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 static org.onap.dmaap.datarouter.provisioning.utils.HttpServletUtils.sendResponseError;\r
  28 \r
  29 import com.att.eelf.configuration.EELFLogger;\r
  30 import com.att.eelf.configuration.EELFManager;\r
  31 import java.io.IOException;\r
  32 import java.io.InvalidObjectException;\r
  33 import java.net.HttpURLConnection;\r
  34 import java.net.URL;\r
  35 import java.util.ArrayList;\r
  36 import java.util.List;\r
  37 import javax.servlet.http.HttpServletRequest;\r
  38 import javax.servlet.http.HttpServletResponse;\r
  39 import org.json.JSONException;\r
  40 import org.json.JSONObject;\r
  41 import org.onap.dmaap.datarouter.authz.AuthorizationResponse;\r
  42 import org.onap.dmaap.datarouter.provisioning.beans.EventLogRecord;\r
  43 import org.onap.dmaap.datarouter.provisioning.beans.Subscription;\r
  44 import org.onap.dmaap.datarouter.provisioning.eelf.EelfMsgs;\r
  45 \r
  46 /**\r
  47  * This servlet handles provisioning for the &lt;subscriptionURL&gt; which is generated by the provisioning server to\r
  48  * handle the inspection, modification, and deletion of a particular subscription to a feed. It supports DELETE to\r
  49  * delete a subscription, GET to retrieve information about the subscription, and PUT to modify the subscription.  In DR\r
  50  * 3.0, POST is also supported in order to reset the subscription timers for individual subscriptions.\r
  51  *\r
  52  * @author Robert Eby\r
  53  * @version $Id$\r
  54  */\r
  55 @SuppressWarnings("serial")\r
  56 public class SubscriptionServlet extends ProxyServlet {\r
  57 \r
  58     private static final String SUBCNTRL_CONTENT_TYPE = "application/vnd.dmaap-dr.subscription-control";\r
  59     //Adding EELF Logger Rally:US664892\r
  60     private static EELFLogger eelfLogger = EELFManager.getInstance()\r
  61         .getLogger(SubscriptionServlet.class);\r
  62 \r
  63 \r
  64 \r
  65 \r
  66 \r
  67     /**\r
  68      * DELETE on the &lt;subscriptionUrl&gt; -- delete a subscription. See the <i>Deleting a Subscription</i> section in\r
  69      * the <b>Provisioning API</b> document for details on how this method should be invoked.\r
  70      */\r
  71     @Override\r
  72     public void doDelete(HttpServletRequest req, HttpServletResponse resp) {\r
  73         setIpFqdnRequestIDandInvocationIDForEelf("doDelete", req);\r
  74         eelfLogger.info(EelfMsgs.ENTRY);\r
  75         try {\r
  76             eelfLogger.info(EelfMsgs.MESSAGE_WITH_BEHALF_AND_SUBID,\r
  77                     req.getHeader(BEHALF_HEADER), getIdFromPath(req) + "");\r
  78             EventLogRecord elr = new EventLogRecord(req);\r
  79             String message = isAuthorizedForProvisioning(req);\r
  80             if (message != null) {\r
  81                 elr.setMessage(message);\r
  82                 elr.setResult(HttpServletResponse.SC_FORBIDDEN);\r
  83                 eventlogger.error(elr.toString());\r
  84                 sendResponseError(resp, HttpServletResponse.SC_FORBIDDEN, message, eventlogger);\r
  85                 return;\r
  86             }\r
  87             if (isProxyServer()) {\r
  88                 super.doDelete(req, resp);\r
  89                 return;\r
  90             }\r
  91             String bhdr = req.getHeader(BEHALF_HEADER);\r
  92             if (bhdr == null) {\r
  93                 message = MISSING_ON_BEHALF;\r
  94                 elr.setMessage(message);\r
  95                 elr.setResult(HttpServletResponse.SC_BAD_REQUEST);\r
  96                 eventlogger.error(elr.toString());\r
  97                 sendResponseError(resp, HttpServletResponse.SC_BAD_REQUEST, message, eventlogger);\r
  98                 return;\r
  99             }\r
 100             int subid = getIdFromPath(req);\r
 101             if (subid < 0) {\r
 102                 message = BAD_SUB;\r
 103                 elr.setMessage(message);\r
 104                 elr.setResult(HttpServletResponse.SC_BAD_REQUEST);\r
 105                 eventlogger.error(elr.toString());\r
 106                 sendResponseError(resp, HttpServletResponse.SC_BAD_REQUEST, message, eventlogger);\r
 107                 return;\r
 108             }\r
 109             Subscription sub = Subscription.getSubscriptionById(subid);\r
 110             if (sub == null) {\r
 111                 message = BAD_SUB;\r
 112                 elr.setMessage(message);\r
 113                 elr.setResult(HttpServletResponse.SC_NOT_FOUND);\r
 114                 eventlogger.error(elr.toString());\r
 115                 sendResponseError(resp, HttpServletResponse.SC_NOT_FOUND, message, eventlogger);\r
 116                 return;\r
 117             }\r
 118             /*\r
 119              * START - AAF changes\r
 120              * TDP EPIC US# 307413\r
 121              * CADI code - check on permissions based on Legacy/AAF users to allow to delete/remove subscription\r
 122              */\r
 123             String aafInstance = sub.getAafInstance();\r
 124             if (aafInstance == null || "".equals(aafInstance) || "legacy".equalsIgnoreCase(aafInstance)) {\r
 125                 AuthorizationResponse aresp = authz.decide(req);\r
 126                 if (!aresp.isAuthorized()) {\r
 127                     message = POLICY_ENGINE;\r
 128                     elr.setMessage(message);\r
 129                     elr.setResult(HttpServletResponse.SC_FORBIDDEN);\r
 130                     eventlogger.error(elr.toString());\r
 131                     sendResponseError(resp, HttpServletResponse.SC_FORBIDDEN, message, eventlogger);\r
 132                     return;\r
 133                 }\r
 134             } else {\r
 135                 String permission = getSubscriberPermission(aafInstance, BaseServlet.DELETE_PERMISSION);\r
 136                 eventlogger.info("SubscriptionServlet.doDelete().. Permission String - " + permission);\r
 137                 if (!req.isUserInRole(permission)) {\r
 138                     message = "AAF disallows access to permission - " + permission;\r
 139                     elr.setMessage(message);\r
 140                     elr.setResult(HttpServletResponse.SC_FORBIDDEN);\r
 141                     eventlogger.error(elr.toString());\r
 142                     sendResponseError(resp, HttpServletResponse.SC_FORBIDDEN, message, eventlogger);\r
 143                     return;\r
 144                 }\r
 145             }\r
 146             /*\r
 147              * END - AAF changes\r
 148              */\r
 149             // Delete Subscription\r
 150             if (doDelete(sub)) {\r
 151                 activeSubs--;\r
 152                 // send response\r
 153                 elr.setResult(HttpServletResponse.SC_NO_CONTENT);\r
 154                 eventlogger.info(elr.toString());\r
 155                 resp.setStatus(HttpServletResponse.SC_NO_CONTENT);\r
 156                 provisioningDataChanged();\r
 157             } else {\r
 158                 // Something went wrong with the DELETE\r
 159                 elr.setResult(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);\r
 160                 eventlogger.error(elr.toString());\r
 161                 sendResponseError(resp, HttpServletResponse.SC_INTERNAL_SERVER_ERROR, DB_PROBLEM_MSG, intlogger);\r
 162             }\r
 163         } finally {\r
 164             eelfLogger.info(EelfMsgs.EXIT);\r
 165         }\r
 166     }\r
 167 \r
 168     /**\r
 169      * GET on the &lt;subscriptionUrl&gt; -- get information about a subscription. See the <i>Retreiving Information\r
 170      * about a Subscription</i> section in the <b>Provisioning API</b> document for details on how this method should be\r
 171      * invoked.\r
 172      */\r
 173     @Override\r
 174     public void doGet(HttpServletRequest req, HttpServletResponse resp) {\r
 175         setIpFqdnRequestIDandInvocationIDForEelf("doGet", req);\r
 176         eelfLogger.info(EelfMsgs.ENTRY);\r
 177         try {\r
 178             eelfLogger.info(EelfMsgs.MESSAGE_WITH_BEHALF_AND_SUBID,\r
 179                     req.getHeader(BEHALF_HEADER), getIdFromPath(req) + "");\r
 180             EventLogRecord elr = new EventLogRecord(req);\r
 181             String message = isAuthorizedForProvisioning(req);\r
 182             if (message != null) {\r
 183                 elr.setMessage(message);\r
 184                 elr.setResult(HttpServletResponse.SC_FORBIDDEN);\r
 185                 eventlogger.error(elr.toString());\r
 186                 sendResponseError(resp, HttpServletResponse.SC_FORBIDDEN, message, eventlogger);\r
 187                 return;\r
 188             }\r
 189             if (isProxyServer()) {\r
 190                 super.doGet(req, resp);\r
 191                 return;\r
 192             }\r
 193             String bhdr = req.getHeader(BEHALF_HEADER);\r
 194             if (bhdr == null) {\r
 195                 message = MISSING_ON_BEHALF;\r
 196                 elr.setMessage(message);\r
 197                 elr.setResult(HttpServletResponse.SC_BAD_REQUEST);\r
 198                 eventlogger.error(elr.toString());\r
 199                 sendResponseError(resp, HttpServletResponse.SC_BAD_REQUEST, message, eventlogger);\r
 200                 return;\r
 201             }\r
 202             int subid = getIdFromPath(req);\r
 203             if (subid < 0) {\r
 204                 message = BAD_SUB;\r
 205                 elr.setMessage(message);\r
 206                 elr.setResult(HttpServletResponse.SC_BAD_REQUEST);\r
 207                 eventlogger.error(elr.toString());\r
 208                 sendResponseError(resp, HttpServletResponse.SC_BAD_REQUEST, message, eventlogger);\r
 209                 return;\r
 210             }\r
 211             Subscription sub = Subscription.getSubscriptionById(subid);\r
 212             if (sub == null) {\r
 213                 message = BAD_SUB;\r
 214                 elr.setMessage(message);\r
 215                 elr.setResult(HttpServletResponse.SC_NOT_FOUND);\r
 216                 eventlogger.error(elr.toString());\r
 217                 sendResponseError(resp, HttpServletResponse.SC_NOT_FOUND, message, eventlogger);\r
 218                 return;\r
 219             }\r
 220             // Check with the Authorizer\r
 221             AuthorizationResponse aresp = authz.decide(req);\r
 222             if (!aresp.isAuthorized()) {\r
 223                 message = POLICY_ENGINE;\r
 224                 elr.setMessage(message);\r
 225                 elr.setResult(HttpServletResponse.SC_FORBIDDEN);\r
 226                 eventlogger.error(elr.toString());\r
 227                 sendResponseError(resp, HttpServletResponse.SC_FORBIDDEN, message, eventlogger);\r
 228                 return;\r
 229             }\r
 230 \r
 231             // send response\r
 232             elr.setResult(HttpServletResponse.SC_OK);\r
 233             eventlogger.info(elr.toString());\r
 234             resp.setStatus(HttpServletResponse.SC_OK);\r
 235             resp.setContentType(SUBFULL_CONTENT_TYPE);\r
 236             try {\r
 237                 resp.getOutputStream().print(sub.asJSONObject(true).toString());\r
 238             } catch (IOException ioe) {\r
 239                 eventlogger.error("PROV0191 SubscriptionServlet.doGet: " + ioe.getMessage(), ioe);\r
 240             }\r
 241         } finally {\r
 242             eelfLogger.info(EelfMsgs.EXIT);\r
 243         }\r
 244     }\r
 245 \r
 246     /**\r
 247      * PUT on the &lt;subscriptionUrl&gt; -- modify a subscription. See the <i>Modifying a Subscription</i> section in\r
 248      * the <b>Provisioning API</b> document for details on how this method should be invoked.\r
 249      */\r
 250     @Override\r
 251     public void doPut(HttpServletRequest req, HttpServletResponse resp) {\r
 252         setIpFqdnRequestIDandInvocationIDForEelf("doPut", req);\r
 253         eelfLogger.info(EelfMsgs.ENTRY);\r
 254         try {\r
 255             eelfLogger.info(EelfMsgs.MESSAGE_WITH_BEHALF_AND_SUBID,\r
 256                     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             //Adding for group feature:Rally US708115\r
 367             String subjectgroup = (req.getHeader("X-DMAAP-DR-ON-BEHALF-OF-GROUP"));\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 bool = jo.getBoolean("failed");\r
 492                 if (active && !bool) {\r
 493                     // Notify all nodes to reset the subscription\r
 494                     SubscriberNotifyThread thread = new SubscriberNotifyThread();\r
 495                     thread.resetSubscription(subid);\r
 496                     thread.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 static class SubscriberNotifyThread extends Thread {\r
 519 \r
 520         static final String URL_TEMPLATE = "http://%s/internal/resetSubscription/%d";\r
 521         private List<String> urls = new ArrayList<>();\r
 522 \r
 523         SubscriberNotifyThread() {\r
 524             setName("SubscriberNotifyThread");\r
 525         }\r
 526 \r
 527         void resetSubscription(int subid) {\r
 528             for (String nodename : BaseServlet.getNodes()) {\r
 529                 String url = String.format(URL_TEMPLATE, nodename, subid);\r
 530                 urls.add(url);\r
 531             }\r
 532         }\r
 533 \r
 534         @Override\r
 535         public void run() {\r
 536             try {\r
 537                 while (!urls.isEmpty()) {\r
 538                     String url = urls.remove(0);\r
 539                     forceGetThrough(url);\r
 540                 }\r
 541             } catch (Exception e) {\r
 542                 intlogger.warn("PROV0195 Caught exception in SubscriberNotifyThread: " + e.getMessage(), e);\r
 543             }\r
 544         }\r
 545 \r
 546         private void forceGetThrough(String url) {\r
 547             try {\r
 548                 URL urlObj = new URL(url);\r
 549                 HttpURLConnection conn = (HttpURLConnection) urlObj.openConnection();\r
 550                 conn.connect();\r
 551                 conn.getContentLength();    // Force the GET through\r
 552                 conn.disconnect();\r
 553             } catch (IOException e) {\r
 554                 intlogger.info("PROV0194 Error accessing URL: " + url + ": " + e.getMessage(), e);\r
 555             }\r
 556         }\r
 557     }\r
 558 }\r