src/main/java/net/pterodactylus/sone/web/SoneTemplatePage.java

   1 /*
   2  * Sone - SoneTemplatePage.java - Copyright © 2010–2013 David Roden
   3  *
   4  * This program is free software: you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation, either version 3 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16  */
  17
  18 package net.pterodactylus.sone.web;
  19
  20 import java.io.UnsupportedEncodingException;
  21 import java.net.URLEncoder;
  22 import java.util.Arrays;
  23 import java.util.Collection;
  24 import java.util.Collections;
  25 import java.util.List;
  26 import java.util.Map;
  27
  28 import net.pterodactylus.sone.data.Sone;
  29 import net.pterodactylus.sone.main.SonePlugin;
  30 import net.pterodactylus.sone.notify.ListNotificationFilters;
  31 import net.pterodactylus.sone.web.page.FreenetRequest;
  32 import net.pterodactylus.sone.web.page.FreenetTemplatePage;
  33 import net.pterodactylus.util.notify.Notification;
  34 import net.pterodactylus.util.template.Template;
  35 import net.pterodactylus.util.template.TemplateContext;
  36
  37 import com.google.common.base.Optional;
  38 import com.google.common.collect.ImmutableList;
  39 import com.google.common.collect.ImmutableMap;
  40
  41 import freenet.clients.http.ToadletContext;
  42 import freenet.support.api.HTTPRequest;
  43
  44 /**
  45  * Base page for the Sone web interface.
  46  *
  47  * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
  48  */
  49 public class SoneTemplatePage extends FreenetTemplatePage {
  50
  51         /** The Sone core. */
  52         protected final WebInterface webInterface;
  53
  54         /** The page title l10n key. */
  55         private final String pageTitleKey;
  56
  57         /** Whether to require a login. */
  58         private final boolean requireLogin;
  59
  60         /**
  61          * Creates a new template page for Sone that does not require the user to be
  62          * logged in.
  63          *
  64          * @param path
  65          *            The path of the page
  66          * @param template
  67          *            The template to render
  68          * @param webInterface
  69          *            The Sone web interface
  70          */
  71         public SoneTemplatePage(String path, Template template, WebInterface webInterface) {
  72                 this(path, template, null, webInterface, false);
  73         }
  74
  75         /**
  76          * Creates a new template page for Sone that does not require the user to be
  77          * logged in.
  78          *
  79          * @param path
  80          *            The path of the page
  81          * @param template
  82          *            The template to render
  83          * @param pageTitleKey
  84          *            The l10n key of the page title
  85          * @param webInterface
  86          *            The Sone web interface
  87          */
  88         public SoneTemplatePage(String path, Template template, String pageTitleKey, WebInterface webInterface) {
  89                 this(path, template, pageTitleKey, webInterface, false);
  90         }
  91
  92         /**
  93          * Creates a new template page for Sone.
  94          *
  95          * @param path
  96          *            The path of the page
  97          * @param template
  98          *            The template to render
  99          * @param webInterface
 100          *            The Sone web interface
 101          * @param requireLogin
 102          *            Whether this page requires a login
 103          */
 104         public SoneTemplatePage(String path, Template template, WebInterface webInterface, boolean requireLogin) {
 105                 this(path, template, null, webInterface, requireLogin);
 106         }
 107
 108         /**
 109          * Creates a new template page for Sone.
 110          *
 111          * @param path
 112          *            The path of the page
 113          * @param template
 114          *            The template to render
 115          * @param pageTitleKey
 116          *            The l10n key of the page title
 117          * @param webInterface
 118          *            The Sone web interface
 119          * @param requireLogin
 120          *            Whether this page requires a login
 121          */
 122         public SoneTemplatePage(String path, Template template, String pageTitleKey, WebInterface webInterface, boolean requireLogin) {
 123                 super(path, webInterface.getTemplateContextFactory(), template, "noPermission.html");
 124                 this.pageTitleKey = pageTitleKey;
 125                 this.webInterface = webInterface;
 126                 this.requireLogin = requireLogin;
 127         }
 128
 129         //
 130         // PROTECTED METHODS
 131         //
 132
 133         /**
 134          * Returns the currently logged in Sone.
 135          *
 136          * @param toadletContext
 137          *            The toadlet context
 138          * @return The currently logged in Sone, or {@code null} if no Sone is
 139          *         currently logged in
 140          */
 141         protected Optional<Sone> getCurrentSone(ToadletContext toadletContext) {
 142                 return webInterface.getCurrentSone(toadletContext);
 143         }
 144
 145         /**
 146          * Returns the currently logged in Sone.
 147          *
 148          * @param toadletContext
 149          *            The toadlet context
 150          * @param create
 151          *            {@code true} to create a new session if no session exists,
 152          *            {@code false} to not create a new session
 153          * @return The currently logged in Sone, or {@code null} if no Sone is
 154          *         currently logged in
 155          */
 156         protected Optional<Sone> getCurrentSone(ToadletContext toadletContext, boolean create) {
 157                 return webInterface.getCurrentSone(toadletContext, create);
 158         }
 159
 160         /**
 161          * Sets the currently logged in Sone.
 162          *
 163          * @param toadletContext
 164          *            The toadlet context
 165          * @param sone
 166          *            The Sone to set as currently logged in
 167          */
 168         protected void setCurrentSone(ToadletContext toadletContext, Sone sone) {
 169                 webInterface.setCurrentSone(toadletContext, sone);
 170         }
 171
 172         //
 173         // TEMPLATEPAGE METHODS
 174         //
 175
 176         /**
 177          * {@inheritDoc}
 178          */
 179         @Override
 180         protected String getPageTitle(FreenetRequest request) {
 181                 if (pageTitleKey != null) {
 182                         return webInterface.getL10n().getString(pageTitleKey);
 183                 }
 184                 return "";
 185         }
 186
 187         /**
 188          * {@inheritDoc}
 189          */
 190         @Override
 191         protected List<Map<String, String>> getAdditionalLinkNodes(FreenetRequest request) {
 192                 return ImmutableList.<Map<String, String>> builder().add(ImmutableMap.<String, String> builder().put("rel", "search").put("type", "application/opensearchdescription+xml").put("title", "Sone").put("href", "http://" + request.getHttpRequest().getHeader("host") + "/Sone/OpenSearch.xml").build()).build();
 193         }
 194
 195         /**
 196          * {@inheritDoc}
 197          */
 198         @Override
 199         protected Collection<String> getStyleSheets() {
 200                 return Arrays.asList("css/sone.css");
 201         }
 202
 203         /**
 204          * {@inheritDoc}
 205          */
 206         @Override
 207         protected String getShortcutIcon() {
 208                 return "images/icon.png";
 209         }
 210
 211         /**
 212          * Returns whether this page requires the user to log in.
 213          *
 214          * @return {@code true} if the user is required to be logged in to use this
 215          *         page, {@code false} otherwise
 216          */
 217         protected boolean requiresLogin() {
 218                 return requireLogin;
 219         }
 220
 221         /**
 222          * {@inheritDoc}
 223          */
 224         @Override
 225         protected void processTemplate(FreenetRequest request, TemplateContext templateContext) throws RedirectException {
 226                 super.processTemplate(request, templateContext);
 227                 Optional<Sone> currentSone = getCurrentSone(request.getToadletContext(), false);
 228                 templateContext.set("core", webInterface.getCore());
 229                 templateContext.set("currentSone", currentSone.orNull());
 230                 templateContext.set("localSones", webInterface.getCore().getLocalSones());
 231                 templateContext.set("request", request);
 232                 templateContext.set("currentVersion", SonePlugin.VERSION);
 233                 templateContext.set("hasLatestVersion", webInterface.getCore().getUpdateChecker().hasLatestVersion());
 234                 templateContext.set("latestEdition", webInterface.getCore().getUpdateChecker().getLatestEdition());
 235                 templateContext.set("latestVersion", webInterface.getCore().getUpdateChecker().getLatestVersion());
 236                 templateContext.set("latestVersionTime", webInterface.getCore().getUpdateChecker().getLatestVersionDate());
 237                 List<Notification> notifications = ListNotificationFilters.filterNotifications(webInterface.getNotifications().getNotifications(), currentSone.orNull());
 238                 Collections.sort(notifications, Notification.CREATED_TIME_SORTER);
 239                 templateContext.set("notifications", notifications);
 240                 templateContext.set("notificationHash", notifications.hashCode());
 241         }
 242
 243         /**
 244          * {@inheritDoc}
 245          */
 246         @Override
 247         protected String getRedirectTarget(FreenetRequest request) {
 248                 if (requiresLogin() && !getCurrentSone(request.getToadletContext(), false).isPresent()) {
 249                         HTTPRequest httpRequest = request.getHttpRequest();
 250                         String originalUrl = httpRequest.getPath();
 251                         if (httpRequest.hasParameters()) {
 252                                 StringBuilder requestParameters = new StringBuilder();
 253                                 for (String parameterName : httpRequest.getParameterNames()) {
 254                                         if (requestParameters.length() > 0) {
 255                                                 requestParameters.append("%26");
 256                                         }
 257                                         String[] parameterValues = httpRequest.getMultipleParam(parameterName);
 258                                         for (String parameterValue : parameterValues) {
 259                                                 try {
 260                                                         requestParameters.append(URLEncoder.encode(parameterName, "UTF-8")).append("%3d").append(URLEncoder.encode(parameterValue, "UTF-8"));
 261                                                 } catch (UnsupportedEncodingException uee1) {
 262                                                         /* A JVM without UTF-8? I don’t think so. */
 263                                                 }
 264                                         }
 265                                 }
 266                                 originalUrl += "?" + requestParameters.toString();
 267                         }
 268                         return "login.html?target=" + originalUrl;
 269                 }
 270                 return null;
 271         }
 272
 273         /**
 274          * {@inheritDoc}
 275          */
 276         @Override
 277         protected boolean isFullAccessOnly() {
 278                 return webInterface.getCore().getPreferences().isRequireFullAccess();
 279         }
 280
 281         /**
 282          * {@inheritDoc}
 283          */
 284         @Override
 285         public boolean isEnabled(ToadletContext toadletContext) {
 286                 if (webInterface.getCore().getPreferences().isRequireFullAccess() && !toadletContext.isAllowedFullAccess()) {
 287                         return false;
 288                 }
 289                 if (requiresLogin()) {
 290                         return getCurrentSone(toadletContext, false).isPresent();
 291                 }
 292                 return true;
 293         }
 294
 295 }