIT_PERMISSION);
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348 eventlogger.info("SubscriptionServlet.doDelete().. Permission String - " + permission);
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349 if (!req.isUserInRole(permission)) {
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350 message = "AAF disallows access to permission - " + permission;
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351 elr.setMessage(message);
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352 elr.setResult(HttpServletResponse.SC_FORBIDDEN);
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353 eventlogger.error(elr.toString());
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354 sendResponseError(resp, HttpServletResponse.SC_FORBIDDEN, message, eventlogger);
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359 * END - AAF changes
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361 sub.setSubid(oldsub.getSubid());
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362 sub.setFeedid(oldsub.getFeedid());
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363 sub.setSubscriber(bhdr); // set from X-DMAAP-DR-ON-BEHALF-OF header
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364 //Adding for group feature:Rally US708115
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365 String subjectgroup = (req.getHeader("X-DMAAP-DR-ON-BEHALF-OF-GROUP"));
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366 if (!oldsub.getSubscriber().equals(sub.getSubscriber()) && subjectgroup == null) {
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367 message = "This subscriber must be modified by the same subscriber that created it.";
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368 elr.setMessage(message);
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369 elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
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370 eventlogger.error(elr.toString());
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371 sendResponseError(resp, HttpServletResponse.SC_BAD_REQUEST, message, eventlogger);
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375 // Update SUBSCRIPTIONS table entries
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376 if (doUpdate(sub)) {
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378 elr.setResult(HttpServletResponse.SC_OK);
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379 eventlogger.info(elr.toString());
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380 resp.setStatus(HttpServletResponse.SC_OK);
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381 resp.setContentType(SUBFULL_CONTENT_TYPE);
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383 resp.getOutputStream().print(sub.asLimitedJSONObject().toString());
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384 } catch (IOException ioe) {
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385 eventlogger.error("PROV0192 SubscriptionServlet.doPut: " + ioe.getMessage(), ioe);
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388 /**Change Owner ship of Subscriber. Adding for group feature:Rally US708115*/
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389 if (jo.has("changeowner") && subjectgroup != null) {
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391 Boolean changeowner = (Boolean) jo.get("changeowner");
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392 if (changeowner != null && changeowner.equals(true)) {
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393 sub.setSubscriber(req.getHeader(BEHALF_HEADER));
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394 sub.changeOwnerShip();
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396 } catch (JSONException je) {
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397 eventlogger.error("PROV0193 SubscriptionServlet.doPut: " + je.getMessage(), je);
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400 /***End of change ownership.*/
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402 provisioningDataChanged();
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404 // Something went wrong with the UPDATE
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405 elr.setResult(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
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406 eventlogger.error(elr.toString());
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407 sendResponseError(resp, HttpServletResponse.SC_INTERNAL_SERVER_ERROR, DB_PROBLEM_MSG, intlogger);
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410 eelfLogger.info(EelfMsgs.EXIT);
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415 * POST on the <subscriptionUrl> -- control a subscription. See the <i>Resetting a Subscription's Retry
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416 * Schedule</i> section in the <b>Provisioning API</b> document for details on how this method should be invoked.
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419 public void doPost(HttpServletRequest req, HttpServletResponse resp) {
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421 setIpFqdnRequestIDandInvocationIDForEelf("doPost", req);
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422 eelfLogger.info(EelfMsgs.ENTRY);
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424 eelfLogger.info(EelfMsgs.MESSAGE_WITH_BEHALF, req.getHeader(BEHALF_HEADER));
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425 EventLogRecord elr = new EventLogRecord(req);
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426 String message = isAuthorizedForProvisioning(req);
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427 if (message != null) {
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428 elr.setMessage(message);
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429 elr.setResult(HttpServletResponse.SC_FORBIDDEN);
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430 eventlogger.error(elr.toString());
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431 sendResponseError(resp, HttpServletResponse.SC_FORBIDDEN, message, eventlogger);
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434 if (isProxyServer()) {
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435 super.doPost(req, resp);
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438 String bhdr = req.getHeader(BEHALF_HEADER);
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439 if (bhdr == null) {
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440 message = MISSING_ON_BEHALF;
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441 elr.setMessage(message);
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442 elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
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443 eventlogger.error(elr.toString());
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444 sendResponseError(resp, HttpServletResponse.SC_BAD_REQUEST, message, eventlogger);
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447 final int subid = getIdFromPath(req);
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448 if (subid < 0 || Subscription.getSubscriptionById(subid) == null) {
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450 elr.setMessage(message);
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451 elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
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452 eventlogger.error(elr.toString());
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453 sendResponseError(resp, HttpServletResponse.SC_BAD_REQUEST, message, eventlogger);
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456 // check content type is SUBCNTRL_CONTENT_TYPE, version 1.0
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457 ContentHeader ch = getContentHeader(req);
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458 String ver = ch.getAttribute("version");
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459 if (!ch.getType().equals(SUBCNTRL_CONTENT_TYPE) || !"1.0".equals(ver)) {
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460 message = "Incorrect content-type";
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461 elr.setMessage(message);
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462 elr.setResult(HttpServletResponse.SC_UNSUPPORTED_MEDIA_TYPE);
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463 eventlogger.error(elr.toString());
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464 sendResponseError(resp, HttpServletResponse.SC_UNSUPPORTED_MEDIA_TYPE, message, eventlogger);
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467 // Check with the Authorizer
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468 AuthorizationResponse aresp = authz.decide(req);
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469 if (!aresp.isAuthorized()) {
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470 message = POLICY_ENGINE;
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471 elr.setMessage(message);
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472 elr.setResult(HttpServletResponse.SC_FORBIDDEN);
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473 eventlogger.error(elr.toString());
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474 sendResponseError(resp, HttpServletResponse.SC_FORBIDDEN, message, eventlogger);
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477 JSONObject jo = getJSONfromInput(req);
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479 message = BAD_JSON;
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480 elr.setMessage(message);
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481 elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
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482 eventlogger.error(elr.toString());
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483 sendResponseError(resp, HttpServletResponse.SC_BAD_REQUEST, message, eventlogger);
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487 // Only the active POD sends notifications
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488 boolean active = SynchronizerTask.getSynchronizer().isActive();
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489 boolean bool = jo.getBoolean("failed");
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490 if (active && !bool) {
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491 // Notify all nodes to reset the subscription
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492 SubscriberNotifyThread thread = new SubscriberNotifyThread();
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493 thread.resetSubscription(subid);
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497 elr.setResult(HttpServletResponse.SC_ACCEPTED);
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498 eventlogger.info(elr.toString());
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499 resp.setStatus(HttpServletResponse.SC_ACCEPTED);
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500 } catch (JSONException e) {
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501 message = BAD_JSON;
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502 elr.setMessage(message);
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503 elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
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504 eventlogger.error(elr.toString(), e);
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505 sendResponseError(resp, HttpServletResponse.SC_BAD_REQUEST, message, eventlogger);
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508 eelfLogger.info(EelfMsgs.EXIT);
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513 * A Thread class used to serially send reset notifications to all nodes in the DR network, when a POST is received
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514 * for a subscription.
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516 public static class SubscriberNotifyThread extends Thread {
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518 static final String URL_TEMPLATE = "http://%s/internal/resetSubscription/%d";
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519 private List<String> urls = new ArrayList<>();
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521 SubscriberNotifyThread() {
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522 setName("SubscriberNotifyThread");
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525 void resetSubscription(int subid) {
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526 for (String nodename : BaseServlet.getNodes()) {
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527 String url = String.format(URL_TEMPLATE, nodename, subid);
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533 public void run() {
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535 while (!urls.isEmpty()) {
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536 String url = urls.remove(0);
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537 forceGetThrough(url);
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539 } catch (Exception e) {
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540 intlogger.warn("PROV0195 Caught exception in SubscriberNotifyThread: " + e.getMessage(), e);
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544 private void forceGetThrough(String url) {
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546 URL urlObj = new URL(url);
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547 HttpURLConnection conn = (HttpURLConnection) urlObj.openConnection();
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549 conn.getContentLength(); // Force the GET through
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551 } catch (IOException e) {
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552 intlogger.info("PROV0194 Error accessing URL: " + url + ": " + e.getMessage(), e);
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