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| 1 # Copyright 2014 Google Inc. All rights reserved. | 1 # Copyright (C) 2011 Google Inc. |
| 2 # | 2 # |
| 3 # Licensed under the Apache License, Version 2.0 (the "License"); | 3 # Licensed under the Apache License, Version 2.0 (the "License"); |
| 4 # you may not use this file except in compliance with the License. | 4 # you may not use this file except in compliance with the License. |
| 5 # You may obtain a copy of the License at | 5 # You may obtain a copy of the License at |
| 6 # | 6 # |
| 7 # http://www.apache.org/licenses/LICENSE-2.0 | 7 # http://www.apache.org/licenses/LICENSE-2.0 |
| 8 # | 8 # |
| 9 # Unless required by applicable law or agreed to in writing, software | 9 # Unless required by applicable law or agreed to in writing, software |
| 10 # distributed under the License is distributed on an "AS IS" BASIS, | 10 # distributed under the License is distributed on an "AS IS" BASIS, |
| 11 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | 11 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 12 # See the License for the specific language governing permissions and | 12 # See the License for the specific language governing permissions and |
| 13 # limitations under the License. | 13 # limitations under the License. |
| 14 | 14 |
| 15 """Utilities for reading OAuth 2.0 client secret files. | 15 """Utilities for reading OAuth 2.0 client secret files. |
| 16 | 16 |
| 17 A client_secrets.json file contains all the information needed to interact with | 17 A client_secrets.json file contains all the information needed to interact with |
| 18 an OAuth 2.0 protected service. | 18 an OAuth 2.0 protected service. |
| 19 """ | 19 """ |
| 20 | 20 |
| 21 __author__ = 'jcgregorio@google.com (Joe Gregorio)' | 21 __author__ = 'jcgregorio@google.com (Joe Gregorio)' |
| 22 | 22 |
| 23 import json | |
| 24 | 23 |
| 25 from third_party import six | 24 from anyjson import simplejson |
| 26 | |
| 27 | 25 |
| 28 # Properties that make a client_secrets.json file valid. | 26 # Properties that make a client_secrets.json file valid. |
| 29 TYPE_WEB = 'web' | 27 TYPE_WEB = 'web' |
| 30 TYPE_INSTALLED = 'installed' | 28 TYPE_INSTALLED = 'installed' |
| 31 | 29 |
| 32 VALID_CLIENT = { | 30 VALID_CLIENT = { |
| 33 TYPE_WEB: { | 31 TYPE_WEB: { |
| 34 'required': [ | 32 'required': [ |
| 35 'client_id', | 33 'client_id', |
| 36 'client_secret', | 34 'client_secret', |
| (...skipping 26 matching lines...) Expand all Loading... |
| 63 """Base error for this module.""" | 61 """Base error for this module.""" |
| 64 pass | 62 pass |
| 65 | 63 |
| 66 | 64 |
| 67 class InvalidClientSecretsError(Error): | 65 class InvalidClientSecretsError(Error): |
| 68 """Format of ClientSecrets file is invalid.""" | 66 """Format of ClientSecrets file is invalid.""" |
| 69 pass | 67 pass |
| 70 | 68 |
| 71 | 69 |
| 72 def _validate_clientsecrets(obj): | 70 def _validate_clientsecrets(obj): |
| 73 _INVALID_FILE_FORMAT_MSG = ( | 71 if obj is None or len(obj) != 1: |
| 74 'Invalid file format. See ' | 72 raise InvalidClientSecretsError('Invalid file format.') |
| 75 'https://developers.google.com/api-client-library/' | 73 client_type = obj.keys()[0] |
| 76 'python/guide/aaa_client_secrets') | 74 if client_type not in VALID_CLIENT.keys(): |
| 77 | 75 raise InvalidClientSecretsError('Unknown client type: %s.' % client_type) |
| 78 if obj is None: | |
| 79 raise InvalidClientSecretsError(_INVALID_FILE_FORMAT_MSG) | |
| 80 if len(obj) != 1: | |
| 81 raise InvalidClientSecretsError( | |
| 82 _INVALID_FILE_FORMAT_MSG + ' ' | |
| 83 'Expected a JSON object with a single property for a "web" or ' | |
| 84 '"installed" application') | |
| 85 client_type = tuple(obj)[0] | |
| 86 if client_type not in VALID_CLIENT: | |
| 87 raise InvalidClientSecretsError('Unknown client type: %s.' % (client_type,)) | |
| 88 client_info = obj[client_type] | 76 client_info = obj[client_type] |
| 89 for prop_name in VALID_CLIENT[client_type]['required']: | 77 for prop_name in VALID_CLIENT[client_type]['required']: |
| 90 if prop_name not in client_info: | 78 if prop_name not in client_info: |
| 91 raise InvalidClientSecretsError( | 79 raise InvalidClientSecretsError( |
| 92 'Missing property "%s" in a client type of "%s".' % (prop_name, | 80 'Missing property "%s" in a client type of "%s".' % (prop_name, |
| 93 client_type)) | 81 client_type)) |
| 94 for prop_name in VALID_CLIENT[client_type]['string']: | 82 for prop_name in VALID_CLIENT[client_type]['string']: |
| 95 if client_info[prop_name].startswith('[['): | 83 if client_info[prop_name].startswith('[['): |
| 96 raise InvalidClientSecretsError( | 84 raise InvalidClientSecretsError( |
| 97 'Property "%s" is not configured.' % prop_name) | 85 'Property "%s" is not configured.' % prop_name) |
| 98 return client_type, client_info | 86 return client_type, client_info |
| 99 | 87 |
| 100 | 88 |
| 101 def load(fp): | 89 def load(fp): |
| 102 obj = json.load(fp) | 90 obj = simplejson.load(fp) |
| 103 return _validate_clientsecrets(obj) | 91 return _validate_clientsecrets(obj) |
| 104 | 92 |
| 105 | 93 |
| 106 def loads(s): | 94 def loads(s): |
| 107 obj = json.loads(s) | 95 obj = simplejson.loads(s) |
| 108 return _validate_clientsecrets(obj) | 96 return _validate_clientsecrets(obj) |
| 109 | 97 |
| 110 | 98 |
| 111 def _loadfile(filename): | 99 def _loadfile(filename): |
| 112 try: | 100 try: |
| 113 with open(filename, 'r') as fp: | 101 fp = file(filename, 'r') |
| 114 obj = json.load(fp) | 102 try: |
| 103 obj = simplejson.load(fp) |
| 104 finally: |
| 105 fp.close() |
| 115 except IOError: | 106 except IOError: |
| 116 raise InvalidClientSecretsError('File not found: "%s"' % filename) | 107 raise InvalidClientSecretsError('File not found: "%s"' % filename) |
| 117 return _validate_clientsecrets(obj) | 108 return _validate_clientsecrets(obj) |
| 118 | 109 |
| 119 | 110 |
| 120 def loadfile(filename, cache=None): | 111 def loadfile(filename, cache=None): |
| 121 """Loading of client_secrets JSON file, optionally backed by a cache. | 112 """Loading of client_secrets JSON file, optionally backed by a cache. |
| 122 | 113 |
| 123 Typical cache storage would be App Engine memcache service, | 114 Typical cache storage would be App Engine memcache service, |
| 124 but you can pass in any other cache client that implements | 115 but you can pass in any other cache client that implements |
| 125 these methods: | 116 these methods: |
| 117 - get(key, namespace=ns) |
| 118 - set(key, value, namespace=ns) |
| 126 | 119 |
| 127 * ``get(key, namespace=ns)`` | 120 Usage: |
| 128 * ``set(key, value, namespace=ns)`` | |
| 129 | |
| 130 Usage:: | |
| 131 | |
| 132 # without caching | 121 # without caching |
| 133 client_type, client_info = loadfile('secrets.json') | 122 client_type, client_info = loadfile('secrets.json') |
| 134 # using App Engine memcache service | 123 # using App Engine memcache service |
| 135 from google.appengine.api import memcache | 124 from google.appengine.api import memcache |
| 136 client_type, client_info = loadfile('secrets.json', cache=memcache) | 125 client_type, client_info = loadfile('secrets.json', cache=memcache) |
| 137 | 126 |
| 138 Args: | 127 Args: |
| 139 filename: string, Path to a client_secrets.json file on a filesystem. | 128 filename: string, Path to a client_secrets.json file on a filesystem. |
| 140 cache: An optional cache service client that implements get() and set() | 129 cache: An optional cache service client that implements get() and set() |
| 141 methods. If not specified, the file is always being loaded from | 130 methods. If not specified, the file is always being loaded from |
| (...skipping 12 matching lines...) Expand all Loading... |
| 154 | 143 |
| 155 if not cache: | 144 if not cache: |
| 156 return _loadfile(filename) | 145 return _loadfile(filename) |
| 157 | 146 |
| 158 obj = cache.get(filename, namespace=_SECRET_NAMESPACE) | 147 obj = cache.get(filename, namespace=_SECRET_NAMESPACE) |
| 159 if obj is None: | 148 if obj is None: |
| 160 client_type, client_info = _loadfile(filename) | 149 client_type, client_info = _loadfile(filename) |
| 161 obj = {client_type: client_info} | 150 obj = {client_type: client_info} |
| 162 cache.set(filename, obj, namespace=_SECRET_NAMESPACE) | 151 cache.set(filename, obj, namespace=_SECRET_NAMESPACE) |
| 163 | 152 |
| 164 return next(six.iteritems(obj)) | 153 return obj.iteritems().next() |
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