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 java.io.IOException;
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28 import java.io.InvalidObjectException;
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29 import java.net.HttpURLConnection;
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30 import java.net.URL;
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31 import java.util.List;
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32 import java.util.Vector;
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34 import javax.servlet.http.HttpServletRequest;
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35 import javax.servlet.http.HttpServletResponse;
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37 import org.json.JSONException;
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38 import org.json.JSONObject;
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39 import org.onap.dmaap.datarouter.authz.AuthorizationResponse;
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40 import org.onap.dmaap.datarouter.provisioning.beans.EventLogRecord;
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41 import org.onap.dmaap.datarouter.provisioning.beans.Subscription;
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42 import org.onap.dmaap.datarouter.provisioning.eelf.EelfMsgs;
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44 import com.att.eelf.configuration.EELFLogger;
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45 import com.att.eelf.configuration.EELFManager;
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47 import static org.onap.dmaap.datarouter.provisioning.utils.HttpServletUtils.sendResponseError;
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50 * This servlet handles provisioning for the <subscriptionURL> which is generated by the provisioning server to
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51 * handle the inspection, modification, and deletion of a particular subscription to a feed. It supports DELETE to
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52 * delete a subscription, GET to retrieve information about the subscription, and PUT to modify the subscription. In DR
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53 * 3.0, POST is also supported in order to reset the subscription timers for individual subscriptions.
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55 * @author Robert Eby
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58 @SuppressWarnings("serial")
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59 public class SubscriptionServlet extends ProxyServlet {
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61 private static final String SUBCNTRL_CONTENT_TYPE = "application/vnd.dmaap-dr.subscription-control";
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62 //Adding EELF Logger Rally:US664892
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63 private static EELFLogger eelfLogger = EELFManager.getInstance()
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64 .getLogger(SubscriptionServlet.class);
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71 * DELETE on the <subscriptionUrl> -- delete a subscription. See the <i>Deleting a Subscription</i> section in
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72 * the <b>Provisioning API</b> document for details on how this method should be invoked.
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75 public void doDelete(HttpServletRequest req, HttpServletResponse resp) {
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76 setIpFqdnRequestIDandInvocationIDForEelf("doDelete", req);
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77 eelfLogger.info(EelfMsgs.ENTRY);
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79 eelfLogger.info(EelfMsgs.MESSAGE_WITH_BEHALF_AND_SUBID, req.getHeader(BEHALF_HEADER), getIdFromPath(req) + "");
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80 EventLogRecord elr = new EventLogRecord(req);
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81 String message = isAuthorizedForProvisioning(req);
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82 if (message != null) {
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83 elr.setMessage(message);
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84 elr.setResult(HttpServletResponse.SC_FORBIDDEN);
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85 eventlogger.error(elr.toString());
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86 sendResponseError(resp, HttpServletResponse.SC_FORBIDDEN, message, eventlogger);
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89 if (isProxyServer()) {
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90 super.doDelete(req, resp);
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93 String bhdr = req.getHeader(BEHALF_HEADER);
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95 message = MISSING_ON_BEHALF;
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96 elr.setMessage(message);
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97 elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
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98 eventlogger.error(elr.toString());
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99 sendResponseError(resp, HttpServletResponse.SC_BAD_REQUEST, message, eventlogger);
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102 int subid = getIdFromPath(req);
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105 elr.setMessage(message);
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106 elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
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107 eventlogger.error(elr.toString());
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108 sendResponseError(resp, HttpServletResponse.SC_BAD_REQUEST, message, eventlogger);
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111 Subscription sub = Subscription.getSubscriptionById(subid);
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114 elr.setMessage(message);
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115 elr.setResult(HttpServletResponse.SC_NOT_FOUND);
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116 eventlogger.error(elr.toString());
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117 sendResponseError(resp, HttpServletResponse.SC_NOT_FOUND, message, eventlogger);
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121 * START - AAF changes
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122 * TDP EPIC US# 307413
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123 * CADI code - check on permissions based on Legacy/AAF users to allow to delete/remove subscription
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125 String aafInstance = sub.getAafInstance();
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126 if (aafInstance == null || "".equals(aafInstance) || "legacy".equalsIgnoreCase(aafInstance)) {
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127 AuthorizationResponse aresp = authz.decide(req);
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128 if (!aresp.isAuthorized()) {
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129 message = POLICY_ENGINE;
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130 elr.setMessage(message);
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131 elr.setResult(HttpServletResponse.SC_FORBIDDEN);
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132 eventlogger.error(elr.toString());
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133 sendResponseError(resp, HttpServletResponse.SC_FORBIDDEN, message, eventlogger);
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137 String permission = getSubscriberPermission(aafInstance, BaseServlet.DELETE_PERMISSION);
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138 eventlogger.info("SubscriptionServlet.doDelete().. Permission String - " + permission);
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139 if (!req.isUserInRole(permission)) {
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140 message = "AAF disallows access to permission - " + permission;
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141 elr.setMessage(message);
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142 elr.setResult(HttpServletResponse.SC_FORBIDDEN);
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143 eventlogger.error(elr.toString());
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144 sendResponseError(resp, HttpServletResponse.SC_FORBIDDEN, message, eventlogger);
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149 * END - AAF changes
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151 // Delete Subscription
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152 if (doDelete(sub)) {
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155 elr.setResult(HttpServletResponse.SC_NO_CONTENT);
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156 eventlogger.info(elr.toString());
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157 resp.setStatus(HttpServletResponse.SC_NO_CONTENT);
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158 provisioningDataChanged();
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160 // Something went wrong with the DELETE
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161 elr.setResult(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
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162 eventlogger.error(elr.toString());
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163 sendResponseError(resp, HttpServletResponse.SC_INTERNAL_SERVER_ERROR, DB_PROBLEM_MSG, intlogger);
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166 eelfLogger.info(EelfMsgs.EXIT);
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171 * GET on the <subscriptionUrl> -- get information about a subscription. See the <i>Retreiving Information
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172 * about a Subscription</i> section in the <b>Provisioning API</b> document for details on how this method should be
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176 public void doGet(HttpServletRequest req, HttpServletResponse resp) {
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177 setIpFqdnRequestIDandInvocationIDForEelf("doGet", req);
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178 eelfLogger.info(EelfMsgs.ENTRY);
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180 eelfLogger.info(EelfMsgs.MESSAGE_WITH_BEHALF_AND_SUBID, 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, req.getHeader(BEHALF_HEADER), getIdFromPath(req) + "");
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257 EventLogRecord elr = new EventLogRecord(req);
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258 String message = isAuthorizedForProvisioning(req);
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259 if (message != null) {
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260 elr.setMessage(message);
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261 elr.setResult(HttpServletResponse.SC_FORBIDDEN);
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262 eventlogger.error(elr.toString());
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263 sendResponseError(resp, HttpServletResponse.SC_FORBIDDEN, message, eventlogger);
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266 if (isProxyServer()) {
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267 super.doPut(req, resp);
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270 String bhdr = req.getHeader(BEHALF_HEADER);
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271 if (bhdr == null) {
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272 message = MISSING_ON_BEHALF;
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273 elr.setMessage(message);
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274 elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
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275 eventlogger.error(elr.toString());
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276 sendResponseError(resp, HttpServletResponse.SC_BAD_REQUEST, message, eventlogger);
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279 int subid = getIdFromPath(req);
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282 elr.setMessage(message);
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283 elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
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284 eventlogger.error(elr.toString());
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285 sendResponseError(resp, HttpServletResponse.SC_BAD_REQUEST, message, eventlogger);
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288 Subscription oldsub = Subscription.getSubscriptionById(subid);
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289 if (oldsub == null) {
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291 elr.setMessage(message);
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292 elr.setResult(HttpServletResponse.SC_NOT_FOUND);
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293 eventlogger.error(elr.toString());
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294 sendResponseError(resp, HttpServletResponse.SC_NOT_FOUND, message, eventlogger);
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297 // check content type is SUB_CONTENT_TYPE, version 1.0
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298 ContentHeader ch = getContentHeader(req);
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299 String ver = ch.getAttribute("version");
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300 if (!ch.getType().equals(SUB_BASECONTENT_TYPE) || !("1.0".equals(ver) || "2.0".equals(ver))) {
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301 message = "Incorrect content-type";
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302 elr.setMessage(message);
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303 elr.setResult(HttpServletResponse.SC_UNSUPPORTED_MEDIA_TYPE);
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304 eventlogger.error(elr.toString());
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305 sendResponseError(resp, HttpServletResponse.SC_UNSUPPORTED_MEDIA_TYPE, message, eventlogger);
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308 JSONObject jo = getJSONfromInput(req);
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310 message = BAD_JSON;
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311 elr.setMessage(message);
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312 elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
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313 eventlogger.error(elr.toString());
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314 sendResponseError(resp, HttpServletResponse.SC_BAD_REQUEST, message, eventlogger);
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317 if (intlogger.isDebugEnabled()) {
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318 intlogger.debug(jo.toString());
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320 Subscription sub = null;
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322 sub = new Subscription(jo);
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323 } catch (InvalidObjectException e) {
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324 message = e.getMessage();
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325 elr.setMessage(message);
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326 elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
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327 eventlogger.error(elr.toString(), e);
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328 sendResponseError(resp, HttpServletResponse.SC_BAD_REQUEST, message, eventlogger);
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333 * START - AAF changes
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334 * TDP EPIC US# 307413
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335 * CADI code - check on permissions based on Legacy/AAF users to allow to delete/remove subscription
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337 String aafInstance = sub.getAafInstance();
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338 if (aafInstance == null || "".equals(aafInstance) || "legacy".equalsIgnoreCase(aafInstance)) {
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339 AuthorizationResponse aresp = authz.decide(req);
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340 if (!aresp.isAuthorized()) {
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341 message = POLICY_ENGINE;
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342 elr.setMessage(message);
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343 elr.setResult(HttpServletResponse.SC_FORBIDDEN);
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344 eventlogger.error(elr.toString());
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345 sendResponseError(resp, HttpServletResponse.SC_FORBIDDEN, message, eventlogger);
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349 String permission = getSubscriberPermission(aafInstance, BaseServlet.EDIT_PERMISSION);
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350 eventlogger.info("SubscriptionServlet.doDelete().. Permission String - " + permission);
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351 if (!req.isUserInRole(permission)) {
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352 message = "AAF disallows access to permission - " + permission;
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353 elr.setMessage(message);
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354 elr.setResult(HttpServletResponse.SC_FORBIDDEN);
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355 eventlogger.error(elr.toString());
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356 sendResponseError(resp, HttpServletResponse.SC_FORBIDDEN, message, eventlogger);
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361 * END - AAF changes
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363 sub.setSubid(oldsub.getSubid());
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364 sub.setFeedid(oldsub.getFeedid());
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365 sub.setSubscriber(bhdr); // set from X-DMAAP-DR-ON-BEHALF-OF header
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367 String subjectgroup = (req.getHeader("X-DMAAP-DR-ON-BEHALF-OF-GROUP")); //Adding for group feature:Rally US708115
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368 if (!oldsub.getSubscriber().equals(sub.getSubscriber()) && subjectgroup == null) {
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369 message = "This subscriber must be modified by the same subscriber that created it.";
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370 elr.setMessage(message);
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371 elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
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372 eventlogger.error(elr.toString());
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373 sendResponseError(resp, HttpServletResponse.SC_BAD_REQUEST, message, eventlogger);
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377 // Update SUBSCRIPTIONS table entries
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378 if (doUpdate(sub)) {
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380 elr.setResult(HttpServletResponse.SC_OK);
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381 eventlogger.info(elr.toString());
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382 resp.setStatus(HttpServletResponse.SC_OK);
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383 resp.setContentType(SUBFULL_CONTENT_TYPE);
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385 resp.getOutputStream().print(sub.asLimitedJSONObject().toString());
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386 } catch (IOException ioe) {
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387 eventlogger.error("PROV0192 SubscriptionServlet.doPut: " + ioe.getMessage(), ioe);
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390 /**Change Owner ship of Subscriber Adding for group feature:Rally US708115*/
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391 if (jo.has("changeowner") && subjectgroup != null) {
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393 Boolean changeowner = (Boolean) jo.get("changeowner");
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394 if (changeowner != null && changeowner.equals(true)) {
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395 sub.setSubscriber(req.getHeader(BEHALF_HEADER));
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396 sub.changeOwnerShip();
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398 } catch (JSONException je) {
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399 eventlogger.error("PROV0193 SubscriptionServlet.doPut: " + je.getMessage(), je);
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402 /***End of change ownership*/
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404 provisioningDataChanged();
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406 // Something went wrong with the UPDATE
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407 elr.setResult(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
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408 eventlogger.error(elr.toString());
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409 sendResponseError(resp, HttpServletResponse.SC_INTERNAL_SERVER_ERROR, DB_PROBLEM_MSG, intlogger);
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412 eelfLogger.info(EelfMsgs.EXIT);
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417 * POST on the <subscriptionUrl> -- control a subscription. See the <i>Resetting a Subscription's Retry
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418 * Schedule</i> section in the <b>Provisioning API</b> document for details on how this method should be invoked.
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421 public void doPost(HttpServletRequest req, HttpServletResponse resp) {
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423 setIpFqdnRequestIDandInvocationIDForEelf("doPost", req);
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424 eelfLogger.info(EelfMsgs.ENTRY);
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426 eelfLogger.info(EelfMsgs.MESSAGE_WITH_BEHALF, req.getHeader(BEHALF_HEADER));
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427 EventLogRecord elr = new EventLogRecord(req);
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428 String message = isAuthorizedForProvisioning(req);
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429 if (message != null) {
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430 elr.setMessage(message);
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431 elr.setResult(HttpServletResponse.SC_FORBIDDEN);
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432 eventlogger.error(elr.toString());
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433 sendResponseError(resp, HttpServletResponse.SC_FORBIDDEN, message, eventlogger);
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436 if (isProxyServer()) {
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437 super.doPost(req, resp);
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440 String bhdr = req.getHeader(BEHALF_HEADER);
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441 if (bhdr == null) {
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442 message = MISSING_ON_BEHALF;
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443 elr.setMessage(message);
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444 elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
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445 eventlogger.error(elr.toString());
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446 sendResponseError(resp, HttpServletResponse.SC_BAD_REQUEST, message, eventlogger);
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449 final int subid = getIdFromPath(req);
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450 if (subid < 0 || Subscription.getSubscriptionById(subid) == null) {
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452 elr.setMessage(message);
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453 elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
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454 eventlogger.error(elr.toString());
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455 sendResponseError(resp, HttpServletResponse.SC_BAD_REQUEST, message, eventlogger);
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458 // check content type is SUBCNTRL_CONTENT_TYPE, version 1.0
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459 ContentHeader ch = getContentHeader(req);
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460 String ver = ch.getAttribute("version");
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461 if (!ch.getType().equals(SUBCNTRL_CONTENT_TYPE) || !"1.0".equals(ver)) {
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462 message = "Incorrect content-type";
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463 elr.setMessage(message);
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464 elr.setResult(HttpServletResponse.SC_UNSUPPORTED_MEDIA_TYPE);
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465 eventlogger.error(elr.toString());
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466 sendResponseError(resp, HttpServletResponse.SC_UNSUPPORTED_MEDIA_TYPE, message, eventlogger);
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469 // Check with the Authorizer
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470 AuthorizationResponse aresp = authz.decide(req);
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471 if (!aresp.isAuthorized()) {
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472 message = POLICY_ENGINE;
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473 elr.setMessage(message);
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474 elr.setResult(HttpServletResponse.SC_FORBIDDEN);
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475 eventlogger.error(elr.toString());
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476 sendResponseError(resp, HttpServletResponse.SC_FORBIDDEN, message, eventlogger);
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479 JSONObject jo = getJSONfromInput(req);
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481 message = BAD_JSON;
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482 elr.setMessage(message);
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483 elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
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484 eventlogger.error(elr.toString());
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485 sendResponseError(resp, HttpServletResponse.SC_BAD_REQUEST, message, eventlogger);
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489 // Only the active POD sends notifications
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490 boolean active = SynchronizerTask.getSynchronizer().isActive();
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491 boolean b = jo.getBoolean("failed");
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492 if (active && !b) {
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493 // Notify all nodes to reset the subscription
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494 SubscriberNotifyThread t = new SubscriberNotifyThread();
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495 t.resetSubscription(subid);
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499 elr.setResult(HttpServletResponse.SC_ACCEPTED);
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500 eventlogger.info(elr.toString());
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501 resp.setStatus(HttpServletResponse.SC_ACCEPTED);
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502 } catch (JSONException e) {
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503 message = BAD_JSON;
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504 elr.setMessage(message);
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505 elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
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506 eventlogger.error(elr.toString(), e);
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507 sendResponseError(resp, HttpServletResponse.SC_BAD_REQUEST, message, eventlogger);
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510 eelfLogger.info(EelfMsgs.EXIT);
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515 * 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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516 * for a subscription.
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518 public class SubscriberNotifyThread extends Thread {
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520 public static final String URL_TEMPLATE = "http://%s/internal/resetSubscription/%d";
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521 private List<String> urls = new Vector<>();
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523 public SubscriberNotifyThread() {
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524 setName("SubscriberNotifyThread");
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527 public void resetSubscription(int subid) {
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528 for (String nodename : BaseServlet.getNodes()) {
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529 String u = String.format(URL_TEMPLATE, nodename, subid);
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535 public void run() {
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538 while (!urls.isEmpty()) {
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539 String u = urls.remove(0);
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541 URL url = new URL(u);
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542 HttpURLConnection conn = (HttpURLConnection) url.openConnection();
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544 conn.getContentLength(); // Force the GET through
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546 } catch (IOException e) {
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547 intlogger.info("PROV0194 Error accessing URL: " + u + ": " + e.getMessage(), e);
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550 } catch (Exception e) {
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551 intlogger.warn("PROV0195 Caught exception in SubscriberNotifyThread: " + e.getMessage(), e);
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