[project @ robey@master-shake.local-20060127030114-b6810c4c29964a4e]

code from mike looijmans for a windows interactive shell -- while i'm mucking around in here, clean up the demos a bit too

4 files changed, 512 insertions, 0 deletions

diff --git a/demos/demo.py b/demos/demo.py
new file mode 100755
index 00000000..18b5a983
--- /dev/null
+++ b/demos/demo.py
@@ -0,0 +1,177 @@
+#!/usr/bin/env 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.
+
+
+import base64
+import getpass
+import os
+import select
+import socket
+import sys
+import threading
+import time
+import traceback
+
+import paramiko
+import interactive
+
+
+def agent_auth(transport, username):
+    """
+    Attempt to authenticate to the given transport using any of the private
+    keys available from an SSH agent.
+    """
+    
+    agent = paramiko.Agent()
+    agent_keys = agent.get_keys()
+    if len(agent_keys) == 0:
+        return
+        
+    for key in agent_keys:
+        print 'Trying ssh-agent key %s' % paramiko.util.hexify(key.get_fingerprint()),
+        try:
+            transport.auth_publickey(username, key)
+            print '... success!'
+            return
+        except SSHException:
+            print '... nope.'
+
+
+def manual_auth(username, hostname):
+    default_auth = 'p'
+    auth = raw_input('Auth by (p)assword, (r)sa key, or (d)ss key? [%s] ' % default_auth)
+    if len(auth) == 0:
+        auth = default_auth
+
+    if auth == 'r':
+        default_path = os.path.join(os.environ['HOME'], '.ssh', 'id_rsa')
+        path = raw_input('RSA key [%s]: ' % default_path)
+        if len(path) == 0:
+            path = default_path
+        try:
+            key = paramiko.RSAKey.from_private_key_file(path)
+        except paramiko.PasswordRequiredException:
+            password = getpass.getpass('RSA key password: ')
+            key = paramiko.RSAKey.from_private_key_file(path, password)
+        t.auth_publickey(username, key)
+    elif auth == 'd':
+        default_path = os.path.join(os.environ['HOME'], '.ssh', 'id_dsa')
+        path = raw_input('DSS key [%s]: ' % default_path)
+        if len(path) == 0:
+            path = default_path
+        try:
+            key = paramiko.DSSKey.from_private_key_file(path)
+        except paramiko.PasswordRequiredException:
+            password = getpass.getpass('DSS key password: ')
+            key = paramiko.DSSKey.from_private_key_file(path, password)
+        t.auth_publickey(username, key)
+    else:
+        pw = getpass.getpass('Password for %s@%s: ' % (username, hostname))
+        t.auth_password(username, pw)
+
+
+# setup logging
+paramiko.util.log_to_file('demo.log')
+
+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)
+
+# now connect
+try:
+    sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+    sock.connect((hostname, port))
+except Exception, e:
+    print '*** Connect failed: ' + str(e)
+    traceback.print_exc()
+    sys.exit(1)
+
+try:
+    t = paramiko.Transport(sock)
+    t.start_client()
+    if not t.is_active():
+        print '*** SSH negotiation failed.'
+        sys.exit(1)
+
+    try:
+        keys = paramiko.util.load_host_keys(os.path.expanduser('~/.ssh/known_hosts'))
+    except IOError:
+        try:
+            keys = paramiko.util.load_host_keys(os.path.expanduser('~/ssh/known_hosts'))
+        except IOError:
+            print '*** Unable to open host keys file'
+            keys = {}
+
+    key = t.get_remote_server_key()
+    if not keys.has_key(hostname):
+        print '*** WARNING: Unknown host key!'
+    elif not keys[hostname].has_key(key.get_name()):
+        print '*** WARNING: Unknown host key!'
+    elif keys[hostname][key.get_name()] != key:
+        print '*** WARNING: Host key has changed!!!'
+        sys.exit(1)
+    else:
+        print '*** Host key OK.'
+
+    # get username
+    if username == '':
+        default_username = getpass.getuser()
+        username = raw_input('Username [%s]: ' % default_username)
+        if len(username) == 0:
+            username = default_username
+
+    agent_auth(t, username)
+    if not t.is_authenticated():
+        manual_auth(username, hostname)
+    if not t.is_authenticated():
+        print '*** Authentication failed. :('
+        t.close()
+        sys.exit(1)
+
+    chan = t.open_session()
+    chan.get_pty()
+    chan.invoke_shell()
+    print '*** Here we go!'
+    print
+    interactive.interactive_shell(chan)
+    chan.close()
+    t.close()
+
+except Exception, e:
+    print '*** Caught exception: ' + str(e.__class__) + ': ' + str(e)
+    traceback.print_exc()
+    try:
+        t.close()
+    except:
+        pass
+    sys.exit(1)
+
+
diff --git a/demos/demo_server.py b/demos/demo_server.py
new file mode 100755
index 00000000..599eb46a
--- /dev/null
+++ b/demos/demo_server.py
@@ -0,0 +1,138 @@
+#!/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.
+
+import sys, os, socket, threading, traceback, base64
+import paramiko
+
+# setup logging
+paramiko.util.log_to_file('demo_server.log')
+
+#host_key = paramiko.RSAKey(filename='tests/test_rsa.key')
+host_key = paramiko.DSSKey(filename='tests/test_dss.key')
+
+print 'Read key: ' + paramiko.util.hexify(host_key.get_fingerprint())
+
+
+class Server (paramiko.ServerInterface):
+    # 'data' is the output of base64.encodestring(str(key))
+    data = 'AAAAB3NzaC1yc2EAAAABIwAAAIEAyO4it3fHlmGZWJaGrfeHOVY7RWO3P9M7hpfAu7jJ2d7eothvfeuoRFtJwhUmZDluRdFyhFY/hFAh76PJKGAusIqIQKlkJxMCKDqIexkgHAfID/6mqvmnSJf0b5W8v5h2pI/stOSwTQ+pxVhwJ9ctYDhRSlF0iTUWT10hcuO4Ks8='
+    good_pub_key = paramiko.RSAKey(data=base64.decodestring(data))
+
+    def __init__(self):
+        self.event = threading.Event()
+
+    def check_channel_request(self, kind, chanid):
+        if kind == 'session':
+            return paramiko.OPEN_SUCCEEDED
+        return paramiko.OPEN_FAILED_ADMINISTRATIVELY_PROHIBITED
+
+    def check_auth_password(self, username, password):
+        if (username == 'robey') and (password == 'foo'):
+            return paramiko.AUTH_SUCCESSFUL
+        return paramiko.AUTH_FAILED
+
+    def check_auth_publickey(self, username, key):
+        print 'Auth attempt with key: ' + paramiko.util.hexify(key.get_fingerprint())
+        if (username == 'robey') and (key == self.good_pub_key):
+            return paramiko.AUTH_SUCCESSFUL
+        return paramiko.AUTH_FAILED
+
+    def get_allowed_auths(self, username):
+        return 'password,publickey'
+
+    def check_channel_shell_request(self, channel):
+        self.event.set()
+        return True
+
+    def check_channel_pty_request(self, channel, term, width, height, pixelwidth,
+                                  pixelheight, modes):
+        return True
+
+
+# now connect
+try:
+    sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+    sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
+    sock.bind(('', 2200))
+except Exception, e:
+    print '*** Bind failed: ' + str(e)
+    traceback.print_exc()
+    sys.exit(1)
+
+try:
+    sock.listen(100)
+    print 'Listening for connection ...'
+    client, addr = sock.accept()
+except Exception, e:
+    print '*** Listen/accept failed: ' + str(e)
+    traceback.print_exc()
+    sys.exit(1)
+
+print 'Got a connection!'
+
+try:
+    event = threading.Event()
+    t = paramiko.Transport(client)
+    try:
+        t.load_server_moduli()
+    except:
+        print '(Failed to load moduli -- gex will be unsupported.)'
+        raise
+    t.add_server_key(host_key)
+    server = Server()
+    t.start_server(event, server)
+    while 1:
+        event.wait(0.1)
+        if not t.is_active():
+            print '*** SSH negotiation failed.'
+            sys.exit(1)
+        if event.isSet():
+            break
+    # print repr(t)
+
+    # wait for auth
+    chan = t.accept(20)
+    if chan is None:
+        print '*** No channel.'
+        sys.exit(1)
+    print 'Authenticated!'
+    server.event.wait(10)
+    if not server.event.isSet():
+        print '*** Client never asked for a shell.'
+        sys.exit(1)
+
+    chan.send('\r\n\r\nWelcome to my dorky little BBS!\r\n\r\n')
+    chan.send('We are on fire all the time!  Hooray!  Candy corn for everyone!\r\n')
+    chan.send('Happy birthday to Robot Dave!\r\n\r\n')
+    chan.send('Username: ')
+    f = chan.makefile('rU')
+    username = f.readline().strip('\r\n')
+    chan.send('\r\nI don\'t like you, ' + username + '.\r\n')
+    chan.close()
+
+except Exception, e:
+    print '*** Caught exception: ' + str(e.__class__) + ': ' + str(e)
+    traceback.print_exc()
+    try:
+        t.close()
+    except:
+        pass
+    sys.exit(1)
+
diff --git a/demos/demo_simple.py b/demos/demo_simple.py
new file mode 100755
index 00000000..1bebaa13
--- /dev/null
+++ b/demos/demo_simple.py
@@ -0,0 +1,100 @@
+#!/usr/bin/env 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.
+
+
+import base64
+import getpass
+import os
+import socket
+import sys
+import traceback
+
+import paramiko
+import interactive
+
+
+# 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:
+    host_keys = paramiko.util.load_host_keys(os.path.expanduser('~/.ssh/known_hosts'))
+except IOError:
+    try:
+        host_keys = paramiko.util.load_host_keys(os.path.expanduser('~/ssh/known_hosts'))
+    except IOError:
+        print '*** Unable to open host keys file'
+        host_keys = {}
+
+if host_keys.has_key(hostname):
+    hostkeytype = host_keys[hostname].keys()[0]
+    hostkey = host_keys[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
+    interactive.interactive_shell(chan)
+    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)
diff --git a/demos/interactive.py b/demos/interactive.py
new file mode 100644
index 00000000..5023cb52
--- /dev/null
+++ b/demos/interactive.py
@@ -0,0 +1,97 @@
+# 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.
+
+
+import socket
+import sys
+
+# windows does not have termios...
+try:
+    import termios
+    import tty
+    has_termios = True
+except ImportError:
+    has_termios = False
+
+
+def interactive_shell(chan):
+    if has_termios:
+        posix_shell(chan)
+    else:
+        windows_shell(chan)
+
+
+def posix_shell(chan):
+    import select
+    
+    oldtty = termios.tcgetattr(sys.stdin)
+    try:
+        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:
+                x = sys.stdin.read(1)
+                if len(x) == 0:
+                    break
+                chan.send(x)
+
+    finally:
+        termios.tcsetattr(sys.stdin, termios.TCSADRAIN, oldtty)
+
+    
+# thanks to Mike Looijmans for this code
+def windows_shell(chan):
+    import threading
+
+    sys.stdout.write("Line-buffered terminal emulation. Press F6 or ^Z to send EOF.\r\n\r\n")
+        
+    def writeall(sock):
+        while True:
+            data = sock.recv(256)
+            if not data:
+                sys.stdout.write('\r\n*** EOF ***\r\n\r\n')
+                sys.stdout.flush()
+                break
+            sys.stdout.write(data)
+            sys.stdout.flush()
+        
+    writer = threading.Thread(target=writeall, args=(chan,))
+    writer.start()
+        
+    try:
+        while True:
+            d = sys.stdin.read(1)
+            if not d:
+                break
+            chan.send(d)
+    except EOFError:
+        # user hit ^Z or F6
+        pass