133e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org# Copyright 2012 the V8 project authors. All rights reserved.
233e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org# Redistribution and use in source and binary forms, with or without
333e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org# modification, are permitted provided that the following conditions are
433e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org# met:
533e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org#
633e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org#     * Redistributions of source code must retain the above copyright
733e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org#       notice, this list of conditions and the following disclaimer.
833e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org#     * Redistributions in binary form must reproduce the above
933e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org#       copyright notice, this list of conditions and the following
1033e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org#       disclaimer in the documentation and/or other materials provided
1133e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org#       with the distribution.
1233e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org#     * Neither the name of Google Inc. nor the names of its
1333e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org#       contributors may be used to endorse or promote products derived
1433e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org#       from this software without specific prior written permission.
1533e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org#
1633e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
1733e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
1833e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
1933e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
2033e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
2133e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
2233e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
2333e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
2433e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
2533e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
2633e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
2733e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org
2833e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org
2933e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.orgimport socket
3033e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.orgimport SocketServer
3133e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org
3233e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.orgfrom . import compression
3333e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.orgfrom . import constants
3433e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org
3533e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org
3633e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.orgdef _StatusQuery(peer, query):
3733e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org  sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
3833e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org  code = sock.connect_ex((peer.address, constants.STATUS_PORT))
3933e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org  if code != 0:
4033e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org    # TODO(jkummerow): disconnect (after 3 failures?)
4133e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org    return
4233e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org  compression.Send(query, sock)
4333e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org  compression.Send(constants.END_OF_STREAM, sock)
4433e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org  rec = compression.Receiver(sock)
4533e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org  data = None
4633e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org  while not rec.IsDone():
4733e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org    data = rec.Current()
4833e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org    assert data[0] == query[0]
4933e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org    data = data[1]
5033e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org    rec.Advance()
5133e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org  sock.close()
5233e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org  return data
5333e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org
5433e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org
5533e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.orgdef RequestTrustedPubkeys(peer, server):
5633e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org  pubkey_list = _StatusQuery(peer, [constants.LIST_TRUSTED_PUBKEYS])
5733e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org  for pubkey in pubkey_list:
5833e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org    if server.IsTrusted(pubkey): continue
5933e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org    result = _StatusQuery(peer, [constants.GET_SIGNED_PUBKEY, pubkey])
6033e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org    server.AcceptNewTrusted(result)
6133e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org
6233e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org
6333e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.orgdef NotifyNewTrusted(peer, data):
6433e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org  _StatusQuery(peer, [constants.NOTIFY_NEW_TRUSTED] + data)
6533e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org
6633e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org
6733e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.orgdef ITrustYouNow(peer):
6833e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org  _StatusQuery(peer, [constants.TRUST_YOU_NOW])
6933e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org
7033e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org
7133e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.orgdef TryTransitiveTrust(peer, pubkey, server):
7233e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org  if _StatusQuery(peer, [constants.DO_YOU_TRUST, pubkey]):
7333e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org    result = _StatusQuery(peer, [constants.GET_SIGNED_PUBKEY, pubkey])
7433e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org    server.AcceptNewTrusted(result)
7533e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org
7633e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org
7733e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.orgclass StatusHandler(SocketServer.BaseRequestHandler):
7833e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org  def handle(self):
7933e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org    rec = compression.Receiver(self.request)
8033e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org    while not rec.IsDone():
8133e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org      data = rec.Current()
8233e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org      action = data[0]
8333e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org
8433e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org      if action == constants.LIST_TRUSTED_PUBKEYS:
8533e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org        response = self.server.daemon.ListTrusted()
8633e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org        compression.Send([action, response], self.request)
8733e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org
8833e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org      elif action == constants.GET_SIGNED_PUBKEY:
8933e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org        response = self.server.daemon.SignTrusted(data[1])
9033e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org        compression.Send([action, response], self.request)
9133e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org
9233e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org      elif action == constants.NOTIFY_NEW_TRUSTED:
9333e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org        self.server.daemon.AcceptNewTrusted(data[1:])
9433e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org        pass  # No response.
9533e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org
9633e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org      elif action == constants.TRUST_YOU_NOW:
9733e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org        self.server.daemon.MarkPeerAsTrusting(self.client_address[0])
9833e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org        pass  # No response.
9933e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org
10033e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org      elif action == constants.DO_YOU_TRUST:
10133e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org        response = self.server.daemon.IsTrusted(data[1])
10233e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org        compression.Send([action, response], self.request)
10333e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org
10433e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org      rec.Advance()
10533e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org    compression.Send(constants.END_OF_STREAM, self.request)
10633e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org
10733e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org
10833e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.orgclass StatusSocketServer(SocketServer.ThreadingMixIn, SocketServer.TCPServer):
10933e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org  def __init__(self, daemon):
11033e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org    address = (daemon.ip, constants.STATUS_PORT)
11133e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org    SocketServer.TCPServer.__init__(self, address, StatusHandler)
11233e09c8efd078308de3c77a88301566f65c07befverwaest@chromium.org    self.daemon = daemon
113