X-Git-Url: https://git.pterodactylus.net/?p=Sone.git;a=blobdiff_plain;f=src%2Fmain%2Fjava%2Fnet%2Fpterodactylus%2Fsone%2Fweb%2Fpage%2FFreenetTemplatePage.java;fp=src%2Fmain%2Fjava%2Fnet%2Fpterodactylus%2Fsone%2Fweb%2Fpage%2FFreenetTemplatePage.java;h=0000000000000000000000000000000000000000;hp=9cfd02692f7bbca0e697f3408159b5c0914ac86d;hb=03cec6a6772c2d836d94864adddaf544cbe9d72f;hpb=6f1f26e3998cfef155b0cf59152827accea70d30 diff --git a/src/main/java/net/pterodactylus/sone/web/page/FreenetTemplatePage.java b/src/main/java/net/pterodactylus/sone/web/page/FreenetTemplatePage.java deleted file mode 100644 index 9cfd026..0000000 --- a/src/main/java/net/pterodactylus/sone/web/page/FreenetTemplatePage.java +++ /dev/null @@ -1,323 +0,0 @@ -/* - * Sone - FreenetTemplatePage.java - Copyright © 2010–2016 David Roden - * - * This program is free software: you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation, either version 3 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see . - */ - -package net.pterodactylus.sone.web.page; - -import static java.lang.String.format; -import static java.util.logging.Logger.getLogger; - -import java.io.IOException; -import java.io.StringWriter; -import java.net.URI; -import java.util.Collection; -import java.util.Collections; -import java.util.List; -import java.util.Map; -import java.util.Map.Entry; -import java.util.logging.Level; -import java.util.logging.Logger; - -import net.pterodactylus.util.template.Template; -import net.pterodactylus.util.template.TemplateContext; -import net.pterodactylus.util.template.TemplateContextFactory; -import net.pterodactylus.util.web.Method; -import net.pterodactylus.util.web.Page; -import net.pterodactylus.util.web.RedirectResponse; -import net.pterodactylus.util.web.Response; -import freenet.clients.http.LinkEnabledCallback; -import freenet.clients.http.PageMaker; -import freenet.clients.http.PageNode; -import freenet.clients.http.ToadletContext; -import freenet.support.HTMLNode; - -/** - * Base class for all {@link Page}s that are rendered with {@link Template}s and - * fit into Freenet’s web interface. - * - * @author David ‘Bombe’ Roden - */ -public class FreenetTemplatePage implements FreenetPage, LinkEnabledCallback { - - /** The logger. */ - private static final Logger logger = getLogger(FreenetTemplatePage.class.getName()); - - /** The path of the page. */ - private final String path; - - /** The template context factory. */ - private final TemplateContextFactory templateContextFactory; - - /** The template to render. */ - private final Template template; - - /** Where to redirect for invalid form passwords. */ - private final String invalidFormPasswordRedirectTarget; - - /** - * Creates a new template page. - * - * @param path - * The path of the page - * @param templateContextFactory - * The template context factory - * @param template - * The template to render - * @param invalidFormPasswordRedirectTarget - * The target to redirect to if a POST request does not contain - * the correct form password - */ - public FreenetTemplatePage(String path, TemplateContextFactory templateContextFactory, Template template, String invalidFormPasswordRedirectTarget) { - this.path = path; - this.templateContextFactory = templateContextFactory; - this.template = template; - this.invalidFormPasswordRedirectTarget = invalidFormPasswordRedirectTarget; - } - - /** - * {@inheritDoc} - */ - @Override - public String getPath() { - return path; - } - - /** - * Returns the title of the page. - * - * @param request - * The request to serve - * @return The title of the page - */ - @SuppressWarnings("static-method") - protected String getPageTitle(FreenetRequest request) { - return null; - } - - /** - * {@inheritDoc} - */ - @Override - public boolean isPrefixPage() { - return false; - } - - /** - * {@inheritDoc} - */ - @Override - public final Response handleRequest(FreenetRequest request, Response response) throws IOException { - String redirectTarget = getRedirectTarget(request); - if (redirectTarget != null) { - return new RedirectResponse(redirectTarget); - } - - if (isFullAccessOnly() && !request.getToadletContext().isAllowedFullAccess()) { - return response.setStatusCode(401).setStatusText("Not authorized").setContentType("text/html"); - } - ToadletContext toadletContext = request.getToadletContext(); - if (request.getMethod() == Method.POST) { - /* require form password. */ - String formPassword = request.getHttpRequest().getPartAsStringFailsafe("formPassword", 32); - if (!formPassword.equals(toadletContext.getContainer().getFormPassword())) { - return new RedirectResponse(invalidFormPasswordRedirectTarget); - } - } - PageMaker pageMaker = toadletContext.getPageMaker(); - PageNode pageNode = pageMaker.getPageNode(getPageTitle(request), toadletContext); - for (String styleSheet : getStyleSheets()) { - pageNode.addCustomStyleSheet(styleSheet); - } - for (Map linkNodeParameters : getAdditionalLinkNodes(request)) { - HTMLNode linkNode = pageNode.headNode.addChild("link"); - for (Entry parameter : linkNodeParameters.entrySet()) { - linkNode.addAttribute(parameter.getKey(), parameter.getValue()); - } - } - String shortcutIcon = getShortcutIcon(); - if (shortcutIcon != null) { - pageNode.addForwardLink("icon", shortcutIcon); - } - - TemplateContext templateContext = templateContextFactory.createTemplateContext(); - templateContext.mergeContext(template.getInitialContext()); - try { - long start = System.nanoTime(); - processTemplate(request, templateContext); - long finish = System.nanoTime(); - logger.log(Level.FINEST, format("Template was rendered in %.2fms.", (finish - start) / 1000000.0)); - } catch (RedirectException re1) { - return new RedirectResponse(re1.getTarget()); - } - - StringWriter stringWriter = new StringWriter(); - template.render(templateContext, stringWriter); - pageNode.content.addChild("%", stringWriter.toString()); - - postProcess(request, templateContext); - - return response.setStatusCode(200).setStatusText("OK").setContentType("text/html").write(pageNode.outer.generate()); - } - - /** - * Can be overridden to return a custom set of style sheets that are to be - * included in the page’s header. - * - * @return Additional style sheets to load - */ - @SuppressWarnings("static-method") - protected Collection getStyleSheets() { - return Collections.emptySet(); - } - - /** - * Returns the name of the shortcut icon to include in the page’s header. - * - * @return The URL of the shortcut icon, or {@code null} for no icon - */ - @SuppressWarnings("static-method") - protected String getShortcutIcon() { - return null; - } - - /** - * Can be overridden when extending classes need to set variables in the - * template before it is rendered. - * - * @param request - * The request that is rendered - * @param templateContext - * The template context to set variables in - * @throws RedirectException - * if the processing page wants to redirect after processing - */ - protected void processTemplate(FreenetRequest request, TemplateContext templateContext) throws RedirectException { - /* do nothing. */ - } - - /** - * This method will be called after - * {@link #processTemplate(FreenetRequest, TemplateContext)} has processed - * the template and the template was rendered. This method will not be - * called if {@link #processTemplate(FreenetRequest, TemplateContext)} - * throws a {@link RedirectException}! - * - * @param request - * The request being processed - * @param templateContext - * The template context that supplied the rendered data - */ - protected void postProcess(FreenetRequest request, TemplateContext templateContext) { - /* do nothing. */ - } - - /** - * Can be overridden to redirect the user to a different page, in case a log - * in is required, or something else is wrong. - * - * @param request - * The request that is processed - * @return The URL to redirect to, or {@code null} to not redirect - */ - @SuppressWarnings("static-method") - protected String getRedirectTarget(FreenetRequest request) { - return null; - } - - /** - * Returns additional <link> nodes for the HTML’s <head> node. - * - * @param request - * The request for which to return the link nodes - * @return All link nodes that should be added to the HTML head - */ - @SuppressWarnings("static-method") - protected List> getAdditionalLinkNodes(FreenetRequest request) { - return Collections.emptyList(); - } - - /** - * Returns whether this page should only be allowed for requests from hosts - * with full access. - * - * @return {@code true} if this page should only be allowed for hosts with - * full access, {@code false} to allow this page for any host - */ - @SuppressWarnings("static-method") - protected boolean isFullAccessOnly() { - return false; - } - - /** - * {@inheritDoc} - */ - @Override - public boolean isLinkExcepted(URI link) { - return false; - } - - // - // INTERFACE LinkEnabledCallback - // - - /** - * {@inheritDoc} - */ - @Override - public boolean isEnabled(ToadletContext toadletContext) { - return !isFullAccessOnly(); - } - - /** - * Exception that can be thrown to signal that a subclassed {@link Page} - * wants to redirect the user during the - * {@link FreenetTemplatePage#processTemplate(FreenetRequest, TemplateContext)} - * method call. - * - * @author David ‘Bombe’ Roden - */ - public static class RedirectException extends Exception { - - /** The target to redirect to. */ - private final String target; - - /** - * Creates a new redirect exception. - * - * @param target - * The target of the redirect - */ - public RedirectException(String target) { - this.target = target; - } - - /** - * Returns the target to redirect to. - * - * @return The target to redirect to - */ - public String getTarget() { - return target; - } - - @Override - public String toString() { - return format("RedirectException{target='%s'}", target); - } - - } - -}