diff options
Diffstat (limited to 'src/leap')
| -rw-r--r-- | src/leap/common/__init__.py | 2 | ||||
| -rw-r--r-- | src/leap/common/check.py | 26 | ||||
| -rw-r--r-- | src/leap/common/config/baseconfig.py | 65 | ||||
| -rw-r--r-- | src/leap/common/config/prefixers.py | 2 | ||||
| -rw-r--r-- | src/leap/common/config/tests/test_baseconfig.py | 268 | ||||
| -rw-r--r-- | src/leap/common/crypto.py | 114 | ||||
| -rw-r--r-- | src/leap/common/events/README.rst | 12 | ||||
| -rw-r--r-- | src/leap/common/events/__init__.py | 128 | ||||
| -rw-r--r-- | src/leap/common/events/client.py (renamed from src/leap/common/events/component.py) | 155 | ||||
| -rw-r--r-- | src/leap/common/events/daemon.py | 2 | ||||
| -rw-r--r-- | src/leap/common/events/events.proto | 44 | ||||
| -rw-r--r-- | src/leap/common/events/events_pb2.py | 550 | ||||
| -rw-r--r-- | src/leap/common/events/server.py | 132 | ||||
| -rw-r--r-- | src/leap/common/testing/basetest.py | 3 | ||||
| -rw-r--r-- | src/leap/common/tests/test_check.py | 52 | ||||
| -rw-r--r-- | src/leap/common/tests/test_crypto.py | 88 | ||||
| -rw-r--r-- | src/leap/common/tests/test_events.py | 316 |
17 files changed, 1406 insertions, 553 deletions
diff --git a/src/leap/common/__init__.py b/src/leap/common/__init__.py index 2b30715..3946fe8 100644 --- a/src/leap/common/__init__.py +++ b/src/leap/common/__init__.py @@ -16,4 +16,4 @@ except ImportError: __all__ = ["certs", "check", "files", "events"] -__version__ = "0.2.5" +__version__ = "0.3.0" diff --git a/src/leap/common/check.py b/src/leap/common/check.py index a2d39a6..82da5ff 100644 --- a/src/leap/common/check.py +++ b/src/leap/common/check.py @@ -18,7 +18,6 @@ Set of functions to help checking situations """ -import inspect import logging import traceback @@ -39,9 +38,11 @@ def leap_assert(condition, message=""): if not condition: logger.error("Bug: %s" % (message,)) try: - frame = inspect.currentframe() - stack_trace = traceback.format_stack(frame) - logger.error(''.join(stack_trace)) + for formatted_line in traceback.format_list( + traceback.extract_stack()[:-1]): + for line in formatted_line.split("\n"): + if len(line.strip()) > 0: + logger.error(line) except Exception as e: logger.error("Bug in leap_assert: %r" % (e,)) assert condition, message @@ -59,3 +60,20 @@ def leap_assert_type(var, expectedType): leap_assert(isinstance(var, expectedType), "Expected type %r instead of %r" % (expectedType, type(var))) + + +def leap_check(condition, message="", exception=Exception): + """ + Asserts the condition and displays the message if that's not + met. It also logs the error and its backtrace. + + :param condition: condition to check + :type condition: bool + :param message: message to display if the condition isn't met + :type message: str + :param exception: the exception to raise in case of condition being false. + :type exception: Exception + """ + if not condition: + logger.error(message) + raise exception(message) diff --git a/src/leap/common/config/baseconfig.py b/src/leap/common/config/baseconfig.py index e6bd9c4..e310bc0 100644 --- a/src/leap/common/config/baseconfig.py +++ b/src/leap/common/config/baseconfig.py @@ -26,7 +26,7 @@ import os from abc import ABCMeta, abstractmethod -from leap.common.check import leap_assert +from leap.common.check import leap_assert, leap_check from leap.common.files import mkdir_p from leap.common.config.pluggableconfig import PluggableConfig from leap.common.config.prefixers import get_platform_prefixer @@ -34,6 +34,12 @@ from leap.common.config.prefixers import get_platform_prefixer logger = logging.getLogger(__name__) +class NonExistingSchema(Exception): + """ + Raised if the schema needed to verify the config is None. + """ + + class BaseConfig: """ Abstract base class for any JSON based configuration. @@ -55,13 +61,27 @@ class BaseConfig: def __init__(self): self._data = {} self._config_checker = None + self._api_version = None @abstractmethod + def _get_schema(self): + """ + Returns the schema corresponding to the version given. + + :rtype: dict or None if the version is not supported. + """ + pass + def _get_spec(self): """ Returns the spec object for the specific configuration. + + :rtype: dict or None if the version is not supported. """ - return None + leap_assert(self._api_version is not None, + "You should set the API version.") + + return self._get_schema() def _safe_get_value(self, key): """ @@ -73,6 +93,17 @@ class BaseConfig: leap_assert(self._config_checker, "Load the config first") return self._config_checker.config.get(key, None) + def set_api_version(self, version): + """ + Sets the supported api version. + + :param api_version: the version of the api supported by the provider. + :type api_version: str + """ + self._api_version = version + leap_assert(self._get_schema() is not None, + "Version %s is not supported." % (version, )) + def get_path_prefix(self): """ Returns the platform dependant path prefixer @@ -112,6 +143,7 @@ class BaseConfig: def load(self, path="", data=None, mtime=None, relative=True): """ Loads the configuration from disk. + It may raise NonExistingSchema exception. :param path: if relative=True, this is a relative path to configuration. The absolute path @@ -131,8 +163,12 @@ class BaseConfig: else: config_path = path + schema = self._get_spec() + leap_check(schema is not None, + "There is no schema to use.", NonExistingSchema) + self._config_checker = PluggableConfig(format="json") - self._config_checker.options = copy.deepcopy(self._get_spec()) + self._config_checker.options = copy.deepcopy(schema) try: if data is None: @@ -155,26 +191,39 @@ class LocalizedKey(object): def __init__(self, func, **kwargs): self._func = func - def __call__(self, instance, lang="en"): + def __call__(self, instance, lang=None): """ Tries to return the string for the specified language, otherwise - informs the problem and returns an empty string. + returns the default language string. :param lang: language code :type lang: str :return: localized value from the possible values returned by self._func + It returns None in case that the provider does not provides + a matching pair of default_language and string for + that language. + e.g.: + 'default_language': 'es', + 'description': {'en': 'test description'} + Note that the json schema can't check that. """ descriptions = self._func(instance) - description_lang = "" - config_lang = "en" + config_lang = instance.get_default_language() + if lang is None: + lang = config_lang + for key in descriptions.keys(): if lang.startswith(key): config_lang = key break - description_lang = descriptions[config_lang] + description_lang = descriptions.get(config_lang) + if description_lang is None: + logger.error("There is a misconfiguration in the " + "provider's language strings.") + return description_lang def __get__(self, instance, instancetype): diff --git a/src/leap/common/config/prefixers.py b/src/leap/common/config/prefixers.py index 050d4cd..9a5b043 100644 --- a/src/leap/common/config/prefixers.py +++ b/src/leap/common/config/prefixers.py @@ -95,7 +95,7 @@ class DarwinPrefixer(Prefixer): config_dir = BaseDirectory.xdg_config_home if not standalone: return config_dir - return os.getenv(os.getcwd(), "config") + return os.path.join(os.getcwd(), "config") class WindowsPrefixer(Prefixer): diff --git a/src/leap/common/config/tests/test_baseconfig.py b/src/leap/common/config/tests/test_baseconfig.py new file mode 100644 index 0000000..8a2915e --- /dev/null +++ b/src/leap/common/config/tests/test_baseconfig.py @@ -0,0 +1,268 @@ +# -*- coding: utf-8 -*- +# test_baseconfig.py +# Copyright (C) 2013 LEAP +# +# 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 3 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, see <http://www.gnu.org/licenses/>. +""" +Tests for baseconfig +""" +import json +import unittest +import copy + +from leap.common.config.baseconfig import BaseConfig, LocalizedKey +from leap.common.testing.basetest import BaseLeapTest + +from mock import Mock + +# reduced eipconfig sample config +sample_config = { + "gateways": [ + { + "capabilities": { + "adblock": False, + "transport": ["openvpn"], + "user_ips": False + }, + "host": "host.dev.example.org", + }, { + "capabilities": { + "adblock": False, + "transport": ["openvpn"], + "user_ips": False + }, + "host": "host2.dev.example.org", + } + ], + "default_language": "en", + "languages": [ + "en", + "es" + ], + "name": { + "en": "Baseconfig testing environment", + "es": "Entorno de pruebas de Baseconfig" + }, + "serial": 1, + "version": 1 +} + +# reduced eipconfig.spec version +sample_spec = { + 'description': 'sample eip service config', + 'type': 'object', + 'properties': { + 'serial': { + 'type': int, + 'default': 1, + 'required': ["True"] + }, + 'version': { + 'type': int, + 'default': 1, + 'required': ["True"] + }, + "default_language": { + 'type': unicode, + 'default': 'en' + }, + 'languages': { + 'type': list, + 'default': ['en'] + }, + 'name': { + 'type': dict, + 'format': 'translatable', + 'default': {u'en': u'Test Provider'} + }, + 'gateways': { + 'type': list, + 'default': [ + {"capabilities": { + "adblock": True, + "transport": ["openvpn"], + "user_ips": False}, + "host": "location.example.org", + }] + }, + } +} + + +class TestConfig(BaseConfig): + """ + BaseConfig implementation for testing purposes only. + """ + def get_gateways(self): + return self._safe_get_value("gateways") + + def get_serial(self): + return self._safe_get_value("serial") + + def get_version(self): + return self._safe_get_value("version") + + def _get_spec(self): + return sample_spec + + def get_default_language(self): + return self._safe_get_value("default_language") + + @LocalizedKey + def get_name(self): + return self._safe_get_value("name") + + +class BaseConfigTest(BaseLeapTest): + + def setUp(self): + pass + + def tearDown(self): + pass + + def _write_config(self, data): + """ + Helper to write some data to a temp config file. + + :param data: data to be used to save in the config file. + :data type: dict (valid json) + """ + self.config_file = self.get_tempfile("config.json") + conf = open(self.config_file, "w") + conf.write(json.dumps(data)) + conf.close() + + def _get_config(self, fromfile=False, data=sample_config): + """ + Helper that returns a TestConfig object using the data parameter + or a sample data. + + :param fromfile: sets if we should use a file or a string + :fromfile type: bool + :param data: sets the data to be used to load in the TestConfig object + :data type: dict (valid json) + :rtype: TestConfig + """ + config = TestConfig() + + loaded = False + if fromfile: + self._write_config(data) + loaded = config.load(self.config_file, relative=False) + else: + json_string = json.dumps(data) + loaded = config.load(data=json_string) + + if not loaded: + return None + + return config + + def test_loads_from_file(self): + config = self._get_config(fromfile=True) + self.assertIsNotNone(config) + + def test_loads_from_data(self): + config = self._get_config() + self.assertIsNotNone(config) + + def test_load_valid_config_from_file(self): + config = self._get_config(fromfile=True) + self.assertIsNotNone(config) + + self.assertEqual(config.get_version(), sample_config["version"]) + self.assertEqual(config.get_serial(), sample_config["serial"]) + self.assertEqual(config.get_gateways(), sample_config["gateways"]) + + def test_load_valid_config_from_data(self): + config = self._get_config() + self.assertIsNotNone(config) + + self.assertEqual(config.get_version(), sample_config["version"]) + self.assertEqual(config.get_serial(), sample_config["serial"]) + self.assertEqual(config.get_gateways(), sample_config["gateways"]) + + def test_safe_get_value_no_config(self): + config = TestConfig() + + with self.assertRaises(AssertionError): + config.get_version() + + def test_safe_get_value_non_existent_value(self): + config = self._get_config() + + self.assertIsNone(config._safe_get_value('non-existent-value')) + + def test_loaded(self): + config = self._get_config() + self.assertTrue(config.loaded()) + + def test_not_loaded(self): + config = TestConfig() + self.assertFalse(config.loaded()) + + def test_save_and_load(self): + config = self._get_config() + config.get_path_prefix = Mock(return_value=self.tempdir) + config_file = 'test_config.json' + self.assertTrue(config.save([config_file])) + + config_saved = TestConfig() + config_file_path = self.get_tempfile(config_file) + self.assertTrue(config_saved.load(config_file_path, relative=False)) + + self.assertEqual(config.get_version(), config_saved.get_version()) + self.assertEqual(config.get_serial(), config_saved.get_serial()) + self.assertEqual(config.get_gateways(), config_saved.get_gateways()) + + def test_localizations(self): + conf = self._get_config() + + self.assertEqual(conf.get_name(lang='en'), sample_config['name']['en']) + self.assertEqual(conf.get_name(lang='es'), sample_config['name']['es']) + + def _localized_config(self, lang): + """ + Helper to change default language of the provider config. + """ + conf = copy.deepcopy(sample_config) + conf['default_language'] = lang + json_string = json.dumps(conf) + config = TestConfig() + config.load(data=json_string) + + return config + + def test_default_localization1(self): + default_language = sample_config['languages'][0] + config = self._localized_config(default_language) + + default_name = sample_config['name'][default_language] + + self.assertEqual(config.get_name(lang='xx'), default_name) + self.assertEqual(config.get_name(), default_name) + + def test_default_localization2(self): + default_language = sample_config['languages'][1] + config = self._localized_config(default_language) + + default_name = sample_config['name'][default_language] + + self.assertEqual(config.get_name(lang='xx'), default_name) + self.assertEqual(config.get_name(), default_name) + + +if __name__ == "__main__": + unittest.main(verbosity=2) diff --git a/src/leap/common/crypto.py b/src/leap/common/crypto.py deleted file mode 100644 index 7f80a8a..0000000 --- a/src/leap/common/crypto.py +++ /dev/null @@ -1,114 +0,0 @@ -# -*- coding: utf-8 -*- -# crypto.py -# Copyright (C) 2013 LEAP -# -# 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 3 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, see <http://www.gnu.org/licenses/>. - -import os -import binascii - -from Crypto.Cipher import AES -from Crypto.Util import Counter -from leap.common.check import leap_assert, leap_assert_type - -# -# encryption methods -# - -class EncryptionMethods(object): - """ - Representation of encryption methods that can be used. - """ - - AES_256_CTR = 'aes-256-ctr' - - -class UnknownEncryptionMethod(Exception): - """ - Raised when trying to encrypt/decrypt with unknown method. - """ - pass - - -# -# encrypt/decrypt functions -# - -# In the future, we might want to implement other encryption schemes and -# possibly factor out the actual encryption/decryption routines of the -# following functions to specific classes, while not changing the API. - -def encrypt_sym(data, key, method=EncryptionMethods.AES_256_CTR): - """ - Encrypt C{data} with C{key}, using C{method} encryption method. - - :param data: The data to be encrypted. - :type data: str - :param key: The key used to encrypt C{data} (must be 256 bits long). - :type key: str - :param method: The encryption method to use. - :type method: str - - :return: A tuple with the initial value and the encrypted data. - :rtype: (long, str) - """ - leap_assert_type(key, str) - - # AES-256 in CTR mode - if method == EncryptionMethods.AES_256_CTR: - leap_assert( - len(key) == 32, # 32 x 8 = 256 bits. - 'Wrong key size: %s bits (must be 256 bits long).' % (len(key)*8)) - iv = os.urandom(8) - ctr = Counter.new(64, prefix=iv) - cipher = AES.new(key=key, mode=AES.MODE_CTR, counter=ctr) - return binascii.b2a_base64(iv), cipher.encrypt(data) - - # raise if method is unknown - raise UnknownEncryptionMethod('Unkwnown method: %s' % method) - - -def decrypt_sym(data, key, method=EncryptionMethods.AES_256_CTR, **kwargs): - """ - Decrypt C{data} with C{key} using C{method} encryption method. - - :param data: The data to be decrypted. - :type data: str - :param key: The key used to decrypt C{data} (must be 256 bits long). - :type key: str - :param method: The encryption method to use. - :type method: str - :param kwargs: Other parameters specific to each encryption method. - :type kwargs: dict - - :return: The decrypted data. - :rtype: str - """ - leap_assert_type(key, str) - - # AES-256 in CTR mode - if method == EncryptionMethods.AES_256_CTR: - # assert params - leap_assert( - len(key) == 32, # 32 x 8 = 256 bits. - 'Wrong key size: %s (must be 256 bits long).' % len(key)) - leap_assert( - 'iv' in kwargs, - 'AES-256-CTR needs an initial value given as.') - ctr = Counter.new(64, prefix=binascii.a2b_base64(kwargs['iv'])) - cipher = AES.new(key=key, mode=AES.MODE_CTR, counter=ctr) - return cipher.decrypt(data) - - # raise if method is unknown - raise UnknownEncryptionMethod('Unkwnown method: %s' % method) diff --git a/src/leap/common/events/README.rst b/src/leap/common/events/README.rst index 813be8b..2e7f254 100644 --- a/src/leap/common/events/README.rst +++ b/src/leap/common/events/README.rst @@ -1,19 +1,19 @@ Events mechanism ================ -The events mechanism allows for "components" to send signal events to each -other by means of a centralized server. Components can register with the +The events mechanism allows for clients to send signal events to each +other by means of a centralized server. Clients can register with the server to receive signals of certain types, and they can also send signals to -the server that will then redistribute these signals to registered components. +the server that will then redistribute these signals to registered clients. Listening daemons ----------------- -Both components and the server listen for incoming messages by using a +Both clients and the server listen for incoming messages by using a listening daemon that runs in its own thread. The server daemon has to be -started explicitly, while components daemon will be started whenever a -component registers with the server to receive messages. +started explicitly, while clients daemon will be started whenever a +client registers with the server to receive messages. How to use it diff --git a/src/leap/common/events/__init__.py b/src/leap/common/events/__init__.py index 9fc93ee..6eaf3d4 100644 --- a/src/leap/common/events/__init__.py +++ b/src/leap/common/events/__init__.py @@ -16,7 +16,58 @@ # along with this program. If not, see <http://www.gnu.org/licenses/>. """ -An events mechanism that allows for signaling of events between components. +This is an events mechanism that uses a server to allow for signaling of +events between clients. + +Application components should use the interface available in this file to +register callbacks to be executed upon receiving specific signals, and to send +signals to other components. + +To register a callback to be executed when a specific event is signaled, use +leap.common.events.register(): + +>>> from leap.common.events import register +>>> from leap.common.events.proto import CLIENT_UID +>>> register(CLIENT_UID, lambda req: do_something(req)) + +To signal an event, use leap.common.events.signal(): + +>>> from leap.common.events import signal +>>> from leap.common.events.proto import CLIENT_UID +>>> signal(CLIENT_UID) + + +NOTE ABOUT SYNC/ASYNC REQUESTS: + +Clients always communicate with the server, and never between themselves. +When a client registers a callback for an event, the callback is saved locally +in the client and the server stores the client socket port in a list +associated with that event. When a client signals an event, the server +forwards the signal to all registered client ports, and then each client +executes its callbacks associated with that event locally. + +Each RPC call from a client to the server is followed by a response from the +server to the client. Calls to register() and signal() (and all other RPC +calls) can be synchronous or asynchronous meaning if they will or not wait for +the server's response before returning. + +This mechanism was built on top of protobuf.socketrpc, and because of this RPC +calls are made synchronous or asynchronous in the following way: + + * If RPC calls receive a parameter called `reqcbk`, then the call is made + asynchronous. That means that: + + - an eventual `timeout` parameter is not used, + - the call returns immediatelly with value None, and + - the `reqcbk` callback is executed asynchronously upon the arrival of + a response from the server. + + * Otherwise, if the `reqcbk` parameter is None, then the call is made in a + synchronous manner: + + - if a response from server arrives within `timeout` milliseconds, the + RPC call returns it; + - otherwise, the call returns None. """ import logging @@ -24,9 +75,9 @@ import socket from leap.common.events import ( - events_pb2, + events_pb2 as proto, server, - component, + client, daemon, ) @@ -54,17 +105,40 @@ def register(signal, callback, uid=None, replace=False, reqcbk=None, :param replace: should an existent callback with same uid be replaced? :type replace: bool :param reqcbk: a callback to be called when a response from server is - received - :type reqcbk: function - callback(leap.common.events.events_pb2.EventResponse) + received + :type reqcbk: function(leap.common.events.events_pb2.EventResponse) + :param timeout: the timeout for synch calls + :type timeout: int + + :return: the response from server for synch calls or nothing for asynch + calls. + :rtype: leap.common.events.events_pb2.EventsResponse or None + """ + return client.register(signal, callback, uid, replace, reqcbk, timeout) + + +def unregister(signal, uid=None, reqcbk=None, timeout=1000): + """ + Unregister a callback. + + If C{uid} is specified, unregisters only the callback identified by that + unique id. Otherwise, unregisters all callbacks registered for C{signal}. + + :param signal: the signal that causes the callback to be launched + :type signal: int (see the `events.proto` file) + :param uid: a unique id for the callback + :type uid: int + :param reqcbk: a callback to be called when a response from server is + received + :type reqcbk: function(proto.UnregisterRequest, proto.EventResponse) :param timeout: the timeout for synch calls :type timeout: int :return: the response from server for synch calls or nothing for asynch - calls + calls. :rtype: leap.common.events.events_pb2.EventsResponse or None """ - return component.register(signal, callback, uid, replace, reqcbk, timeout) + return client.unregister(signal, uid, reqcbk, timeout) def signal(signal, content="", mac_method="", mac="", reqcbk=None, @@ -87,14 +161,42 @@ def signal(signal, content="", mac_method="", mac="", reqcbk=None, :param mac: the content of the auth mac :type mac: str :param reqcbk: a callback to be called when a response from server is - received - :type reqcbk: function - callback(leap.common.events.events_pb2.EventResponse) + received + :type reqcbk: function(proto.SignalRequest, proto.EventResponse) :param timeout: the timeout for synch calls :type timeout: int :return: the response from server for synch calls or nothing for asynch - calls + calls. :rtype: leap.common.events.events_pb2.EventsResponse or None """ - return component.signal(signal, content, mac_method, mac, reqcbk, timeout) + return client.signal(signal, content, mac_method, mac, reqcbk, timeout) + +def ping_client(port, reqcbk=None, timeout=1000): + """ + Ping a client running in C{port}. + + :param port: the port in which the client should be listening + :type port: int + :param reqcbk: a callback to be called when a response from client is + received + :type reqcbk: function(proto.PingRequest, proto.EventResponse) + :param timeout: the timeout for synch calls + :type timeout: int + """ + return client.ping(port, reqcbk=reqcbk, timeout=timeout) + + +def ping_server(port=server.SERVER_PORT, reqcbk=None, timeout=1000): + """ + Ping the server. + + :param port: the port in which server should be listening + :type port: int + :param reqcbk: a callback to be called when a response from server is + received + :type reqcbk: function(proto.PingRequest, proto.EventResponse) + :param timeout: the timeout for synch calls + :type timeout: int + """ + return server.ping(port, reqcbk=reqcbk, timeout=timeout) diff --git a/src/leap/common/events/component.py b/src/leap/common/events/client.py index 9932190..4ae9bff 100644 --- a/src/leap/common/events/component.py +++ b/src/leap/common/events/client.py @@ -1,5 +1,5 @@ # -*- coding: utf-8 -*- -# component.py +# client.py # Copyright (C) 2013 LEAP # # This program is free software: you can redistribute it and/or modify @@ -16,15 +16,15 @@ # along with this program. If not, see <http://www.gnu.org/licenses/>. """ -The component end point of the events mechanism. +The client end point of the events mechanism. -Components are the communicating parties of the events mechanism. They +Clients are the communicating parties of the events mechanism. They communicate by sending messages to a server, which in turn redistributes -messages to other components. +messages to other clients. -When a component registers a callback for a given signal, it also tells the +When a client registers a callback for a given signal, it also tells the server that it wants to be notified whenever signals of that type are sent by -some other component. +some other client. """ @@ -56,25 +56,26 @@ class CallbackAlreadyRegistered(Exception): """ Raised when trying to register an already registered callback. """ + pass -def ensure_component_daemon(): +def ensure_client_daemon(): """ - Ensure the component daemon is running and listening for incoming + Ensure the client daemon is running and listening for incoming messages. :return: the daemon instance - :rtype: EventsComponentDaemon + :rtype: EventsClientDaemon """ import time - daemon = EventsComponentDaemon.ensure(0) - logger.debug('ensure component daemon') + daemon = EventsClientDaemon.ensure(0) + logger.debug('ensure client daemon') # Because we use a random port we want to wait until a port is assigned to - # local component daemon. + # local client daemon. - while not (EventsComponentDaemon.get_instance() and - EventsComponentDaemon.get_instance().get_port()): + while not (EventsClientDaemon.get_instance() and + EventsClientDaemon.get_instance().get_port()): time.sleep(0.1) return daemon @@ -94,16 +95,14 @@ def register(signal, callback, uid=None, replace=False, reqcbk=None, :param signal: the signal that causes the callback to be launched :type signal: int (see the `events.proto` file) :param callback: the callback to be called when the signal is received - :type callback: function - callback(leap.common.events.events_pb2.SignalRequest) + :type callback: function(leap.common.events.events_pb2.SignalRequest) :param uid: a unique id for the callback :type uid: int :param replace: should an existent callback with same uid be replaced? :type replace: bool :param reqcbk: a callback to be called when a response from server is - received - :type reqcbk: function - callback(leap.common.events.events_pb2.EventResponse) + received + :type reqcbk: function(proto.RegisterRequest, proto.EventResponse) :param timeout: the timeout for synch calls :type timeout: int @@ -111,10 +110,10 @@ def register(signal, callback, uid=None, replace=False, reqcbk=None, callback identified by the given uid and replace is False. :return: the response from server for synch calls or nothing for asynch - calls + calls. :rtype: leap.common.events.events_pb2.EventsResponse or None """ - ensure_component_daemon() # so we can receive registered signals + ensure_client_daemon() # so we can receive registered signals # register callback locally if signal not in registered_callbacks: registered_callbacks[signal] = [] @@ -129,7 +128,7 @@ def register(signal, callback, uid=None, replace=False, reqcbk=None, # register callback on server request = proto.RegisterRequest() request.event = signal - request.port = EventsComponentDaemon.get_instance().get_port() + request.port = EventsClientDaemon.get_instance().get_port() request.mac_method = mac_auth.MacMethod.MAC_NONE request.mac = "" service = RpcService(proto.EventsServerService_Stub, @@ -140,6 +139,56 @@ def register(signal, callback, uid=None, replace=False, reqcbk=None, str(request)[:40]) return service.register(request, callback=reqcbk, timeout=timeout) +def unregister(signal, uid=None, reqcbk=None, timeout=1000): + """ + Unregister a callback. + + If C{uid} is specified, unregisters only the callback identified by that + unique id. Otherwise, unregisters all callbacks + + :param signal: the signal that causes the callback to be launched + :type signal: int (see the `events.proto` file) + :param uid: a unique id for the callback + :type uid: int + :param reqcbk: a callback to be called when a response from server is + received + :type reqcbk: function(proto.UnregisterRequest, proto.EventResponse) + :param timeout: the timeout for synch calls + :type timeout: int + + :return: the response from server for synch calls or nothing for asynch + calls or None if no callback is registered for that signal or + uid. + :rtype: leap.common.events.events_pb2.EventsResponse or None + """ + if signal not in registered_callbacks or not registered_callbacks[signal]: + logger.warning("No callback registered for signal %d." % signal) + return None + # unregister callback locally + cbklist = registered_callbacks[signal] + if uid is not None: + if filter(lambda (cbkuid, _): cbkuid == uid, cbklist) == []: + logger.warning("No callback registered for uid %d." % st) + return None + registered_callbacks[signal] = filter(lambda(x, y): x != uid, cbklist) + else: + # exclude all callbacks for given signal + registered_callbacks[signal] = [] + # unregister port in server if there are no more callbacks for this signal + if not registered_callbacks[signal]: + request = proto.UnregisterRequest() + request.event = signal + request.port = EventsClientDaemon.get_instance().get_port() + request.mac_method = mac_auth.MacMethod.MAC_NONE + request.mac = "" + service = RpcService(proto.EventsServerService_Stub, + server.SERVER_PORT, 'localhost') + logger.info( + "Sending unregistration request to server on port %s: %s", + server.SERVER_PORT, + str(request)[:40]) + return service.unregister(request, callback=reqcbk, timeout=timeout) + def signal(signal, content="", mac_method="", mac="", reqcbk=None, timeout=1000): @@ -161,14 +210,13 @@ def signal(signal, content="", mac_method="", mac="", reqcbk=None, :param mac: the content of the auth mac :type mac: str :param reqcbk: a callback to be called when a response from server is - received - :type reqcbk: function - callback(leap.common.events.events_pb2.EventResponse) + received + :type reqcbk: function(proto.SignalRequest, proto.EventResponse) :param timeout: the timeout for synch calls :type timeout: int :return: the response from server for synch calls or nothing for asynch - calls + calls. :rtype: leap.common.events.events_pb2.EventsResponse or None """ request = proto.SignalRequest() @@ -182,13 +230,38 @@ def signal(signal, content="", mac_method="", mac="", reqcbk=None, return service.signal(request, callback=reqcbk, timeout=timeout) -class EventsComponentService(proto.EventsComponentService): +def ping(port, reqcbk=None, timeout=1000): """ - Service for receiving signal events in components. + Ping a client running in C{port}. + + :param port: the port in which the client should be listening + :type port: int + :param reqcbk: a callback to be called when a response from client is + received + :type reqcbk: function(proto.PingRequest, proto.EventResponse) + :param timeout: the timeout for synch calls + :type timeout: int + + :return: the response from client for synch calls or nothing for asynch + calls. + :rtype: leap.common.events.events_pb2.EventsResponse or None + """ + request = proto.PingRequest() + service = RpcService( + proto.EventsClientService_Stub, + port, + 'localhost') + logger.info("Pinging a client in port %d..." % port) + return service.ping(request, callback=reqcbk, timeout=timeout) + + +class EventsClientService(proto.EventsClientService): + """ + Service for receiving signal events in clients. """ def __init__(self): - proto.EventsComponentService.__init__(self) + proto.EventsClientService.__init__(self) def signal(self, controller, request, done): """ @@ -199,7 +272,7 @@ class EventsComponentService(proto.EventsComponentService): :param controller: used to mediate a single method call :type controller: protobuf.socketrpc.controller.SocketRpcController - :param request: the request received from the component + :param request: the request received from the client :type request: leap.common.events.events_pb2.SignalRequest :param done: callback to be called when done :type done: protobuf.socketrpc.server.Callback @@ -219,8 +292,24 @@ class EventsComponentService(proto.EventsComponentService): response.status = proto.EventResponse.OK done.run(response) + def ping(self, controller, request, done): + """ + Reply to a ping request. + + :param controller: used to mediate a single method call + :type controller: protobuf.socketrpc.controller.SocketRpcController + :param request: the request received from the client + :type request: leap.common.events.events_pb2.RegisterRequest + :param done: callback to be called when done + :type done: protobuf.socketrpc.server.Callback + """ + logger.info("Received ping request, sending response.") + response = proto.EventResponse() + response.status = proto.EventResponse.OK + done.run(response) + -class EventsComponentDaemon(daemon.EventsSingletonDaemon): +class EventsClientDaemon(daemon.EventsSingletonDaemon): """ A daemon that listens for incoming events from server. """ @@ -234,6 +323,6 @@ class EventsComponentDaemon(daemon.EventsSingletonDaemon): :type port: int :return: a daemon instance - :rtype: EventsComponentDaemon + :rtype: EventsClientDaemon """ - return cls.ensure_service(port, EventsComponentService()) + return cls.ensure_service(port, EventsClientService()) diff --git a/src/leap/common/events/daemon.py b/src/leap/common/events/daemon.py index c253948..c4a4189 100644 --- a/src/leap/common/events/daemon.py +++ b/src/leap/common/events/daemon.py @@ -43,7 +43,7 @@ class ServiceAlreadyRunningException(Exception): class EventsRpcServer(SocketRpcServer): """ - RPC server used in server and component interfaces to receive messages. + RPC server used in server and client interfaces to receive messages. """ def __init__(self, port, host='localhost'): diff --git a/src/leap/common/events/events.proto b/src/leap/common/events/events.proto index 447b038..b844f42 100644 --- a/src/leap/common/events/events.proto +++ b/src/leap/common/events/events.proto @@ -17,6 +17,9 @@ package leap.common.events; option py_generic_services = true; + +// These are the events that can be signaled using the events mechanism. + enum Event { CLIENT_SESSION_ID = 1; CLIENT_UID = 2; @@ -33,6 +36,10 @@ enum Event { RAISE_WINDOW = 13; } + +// A SignalRequest is the type of the message sent from one component to request +// that a signal be sent to every registered component. + message SignalRequest { required Event event = 1; required string content = 2; @@ -42,6 +49,10 @@ message SignalRequest { optional bool error_occurred = 6; } + +// A RegisterRequest message tells the server that a component wants to +// be signaled whenever a specific event occurs. + message RegisterRequest { required Event event = 1; required int32 port = 2; @@ -49,6 +60,28 @@ message RegisterRequest { required bytes mac = 4; } + +// An UnregisterRequest message tells the server that a component does not +// want to be signaled when a specific event occurs. + +message UnregisterRequest { + required Event event = 1; + required int32 port = 2; + required string mac_method = 3; + required bytes mac = 4; +} + + +// A PingRequest message is used to find out if a server or component is +// alive. + +message PingRequest { +} + + +// The EventResponse is the message sent back by server and components after +// they receive other kinds of requests. + message EventResponse { enum Status { @@ -61,11 +94,20 @@ message EventResponse { optional string result = 2; } + +// The EventsServerService is the service provided by the server. + service EventsServerService { + rpc ping(PingRequest) returns (EventResponse); rpc register(RegisterRequest) returns (EventResponse); + rpc unregister(UnregisterRequest) returns (EventResponse); rpc signal(SignalRequest) returns (EventResponse); } -service EventsComponentService { + +// EventsComponentService is the service provided by components (clients). + +service EventsClientService { + rpc ping(PingRequest) returns (EventResponse); rpc signal(SignalRequest) returns (EventResponse); } diff --git a/src/leap/common/events/events_pb2.py b/src/leap/common/events/events_pb2.py index a4f1df4..274514c 100644 --- a/src/leap/common/events/events_pb2.py +++ b/src/leap/common/events/events_pb2.py @@ -1,85 +1,87 @@ # Generated by the protocol buffer compiler. DO NOT EDIT! +# source: events.proto -from google.protobuf import descriptor -from google.protobuf import message -from google.protobuf import reflection -from google.protobuf import service +from google.protobuf.internal import enum_type_wrapper +from google.protobuf import descriptor as _descriptor +from google.protobuf import message as _message +from google.protobuf import reflection as _reflection +from google.protobuf import service as _service from google.protobuf import service_reflection from google.protobuf import descriptor_pb2 # @@protoc_insertion_point(imports) -DESCRIPTOR = descriptor.FileDescriptor( +DESCRIPTOR = _descriptor.FileDescriptor( name='events.proto', package='leap.common.events', - serialized_pb='\n\x0c\x65vents.proto\x12\x12leap.common.events\"\x97\x01\n\rSignalRequest\x12(\n\x05\x65vent\x18\x01 \x02(\x0e\x32\x19.leap.common.events.Event\x12\x0f\n\x07\x63ontent\x18\x02 \x02(\t\x12\x12\n\nmac_method\x18\x03 \x02(\t\x12\x0b\n\x03mac\x18\x04 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\x01(\t\"\'\n\x06Status\x12\x06\n\x02OK\x10\x01\x12\n\n\x06UNAUTH\x10\x02\x12\t\n\x05\x45RROR\x10\x03*\xe7\x02\n\x05\x45vent\x12\x15\n\x11\x43LIENT_SESSION_ID\x10\x01\x12\x0e\n\nCLIENT_UID\x10\x02\x12\x19\n\x15SOLEDAD_CREATING_KEYS\x10\x03\x12\x1e\n\x1aSOLEDAD_DONE_CREATING_KEYS\x10\x04\x12\x1a\n\x16SOLEDAD_UPLOADING_KEYS\x10\x05\x12\x1f\n\x1bSOLEDAD_DONE_UPLOADING_KEYS\x10\x06\x12\x1c\n\x18SOLEDAD_DOWNLOADING_KEYS\x10\x07\x12!\n\x1dSOLEDAD_DONE_DOWNLOADING_KEYS\x10\x08\x12\x1c\n\x18SOLEDAD_NEW_DATA_TO_SYNC\x10\t\x12\x1a\n\x16SOLEDAD_DONE_DATA_SYNC\x10\n\x12\x17\n\x13UPDATER_NEW_UPDATES\x10\x0b\x12\x19\n\x15UPDATER_DONE_UPDATING\x10\x0c\x12\x10\n\x0cRAISE_WINDOW\x10\r2\xb9\x01\n\x13\x45ventsServerService\x12R\n\x08register\x12#.leap.common.events.RegisterRequest\x1a!.leap.common.events.EventResponse\x12N\n\x06signal\x12!.leap.common.events.SignalRequest\x1a!.leap.common.events.EventResponse2h\n\x16\x45ventsComponentService\x12N\n\x06signal\x12!.leap.common.events.SignalRequest\x1a!.leap.common.events.EventResponseB\x03\x90\x01\x01') + serialized_pb='\n\x0c\x65vents.proto\x12\x12leap.common.events\"\x97\x01\n\rSignalRequest\x12(\n\x05\x65vent\x18\x01 \x02(\x0e\x32\x19.leap.common.events.Event\x12\x0f\n\x07\x63ontent\x18\x02 \x02(\t\x12\x12\n\nmac_method\x18\x03 \x02(\t\x12\x0b\n\x03mac\x18\x04 \x02(\x0c\x12\x12\n\nenc_method\x18\x05 \x01(\t\x12\x16\n\x0e\x65rror_occurred\x18\x06 \x01(\x08\"j\n\x0fRegisterRequest\x12(\n\x05\x65vent\x18\x01 \x02(\x0e\x32\x19.leap.common.events.Event\x12\x0c\n\x04port\x18\x02 \x02(\x05\x12\x12\n\nmac_method\x18\x03 \x02(\t\x12\x0b\n\x03mac\x18\x04 \x02(\x0c\"l\n\x11UnregisterRequest\x12(\n\x05\x65vent\x18\x01 \x02(\x0e\x32\x19.leap.common.events.Event\x12\x0c\n\x04port\x18\x02 \x02(\x05\x12\x12\n\nmac_method\x18\x03 \x02(\t\x12\x0b\n\x03mac\x18\x04 \x02(\x0c\"\r\n\x0bPingRequest\"\x82\x01\n\rEventResponse\x12\x38\n\x06status\x18\x01 \x02(\x0e\x32(.leap.common.events.EventResponse.Status\x12\x0e\n\x06result\x18\x02 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-_EVENT = descriptor.EnumDescriptor( +_EVENT = _descriptor.EnumDescriptor( name='Event', full_name='leap.common.events.Event', filename=None, file=DESCRIPTOR, values=[ - descriptor.EnumValueDescriptor( + _descriptor.EnumValueDescriptor( name='CLIENT_SESSION_ID', index=0, number=1, options=None, type=None), - descriptor.EnumValueDescriptor( + _descriptor.EnumValueDescriptor( name='CLIENT_UID', index=1, number=2, options=None, type=None), - descriptor.EnumValueDescriptor( + _descriptor.EnumValueDescriptor( name='SOLEDAD_CREATING_KEYS', index=2, number=3, options=None, type=None), - descriptor.EnumValueDescriptor( + _descriptor.EnumValueDescriptor( name='SOLEDAD_DONE_CREATING_KEYS', index=3, number=4, options=None, type=None), - descriptor.EnumValueDescriptor( + _descriptor.EnumValueDescriptor( name='SOLEDAD_UPLOADING_KEYS', index=4, number=5, options=None, type=None), - descriptor.EnumValueDescriptor( + _descriptor.EnumValueDescriptor( name='SOLEDAD_DONE_UPLOADING_KEYS', index=5, number=6, options=None, type=None), - descriptor.EnumValueDescriptor( + _descriptor.EnumValueDescriptor( name='SOLEDAD_DOWNLOADING_KEYS', index=6, number=7, options=None, type=None), - descriptor.EnumValueDescriptor( + _descriptor.EnumValueDescriptor( name='SOLEDAD_DONE_DOWNLOADING_KEYS', index=7, number=8, options=None, type=None), - descriptor.EnumValueDescriptor( + _descriptor.EnumValueDescriptor( name='SOLEDAD_NEW_DATA_TO_SYNC', index=8, number=9, options=None, type=None), - descriptor.EnumValueDescriptor( + _descriptor.EnumValueDescriptor( name='SOLEDAD_DONE_DATA_SYNC', index=9, number=10, options=None, type=None), - descriptor.EnumValueDescriptor( + _descriptor.EnumValueDescriptor( name='UPDATER_NEW_UPDATES', index=10, number=11, options=None, type=None), - descriptor.EnumValueDescriptor( + _descriptor.EnumValueDescriptor( name='UPDATER_DONE_UPDATING', index=11, number=12, options=None, type=None), - descriptor.EnumValueDescriptor( + _descriptor.EnumValueDescriptor( name='RAISE_WINDOW', index=12, number=13, options=None, type=None), ], containing_type=None, options=None, - serialized_start=432, - serialized_end=791, + serialized_start=557, + serialized_end=916, ) - +Event = enum_type_wrapper.EnumTypeWrapper(_EVENT) CLIENT_SESSION_ID = 1 CLIENT_UID = 2 SOLEDAD_CREATING_KEYS = 3 @@ -95,240 +97,349 @@ UPDATER_DONE_UPDATING = 12 RAISE_WINDOW = 13 -_EVENTRESPONSE_STATUS = descriptor.EnumDescriptor( +_EVENTRESPONSE_STATUS = _descriptor.EnumDescriptor( name='Status', full_name='leap.common.events.EventResponse.Status', filename=None, file=DESCRIPTOR, values=[ - descriptor.EnumValueDescriptor( + _descriptor.EnumValueDescriptor( name='OK', index=0, number=1, options=None, type=None), - descriptor.EnumValueDescriptor( + _descriptor.EnumValueDescriptor( name='UNAUTH', index=1, number=2, options=None, type=None), - descriptor.EnumValueDescriptor( + _descriptor.EnumValueDescriptor( name='ERROR', index=2, number=3, options=None, type=None), ], containing_type=None, options=None, - serialized_start=390, - serialized_end=429, + serialized_start=515, + serialized_end=554, ) -_SIGNALREQUEST = descriptor.Descriptor( +_SIGNALREQUEST = _descriptor.Descriptor( name='SignalRequest', full_name='leap.common.events.SignalRequest', filename=None, file=DESCRIPTOR, containing_type=None, fields=[ - descriptor.FieldDescriptor( + _descriptor.FieldDescriptor( name='event', full_name='leap.common.events.SignalRequest.event', index=0, number=1, type=14, cpp_type=8, label=2, has_default_value=False, default_value=1, - message_type=None, enum_type=None, containing_type=None, - is_extension=False, extension_scope=None, - options=None), - descriptor.FieldDescriptor( - name='content', full_name='leap.common.events.SignalRequest.content', index=1, - number=2, type=9, cpp_type=9, label=2, - has_default_value=False, default_value=unicode("", "utf-8"), - message_type=None, enum_type=None, containing_type=None, - is_extension=False, extension_scope=None, - options=None), - descriptor.FieldDescriptor( - name='mac_method', full_name='leap.common.events.SignalRequest.mac_method', index=2, - number=3, type=9, cpp_type=9, label=2, - has_default_value=False, default_value=unicode("", "utf-8"), - message_type=None, enum_type=None, containing_type=None, - is_extension=False, extension_scope=None, - options=None), - descriptor.FieldDescriptor( - name='mac', full_name='leap.common.events.SignalRequest.mac', index=3, - number=4, type=12, cpp_type=9, label=2, - has_default_value=False, default_value="", - message_type=None, enum_type=None, containing_type=None, - is_extension=False, extension_scope=None, - options=None), - descriptor.FieldDescriptor( - name='enc_method', full_name='leap.common.events.SignalRequest.enc_method', index=4, - number=5, type=9, cpp_type=9, label=1, - has_default_value=False, default_value=unicode("", "utf-8"), - message_type=None, enum_type=None, containing_type=None, - is_extension=False, extension_scope=None, - options=None), - descriptor.FieldDescriptor( - name='error_occurred', full_name='leap.common.events.SignalRequest.error_occurred', index=5, - number=6, type=8, cpp_type=7, label=1, - has_default_value=False, default_value=False, - message_type=None, enum_type=None, containing_type=None, - is_extension=False, extension_scope=None, - options=None), - ], - extensions=[ - ], - nested_types=[], - enum_types=[ - ], - options=None, - is_extendable=False, - extension_ranges=[], - serialized_start=37, - serialized_end=188, + message_type=None, enum_type=None, containing_type=None, + is_extension=False, extension_scope=None, + options=None), + _descriptor.FieldDescriptor( + name='content', full_name='leap.common.events.SignalRequest.content', index=1, + number=2, type=9, cpp_type=9, label=2, + has_default_value=False, default_value=unicode("", "utf-8"), + message_type=None, enum_type=None, containing_type=None, + is_extension=False, extension_scope=None, + options=None), + _descriptor.FieldDescriptor( + name='mac_method', full_name='leap.common.events.SignalRequest.mac_method', index=2, + number=3, type=9, cpp_type=9, label=2, + has_default_value=False, default_value=unicode("", "utf-8"), + message_type=None, enum_type=None, containing_type=None, + is_extension=False, extension_scope=None, + options=None), + _descriptor.FieldDescriptor( + name='mac', full_name='leap.common.events.SignalRequest.mac', index=3, + number=4, type=12, cpp_type=9, label=2, + has_default_value=False, default_value="", + message_type=None, enum_type=None, containing_type=None, + is_extension=False, extension_scope=None, + options=None), + _descriptor.FieldDescriptor( + name='enc_method', full_name='leap.common.events.SignalRequest.enc_method', index=4, + number=5, type=9, cpp_type=9, label=1, + has_default_value=False, default_value=unicode("", "utf-8"), + message_type=None, enum_type=None, containing_type=None, + is_extension=False, extension_scope=None, + options=None), + _descriptor.FieldDescriptor( + name='error_occurred', full_name='leap.common.events.SignalRequest.error_occurred', index=5, + number=6, type=8, cpp_type=7, label=1, + has_default_value=False, default_value=False, + message_type=None, enum_type=None, containing_type=None, + is_extension=False, extension_scope=None, + options=None), + ], + extensions=[ + ], + nested_types=[], + enum_types=[ + ], + options=None, + is_extendable=False, + extension_ranges=[], + serialized_start=37, + serialized_end=188, +) + + +_REGISTERREQUEST = _descriptor.Descriptor( + name='RegisterRequest', + full_name='leap.common.events.RegisterRequest', + filename=None, + file=DESCRIPTOR, + containing_type=None, + fields=[ + _descriptor.FieldDescriptor( + name='event', full_name='leap.common.events.RegisterRequest.event', index=0, + number=1, type=14, cpp_type=8, label=2, + has_default_value=False, default_value=1, + message_type=None, enum_type=None, containing_type=None, + is_extension=False, extension_scope=None, + options=None), + _descriptor.FieldDescriptor( + name='port', full_name='leap.common.events.RegisterRequest.port', index=1, + number=2, type=5, cpp_type=1, label=2, + has_default_value=False, default_value=0, + message_type=None, enum_type=None, containing_type=None, + is_extension=False, extension_scope=None, + options=None), + _descriptor.FieldDescriptor( + name='mac_method', full_name='leap.common.events.RegisterRequest.mac_method', index=2, + number=3, type=9, cpp_type=9, label=2, + has_default_value=False, default_value=unicode("", "utf-8"), + message_type=None, enum_type=None, containing_type=None, + is_extension=False, extension_scope=None, + options=None), + _descriptor.FieldDescriptor( + name='mac', full_name='leap.common.events.RegisterRequest.mac', index=3, + number=4, type=12, cpp_type=9, label=2, + has_default_value=False, default_value="", + message_type=None, enum_type=None, containing_type=None, + is_extension=False, extension_scope=None, + options=None), + ], + extensions=[ + ], + nested_types=[], + enum_types=[ + ], + options=None, + is_extendable=False, + extension_ranges=[], + serialized_start=190, + serialized_end=296, +) + + +_UNREGISTERREQUEST = _descriptor.Descriptor( + name='UnregisterRequest', + full_name='leap.common.events.UnregisterRequest', + filename=None, + file=DESCRIPTOR, + containing_type=None, + fields=[ + _descriptor.FieldDescriptor( + name='event', full_name='leap.common.events.UnregisterRequest.event', index=0, + number=1, type=14, cpp_type=8, label=2, + has_default_value=False, default_value=1, + message_type=None, enum_type=None, containing_type=None, + is_extension=False, extension_scope=None, + options=None), + _descriptor.FieldDescriptor( + name='port', full_name='leap.common.events.UnregisterRequest.port', index=1, + number=2, type=5, cpp_type=1, label=2, + has_default_value=False, default_value=0, + message_type=None, enum_type=None, containing_type=None, + is_extension=False, extension_scope=None, + options=None), + _descriptor.FieldDescriptor( + name='mac_method', full_name='leap.common.events.UnregisterRequest.mac_method', index=2, + number=3, type=9, cpp_type=9, label=2, + has_default_value=False, default_value=unicode("", "utf-8"), + message_type=None, enum_type=None, containing_type=None, + is_extension=False, extension_scope=None, + options=None), + _descriptor.FieldDescriptor( + name='mac', full_name='leap.common.events.UnregisterRequest.mac', index=3, + number=4, type=12, cpp_type=9, label=2, + has_default_value=False, default_value="", + message_type=None, enum_type=None, containing_type=None, + is_extension=False, extension_scope=None, + options=None), + ], + extensions=[ + ], + nested_types=[], + enum_types=[ + ], + options=None, + is_extendable=False, + extension_ranges=[], + serialized_start=298, + serialized_end=406, ) -_REGISTERREQUEST = descriptor.Descriptor( - name='RegisterRequest', - full_name='leap.common.events.RegisterRequest', - filename=None, - file=DESCRIPTOR, - containing_type=None, - fields=[ - descriptor.FieldDescriptor( - name='event', full_name='leap.common.events.RegisterRequest.event', index=0, - number=1, type=14, cpp_type=8, label=2, - has_default_value=False, default_value=1, - message_type=None, enum_type=None, containing_type=None, - is_extension=False, extension_scope=None, - options=None), - descriptor.FieldDescriptor( - name='port', full_name='leap.common.events.RegisterRequest.port', index=1, - number=2, type=5, cpp_type=1, label=2, - has_default_value=False, default_value=0, - message_type=None, enum_type=None, containing_type=None, - is_extension=False, extension_scope=None, - options=None), - descriptor.FieldDescriptor( - name='mac_method', full_name='leap.common.events.RegisterRequest.mac_method', index=2, - number=3, type=9, cpp_type=9, label=2, - has_default_value=False, default_value=unicode("", "utf-8"), - message_type=None, enum_type=None, containing_type=None, - is_extension=False, extension_scope=None, - options=None), - descriptor.FieldDescriptor( - name='mac', full_name='leap.common.events.RegisterRequest.mac', index=3, - number=4, type=12, cpp_type=9, label=2, - has_default_value=False, default_value="", - message_type=None, enum_type=None, containing_type=None, - is_extension=False, extension_scope=None, - options=None), - ], - extensions=[ - ], - nested_types=[], - enum_types=[ - ], - options=None, - is_extendable=False, - extension_ranges=[], - serialized_start=190, - serialized_end=296, +_PINGREQUEST = _descriptor.Descriptor( + name='PingRequest', + full_name='leap.common.events.PingRequest', + filename=None, + file=DESCRIPTOR, + containing_type=None, + fields=[ + ], + extensions=[ + ], + nested_types=[], + enum_types=[ + ], + options=None, + is_extendable=False, + extension_ranges=[], + serialized_start=408, + serialized_end=421, ) -_EVENTRESPONSE = descriptor.Descriptor( - name='EventResponse', - full_name='leap.common.events.EventResponse', - filename=None, - file=DESCRIPTOR, - containing_type=None, - fields=[ - descriptor.FieldDescriptor( - name='status', full_name='leap.common.events.EventResponse.status', index=0, - number=1, type=14, cpp_type=8, label=2, - has_default_value=False, default_value=1, - message_type=None, enum_type=None, containing_type=None, - is_extension=False, extension_scope=None, - options=None), - descriptor.FieldDescriptor( - name='result', full_name='leap.common.events.EventResponse.result', index=1, - number=2, type=9, cpp_type=9, label=1, - has_default_value=False, default_value=unicode("", "utf-8"), - message_type=None, enum_type=None, containing_type=None, - is_extension=False, extension_scope=None, - options=None), - ], - extensions=[ - ], - nested_types=[], - enum_types=[ - _EVENTRESPONSE_STATUS, - ], - options=None, - is_extendable=False, - extension_ranges=[], - serialized_start=299, - serialized_end=429, +_EVENTRESPONSE = _descriptor.Descriptor( + name='EventResponse', + full_name='leap.common.events.EventResponse', + filename=None, + file=DESCRIPTOR, + containing_type=None, + fields=[ + _descriptor.FieldDescriptor( + name='status', full_name='leap.common.events.EventResponse.status', index=0, + number=1, type=14, cpp_type=8, label=2, + has_default_value=False, default_value=1, + message_type=None, enum_type=None, containing_type=None, + is_extension=False, extension_scope=None, + options=None), + _descriptor.FieldDescriptor( + name='result', full_name='leap.common.events.EventResponse.result', index=1, + number=2, type=9, cpp_type=9, label=1, + has_default_value=False, default_value=unicode("", "utf-8"), + message_type=None, enum_type=None, containing_type=None, + is_extension=False, extension_scope=None, + options=None), + ], + extensions=[ + ], + nested_types=[], + enum_types=[ + _EVENTRESPONSE_STATUS, + ], + options=None, + is_extendable=False, + extension_ranges=[], + serialized_start=424, + serialized_end=554, ) _SIGNALREQUEST.fields_by_name['event'].enum_type = _EVENT _REGISTERREQUEST.fields_by_name['event'].enum_type = _EVENT +_UNREGISTERREQUEST.fields_by_name['event'].enum_type = _EVENT _EVENTRESPONSE.fields_by_name['status'].enum_type = _EVENTRESPONSE_STATUS -_EVENTRESPONSE_STATUS.containing_type = _EVENTRESPONSE; +_EVENTRESPONSE_STATUS.containing_type = _EVENTRESPONSE DESCRIPTOR.message_types_by_name['SignalRequest'] = _SIGNALREQUEST DESCRIPTOR.message_types_by_name['RegisterRequest'] = _REGISTERREQUEST +DESCRIPTOR.message_types_by_name['UnregisterRequest'] = _UNREGISTERREQUEST +DESCRIPTOR.message_types_by_name['PingRequest'] = _PINGREQUEST DESCRIPTOR.message_types_by_name['EventResponse'] = _EVENTRESPONSE -class SignalRequest(message.Message): - __metaclass__ = reflection.GeneratedProtocolMessageType +class SignalRequest(_message.Message): + __metaclass__ = _reflection.GeneratedProtocolMessageType DESCRIPTOR = _SIGNALREQUEST # @@protoc_insertion_point(class_scope:leap.common.events.SignalRequest) -class RegisterRequest(message.Message): - __metaclass__ = reflection.GeneratedProtocolMessageType +class RegisterRequest(_message.Message): + __metaclass__ = _reflection.GeneratedProtocolMessageType DESCRIPTOR = _REGISTERREQUEST # @@protoc_insertion_point(class_scope:leap.common.events.RegisterRequest) -class EventResponse(message.Message): - __metaclass__ = reflection.GeneratedProtocolMessageType +class UnregisterRequest(_message.Message): + __metaclass__ = _reflection.GeneratedProtocolMessageType + DESCRIPTOR = _UNREGISTERREQUEST + + # @@protoc_insertion_point(class_scope:leap.common.events.UnregisterRequest) + + +class PingRequest(_message.Message): + __metaclass__ = _reflection.GeneratedProtocolMessageType + DESCRIPTOR = _PINGREQUEST + + # @@protoc_insertion_point(class_scope:leap.common.events.PingRequest) + + +class EventResponse(_message.Message): + __metaclass__ = _reflection.GeneratedProtocolMessageType DESCRIPTOR = _EVENTRESPONSE # @@protoc_insertion_point(class_scope:leap.common.events.EventResponse) -_EVENTSSERVERSERVICE = descriptor.ServiceDescriptor( - name='EventsServerService', - full_name='leap.common.events.EventsServerService', - file=DESCRIPTOR, - index=0, - options=None, - serialized_start=794, - serialized_end=979, - methods=[ - descriptor.MethodDescriptor( - name='register', - full_name='leap.common.events.EventsServerService.register', +DESCRIPTOR.has_options = True +DESCRIPTOR._options = _descriptor._ParseOptions( + descriptor_pb2.FileOptions(), '\220\001\001') + +_EVENTSSERVERSERVICE = _descriptor.ServiceDescriptor( + name='EventsServerService', + full_name='leap.common.events.EventsServerService', + file=DESCRIPTOR, index=0, - containing_service=None, - input_type=_REGISTERREQUEST, - output_type=_EVENTRESPONSE, - options=None, - ), - descriptor.MethodDescriptor( - name='signal', - full_name='leap.common.events.EventsServerService.signal', - index=1, - containing_service=None, - input_type=_SIGNALREQUEST, - output_type=_EVENTRESPONSE, options=None, - ), -]) + serialized_start=919, + serialized_end=1268, + methods=[ + _descriptor.MethodDescriptor( + name='ping', + full_name='leap.common.events.EventsServerService.ping', + index=0, + containing_service=None, + input_type=_PINGREQUEST, + output_type=_EVENTRESPONSE, + options=None, + ), + _descriptor.MethodDescriptor( + name='register', + full_name='leap.common.events.EventsServerService.register', + index=1, + containing_service=None, + input_type=_REGISTERREQUEST, + output_type=_EVENTRESPONSE, + options=None, + ), + _descriptor.MethodDescriptor( + name='unregister', + full_name='leap.common.events.EventsServerService.unregister', + index=2, + containing_service=None, + input_type=_UNREGISTERREQUEST, + output_type=_EVENTRESPONSE, + options=None, + ), + _descriptor.MethodDescriptor( + name='signal', + full_name='leap.common.events.EventsServerService.signal', + index=3, + containing_service=None, + input_type=_SIGNALREQUEST, + output_type=_EVENTRESPONSE, + options=None, + ), + ]) -class EventsServerService(service.Service): +class EventsServerService(_service.Service): __metaclass__ = service_reflection.GeneratedServiceType DESCRIPTOR = _EVENTSSERVERSERVICE @@ -338,34 +449,43 @@ class EventsServerService_Stub(EventsServerService): DESCRIPTOR = _EVENTSSERVERSERVICE -_EVENTSCOMPONENTSERVICE = descriptor.ServiceDescriptor( - name='EventsComponentService', - full_name='leap.common.events.EventsComponentService', - file=DESCRIPTOR, - index=1, - options=None, - serialized_start=981, - serialized_end=1085, - methods=[ - descriptor.MethodDescriptor( - name='signal', - full_name='leap.common.events.EventsComponentService.signal', - index=0, - containing_service=None, - input_type=_SIGNALREQUEST, - output_type=_EVENTRESPONSE, +_EVENTSCLIENTSERVICE = _descriptor.ServiceDescriptor( + name='EventsClientService', + full_name='leap.common.events.EventsClientService', + file=DESCRIPTOR, + index=1, options=None, - ), -]) + serialized_start=1271, + serialized_end=1448, + methods=[ + _descriptor.MethodDescriptor( + name='ping', + full_name='leap.common.events.EventsClientService.ping', + index=0, + containing_service=None, + input_type=_PINGREQUEST, + output_type=_EVENTRESPONSE, + options=None, + ), + _descriptor.MethodDescriptor( + name='signal', + full_name='leap.common.events.EventsClientService.signal', + index=1, + containing_service=None, + input_type=_SIGNALREQUEST, + output_type=_EVENTRESPONSE, + options=None, + ), + ]) -class EventsComponentService(service.Service): +class EventsClientService(_service.Service): __metaclass__ = service_reflection.GeneratedServiceType - DESCRIPTOR = _EVENTSCOMPONENTSERVICE + DESCRIPTOR = _EVENTSCLIENTSERVICE -class EventsComponentService_Stub(EventsComponentService): +class EventsClientService_Stub(EventsClientService): __metaclass__ = service_reflection.GeneratedServiceStubType - DESCRIPTOR = _EVENTSCOMPONENTSERVICE + DESCRIPTOR = _EVENTSCLIENTSERVICE # @@protoc_insertion_point(module_scope) diff --git a/src/leap/common/events/server.py b/src/leap/common/events/server.py index 1f3a874..59f3454 100644 --- a/src/leap/common/events/server.py +++ b/src/leap/common/events/server.py @@ -17,12 +17,12 @@ """ A server for the events mechanism. -A server can receive different kinds of requests from components: +A server can receive different kinds of requests from clients: - 1. Registration request: store component port number to be notified when + 1. Registration request: store client port number to be notified when a specific signal arrives. - 2. Signal request: redistribute the signal to registered components. + 2. Signal request: redistribute the signal to registered clients. """ import logging import socket @@ -40,12 +40,19 @@ logger = logging.getLogger(__name__) SERVER_PORT = 8090 -# the `registered_components` dictionary below should have the following +# the `registered_clients` dictionary below should have the following # format: # # { event_signal: [ port, ... ], ... } # -registered_components = {} +registered_clients = {} + + +class PortAlreadyTaken(Exception): + """ + Raised when trying to open a server in a port that is already taken. + """ + pass def ensure_server(port=SERVER_PORT): @@ -60,71 +67,150 @@ def ensure_server(port=SERVER_PORT): :return: the daemon instance or nothing :rtype: EventsServerDaemon or None + + :raise PortAlreadyTaken: Raised if C{port} is already taken by something + that is not an events server. """ try: + # check if port is available s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) s.connect(('localhost', port)) s.close() - logger.info('Server is already running on port %d.', port) - return None + # port is taken, check if there's a server running there + response = ping(port) + if response is not None and response.status == proto.EventResponse.OK: + logger.info('A server is already running on port %d.', port) + return None + # port is taken, and not by an events server + logger.info('Port %d is taken by something not an events server.', port) + raise PortAlreadyTaken(port) except socket.error: + # port is available, run a server logger.info('Launching server on port %d.', port) return EventsServerDaemon.ensure(port) +def ping(port=SERVER_PORT, reqcbk=None, timeout=1000): + """ + Ping the server. + + :param port: the port in which server should be listening + :type port: int + :param reqcbk: a callback to be called when a response from server is + received + :type reqcbk: function(proto.PingRequest, proto.EventResponse) + :param timeout: the timeout for synch calls + :type timeout: int + + :return: the response from server for synch calls or nothing for asynch + calls. + :rtype: leap.common.events.events_pb2.EventsResponse or None + """ + request = proto.PingRequest() + service = RpcService( + proto.EventsServerService_Stub, + port, + 'localhost') + logger.info("Pinging server in port %d..." % port) + return service.ping(request, callback=reqcbk, timeout=timeout) + + class EventsServerService(proto.EventsServerService): """ - Service for receiving events in components. + Service for receiving events in clients. """ def register(self, controller, request, done): """ - Register a component port to be signaled when specific events come in. + Register a client port to be signaled when specific events come in. :param controller: used to mediate a single method call :type controller: protobuf.socketrpc.controller.SocketRpcController - :param request: the request received from the component + :param request: the request received from the client :type request: leap.common.events.events_pb2.RegisterRequest :param done: callback to be called when done :type done: protobuf.socketrpc.server.Callback """ logger.info("Received registration request: %s..." % str(request)[:40]) - # add component port to signal list - if request.event not in registered_components: - registered_components[request.event] = set([]) - registered_components[request.event].add(request.port) - # send response back to component + # add client port to signal list + if request.event not in registered_clients: + registered_clients[request.event] = set([]) + registered_clients[request.event].add(request.port) + # send response back to client logger.debug('sending response back') response = proto.EventResponse() response.status = proto.EventResponse.OK done.run(response) + def unregister(self, controller, request, done): + """ + Unregister a client port so it will not be signaled when specific + events come in. + + :param controller: used to mediate a single method call + :type controller: protobuf.socketrpc.controller.SocketRpcController + :param request: the request received from the client + :type request: leap.common.events.events_pb2.RegisterRequest + :param done: callback to be called when done + :type done: protobuf.socketrpc.server.Callback + """ + logger.info( + "Received unregistration request: %s..." % str(request)[:40]) + # remove client port from signal list + response = proto.EventResponse() + if request.event in registered_clients: + try: + registered_clients[request.event].remove(request.port) + response.status = proto.EventResponse.OK + except KeyError: + response.status = proto.EventsResponse.ERROR + response.result = 'Port %d not registered.' % request.port + # send response back to client + logger.debug('sending response back') + done.run(response) + def signal(self, controller, request, done): """ - Perform an RPC call to signal all components registered to receive a + Perform an RPC call to signal all clients registered to receive a specific signal. :param controller: used to mediate a single method call :type controller: protobuf.socketrpc.controller.SocketRpcController - :param request: the request received from the component + :param request: the request received from the client :type request: leap.common.events.events_pb2.SignalRequest :param done: callback to be called when done :type done: protobuf.socketrpc.server.Callback """ - logger.info('Received signal from component: %s...', str(request)[:40]) - # send signal to all registered components + logger.info('Received signal from client: %s...', str(request)[:40]) + # send signal to all registered clients # TODO: verify signal auth - if request.event in registered_components: - for port in registered_components[request.event]: + if request.event in registered_clients: + for port in registered_clients[request.event]: def callback(req, resp): logger.info("Signal received by " + str(port)) - service = RpcService(proto.EventsComponentService_Stub, + service = RpcService(proto.EventsClientService_Stub, port, 'localhost') service.signal(request, callback=callback) - # send response back to component + # send response back to client + response = proto.EventResponse() + response.status = proto.EventResponse.OK + done.run(response) + + def ping(self, controller, request, done): + """ + Reply to a ping request. + + :param controller: used to mediate a single method call + :type controller: protobuf.socketrpc.controller.SocketRpcController + :param request: the request received from the client + :type request: leap.common.events.events_pb2.RegisterRequest + :param done: callback to be called when done + :type done: protobuf.socketrpc.server.Callback + """ + logger.info("Received ping request, sending response.") response = proto.EventResponse() response.status = proto.EventResponse.OK done.run(response) diff --git a/src/leap/common/testing/basetest.py b/src/leap/common/testing/basetest.py index 8890bf9..54826d5 100644 --- a/src/leap/common/testing/basetest.py +++ b/src/leap/common/testing/basetest.py @@ -68,7 +68,8 @@ class BaseLeapTest(unittest.TestCase): # safety check! please do not wipe my home... # XXX needs to adapt to non-linuces leap_assert( - cls.tempdir.startswith('/tmp/leap_tests-'), + cls.tempdir.startswith('/tmp/leap_tests-') or + cls.tempdir.startswith('/var/folder'), "beware! tried to remove a dir which does not " "live in temporal folder!") shutil.rmtree(cls.tempdir) diff --git a/src/leap/common/tests/test_check.py b/src/leap/common/tests/test_check.py new file mode 100644 index 0000000..6ce8493 --- /dev/null +++ b/src/leap/common/tests/test_check.py @@ -0,0 +1,52 @@ +# -*- coding: utf-8 -*- +# test_check.py +# Copyright (C) 2013 LEAP +# +# 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 3 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, see <http://www.gnu.org/licenses/>. +""" +Tests for: + * leap/common/check.py +""" +try: + import unittest2 as unittest +except ImportError: + import unittest + +import mock + +from leap.common import check + +class CheckTests(unittest.TestCase): + def test_raises_on_false_condition(self): + with self.assertRaises(AssertionError): + check.leap_assert(False, "Condition") + + def test_raises_on_none_condition(self): + with self.assertRaises(AssertionError): + check.leap_assert(None, "Condition") + + def test_suceeds_with_good_condition(self): + check.leap_assert(True, "") + + def test_raises_on_bad_type(self): + with self.assertRaises(AssertionError): + check.leap_assert_type(42, str) + + def test_succeeds_on_good_type(self): + check.leap_assert_type(42, int) + + @mock.patch("traceback.extract_stack", mock.MagicMock(return_value=None)) + def test_does_not_raise_on_bug(self): + with self.assertRaises(AssertionError): + check.leap_assert(False, "") diff --git a/src/leap/common/tests/test_crypto.py b/src/leap/common/tests/test_crypto.py deleted file mode 100644 index ae7dc71..0000000 --- a/src/leap/common/tests/test_crypto.py +++ /dev/null @@ -1,88 +0,0 @@ -## -*- coding: utf-8 -*- -# test_crypto.py -# Copyright (C) 2013 LEAP -# -# 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 3 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, see <http://www.gnu.org/licenses/>. - - -""" -Tests for the crypto submodule. -""" - - -import os -import binascii - - -from leap.common.testing.basetest import BaseLeapTest -from leap.common import crypto -from Crypto import Random - - -class CryptoTestCase(BaseLeapTest): - - def setUp(self): - pass - - def tearDown(self): - pass - - def test_encrypt_decrypt_sym(self): - # generate 256-bit key - key = Random.new().read(32) - iv, cyphertext = crypto.encrypt_sym( - 'data', key, - method=crypto.EncryptionMethods.AES_256_CTR) - self.assertTrue(cyphertext is not None) - self.assertTrue(cyphertext != '') - self.assertTrue(cyphertext != 'data') - plaintext = crypto.decrypt_sym( - cyphertext, key, iv=iv, - method=crypto.EncryptionMethods.AES_256_CTR) - self.assertEqual('data', plaintext) - - def test_decrypt_with_wrong_iv_fails(self): - key = Random.new().read(32) - iv, cyphertext = crypto.encrypt_sym( - 'data', key, - method=crypto.EncryptionMethods.AES_256_CTR) - self.assertTrue(cyphertext is not None) - self.assertTrue(cyphertext != '') - self.assertTrue(cyphertext != 'data') - # get a different iv by changing the first byte - rawiv = binascii.a2b_base64(iv) - wrongiv = rawiv - while wrongiv == rawiv: - wrongiv = os.urandom(1) + rawiv[1:] - plaintext = crypto.decrypt_sym( - cyphertext, key, iv=binascii.b2a_base64(wrongiv), - method=crypto.EncryptionMethods.AES_256_CTR) - self.assertNotEqual('data', plaintext) - - def test_decrypt_with_wrong_key_fails(self): - key = Random.new().read(32) - iv, cyphertext = crypto.encrypt_sym( - 'data', key, - method=crypto.EncryptionMethods.AES_256_CTR) - self.assertTrue(cyphertext is not None) - self.assertTrue(cyphertext != '') - self.assertTrue(cyphertext != 'data') - wrongkey = Random.new().read(32) # 256-bits key - # ensure keys are different in case we are extremely lucky - while wrongkey == key: - wrongkey = Random.new().read(32) - plaintext = crypto.decrypt_sym( - cyphertext, wrongkey, iv=iv, - method=crypto.EncryptionMethods.AES_256_CTR) - self.assertNotEqual('data', plaintext) diff --git a/src/leap/common/tests/test_events.py b/src/leap/common/tests/test_events.py index 8c0bd36..0779b2e 100644 --- a/src/leap/common/tests/test_events.py +++ b/src/leap/common/tests/test_events.py @@ -18,19 +18,27 @@ import unittest import sets import time +import socket +import threading +import random + + +from mock import Mock from protobuf.socketrpc import RpcService from leap.common import events from leap.common.events import ( server, - component, + client, mac_auth, ) from leap.common.events.events_pb2 import ( EventsServerService, EventsServerService_Stub, + EventsClientService_Stub, EventResponse, SignalRequest, RegisterRequest, + PingRequest, SOLEDAD_CREATING_KEYS, CLIENT_UID, ) @@ -39,11 +47,6 @@ from leap.common.events.events_pb2 import ( port = 8090 received = False -local_callback_executed = False - - -def callback(request, reponse): - return True class EventsTestCase(unittest.TestCase): @@ -51,7 +54,7 @@ class EventsTestCase(unittest.TestCase): @classmethod def setUpClass(cls): server.EventsServerDaemon.ensure(8090) - cls.callbacks = events.component.registered_callbacks + cls.callbacks = events.client.registered_callbacks @classmethod def tearDownClass(cls): @@ -62,8 +65,8 @@ class EventsTestCase(unittest.TestCase): super(EventsTestCase, self).setUp() def tearDown(self): - #events.component.registered_callbacks = {} - server.registered_components = {} + #events.client.registered_callbacks = {} + server.registered_clients = {} super(EventsTestCase, self).tearDown() def test_service_singleton(self): @@ -76,24 +79,24 @@ class EventsTestCase(unittest.TestCase): self.assertEqual(service1, service2, "Can't get singleton class for service.") - def test_component_register(self): + def test_client_register(self): """ - Ensure components can register callbacks. + Ensure clients can register callbacks. """ self.assertTrue(1 not in self.callbacks, 'There should should be no callback for this signal.') events.register(1, lambda x: True) self.assertTrue(1 in self.callbacks, - 'Could not register signal in local component.') + 'Could not register signal in local client.') events.register(2, lambda x: True) self.assertTrue(1 in self.callbacks, - 'Could not register signal in local component.') + 'Could not register signal in local client.') self.assertTrue(2 in self.callbacks, - 'Could not register signal in local component.') + 'Could not register signal in local client.') def test_register_signal_replace(self): """ - Make sure components can replace already registered callbacks. + Make sure clients can replace already registered callbacks. """ sig = 3 cbk = lambda x: True @@ -120,21 +123,32 @@ class EventsTestCase(unittest.TestCase): response = service.signal(request, timeout=1000) self.assertEqual(EventResponse.OK, response.status, 'Wrong response status.') - # test asynch - def local_callback(request, response): - global local_callback_executed - local_callback_executed = True + def test_signal_executes_callback(self): + """ + Ensure callback is executed upon receiving signal. + """ + sig = CLIENT_UID + request = SignalRequest() + request.event = sig + request.content = 'my signal contents' + request.mac_method = mac_auth.MacMethod.MAC_NONE + request.mac = "" + service = RpcService(EventsServerService_Stub, port, 'localhost') - events.register(sig, local_callback) - service.signal(request, callback=local_callback) - time.sleep(0.1) - self.assertTrue(local_callback_executed, - 'Local callback did not execute.') + # register a callback + flag = Mock() + events.register(sig, lambda req: flag(req.event)) + # signal + response = service.signal(request) + self.assertEqual(EventResponse.OK, response.status, + 'Wrong response status.') + time.sleep(1) # wait for signal to arrive + flag.assert_called_once_with(sig) def test_events_server_service_register(self): """ - Ensure the server can register components to be signaled. + Ensure the server can register clients to be signaled. """ sig = 5 request = RegisterRequest() @@ -143,42 +157,39 @@ class EventsTestCase(unittest.TestCase): request.mac_method = mac_auth.MacMethod.MAC_NONE request.mac = "" service = RpcService(EventsServerService_Stub, port, 'localhost') - complist = server.registered_components + complist = server.registered_clients self.assertEqual({}, complist, 'There should be no registered_ports when ' 'server has just been created.') response = service.register(request, timeout=1000) self.assertTrue(sig in complist, "Signal not registered succesfully.") self.assertTrue(8091 in complist[sig], - 'Failed registering component port.') + 'Failed registering client port.') - def test_component_request_register(self): + def test_client_request_register(self): """ - Ensure components can register themselves with server. + Ensure clients can register themselves with server. """ sig = 6 - complist = server.registered_components + complist = server.registered_clients self.assertTrue(sig not in complist, - 'There should be no registered components for this ' + 'There should be no registered clients for this ' 'signal.') events.register(sig, lambda x: True) time.sleep(0.1) - port = component.EventsComponentDaemon.get_instance().get_port() - self.assertTrue(sig in complist, 'Failed registering component.') + port = client.EventsClientDaemon.get_instance().get_port() + self.assertTrue(sig in complist, 'Failed registering client.') self.assertTrue(port in complist[sig], - 'Failed registering component port.') + 'Failed registering client port.') - def test_component_receives_signal(self): + def test_client_receives_signal(self): """ - Ensure components can receive signals. + Ensure clients can receive signals. """ sig = 7 + flag = Mock() - def getsig(param=None): - global received - received = True - - events.register(sig, getsig) + events.register(sig, lambda req: flag(req.event)) request = SignalRequest() request.event = sig request.content = "" @@ -188,13 +199,230 @@ class EventsTestCase(unittest.TestCase): response = service.signal(request, timeout=1000) self.assertTrue(response is not None, 'Did not receive response.') time.sleep(0.5) - self.assertTrue(received, 'Did not receive signal back.') + flag.assert_called_once_with(sig) - def test_component_send_signal(self): + def test_client_send_signal(self): """ - Ensure components can send signals. + Ensure clients can send signals. """ sig = 8 response = events.signal(sig) self.assertTrue(response.status == response.OK, 'Received wrong response status when signaling.') + + def test_client_unregister_all(self): + """ + Test that the client can unregister all events for one signal. + """ + sig = CLIENT_UID + complist = server.registered_clients + events.register(sig, lambda x: True) + events.register(sig, lambda x: True) + time.sleep(0.1) + events.unregister(sig) + time.sleep(0.1) + port = client.EventsClientDaemon.get_instance().get_port() + self.assertFalse(bool(complist[sig])) + self.assertTrue(port not in complist[sig]) + + def test_client_unregister_by_uid(self): + """ + Test that the client can unregister an event by uid. + """ + sig = CLIENT_UID + complist = server.registered_clients + events.register(sig, lambda x: True, uid='cbkuid') + events.register(sig, lambda x: True, uid='cbkuid2') + time.sleep(0.1) + events.unregister(sig, uid='cbkuid') + time.sleep(0.1) + port = client.EventsClientDaemon.get_instance().get_port() + self.assertTrue(sig in complist) + self.assertTrue(len(complist[sig]) == 1) + self.assertTrue( + client.registered_callbacks[sig].pop()[0] == 'cbkuid2') + self.assertTrue(port in complist[sig]) + + def test_server_replies_ping(self): + """ + Ensure server replies to a ping. + """ + request = PingRequest() + service = RpcService(EventsServerService_Stub, port, 'localhost') + response = service.ping(request, timeout=1000) + self.assertIsNotNone(response) + self.assertEqual(EventResponse.OK, response.status, + 'Wrong response status.') + + def test_client_replies_ping(self): + """ + Ensure clients reply to a ping. + """ + daemon = client.ensure_client_daemon() + port = daemon.get_port() + request = PingRequest() + service = RpcService(EventsClientService_Stub, port, 'localhost') + response = service.ping(request, timeout=1000) + self.assertEqual(EventResponse.OK, response.status, + 'Wrong response status.') + + def test_server_ping(self): + """ + Ensure the function from server module pings correctly. + """ + response = server.ping() + self.assertIsNotNone(response) + self.assertEqual(EventResponse.OK, response.status, + 'Wrong response status.') + + def test_client_ping(self): + """ + Ensure the function from client module pings correctly. + """ + daemon = client.ensure_client_daemon() + response = client.ping(daemon.get_port()) + self.assertIsNotNone(response) + self.assertEqual(EventResponse.OK, response.status, + 'Wrong response status.') + + def test_module_ping_server(self): + """ + Ensure the function from main module pings server correctly. + """ + response = events.ping_server() + self.assertIsNotNone(response) + self.assertEqual(EventResponse.OK, response.status, + 'Wrong response status.') + + def test_module_ping_client(self): + """ + Ensure the function from main module pings clients correctly. + """ + daemon = client.ensure_client_daemon() + response = events.ping_client(daemon.get_port()) + self.assertIsNotNone(response) + self.assertEqual(EventResponse.OK, response.status, + 'Wrong response status.') + + def test_ensure_server_raises_if_port_taken(self): + """ + Verify that server raises an exception if port is already taken. + """ + # get a random free port + while True: + port = random.randint(1024, 65535) + try: + s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) + s.connect(('localhost', port)) + s.close() + except: + break + + class PortBlocker(threading.Thread): + + def run(self): + conns = 0 + s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) + s.bind(('localhost', port)) + s.setblocking(1) + s.listen(1) + while conns < 2: # blocks until rece + conns += 1 + s.accept() + s.close() + + # block the port + taker = PortBlocker() + taker.start() + time.sleep(1) # wait for thread to start. + self.assertRaises( + server.PortAlreadyTaken, server.ensure_server, port) + + def test_async_register(self): + """ + Test asynchronous registering of callbacks. + """ + flag = Mock() + + # executed after async register, when response is received from server + def reqcbk(request, response): + flag(request.event, response.status) + + # callback registered by application + def callback(request): + pass + + # passing a callback as reqcbk param makes the call asynchronous + result = events.register(CLIENT_UID, callback, reqcbk=reqcbk) + self.assertIsNone(result) + events.signal(CLIENT_UID) + time.sleep(1) # wait for signal to arrive from server + flag.assert_called_once_with(CLIENT_UID, EventResponse.OK) + + def test_async_signal(self): + """ + Test asynchronous registering of callbacks. + """ + flag = Mock() + + # executed after async signal, when response is received from server + def reqcbk(request, response): + flag(request.event, response.status) + + # passing a callback as reqcbk param makes the call asynchronous + result = events.signal(CLIENT_UID, reqcbk=reqcbk) + self.assertIsNone(result) + time.sleep(1) # wait for signal to arrive from server + flag.assert_called_once_with(CLIENT_UID, EventResponse.OK) + + def test_async_unregister(self): + """ + Test asynchronous unregistering of callbacks. + """ + flag = Mock() + + # executed after async signal, when response is received from server + def reqcbk(request, response): + flag(request.event, response.status) + + # callback registered by application + def callback(request): + pass + + # passing a callback as reqcbk param makes the call asynchronous + events.register(CLIENT_UID, callback) + result = events.unregister(CLIENT_UID, reqcbk=reqcbk) + self.assertIsNone(result) + time.sleep(1) # wait for signal to arrive from server + flag.assert_called_once_with(CLIENT_UID, EventResponse.OK) + + def test_async_ping_server(self): + """ + Test asynchronous pinging of server. + """ + flag = Mock() + + # executed after async signal, when response is received from server + def reqcbk(request, response): + flag(response.status) + + result = events.ping_server(reqcbk=reqcbk) + self.assertIsNone(result) + time.sleep(1) # wait for response to arrive from server. + flag.assert_called_once_with(EventResponse.OK) + + def test_async_ping_client(self): + """ + Test asynchronous pinging of client. + """ + flag = Mock() + + # executed after async signal, when response is received from server + def reqcbk(request, response): + flag(response.status) + + daemon = client.ensure_client_daemon() + result = events.ping_client(daemon.get_port(), reqcbk=reqcbk) + self.assertIsNone(result) + time.sleep(1) # wait for response to arrive from server. + flag.assert_called_once_with(EventResponse.OK) |