/*
- * Sone - SoneTextParser.java - Copyright © 2010–2013 David Roden
+ * Sone - SoneTextParser.java - Copyright © 2010–2015 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
package net.pterodactylus.sone.text;
+import static java.util.logging.Logger.getLogger;
+
import java.io.BufferedReader;
import java.io.IOException;
import java.io.Reader;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
-import net.pterodactylus.sone.core.PostProvider;
-import net.pterodactylus.sone.core.SoneProvider;
import net.pterodactylus.sone.data.Post;
import net.pterodactylus.sone.data.Sone;
+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 net.pterodactylus.util.logging.Logging;
+
+import com.google.common.base.Optional;
+
import freenet.keys.FreenetURI;
/**
public class SoneTextParser implements Parser<SoneTextParserContext> {
/** The logger. */
- private static final Logger logger = Logging.getLogger(SoneTextParser.class);
+ private static final Logger logger = getLogger(SoneTextParser.class.getName());
/** Pattern to detect whitespace. */
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]");
*/
private enum LinkType {
- /** Link is a KSK. */
- KSK("KSK@"),
-
- /** Link is a CHK. */
- CHK("CHK@"),
-
- /** Link is an SSK. */
- SSK("SSK@"),
-
- /** Link is a USK. */
- USK("USK@"),
-
- /** Link is HTTP. */
- HTTP("http://"),
-
- /** Link is HTTPS. */
- HTTPS("https://"),
-
- /** Link is a Sone. */
- SONE("sone://"),
-
- /** Link is a post. */
- POST("post://");
+ KSK("KSK@", true),
+ CHK("CHK@", true),
+ SSK("SSK@", true),
+ USK("USK@", true),
+ HTTP("http://", false),
+ HTTPS("https://", false),
+ SONE("sone://", false),
+ POST("post://", false);
- /** The scheme identifying this link type. */
private final String scheme;
+ private final boolean freenetLink;
- /**
- * Creates a new link type identified by the given scheme.
- *
- * @param scheme
- * The scheme of the link type
- */
- private LinkType(String scheme) {
+ LinkType(String scheme, boolean freenetLink) {
this.scheme = scheme;
+ this.freenetLink = freenetLink;
}
/**
return scheme;
}
+ public boolean isFreenetLink() {
+ return freenetLink;
+ }
+
}
/** The Sone provider. */
*/
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@");
- 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)) {
+ Optional<NextLink> nextLink = NextLink.findNextLink(line);
+ if (!nextLink.isPresent()) {
if (lineComplete && !lastLineEmpty) {
parts.add(new PlainTextPart("\n" + line));
} else {
}
break;
}
- int next = Integer.MAX_VALUE;
- LinkType linkType = null;
- if ((nextKsk > -1) && (nextKsk < next)) {
- next = nextKsk;
- linkType = LinkType.KSK;
- }
- if ((nextChk > -1) && (nextChk < next)) {
- next = nextChk;
- linkType = LinkType.CHK;
- }
- if ((nextSsk > -1) && (nextSsk < next)) {
- next = nextSsk;
- linkType = LinkType.SSK;
- }
- if ((nextUsk > -1) && (nextUsk < next)) {
- 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;
- }
+ LinkType linkType = nextLink.get().getLinkType();
+ int next = nextLink.get().getPosition();
/* cut off “freenet:” from before keys. */
- if (((linkType == LinkType.KSK) || (linkType == LinkType.CHK) || (linkType == LinkType.SSK) || (linkType == LinkType.USK)) && (next >= 8) && (line.substring(next - 8, next).equals("freenet:"))) {
+ if (linkType.isFreenetLink() && (next >= 8) && (line.substring(next - 8, next).equals("freenet:"))) {
next -= 8;
line = line.substring(0, next) + line.substring(next + 8);
}
if (next > 0) {
parts.add(new PlainTextPart(line.substring(0, next)));
line = line.substring(next);
- next = 0;
}
lineComplete = false;
String link = line.substring(0, nextSpace);
String name = link;
logger.log(Level.FINER, String.format("Found link: %s", link));
- logger.log(Level.FINEST, String.format("CHK: %d, SSK: %d, USK: %d", nextChk, nextSsk, nextUsk));
/* if there is no text after the scheme, it’s not a link! */
if (link.equals(linkType.getScheme())) {
if (linkType == LinkType.SONE) {
if (line.length() >= (7 + 43)) {
String soneId = line.substring(7, 50);
- Sone sone = soneProvider.getSone(soneId, false);
- if (sone == null) {
+ Optional<Sone> sone = soneProvider.getSone(soneId);
+ if (!sone.isPresent()) {
/*
* don’t use create=true above, we don’t want
* the empty shell.
*/
- sone = new Sone(soneId, false);
+ sone = Optional.<Sone>of(new IdOnlySone(soneId));
}
- parts.add(new SonePart(sone));
+ parts.add(new SonePart(sone.get()));
line = line.substring(50);
} else {
parts.add(new PlainTextPart(line));
if (linkType == LinkType.POST) {
if (line.length() >= (7 + 36)) {
String postId = line.substring(7, 43);
- Post post = postProvider.getPost(postId, false);
- if ((post != null) && (post.getSone() != null)) {
- parts.add(new PostPart(post));
+ Optional<Post> post = postProvider.getPost(postId);
+ if (post.isPresent()) {
+ parts.add(new PostPart(post.get()));
} else {
parts.add(new PlainTextPart(line.substring(0, 43)));
}
continue;
}
- if ((linkType == LinkType.KSK) || (linkType == LinkType.CHK) || (linkType == LinkType.SSK) || (linkType == LinkType.USK)) {
+ if (linkType.isFreenetLink()) {
FreenetURI uri;
if (name.indexOf('?') > -1) {
name = name.substring(0, name.indexOf('?'));
}
for (int partIndex = parts.size() - 1; partIndex >= 0; --partIndex) {
Part part = parts.getPart(partIndex);
- if (!(part instanceof PlainTextPart) || !"\n".equals(((PlainTextPart) part).getText())) {
+ if (!(part instanceof PlainTextPart) || !"\n".equals(part.getText())) {
break;
}
parts.removePart(partIndex);
return parts;
}
+ private static class NextLink {
+
+ private final int position;
+ private final LinkType linkType;
+
+ private NextLink(int position, LinkType linkType) {
+ this.position = position;
+ this.linkType = linkType;
+ }
+
+ public int getPosition() {
+ return position;
+ }
+
+ public LinkType getLinkType() {
+ return linkType;
+ }
+
+ public static Optional<NextLink> findNextLink(String line) {
+ int earliestLinkPosition = Integer.MAX_VALUE;
+ LinkType linkType = null;
+ for (LinkType possibleLinkType : LinkType.values()) {
+ int nextLinkPosition = line.indexOf(possibleLinkType.getScheme());
+ if (nextLinkPosition > -1) {
+ if (nextLinkPosition < earliestLinkPosition) {
+ earliestLinkPosition = nextLinkPosition;
+ linkType = possibleLinkType;
+ }
+ }
+ }
+ return earliestLinkPosition < Integer.MAX_VALUE ?
+ Optional.of(new NextLink(earliestLinkPosition, linkType)) : Optional.<NextLink>absent();
+ }
+
+ }
+
}
projects / Sone.git / blobdiff