forked from MirrorHub/synapse
Error if macaroon key is missing from config
Currently we store all access tokens in the DB, and fall back to that check if we can't validate the macaroon, so our fallback works here, but for guests, their macaroons don't get persisted, so we don't get to find them in the database. Each restart, we generate a new ephemeral key, so guests lose access after each server restart. I tried to fix up the config stuff to be less insane, but gave up, so instead I bolt on yet another piece of custom one-off insanity. Also, add some basic tests for config generation and loading.
This commit is contained in:
parent
34dda7cc7f
commit
6a9f1209df
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@ -24,6 +24,7 @@ import resource
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import subprocess
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import sys
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import time
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from synapse.config._base import ConfigError
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from synapse.python_dependencies import (
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check_requirements, DEPENDENCY_LINKS
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@ -350,11 +351,20 @@ def setup(config_options):
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Returns:
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HomeServer
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"""
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try:
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config = HomeServerConfig.load_config(
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"Synapse Homeserver",
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config_options,
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generate_section="Homeserver"
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)
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except ConfigError as e:
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sys.stderr.write("\n" + e.message + "\n")
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sys.exit(1)
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if not config:
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# If a config isn't returned, and an exception isn't raised, we're just
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# generating config files and shouldn't try to continue.
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sys.exit(0)
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config.setup_logging()
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@ -12,6 +12,7 @@
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from synapse.config._base import ConfigError
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if __name__ == "__main__":
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import sys
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@ -21,7 +22,11 @@ if __name__ == "__main__":
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if action == "read":
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key = sys.argv[2]
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try:
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config = HomeServerConfig.load_config("", sys.argv[3:])
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except ConfigError as e:
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sys.stderr.write("\n" + e.message + "\n")
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sys.exit(1)
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print getattr(config, key)
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sys.exit(0)
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@ -17,7 +17,6 @@ import argparse
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import errno
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import os
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import yaml
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import sys
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from textwrap import dedent
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@ -136,13 +135,20 @@ class Config(object):
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results.append(getattr(cls, name)(self, *args, **kargs))
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return results
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def generate_config(self, config_dir_path, server_name, report_stats=None):
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def generate_config(
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self,
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config_dir_path,
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server_name,
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is_generating_file,
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report_stats=None,
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):
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default_config = "# vim:ft=yaml\n"
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default_config += "\n\n".join(dedent(conf) for conf in self.invoke_all(
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"default_config",
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config_dir_path=config_dir_path,
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server_name=server_name,
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is_generating_file=is_generating_file,
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report_stats=report_stats,
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))
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@ -244,8 +250,10 @@ class Config(object):
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server_name = config_args.server_name
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if not server_name:
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print "Must specify a server_name to a generate config for."
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sys.exit(1)
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raise ConfigError(
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"Must specify a server_name to a generate config for."
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" Pass -H server.name."
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)
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if not os.path.exists(config_dir_path):
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os.makedirs(config_dir_path)
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with open(config_path, "wb") as config_file:
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@ -253,6 +261,7 @@ class Config(object):
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config_dir_path=config_dir_path,
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server_name=server_name,
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report_stats=(config_args.report_stats == "yes"),
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is_generating_file=True
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)
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obj.invoke_all("generate_files", config)
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config_file.write(config_bytes)
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@ -266,7 +275,7 @@ class Config(object):
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"If this server name is incorrect, you will need to"
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" regenerate the SSL certificates"
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)
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sys.exit(0)
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return
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else:
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print (
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"Config file %r already exists. Generating any missing key"
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@ -302,25 +311,25 @@ class Config(object):
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specified_config.update(yaml_config)
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if "server_name" not in specified_config:
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sys.stderr.write("\n" + MISSING_SERVER_NAME + "\n")
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sys.exit(1)
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raise ConfigError(MISSING_SERVER_NAME)
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server_name = specified_config["server_name"]
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_, config = obj.generate_config(
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config_dir_path=config_dir_path,
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server_name=server_name
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server_name=server_name,
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is_generating_file=False,
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)
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config.pop("log_config")
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config.update(specified_config)
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if "report_stats" not in config:
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sys.stderr.write(
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"\n" + MISSING_REPORT_STATS_CONFIG_INSTRUCTIONS + "\n" +
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MISSING_REPORT_STATS_SPIEL + "\n")
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sys.exit(1)
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raise ConfigError(
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MISSING_REPORT_STATS_CONFIG_INSTRUCTIONS + "\n" +
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MISSING_REPORT_STATS_SPIEL
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)
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if generate_keys:
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obj.invoke_all("generate_files", config)
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sys.exit(0)
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return
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obj.invoke_all("read_config", config)
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@ -33,12 +33,24 @@ class RegistrationConfig(Config):
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self.registration_shared_secret = config.get("registration_shared_secret")
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self.macaroon_secret_key = config.get("macaroon_secret_key")
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if self.macaroon_secret_key is None:
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raise Exception(
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"Config is missing missing macaroon_secret_key - please set it"
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" in your config file."
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)
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self.bcrypt_rounds = config.get("bcrypt_rounds", 12)
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self.trusted_third_party_id_servers = config["trusted_third_party_id_servers"]
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self.allow_guest_access = config.get("allow_guest_access", False)
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def default_config(self, **kwargs):
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def default_config(self, is_generating_file=False, **kwargs):
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registration_shared_secret = random_string_with_symbols(50)
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macaroon_line = ""
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if is_generating_file:
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macaroon_line += '\n macaroon_secret_key: "%s"\n' % (
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random_string_with_symbols(50),
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)
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macaroon_secret_key = random_string_with_symbols(50)
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return """\
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## Registration ##
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@ -49,9 +61,7 @@ class RegistrationConfig(Config):
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# If set, allows registration by anyone who also has the shared
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# secret, even if registration is otherwise disabled.
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registration_shared_secret: "%(registration_shared_secret)s"
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macaroon_secret_key: "%(macaroon_secret_key)s"
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%(macaroon_line)s
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# Set the number of bcrypt rounds used to generate password hash.
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# Larger numbers increase the work factor needed to generate the hash.
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# The default number of rounds is 12.
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14
tests/config/__init__.py
Normal file
14
tests/config/__init__.py
Normal file
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@ -0,0 +1,14 @@
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# -*- coding: utf-8 -*-
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# Copyright 2016 OpenMarket Ltd
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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50
tests/config/test_generate.py
Normal file
50
tests/config/test_generate.py
Normal file
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@ -0,0 +1,50 @@
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# -*- coding: utf-8 -*-
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# Copyright 2016 OpenMarket Ltd
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import os.path
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import shutil
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import tempfile
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from synapse.config.homeserver import HomeServerConfig
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from tests import unittest
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class ConfigGenerationTestCase(unittest.TestCase):
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def setUp(self):
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self.dir = tempfile.mkdtemp()
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print self.dir
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self.file = os.path.join(self.dir, "homeserver.yaml")
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def tearDown(self):
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shutil.rmtree(self.dir)
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def test_generate_config_generates_files(self):
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HomeServerConfig.load_config("", [
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"--generate-config",
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"-c", self.file,
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"--report-stats=yes",
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"-H", "lemurs.win"
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])
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self.assertSetEqual(
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set([
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"homeserver.yaml",
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"lemurs.win.log.config",
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"lemurs.win.signing.key",
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"lemurs.win.tls.crt",
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"lemurs.win.tls.dh",
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"lemurs.win.tls.key",
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]),
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set(os.listdir(self.dir))
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)
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tests/config/test_load.py
Normal file
77
tests/config/test_load.py
Normal file
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# -*- coding: utf-8 -*-
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# Copyright 2016 OpenMarket Ltd
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import os.path
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import shutil
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import tempfile
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import yaml
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from synapse.config.homeserver import HomeServerConfig
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from tests import unittest
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class ConfigLoadingTestCase(unittest.TestCase):
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def setUp(self):
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self.dir = tempfile.mkdtemp()
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print self.dir
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self.file = os.path.join(self.dir, "homeserver.yaml")
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def tearDown(self):
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shutil.rmtree(self.dir)
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def test_load_fails_if_server_name_missing(self):
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self.generate_config_and_remove_lines_containing("server_name")
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with self.assertRaises(Exception):
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HomeServerConfig.load_config("", ["-c", self.file])
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def test_generates_and_loads_macaroon_secret_key(self):
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self.generate_config()
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with open(self.file,
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"r") as f:
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raw = yaml.load(f)
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self.assertIn("macaroon_secret_key", raw)
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config = HomeServerConfig.load_config("", ["-c", self.file])
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self.assertTrue(
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hasattr(config, "macaroon_secret_key"),
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"Want config to have attr macaroon_secret_key"
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)
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if len(config.macaroon_secret_key) < 5:
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self.fail(
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"Want macaroon secret key to be string of at least length 5,"
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"was: %r" % (config.macaroon_secret_key,)
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)
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def test_load_fails_if_macaroon_secret_key_missing(self):
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self.generate_config_and_remove_lines_containing("macaroon")
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with self.assertRaises(Exception):
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HomeServerConfig.load_config("", ["-c", self.file])
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def generate_config(self):
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HomeServerConfig.load_config("", [
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"--generate-config",
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"-c", self.file,
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"--report-stats=yes",
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"-H", "lemurs.win"
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])
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def generate_config_and_remove_lines_containing(self, needle):
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self.generate_config()
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with open(self.file, "r") as f:
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contents = f.readlines()
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contents = [l for l in contents if needle not in l]
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with open(self.file, "w") as f:
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f.write("".join(contents))
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