1 files changed, 88 insertions, 0 deletions
diff --git a/transports/scramblesuit/base.go b/transports/scramblesuit/base.go
new file mode 100644
index 0000000..711c046
--- /dev/null
+++ b/transports/scramblesuit/base.go
@@ -0,0 +1,88 @@
+/*
+ * Copyright (c) 2015, Yawning Angel <yawning at torproject dot org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *  * Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ *
+ *  * Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+// Package scramblesuit provides an implementation of the ScrambleSuit
+// obfuscation protocol.  The implementation is client only.
+package scramblesuit
+
+import (
+	"fmt"
+	"net"
+
+	"git.torproject.org/pluggable-transports/goptlib.git"
+	"git.torproject.org/pluggable-transports/obfs4.git/transports/base"
+)
+
+const transportName = "scramblesuit"
+
+// Transport is the ScrambleSuit implementation of the base.Transport interface.
+type Transport struct{}
+
+// Name returns the name of the ScrambleSuit transport protocol.
+func (t *Transport) Name() string {
+	return transportName
+}
+
+// ClientFactory returns a new ssClientFactory instance.
+func (t *Transport) ClientFactory(stateDir string) (base.ClientFactory, error) {
+	tStore, err := loadTicketStore(stateDir)
+	if err != nil {
+		return nil, err
+	}
+	cf := &ssClientFactory{transport: t, ticketStore: tStore}
+	return cf, nil
+}
+
+// ServerFactory will one day return a new ssServerFactory instance.
+func (t *Transport) ServerFactory(stateDir string, args *pt.Args) (base.ServerFactory, error) {
+	// TODO: Fill this in eventually, though obfs4 is better.
+	return nil, fmt.Errorf("server not supported")
+}
+
+type ssClientFactory struct {
+	transport   base.Transport
+	ticketStore *ssTicketStore
+}
+
+func (cf *ssClientFactory) Transport() base.Transport {
+	return cf.transport
+}
+
+func (cf *ssClientFactory) ParseArgs(args *pt.Args) (interface{}, error) {
+	return newClientArgs(args)
+}
+
+func (cf *ssClientFactory) WrapConn(conn net.Conn, args interface{}) (net.Conn, error) {
+	ca, ok := args.(*ssClientArgs)
+	if !ok {
+		return nil, fmt.Errorf("invalid argument type for args")
+	}
+	return newScrambleSuitClientConn(conn, cf.ticketStore, ca)
+}
+
+var _ base.ClientFactory = (*ssClientFactory)(nil)
+var _ base.Transport = (*Transport)(nil)