datarouter-prov/src/main/java/org/onap/dmaap/datarouter/provisioning/SubscriptionServlet.java

   1 /*******************************************************************************\r
   2  * ============LICENSE_START==================================================\r
   3  * * org.onap.dmaap\r
   4  * * ===========================================================================\r
   5  * * Copyright © 2017 AT&T Intellectual Property. All rights reserved.\r
   6  * * ===========================================================================\r
   7  * * Licensed under the Apache License, Version 2.0 (the "License");\r
   8  * * you may not use this file except in compliance with the License.\r
   9  * * You may obtain a copy of the License at\r
  10  * *\r
  11  *  *      http://www.apache.org/licenses/LICENSE-2.0\r
  12  * *\r
  13  *  * Unless required by applicable law or agreed to in writing, software\r
  14  * * distributed under the License is distributed on an "AS IS" BASIS,\r
  15  * * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\r
  16  * * See the License for the specific language governing permissions and\r
  17  * * limitations under the License.\r
  18  * * ============LICENSE_END====================================================\r
  19  * *\r
  20  * * ECOMP is a trademark and service mark of AT&T Intellectual Property.\r
  21  * *\r
  22  ******************************************************************************/\r
  23 \r
  24 \r
  25 package org.onap.dmaap.datarouter.provisioning;\r
  26 \r
  27 import java.io.IOException;\r
  28 import java.io.InvalidObjectException;\r
  29 import java.net.HttpURLConnection;\r
  30 import java.net.URL;\r
  31 import java.util.List;\r
  32 import java.util.Vector;\r
  33 \r
  34 import javax.servlet.http.HttpServletRequest;\r
  35 import javax.servlet.http.HttpServletResponse;\r
  36 \r
  37 import org.json.JSONException;\r
  38 import org.json.JSONObject;\r
  39 import org.onap.dmaap.datarouter.authz.AuthorizationResponse;\r
  40 import org.onap.dmaap.datarouter.provisioning.beans.EventLogRecord;\r
  41 import org.onap.dmaap.datarouter.provisioning.beans.Subscription;\r
  42 import org.onap.dmaap.datarouter.provisioning.eelf.EelfMsgs;\r
  43 \r
  44 import com.att.eelf.configuration.EELFLogger;\r
  45 import com.att.eelf.configuration.EELFManager;\r
  46 \r
  47 import static org.onap.dmaap.datarouter.provisioning.utils.HttpServletUtils.sendResponseError;\r
  48 \r
  49 /**\r
  50  * This servlet handles provisioning for the &lt;subscriptionURL&gt; which is generated by the provisioning server to\r
  51  * handle the inspection, modification, and deletion of a particular subscription to a feed. It supports DELETE to\r
  52  * delete a subscription, GET to retrieve information about the subscription, and PUT to modify the subscription.  In DR\r
  53  * 3.0, POST is also supported in order to reset the subscription timers for individual subscriptions.\r
  54  *\r
  55  * @author Robert Eby\r
  56  * @version $Id$\r
  57  */\r
  58 @SuppressWarnings("serial")\r
  59 public class SubscriptionServlet extends ProxyServlet {\r
  60 \r
  61     private static final String SUBCNTRL_CONTENT_TYPE = "application/vnd.dmaap-dr.subscription-control";\r
  62     //Adding EELF Logger Rally:US664892\r
  63     private static EELFLogger eelfLogger = EELFManager.getInstance()\r
  64         .getLogger(SubscriptionServlet.class);\r
  65 \r
  66 \r
  67 \r
  68 \r
  69 \r
  70     /**\r
  71      * DELETE on the &lt;subscriptionUrl&gt; -- delete a subscription. See the <i>Deleting a Subscription</i> section in\r
  72      * the <b>Provisioning API</b> document for details on how this method should be invoked.\r
  73      */\r
  74     @Override\r
  75     public void doDelete(HttpServletRequest req, HttpServletResponse resp) {\r
  76         setIpFqdnRequestIDandInvocationIDForEelf("doDelete", req);\r
  77         eelfLogger.info(EelfMsgs.ENTRY);\r
  78         try {\r
  79             eelfLogger.info(EelfMsgs.MESSAGE_WITH_BEHALF_AND_SUBID, req.getHeader(BEHALF_HEADER), getIdFromPath(req) + "");\r
  80             EventLogRecord elr = new EventLogRecord(req);\r
  81             String message = isAuthorizedForProvisioning(req);\r
  82             if (message != null) {\r
  83                 elr.setMessage(message);\r
  84                 elr.setResult(HttpServletResponse.SC_FORBIDDEN);\r
  85                 eventlogger.error(elr.toString());\r
  86                 sendResponseError(resp, HttpServletResponse.SC_FORBIDDEN, message, eventlogger);\r
  87                 return;\r
  88             }\r
  89             if (isProxyServer()) {\r
  90                 super.doDelete(req, resp);\r
  91                 return;\r
  92             }\r
  93             String bhdr = req.getHeader(BEHALF_HEADER);\r
  94             if (bhdr == null) {\r
  95                 message = MISSING_ON_BEHALF;\r
  96                 elr.setMessage(message);\r
  97                 elr.setResult(HttpServletResponse.SC_BAD_REQUEST);\r
  98                 eventlogger.error(elr.toString());\r
  99                 sendResponseError(resp, HttpServletResponse.SC_BAD_REQUEST, message, eventlogger);\r
 100                 return;\r
 101             }\r
 102             int subid = getIdFromPath(req);\r
 103             if (subid < 0) {\r
 104                 message = BAD_SUB;\r
 105                 elr.setMessage(message);\r
 106                 elr.setResult(HttpServletResponse.SC_BAD_REQUEST);\r
 107                 eventlogger.error(elr.toString());\r
 108                 sendResponseError(resp, HttpServletResponse.SC_BAD_REQUEST, message, eventlogger);\r
 109                 return;\r
 110             }\r
 111             Subscription sub = Subscription.getSubscriptionById(subid);\r
 112             if (sub == null) {\r
 113                 message = BAD_SUB;\r
 114                 elr.setMessage(message);\r
 115                 elr.setResult(HttpServletResponse.SC_NOT_FOUND);\r
 116                 eventlogger.error(elr.toString());\r
 117                 sendResponseError(resp, HttpServletResponse.SC_NOT_FOUND, message, eventlogger);\r
 118                 return;\r
 119             }\r
 120             /*\r
 121              * START - AAF changes\r
 122              * TDP EPIC US# 307413\r
 123              * CADI code - check on permissions based on Legacy/AAF users to allow to delete/remove subscription\r
 124              */\r
 125             String aafInstance = sub.getAafInstance();\r
 126             if (aafInstance == null || "".equals(aafInstance) || "legacy".equalsIgnoreCase(aafInstance)) {\r
 127                 AuthorizationResponse aresp = authz.decide(req);\r
 128                 if (!aresp.isAuthorized()) {\r
 129                     message = POLICY_ENGINE;\r
 130                     elr.setMessage(message);\r
 131                     elr.setResult(HttpServletResponse.SC_FORBIDDEN);\r
 132                     eventlogger.error(elr.toString());\r
 133                     sendResponseError(resp, HttpServletResponse.SC_FORBIDDEN, message, eventlogger);\r
 134                     return;\r
 135                 }\r
 136             } else {\r
 137                 String permission = getSubscriberPermission(aafInstance, BaseServlet.DELETE_PERMISSION);\r
 138                 eventlogger.info("SubscriptionServlet.doDelete().. Permission String - " + permission);\r
 139                 if (!req.isUserInRole(permission)) {\r
 140                     message = "AAF disallows access to permission - " + permission;\r
 141                     elr.setMessage(message);\r
 142                     elr.setResult(HttpServletResponse.SC_FORBIDDEN);\r
 143                     eventlogger.error(elr.toString());\r
 144                     sendResponseError(resp, HttpServletResponse.SC_FORBIDDEN, message, eventlogger);\r
 145                     return;\r
 146                 }\r
 147             }\r
 148             /*\r
 149              * END - AAF changes\r
 150              */\r
 151             // Delete Subscription\r
 152             if (doDelete(sub)) {\r
 153                 activeSubs--;\r
 154                 // send response\r
 155                 elr.setResult(HttpServletResponse.SC_NO_CONTENT);\r
 156                 eventlogger.info(elr.toString());\r
 157                 resp.setStatus(HttpServletResponse.SC_NO_CONTENT);\r
 158                 provisioningDataChanged();\r
 159             } else {\r
 160                 // Something went wrong with the DELETE\r
 161                 elr.setResult(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);\r
 162                 eventlogger.error(elr.toString());\r
 163                 sendResponseError(resp, HttpServletResponse.SC_INTERNAL_SERVER_ERROR, DB_PROBLEM_MSG, intlogger);\r
 164             }\r
 165         } finally {\r
 166             eelfLogger.info(EelfMsgs.EXIT);\r
 167         }\r
 168     }\r
 169 \r
 170     /**\r
 171      * GET on the &lt;subscriptionUrl&gt; -- get information about a subscription. See the <i>Retreiving Information\r
 172      * about a Subscription</i> section in the <b>Provisioning API</b> document for details on how this method should be\r
 173      * invoked.\r
 174      */\r
 175     @Override\r
 176     public void doGet(HttpServletRequest req, HttpServletResponse resp) {\r
 177         setIpFqdnRequestIDandInvocationIDForEelf("doGet", req);\r
 178         eelfLogger.info(EelfMsgs.ENTRY);\r
 179         try {\r
 180             eelfLogger.info(EelfMsgs.MESSAGE_WITH_BEHALF_AND_SUBID, req.getHeader(BEHALF_HEADER), getIdFromPath(req) + "");\r
 181             EventLogRecord elr = new EventLogRecord(req);\r
 182             String message = isAuthorizedForProvisioning(req);\r
 183             if (message != null) {\r
 184                 elr.setMessage(message);\r
 185                 elr.setResult(HttpServletResponse.SC_FORBIDDEN);\r
 186                 eventlogger.error(elr.toString());\r
 187                 sendResponseError(resp, HttpServletResponse.SC_FORBIDDEN, message, eventlogger);\r
 188                 return;\r
 189             }\r
 190             if (isProxyServer()) {\r
 191                 super.doGet(req, resp);\r
 192                 return;\r
 193             }\r
 194             String bhdr = req.getHeader(BEHALF_HEADER);\r
 195             if (bhdr == null) {\r
 196                 message = MISSING_ON_BEHALF;\r
 197                 elr.setMessage(message);\r
 198                 elr.setResult(HttpServletResponse.SC_BAD_REQUEST);\r
 199                 eventlogger.error(elr.toString());\r
 200                 sendResponseError(resp, HttpServletResponse.SC_BAD_REQUEST, message, eventlogger);\r
 201                 return;\r
 202             }\r
 203             int subid = getIdFromPath(req);\r
 204             if (subid < 0) {\r
 205                 message = BAD_SUB;\r
 206                 elr.setMessage(message);\r
 207                 elr.setResult(HttpServletResponse.SC_BAD_REQUEST);\r
 208                 eventlogger.error(elr.toString());\r
 209                 sendResponseError(resp, HttpServletResponse.SC_BAD_REQUEST, message, eventlogger);\r
 210                 return;\r
 211             }\r
 212             Subscription sub = Subscription.getSubscriptionById(subid);\r
 213             if (sub == null) {\r
 214                 message = BAD_SUB;\r
 215                 elr.setMessage(message);\r
 216                 elr.setResult(HttpServletResponse.SC_NOT_FOUND);\r
 217                 eventlogger.error(elr.toString());\r
 218                 sendResponseError(resp, HttpServletResponse.SC_NOT_FOUND, message, eventlogger);\r
 219                 return;\r
 220             }\r
 221             // Check with the Authorizer\r
 222             AuthorizationResponse aresp = authz.decide(req);\r
 223             if (!aresp.isAuthorized()) {\r
 224                 message = POLICY_ENGINE;\r
 225                 elr.setMessage(message);\r
 226                 elr.setResult(HttpServletResponse.SC_FORBIDDEN);\r
 227                 eventlogger.error(elr.toString());\r
 228                 sendResponseError(resp, HttpServletResponse.SC_FORBIDDEN, message, eventlogger);\r
 229                 return;\r
 230             }\r
 231 \r
 232             // send response\r
 233             elr.setResult(HttpServletResponse.SC_OK);\r
 234             eventlogger.info(elr.toString());\r
 235             resp.setStatus(HttpServletResponse.SC_OK);\r
 236             resp.setContentType(SUBFULL_CONTENT_TYPE);\r
 237             try {\r
 238                 resp.getOutputStream().print(sub.asJSONObject(true).toString());\r
 239             } catch (IOException ioe) {\r
 240                 eventlogger.error("PROV0191 SubscriptionServlet.doGet: " + ioe.getMessage(), ioe);\r
 241             }\r
 242         } finally {\r
 243             eelfLogger.info(EelfMsgs.EXIT);\r
 244         }\r
 245     }\r
 246 \r
 247     /**\r
 248      * PUT on the &lt;subscriptionUrl&gt; -- modify a subscription. See the <i>Modifying a Subscription</i> section in\r
 249      * the <b>Provisioning API</b> document for details on how this method should be invoked.\r
 250      */\r
 251     @Override\r
 252     public void doPut(HttpServletRequest req, HttpServletResponse resp) {\r
 253         setIpFqdnRequestIDandInvocationIDForEelf("doPut", req);\r
 254         eelfLogger.info(EelfMsgs.ENTRY);\r
 255         try {\r
 256             eelfLogger.info(EelfMsgs.MESSAGE_WITH_BEHALF_AND_SUBID, req.getHeader(BEHALF_HEADER), getIdFromPath(req) + "");\r
 257             EventLogRecord elr = new EventLogRecord(req);\r
 258             String message = isAuthorizedForProvisioning(req);\r
 259             if (message != null) {\r
 260                 elr.setMessage(message);\r
 261                 elr.setResult(HttpServletResponse.SC_FORBIDDEN);\r
 262                 eventlogger.error(elr.toString());\r
 263                 sendResponseError(resp, HttpServletResponse.SC_FORBIDDEN, message, eventlogger);\r
 264                 return;\r
 265             }\r
 266             if (isProxyServer()) {\r
 267                 super.doPut(req, resp);\r
 268                 return;\r
 269             }\r
 270             String bhdr = req.getHeader(BEHALF_HEADER);\r
 271             if (bhdr == null) {\r
 272                 message = MISSING_ON_BEHALF;\r
 273                 elr.setMessage(message);\r
 274                 elr.setResult(HttpServletResponse.SC_BAD_REQUEST);\r
 275                 eventlogger.error(elr.toString());\r
 276                 sendResponseError(resp, HttpServletResponse.SC_BAD_REQUEST, message, eventlogger);\r
 277                 return;\r
 278             }\r
 279             int subid = getIdFromPath(req);\r
 280             if (subid < 0) {\r
 281                 message = BAD_SUB;\r
 282                 elr.setMessage(message);\r
 283                 elr.setResult(HttpServletResponse.SC_BAD_REQUEST);\r
 284                 eventlogger.error(elr.toString());\r
 285                 sendResponseError(resp, HttpServletResponse.SC_BAD_REQUEST, message, eventlogger);\r
 286                 return;\r
 287             }\r
 288             Subscription oldsub = Subscription.getSubscriptionById(subid);\r
 289             if (oldsub == null) {\r
 290                 message = BAD_SUB;\r
 291                 elr.setMessage(message);\r
 292                 elr.setResult(HttpServletResponse.SC_NOT_FOUND);\r
 293                 eventlogger.error(elr.toString());\r
 294                 sendResponseError(resp, HttpServletResponse.SC_NOT_FOUND, message, eventlogger);\r
 295                 return;\r
 296             }\r
 297             // check content type is SUB_CONTENT_TYPE, version 1.0\r
 298             ContentHeader ch = getContentHeader(req);\r
 299             String ver = ch.getAttribute("version");\r
 300             if (!ch.getType().equals(SUB_BASECONTENT_TYPE) || !("1.0".equals(ver) || "2.0".equals(ver))) {\r
 301                 message = "Incorrect content-type";\r
 302                 elr.setMessage(message);\r
 303                 elr.setResult(HttpServletResponse.SC_UNSUPPORTED_MEDIA_TYPE);\r
 304                 eventlogger.error(elr.toString());\r
 305                 sendResponseError(resp, HttpServletResponse.SC_UNSUPPORTED_MEDIA_TYPE, message, eventlogger);\r
 306                 return;\r
 307             }\r
 308             JSONObject jo = getJSONfromInput(req);\r
 309             if (jo == null) {\r
 310                 message = BAD_JSON;\r
 311                 elr.setMessage(message);\r
 312                 elr.setResult(HttpServletResponse.SC_BAD_REQUEST);\r
 313                 eventlogger.error(elr.toString());\r
 314                 sendResponseError(resp, HttpServletResponse.SC_BAD_REQUEST, message, eventlogger);\r
 315                 return;\r
 316             }\r
 317             if (intlogger.isDebugEnabled()) {\r
 318                 intlogger.debug(jo.toString());\r
 319             }\r
 320             Subscription sub = null;\r
 321             try {\r
 322                 sub = new Subscription(jo);\r
 323             } catch (InvalidObjectException e) {\r
 324                 message = e.getMessage();\r
 325                 elr.setMessage(message);\r
 326                 elr.setResult(HttpServletResponse.SC_BAD_REQUEST);\r
 327                 eventlogger.error(elr.toString(), e);\r
 328                 sendResponseError(resp, HttpServletResponse.SC_BAD_REQUEST, message, eventlogger);\r
 329                 return;\r
 330             }\r
 331 \r
 332             /*\r
 333              * START - AAF changes\r
 334              * TDP EPIC US# 307413\r
 335              * CADI code - check on permissions based on Legacy/AAF users to allow to delete/remove subscription\r
 336              */\r
 337             String aafInstance = sub.getAafInstance();\r
 338             if (aafInstance == null || "".equals(aafInstance) || "legacy".equalsIgnoreCase(aafInstance)) {\r
 339                 AuthorizationResponse aresp = authz.decide(req);\r
 340                 if (!aresp.isAuthorized()) {\r
 341                     message = POLICY_ENGINE;\r
 342                     elr.setMessage(message);\r
 343                     elr.setResult(HttpServletResponse.SC_FORBIDDEN);\r
 344                     eventlogger.error(elr.toString());\r
 345                     sendResponseError(resp, HttpServletResponse.SC_FORBIDDEN, message, eventlogger);\r
 346                     return;\r
 347                 }\r
 348             } else {\r
 349                 String permission = getSubscriberPermission(aafInstance, BaseServlet.EDIT_PERMISSION);\r
 350                 eventlogger.info("SubscriptionServlet.doDelete().. Permission String - " + permission);\r
 351                 if (!req.isUserInRole(permission)) {\r
 352                     message = "AAF disallows access to permission - " + permission;\r
 353                     elr.setMessage(message);\r
 354                     elr.setResult(HttpServletResponse.SC_FORBIDDEN);\r
 355                     eventlogger.error(elr.toString());\r
 356                     sendResponseError(resp, HttpServletResponse.SC_FORBIDDEN, message, eventlogger);\r
 357                     return;\r
 358                 }\r
 359             }\r
 360             /*\r
 361              * END - AAF changes\r
 362              */\r
 363             sub.setSubid(oldsub.getSubid());\r
 364             sub.setFeedid(oldsub.getFeedid());\r
 365             sub.setSubscriber(bhdr);    // set from X-DMAAP-DR-ON-BEHALF-OF header\r
 366 \r
 367             String subjectgroup = (req.getHeader("X-DMAAP-DR-ON-BEHALF-OF-GROUP")); //Adding for group feature:Rally US708115\r
 368             if (!oldsub.getSubscriber().equals(sub.getSubscriber()) && subjectgroup == null) {\r
 369                 message = "This subscriber must be modified by the same subscriber that created it.";\r
 370                 elr.setMessage(message);\r
 371                 elr.setResult(HttpServletResponse.SC_BAD_REQUEST);\r
 372                 eventlogger.error(elr.toString());\r
 373                 sendResponseError(resp, HttpServletResponse.SC_BAD_REQUEST, message, eventlogger);\r
 374                 return;\r
 375             }\r
 376 \r
 377             // Update SUBSCRIPTIONS table entries\r
 378             if (doUpdate(sub)) {\r
 379                 // send response\r
 380                 elr.setResult(HttpServletResponse.SC_OK);\r
 381                 eventlogger.info(elr.toString());\r
 382                 resp.setStatus(HttpServletResponse.SC_OK);\r
 383                 resp.setContentType(SUBFULL_CONTENT_TYPE);\r
 384                 try {\r
 385                     resp.getOutputStream().print(sub.asLimitedJSONObject().toString());\r
 386                 } catch (IOException ioe) {\r
 387                     eventlogger.error("PROV0192 SubscriptionServlet.doPut: " + ioe.getMessage(), ioe);\r
 388                 }\r
 389 \r
 390                 /**Change Owner ship of Subscriber     Adding for group feature:Rally US708115*/\r
 391                 if (jo.has("changeowner") && subjectgroup != null) {\r
 392                     try {\r
 393                         Boolean changeowner = (Boolean) jo.get("changeowner");\r
 394                         if (changeowner != null && changeowner.equals(true)) {\r
 395                             sub.setSubscriber(req.getHeader(BEHALF_HEADER));\r
 396                             sub.changeOwnerShip();\r
 397                         }\r
 398                     } catch (JSONException je) {\r
 399                         eventlogger.error("PROV0193 SubscriptionServlet.doPut: " + je.getMessage(), je);\r
 400                     }\r
 401                 }\r
 402                 /***End of change ownership*/\r
 403 \r
 404                 provisioningDataChanged();\r
 405             } else {\r
 406                 // Something went wrong with the UPDATE\r
 407                 elr.setResult(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);\r
 408                 eventlogger.error(elr.toString());\r
 409                 sendResponseError(resp, HttpServletResponse.SC_INTERNAL_SERVER_ERROR, DB_PROBLEM_MSG, intlogger);\r
 410             }\r
 411         } finally {\r
 412             eelfLogger.info(EelfMsgs.EXIT);\r
 413         }\r
 414     }\r
 415 \r
 416     /**\r
 417      * POST on the &lt;subscriptionUrl&gt; -- control a subscription. See the <i>Resetting a Subscription's Retry\r
 418      * Schedule</i> section in the <b>Provisioning API</b> document for details on how this method should be invoked.\r
 419      */\r
 420     @Override\r
 421     public void doPost(HttpServletRequest req, HttpServletResponse resp) {\r
 422 \r
 423         setIpFqdnRequestIDandInvocationIDForEelf("doPost", req);\r
 424         eelfLogger.info(EelfMsgs.ENTRY);\r
 425         try {\r
 426             eelfLogger.info(EelfMsgs.MESSAGE_WITH_BEHALF, req.getHeader(BEHALF_HEADER));\r
 427             EventLogRecord elr = new EventLogRecord(req);\r
 428             String message = isAuthorizedForProvisioning(req);\r
 429             if (message != null) {\r
 430                 elr.setMessage(message);\r
 431                 elr.setResult(HttpServletResponse.SC_FORBIDDEN);\r
 432                 eventlogger.error(elr.toString());\r
 433                 sendResponseError(resp, HttpServletResponse.SC_FORBIDDEN, message, eventlogger);\r
 434                 return;\r
 435             }\r
 436             if (isProxyServer()) {\r
 437                 super.doPost(req, resp);\r
 438                 return;\r
 439             }\r
 440             String bhdr = req.getHeader(BEHALF_HEADER);\r
 441             if (bhdr == null) {\r
 442                 message = MISSING_ON_BEHALF;\r
 443                 elr.setMessage(message);\r
 444                 elr.setResult(HttpServletResponse.SC_BAD_REQUEST);\r
 445                 eventlogger.error(elr.toString());\r
 446                 sendResponseError(resp, HttpServletResponse.SC_BAD_REQUEST, message, eventlogger);\r
 447                 return;\r
 448             }\r
 449             final int subid = getIdFromPath(req);\r
 450             if (subid < 0 || Subscription.getSubscriptionById(subid) == null) {\r
 451                 message = BAD_SUB;\r
 452                 elr.setMessage(message);\r
 453                 elr.setResult(HttpServletResponse.SC_BAD_REQUEST);\r
 454                 eventlogger.error(elr.toString());\r
 455                 sendResponseError(resp, HttpServletResponse.SC_BAD_REQUEST, message, eventlogger);\r
 456                 return;\r
 457             }\r
 458             // check content type is SUBCNTRL_CONTENT_TYPE, version 1.0\r
 459             ContentHeader ch = getContentHeader(req);\r
 460             String ver = ch.getAttribute("version");\r
 461             if (!ch.getType().equals(SUBCNTRL_CONTENT_TYPE) || !"1.0".equals(ver)) {\r
 462                 message = "Incorrect content-type";\r
 463                 elr.setMessage(message);\r
 464                 elr.setResult(HttpServletResponse.SC_UNSUPPORTED_MEDIA_TYPE);\r
 465                 eventlogger.error(elr.toString());\r
 466                 sendResponseError(resp, HttpServletResponse.SC_UNSUPPORTED_MEDIA_TYPE, message, eventlogger);\r
 467                 return;\r
 468             }\r
 469             // Check with the Authorizer\r
 470             AuthorizationResponse aresp = authz.decide(req);\r
 471             if (!aresp.isAuthorized()) {\r
 472                 message = POLICY_ENGINE;\r
 473                 elr.setMessage(message);\r
 474                 elr.setResult(HttpServletResponse.SC_FORBIDDEN);\r
 475                 eventlogger.error(elr.toString());\r
 476                 sendResponseError(resp, HttpServletResponse.SC_FORBIDDEN, message, eventlogger);\r
 477                 return;\r
 478             }\r
 479             JSONObject jo = getJSONfromInput(req);\r
 480             if (jo == null) {\r
 481                 message = BAD_JSON;\r
 482                 elr.setMessage(message);\r
 483                 elr.setResult(HttpServletResponse.SC_BAD_REQUEST);\r
 484                 eventlogger.error(elr.toString());\r
 485                 sendResponseError(resp, HttpServletResponse.SC_BAD_REQUEST, message, eventlogger);\r
 486                 return;\r
 487             }\r
 488             try {\r
 489                 // Only the active POD sends notifications\r
 490                 boolean active = SynchronizerTask.getSynchronizer().isActive();\r
 491                 boolean b = jo.getBoolean("failed");\r
 492                 if (active && !b) {\r
 493                     // Notify all nodes to reset the subscription\r
 494                     SubscriberNotifyThread t = new SubscriberNotifyThread();\r
 495                     t.resetSubscription(subid);\r
 496                     t.start();\r
 497                 }\r
 498                 // send response\r
 499                 elr.setResult(HttpServletResponse.SC_ACCEPTED);\r
 500                 eventlogger.info(elr.toString());\r
 501                 resp.setStatus(HttpServletResponse.SC_ACCEPTED);\r
 502             } catch (JSONException e) {\r
 503                 message = BAD_JSON;\r
 504                 elr.setMessage(message);\r
 505                 elr.setResult(HttpServletResponse.SC_BAD_REQUEST);\r
 506                 eventlogger.error(elr.toString(), e);\r
 507                 sendResponseError(resp, HttpServletResponse.SC_BAD_REQUEST, message, eventlogger);\r
 508             }\r
 509         } finally {\r
 510             eelfLogger.info(EelfMsgs.EXIT);\r
 511         }\r
 512     }\r
 513 \r
 514     /**\r
 515      * A Thread class used to serially send reset notifications to all nodes in the DR network, when a POST is received\r
 516      * for a subscription.\r
 517      */\r
 518     public class SubscriberNotifyThread extends Thread {\r
 519 \r
 520         public static final String URL_TEMPLATE = "http://%s/internal/resetSubscription/%d";\r
 521         private List<String> urls = new Vector<>();\r
 522 \r
 523         public SubscriberNotifyThread() {\r
 524             setName("SubscriberNotifyThread");\r
 525         }\r
 526 \r
 527         public void resetSubscription(int subid) {\r
 528             for (String nodename : BaseServlet.getNodes()) {\r
 529                 String u = String.format(URL_TEMPLATE, nodename, subid);\r
 530                 urls.add(u);\r
 531             }\r
 532         }\r
 533 \r
 534         @Override\r
 535         public void run() {\r
 536 \r
 537             try {\r
 538                 while (!urls.isEmpty()) {\r
 539                     String u = urls.remove(0);\r
 540                     try {\r
 541                         URL url = new URL(u);\r
 542                         HttpURLConnection conn = (HttpURLConnection) url.openConnection();\r
 543                         conn.connect();\r
 544                         conn.getContentLength();    // Force the GET through\r
 545                         conn.disconnect();\r
 546                     } catch (IOException e) {\r
 547                         intlogger.info("PROV0194 Error accessing URL: " + u + ": " + e.getMessage(), e);\r
 548                     }\r
 549                 }\r
 550             } catch (Exception e) {\r
 551                 intlogger.warn("PROV0195 Caught exception in SubscriberNotifyThread: " + e.getMessage(), e);\r
 552             }\r
 553         }\r
 554     }\r
 555 }\r