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;
/**
*
* @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);
HTTP,
/** Link is HTTPS. */
- HTTPS;
+ HTTPS,
- }
-
- /** The template factory. */
- private final TemplateFactory templateFactory;
+ /** Link is a Sone. */
+ SONE,
- /** The Sone that posted the currently parsed text. */
- private Sone postingSone;
+ /** Link is a post. */
+ POST,
- /**
- * Creates a new freenet link parser.
- *
- * @param templateFactory
- * The template factory
- */
- public FreenetLinkParser(TemplateFactory templateFactory) {
- this.templateFactory = templateFactory;
}
- //
- // ACCESSORS
- //
+ /** The core. */
+ private final Core core;
+
+ /** The template factory. */
+ private final TemplateContextFactory templateContextFactory;
/**
- * Sets the Sone that posted the text that will be parsed in the next call
- * to {@link #parse(Reader)}. You need to synchronize calling this method
- * and {@link #parse(Reader)}!
+ * Creates a new freenet link parser.
*
- * @param sone
- * The Sone that posted the text
+ * @param core
+ * The core
+ * @param templateContextFactory
+ * The template context factory
*/
- public void setPostingSone(Sone sone) {
- postingSone = sone;
+ 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;
+
+ /* filter http(s) links to own node. */
+ String hostHeader = (context.getRequest() != null) ? context.getRequest().getHttpRequest().getHeader("host") : null;
+ logger.log(Level.FINEST, "hostHeader: %s", hostHeader);
+ if (hostHeader != null) {
+ for (String toRemove : new String[] { "http://" + hostHeader + "/", "https://" + hostHeader + "/", "http://" + hostHeader, "https://" + hostHeader }) {
+ while (line.indexOf(toRemove) != -1) {
+ line = line.replace(toRemove, "");
+ }
+ }
+ }
+
while (line.length() > 0) {
int nextKsk = line.indexOf("KSK@");
int nextChk = line.indexOf("CHK@");
int nextUsk = line.indexOf("USK@");
int nextHttp = line.indexOf("http://");
int nextHttps = line.indexOf("https://");
- if ((nextKsk == -1) && (nextChk == -1) && (nextSsk == -1) && (nextUsk == -1) && (nextHttp == -1) && (nextHttps == -1)) {
- parts.add(createPlainTextPart(line));
+ 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 = 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: %s", link);
logger.log(Level.FINEST, "Next: %d, CHK: %d, SSK: %d, USK: %d", new Object[] { next, nextChk, nextSsk, nextUsk });
- if (linkType == LinkType.KSK) {
- name = link.substring(4);
- } else if ((linkType == LinkType.CHK) || (linkType == LinkType.SSK) || (linkType == LinkType.USK)) {
- if (name.indexOf('/') > -1) {
- if (!name.endsWith("/")) {
- name = name.substring(name.lastIndexOf('/') + 1);
- } else {
- if (name.indexOf('/') != name.lastIndexOf('/')) {
- name = name.substring(name.lastIndexOf('/', name.lastIndexOf('/') - 1));
- } else {
- /* shorten to 5 chars. */
- name = name.substring(4, 9);
- }
- }
- }
+
+ 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('?'));
}
- boolean fromPostingSone = false;
- if ((linkType == LinkType.SSK) || (linkType == LinkType.USK)) {
- try {
- new FreenetURI(link);
- fromPostingSone = link.substring(4, 47).equals(postingSone.getId());
- parts.add(fromPostingSone ? createTrustedFreenetLinkPart(link, name) : createFreenetLinkPart(link, name));
- } catch (MalformedURLException mue1) {
- /* it’s not a valid link. */
- parts.add(createPlainTextPart(link));
+ if (name.endsWith("/")) {
+ name = name.substring(0, name.length() - 1);
+ }
+ try {
+ uri = new FreenetURI(name);
+ name = uri.lastMetaString();
+ if (name == null) {
+ name = uri.getDocName();
}
- } else {
+ if (name == null) {
+ name = link.substring(0, Math.min(9, link.length()));
+ }
+ boolean fromPostingSone = ((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);
}
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) && (post.getSone() != 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));
+ }
}
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);
}
/**
* @return The part that displays the link
*/
private Part createInternetLinkPart(String link, String name) {
- return new TemplatePart(templateFactory.createTemplate(new StringReader("<a class=\"internet\" href=\"/<% link|html>\" title=\"<% link|html>\"><% name|html></a>"))).set("link", link).set("name", 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);
}
/**
* @return The part that displays the link
*/
private Part createFreenetLinkPart(String link, String name) {
- return new TemplatePart(templateFactory.createTemplate(new StringReader("<a class=\"freenet\" href=\"/<% link|html>\" title=\"<% link|html>\"><% name|html></a>"))).set("link", link).set("name", 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);
}
/**
* @return The part that displays the link
*/
private Part createTrustedFreenetLinkPart(String link, String name) {
- return new TemplatePart(templateFactory.createTemplate(new StringReader("<a class=\"freenet-trusted\" href=\"/<% link|html>\" title=\"<% link|html>\"><% name|html></a>"))).set("link", link).set("name", 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 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 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);
}
}