Make 'zlib' compression work.

Previously all compression was the equivalent of zlib@openssh.com
since TransportConnection enforced that.

1 files changed, 35 insertions, 0 deletions

diff --git a/lib/src/main/java/com/trilead/ssh2/compression/ZlibOpenSSH.java b/lib/src/main/java/com/trilead/ssh2/compression/ZlibOpenSSH.java
new file mode 100644
index 0000000..266fff9
--- /dev/null
+++ b/lib/src/main/java/com/trilead/ssh2/compression/ZlibOpenSSH.java
@@ -0,0 +1,35 @@
+/*
+ * ConnectBot: simple, powerful, open-source SSH client for Android
+ * Copyright 2007 Kenny Root, Jeffrey Sharkey
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.trilead.ssh2.compression;
+
+/**
+ * Defines how zlib@openssh.org compression works.
+ * See 
+ * http://www.openssh.org/txt/draft-miller-secsh-compression-delayed-00.txt
+ * compression is disabled until userauth has occurred.
+ *
+ * @author Matt Johnston
+ *
+ */
+public class ZlibOpenSSH extends Zlib {
+
+	public boolean canCompressPreauth() {
+		return false;
+	}
+
+}