sugar-toolkit-gtk3/sugar/profile.py

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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
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# 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
# 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
# License along with this library; if not, write to the
# Free Software Foundation, Inc., 59 Temple Place - Suite 330,
# Boston, MA 02111-1307, USA.
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import os
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import logging
from ConfigParser import ConfigParser
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from sugar import env
from sugar import util
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from sugar.graphics.xocolor import XoColor
DEFAULT_JABBER_SERVER = 'olpc.collabora.co.uk'
DEFAULT_VOLUME = 81
_profile = None
def _set_key(cp, section, key, value):
if not cp.has_section(section):
cp.add_section(section)
cp.set(section, key, value)
class Profile(object):
"""Local user's current options/profile information
User settings are stored in an INI-style configuration
file. This object uses the ConfigParser module to load
the settings. (We only very rarely set keys, so we don't
keep the ConfigParser around between calls.)
The profile is also responsible for loading the user's
public and private ssh keys from disk.
Attributes:
name -- child's name
color -- XoColor for the child's icon
server -- school server with which the child is
associated
server_registered -- whether the child has registered
with the school server or not
backup1 -- temporary backup info key for Trial-2
pubkey -- public ssh key
privkey_hash -- SHA has of the child's public key
"""
def __init__(self, path):
self.nick_name = None
self.color = None
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self.pubkey = None
self.privkey_hash = None
self.jabber_server = DEFAULT_JABBER_SERVER
self.jabber_registered = False
self.backup1 = None
self._config_path = path
self._load_config()
self._load_pubkey()
self._hash_private_key()
def is_valid(self):
return self.nick_name is not None and \
self.color is not None and \
self.pubkey is not None and \
self.privkey_hash is not None
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def is_registered(self):
return self.backup1 is not None
def save(self):
cp = ConfigParser()
parsed = cp.read([self._config_path])
if self.nick_name:
_set_key(cp, 'Buddy', 'NickName', self.nick_name)
if self.color:
_set_key(cp, 'Buddy', 'Color', self.color.to_string())
if self.backup1:
_set_key(cp, 'Server', 'Backup1', self.backup1)
if self.jabber_server:
_set_key(cp, 'Jabber', 'Server', self.jabber_server)
_set_key(cp, 'Jabber', 'Registered', self.jabber_registered)
_set_key(cp, 'Sound', 'Volume', self.sound_volume)
f = open(self._config_path, 'w')
cp.write(f)
f.close()
def _load_config(self):
cp = ConfigParser()
parsed = cp.read([self._config_path])
if cp.has_option('Buddy', 'NickName'):
name = cp.get('Buddy', 'NickName')
# decode nickname from ascii-safe chars to unicode
self.nick_name = name.decode("utf-8")
if cp.has_option('Buddy', 'Color'):
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self.color = XoColor(cp.get('Buddy', 'Color'))
if cp.has_option('Jabber', 'Server'):
self.jabber_server = cp.get('Jabber', 'Server')
if cp.has_option('Jabber', 'Registered'):
registered = cp.get('Jabber', 'Registered')
if registered.lower() == "true":
self.jabber_registered = True
if cp.has_option('Server', 'Backup1'):
self.backup1 = cp.get('Server', 'Backup1')
if cp.has_option('Sound', 'Volume'):
self.sound_volume = float(cp.get('Sound', 'Volume'))
else:
self.sound_volume = DEFAULT_VOLUME
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del cp
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def _load_pubkey(self):
self.pubkey = None
key_path = os.path.join(env.get_profile_path(), 'owner.key.pub')
try:
f = open(key_path, "r")
lines = f.readlines()
f.close()
except IOError, e:
self.valid = False
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logging.error("Error reading public key: %s" % e)
return
magic = "ssh-dss "
for l in lines:
l = l.strip()
if not l.startswith(magic):
continue
self.pubkey = l[len(magic):]
break
if not self.pubkey:
logging.error("Error parsing public key.")
def _hash_private_key(self):
self.privkey_hash = None
key_path = os.path.join(env.get_profile_path(), 'owner.key')
try:
f = open(key_path, "r")
lines = f.readlines()
f.close()
except IOError, e:
logging.error("Error reading private key: %s" % e)
return
key = ""
for l in lines:
l = l.strip()
if l.startswith("-----BEGIN DSA PRIVATE KEY-----"):
continue
if l.startswith("-----END DSA PRIVATE KEY-----"):
continue
key += l
if not len(key):
logging.error("Error parsing public key.")
# hash it
key_hash = util._sha_data(key)
self.privkey_hash = util.printable_hash(key_hash)
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def get_profile():
global _profile
if not _profile:
path = os.path.join(env.get_profile_path(), 'config')
_profile = Profile(path)
return _profile
# Convenience methods for frequently used properties
def get_nick_name():
return get_profile().nick_name
def get_color():
return get_profile().color
def get_pubkey():
return get_profile().pubkey