| // Copyright (C) 2014 The Android Open Source Project |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| package com.ericsson.gerrit.plugins.eventslog; |
| |
| import com.google.gerrit.extensions.restapi.Url; |
| import com.google.gerrit.server.CurrentUser; |
| import com.google.inject.Inject; |
| import com.google.inject.Provider; |
| import com.google.inject.Singleton; |
| import java.io.IOException; |
| import java.io.Writer; |
| import java.util.HashMap; |
| import java.util.Map; |
| import javax.servlet.ServletException; |
| import javax.servlet.http.HttpServlet; |
| import javax.servlet.http.HttpServletRequest; |
| import javax.servlet.http.HttpServletResponse; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| @Singleton |
| class EventsRestApiServlet extends HttpServlet { |
| private static final Logger log = LoggerFactory.getLogger(EventsRestApiServlet.class); |
| private static final long serialVersionUID = 1L; |
| |
| private final EventStore store; |
| private final QueryMaker queryMaker; |
| private final Provider<CurrentUser> userProvider; |
| |
| @Inject |
| EventsRestApiServlet( |
| EventStore store, QueryMaker queryMaker, Provider<CurrentUser> userProvider) { |
| this.store = store; |
| this.queryMaker = queryMaker; |
| this.userProvider = userProvider; |
| } |
| |
| @Override |
| protected void doGet(HttpServletRequest req, HttpServletResponse rsp) |
| throws IOException, ServletException { |
| if (!userProvider.get().isIdentifiedUser()) { |
| rsp.sendError(HttpServletResponse.SC_UNAUTHORIZED); |
| return; |
| } |
| rsp.setContentType("text/html"); |
| Map<String, String> params = req.getQueryString() != null ? getParameters(req) : null; |
| |
| try (Writer out = rsp.getWriter()) { |
| String query = queryMaker.formQueryFromRequestParameters(params); |
| for (String event : store.queryChangeEvents(query)) { |
| out.write(event + "\n"); |
| } |
| } catch (MalformedQueryException e) { |
| log.error("Bad Request", e); |
| rsp.sendError(HttpServletResponse.SC_BAD_REQUEST); |
| } catch (ServiceUnavailableException e) { |
| log.error("Service Unavailable", e); |
| rsp.sendError(HttpServletResponse.SC_SERVICE_UNAVAILABLE); |
| } catch (EventsLogException e) { |
| log.error("Could not query from request parameters", e); |
| } |
| } |
| |
| private static Map<String, String> getParameters(HttpServletRequest req) { |
| Map<String, String> params = new HashMap<>(); |
| for (final String pair : req.getQueryString().split("[&;]")) { |
| int eq = pair.indexOf('='); |
| if (0 < eq) { |
| String name = pair.substring(0, eq); |
| String value = pair.substring(eq + 1); |
| |
| name = Url.decode(name); |
| value = Url.decode(value); |
| params.put(name, value); |
| } |
| } |
| return params; |
| } |
| } |