| // Copyright (C) 2013 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.googlesource.gerrit.plugins.github.velocity; |
| |
| import com.google.common.base.MoreObjects; |
| import com.google.gerrit.server.IdentifiedUser; |
| import com.google.inject.Inject; |
| import com.google.inject.Provider; |
| import com.google.inject.Singleton; |
| import com.google.inject.name.Named; |
| |
| import com.googlesource.gerrit.plugins.github.GitHubConfig.NextPage; |
| import com.googlesource.gerrit.plugins.github.oauth.GitHubLogin; |
| import com.googlesource.gerrit.plugins.github.oauth.ScopedProvider; |
| |
| import org.apache.http.HttpStatus; |
| import org.apache.velocity.Template; |
| import org.apache.velocity.VelocityContext; |
| import org.apache.velocity.exception.ResourceNotFoundException; |
| import org.apache.velocity.runtime.RuntimeInstance; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import java.io.IOException; |
| import java.nio.charset.StandardCharsets; |
| import java.util.Map.Entry; |
| |
| import javax.servlet.ServletException; |
| import javax.servlet.ServletRequest; |
| import javax.servlet.ServletResponse; |
| import javax.servlet.http.HttpServlet; |
| import javax.servlet.http.HttpServletRequest; |
| import javax.servlet.http.HttpServletResponse; |
| |
| @Singleton |
| public class VelocityViewServlet extends HttpServlet { |
| private static final Logger log = LoggerFactory |
| .getLogger(VelocityViewServlet.class); |
| private static final String STATIC_PREFIX = "/static"; |
| private static final long serialVersionUID = 529071287765413268L; |
| private final RuntimeInstance velocityRuntime; |
| private final Provider<PluginVelocityModel> modelProvider; |
| private final ScopedProvider<GitHubLogin> loginProvider; |
| private final Provider<IdentifiedUser> userProvider; |
| |
| @Inject |
| public VelocityViewServlet( |
| @Named("PluginRuntimeInstance") final RuntimeInstance velocityRuntime, |
| Provider<PluginVelocityModel> modelProvider, |
| ScopedProvider<GitHubLogin> loginProvider, Provider<IdentifiedUser> userProvider) { |
| |
| this.velocityRuntime = velocityRuntime; |
| this.modelProvider = modelProvider; |
| this.loginProvider = loginProvider; |
| this.userProvider = userProvider; |
| } |
| |
| |
| @Override |
| public void service(ServletRequest request, ServletResponse response) |
| throws ServletException, IOException { |
| HttpServletRequest req = (HttpServletRequest) request; |
| HttpServletResponse resp = (HttpServletResponse) response; |
| |
| String servletPath = req.getPathInfo(); |
| NextPage nextPage = (NextPage) req.getAttribute("destUrl"); |
| String destUrl = null; |
| if (nextPage != null && !nextPage.uri.startsWith("/")) { |
| destUrl = |
| servletPath.substring(0, servletPath.lastIndexOf("/")) + "/" |
| + nextPage.uri; |
| } |
| |
| String pathInfo = STATIC_PREFIX + MoreObjects.firstNonNull(destUrl, servletPath); |
| |
| try { |
| Template template = velocityRuntime.getTemplate(pathInfo, "UTF-8"); |
| VelocityContext context = initVelocityModel(req).getContext(); |
| context.put("request", req); |
| resp.setHeader("content-type", "text/html"); |
| resp.setCharacterEncoding(StandardCharsets.UTF_8.name()); |
| template.merge(context, resp.getWriter()); |
| } catch (ResourceNotFoundException e) { |
| log.error("Cannot load velocity template " + pathInfo, e); |
| resp.sendError(HttpStatus.SC_NOT_FOUND); |
| } catch (Exception e) { |
| log.error("Error executing velocity template " + pathInfo, e); |
| resp.sendError(HttpStatus.SC_INTERNAL_SERVER_ERROR, |
| e.getLocalizedMessage()); |
| } |
| } |
| |
| private PluginVelocityModel initVelocityModel(HttpServletRequest request) throws IOException { |
| PluginVelocityModel model = modelProvider.get(); |
| GitHubLogin gitHubLogin = loginProvider.get(request); |
| model.put("myself", gitHubLogin.getMyself()); |
| model.put("user", userProvider.get()); |
| model.put("hub", gitHubLogin.getHub()); |
| |
| for (Entry<String, String[]> reqPar : request.getParameterMap().entrySet()) { |
| model.put(reqPar.getKey(), reqPar.getValue()); |
| } |
| return model; |
| } |
| } |