import java.io.IOException;
import java.io.Reader;
import java.io.StringReader;
+import java.net.MalformedURLException;
import java.util.logging.Level;
import java.util.logging.Logger;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
+import net.pterodactylus.sone.core.Core;
+import net.pterodactylus.sone.data.Post;
+import net.pterodactylus.sone.data.Sone;
+import net.pterodactylus.sone.template.SoneAccessor;
import net.pterodactylus.util.logging.Logging;
-import net.pterodactylus.util.template.TemplateFactory;
+import net.pterodactylus.util.template.TemplateContextFactory;
+import net.pterodactylus.util.template.TemplateParser;
+import freenet.keys.FreenetURI;
/**
* {@link Parser} implementation that can recognize Freenet URIs.
*
* @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
*/
-public class FreenetLinkParser implements Parser {
+public class FreenetLinkParser implements Parser<FreenetLinkParserContext> {
/** The logger. */
private static final Logger logger = Logging.getLogger(FreenetLinkParser.class);
/** Pattern to detect whitespace. */
- private static final Pattern whitespacePattern = Pattern.compile("[\\p{javaWhitespace}]");
+ private static final Pattern whitespacePattern = Pattern.compile("[\\u000a\u0020\u00a0\u1680\u180e\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200a\u200b\u200c\u200d\u202f\u205f\u2060\u2800\u3000]");
/**
* Enumeration for all recognized link types.
SSK,
/** Link is a USK. */
- USK
+ USK,
+
+ /** Link is HTTP. */
+ HTTP,
+
+ /** Link is HTTPS. */
+ HTTPS,
+
+ /** Link is a Sone. */
+ SONE,
+
+ /** Link is a post. */
+ POST,
}
+ /** The core. */
+ private final Core core;
+
/** The template factory. */
- private final TemplateFactory templateFactory;
+ private final TemplateContextFactory templateContextFactory;
/**
* Creates a new freenet link parser.
*
- * @param templateFactory
- * The template factory
+ * @param core
+ * The core
+ * @param templateContextFactory
+ * The template context factory
*/
- public FreenetLinkParser(TemplateFactory templateFactory) {
- this.templateFactory = templateFactory;
+ public FreenetLinkParser(Core core, TemplateContextFactory templateContextFactory) {
+ this.core = core;
+ this.templateContextFactory = templateContextFactory;
}
//
* {@inheritDoc}
*/
@Override
- public Part parse(Reader source) throws IOException {
+ public Part parse(FreenetLinkParserContext context, Reader source) throws IOException {
PartContainer parts = new PartContainer();
BufferedReader bufferedReader = (source instanceof BufferedReader) ? (BufferedReader) source : new BufferedReader(source);
String line;
+ boolean lastLineEmpty = true;
+ int emptyLines = 0;
while ((line = bufferedReader.readLine()) != null) {
- line = line.trim() + "\n";
+ if (line.trim().length() == 0) {
+ if (lastLineEmpty) {
+ continue;
+ }
+ parts.add(createPlainTextPart("\n"));
+ ++emptyLines;
+ lastLineEmpty = emptyLines == 2;
+ continue;
+ }
+ emptyLines = 0;
+ boolean lineComplete = true;
while (line.length() > 0) {
int nextKsk = line.indexOf("KSK@");
int nextChk = line.indexOf("CHK@");
int nextSsk = line.indexOf("SSK@");
int nextUsk = line.indexOf("USK@");
- if ((nextKsk == -1) && (nextChk == -1) && (nextSsk == -1) && (nextUsk == -1)) {
- parts.add(createPlainTextPart(line));
+ int nextHttp = line.indexOf("http://");
+ int nextHttps = line.indexOf("https://");
+ int nextSone = line.indexOf("sone://");
+ int nextPost = line.indexOf("post://");
+ if ((nextKsk == -1) && (nextChk == -1) && (nextSsk == -1) && (nextUsk == -1) && (nextHttp == -1) && (nextHttps == -1) && (nextSone == -1) && (nextPost == -1)) {
+ if (lineComplete && !lastLineEmpty) {
+ parts.add(createPlainTextPart("\n" + line));
+ } else {
+ parts.add(createPlainTextPart(line));
+ }
break;
}
int next = Integer.MAX_VALUE;
next = nextUsk;
linkType = LinkType.USK;
}
+ if ((nextHttp > -1) && (nextHttp < next)) {
+ next = nextHttp;
+ linkType = LinkType.HTTP;
+ }
+ if ((nextHttps > -1) && (nextHttps < next)) {
+ next = nextHttps;
+ linkType = LinkType.HTTPS;
+ }
+ if ((nextSone > -1) && (nextSone < next)) {
+ next = nextSone;
+ linkType = LinkType.SONE;
+ }
+ if ((nextPost > -1) && (nextPost < next)) {
+ next = nextPost;
+ linkType = LinkType.POST;
+ }
if ((next >= 8) && (line.substring(next - 8, next).equals("freenet:"))) {
next -= 8;
line = line.substring(0, next) + line.substring(next + 8);
Matcher matcher = whitespacePattern.matcher(line);
int nextSpace = matcher.find(next) ? matcher.start() : line.length();
if (nextSpace > (next + 4)) {
- parts.add(createPlainTextPart(line.substring(0, next)));
+ if (!lastLineEmpty && lineComplete) {
+ parts.add(createPlainTextPart("\n" + line.substring(0, next)));
+ } else {
+ parts.add(createPlainTextPart(line.substring(0, next)));
+ }
String link = line.substring(next, nextSpace);
String name = link;
- logger.log(Level.FINER, "Found link: " + link);
+ logger.log(Level.FINER, "Found link: %s", link);
logger.log(Level.FINEST, "Next: %d, CHK: %d, SSK: %d, USK: %d", new Object[] { next, nextChk, nextSsk, nextUsk });
- if (((linkType == LinkType.CHK) || (linkType == LinkType.SSK) || (linkType == LinkType.USK)) && (link.length() > 98) && (link.charAt(47) == ',') && (link.charAt(91) == ',') && (link.charAt(99) == '/')) {
- name = link.substring(0, 47) + "…" + link.substring(99);
+
+ if ((linkType == LinkType.KSK) || (linkType == LinkType.CHK) || (linkType == LinkType.SSK) || (linkType == LinkType.USK)) {
+ FreenetURI uri;
+ if (name.indexOf('?') > -1) {
+ name = name.substring(0, name.indexOf('?'));
+ }
+ if (name.endsWith("/")) {
+ name = name.substring(0, name.length() - 1);
+ }
+ try {
+ uri = new FreenetURI(name);
+ name = uri.lastMetaString();
+ if (name == null) {
+ name = uri.getDocName();
+ }
+ if (name == null) {
+ name = link.substring(0, Math.min(9, link.length()));
+ }
+ boolean fromPostingSone = (context.getPostingSone() != null) && ((linkType == LinkType.SSK) || (linkType == LinkType.USK)) && link.substring(4, Math.min(link.length(), 47)).equals(context.getPostingSone().getId());
+ parts.add(fromPostingSone ? createTrustedFreenetLinkPart(link, name) : createFreenetLinkPart(link, name));
+ } catch (MalformedURLException mue1) {
+ /* not a valid link, insert as plain text. */
+ parts.add(createPlainTextPart(link));
+ } catch (NullPointerException npe1) {
+ /* FreenetURI sometimes throws these, too. */
+ parts.add(createPlainTextPart(link));
+ } catch (ArrayIndexOutOfBoundsException aioobe1) {
+ /* oh, and these, too. */
+ parts.add(createPlainTextPart(link));
+ }
+ } else if ((linkType == LinkType.HTTP) || (linkType == LinkType.HTTPS)) {
+ name = link.substring(linkType == LinkType.HTTP ? 7 : 8);
+ int firstSlash = name.indexOf('/');
+ int lastSlash = name.lastIndexOf('/');
+ if ((lastSlash - firstSlash) > 3) {
+ name = name.substring(0, firstSlash + 1) + "…" + name.substring(lastSlash);
+ }
+ if (name.endsWith("/")) {
+ name = name.substring(0, name.length() - 1);
+ }
+ if (((name.indexOf('/') > -1) && (name.indexOf('.') < name.lastIndexOf('.', name.indexOf('/'))) || ((name.indexOf('/') == -1) && (name.indexOf('.') < name.lastIndexOf('.')))) && name.startsWith("www.")) {
+ name = name.substring(4);
+ }
+ if (name.indexOf('?') > -1) {
+ name = name.substring(0, name.indexOf('?'));
+ }
+ link = "?_CHECKED_HTTP_=" + link;
+ parts.add(createInternetLinkPart(link, name));
+ } else if (linkType == LinkType.SONE) {
+ String soneId = link.substring(7);
+ Sone sone = core.getSone(soneId, false);
+ if (sone != null) {
+ parts.add(createInSoneLinkPart("viewSone.html?sone=" + soneId, SoneAccessor.getNiceName(sone)));
+ } else {
+ parts.add(createPlainTextPart(link));
+ }
+ } else if (linkType == LinkType.POST) {
+ String postId = link.substring(7);
+ Post post = core.getPost(postId, false);
+ if (post != null) {
+ String postText = post.getText();
+ postText = postText.substring(0, Math.min(postText.length(), 20)) + "…";
+ Sone postSone = post.getSone();
+ parts.add(createInSoneLinkPart("viewPost.html?post=" + postId, postText, (postSone == null) ? postText : SoneAccessor.getNiceName(post.getSone())));
+ } else {
+ parts.add(createPlainTextPart(link));
+ }
}
- parts.add(createLinkPart(link, name));
line = line.substring(nextSpace);
} else {
- parts.add(createPlainTextPart(line.substring(0, next + 4)));
+ if (!lastLineEmpty && lineComplete) {
+ parts.add(createPlainTextPart("\n" + line.substring(0, next + 4)));
+ } else {
+ parts.add(createPlainTextPart(line.substring(0, next + 4)));
+ }
line = line.substring(next + 4);
}
+ lineComplete = false;
}
+ lastLineEmpty = false;
+ }
+ for (int partIndex = parts.size() - 1; partIndex >= 0; --partIndex) {
+ if (!parts.getPart(partIndex).toString().equals("\n")) {
+ break;
+ }
+ parts.removePart(partIndex);
}
return parts;
}
* @return The part that displays the given text
*/
private Part createPlainTextPart(String text) {
- return new TemplatePart(templateFactory.createTemplate(new StringReader("<% text|html>"))).set("text", text);
+ return new TemplatePart(templateContextFactory, TemplateParser.parse(new StringReader("<% text|html>"))).set("text", text);
+ }
+
+ /**
+ * Creates a new part based on a template that links to a site within the
+ * normal internet.
+ *
+ * @param link
+ * The target of the link
+ * @param name
+ * The name of the link
+ * @return The part that displays the link
+ */
+ private Part createInternetLinkPart(String link, String name) {
+ return new TemplatePart(templateContextFactory, TemplateParser.parse(new StringReader("<a class=\"internet\" href=\"/<% link|html>\" title=\"<% link|html>\"><% name|html></a>"))).set("link", link).set("name", name);
+ }
+
+ /**
+ * Creates a new part based on a template that links to a site within
+ * freenet.
+ *
+ * @param link
+ * The target of the link
+ * @param name
+ * The name of the link
+ * @return The part that displays the link
+ */
+ private Part createFreenetLinkPart(String link, String name) {
+ return new TemplatePart(templateContextFactory, TemplateParser.parse(new StringReader("<a class=\"freenet\" href=\"/<% link|html>\" title=\"<% link|html>\"><% name|html></a>"))).set("link", link).set("name", name);
+ }
+
+ /**
+ * Creates a new part based on a template that links to a page in the
+ * poster’s keyspace.
+ *
+ * @param link
+ * The target of the link
+ * @param name
+ * The name of the link
+ * @return The part that displays the link
+ */
+ private Part createTrustedFreenetLinkPart(String link, String name) {
+ return new TemplatePart(templateContextFactory, TemplateParser.parse(new StringReader("<a class=\"freenet-trusted\" href=\"/<% link|html>\" title=\"<% link|html>\"><% name|html></a>"))).set("link", link).set("name", name);
+ }
+
+ /**
+ * Creates a new part based on a template that links to a page in Sone.
+ *
+ * @param link
+ * The target of the link
+ * @param name
+ * The name of the link
+ * @return The part that displays the link
+ */
+ private Part createInSoneLinkPart(String link, String name) {
+ return createInSoneLinkPart(link, name, name);
}
/**
- * Creates a new link part based on a template.
+ * Creates a new part based on a template that links to a page in Sone.
*
* @param link
* The target of the link
* @param name
* The name of the link
+ * @param title
+ * The title attribute of the link
* @return The part that displays the link
*/
- private Part createLinkPart(String link, String name) {
- return new TemplatePart(templateFactory.createTemplate(new StringReader("<a href=\"/<% link|html>\"><% name|html></a>"))).set("link", link).set("name", name);
+ private Part createInSoneLinkPart(String link, String name, String title) {
+ return new TemplatePart(templateContextFactory, TemplateParser.parse(new StringReader("<a class=\"in-sone\" href=\"<%link|html>\" title=\"<%title|html>\"><%name|html></a>"))).set("link", link).set("name", name).set("title", title);
}
}
projects / Sone.git / blobdiff