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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47 * This servlet handles provisioning for the <subscriptionURL> which is generated by the provisioning server to
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48 * handle the inspection, modification, and deletion of a particular subscription to a feed. It supports DELETE to
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49 * delete a subscription, GET to retrieve information about the subscription, and PUT to modify the subscription. In DR
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50 * 3.0, POST is also supported in order to reset the subscription timers for individual subscriptions.
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52 * @author Robert Eby
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55 @SuppressWarnings("serial")
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56 public class SubscriptionServlet extends ProxyServlet {
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58 private static final String SUBCNTRL_CONTENT_TYPE = "application/vnd.dmaap-dr.subscription-control";
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59 //Adding EELF Logger Rally:US664892
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60 private static EELFLogger eelfLogger = EELFManager.getInstance()
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61 .getLogger(SubscriptionServlet.class);
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68 * DELETE on the <subscriptionUrl> -- delete a subscription. See the <i>Deleting a Subscription</i> section in
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69 * the <b>Provisioning API</b> document for details on how this method should be invoked.
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72 public void doDelete(HttpServletRequest req, HttpServletResponse resp) {
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73 setIpFqdnRequestIDandInvocationIDForEelf("doDelete", req);
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74 eelfLogger.info(EelfMsgs.ENTRY);
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76 eelfLogger.info(EelfMsgs.MESSAGE_WITH_BEHALF_AND_SUBID, req.getHeader(BEHALF_HEADER), getIdFromPath(req) + "");
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77 EventLogRecord elr = new EventLogRecord(req);
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78 String message = isAuthorizedForProvisioning(req);
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79 if (message != null) {
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80 elr.setMessage(message);
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81 elr.setResult(HttpServletResponse.SC_FORBIDDEN);
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82 eventlogger.error(elr.toString());
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83 sendResponseError(resp, HttpServletResponse.SC_FORBIDDEN, message, eventlogger);
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86 if (isProxyServer()) {
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87 super.doDelete(req, resp);
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90 String bhdr = req.getHeader(BEHALF_HEADER);
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92 message = MISSING_ON_BEHALF;
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93 elr.setMessage(message);
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94 elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
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95 eventlogger.error(elr.toString());
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96 sendResponseError(resp, HttpServletResponse.SC_BAD_REQUEST, message, eventlogger);
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99 int subid = getIdFromPath(req);
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102 elr.setMessage(message);
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103 elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
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104 eventlogger.error(elr.toString());
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105 sendResponseError(resp, HttpServletResponse.SC_BAD_REQUEST, message, eventlogger);
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108 Subscription sub = Subscription.getSubscriptionById(subid);
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111 elr.setMessage(message);
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112 elr.setResult(HttpServletResponse.SC_NOT_FOUND);
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113 eventlogger.error(elr.toString());
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114 sendResponseError(resp, HttpServletResponse.SC_NOT_FOUND, message, eventlogger);
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118 * START - AAF changes
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119 * TDP EPIC US# 307413
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120 * CADI code - check on permissions based on Legacy/AAF users to allow to delete/remove subscription
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122 String aafInstance = sub.getAafInstance();
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123 if (aafInstance == null || "".equals(aafInstance) || "legacy".equalsIgnoreCase(aafInstance)) {
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124 AuthorizationResponse aresp = authz.decide(req);
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125 if (!aresp.isAuthorized()) {
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126 message = POLICY_ENGINE;
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127 elr.setMessage(message);
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128 elr.setResult(HttpServletResponse.SC_FORBIDDEN);
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129 eventlogger.error(elr.toString());
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130 sendResponseError(resp, HttpServletResponse.SC_FORBIDDEN, message, eventlogger);
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134 String permission = getSubscriberPermission(aafInstance, BaseServlet.DELETE_PERMISSION);
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135 eventlogger.info("SubscriptionServlet.doDelete().. Permission String - " + permission);
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136 if (!req.isUserInRole(permission)) {
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137 message = "AAF disallows access to permission - " + permission;
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138 elr.setMessage(message);
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139 elr.setResult(HttpServletResponse.SC_FORBIDDEN);
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140 eventlogger.error(elr.toString());
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141 sendResponseError(resp, HttpServletResponse.SC_FORBIDDEN, message, eventlogger);
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146 * END - AAF changes
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148 // Delete Subscription
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149 if (doDelete(sub)) {
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152 elr.setResult(HttpServletResponse.SC_NO_CONTENT);
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153 eventlogger.info(elr.toString());
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154 resp.setStatus(HttpServletResponse.SC_NO_CONTENT);
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155 provisioningDataChanged();
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157 // Something went wrong with the DELETE
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158 elr.setResult(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
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159 eventlogger.error(elr.toString());
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160 sendResponseError(resp, HttpServletResponse.SC_INTERNAL_SERVER_ERROR, DB_PROBLEM_MSG, intlogger);
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163 eelfLogger.info(EelfMsgs.EXIT);
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168 * GET on the <subscriptionUrl> -- get information about a subscription. See the <i>Retreiving Information
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169 * about a Subscription</i> section in the <b>Provisioning API</b> document for details on how this method should be
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173 public void doGet(HttpServletRequest req, HttpServletResponse resp) {
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174 setIpFqdnRequestIDandInvocationIDForEelf("doGet", req);
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175 eelfLogger.info(EelfMsgs.ENTRY);
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177 eelfLogger.info(EelfMsgs.MESSAGE_WITH_BEHALF_AND_SUBID, req.getHeader(BEHALF_HEADER), getIdFromPath(req) + "");
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178 EventLogRecord elr = new EventLogRecord(req);
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179 String message = isAuthorizedForProvisioning(req);
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180 if (message != null) {
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181 elr.setMessage(message);
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182 elr.setResult(HttpServletResponse.SC_FORBIDDEN);
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183 eventlogger.error(elr.toString());
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184 sendResponseError(resp, HttpServletResponse.SC_FORBIDDEN, message, eventlogger);
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187 if (isProxyServer()) {
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188 super.doGet(req, resp);
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191 String bhdr = req.getHeader(BEHALF_HEADER);
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192 if (bhdr == null) {
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193 message = MISSING_ON_BEHALF;
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194 elr.setMessage(message);
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195 elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
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196 eventlogger.error(elr.toString());
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197 sendResponseError(resp, HttpServletResponse.SC_BAD_REQUEST, message, eventlogger);
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200 int subid = getIdFromPath(req);
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203 elr.setMessage(message);
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204 elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
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205 eventlogger.error(elr.toString());
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206 sendResponseError(resp, HttpServletResponse.SC_BAD_REQUEST, message, eventlogger);
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209 Subscription sub = Subscription.getSubscriptionById(subid);
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212 elr.setMessage(message);
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213 elr.setResult(HttpServletResponse.SC_NOT_FOUND);
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214 eventlogger.error(elr.toString());
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215 sendResponseError(resp, HttpServletResponse.SC_NOT_FOUND, message, eventlogger);
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218 // Check with the Authorizer
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219 AuthorizationResponse aresp = authz.decide(req);
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220 if (!aresp.isAuthorized()) {
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221 message = POLICY_ENGINE;
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222 elr.setMessage(message);
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223 elr.setResult(HttpServletResponse.SC_FORBIDDEN);
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224 eventlogger.error(elr.toString());
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225 sendResponseError(resp, HttpServletResponse.SC_FORBIDDEN, message, eventlogger);
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230 elr.setResult(HttpServletResponse.SC_OK);
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231 eventlogger.info(elr.toString());
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232 resp.setStatus(HttpServletResponse.SC_OK);
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233 resp.setContentType(SUBFULL_CONTENT_TYPE);
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235 resp.getOutputStream().print(sub.asJSONObject(true).toString());
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236 } catch (IOException ioe) {
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237 eventlogger.error("PROV0191 SubscriptionServlet.doGet: " + ioe.getMessage(), ioe);
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240 eelfLogger.info(EelfMsgs.EXIT);
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245 * PUT on the <subscriptionUrl> -- modify a subscription. See the <i>Modifying a Subscription</i> section in
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246 * the <b>Provisioning API</b> document for details on how this method should be invoked.
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249 public void doPut(HttpServletRequest req, HttpServletResponse resp) {
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250 setIpFqdnRequestIDandInvocationIDForEelf("doPut", req);
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251 eelfLogger.info(EelfMsgs.ENTRY);
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253 eelfLogger.info(EelfMsgs.MESSAGE_WITH_BEHALF_AND_SUBID, req.getHeader(BEHALF_HEADER), getIdFromPath(req) + "");
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254 EventLogRecord elr = new EventLogRecord(req);
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255 String message = isAuthorizedForProvisioning(req);
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256 if (message != null) {
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257 elr.setMessage(message);
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258 elr.setResult(HttpServletResponse.SC_FORBIDDEN);
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259 eventlogger.error(elr.toString());
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260 sendResponseError(resp, HttpServletResponse.SC_FORBIDDEN, message, eventlogger);
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263 if (isProxyServer()) {
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264 super.doPut(req, resp);
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267 String bhdr = req.getHeader(BEHALF_HEADER);
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268 if (bhdr == null) {
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269 message = MISSING_ON_BEHALF;
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270 elr.setMessage(message);
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271 elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
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272 eventlogger.error(elr.toString());
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273 sendResponseError(resp, HttpServletResponse.SC_BAD_REQUEST, message, eventlogger);
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276 int subid = getIdFromPath(req);
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279 elr.setMessage(message);
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280 elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
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281 eventlogger.error(elr.toString());
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282 sendResponseError(resp, HttpServletResponse.SC_BAD_REQUEST, message, eventlogger);
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285 Subscription oldsub = Subscription.getSubscriptionById(subid);
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286 if (oldsub == null) {
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288 elr.setMessage(message);
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289 elr.setResult(HttpServletResponse.SC_NOT_FOUND);
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290 eventlogger.error(elr.toString());
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291 sendResponseError(resp, HttpServletResponse.SC_NOT_FOUND, message, eventlogger);
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294 // check content type is SUB_CONTENT_TYPE, version 1.0
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295 ContentHeader ch = getContentHeader(req);
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296 String ver = ch.getAttribute("version");
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297 if (!ch.getType().equals(SUB_BASECONTENT_TYPE) || !("1.0".equals(ver) || "2.0".equals(ver))) {
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298 message = "Incorrect content-type";
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299 elr.setMessage(message);
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300 elr.setResult(HttpServletResponse.SC_UNSUPPORTED_MEDIA_TYPE);
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301 eventlogger.error(elr.toString());
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302 sendResponseError(resp, HttpServletResponse.SC_UNSUPPORTED_MEDIA_TYPE, message, eventlogger);
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305 JSONObject jo = getJSONfromInput(req);
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307 message = BAD_JSON;
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308 elr.setMessage(message);
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309 elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
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310 eventlogger.error(elr.toString());
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311 sendResponseError(resp, HttpServletResponse.SC_BAD_REQUEST, message, eventlogger);
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314 if (intlogger.isDebugEnabled()) {
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315 intlogger.debug(jo.toString());
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317 Subscription sub = null;
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319 sub = new Subscription(jo);
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320 } catch (InvalidObjectException e) {
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321 message = e.getMessage();
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322 elr.setMessage(message);
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323 elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
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324 eventlogger.error(elr.toString(), e);
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325 sendResponseError(resp, HttpServletResponse.SC_BAD_REQUEST, message, eventlogger);
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330 * START - AAF changes
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331 * TDP EPIC US# 307413
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332 * CADI code - check on permissions based on Legacy/AAF users to allow to delete/remove subscription
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334 String aafInstance = sub.getAafInstance();
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335 if (aafInstance == null || "".equals(aafInstance) || "legacy".equalsIgnoreCase(aafInstance)) {
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336 AuthorizationResponse aresp = authz.decide(req);
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337 if (!aresp.isAuthorized()) {
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338 message = POLICY_ENGINE;
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339 elr.setMessage(message);
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340 elr.setResult(HttpServletResponse.SC_FORBIDDEN);
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341 eventlogger.error(elr.toString());
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342 sendResponseError(resp, HttpServletResponse.SC_FORBIDDEN, message, eventlogger);
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346 String permission = getSubscriberPermission(aafInstance, BaseServlet.EDIT_PERMISSION);
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347 eventlogger.info("SubscriptionServlet.doDelete().. Permission String - " + permission);
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348 if (!req.isUserInRole(permission)) {
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349 message = "AAF disallows access to permission - " + permission;
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350 elr.setMessage(message);
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351 elr.setResult(HttpServletResponse.SC_FORBIDDEN);
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352 eventlogger.error(elr.toString());
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353 sendResponseError(resp, HttpServletResponse.SC_FORBIDDEN, message, eventlogger);
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358 * END - AAF changes
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360 sub.setSubid(oldsub.getSubid());
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361 sub.setFeedid(oldsub.getFeedid());
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362 sub.setSubscriber(bhdr); // set from X-DMAAP-DR-ON-BEHALF-OF header
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364 String subjectgroup = (req.getHeader("X-DMAAP-DR-ON-BEHALF-OF-GROUP")); //Adding for group feature:Rally US708115
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365 if (!oldsub.getSubscriber().equals(sub.getSubscriber()) && subjectgroup == null) {
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366 message = "This subscriber must be modified by the same subscriber that created it.";
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367 elr.setMessage(message);
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368 elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
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369 eventlogger.error(elr.toString());
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370 sendResponseError(resp, HttpServletResponse.SC_BAD_REQUEST, message, eventlogger);
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374 // Update SUBSCRIPTIONS table entries
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375 if (doUpdate(sub)) {
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377 elr.setResult(HttpServletResponse.SC_OK);
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378 eventlogger.info(elr.toString());
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379 resp.setStatus(HttpServletResponse.SC_OK);
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380 resp.setContentType(SUBFULL_CONTENT_TYPE);
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382 resp.getOutputStream().print(sub.asLimitedJSONObject().toString());
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383 } catch (IOException ioe) {
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384 eventlogger.error("PROV0192 SubscriptionServlet.doPut: " + ioe.getMessage(), ioe);
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387 /**Change Owner ship of Subscriber Adding for group feature:Rally US708115*/
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388 if (jo.has("changeowner") && subjectgroup != null) {
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390 Boolean changeowner = (Boolean) jo.get("changeowner");
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391 if (changeowner != null && changeowner.equals(true)) {
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392 sub.setSubscriber(req.getHeader(BEHALF_HEADER));
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393 sub.changeOwnerShip();
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395 } catch (JSONException je) {
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396 eventlogger.error("PROV0193 SubscriptionServlet.doPut: " + je.getMessage(), je);
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399 /***End of change ownership*/
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401 provisioningDataChanged();
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403 // Something went wrong with the UPDATE
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404 elr.setResult(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
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405 eventlogger.error(elr.toString());
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406 sendResponseError(resp, HttpServletResponse.SC_INTERNAL_SERVER_ERROR, DB_PROBLEM_MSG, intlogger);
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409 eelfLogger.info(EelfMsgs.EXIT);
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414 * POST on the <subscriptionUrl> -- control a subscription. See the <i>Resetting a Subscription's Retry
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415 * Schedule</i> section in the <b>Provisioning API</b> document for details on how this method should be invoked.
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418 public void doPost(HttpServletRequest req, HttpServletResponse resp) {
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420 setIpFqdnRequestIDandInvocationIDForEelf("doPost", req);
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421 eelfLogger.info(EelfMsgs.ENTRY);
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423 eelfLogger.info(EelfMsgs.MESSAGE_WITH_BEHALF, req.getHeader(BEHALF_HEADER));
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424 EventLogRecord elr = new EventLogRecord(req);
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425 String message = isAuthorizedForProvisioning(req);
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426 if (message != null) {
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427 elr.setMessage(message);
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428 elr.setResult(HttpServletResponse.SC_FORBIDDEN);
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429 eventlogger.error(elr.toString());
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430 sendResponseError(resp, HttpServletResponse.SC_FORBIDDEN, message, eventlogger);
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433 if (isProxyServer()) {
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434 super.doPost(req, resp);
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437 String bhdr = req.getHeader(BEHALF_HEADER);
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438 if (bhdr == null) {
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439 message = MISSING_ON_BEHALF;
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440 elr.setMessage(message);
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441 elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
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442 eventlogger.error(elr.toString());
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443 sendResponseError(resp, HttpServletResponse.SC_BAD_REQUEST, message, eventlogger);
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446 final int subid = getIdFromPath(req);
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447 if (subid < 0 || Subscription.getSubscriptionById(subid) == null) {
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449 elr.setMessage(message);
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450 elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
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451 eventlogger.error(elr.toString());
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452 sendResponseError(resp, HttpServletResponse.SC_BAD_REQUEST, message, eventlogger);
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455 // check content type is SUBCNTRL_CONTENT_TYPE, version 1.0
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456 ContentHeader ch = getContentHeader(req);
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457 String ver = ch.getAttribute("version");
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458 if (!ch.getType().equals(SUBCNTRL_CONTENT_TYPE) || !"1.0".equals(ver)) {
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459 message = "Incorrect content-type";
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460 elr.setMessage(message);
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461 elr.setResult(HttpServletResponse.SC_UNSUPPORTED_MEDIA_TYPE);
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462 eventlogger.error(elr.toString());
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463 sendResponseError(resp, HttpServletResponse.SC_UNSUPPORTED_MEDIA_TYPE, message, eventlogger);
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466 // Check with the Authorizer
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467 AuthorizationResponse aresp = authz.decide(req);
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468 if (!aresp.isAuthorized()) {
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469 message = POLICY_ENGINE;
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470 elr.setMessage(message);
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471 elr.setResult(HttpServletResponse.SC_FORBIDDEN);
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472 eventlogger.error(elr.toString());
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473 sendResponseError(resp, HttpServletResponse.SC_FORBIDDEN, message, eventlogger);
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476 JSONObject jo = getJSONfromInput(req);
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478 message = BAD_JSON;
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479 elr.setMessage(message);
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480 elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
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481 eventlogger.error(elr.toString());
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482 sendResponseError(resp, HttpServletResponse.SC_BAD_REQUEST, message, eventlogger);
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486 // Only the active POD sends notifications
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487 boolean active = SynchronizerTask.getSynchronizer().isActive();
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488 boolean b = jo.getBoolean("failed");
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489 if (active && !b) {
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490 // Notify all nodes to reset the subscription
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491 SubscriberNotifyThread t = new SubscriberNotifyThread();
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492 t.resetSubscription(subid);
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496 elr.setResult(HttpServletResponse.SC_ACCEPTED);
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497 eventlogger.info(elr.toString());
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498 resp.setStatus(HttpServletResponse.SC_ACCEPTED);
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499 } catch (JSONException e) {
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500 message = BAD_JSON;
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501 elr.setMessage(message);
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502 elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
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503 eventlogger.error(elr.toString(), e);
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504 sendResponseError(resp, HttpServletResponse.SC_BAD_REQUEST, message, eventlogger);
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507 eelfLogger.info(EelfMsgs.EXIT);
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512 * 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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513 * for a subscription.
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515 public static class SubscriberNotifyThread extends Thread {
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517 static final String URL_TEMPLATE = "http://%s/internal/resetSubscription/%d";
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518 private List<String> urls = new ArrayList<>();
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520 SubscriberNotifyThread() {
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521 setName("SubscriberNotifyThread");
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524 void resetSubscription(int subid) {
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525 for (String nodename : BaseServlet.getNodes()) {
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526 String u = String.format(URL_TEMPLATE, nodename, subid);
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532 public void run() {
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534 while (!urls.isEmpty()) {
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535 String url = urls.remove(0);
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536 forceGetThrough(url);
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538 } catch (Exception e) {
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539 intlogger.warn("PROV0195 Caught exception in SubscriberNotifyThread: " + e.getMessage(), e);
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543 private void forceGetThrough(String url) {
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545 URL urlObj = new URL(url);
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546 HttpURLConnection conn = (HttpURLConnection) urlObj.openConnection();
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548 conn.getContentLength(); // Force the GET through
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550 } catch (IOException e) {
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551 intlogger.info("PROV0194 Error accessing URL: " + url + ": " + e.getMessage(), e);
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