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 com.att.research.datarouter.provisioning;
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27 import java.io.IOException;
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28 import java.io.InvalidObjectException;
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30 import javax.servlet.http.HttpServletRequest;
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31 import javax.servlet.http.HttpServletResponse;
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33 import org.json.JSONObject;
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35 import com.att.eelf.configuration.EELFLogger;
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36 import com.att.eelf.configuration.EELFManager;
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37 import com.att.research.datarouter.authz.AuthorizationResponse;
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38 import com.att.research.datarouter.provisioning.beans.EventLogRecord;
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39 import com.att.research.datarouter.provisioning.beans.Feed;
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40 import com.att.research.datarouter.provisioning.eelf.EelfMsgs;
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43 * This servlet handles provisioning for the <feedURL> which is generated by the provisioning
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44 * server to handle a particular feed. It supports DELETE to mark the feed as deleted,
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45 * and GET to retrieve information about the feed, and PUT to modify the feed.
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47 * @author Robert Eby
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50 @SuppressWarnings("serial")
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51 public class FeedServlet extends ProxyServlet {
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53 //Adding EELF Logger Rally:US664892
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54 private static EELFLogger eelflogger = EELFManager.getInstance().getLogger("com.att.research.datarouter.provisioning.FeedServlet");
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57 * Delete the Feed at the address /feed/<feednumber>.
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58 * See the <i>Deleting a Feed</i> section in the <b>Provisioning API</b>
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59 * document for details on how this method should be invoked.
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62 public void doDelete(HttpServletRequest req, HttpServletResponse resp) throws IOException {
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63 setIpAndFqdnForEelf("doDelete");
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64 eelflogger.info(EelfMsgs.MESSAGE_WITH_BEHALF_AND_FEEDID, req.getHeader(BEHALF_HEADER),getIdFromPath(req)+"");
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65 EventLogRecord elr = new EventLogRecord(req);
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66 String message = isAuthorizedForProvisioning(req);
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67 if (message != null) {
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68 elr.setMessage(message);
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69 elr.setResult(HttpServletResponse.SC_FORBIDDEN);
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70 eventlogger.info(elr);
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71 resp.sendError(HttpServletResponse.SC_FORBIDDEN, message);
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74 if (isProxyServer()) {
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75 super.doDelete(req, resp);
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78 String bhdr = req.getHeader(BEHALF_HEADER);
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80 message = "Missing "+BEHALF_HEADER+" header.";
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81 elr.setMessage(message);
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82 elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
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83 eventlogger.info(elr);
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84 resp.sendError(HttpServletResponse.SC_BAD_REQUEST, message);
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87 int feedid = getIdFromPath(req);
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89 message = "Missing or bad feed number.";
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90 elr.setMessage(message);
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91 elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
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92 eventlogger.info(elr);
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93 resp.sendError(HttpServletResponse.SC_BAD_REQUEST, message);
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96 Feed feed = Feed.getFeedById(feedid);
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97 if (feed == null || feed.isDeleted()) {
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98 message = "Missing or bad feed number.";
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99 elr.setMessage(message);
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100 elr.setResult(HttpServletResponse.SC_NOT_FOUND);
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101 eventlogger.info(elr);
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102 resp.sendError(HttpServletResponse.SC_NOT_FOUND, message);
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105 // Check with the Authorizer
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106 AuthorizationResponse aresp = authz.decide(req);
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107 if (! aresp.isAuthorized()) {
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108 message = "Policy Engine disallows access.";
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109 elr.setMessage(message);
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110 elr.setResult(HttpServletResponse.SC_FORBIDDEN);
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111 eventlogger.info(elr);
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112 resp.sendError(HttpServletResponse.SC_FORBIDDEN, message);
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116 // Delete FEED table entry (set DELETED flag)
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117 feed.setDeleted(true);
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118 if (doUpdate(feed)) {
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121 elr.setResult(HttpServletResponse.SC_NO_CONTENT);
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122 eventlogger.info(elr);
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123 resp.setStatus(HttpServletResponse.SC_NO_CONTENT);
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124 provisioningDataChanged();
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126 // Something went wrong with the UPDATE
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127 elr.setResult(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
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128 eventlogger.info(elr);
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129 resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, DB_PROBLEM_MSG);
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133 * Get information on the feed at the address /feed/<feednumber>.
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134 * See the <i>Retrieving Information about a Feed</i> section in the <b>Provisioning API</b>
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135 * document for details on how this method should be invoked.
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138 public void doGet(HttpServletRequest req, HttpServletResponse resp) throws IOException {
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139 setIpAndFqdnForEelf("doGet");
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140 eelflogger.info(EelfMsgs.MESSAGE_WITH_BEHALF_AND_FEEDID, req.getHeader(BEHALF_HEADER),getIdFromPath(req)+"");
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141 EventLogRecord elr = new EventLogRecord(req);
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142 String message = isAuthorizedForProvisioning(req);
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143 if (message != null) {
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144 elr.setMessage(message);
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145 elr.setResult(HttpServletResponse.SC_FORBIDDEN);
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146 eventlogger.info(elr);
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147 resp.sendError(HttpServletResponse.SC_FORBIDDEN, message);
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150 if (isProxyServer()) {
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151 super.doGet(req, resp);
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154 String bhdr = req.getHeader(BEHALF_HEADER);
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155 if (bhdr == null) {
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156 message = "Missing "+BEHALF_HEADER+" header.";
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157 elr.setMessage(message);
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158 elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
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159 eventlogger.info(elr);
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160 resp.sendError(HttpServletResponse.SC_BAD_REQUEST, message);
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163 int feedid = getIdFromPath(req);
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165 message = "Missing or bad feed number.";
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166 elr.setMessage(message);
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167 elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
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168 eventlogger.info(elr);
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169 resp.sendError(HttpServletResponse.SC_BAD_REQUEST, message);
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172 Feed feed = Feed.getFeedById(feedid);
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173 if (feed == null || feed.isDeleted()) {
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174 message = "Missing or bad feed number.";
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175 elr.setMessage(message);
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176 elr.setResult(HttpServletResponse.SC_NOT_FOUND);
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177 eventlogger.info(elr);
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178 resp.sendError(HttpServletResponse.SC_NOT_FOUND, message);
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181 // Check with the Authorizer
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182 AuthorizationResponse aresp = authz.decide(req);
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183 if (! aresp.isAuthorized()) {
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184 message = "Policy Engine disallows access.";
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185 elr.setMessage(message);
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186 elr.setResult(HttpServletResponse.SC_FORBIDDEN);
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187 eventlogger.info(elr);
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188 resp.sendError(HttpServletResponse.SC_FORBIDDEN, message);
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193 elr.setResult(HttpServletResponse.SC_OK);
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194 eventlogger.info(elr);
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195 resp.setStatus(HttpServletResponse.SC_OK);
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196 resp.setContentType(FEEDFULL_CONTENT_TYPE);
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197 resp.getOutputStream().print(feed.asJSONObject(true).toString());
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200 * PUT on the <feedURL> for a feed.
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201 * See the <i>Modifying a Feed</i> section in the <b>Provisioning API</b>
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202 * document for details on how this method should be invoked.
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205 public void doPut(HttpServletRequest req, HttpServletResponse resp) throws IOException {
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206 setIpAndFqdnForEelf("doPut");
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207 eelflogger.info(EelfMsgs.MESSAGE_WITH_BEHALF_AND_FEEDID, req.getHeader(BEHALF_HEADER),getIdFromPath(req)+"");
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208 EventLogRecord elr = new EventLogRecord(req);
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209 String message = isAuthorizedForProvisioning(req);
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210 if (message != null) {
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211 elr.setMessage(message);
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212 elr.setResult(HttpServletResponse.SC_FORBIDDEN);
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213 eventlogger.info(elr);
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214 resp.sendError(HttpServletResponse.SC_FORBIDDEN, message);
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217 if (isProxyServer()) {
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218 super.doPut(req, resp);
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221 String bhdr = req.getHeader(BEHALF_HEADER);
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222 if (bhdr == null) {
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223 message = "Missing "+BEHALF_HEADER+" header.";
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224 elr.setMessage(message);
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225 elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
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226 eventlogger.info(elr);
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227 resp.sendError(HttpServletResponse.SC_BAD_REQUEST, message);
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230 int feedid = getIdFromPath(req);
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232 message = "Missing or bad feed number.";
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233 elr.setMessage(message);
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234 elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
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235 eventlogger.info(elr);
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236 resp.sendError(HttpServletResponse.SC_BAD_REQUEST, message);
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239 Feed oldFeed = Feed.getFeedById(feedid);
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240 if (oldFeed == null || oldFeed.isDeleted()) {
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241 message = "Missing or bad feed number.";
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242 elr.setMessage(message);
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243 elr.setResult(HttpServletResponse.SC_NOT_FOUND);
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244 eventlogger.info(elr);
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245 resp.sendError(HttpServletResponse.SC_NOT_FOUND, message);
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248 // check content type is FEED_CONTENT_TYPE, version 1.0
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249 ContentHeader ch = getContentHeader(req);
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250 String ver = ch.getAttribute("version");
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251 if (!ch.getType().equals(FEED_BASECONTENT_TYPE) || !(ver.equals("1.0") || ver.equals("2.0"))) {
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252 message = "Incorrect content-type";
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253 elr.setMessage(message);
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254 elr.setResult(HttpServletResponse.SC_UNSUPPORTED_MEDIA_TYPE);
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255 eventlogger.info(elr);
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256 resp.sendError(HttpServletResponse.SC_UNSUPPORTED_MEDIA_TYPE, message);
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259 JSONObject jo = getJSONfromInput(req);
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261 message = "Badly formed JSON";
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262 elr.setMessage(message);
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263 elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
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264 eventlogger.info(elr);
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265 resp.sendError(HttpServletResponse.SC_BAD_REQUEST, message);
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268 if (intlogger.isDebugEnabled())
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269 intlogger.debug(jo.toString());
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272 feed = new Feed(jo);
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273 } catch (InvalidObjectException e) {
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274 message = e.getMessage();
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275 elr.setMessage(message);
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276 elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
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277 eventlogger.info(elr);
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278 resp.sendError(HttpServletResponse.SC_BAD_REQUEST, message);
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281 feed.setFeedid(feedid);
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282 feed.setPublisher(bhdr); // set from X-ATT-DR-ON-BEHALF-OF header
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284 String subjectgroup = (req.getHeader("X-ATT-DR-ON-BEHALF-OF-GROUP")); //Adding for group feature:Rally US708115
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285 if (!oldFeed.getPublisher().equals(feed.getPublisher()) && subjectgroup == null) {
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286 message = "This feed must be modified by the same publisher that created it.";
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287 elr.setMessage(message);
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288 elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
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289 eventlogger.info(elr);
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290 resp.sendError(HttpServletResponse.SC_BAD_REQUEST, message);
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293 if (!oldFeed.getName().equals(feed.getName())) {
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294 message = "The name of the feed may not be updated.";
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295 elr.setMessage(message);
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296 elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
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297 eventlogger.info(elr);
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298 resp.sendError(HttpServletResponse.SC_BAD_REQUEST, message);
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301 if (!oldFeed.getVersion().equals(feed.getVersion())) {
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302 message = "The version of the feed may not be updated.";
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303 elr.setMessage(message);
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304 elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
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305 eventlogger.info(elr);
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306 resp.sendError(HttpServletResponse.SC_BAD_REQUEST, message);
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309 // Check with the Authorizer
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310 AuthorizationResponse aresp = authz.decide(req);
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311 if (! aresp.isAuthorized()) {
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312 message = "Policy Engine disallows access.";
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313 elr.setMessage(message);
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314 elr.setResult(HttpServletResponse.SC_FORBIDDEN);
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315 eventlogger.info(elr);
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316 resp.sendError(HttpServletResponse.SC_FORBIDDEN, message);
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320 // Update FEEDS table entries
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321 if (doUpdate(feed)) {
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323 elr.setResult(HttpServletResponse.SC_OK);
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324 eventlogger.info(elr);
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325 resp.setStatus(HttpServletResponse.SC_OK);
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326 resp.setContentType(FEEDFULL_CONTENT_TYPE);
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327 resp.getOutputStream().print(feed.asLimitedJSONObject().toString());
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330 /**Change Owner ship of Feed //Adding for group feature:Rally US708115*/
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331 if (jo.has("changeowner") && subjectgroup != null) {
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332 Boolean changeowner = (Boolean) jo.get("changeowner");
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333 if (changeowner != null && changeowner.equals(true)) {
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334 feed.setPublisher(req.getHeader(BEHALF_HEADER));
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335 feed.changeOwnerShip();
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338 /***End of change ownership*/
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340 provisioningDataChanged();
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342 // Something went wrong with the UPDATE
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343 elr.setResult(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
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344 eventlogger.info(elr);
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345 resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, DB_PROBLEM_MSG);
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349 * POST on the <feedURL> -- not supported.
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352 public void doPost(HttpServletRequest req, HttpServletResponse resp) throws IOException {
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353 setIpAndFqdnForEelf("doPost");
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354 eelflogger.info(EelfMsgs.MESSAGE_WITH_BEHALF, req.getHeader(BEHALF_HEADER));
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355 String message = "POST not allowed for the feedURL.";
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356 EventLogRecord elr = new EventLogRecord(req);
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357 elr.setMessage(message);
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358 elr.setResult(HttpServletResponse.SC_METHOD_NOT_ALLOWED);
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359 eventlogger.info(elr);
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360 resp.sendError(HttpServletResponse.SC_METHOD_NOT_ALLOWED, message);
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