Prevent crash on more invalid links.

diff --git a/src/main/java/net/pterodactylus/sone/text/FreenetLinkParser.java b/src/main/java/net/pterodactylus/sone/text/FreenetLinkParser.java
index fe602c6..63f68b8 100644 (file)
--- a/src/main/java/net/pterodactylus/sone/text/FreenetLinkParser.java
+++ b/src/main/java/net/pterodactylus/sone/text/FreenetLinkParser.java
@@ -169,7 +169,7 @@ public class FreenetLinkParser implements Parser<FreenetLinkParserContext> {
                                                if ((linkType == LinkType.SSK) || (linkType == LinkType.USK)) {
                                                        try {
                                                                new FreenetURI(link);
-                                                               fromPostingSone = link.substring(4, 47).equals(context.getPostingSone().getId());
+                                                               fromPostingSone = link.substring(4, Math.min(link.length(), 47)).equals(context.getPostingSone().getId());
                                                                parts.add(fromPostingSone ? createTrustedFreenetLinkPart(link, name) : createFreenetLinkPart(link, name));
                                                        } catch (MalformedURLException mue1) {
                                                                /* it’s not a valid link. */