Imported Upstream version 1.5.2upstream/1.5.2

1 files changed, 128 insertions, 0 deletions

diff --git a/demo_simple.py b/demo_simple.py
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+#!/usr/bin/python
+
+# Copyright (C) 2003-2005 Robey Pointer <robey@lag.net>
+#
+# This file is part of paramiko.
+#
+# Paramiko is free software; you can redistribute it and/or modify it under the
+# terms of the GNU Lesser General Public License as published by the Free
+# Software Foundation; either version 2.1 of the License, or (at your option)
+# any later version.
+#
+# Paramiko is distrubuted in the hope that it will be useful, but WITHOUT ANY
+# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+# A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more
+# details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with Paramiko; if not, write to the Free Software Foundation, Inc.,
+# 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA.
+
+
+# ----- WINDOWS USERS PLEASE NOTE -----
+# This demo won't work on Windows because it uses pseudo-terminals, which
+# are a posix-only feature.  check out the README file for a simpler demo.
+
+
+import sys, os, base64, getpass, socket, traceback, termios, tty, select
+import paramiko
+
+
+# setup logging
+paramiko.util.log_to_file('demo_simple.log')
+
+# get hostname
+username = ''
+if len(sys.argv) > 1:
+    hostname = sys.argv[1]
+    if hostname.find('@') >= 0:
+        username, hostname = hostname.split('@')
+else:
+    hostname = raw_input('Hostname: ')
+if len(hostname) == 0:
+    print '*** Hostname required.'
+    sys.exit(1)
+port = 22
+if hostname.find(':') >= 0:
+    hostname, portstr = hostname.split(':')
+    port = int(portstr)
+
+
+# get username
+if username == '':
+    default_username = getpass.getuser()
+    username = raw_input('Username [%s]: ' % default_username)
+    if len(username) == 0:
+        username = default_username
+password = getpass.getpass('Password for %s@%s: ' % (username, hostname))
+
+
+# get host key, if we know one
+hostkeytype = None
+hostkey = None
+try:
+    hkeys = paramiko.util.load_host_keys(os.path.expanduser('~/.ssh/known_hosts'))
+except IOError:
+    try:
+        hkeys = paramiko.util.load_host_keys(os.path.expanduser('~/ssh/known_hosts'))
+    except IOError:
+        print '*** Unable to open host keys file'
+        hkeys = {}
+
+if hkeys.has_key(hostname):
+    hostkeytype = hkeys[hostname].keys()[0]
+    hostkey = hkeys[hostname][hostkeytype]
+    print 'Using host key of type %s' % hostkeytype
+
+
+# now, connect and use paramiko Transport to negotiate SSH2 across the connection
+try:
+    t = paramiko.Transport((hostname, port))
+    t.connect(username=username, password=password, hostkey=hostkey)
+    chan = t.open_session()
+    chan.get_pty()
+    chan.invoke_shell()
+    print '*** Here we go!'
+    print
+
+    try:
+        oldtty = termios.tcgetattr(sys.stdin)
+        tty.setraw(sys.stdin.fileno())
+        tty.setcbreak(sys.stdin.fileno())
+        chan.settimeout(0.0)
+
+        while True:
+            r, w, e = select.select([chan, sys.stdin], [], [])
+            if chan in r:
+                try:
+                    x = chan.recv(1024)
+                    if len(x) == 0:
+                        print '\r\n*** EOF\r\n',
+                        break
+                    sys.stdout.write(x)
+                    sys.stdout.flush()
+                except socket.timeout:
+                    pass
+            if sys.stdin in r:
+                # FIXME: reading 1 byte at a time is incredibly dumb.
+                x = sys.stdin.read(1)
+                if len(x) == 0:
+                    print
+                    print '*** Bye.\r\n',
+                    break
+                chan.send(x)
+
+    finally:
+        termios.tcsetattr(sys.stdin, termios.TCSADRAIN, oldtty)
+
+    chan.close()
+    t.close()
+
+except Exception, e:
+    print '*** Caught exception: %s: %s' % (e.__class__, e)
+    traceback.print_exc()
+    try:
+        t.close()
+    except:
+        pass
+    sys.exit(1)