package net.pterodactylus.sone.template;
import static java.lang.String.valueOf;
-import static net.pterodactylus.sone.utils.NumberParsers.parseInt;
import java.io.IOException;
import java.io.StringReader;
-import java.io.StringWriter;
-import java.io.UnsupportedEncodingException;
-import java.io.Writer;
-import java.net.URLEncoder;
-import java.util.ArrayList;
-import java.util.List;
+import java.util.Collections;
import java.util.Map;
import net.pterodactylus.sone.core.Core;
-import net.pterodactylus.sone.data.Album;
import net.pterodactylus.sone.data.Sone;
-import net.pterodactylus.sone.text.AlbumPart;
-import net.pterodactylus.sone.text.FreenetLinkPart;
-import net.pterodactylus.sone.text.LinkPart;
import net.pterodactylus.sone.text.Part;
-import net.pterodactylus.sone.text.PlainTextPart;
-import net.pterodactylus.sone.text.PostPart;
-import net.pterodactylus.sone.text.SonePart;
import net.pterodactylus.sone.text.SoneTextParser;
import net.pterodactylus.sone.text.SoneTextParserContext;
import net.pterodactylus.sone.web.page.FreenetRequest;
import net.pterodactylus.util.template.Filter;
-import net.pterodactylus.util.template.Template;
import net.pterodactylus.util.template.TemplateContext;
-import net.pterodactylus.util.template.TemplateContextFactory;
-import net.pterodactylus.util.template.TemplateParser;
/**
- * Filter that filters a given text through a {@link SoneTextParser}.
+ * Filter that filters a given text through a {@link SoneTextParser} and returns the parsed {@link Part}s.
*
* @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
*/
public class ParserFilter implements Filter {
- /** The core. */
private final Core core;
-
- /** The link parser. */
private final SoneTextParser soneTextParser;
- /** The template context factory. */
- private final TemplateContextFactory templateContextFactory;
-
- /** The template for {@link PlainTextPart}s. */
- private static final Template plainTextTemplate = TemplateParser.parse(new StringReader("<%text|html>"));
-
- /** The template for {@link FreenetLinkPart}s. */
- private static final Template linkTemplate = TemplateParser.parse(new StringReader("<a class=\"<%cssClass|html>\" href=\"<%link|html>\" title=\"<%title|html>\"><%text|html></a>"));
-
- /**
- * Creates a new filter that runs its input through a {@link SoneTextParser}
- * .
- *
- * @param core
- * The core
- * @param templateContextFactory
- * The context factory for rendering the parts
- * @param soneTextParser
- * The Sone text parser
- */
- public ParserFilter(Core core, TemplateContextFactory templateContextFactory, SoneTextParser soneTextParser) {
+ public ParserFilter(Core core, SoneTextParser soneTextParser) {
this.core = core;
- this.templateContextFactory = templateContextFactory;
this.soneTextParser = soneTextParser;
}
@Override
public Object format(TemplateContext templateContext, Object data, Map<String, Object> parameters) {
String text = valueOf(data);
- int length = parseInt(valueOf(parameters.get("length")), -1);
- int cutOffLength = parseInt(valueOf(parameters.get("cut-off-length")), length);
Object sone = parameters.get("sone");
if (sone instanceof String) {
sone = core.getSone((String) sone).orNull();
}
FreenetRequest request = (FreenetRequest) templateContext.get("request");
SoneTextParserContext context = new SoneTextParserContext(request, (Sone) sone);
- StringWriter parsedTextWriter = new StringWriter();
try {
- Iterable<Part> parts = soneTextParser.parse(context, new StringReader(text));
- if (length > -1) {
- int allPartsLength = 0;
- List<Part> shortenedParts = new ArrayList<Part>();
- for (Part part : parts) {
- if (part instanceof PlainTextPart) {
- String longText = ((PlainTextPart) part).getText();
- if (allPartsLength < cutOffLength) {
- if ((allPartsLength + longText.length()) > cutOffLength) {
- shortenedParts.add(new PlainTextPart(longText.substring(0, cutOffLength - allPartsLength) + "…"));
- } else {
- shortenedParts.add(part);
- }
- }
- allPartsLength += longText.length();
- } else if (part instanceof LinkPart) {
- if (allPartsLength < cutOffLength) {
- shortenedParts.add(part);
- }
- allPartsLength += ((LinkPart) part).getText().length();
- } else {
- if (allPartsLength < cutOffLength) {
- shortenedParts.add(part);
- }
- }
- }
- if (allPartsLength >= length) {
- parts = shortenedParts;
- }
- }
- render(parsedTextWriter, parts);
+ return soneTextParser.parse(context, new StringReader(text));
} catch (IOException ioe1) {
- /* no exceptions in a StringReader or StringWriter, ignore. */
+ /* no exceptions in a StringReader, ignore. */
+ return Collections.<Part>emptyList();
}
- return parsedTextWriter.toString();
- }
-
- //
- // PRIVATE METHODS
- //
-
- /**
- * Renders the given parts.
- *
- * @param writer
- * The writer to render the parts to
- * @param parts
- * The parts to render
- */
- private void render(Writer writer, Iterable<Part> parts) {
- for (Part part : parts) {
- render(writer, part);
- }
- }
-
- /**
- * Renders the given part.
- *
- * @param writer
- * The writer to render the part to
- * @param part
- * The part to render
- */
- @SuppressWarnings("unchecked")
- private void render(Writer writer, Part part) {
- if (part instanceof PlainTextPart) {
- render(writer, (PlainTextPart) part);
- } else if (part instanceof FreenetLinkPart) {
- render(writer, (FreenetLinkPart) part);
- } else if (part instanceof LinkPart) {
- render(writer, (LinkPart) part);
- } else if (part instanceof SonePart) {
- render(writer, (SonePart) part);
- } else if (part instanceof PostPart) {
- render(writer, (PostPart) part);
- } else if (part instanceof AlbumPart) {
- render(writer, (AlbumPart) part);
- } else if (part instanceof Iterable<?>) {
- render(writer, (Iterable<Part>) part);
- }
- }
-
- /**
- * Renders the given plain-text part.
- *
- * @param writer
- * The writer to render the part to
- * @param plainTextPart
- * The part to render
- */
- private void render(Writer writer, PlainTextPart plainTextPart) {
- TemplateContext templateContext = templateContextFactory.createTemplateContext();
- templateContext.set("text", plainTextPart.getText());
- plainTextTemplate.render(templateContext, writer);
- }
-
- /**
- * Renders the given freenet link part.
- *
- * @param writer
- * The writer to render the part to
- * @param freenetLinkPart
- * The part to render
- */
- private void render(Writer writer, FreenetLinkPart freenetLinkPart) {
- renderLink(writer, "/" + freenetLinkPart.getLink(), freenetLinkPart.getText(), freenetLinkPart.getTitle(), freenetLinkPart.isTrusted() ? "freenet-trusted" : "freenet");
- }
-
- /**
- * Renders the given link part.
- *
- * @param writer
- * The writer to render the part to
- * @param linkPart
- * The part to render
- */
- private void render(Writer writer, LinkPart linkPart) {
- try {
- renderLink(writer, "/external-link/?_CHECKED_HTTP_=" + URLEncoder.encode(linkPart.getLink(), "UTF-8"), linkPart.getText(), linkPart.getTitle(), "internet");
- } catch (UnsupportedEncodingException uee1) {
- /* not possible for UTF-8. */
- throw new RuntimeException("The JVM does not support UTF-8 encoding!", uee1);
- }
- }
-
- /**
- * Renders the given Sone part.
- *
- * @param writer
- * The writer to render the part to
- * @param sonePart
- * The part to render
- */
- private void render(Writer writer, SonePart sonePart) {
- if ((sonePart.getSone() != null) && (sonePart.getSone().getName() != null)) {
- renderLink(writer, "viewSone.html?sone=" + sonePart.getSone().getId(), SoneAccessor.getNiceName(sonePart.getSone()), SoneAccessor.getNiceName(sonePart.getSone()), "in-sone");
- } else {
- renderLink(writer, "/WebOfTrust/ShowIdentity?id=" + sonePart.getSone().getId(), sonePart.getSone().getId(), sonePart.getSone().getId(), "in-sone");
- }
- }
-
- /**
- * Renders the given post part.
- *
- * @param writer
- * The writer to render the part to
- * @param postPart
- * The part to render
- */
- private void render(Writer writer, PostPart postPart) {
- SoneTextParser parser = new SoneTextParser(core, core, core);
- SoneTextParserContext parserContext = new SoneTextParserContext(null, postPart.getPost().getSone());
- try {
- Iterable<Part> parts = parser.parse(parserContext, new StringReader(postPart.getPost().getText()));
- StringBuilder excerpt = new StringBuilder();
- for (Part part : parts) {
- excerpt.append(part.getText());
- if (excerpt.length() > 20) {
- int lastSpace = excerpt.lastIndexOf(" ", 20);
- if (lastSpace > -1) {
- excerpt.setLength(lastSpace);
- } else {
- excerpt.setLength(20);
- }
- excerpt.append("…");
- break;
- }
- }
- renderLink(writer, "viewPost.html?post=" + postPart.getPost().getId(), excerpt.toString(),
- SoneAccessor.getNiceName(postPart.getPost().getSone()), postPart.usesDeprecatedLink() ? "internet" : "in-sone");
- } catch (IOException ioe1) {
- /* StringReader shouldn’t throw. */
- }
- }
-
- private void render(Writer writer, AlbumPart albumPart) {
- Album album = albumPart.getAlbum();
- renderLink(writer, String.format("imageBrowser.html?album=%s", album.getId()), album.getTitle(), album.getDescription(), "in-sone");
- }
-
- /**
- * Renders the given link.
- *
- * @param writer
- * The writer to render the link to
- * @param link
- * The link to render
- * @param text
- * The text of the link
- * @param title
- * The title of the link
- * @param cssClass
- * The CSS class of the link
- */
- private void renderLink(Writer writer, String link, String text, String title, String cssClass) {
- TemplateContext templateContext = templateContextFactory.createTemplateContext();
- templateContext.set("cssClass", cssClass);
- templateContext.set("link", link);
- templateContext.set("text", text);
- templateContext.set("title", title);
- linkTemplate.render(templateContext, writer);
}
}
projects / Sone.git / blobdiff