diff options
| -rw-r--r-- | src/main/java/eu/siacs/conversations/xmpp/jid/InvalidJidException.java | 48 | ||||
| -rw-r--r-- | src/main/java/eu/siacs/conversations/xmpp/jid/Jid.java | 18 |
2 files changed, 57 insertions, 9 deletions
diff --git a/src/main/java/eu/siacs/conversations/xmpp/jid/InvalidJidException.java b/src/main/java/eu/siacs/conversations/xmpp/jid/InvalidJidException.java new file mode 100644 index 00000000..f1855263 --- /dev/null +++ b/src/main/java/eu/siacs/conversations/xmpp/jid/InvalidJidException.java @@ -0,0 +1,48 @@ +package eu.siacs.conversations.xmpp.jid; + +public class InvalidJidException extends Exception { + + // This is probably not the "Java way", but the "Java way" means we'd have a ton of extra tiny, + // annoying classes floating around. I like this. + public final static String INVALID_LENGTH = "JID must be between 0 and 3071 characters"; + public final static String INVALID_PART_LENGTH = "JID part must be between 0 and 1023 characters"; + public final static String INVALID_CHARACTER = "JID contains an invalid character"; + public final static String STRINGPREP_FAIL = "The STRINGPREP operation has failed for the given JID"; + + /** + * Constructs a new {@code Exception} that includes the current stack trace. + */ + public InvalidJidException() { + } + + /** + * Constructs a new {@code Exception} with the current stack trace and the + * specified detail message. + * + * @param detailMessage the detail message for this exception. + */ + public InvalidJidException(final String detailMessage) { + super(detailMessage); + } + + /** + * Constructs a new {@code Exception} with the current stack trace, the + * specified detail message and the specified cause. + * + * @param detailMessage the detail message for this exception. + * @param throwable the cause of this exception. + */ + public InvalidJidException(final String detailMessage, final Throwable throwable) { + super(detailMessage, throwable); + } + + /** + * Constructs a new {@code Exception} with the current stack trace and the + * specified cause. + * + * @param throwable the cause of this exception. + */ + public InvalidJidException(final Throwable throwable) { + super(throwable); + } +} diff --git a/src/main/java/eu/siacs/conversations/xmpp/jid/Jid.java b/src/main/java/eu/siacs/conversations/xmpp/jid/Jid.java index abb2eef3..67105d89 100644 --- a/src/main/java/eu/siacs/conversations/xmpp/jid/Jid.java +++ b/src/main/java/eu/siacs/conversations/xmpp/jid/Jid.java @@ -10,8 +10,6 @@ import gnu.inet.encoding.StringprepException; */ public final class Jid { - public final static class InvalidJidException extends Exception { } - private final String localpart; private final String domainpart; private final String resourcepart; @@ -53,11 +51,13 @@ public final class Jid { final int slashCount = jid.length() - jid.replace("/", "").length(); // Throw an error if there's anything obvious wrong with the JID... + if (jid.isEmpty() || jid.length() > 3071) { + throw new InvalidJidException(InvalidJidException.INVALID_LENGTH); + } if (atCount > 1 || slashCount > 1 || - jid.length() == 0 || jid.length() > 3071 || jid.startsWith("@") || jid.endsWith("@") || jid.startsWith("/") || jid.endsWith("/")) { - throw new InvalidJidException(); + throw new InvalidJidException(InvalidJidException.INVALID_CHARACTER); } String finaljid; @@ -69,10 +69,10 @@ public final class Jid { try { localpart = Stringprep.nodeprep(lp); } catch (final StringprepException e) { - throw new InvalidJidException(); + throw new InvalidJidException(InvalidJidException.STRINGPREP_FAIL, e); } if (localpart.isEmpty() || localpart.length() > 1023) { - throw new InvalidJidException(); + throw new InvalidJidException(InvalidJidException.INVALID_PART_LENGTH); } domainpartStart = atLoc; finaljid = lp + "@"; @@ -89,10 +89,10 @@ public final class Jid { try { resourcepart = Stringprep.resourceprep(rp); } catch (final StringprepException e) { - throw new InvalidJidException(); + throw new InvalidJidException(InvalidJidException.STRINGPREP_FAIL, e); } if (resourcepart.isEmpty() || resourcepart.length() > 1023) { - throw new InvalidJidException(); + throw new InvalidJidException(InvalidJidException.INVALID_PART_LENGTH); } dp = jid.substring(domainpartStart, slashLoc); finaljid = finaljid + dp + "/" + rp; @@ -111,7 +111,7 @@ public final class Jid { // TODO: Find a proper domain validation library; validate individual parts, separators, etc. if (domainpart.isEmpty() || domainpart.length() > 1023) { - throw new InvalidJidException(); + throw new InvalidJidException(InvalidJidException.INVALID_PART_LENGTH); } this.displayjid = finaljid; |