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authorIvan Alejandro <ivanalejandro0@gmail.com>2014-02-04 16:20:54 -0300
committerIvan Alejandro <ivanalejandro0@gmail.com>2014-02-04 16:20:54 -0300
commit74428b3176d286312f69e124d4d613c27a1ec93e (patch)
treeeec0561e2184472dfedba3135a3d005efd478c34 /src/leap/mail/imap/service/manhole.py
parent781bd2f4d2a047088d1a0ecd673a38c80ea0c0c0 (diff)
parent23e28bae2c3cb74e00e29ee8add0b73adeb65c2b (diff)
Merge remote-tracking branch 'kali/feature/in-memory-store' into develop
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+# -*- coding: utf-8 -*-
+# manhole.py
+# Copyright (C) 2014 LEAP
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed 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 General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+"""
+Utilities for enabling the manhole administrative interface into the
+LEAP Mail application.
+"""
+MANHOLE_PORT = 2222
+
+
+def getManholeFactory(namespace, user, secret):
+ """
+ Get an administrative manhole into the application.
+
+ :param namespace: the namespace to show in the manhole
+ :type namespace: dict
+ :param user: the user to authenticate into the administrative shell.
+ :type user: str
+ :param secret: pass for this manhole
+ :type secret: str
+ """
+ import string
+
+ from twisted.cred.portal import Portal
+ from twisted.conch import manhole, manhole_ssh
+ from twisted.conch.insults import insults
+ from twisted.cred.checkers import (
+ InMemoryUsernamePasswordDatabaseDontUse as MemoryDB)
+
+ from rlcompleter import Completer
+
+ class EnhancedColoredManhole(manhole.ColoredManhole):
+ """
+ A Manhole with some primitive autocomplete support.
+ """
+ # TODO use introspection to make life easier
+
+ def find_common(self, l):
+ """
+ find common parts in thelist items
+ ex: 'ab' for ['abcd','abce','abf']
+ requires an ordered list
+ """
+ if len(l) == 1:
+ return l[0]
+
+ init = l[0]
+ for item in l[1:]:
+ for i, (x, y) in enumerate(zip(init, item)):
+ if x != y:
+ init = "".join(init[:i])
+ break
+
+ if not init:
+ return None
+ return init
+
+ def handle_TAB(self):
+ """
+ Trap the TAB keystroke.
+ """
+ necessarypart = "".join(self.lineBuffer).split(' ')[-1]
+ completer = Completer(globals())
+ if completer.complete(necessarypart, 0):
+ matches = list(set(completer.matches)) # has multiples
+
+ if len(matches) == 1:
+ length = len(necessarypart)
+ self.lineBuffer = self.lineBuffer[:-length]
+ self.lineBuffer.extend(matches[0])
+ self.lineBufferIndex = len(self.lineBuffer)
+ else:
+ matches.sort()
+ commons = self.find_common(matches)
+ if commons:
+ length = len(necessarypart)
+ self.lineBuffer = self.lineBuffer[:-length]
+ self.lineBuffer.extend(commons)
+ self.lineBufferIndex = len(self.lineBuffer)
+
+ self.terminal.nextLine()
+ while matches:
+ matches, part = matches[4:], matches[:4]
+ for item in part:
+ self.terminal.write('%s' % item.ljust(30))
+ self.terminal.write('\n')
+ self.terminal.nextLine()
+
+ self.terminal.eraseLine()
+ self.terminal.cursorBackward(self.lineBufferIndex + 5)
+ self.terminal.write("%s %s" % (
+ self.ps[self.pn], "".join(self.lineBuffer)))
+
+ def keystrokeReceived(self, keyID, modifier):
+ """
+ Act upon any keystroke received.
+ """
+ self.keyHandlers.update({'\b': self.handle_BACKSPACE})
+ m = self.keyHandlers.get(keyID)
+ if m is not None:
+ m()
+ elif keyID in string.printable:
+ self.characterReceived(keyID, False)
+
+ sshRealm = manhole_ssh.TerminalRealm()
+
+ def chainedProtocolFactory():
+ return insults.ServerProtocol(EnhancedColoredManhole, namespace)
+
+ sshRealm = manhole_ssh.TerminalRealm()
+ sshRealm.chainedProtocolFactory = chainedProtocolFactory
+
+ portal = Portal(
+ sshRealm, [MemoryDB(**{user: secret})])
+
+ f = manhole_ssh.ConchFactory(portal)
+ return f