--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/net/java/otr4j/OtrPolicy.java	Sun Dec 05 18:43:51 2010 +0100
@@ -0,0 +1,68 @@
+/*
+ * otr4j, the open source java otr library.
+ *
+ * Distributable under LGPL license.
+ * See terms of license at gnu.org.
+ */
+package net.java.otr4j;
+
+/**
+ * 
+ * @author George Politis
+ * 
+ */
+public interface OtrPolicy {
+
+	public static final int ALLOW_V1 = 0x01;
+	public static final int ALLOW_V2 = 0x02;
+	public static final int REQUIRE_ENCRYPTION = 0x04;
+	public static final int SEND_WHITESPACE_TAG = 0x08;
+	public static final int WHITESPACE_START_AKE = 0x10;
+	public static final int ERROR_START_AKE = 0x20;
+	public static final int VERSION_MASK = (ALLOW_V1 | ALLOW_V2);
+
+	// The four old version 1 policies correspond to the following combinations
+	// of flags (adding an allowance for version 2 of the protocol):
+
+	public static final int NEVER = 0x00;
+	public static final int OPPORTUNISTIC = (ALLOW_V1 | ALLOW_V2
+			| SEND_WHITESPACE_TAG | WHITESPACE_START_AKE | ERROR_START_AKE);
+	public static final int OTRL_POLICY_MANUAL = (ALLOW_V1 | ALLOW_V2);
+	public static final int OTRL_POLICY_ALWAYS = (ALLOW_V1 | ALLOW_V2
+			| REQUIRE_ENCRYPTION | WHITESPACE_START_AKE | ERROR_START_AKE);
+	public static final int OTRL_POLICY_DEFAULT = OPPORTUNISTIC;
+
+	public abstract boolean getAllowV1();
+
+	public abstract boolean getAllowV2();
+
+	public abstract boolean getRequireEncryption();
+
+	public abstract boolean getSendWhitespaceTag();
+
+	public abstract boolean getWhitespaceStartAKE();
+
+	public abstract boolean getErrorStartAKE();
+
+	public abstract int getPolicy();
+
+	public abstract void setAllowV1(boolean value);
+
+	public abstract void setAllowV2(boolean value);
+
+	public abstract void setRequireEncryption(boolean value);
+
+	public abstract void setSendWhitespaceTag(boolean value);
+
+	public abstract void setWhitespaceStartAKE(boolean value);
+
+	public abstract void setErrorStartAKE(boolean value);
+
+	public abstract void setEnableAlways(boolean value);
+
+	public abstract boolean getEnableAlways();
+
+	public abstract void setEnableManual(boolean value);
+
+	public abstract boolean getEnableManual();
+}