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

   1 /*
   2  * FreenetSone - WebInterface.java - Copyright © 2010 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.InputStream;
  21 import java.io.InputStreamReader;
  22 import java.io.Reader;
  23 import java.io.UnsupportedEncodingException;
  24 import java.net.URI;
  25 import java.net.URISyntaxException;
  26 import java.util.ArrayList;
  27 import java.util.List;
  28 import java.util.logging.Level;
  29 import java.util.logging.Logger;
  30
  31 import net.pterodactylus.sone.core.Core;
  32 import net.pterodactylus.sone.data.Post;
  33 import net.pterodactylus.sone.data.Sone;
  34 import net.pterodactylus.sone.freenet.L10nFilter;
  35 import net.pterodactylus.sone.main.SonePlugin;
  36 import net.pterodactylus.sone.template.GetPagePlugin;
  37 import net.pterodactylus.sone.template.PostAccessor;
  38 import net.pterodactylus.sone.template.RequestChangeFilter;
  39 import net.pterodactylus.sone.template.SoneAccessor;
  40 import net.pterodactylus.sone.template.SubstringFilter;
  41 import net.pterodactylus.sone.web.ajax.GetSoneStatusPage;
  42 import net.pterodactylus.sone.web.ajax.GetTranslationPage;
  43 import net.pterodactylus.sone.web.page.PageToadlet;
  44 import net.pterodactylus.sone.web.page.PageToadletFactory;
  45 import net.pterodactylus.sone.web.page.StaticPage;
  46 import net.pterodactylus.util.logging.Logging;
  47 import net.pterodactylus.util.service.AbstractService;
  48 import net.pterodactylus.util.template.DateFilter;
  49 import net.pterodactylus.util.template.DefaultTemplateFactory;
  50 import net.pterodactylus.util.template.PaginationPlugin;
  51 import net.pterodactylus.util.template.ReflectionAccessor;
  52 import net.pterodactylus.util.template.Template;
  53 import net.pterodactylus.util.template.TemplateException;
  54 import net.pterodactylus.util.template.TemplateFactory;
  55 import net.pterodactylus.util.template.TemplateProvider;
  56 import net.pterodactylus.util.template.XmlFilter;
  57 import freenet.clients.http.SessionManager;
  58 import freenet.clients.http.ToadletContainer;
  59 import freenet.l10n.BaseL10n;
  60
  61 /**
  62  * Bundles functionality that a web interface of a Freenet plugin needs, e.g.
  63  * references to l10n helpers.
  64  *
  65  * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
  66  */
  67 public class WebInterface extends AbstractService {
  68
  69         /** The logger. */
  70         private static final Logger logger = Logging.getLogger(WebInterface.class);
  71
  72         /** The Sone plugin. */
  73         private final SonePlugin sonePlugin;
  74
  75         /** The registered toadlets. */
  76         private final List<PageToadlet> pageToadlets = new ArrayList<PageToadlet>();
  77
  78         /**
  79          * Creates a new web interface.
  80          *
  81          * @param sonePlugin
  82          *            The Sone plugin
  83          */
  84         public WebInterface(SonePlugin sonePlugin) {
  85                 super("Sone Web Interface", false);
  86                 this.sonePlugin = sonePlugin;
  87         }
  88
  89         //
  90         // ACCESSORS
  91         //
  92
  93         /**
  94          * Returns the Sone core used by the Sone plugin.
  95          *
  96          * @return The Sone core
  97          */
  98         public Core core() {
  99                 return sonePlugin.core();
 100         }
 101
 102         /**
 103          * Returns the l10n helper of the node.
 104          *
 105          * @return The node’s l10n helper
 106          */
 107         public BaseL10n l10n() {
 108                 return sonePlugin.l10n().getBase();
 109         }
 110
 111         /**
 112          * Returns the session manager of the node.
 113          *
 114          * @return The node’s session manager
 115          */
 116         public SessionManager sessionManager() {
 117                 try {
 118                         return sonePlugin.pluginRespirator().getSessionManager(new URI("/"));
 119                 } catch (URISyntaxException use1) {
 120                         logger.log(Level.SEVERE, "Could not get Session Manager!", use1);
 121                         return null;
 122                 }
 123         }
 124
 125         //
 126         // SERVICE METHODS
 127         //
 128
 129         /**
 130          * {@inheritDoc}
 131          */
 132         @Override
 133         protected void serviceStart() {
 134                 registerToadlets();
 135         }
 136
 137         /**
 138          * {@inheritDoc}
 139          */
 140         @Override
 141         protected void serviceStop() {
 142                 unregisterToadlets();
 143         }
 144
 145         //
 146         // PRIVATE METHODS
 147         //
 148
 149         /**
 150          * Register all toadlets.
 151          */
 152         private void registerToadlets() {
 153                 DefaultTemplateFactory templateFactory = new DefaultTemplateFactory();
 154                 templateFactory.addAccessor(Object.class, new ReflectionAccessor());
 155                 templateFactory.addAccessor(Sone.class, new SoneAccessor(core()));
 156                 templateFactory.addAccessor(Post.class, new PostAccessor(core()));
 157                 templateFactory.addFilter("date", new DateFilter());
 158                 templateFactory.addFilter("l10n", new L10nFilter(l10n()));
 159                 templateFactory.addFilter("substring", new SubstringFilter());
 160                 templateFactory.addFilter("xml", new XmlFilter());
 161                 templateFactory.addFilter("change", new RequestChangeFilter());
 162                 templateFactory.addPlugin("getpage", new GetPagePlugin());
 163                 templateFactory.addPlugin("paginate", new PaginationPlugin());
 164                 templateFactory.setTemplateProvider(new ClassPathTemplateProvider(templateFactory));
 165                 templateFactory.addTemplateObject("formPassword", sonePlugin.pluginRespirator().getToadletContainer().getFormPassword());
 166
 167                 Template loginTemplate = templateFactory.createTemplate(createReader("/templates/login.html"));
 168                 Template indexTemplate = templateFactory.createTemplate(createReader("/templates/index.html"));
 169                 Template addSoneTemplate = templateFactory.createTemplate(createReader("/templates/addSone.html"));
 170                 Template loadSoneTemplate = templateFactory.createTemplate(createReader("/templates/loadSone.html"));
 171                 Template knownSonesTemplate = templateFactory.createTemplate(createReader("/templates/knownSones.html"));
 172                 Template createSoneTemplate = templateFactory.createTemplate(createReader("/templates/createSone.html"));
 173                 Template createPostTemplate = templateFactory.createTemplate(createReader("/templates/createPost.html"));
 174                 Template createReplyTemplate = templateFactory.createTemplate(createReader("/templates/createReply.html"));
 175                 Template editProfileTemplate = templateFactory.createTemplate(createReader("/templates/editProfile.html"));
 176                 Template backupProfileTemplate = templateFactory.createTemplate(createReader("/templates/backup.xml"));
 177                 Template viewSoneTemplate = templateFactory.createTemplate(createReader("/templates/viewSone.html"));
 178                 Template blockSoneTemplate = templateFactory.createTemplate(createReader("/templates/blockSone.html"));
 179                 Template unblockSoneTemplate = templateFactory.createTemplate(createReader("/templates/unblockSone.html"));
 180                 Template viewPostTemplate = templateFactory.createTemplate(createReader("/templates/viewPost.html"));
 181                 Template deletePostTemplate = templateFactory.createTemplate(createReader("/templates/deletePost.html"));
 182                 Template deleteReplyTemplate = templateFactory.createTemplate(createReader("/templates/deleteReply.html"));
 183                 Template followSoneTemplate = templateFactory.createTemplate(createReader("/templates/followSone.html"));
 184                 Template unfollowSoneTemplate = templateFactory.createTemplate(createReader("/templates/unfollowSone.html"));
 185                 Template deleteSoneTemplate = templateFactory.createTemplate(createReader("/templates/deleteSone.html"));
 186                 Template noPermissionTemplate = templateFactory.createTemplate(createReader("/templates/noPermission.html"));
 187                 Template logoutTemplate = templateFactory.createTemplate(createReader("/templates/logout.html"));
 188
 189                 PageToadletFactory pageToadletFactory = new PageToadletFactory(sonePlugin.pluginRespirator().getHLSimpleClient(), "/Sone/");
 190                 pageToadlets.add(pageToadletFactory.createPageToadlet(new IndexPage(indexTemplate, this), "Index"));
 191                 pageToadlets.add(pageToadletFactory.createPageToadlet(new CreateSonePage(createSoneTemplate, this), "CreateSone"));
 192                 pageToadlets.add(pageToadletFactory.createPageToadlet(new LoadSonePage(loadSoneTemplate, this)));
 193                 pageToadlets.add(pageToadletFactory.createPageToadlet(new AddSonePage(addSoneTemplate, this)));
 194                 pageToadlets.add(pageToadletFactory.createPageToadlet(new KnownSonesPage(knownSonesTemplate, this), "KnownSones"));
 195                 pageToadlets.add(pageToadletFactory.createPageToadlet(new EditProfilePage(editProfileTemplate, this), "EditProfile"));
 196                 pageToadlets.add(pageToadletFactory.createPageToadlet(new BackupProfilePage(backupProfileTemplate, this)));
 197                 pageToadlets.add(pageToadletFactory.createPageToadlet(new CreatePostPage(createPostTemplate, this)));
 198                 pageToadlets.add(pageToadletFactory.createPageToadlet(new CreateReplyPage(createReplyTemplate, this)));
 199                 pageToadlets.add(pageToadletFactory.createPageToadlet(new ViewSonePage(viewSoneTemplate, this)));
 200                 pageToadlets.add(pageToadletFactory.createPageToadlet(new BlockSonePage(blockSoneTemplate, this)));
 201                 pageToadlets.add(pageToadletFactory.createPageToadlet(new UnblockSonePage(unblockSoneTemplate, this)));
 202                 pageToadlets.add(pageToadletFactory.createPageToadlet(new ViewPostPage(viewPostTemplate, this)));
 203                 pageToadlets.add(pageToadletFactory.createPageToadlet(new DeletePostPage(deletePostTemplate, this)));
 204                 pageToadlets.add(pageToadletFactory.createPageToadlet(new DeleteReplyPage(deleteReplyTemplate, this)));
 205                 pageToadlets.add(pageToadletFactory.createPageToadlet(new FollowSonePage(followSoneTemplate, this)));
 206                 pageToadlets.add(pageToadletFactory.createPageToadlet(new UnfollowSonePage(unfollowSoneTemplate, this)));
 207                 pageToadlets.add(pageToadletFactory.createPageToadlet(new DeleteSonePage(deleteSoneTemplate, this), "DeleteSone"));
 208                 pageToadlets.add(pageToadletFactory.createPageToadlet(new LoginPage(loginTemplate, this), "Login"));
 209                 pageToadlets.add(pageToadletFactory.createPageToadlet(new LogoutPage(logoutTemplate, this), "Logout"));
 210                 pageToadlets.add(pageToadletFactory.createPageToadlet(new SoneTemplatePage("noPermission.html", noPermissionTemplate, "Page.NoPermission.Title", this)));
 211                 pageToadlets.add(pageToadletFactory.createPageToadlet(new StaticPage("css/", "/static/css/", "text/css")));
 212                 pageToadlets.add(pageToadletFactory.createPageToadlet(new StaticPage("javascript/", "/static/javascript/", "text/javascript")));
 213                 pageToadlets.add(pageToadletFactory.createPageToadlet(new StaticPage("images/", "/static/images/", "image/png")));
 214                 pageToadlets.add(pageToadletFactory.createPageToadlet(new GetTranslationPage(this)));
 215                 pageToadlets.add(pageToadletFactory.createPageToadlet(new GetSoneStatusPage(core())));
 216
 217                 ToadletContainer toadletContainer = sonePlugin.pluginRespirator().getToadletContainer();
 218                 toadletContainer.getPageMaker().addNavigationCategory("/Sone/index.html", "Navigation.Menu.Name", "Navigation.Menu.Tooltip", sonePlugin);
 219                 for (PageToadlet toadlet : pageToadlets) {
 220                         String menuName = toadlet.getMenuName();
 221                         if (menuName != null) {
 222                                 toadletContainer.register(toadlet, "Navigation.Menu.Name", toadlet.path(), true, "Navigation.Menu.Item." + menuName + ".Name", "Navigation.Menu.Item." + menuName + ".Tooltip", false, toadlet);
 223                         } else {
 224                                 toadletContainer.register(toadlet, null, toadlet.path(), true, false);
 225                         }
 226                 }
 227         }
 228
 229         /**
 230          * Unregisters all toadlets.
 231          */
 232         private void unregisterToadlets() {
 233                 ToadletContainer toadletContainer = sonePlugin.pluginRespirator().getToadletContainer();
 234                 for (PageToadlet pageToadlet : pageToadlets) {
 235                         toadletContainer.unregister(pageToadlet);
 236                 }
 237                 toadletContainer.getPageMaker().removeNavigationCategory("Navigation.Menu.Name");
 238         }
 239
 240         /**
 241          * Creates a {@link Reader} from the {@link InputStream} for the resource
 242          * with the given name.
 243          *
 244          * @param resourceName
 245          *            The name of the resource
 246          * @return A {@link Reader} for the resource
 247          */
 248         private Reader createReader(String resourceName) {
 249                 try {
 250                         return new InputStreamReader(getClass().getResourceAsStream(resourceName), "UTF-8");
 251                 } catch (UnsupportedEncodingException uee1) {
 252                         return null;
 253                 }
 254         }
 255
 256         /**
 257          * Template provider implementation that uses
 258          * {@link WebInterface#createReader(String)} to load templates for
 259          * inclusion.
 260          *
 261          * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
 262          */
 263         private class ClassPathTemplateProvider implements TemplateProvider {
 264
 265                 /** The template factory. */
 266                 private final TemplateFactory templateFactory;
 267
 268                 /**
 269                  * Creates a new template provider that locates templates on the
 270                  * classpath.
 271                  *
 272                  * @param templateFactory
 273                  *            The template factory to create the templates
 274                  */
 275                 public ClassPathTemplateProvider(TemplateFactory templateFactory) {
 276                         this.templateFactory = templateFactory;
 277                 }
 278
 279                 /**
 280                  * {@inheritDoc}
 281                  */
 282                 @Override
 283                 @SuppressWarnings("synthetic-access")
 284                 public Template getTemplate(String templateName) {
 285                         Reader templateReader = createReader("/templates/" + templateName);
 286                         if (templateReader == null) {
 287                                 return null;
 288                         }
 289                         Template template = templateFactory.createTemplate(templateReader);
 290                         try {
 291                                 template.parse();
 292                         } catch (TemplateException te1) {
 293                                 logger.log(Level.WARNING, "Could not parse template “" + templateName + "” for inclusion!", te1);
 294                         }
 295                         return template;
 296                 }
 297
 298         }
 299 }