Initial commit

* Examples work
* setup.py kinda updasted
* Fork of txmongo but with new pymongo embedded

asyncio_mongo/database.py

@@ -0,0 +1,123 @@
+# coding: utf-8
+# Copyright 2009 Alexandre Fiori
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+from asyncio_mongo._bson import SON
+
+from asyncio_mongo._pymongo import helpers
+from asyncio_mongo.collection import Collection
+from asyncio import coroutine
+from asyncio_mongo.exceptions import ErrorReply
+
+
+class Database(object):
+    def __init__(self, protocol, database_name):
+        self.__protocol = protocol
+        self._database_name = database_name
+
+    def __str__(self):
+        return self._database_name
+
+    def __repr__(self):
+        return "<mongodb Database: %s>" % self._database_name
+
+    def __call__(self, database_name):
+        return Database(self.__protocol, database_name)
+
+    def __getitem__(self, collection_name):
+        return Collection(self, collection_name)
+
+    def __getattr__(self, collection_name):
+        return self[collection_name]
+
+    @property
+    def _protocol(self):
+        return self.__protocol
+
+    @coroutine
+    def create_collection(self, name, options=None):
+        collection = Collection(self, name)
+
+        if options:
+            if "size" in options:
+                options["size"] = float(options["size"])
+
+            command = SON({"create": name})
+            command.update(options)
+            result = yield from self["$cmd"].find_one(command)
+            if result.get("ok", 0.0):
+                return collection
+            else:
+                raise RuntimeError(result.get("errmsg", "unknown error"))
+        else:
+            return collection
+
+    @coroutine
+    def drop_collection(self, name_or_collection):
+        if isinstance(name_or_collection, Collection):
+            name = name_or_collection._collection_name
+        elif isinstance(name_or_collection, str):
+            name = name_or_collection
+        else:
+            raise TypeError("name must be an instance of basestring or txmongo.Collection")
+
+        return self["$cmd"].find_one({"drop": name})
+
+    @coroutine
+    def collection_names(self):
+        results = yield from self["system.namespaces"].find()
+        names = [r["name"] for r in results]
+        names = [n[len(str(self)) + 1:] for n in names
+                 if n.startswith(str(self) + ".")]
+        names = [n for n in names if "$" not in n]
+        return names
+
+    @coroutine
+    def authenticate(self, name, password):
+        """
+        Send an authentication command for this database.
+        mostly stolen from asyncio_mongo._pymongo
+        """
+        if not isinstance(name, str):
+            raise TypeError("name must be an instance of str")
+        if not isinstance(password, str):
+            raise TypeError("password must be an instance of str")
+
+        # First get the nonce
+        result = yield self["$cmd"].find_one({"getnonce": 1})
+        return (yield self.authenticate_with_nonce(result, name, password))
+
+    @coroutine
+    def authenticate_with_nonce(self, result, name, password):
+        nonce = result['nonce']
+        key = helpers._auth_key(nonce, name, password)
+
+        # hacky because order matters
+        auth_command = SON(authenticate=1)
+        auth_command['user'] = name
+        auth_command['nonce'] = nonce
+        auth_command['key'] = key
+
+        # Now actually authenticate
+        result = yield from self["$cmd"].find_one(auth_command)
+        return self.authenticated(result)
+
+    @coroutine
+    def authenticated(self, result):
+        """might want to just call callback with 0.0 instead of errback"""
+        ok = result['ok']
+        if ok:
+            return ok
+        else:
+            raise ErrorReply(result['errmsg'])
+