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authorFlorent Le Coz <louiz@louiz.org>2014-07-17 14:19:04 +0200
committerFlorent Le Coz <louiz@louiz.org>2014-07-17 14:19:04 +0200
commit5ab77c745270d7d5c016c1dc7ef2a82533a4b16e (patch)
tree259377cc666f8b9c7954fc4e7b8f7a912bcfe101 /sleekxmpp/plugins/xep_0027/gpg.py
parente5582694c07236e6830c20361840360a1dde37f3 (diff)
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Rename to slixmpp
Diffstat (limited to 'sleekxmpp/plugins/xep_0027/gpg.py')
-rw-r--r--sleekxmpp/plugins/xep_0027/gpg.py170
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diff --git a/sleekxmpp/plugins/xep_0027/gpg.py b/sleekxmpp/plugins/xep_0027/gpg.py
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--- a/sleekxmpp/plugins/xep_0027/gpg.py
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@@ -1,170 +0,0 @@
-"""
- SleekXMPP: The Sleek XMPP Library
- Copyright (C) 2012 Nathanael C. Fritz, Lance J.T. Stout
- This file is part of SleekXMPP.
-
- See the file LICENSE for copying permission.
-"""
-
-from sleekxmpp.thirdparty import GPG
-
-from sleekxmpp.stanza import Presence, Message
-from sleekxmpp.plugins.base import BasePlugin, register_plugin
-from sleekxmpp.xmlstream import ElementBase, register_stanza_plugin
-from sleekxmpp.xmlstream.handler import Callback
-from sleekxmpp.xmlstream.matcher import StanzaPath
-from sleekxmpp.plugins.xep_0027 import stanza, Signed, Encrypted
-
-
-def _extract_data(data, kind):
- stripped = []
- begin_headers = False
- begin_data = False
- for line in data.split('\n'):
- if not begin_headers and 'BEGIN PGP %s' % kind in line:
- begin_headers = True
- continue
- if begin_headers and line.strip() == '':
- begin_data = True
- continue
- if 'END PGP %s' % kind in line:
- return '\n'.join(stripped)
- if begin_data:
- stripped.append(line)
- return ''
-
-
-class XEP_0027(BasePlugin):
-
- name = 'xep_0027'
- description = 'XEP-0027: Current Jabber OpenPGP Usage'
- dependencies = set()
- stanza = stanza
- default_config = {
- 'gpg_binary': 'gpg',
- 'gpg_home': '',
- 'use_agent': True,
- 'keyring': None,
- 'key_server': 'pgp.mit.edu'
- }
-
- def plugin_init(self):
- self.gpg = GPG(gnupghome=self.gpg_home,
- gpgbinary=self.gpg_binary,
- use_agent=self.use_agent,
- keyring=self.keyring)
-
- self.xmpp.add_filter('out', self._sign_presence)
-
- self._keyids = {}
-
- self.api.register(self._set_keyid, 'set_keyid', default=True)
- self.api.register(self._get_keyid, 'get_keyid', default=True)
- self.api.register(self._del_keyid, 'del_keyid', default=True)
- self.api.register(self._get_keyids, 'get_keyids', default=True)
-
- register_stanza_plugin(Presence, Signed)
- register_stanza_plugin(Message, Encrypted)
-
- self.xmpp.add_event_handler('unverified_signed_presence',
- self._handle_unverified_signed_presence,
- threaded=True)
-
- self.xmpp.register_handler(
- Callback('Signed Presence',
- StanzaPath('presence/signed'),
- self._handle_signed_presence))
-
- self.xmpp.register_handler(
- Callback('Encrypted Message',
- StanzaPath('message/encrypted'),
- self._handle_encrypted_message))
-
- def plugin_end(self):
- self.xmpp.remove_handler('Encrypted Message')
- self.xmpp.remove_handler('Signed Presence')
- self.xmpp.del_filter('out', self._sign_presence)
- self.xmpp.del_event_handler('unverified_signed_presence',
- self._handle_unverified_signed_presence)
-
- def _sign_presence(self, stanza):
- if isinstance(stanza, Presence):
- if stanza['type'] == 'available' or \
- stanza['type'] in Presence.showtypes:
- stanza['signed'] = stanza['status']
- return stanza
-
- def sign(self, data, jid=None):
- keyid = self.get_keyid(jid)
- if keyid:
- signed = self.gpg.sign(data, keyid=keyid)
- return _extract_data(signed.data, 'SIGNATURE')
-
- def encrypt(self, data, jid=None):
- keyid = self.get_keyid(jid)
- if keyid:
- enc = self.gpg.encrypt(data, keyid)
- return _extract_data(enc.data, 'MESSAGE')
-
- def decrypt(self, data, jid=None):
- template = '-----BEGIN PGP MESSAGE-----\n' + \
- '\n' + \
- '%s\n' + \
- '-----END PGP MESSAGE-----\n'
- dec = self.gpg.decrypt(template % data)
- return dec.data
-
- def verify(self, data, sig, jid=None):
- template = '-----BEGIN PGP SIGNED MESSAGE-----\n' + \
- 'Hash: SHA1\n' + \
- '\n' + \
- '%s\n' + \
- '-----BEGIN PGP SIGNATURE-----\n' + \
- '\n' + \
- '%s\n' + \
- '-----END PGP SIGNATURE-----\n'
- v = self.gpg.verify(template % (data, sig))
- return v
-
- def set_keyid(self, jid=None, keyid=None):
- self.api['set_keyid'](jid, args=keyid)
-
- def get_keyid(self, jid=None):
- return self.api['get_keyid'](jid)
-
- def del_keyid(self, jid=None):
- self.api['del_keyid'](jid)
-
- def get_keyids(self):
- return self.api['get_keyids']()
-
- def _handle_signed_presence(self, pres):
- self.xmpp.event('unverified_signed_presence', pres)
-
- def _handle_unverified_signed_presence(self, pres):
- verified = self.verify(pres['status'], pres['signed'])
- if verified.key_id:
- if not self.get_keyid(pres['from']):
- known_keyids = [e['keyid'] for e in self.gpg.list_keys()]
- if verified.key_id not in known_keyids:
- self.gpg.recv_keys(self.key_server, verified.key_id)
- self.set_keyid(jid=pres['from'], keyid=verified.key_id)
- self.xmpp.event('signed_presence', pres)
-
- def _handle_encrypted_message(self, msg):
- self.xmpp.event('encrypted_message', msg)
-
- # =================================================================
-
- def _set_keyid(self, jid, node, ifrom, keyid):
- self._keyids[jid] = keyid
-
- def _get_keyid(self, jid, node, ifrom, keyid):
- return self._keyids.get(jid, None)
-
- def _del_keyid(self, jid, node, ifrom, keyid):
- if jid in self._keyids:
- del self._keyids[jid]
-
- def _get_keyids(self, jid, node, ifrom, data):
- return self._keyids