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Code Issues Projects Releases Wiki Activity

Reuse UnsupportedVersionException for handshake links.

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This commit is contained in:
akwizgran
2019-04-26 11:06:33 +01:00
parent cc3486df94
commit 64aa121c9c
3 changed files with 24 additions and 6 deletions
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8
bramble-core/src/main/java/org/briarproject/bramble/contact/PendingContactFactory.java
View File

@@ -1,10 +1,18 @@
package org.briarproject.bramble.contact;
import org.briarproject.bramble.api.FormatException;
import org.briarproject.bramble.api.UnsupportedVersionException;
import org.briarproject.bramble.api.contact.PendingContact;
interface PendingContactFactory {
/**
* Creates a {@link PendingContact} from the given handshake link and alias.
*
* @throws UnsupportedVersionException If the link uses a format version
* that is not supported
* @throws FormatException If the link is invalid
*/
PendingContact createPendingContact(String link, String alias)
throws FormatException;
}

5
bramble-core/src/main/java/org/briarproject/bramble/contact/PendingContactFactoryImpl.java
View File

@@ -1,6 +1,7 @@
package org.briarproject.bramble.contact;
import org.briarproject.bramble.api.FormatException;
import org.briarproject.bramble.api.UnsupportedVersionException;
import org.briarproject.bramble.api.contact.PendingContact;
import org.briarproject.bramble.api.contact.PendingContactId;
import org.briarproject.bramble.api.contact.PendingContactState;
@@ -49,7 +50,9 @@ class PendingContactFactoryImpl implements PendingContactFactory {
if (link.startsWith("briar://")) link = link.substring(8);
byte[] base32 = Base32.decode(link, false);
if (base32.length != RAW_LINK_BYTES) throw new AssertionError();
if (base32[0] != FORMAT_VERSION) throw new FormatException();
byte version = base32[0];
if (version != FORMAT_VERSION)
throw new UnsupportedVersionException(version < FORMAT_VERSION);
byte[] publicKeyBytes = new byte[base32.length - 1];
arraycopy(base32, 1, publicKeyBytes, 0, publicKeyBytes.length);
try {