diff options
Diffstat (limited to 'src/leap/bonafide/config.py')
| -rw-r--r-- | src/leap/bonafide/config.py | 260 |
1 files changed, 236 insertions, 24 deletions
diff --git a/src/leap/bonafide/config.py b/src/leap/bonafide/config.py index 9490f55..afc59fc 100644 --- a/src/leap/bonafide/config.py +++ b/src/leap/bonafide/config.py @@ -18,14 +18,22 @@ Configuration for a LEAP provider. """ import datetime +import json import os import sys +from twisted.internet import defer, reactor +from twisted.internet.ssl import ClientContextFactory +from twisted.python import log +from twisted.web.client import Agent, downloadPage + from leap.bonafide._http import httpRequest +from leap.bonafide.provider import Discovery from leap.common.check import leap_assert from leap.common.config import get_path_prefix as common_get_path_prefix -from leap.common.files import check_and_fix_urw_only, get_mtime, mkdir_p +from leap.common.files import mkdir_p +# check_and_fix_urw_only, get_mtime APPNAME = "bonafide" @@ -36,17 +44,24 @@ def get_path_prefix(standalone=False): return common_get_path_prefix(standalone) -def get_provider_path(domain): +def get_provider_path(domain, config='provider.json'): """ - Returns relative path for provider config. + Returns relative path for provider configs. :param domain: the domain to which this providerconfig belongs to. :type domain: str :returns: the path :rtype: str """ - leap_assert(domain is not None, "get_provider_path: We need a domain") - return os.path.join("leap", "providers", domain, "provider.json") + # TODO sanitize domain + leap_assert(domain is not None, 'get_provider_path: We need a domain') + return os.path.join('providers', domain, config) + + +def get_ca_cert_path(domain): + # TODO sanitize domain + leap_assert(domain is not None, 'get_provider_path: We need a domain') + return os.path.join('providers', domain, 'keys', 'ca', 'cacert.pem') def get_modification_ts(path): @@ -99,28 +114,88 @@ def make_address(user, provider): :param provider: the provider domain :type provider: basestring """ - return "%s@%s" % (user, provider) + return '%s@%s' % (user, provider) def get_username_and_provider(full_id): return full_id.split('@') -class ProviderConfig(object): - # TODO add file config for enabled services +class WebClientContextFactory(ClientContextFactory): + def getContext(self, hostname, port): + return ClientContextFactory.getContext(self) + + +class Provider(object): + # TODO split Provider, ProviderConfig + # TODO add validation - def __init__(self, domain): - self._api_base = None + SERVICES_MAP = { + 'openvpn': ['eip'], + 'mx': ['soledad', 'smtp']} + + def __init__(self, domain, autoconf=True, basedir='~/.config/leap', + check_certificate=True): self._domain = domain + self._basedir = os.path.expanduser(basedir) + self._disco = Discovery('https://%s' % domain) + self._provider_config = {} + + is_configured = self.is_configured() + if not is_configured: + check_certificate = False + + if check_certificate: + self.contextFactory = None + else: + # XXX we should do this only for the FIRST provider download. + # For the rest, we should pass the ca cert to the agent. + # That means that RIGHT AFTER DOWNLOADING provider_info, + # we should instantiate a new Agent... + self.contextFactory = WebClientContextFactory() + self._agent = Agent(reactor, self.contextFactory) + + self._load_provider_config() + # TODO if loaded, setup _get_api_uri on the DISCOVERY + + self._init_deferred = None + + if not is_configured and autoconf: + print 'provider %s not configured: downloading files...' % domain + self.bootstrap() + else: + print 'already initialized' + self._init_deferred = defer.succeed('already_initialized') + + def callWhenReady(self, cb, *args, **kw): + print 'calling when ready', cb + d = self._init_deferred + d.addCallback(lambda _: cb(*args, **kw)) + d.addErrback(log.err) + return d def is_configured(self): provider_json = self._get_provider_json_path() # XXX check if all the services are there - if is_file(provider_json): - return True - return False + if not is_file(provider_json): + return False + if not is_file(self._get_ca_cert_path()): + return False + return True + + def bootstrap(self): + print "Bootstrapping provider %s" % self._domain + d = self.maybe_download_provider_info() + d.addCallback(self.maybe_download_ca_cert) + d.addCallback(self.validate_ca_cert) + d.addCallback(self.maybe_download_services_config) + d.addCallback(self.load_services_config) + self._init_deferred = d + + def has_valid_certificate(self): + pass - def download_provider_info(self): + def maybe_download_provider_info(self, replace=False): """ Download the provider.json info from the main domain. This SHOULD only be used once with the DOMAIN url. @@ -128,8 +203,19 @@ class ProviderConfig(object): # TODO handle pre-seeded providers? # or let client handle that? We could move them to bonafide. provider_json = self._get_provider_json_path() - if is_file(provider_json): - raise RuntimeError('File already exists') + if is_file(provider_json) and not replace: + return defer.succeed('provider_info_already_exists') + + folders, f = os.path.split(provider_json) + mkdir_p(folders) + + uri = self._disco.get_provider_info_uri() + met = self._disco.get_provider_info_method() + + d = downloadPage(uri, provider_json, method=met) + d.addCallback(lambda _: self._load_provider_config()) + d.addErrback(log.err) + return d def update_provider_info(self): """ @@ -137,16 +223,142 @@ class ProviderConfig(object): """ pass - def _http_request(self, *args, **kw): - # XXX pass if-modified-since header - return httpRequest(*args, **kw) + def maybe_download_ca_cert(self, ignored): + """ + :rtype: deferred + """ + path = self._get_ca_cert_path() + if is_file(path): + return defer.succeed('ca_cert_path_already_exists') + + uri = self._get_ca_cert_uri() + mkdir_p(os.path.split(path)[0]) + d = downloadPage(uri, path) + d.addErrback(log.err) + return d + + def validate_ca_cert(self, ignored): + # XXX Need to verify fingerprint against the one in provider.json + expected = self._get_expected_ca_cert_fingerprint() + print "EXPECTED FINGERPRINT:", expected + + def _get_expected_ca_cert_fingerprint(self): + try: + fgp = self._provider_config.ca_cert_fingerprint + except AttributeError: + fgp = None + return fgp + + + def maybe_download_services_config(self, ignored): + pass + + def load_services_config(self, ignored): + print 'loading services config...' + configs_path = self._get_configs_path() + + uri = self._disco.get_configs_uri() + met = self._disco.get_configs_method() + + # TODO --- currently, provider on mail.bitmask.net raises 401 + # UNAUTHENTICATED if we try to # get the services on first boostrap. + # See: # https://leap.se/code/issues/7906 + + # As a Workaround, these urls work though: + # curl -k https://api.mail.bitmask.net:4430/1/config/smtp-service.json + # curl -k https://api.mail.bitmask.net:4430/1/config/soledad-service.json + + print "GETTING SERVICES FROM...", uri + + d = downloadPage(uri, configs_path, method=met) + d.addCallback(lambda _: self._load_provider_config()) + d.addCallback(lambda _: self._get_config_for_all_services()) + d.addErrback(log.err) + return d + + def offers_service(self, service): + if service not in self.SERVICES_MAP.keys(): + raise RuntimeError('Unknown service: %s' % service) + return service in self._provider_config.services + + # TODO is_service_enabled ---> this belongs to core? def _get_provider_json_path(self): domain = self._domain.encode(sys.getfilesystemencoding()) - provider_json = os.path.join(get_path_prefix(), get_provider_path(domain)) - return provider_json + provider_json_path = os.path.join( + self._basedir, get_provider_path(domain, config='provider.json')) + return provider_json_path + + def _get_configs_path(self): + domain = self._domain.encode(sys.getfilesystemencoding()) + configs_path = os.path.join( + self._basedir, get_provider_path(domain, config='configs.json')) + return configs_path + + def _get_service_config_path(self, service): + domain = self._domain.encode(sys.getfilesystemencoding()) + configs_path = os.path.join( + self._basedir, get_provider_path( + domain, config='%s-service.json' % service)) + return configs_path + + def _get_ca_cert_path(self): + domain = self._domain.encode(sys.getfilesystemencoding()) + cert_path = os.path.join(self._basedir, get_ca_cert_path(domain)) + return cert_path + + def _get_ca_cert_uri(self): + try: + uri = self._provider_config.ca_cert_uri + uri = str(uri) + except Exception: + uri = None + return uri + + def _load_provider_config(self): + path = self._get_provider_json_path() + if not is_file(path): + return + with open(path, 'r') as config: + self._provider_config = Record(**json.load(config)) + + def _get_config_for_all_services(self): + configs_path = self._get_configs_path() + with open(configs_path) as jsonf: + services_dict = Record(**json.load(jsonf)).services + pending = [] + base = self._disco.get_base_uri() + for service in self._provider_config.services: + for subservice in self.SERVICES_MAP[service]: + uri = base + str(services_dict[subservice]) + path = self._get_service_config_path(subservice) + d = self._fetch_config_for_service(uri, path) + pending.append(d) + return defer.gatherResults(pending) + + def _fetch_config_for_service(self, uri, path): + log.msg('Downloading config for %s...' % uri) + d = downloadPage(uri, path, method='GET') + return d + + def _http_request(self, *args, **kw): + # XXX pass if-modified-since header + return httpRequest(self._agent, *args, **kw) + + def _get_api_uri(self): + pass + + +class Record(object): + def __init__(self, **kw): + self.__dict__.update(kw) + if __name__ == '__main__': - config = ProviderConfig('cdev.bitmask.net') - config.is_configured() - config.download_provider_info() + + def print_done(): + print '>>> bootstrapping done!!!' + + provider = Provider('cdev.bitmask.net') + provider.callWhenReady(print_done) + reactor.run() |