/*
- * Sone - SoneTextParser.java - Copyright © 2010–2015 David Roden
+ * Sone - SoneTextParser.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
import java.io.BufferedReader;
import java.io.IOException;
+import java.io.Reader;
import java.io.StringReader;
import java.net.MalformedURLException;
import java.util.logging.Level;
import net.pterodactylus.sone.data.impl.IdOnlySone;
import net.pterodactylus.sone.database.PostProvider;
import net.pterodactylus.sone.database.SoneProvider;
-import net.pterodactylus.util.io.Closer;
import com.google.common.base.Optional;
@Override
public Iterable<Part> parse(@Nonnull String source, @Nullable SoneTextParserContext context) {
PartContainer parts = new PartContainer();
- BufferedReader bufferedReader = new BufferedReader(new StringReader(source));
- try {
+ try (Reader sourceReader = new StringReader(source);
+ BufferedReader bufferedReader = new BufferedReader(sourceReader)) {
String line;
boolean lastLineEmpty = true;
int emptyLines = 0;
}
lineComplete = false;
- Matcher matcher = whitespacePattern.matcher(line);
- int nextSpace = matcher.find(0) ? matcher.start() : line.length();
- String link = line.substring(0, nextSpace);
- String name = link;
+ int endOfLink = findEndOfLink(line);
+ String link = line.substring(0, endOfLink);
logger.log(Level.FINER, String.format("Found link: %s", link));
/* if there is no text after the scheme, it’s not a link! */
continue;
}
- if (linkType == LinkType.SONE) {
- if (line.length() >= (7 + 43)) {
- String soneId = line.substring(7, 50);
- Optional<Sone> sone = soneProvider.getSone(soneId);
- if (!sone.isPresent()) {
- /*
- * don’t use create=true above, we don’t want
- * the empty shell.
- */
- sone = Optional.<Sone>of(new IdOnlySone(soneId));
- }
- parts.add(new SonePart(sone.get()));
- line = line.substring(50);
- } else {
- parts.add(new PlainTextPart(line));
- line = "";
- }
- continue;
- }
- if (linkType == LinkType.POST) {
- if (line.length() >= (7 + 36)) {
- String postId = line.substring(7, 43);
- Optional<Post> post = postProvider.getPost(postId);
- if (post.isPresent()) {
- parts.add(new PostPart(post.get()));
- } else {
- parts.add(new PlainTextPart(line.substring(0, 43)));
- }
- line = line.substring(43);
- } else {
- parts.add(new PlainTextPart(line));
- line = "";
- }
- continue;
+ switch (linkType) {
+ case SONE:
+ renderSoneLink(parts, link);
+ break;
+ case POST:
+ renderPostLink(parts, link);
+ break;
+ case KSK:
+ case CHK:
+ case SSK:
+ case USK:
+ renderFreenetLink(parts, link, linkType, context);
+ break;
+ case HTTP:
+ case HTTPS:
+ renderHttpLink(parts, link, linkType);
+ break;
}
- if (linkType.isFreenetLink()) {
- 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 = ((linkType == LinkType.SSK) || (linkType == LinkType.USK)) && (context != null) && (context.getPostingSone() != null) && link.substring(4, Math.min(link.length(), 47)).equals(context.getPostingSone().getId());
- parts.add(new FreenetLinkPart(link, name, fromPostingSone));
- } catch (MalformedURLException mue1) {
- /* not a valid link, insert as plain text. */
- parts.add(new PlainTextPart(link));
- } catch (NullPointerException npe1) {
- /* FreenetURI sometimes throws these, too. */
- parts.add(new PlainTextPart(link));
- } catch (ArrayIndexOutOfBoundsException aioobe1) {
- /* oh, and these, too. */
- parts.add(new PlainTextPart(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('?'));
- }
- parts.add(new LinkPart(link, name));
- }
- line = line.substring(nextSpace);
+ line = line.substring(endOfLink);
}
lastLineEmpty = false;
}
} catch (IOException ioe1) {
// a buffered reader around a string reader should never throw.
throw new RuntimeException(ioe1);
- } finally {
- Closer.close(bufferedReader);
}
for (int partIndex = parts.size() - 1; partIndex >= 0; --partIndex) {
Part part = parts.getPart(partIndex);
return parts;
}
+ private void renderSoneLink(PartContainer parts, String line) {
+ if (line.length() >= (7 + 43)) {
+ String soneId = line.substring(7, 50);
+ Optional<Sone> sone = soneProvider.getSone(soneId);
+ parts.add(new SonePart(sone.or(new IdOnlySone(soneId))));
+ } else {
+ parts.add(new PlainTextPart(line));
+ }
+ }
+
+ private void renderPostLink(PartContainer parts, String line) {
+ if (line.length() >= (7 + 36)) {
+ String postId = line.substring(7, 43);
+ Optional<Post> post = postProvider.getPost(postId);
+ if (post.isPresent()) {
+ parts.add(new PostPart(post.get()));
+ } else {
+ parts.add(new PlainTextPart(line.substring(0, 43)));
+ }
+ } else {
+ parts.add(new PlainTextPart(line));
+ }
+ }
+
+ private void renderFreenetLink(PartContainer parts, String link, LinkType linkType, @Nullable SoneTextParserContext context) {
+ String name = link;
+ if (name.indexOf('?') > -1) {
+ name = name.substring(0, name.indexOf('?'));
+ }
+ if (name.endsWith("/")) {
+ name = name.substring(0, name.length() - 1);
+ }
+ try {
+ FreenetURI 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 = ((linkType == LinkType.SSK) || (linkType == LinkType.USK)) && (context != null) && (context.getPostingSone() != null) && link.substring(4, Math.min(link.length(), 47)).equals(context.getPostingSone().getId());
+ parts.add(new FreenetLinkPart(link, name, fromPostingSone));
+ } catch (MalformedURLException mue1) {
+ /* not a valid link, insert as plain text. */
+ parts.add(new PlainTextPart(link));
+ } catch (NullPointerException npe1) {
+ /* FreenetURI sometimes throws these, too. */
+ parts.add(new PlainTextPart(link));
+ } catch (ArrayIndexOutOfBoundsException aioobe1) {
+ /* oh, and these, too. */
+ parts.add(new PlainTextPart(link));
+ }
+ }
+
+ private void renderHttpLink(PartContainer parts, String link, LinkType linkType) {
+ String name;
+ 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('?'));
+ }
+ parts.add(new LinkPart(link, name));
+ }
+
+ private int findEndOfLink(String line) {
+ Matcher matcher = whitespacePattern.matcher(line);
+ int endOfLink = matcher.find() ? matcher.start() : line.length();
+ while ((endOfLink > 0) && isPunctuation(line.charAt(endOfLink - 1))) {
+ endOfLink--;
+ }
+ int openParens = 0;
+ for (int i = 0; i < endOfLink; i++) {
+ switch (line.charAt(i)) {
+ case '(':
+ openParens++;
+ break;
+ case ')':
+ openParens--;
+ if (openParens < 0) {
+ return i;
+ }
+ default:
+ }
+ }
+ return endOfLink;
+ }
+
+ private static boolean isPunctuation(char character) {
+ return (character == '.') || (character == ',');
+ }
+
private static class NextLink {
private final int position;
projects / Sone.git / blobdiff