From 6e93465f7005bfbf63b064d0c16d1b509cf3a682 Mon Sep 17 00:00:00 2001
From: Andreas Schneider <asn@cynapses.org>
Date: Sat, 28 Aug 2010 11:27:19 +0200
Subject: example: Added a python ssh client.

---
 examples/sshclient.py | 98 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 98 insertions(+)
 create mode 100755 examples/sshclient.py

diff --git a/examples/sshclient.py b/examples/sshclient.py
new file mode 100755
index 00000000..ce9d5c8b
--- /dev/null
+++ b/examples/sshclient.py
@@ -0,0 +1,98 @@
+#!/usr/bin/env python
+
+import sys
+from sys import stderr
+from optparse import OptionParser
+
+import ssh
+
+def verify_server(session):
+    state = session.isServerKnown()
+
+    # TODO Correctly check for server
+    if state != ssh.SSH_SERVER_KNOWN_OK:
+        return False
+
+    return True
+
+def authenticate(session):
+    state = session.userauthAutopubkey()
+
+    if state != ssh.SSH_AUTH_SUCCESS:
+        return False
+
+    return True
+
+def connect(host, port):
+    session = ssh.Session()
+
+    print "Trying to connect to " + host + ":" + str(port)
+
+    session.setOption(ssh.SSH_OPTIONS_HOST, host)
+    session.setOption(ssh.SSH_OPTIONS_PORT, port)
+
+    session.connect()
+    known = session.isServerKnown()
+
+    if not verify_server(session):
+        session.disconnect()
+        return None
+
+    print "Server is known"
+
+    if not authenticate(session):
+        session.disconnect()
+        return None
+
+    return session
+
+def execute(session):
+    channel = ssh.Channel(session)
+
+    channel.openSession()
+
+    print 'Execute: ps aux'
+    channel.requestExec('ps aux')
+
+#    buf = ''
+#    while channel.read(buf, 1024) > 0:
+#        print buf
+
+    channel.sendEof()
+    channel.close()
+
+def parse_command_line(args, usage):
+    parser = OptionParser(usage)
+
+    parser.add_option("-p", "--port", dest="port", type="int",
+                      help="The port to connect to")
+
+    return parser.parse_args(args)
+
+def main(argv):
+    usage = "Usage: sshclient.py [options] host"
+    port = 22
+
+    (options, args) = parse_command_line(args = argv, usage = usage)
+
+    if len(args) < 2:
+        print >> stderr, usage
+        return 1
+
+    host = args[1]
+
+    if options.port:
+        port = options.port
+
+    session = connect(host, port)
+    if not session:
+        return 1
+
+    execute(session)
+
+    session.disconnect()
+
+    return 0
+
+if __name__ == "__main__":
+    sys.exit(main(sys.argv))
-- 
cgit v1.2.3