Update project structure to org.onap
[dmaap/datarouter.git] / datarouter-prov / src / main / java / org / onap / dmaap / datarouter / provisioning / FeedServlet.java
diff --git a/datarouter-prov/src/main/java/org/onap/dmaap/datarouter/provisioning/FeedServlet.java b/datarouter-prov/src/main/java/org/onap/dmaap/datarouter/provisioning/FeedServlet.java
new file mode 100644 (file)
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+/*******************************************************************************\r
+ * ============LICENSE_START==================================================\r
+ * * org.onap.dmaap\r
+ * * ===========================================================================\r
+ * * Copyright © 2017 AT&T Intellectual Property. All rights reserved.\r
+ * * ===========================================================================\r
+ * * Licensed under the Apache License, Version 2.0 (the "License");\r
+ * * you may not use this file except in compliance with the License.\r
+ * * You may obtain a copy of the License at\r
+ * * \r
+ *  *      http://www.apache.org/licenses/LICENSE-2.0\r
+ * * \r
+ *  * Unless required by applicable law or agreed to in writing, software\r
+ * * distributed under the License is distributed on an "AS IS" BASIS,\r
+ * * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\r
+ * * See the License for the specific language governing permissions and\r
+ * * limitations under the License.\r
+ * * ============LICENSE_END====================================================\r
+ * *\r
+ * * ECOMP is a trademark and service mark of AT&T Intellectual Property.\r
+ * *\r
+ ******************************************************************************/\r
+\r
+\r
+package org.onap.dmaap.datarouter.provisioning;\r
+\r
+import java.io.IOException;\r
+import java.io.InvalidObjectException;\r
+\r
+import javax.servlet.http.HttpServletRequest;\r
+import javax.servlet.http.HttpServletResponse;\r
+\r
+import org.json.JSONObject;\r
+import org.onap.dmaap.datarouter.authz.AuthorizationResponse;\r
+import org.onap.dmaap.datarouter.provisioning.beans.EventLogRecord;\r
+import org.onap.dmaap.datarouter.provisioning.beans.Feed;\r
+import org.onap.dmaap.datarouter.provisioning.eelf.EelfMsgs;\r
+\r
+import com.att.eelf.configuration.EELFLogger;\r
+import com.att.eelf.configuration.EELFManager;\r
+\r
+/**\r
+ * This servlet handles provisioning for the <feedURL> which is generated by the provisioning\r
+ * server to handle a particular feed. It supports DELETE to mark the feed as deleted,\r
+ * and GET to retrieve information about the feed, and PUT to modify the feed.\r
+ *\r
+ * @author Robert Eby\r
+ * @version $Id$\r
+ */\r
+@SuppressWarnings("serial")\r
+public class FeedServlet extends ProxyServlet {\r
+\r
+       //Adding EELF Logger Rally:US664892 \r
+    private static EELFLogger eelflogger = EELFManager.getInstance().getLogger("org.onap.dmaap.datarouter.provisioning.FeedServlet");\r
+\r
+       /**\r
+        * Delete the Feed at the address /feed/<feednumber>.\r
+        * See the <i>Deleting a Feed</i> section in the <b>Provisioning API</b>\r
+        * document for details on how this method should be invoked.\r
+        */\r
+       @Override\r
+       public void doDelete(HttpServletRequest req, HttpServletResponse resp) throws IOException {\r
+               setIpAndFqdnForEelf("doDelete");\r
+               eelflogger.info(EelfMsgs.MESSAGE_WITH_BEHALF_AND_FEEDID, req.getHeader(BEHALF_HEADER),getIdFromPath(req)+"");\r
+               EventLogRecord elr = new EventLogRecord(req);\r
+               String message = isAuthorizedForProvisioning(req);\r
+               if (message != null) {\r
+                       elr.setMessage(message);\r
+                       elr.setResult(HttpServletResponse.SC_FORBIDDEN);\r
+                       eventlogger.info(elr);\r
+                       resp.sendError(HttpServletResponse.SC_FORBIDDEN, message);\r
+                       return;\r
+               }\r
+               if (isProxyServer()) {\r
+                       super.doDelete(req, resp);\r
+                       return;\r
+               }\r
+               String bhdr = req.getHeader(BEHALF_HEADER);\r
+               if (bhdr == null) {\r
+                       message = "Missing "+BEHALF_HEADER+" header.";\r
+                       elr.setMessage(message);\r
+                       elr.setResult(HttpServletResponse.SC_BAD_REQUEST);\r
+                       eventlogger.info(elr);\r
+                       resp.sendError(HttpServletResponse.SC_BAD_REQUEST, message);\r
+                       return;\r
+               }\r
+               int feedid = getIdFromPath(req);\r
+               if (feedid < 0) {\r
+                       message = "Missing or bad feed number.";\r
+                       elr.setMessage(message);\r
+                       elr.setResult(HttpServletResponse.SC_BAD_REQUEST);\r
+                       eventlogger.info(elr);\r
+                       resp.sendError(HttpServletResponse.SC_BAD_REQUEST, message);\r
+                       return;\r
+               }\r
+               Feed feed = Feed.getFeedById(feedid);\r
+               if (feed == null || feed.isDeleted()) {\r
+                       message = "Missing or bad feed number.";\r
+                       elr.setMessage(message);\r
+                       elr.setResult(HttpServletResponse.SC_NOT_FOUND);\r
+                       eventlogger.info(elr);\r
+                       resp.sendError(HttpServletResponse.SC_NOT_FOUND, message);\r
+                       return;\r
+               }\r
+               // Check with the Authorizer\r
+               AuthorizationResponse aresp = authz.decide(req);\r
+               if (! aresp.isAuthorized()) {\r
+                       message = "Policy Engine disallows access.";\r
+                       elr.setMessage(message);\r
+                       elr.setResult(HttpServletResponse.SC_FORBIDDEN);\r
+                       eventlogger.info(elr);\r
+                       resp.sendError(HttpServletResponse.SC_FORBIDDEN, message);\r
+                       return;\r
+               }\r
+\r
+               // Delete FEED table entry (set DELETED flag)\r
+               feed.setDeleted(true);\r
+               if (doUpdate(feed)) {\r
+                       active_feeds--;\r
+                       // send response\r
+                       elr.setResult(HttpServletResponse.SC_NO_CONTENT);\r
+                       eventlogger.info(elr);\r
+                       resp.setStatus(HttpServletResponse.SC_NO_CONTENT);\r
+                       provisioningDataChanged();\r
+               } else {\r
+                       // Something went wrong with the UPDATE\r
+                       elr.setResult(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);\r
+                       eventlogger.info(elr);\r
+                       resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, DB_PROBLEM_MSG);\r
+               }\r
+       }\r
+       /**\r
+        * Get information on the feed at the address /feed/&lt;feednumber&gt;.\r
+        * See the <i>Retrieving Information about a Feed</i> section in the <b>Provisioning API</b>\r
+        * document for details on how this method should be invoked.\r
+        */\r
+       @Override\r
+       public void doGet(HttpServletRequest req, HttpServletResponse resp) throws IOException {\r
+               setIpAndFqdnForEelf("doGet");\r
+               eelflogger.info(EelfMsgs.MESSAGE_WITH_BEHALF_AND_FEEDID, req.getHeader(BEHALF_HEADER),getIdFromPath(req)+"");\r
+               EventLogRecord elr = new EventLogRecord(req);\r
+               String message = isAuthorizedForProvisioning(req);\r
+               if (message != null) {\r
+                       elr.setMessage(message);\r
+                       elr.setResult(HttpServletResponse.SC_FORBIDDEN);\r
+                       eventlogger.info(elr);\r
+                       resp.sendError(HttpServletResponse.SC_FORBIDDEN, message);\r
+                       return;\r
+               }\r
+               if (isProxyServer()) {\r
+                       super.doGet(req, resp);\r
+                       return;\r
+               }\r
+               String bhdr = req.getHeader(BEHALF_HEADER);\r
+               if (bhdr == null) {\r
+                       message = "Missing "+BEHALF_HEADER+" header.";\r
+                       elr.setMessage(message);\r
+                       elr.setResult(HttpServletResponse.SC_BAD_REQUEST);\r
+                       eventlogger.info(elr);\r
+                       resp.sendError(HttpServletResponse.SC_BAD_REQUEST, message);\r
+                       return;\r
+               }\r
+               int feedid = getIdFromPath(req);\r
+               if (feedid < 0) {\r
+                       message = "Missing or bad feed number.";\r
+                       elr.setMessage(message);\r
+                       elr.setResult(HttpServletResponse.SC_BAD_REQUEST);\r
+                       eventlogger.info(elr);\r
+                       resp.sendError(HttpServletResponse.SC_BAD_REQUEST, message);\r
+                       return;\r
+               }\r
+               Feed feed = Feed.getFeedById(feedid);\r
+               if (feed == null || feed.isDeleted()) {\r
+                       message = "Missing or bad feed number.";\r
+                       elr.setMessage(message);\r
+                       elr.setResult(HttpServletResponse.SC_NOT_FOUND);\r
+                       eventlogger.info(elr);\r
+                       resp.sendError(HttpServletResponse.SC_NOT_FOUND, message);\r
+                       return;\r
+               }\r
+               // Check with the Authorizer\r
+               AuthorizationResponse aresp = authz.decide(req);\r
+               if (! aresp.isAuthorized()) {\r
+                       message = "Policy Engine disallows access.";\r
+                       elr.setMessage(message);\r
+                       elr.setResult(HttpServletResponse.SC_FORBIDDEN);\r
+                       eventlogger.info(elr);\r
+                       resp.sendError(HttpServletResponse.SC_FORBIDDEN, message);\r
+                       return;\r
+               }\r
+\r
+               // send response\r
+               elr.setResult(HttpServletResponse.SC_OK);\r
+               eventlogger.info(elr);\r
+               resp.setStatus(HttpServletResponse.SC_OK);\r
+               resp.setContentType(FEEDFULL_CONTENT_TYPE);\r
+               resp.getOutputStream().print(feed.asJSONObject(true).toString());\r
+       }\r
+       /**\r
+        * PUT on the &lt;feedURL&gt; for a feed.\r
+        * See the <i>Modifying a Feed</i> section in the <b>Provisioning API</b>\r
+        * document for details on how this method should be invoked.\r
+        */\r
+       @Override\r
+       public void doPut(HttpServletRequest req, HttpServletResponse resp) throws IOException {\r
+               setIpAndFqdnForEelf("doPut");\r
+               eelflogger.info(EelfMsgs.MESSAGE_WITH_BEHALF_AND_FEEDID, req.getHeader(BEHALF_HEADER),getIdFromPath(req)+"");\r
+               EventLogRecord elr = new EventLogRecord(req);\r
+               String message = isAuthorizedForProvisioning(req);\r
+               if (message != null) {\r
+                       elr.setMessage(message);\r
+                       elr.setResult(HttpServletResponse.SC_FORBIDDEN);\r
+                       eventlogger.info(elr);\r
+                       resp.sendError(HttpServletResponse.SC_FORBIDDEN, message);\r
+                       return;\r
+               }\r
+               if (isProxyServer()) {\r
+                       super.doPut(req, resp);\r
+                       return;\r
+               }\r
+               String bhdr = req.getHeader(BEHALF_HEADER);\r
+               if (bhdr == null) {\r
+                       message = "Missing "+BEHALF_HEADER+" header.";\r
+                       elr.setMessage(message);\r
+                       elr.setResult(HttpServletResponse.SC_BAD_REQUEST);\r
+                       eventlogger.info(elr);\r
+                       resp.sendError(HttpServletResponse.SC_BAD_REQUEST, message);\r
+                       return;\r
+               }\r
+               int feedid = getIdFromPath(req);\r
+               if (feedid < 0) {\r
+                       message = "Missing or bad feed number.";\r
+                       elr.setMessage(message);\r
+                       elr.setResult(HttpServletResponse.SC_BAD_REQUEST);\r
+                       eventlogger.info(elr);\r
+                       resp.sendError(HttpServletResponse.SC_BAD_REQUEST, message);\r
+                       return;\r
+               }\r
+               Feed oldFeed = Feed.getFeedById(feedid);\r
+               if (oldFeed == null || oldFeed.isDeleted()) {\r
+                       message = "Missing or bad feed number.";\r
+                       elr.setMessage(message);\r
+                       elr.setResult(HttpServletResponse.SC_NOT_FOUND);\r
+                       eventlogger.info(elr);\r
+                       resp.sendError(HttpServletResponse.SC_NOT_FOUND, message);\r
+                       return;\r
+               }\r
+               // check content type is FEED_CONTENT_TYPE, version 1.0\r
+               ContentHeader ch = getContentHeader(req);\r
+               String ver = ch.getAttribute("version");\r
+               if (!ch.getType().equals(FEED_BASECONTENT_TYPE) || !(ver.equals("1.0") || ver.equals("2.0"))) {\r
+                       message = "Incorrect content-type";\r
+                       elr.setMessage(message);\r
+                       elr.setResult(HttpServletResponse.SC_UNSUPPORTED_MEDIA_TYPE);\r
+                       eventlogger.info(elr);\r
+                       resp.sendError(HttpServletResponse.SC_UNSUPPORTED_MEDIA_TYPE, message);\r
+                       return;\r
+               }\r
+               JSONObject jo = getJSONfromInput(req);\r
+               if (jo == null) {\r
+                       message = "Badly formed JSON";\r
+                       elr.setMessage(message);\r
+                       elr.setResult(HttpServletResponse.SC_BAD_REQUEST);\r
+                       eventlogger.info(elr);\r
+                       resp.sendError(HttpServletResponse.SC_BAD_REQUEST, message);\r
+                       return;\r
+               }\r
+               if (intlogger.isDebugEnabled())\r
+                       intlogger.debug(jo.toString());\r
+               Feed feed = null;\r
+               try {\r
+                       feed = new Feed(jo);\r
+               } catch (InvalidObjectException e) {\r
+                       message = e.getMessage();\r
+                       elr.setMessage(message);\r
+                       elr.setResult(HttpServletResponse.SC_BAD_REQUEST);\r
+                       eventlogger.info(elr);\r
+                       resp.sendError(HttpServletResponse.SC_BAD_REQUEST, message);\r
+                       return;\r
+               }\r
+               feed.setFeedid(feedid);\r
+               feed.setPublisher(bhdr);        // set from X-ATT-DR-ON-BEHALF-OF header\r
+\r
+               String subjectgroup = (req.getHeader("X-ATT-DR-ON-BEHALF-OF-GROUP"));  //Adding for group feature:Rally US708115  \r
+               if (!oldFeed.getPublisher().equals(feed.getPublisher()) && subjectgroup == null) {\r
+                       message = "This feed must be modified by the same publisher that created it.";\r
+                       elr.setMessage(message);\r
+                       elr.setResult(HttpServletResponse.SC_BAD_REQUEST);\r
+                       eventlogger.info(elr);\r
+                       resp.sendError(HttpServletResponse.SC_BAD_REQUEST, message);\r
+                       return;\r
+               }\r
+               if (!oldFeed.getName().equals(feed.getName())) {\r
+                       message = "The name of the feed may not be updated.";\r
+                       elr.setMessage(message);\r
+                       elr.setResult(HttpServletResponse.SC_BAD_REQUEST);\r
+                       eventlogger.info(elr);\r
+                       resp.sendError(HttpServletResponse.SC_BAD_REQUEST, message);\r
+                       return;\r
+               }\r
+               if (!oldFeed.getVersion().equals(feed.getVersion())) {\r
+                       message = "The version of the feed may not be updated.";\r
+                       elr.setMessage(message);\r
+                       elr.setResult(HttpServletResponse.SC_BAD_REQUEST);\r
+                       eventlogger.info(elr);\r
+                       resp.sendError(HttpServletResponse.SC_BAD_REQUEST, message);\r
+                       return;\r
+               }\r
+               // Check with the Authorizer\r
+               AuthorizationResponse aresp = authz.decide(req);\r
+               if (! aresp.isAuthorized()) {\r
+                       message = "Policy Engine disallows access.";\r
+                       elr.setMessage(message);\r
+                       elr.setResult(HttpServletResponse.SC_FORBIDDEN);\r
+                       eventlogger.info(elr);\r
+                       resp.sendError(HttpServletResponse.SC_FORBIDDEN, message);\r
+                       return;\r
+               }\r
+\r
+               // Update FEEDS table entries\r
+               if (doUpdate(feed)) {\r
+                       // send response\r
+                       elr.setResult(HttpServletResponse.SC_OK);\r
+                       eventlogger.info(elr);\r
+                       resp.setStatus(HttpServletResponse.SC_OK);\r
+                       resp.setContentType(FEEDFULL_CONTENT_TYPE);\r
+                       resp.getOutputStream().print(feed.asLimitedJSONObject().toString());\r
+\r
+                       \r
+                       /**Change Owner ship of Feed //Adding for group feature:Rally US708115*/\r
+                       if (jo.has("changeowner") && subjectgroup != null) {\r
+                               Boolean changeowner = (Boolean) jo.get("changeowner");\r
+                               if (changeowner != null && changeowner.equals(true)) {\r
+                                       feed.setPublisher(req.getHeader(BEHALF_HEADER));\r
+                                       feed.changeOwnerShip();\r
+                               }\r
+                       }\r
+                       /***End of change ownership*/\r
+\r
+                       provisioningDataChanged();\r
+               } else {\r
+                       // Something went wrong with the UPDATE\r
+                       elr.setResult(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);\r
+                       eventlogger.info(elr);\r
+                       resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, DB_PROBLEM_MSG);\r
+               }\r
+       }\r
+       /**\r
+        * POST on the &lt;feedURL&gt; -- not supported.\r
+        */\r
+       @Override\r
+       public void doPost(HttpServletRequest req, HttpServletResponse resp) throws IOException {\r
+               setIpAndFqdnForEelf("doPost");\r
+               eelflogger.info(EelfMsgs.MESSAGE_WITH_BEHALF, req.getHeader(BEHALF_HEADER));\r
+               String message = "POST not allowed for the feedURL.";\r
+               EventLogRecord elr = new EventLogRecord(req);\r
+               elr.setMessage(message);\r
+               elr.setResult(HttpServletResponse.SC_METHOD_NOT_ALLOWED);\r
+               eventlogger.info(elr);\r
+               resp.sendError(HttpServletResponse.SC_METHOD_NOT_ALLOWED, message);\r
+       }\r
+}\r