Use a src directory consistently with base and shell.
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Marco Pesenti Gritti
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"""User settings/configuration loading"""
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# Copyright (C) 2006-2007, Red Hat, Inc.
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#
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# This library is free software; you can redistribute it and/or
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# modify it under the terms of the GNU Lesser General Public
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# License as published by the Free Software Foundation; either
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# version 2 of the License, or (at your option) any later version.
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#
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# This library is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# Lesser General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public
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# License along with this library; if not, write to the
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# Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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# Boston, MA 02111-1307, USA.
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import os
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import logging
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from ConfigParser import ConfigParser
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from sugar import env
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from sugar import util
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from sugar.graphics.xocolor import XoColor
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DEFAULT_JABBER_SERVER = 'olpc.collabora.co.uk'
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DEFAULT_VOLUME = 81
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_profile = None
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def _set_key(cp, section, key, value):
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if not cp.has_section(section):
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cp.add_section(section)
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cp.set(section, key, value)
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class Profile(object):
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"""Local user's current options/profile information
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User settings are stored in an INI-style configuration
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file. This object uses the ConfigParser module to load
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the settings. (We only very rarely set keys, so we don't
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keep the ConfigParser around between calls.)
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The profile is also responsible for loading the user's
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public and private ssh keys from disk.
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Attributes:
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name -- child's name
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color -- XoColor for the child's icon
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server -- school server with which the child is
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associated
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server_registered -- whether the child has registered
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with the school server or not
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backup1 -- temporary backup info key for Trial-2
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pubkey -- public ssh key
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privkey_hash -- SHA has of the child's public key
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"""
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def __init__(self, path):
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self.nick_name = None
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self.color = None
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self.jabber_server = DEFAULT_JABBER_SERVER
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self.jabber_registered = False
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self.backup1 = None
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self.sound_volume = DEFAULT_VOLUME
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self._pubkey = None
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self._privkey_hash = None
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self._config_path = path
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self._load_config()
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def is_valid(self):
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return self.nick_name is not None and \
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self.color is not None and \
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self.pubkey is not None and \
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self.privkey_hash is not None
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def is_registered(self):
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return self.backup1 is not None
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def save(self):
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cp = ConfigParser()
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cp.read([self._config_path])
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if self.nick_name:
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_set_key(cp, 'Buddy', 'NickName', self.nick_name.encode('utf8'))
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if self.color:
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_set_key(cp, 'Buddy', 'Color', self.color.to_string())
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if self.backup1:
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_set_key(cp, 'Server', 'Backup1', self.backup1)
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if self.jabber_server:
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_set_key(cp, 'Jabber', 'Server', self.jabber_server)
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_set_key(cp, 'Jabber', 'Registered', self.jabber_registered)
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_set_key(cp, 'Sound', 'Volume', self.sound_volume)
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f = open(self._config_path, 'w')
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cp.write(f)
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f.close()
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def _load_config(self):
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cp = ConfigParser()
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cp.read([self._config_path])
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if cp.has_option('Buddy', 'NickName'):
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name = cp.get('Buddy', 'NickName')
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# decode nickname from ascii-safe chars to unicode
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self.nick_name = name.decode("utf-8")
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if cp.has_option('Buddy', 'Color'):
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self.color = XoColor(cp.get('Buddy', 'Color'))
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if cp.has_option('Jabber', 'Server'):
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self.jabber_server = cp.get('Jabber', 'Server')
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if cp.has_option('Jabber', 'Registered'):
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registered = cp.get('Jabber', 'Registered')
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if registered.lower() == "true":
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self.jabber_registered = True
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if cp.has_option('Server', 'Backup1'):
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self.backup1 = cp.get('Server', 'Backup1')
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if cp.has_option('Sound', 'Volume'):
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self.sound_volume = float(cp.get('Sound', 'Volume'))
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del cp
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def _load_pubkey(self):
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key_path = os.path.join(env.get_profile_path(), 'owner.key.pub')
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try:
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f = open(key_path, "r")
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lines = f.readlines()
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f.close()
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except IOError, e:
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logging.error("Error reading public key: %s" % e)
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return None
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magic = "ssh-dss "
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for l in lines:
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l = l.strip()
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if not l.startswith(magic):
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continue
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return l[len(magic):]
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else:
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logging.error("Error parsing public key.")
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return None
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def _get_pubkey(self):
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# load on-demand.
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if not self._pubkey:
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self._pubkey = self._load_pubkey()
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return self._pubkey
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def _hash_private_key(self):
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key_path = os.path.join(env.get_profile_path(), 'owner.key')
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try:
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f = open(key_path, "r")
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lines = f.readlines()
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f.close()
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except IOError, e:
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logging.error("Error reading private key: %s" % e)
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return None
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key = ""
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for l in lines:
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l = l.strip()
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if l.startswith("-----BEGIN DSA PRIVATE KEY-----"):
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continue
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if l.startswith("-----END DSA PRIVATE KEY-----"):
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continue
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key += l
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if not len(key):
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logging.error("Error parsing public key.")
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return None
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# hash it
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key_hash = util._sha_data(key)
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return util.printable_hash(key_hash)
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def _get_privkey_hash(self):
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# load on-demand.
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if not self._privkey_hash:
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self._privkey_hash = self._hash_private_key()
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return self._privkey_hash
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privkey_hash = property(_get_privkey_hash)
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pubkey = property(_get_pubkey)
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def get_profile():
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global _profile
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if not _profile:
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path = os.path.join(env.get_profile_path(), 'config')
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_profile = Profile(path)
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return _profile
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# Convenience methods for frequently used properties
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def get_nick_name():
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return get_profile().nick_name
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def get_color():
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return get_profile().color
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def get_pubkey():
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return get_profile().pubkey
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