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#!/usr/bin/env python
import pytest
from circuits import Component, Event
from circuits.core import Value
from circuits.node.protocol import Protocol
from circuits.node.utils import dump_event, dump_value
pytestmark = pytest.mark.skipif(pytest.PLATFORM == 'win32', reason='Broken on Windows')
class return_value(Event):
success = True
class firewall_block(Event):
pass
class AppClient(Component):
write_data = b''
def return_value(self):
return 'Hello server!'
def write(self, data):
self.write_data = data
class AppFirewall(Component):
write_data = b''
def fw_receive(self, event, sock):
return self.__event_is_allow(event)
def fw_send(self, event, sock):
return self.__event_is_allow(event)
def write(self, data):
self.write_data = data
def __event_is_allow(self, event):
allow = event.name == 'return_value' and 'prohibits_channel' not in event.channels
if not allow:
self.fire(firewall_block())
return allow
class AppServer(Component):
write_data = b''
write_sock = None
def return_value(self):
return 'Hello client!'
def write(self, sock, data):
self.write_sock = sock
self.write_data = data
@pytest.fixture()
def app_client(request, manager, watcher):
app = AppClient()
app.register(manager)
watcher.wait('registered')
app.protocol = Protocol().register(app)
watcher.wait('registered')
def finalizer():
app.unregister()
request.addfinalizer(finalizer)
return app
@pytest.fixture()
def app_firewall(request, manager, watcher):
app = AppFirewall()
app.register(manager)
watcher.wait('registered')
app.protocol = Protocol(
sock='sock obj',
receive_event_firewall=app.fw_receive,
send_event_firewall=app.fw_send,
).register(app)
watcher.wait('registered')
def finalizer():
app.unregister()
request.addfinalizer(finalizer)
return app
@pytest.fixture()
def app_server(request, manager, watcher):
app = AppServer()
app.register(manager)
watcher.wait('registered')
app.protocol = Protocol(sock='sock obj', server=True).register(app)
watcher.wait('registered')
def finalizer():
app.unregister()
request.addfinalizer(finalizer)
return app
def test_add_buffer(app_client, watcher):
packet = str.encode(dump_event(return_value(), 1))
app_client.protocol.add_buffer(packet)
assert watcher.wait('return_value_success')
assert watcher.wait('write')
value = Value()
value.value = 'Hello server!'
value.errors = False
value.node_call_id = 1
assert app_client.write_data == str.encode(dump_value(value) + '~~~')
def test_add_buffer_server(app_server, watcher):
packet = str.encode(dump_event(return_value(), 1))
app_server.protocol.add_buffer(packet)
assert watcher.wait('return_value_success')
assert watcher.wait('write')
value = Value()
value.value = 'Hello client!'
value.errors = False
value.node_call_id = 1
assert app_server.write_data == str.encode(dump_value(value) + '~~~')
assert app_server.write_sock == 'sock obj'
def test_firewall_receive(app_firewall, watcher):
# good event
packet = str.encode(dump_event(return_value(), 1))
app_firewall.protocol.add_buffer(packet)
assert watcher.wait('return_value')
# bad name
packet = str.encode(dump_event(Event.create('unallow_event'), 1))
app_firewall.protocol.add_buffer(packet)
assert watcher.wait('firewall_block')
# bad channel
event = return_value()
event.channels = ('prohibits_channel',)
packet = str.encode(dump_event(event, 1))
app_firewall.protocol.add_buffer(packet)
assert watcher.wait('firewall_block')
def test_firewall_send(app_firewall, watcher):
# good event
event = return_value()
generator = app_firewall.protocol.send(event)
next(generator) # exec
assert watcher.wait('write')
assert app_firewall.write_data == str.encode(dump_event(event, 0) + '~~~')
# bad name
generator = app_firewall.protocol.send(Event.create('unallow_event'))
next(generator) # exec
assert watcher.wait('firewall_block')
# bad channel
event = return_value()
event.channels = ('prohibits_channel',)
generator = app_firewall.protocol.send(event)
next(generator) # exec
assert watcher.wait('firewall_block')
def test_send(app_client, watcher):
event = return_value()
generator = app_client.protocol.send(event)
next(generator) # exec
assert watcher.wait('write')
assert app_client.write_data == str.encode(dump_event(event, 0) + '~~~')
value = Value()
value.value = 'Hello server!'
value.errors = False
value.node_call_id = 0
app_client.protocol.add_buffer(str.encode(dump_value(value) + '~~~'))
assert next(generator).getValue() == value.value
def test_send_server(app_server, watcher):
event = return_value()
generator = app_server.protocol.send(event)
next(generator) # exec
assert watcher.wait('write')
assert app_server.write_data == str.encode(dump_event(event, 0) + '~~~')
assert app_server.write_sock == 'sock obj'
value = Value()
value.value = 'Hello client!'
value.errors = False
value.node_call_id = 0
app_server.protocol.add_buffer(str.encode(dump_value(value) + '~~~'))
assert next(generator).getValue() == value.value
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