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

   1 /*
   2  * Sone - SoneTemplatePage.java - Copyright © 2010–2016 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.ArrayList;
  23 import java.util.Arrays;
  24 import java.util.Collection;
  25 import java.util.Collections;
  26 import java.util.List;
  27 import java.util.Map;
  28
  29 import javax.annotation.Nonnull;
  30
  31 import net.pterodactylus.sone.data.Sone;
  32 import net.pterodactylus.sone.main.SonePlugin;
  33 import net.pterodactylus.sone.web.page.FreenetRequest;
  34 import net.pterodactylus.sone.web.page.FreenetTemplatePage;
  35 import net.pterodactylus.util.notify.Notification;
  36 import net.pterodactylus.util.template.Template;
  37 import net.pterodactylus.util.template.TemplateContext;
  38
  39 import freenet.clients.http.SessionManager.Session;
  40 import freenet.clients.http.ToadletContext;
  41 import freenet.support.api.HTTPRequest;
  42
  43 import com.google.common.collect.ImmutableList;
  44 import com.google.common.collect.ImmutableMap;
  45
  46 /**
  47  * Base page for the Sone web interface.
  48  *
  49  * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
  50  */
  51 public class SoneTemplatePage extends FreenetTemplatePage {
  52
  53         /** The Sone core. */
  54         protected final WebInterface webInterface;
  55
  56         /** The page title l10n key. */
  57         private final String pageTitleKey;
  58
  59         /** Whether to require a login. */
  60         private final boolean requireLogin;
  61
  62         /**
  63          * Creates a new template page for Sone that does not require the user to be
  64          * logged in.
  65          *
  66          * @param path
  67          *            The path of the page
  68          * @param template
  69          *            The template to render
  70          * @param pageTitleKey
  71          *            The l10n key of the page title
  72          * @param webInterface
  73          *            The Sone web interface
  74          */
  75         public SoneTemplatePage(String path, Template template, String pageTitleKey, WebInterface webInterface) {
  76                 this(path, template, pageTitleKey, webInterface, false);
  77         }
  78
  79         /**
  80          * Creates a new template page for Sone.
  81          *
  82          * @param path
  83          *            The path of the page
  84          * @param template
  85          *            The template to render
  86          * @param webInterface
  87          *            The Sone web interface
  88          * @param requireLogin
  89          *            Whether this page requires a login
  90          */
  91         public SoneTemplatePage(String path, Template template, WebInterface webInterface, boolean requireLogin) {
  92                 this(path, template, null, webInterface, requireLogin);
  93         }
  94
  95         /**
  96          * Creates a new template page for Sone.
  97          *
  98          * @param path
  99          *            The path of the page
 100          * @param template
 101          *            The template to render
 102          * @param pageTitleKey
 103          *            The l10n key of the page title
 104          * @param webInterface
 105          *            The Sone web interface
 106          * @param requireLogin
 107          *            Whether this page requires a login
 108          */
 109         public SoneTemplatePage(String path, Template template, String pageTitleKey, WebInterface webInterface, boolean requireLogin) {
 110                 super(path, webInterface.getTemplateContextFactory(), template, "noPermission.html");
 111                 this.pageTitleKey = pageTitleKey;
 112                 this.webInterface = webInterface;
 113                 this.requireLogin = requireLogin;
 114         }
 115
 116         //
 117         // PROTECTED METHODS
 118         //
 119
 120         /**
 121          * Returns the currently logged in Sone.
 122          *
 123          * @param toadletContext
 124          *            The toadlet context
 125          * @return The currently logged in Sone, or {@code null} if no Sone is
 126          *         currently logged in
 127          */
 128         protected Sone getCurrentSone(ToadletContext toadletContext) {
 129                 return webInterface.getCurrentSoneCreatingSession(toadletContext);
 130         }
 131
 132         protected Sone getCurrentSoneWithoutCreatingSession(ToadletContext toadletContext) {
 133                 return webInterface.getCurrentSoneWithoutCreatingSession(toadletContext);
 134         }
 135
 136         /**
 137          * Sets the currently logged in Sone.
 138          *
 139          * @param toadletContext
 140          *            The toadlet context
 141          * @param sone
 142          *            The Sone to set as currently logged in
 143          */
 144         protected void setCurrentSone(ToadletContext toadletContext, Sone sone) {
 145                 webInterface.setCurrentSone(toadletContext, sone);
 146         }
 147
 148         //
 149         // TEMPLATEPAGE METHODS
 150         //
 151
 152         /**
 153          * {@inheritDoc}
 154          */
 155         @Override
 156         protected String getPageTitle(FreenetRequest request) {
 157                 if (pageTitleKey != null) {
 158                         return webInterface.getL10n().getString(pageTitleKey);
 159                 }
 160                 return "";
 161         }
 162
 163         /**
 164          * {@inheritDoc}
 165          */
 166         @Override
 167         protected List<Map<String, String>> getAdditionalLinkNodes(FreenetRequest request) {
 168                 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();
 169         }
 170
 171         /**
 172          * {@inheritDoc}
 173          */
 174         @Override
 175         protected Collection<String> getStyleSheets() {
 176                 return Arrays.asList("css/sone.css");
 177         }
 178
 179         /**
 180          * {@inheritDoc}
 181          */
 182         @Override
 183         protected String getShortcutIcon() {
 184                 return "images/icon.png";
 185         }
 186
 187         /**
 188          * Returns whether this page requires the user to log in.
 189          *
 190          * @return {@code true} if the user is required to be logged in to use this
 191          *         page, {@code false} otherwise
 192          */
 193         protected boolean requiresLogin() {
 194                 return requireLogin;
 195         }
 196
 197         /**
 198          * {@inheritDoc}
 199          */
 200         @Override
 201         protected final void processTemplate(FreenetRequest request, TemplateContext templateContext) throws RedirectException {
 202                 super.processTemplate(request, templateContext);
 203                 Sone currentSone = getCurrentSoneWithoutCreatingSession(request.getToadletContext());
 204                 templateContext.set("preferences", webInterface.getCore().getPreferences());
 205                 templateContext.set("currentSone", currentSone);
 206                 templateContext.set("localSones", webInterface.getCore().getLocalSones());
 207                 templateContext.set("request", request);
 208                 templateContext.set("currentVersion", SonePlugin.getPluginVersion());
 209                 templateContext.set("hasLatestVersion", webInterface.getCore().getUpdateChecker().hasLatestVersion());
 210                 templateContext.set("latestEdition", webInterface.getCore().getUpdateChecker().getLatestEdition());
 211                 templateContext.set("latestVersion", webInterface.getCore().getUpdateChecker().getLatestVersion());
 212                 templateContext.set("latestVersionTime", webInterface.getCore().getUpdateChecker().getLatestVersionDate());
 213                 List<Notification> notifications = new ArrayList<Notification>(webInterface.getNotifications(currentSone));
 214                 Collections.sort(notifications, Notification.CREATED_TIME_SORTER);
 215                 templateContext.set("notifications", notifications);
 216                 templateContext.set("notificationHash", notifications.hashCode());
 217                 handleRequest(request, templateContext);
 218         }
 219
 220         protected void handleRequest(@Nonnull FreenetRequest request, @Nonnull TemplateContext templateContext) throws RedirectException {
 221         }
 222
 223         /**
 224          * {@inheritDoc}
 225          */
 226         @Override
 227         protected String getRedirectTarget(FreenetRequest request) {
 228                 if (requiresLogin() && (getCurrentSoneWithoutCreatingSession(request.getToadletContext()) == null)) {
 229                         HTTPRequest httpRequest = request.getHttpRequest();
 230                         String originalUrl = httpRequest.getPath();
 231                         if (httpRequest.hasParameters()) {
 232                                 StringBuilder requestParameters = new StringBuilder();
 233                                 for (String parameterName : httpRequest.getParameterNames()) {
 234                                         if (requestParameters.length() > 0) {
 235                                                 requestParameters.append("&");
 236                                         }
 237                                         String[] parameterValues = httpRequest.getMultipleParam(parameterName);
 238                                         for (String parameterValue : parameterValues) {
 239                                                 requestParameters.append(urlEncode(parameterName)).append("=").append(urlEncode(parameterValue));
 240                                         }
 241                                 }
 242                                 originalUrl += "?" + requestParameters.toString();
 243                         }
 244                         return "login.html?target=" + urlEncode(originalUrl);
 245                 }
 246                 return null;
 247         }
 248
 249         private static String urlEncode(String value) {
 250                 try {
 251                         return URLEncoder.encode(value, "UTF-8");
 252                 } catch (UnsupportedEncodingException uee1) {
 253                                                         /* A JVM without UTF-8? I don’t think so. */
 254                         throw new RuntimeException(uee1);
 255                 }
 256         }
 257
 258         /**
 259          * {@inheritDoc}
 260          */
 261         @Override
 262         protected boolean isFullAccessOnly() {
 263                 return webInterface.getCore().getPreferences().isRequireFullAccess();
 264         }
 265
 266         /**
 267          * {@inheritDoc}
 268          */
 269         @Override
 270         public boolean isEnabled(ToadletContext toadletContext) {
 271                 if (webInterface.getCore().getPreferences().isRequireFullAccess() && !toadletContext.isAllowedFullAccess()) {
 272                         return false;
 273                 }
 274                 if (requiresLogin()) {
 275                         return getCurrentSoneWithoutCreatingSession(toadletContext) != null;
 276                 }
 277                 return true;
 278         }
 279
 280 }