sugar-toolkit-gtk3/services/presence/pstest.py
Simon McVittie a4a06206e3 services/presence/: identify Buddies by "key ID" (pubkey hash), not whole key.
This allows us to create Buddy objects as soon as we see a contact on the
server. For contacts not on trusted servers, or seen in anonymous MUCs, we
create a Buddy identified by JID instead (so we have some way to talk
about the anonymous contact within the Sugar API).

The concept of "trusted server" means a server which we trust to validate that
users with a keyID as the username part of their JID do in fact have that key.
Currently we just pretend that olpc.collabora.co.uk does this - in future, the
school servers will do this validation by using key rather than password
authentication.

Also create Buddy object paths based on the keyID or JID (for easier debugging).
2007-05-28 17:25:52 +01:00

317 lines
10 KiB
Python

# Copyright (C) 2007, Red Hat, Inc.
# Copyright (C) 2007 Collabora Ltd. <http://www.collabora.co.uk/>
#
# 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 2 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, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
import logging
import os
import random
from ConfigParser import ConfigParser, NoOptionError
import gobject
from sugar import env, util
from buddy import GenericOwner, _PROP_NICK, _PROP_CURACT, _PROP_COLOR
from presenceservice import PresenceService
from psutils import pubkey_to_keyid
_logger = logging.getLogger('s-p-s.pstest')
class TestOwner(GenericOwner):
"""Class representing the owner of the machine. This test owner
changes random attributes periodically."""
__gtype_name__ = "TestOwner"
def __init__(self, ps, bus, test_num, randomize):
self._cp = ConfigParser()
self._section = "Info"
self._test_activities = []
self._test_cur_act = ""
self._change_timeout = 0
self._cfg_file = os.path.join(env.get_profile_path(), 'test-buddy-%d' % test_num)
(pubkey, privkey, registered) = self._load_config()
if not pubkey or not len(pubkey) or not privkey or not len(privkey):
(pubkey, privkey) = _get_new_keypair(test_num)
if not pubkey or not privkey:
raise RuntimeError("Couldn't get or create test buddy keypair")
self._save_config(pubkey, privkey, registered)
privkey_hash = util.printable_hash(util._sha_data(privkey))
nick = _get_random_name()
from sugar.graphics import xocolor
color = xocolor.XoColor().to_string()
icon = _get_random_image()
_logger.debug("pubkey is %s" % pubkey)
GenericOwner.__init__(self, ps, bus, pubkey_to_keyid(pubkey),
key=pubkey, nick=nick, color=color, icon=icon,
registered=registered, key_hash=privkey_hash)
# Only do the random stuff if randomize is true
if randomize:
self._ps.connect('connection-status', self._ps_connection_status_cb)
def _share_reply_cb(self, actid, object_path):
activity = self._ps.internal_get_activity(actid)
if not activity or not object_path:
_logger.debug("Couldn't find activity %s even though it was shared." % actid)
return
_logger.debug("Shared activity %s (%s)." % (actid, activity.props.name))
self._test_activities.append(activity)
def _share_error_cb(self, actid, err):
_logger.debug("Error sharing activity %s: %s" % (actid, str(err)))
def _ps_connection_status_cb(self, ps, connected):
if not connected:
return
if not len(self._test_activities):
# Share some activities
actid = util.unique_id("Activity 1")
callbacks = (lambda *args: self._share_reply_cb(actid, *args),
lambda *args: self._share_error_cb(actid, *args))
atype = "org.laptop.WebActivity"
properties = {"foo": "bar"}
self._ps._share_activity(actid, atype, "Wembley Stadium", properties, callbacks)
actid2 = util.unique_id("Activity 2")
callbacks = (lambda *args: self._share_reply_cb(actid2, *args),
lambda *args: self._share_error_cb(actid2, *args))
atype = "org.laptop.WebActivity"
properties = {"baz": "bar"}
self._ps._share_activity(actid2, atype, "Maine Road", properties, callbacks)
# Change a random property ever 10 seconds
if self._change_timeout == 0:
self._change_timeout = gobject.timeout_add(10000, self._update_something)
def set_registered(self, value):
if value:
self._registered = True
def _load_config(self):
if not os.path.exists(self._cfg_file):
return (None, None, False)
if not self._cp.read([self._cfg_file]):
return (None, None, False)
if not self._cp.has_section(self._section):
return (None, None, False)
try:
pubkey = self._cp.get(self._section, "pubkey")
privkey = self._cp.get(self._section, "privkey")
registered = self._cp.get(self._section, "registered")
return (pubkey, privkey, registered)
except NoOptionError:
pass
return (None, None, False)
def _save_config(self, pubkey, privkey, registered):
# Save config again
if not self._cp.has_section(self._section):
self._cp.add_section(self._section)
self._cp.set(self._section, "pubkey", pubkey)
self._cp.set(self._section, "privkey", privkey)
self._cp.set(self._section, "registered", registered)
f = open(self._cfg_file, 'w')
self._cp.write(f)
f.close()
def _update_something(self):
it = random.randint(0, 10000) % 4
if it == 0:
self.props.icon = _get_random_image()
elif it == 1:
from sugar.graphics import xocolor
props = {_PROP_COLOR: xocolor.XoColor().to_string()}
self.set_properties(props)
elif it == 2:
props = {_PROP_NICK: _get_random_name()}
self.set_properties(props)
elif it == 3:
actid = ""
idx = random.randint(0, len(self._test_activities))
# if idx == len(self._test_activites), it means no current
# activity
if idx < len(self._test_activities):
activity = self._test_activities[idx]
actid = activity.props.id
props = {_PROP_CURACT: actid}
self.set_properties(props)
return True
class TestPresenceService(PresenceService):
def __init__(self, test_num=0, randomize=False):
self.__test_num = test_num
self.__randomize = randomize
PresenceService.__init__(self)
def _create_owner(self):
return TestOwner(self, self._session_bus,
self.__test_num, self.__randomize)
def internal_get_activity(self, actid):
return self._activities.get(actid, None)
def _extract_public_key(keyfile):
try:
f = open(keyfile, "r")
lines = f.readlines()
f.close()
except IOError, e:
_logger.error("Error reading public key: %s" % e)
return None
# Extract the public key
magic = "ssh-dss "
key = ""
for l in lines:
l = l.strip()
if not l.startswith(magic):
continue
key = l[len(magic):]
break
if not len(key):
_logger.error("Error parsing public key.")
return None
return key
def _extract_private_key(keyfile):
"""Get a private key from a private key file"""
# Extract the private key
try:
f = open(keyfile, "r")
lines = f.readlines()
f.close()
except IOError, e:
_logger.error("Error reading private key: %s" % e)
return None
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):
_logger.error("Error parsing private key.")
return None
return key
def _get_new_keypair(num):
"""Retrieve a public/private key pair for testing"""
# Generate keypair
privkeyfile = os.path.join("/tmp", "test%d.key" % num)
pubkeyfile = os.path.join("/tmp", 'test%d.key.pub' % num)
# force-remove key files if they exist to ssh-keygen doesn't
# start asking questions
try:
os.remove(pubkeyfile)
os.remove(privkeyfile)
except OSError:
pass
cmd = "ssh-keygen -q -t dsa -f %s -C '' -N ''" % privkeyfile
import commands
print "Generating new keypair..."
(s, o) = commands.getstatusoutput(cmd)
print "Done."
pubkey = privkey = None
if s != 0:
_logger.error("Could not generate key pair: %d (%s)" % (s, o))
else:
pubkey = _extract_public_key(pubkeyfile)
privkey = _extract_private_key(privkeyfile)
try:
os.remove(pubkeyfile)
os.remove(privkeyfile)
except OSError:
pass
return (pubkey, privkey)
def _get_random_name():
"""Produce random names for testing"""
names = ["Liam", "Noel", "Guigsy", "Whitey", "Bonehead"]
return names[random.randint(0, len(names) - 1)]
def _get_random_image():
"""Produce a random image for display"""
import cairo, math, gtk
def rand():
return random.random()
SIZE = 200
s = cairo.ImageSurface(cairo.FORMAT_ARGB32, SIZE, SIZE)
cr = cairo.Context(s)
# background gradient
cr.save()
g = cairo.LinearGradient(0, 0, 1, 1)
g.add_color_stop_rgba(1, rand(), rand(), rand(), rand())
g.add_color_stop_rgba(0, rand(), rand(), rand(), rand())
cr.set_source(g)
cr.rectangle(0, 0, SIZE, SIZE);
cr.fill()
cr.restore()
# random path
cr.set_line_width(10 * rand() + 5)
cr.move_to(SIZE * rand(), SIZE * rand())
cr.line_to(SIZE * rand(), SIZE * rand())
cr.rel_line_to(SIZE * rand() * -1, 0)
cr.close_path()
cr.stroke()
# a circle
cr.set_source_rgba(rand(), rand(), rand(), rand())
cr.arc(SIZE * rand(), SIZE * rand(), 100 * rand() + 30, 0, 2 * math.pi)
cr.fill()
# another circle
cr.set_source_rgba(rand(), rand(), rand(), rand())
cr.arc(SIZE * rand(), SIZE * rand(), 100 * rand() + 30, 0, 2 * math.pi)
cr.fill()
def img_convert_func(buf, data):
data[0] += buf
return True
data = [""]
pixbuf = gtk.gdk.pixbuf_new_from_data(s.get_data(), gtk.gdk.COLORSPACE_RGB,
True, 8, s.get_width(), s.get_height(), s.get_stride())
pixbuf.save_to_callback(img_convert_func, "jpeg", {"quality": "90"}, data)
del pixbuf
return str(data[0])