object-storage: final changes to remove swift diff

Final set of changes to remove the diffs carried to make UFO work with
OpenStack Swift. The code is now a complete layering on top of OpenStack Swift
where we either "monkey patch" or subclass as necessary.

See BZ 870589 (https://bugzilla.redhat.com/show_bug.cgi?id=870589).

There are a lot of changes here due for the most part to rearranging the
directory hierarchy to have create a proper python module hierarchy under the
"gluster" namespace. Plugin references have been removed. The differences that
used to be in the swift.diff file are now replaced with server implementations
for account, container, object, and proxy that subclass the swift versions.

Additionally, the plugins/conf directory has been moved to the "etc"
directory, and the plugins/bin directory promoted a level.

Unit tests pass.

A new setup.py file is provided so that the install process can use it for
creating all the necessary python install infrastructure (eggs and paste
support).

A new RPM spec file is provided which to properly install the new code, and
the sample configuration files have been modified to reference the new python
egg.

Change-Id: I4316c1b66dca80f847fe9b0d583174689c175599
BUG: 870589
Signed-off-by: Peter Portante <peter.portante@redhat.com>
Reviewed-on: http://review.gluster.org/4180
Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com>
Reviewed-by: Mohammed Junaid <junaid@redhat.com>
Tested-by: Kaleb KEITHLEY <kkeithle@redhat.com>

19 files changed, 1853 insertions, 0 deletions

diff --git a/swift/1.4.8/gluster/__init__.py b/swift/1.4.8/gluster/__init__.py
new file mode 100644
index 000000000..e69de29bb
--- /dev/null
+++ b/swift/1.4.8/gluster/__init__.py
diff --git a/swift/1.4.8/gluster/swift/__init__.py b/swift/1.4.8/gluster/swift/__init__.py
new file mode 100644
index 000000000..17578ebee
--- /dev/null
+++ b/swift/1.4.8/gluster/swift/__init__.py
@@ -0,0 +1,18 @@
+""" Gluster Swift UFO """
+
+class Version(object):
+    def __init__(self, canonical_version, final):
+        self.canonical_version = canonical_version
+        self.final = final
+
+    @property
+    def pretty_version(self):
+        if self.final:
+            return self.canonical_version
+        else:
+            return '%s-dev' % (self.canonical_version,)
+
+
+_version = Version('1.1', True)
+__version__ = _version.pretty_version
+__canonical_version__ = _version.canonical_version
diff --git a/swift/1.4.8/gluster/swift/account/__init__.py b/swift/1.4.8/gluster/swift/account/__init__.py
new file mode 100644
index 000000000..e69de29bb
--- /dev/null
+++ b/swift/1.4.8/gluster/swift/account/__init__.py
diff --git a/swift/1.4.8/gluster/swift/account/server.py b/swift/1.4.8/gluster/swift/account/server.py
new file mode 100644
index 000000000..8b9831579
--- /dev/null
+++ b/swift/1.4.8/gluster/swift/account/server.py
@@ -0,0 +1,45 @@
+# Copyright (c) 2012 Red Hat, Inc.
+#
+# 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.
+
+""" Account Server for Gluster Swift UFO """
+
+# Simply importing this monkey patches the constraint handling to fit our
+# needs
+import gluster.swift.common.constraints
+
+from swift.account import server
+from gluster.swift.common.DiskDir import DiskAccount
+
+
+class AccountController(server.AccountController):
+    def _get_account_broker(self, drive, part, account):
+        """
+        Overriden to provide the GlusterFS specific broker that talks to
+        Gluster for the information related to servicing a given request
+        instead of talking to a database.
+
+        :param drive: drive that holds the container
+        :param part: partition the container is in
+        :param account: account name
+        :returns: DiskDir object
+        """
+        return DiskAccount(self.root, account, self.logger)
+
+
+def app_factory(global_conf, **local_conf):
+    """paste.deploy app factory for creating WSGI account server apps."""
+    conf = global_conf.copy()
+    conf.update(local_conf)
+    return AccountController(conf)
diff --git a/swift/1.4.8/gluster/swift/common/DiskDir.py b/swift/1.4.8/gluster/swift/common/DiskDir.py
new file mode 100644
index 000000000..8602fabae
--- /dev/null
+++ b/swift/1.4.8/gluster/swift/common/DiskDir.py
@@ -0,0 +1,500 @@
+# Copyright (c) 2012 Red Hat, Inc.
+#
+# 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.
+
+import os, errno
+
+from gluster.swift.common.utils import clean_metadata, dir_empty, rmdirs, \
+     mkdirs, validate_account, validate_container, is_marker, \
+     get_container_details, get_account_details, get_container_metadata, \
+     create_container_metadata, create_account_metadata, DEFAULT_GID, \
+     DEFAULT_UID, validate_object, create_object_metadata, read_metadata, \
+     write_metadata, X_CONTENT_TYPE, X_CONTENT_LENGTH, X_TIMESTAMP, \
+     X_PUT_TIMESTAMP, X_TYPE, X_ETAG, X_OBJECTS_COUNT, X_BYTES_USED, \
+     X_CONTAINER_COUNT, CONTAINER
+from gluster.swift.common import Glusterfs
+
+from swift.common.constraints import CONTAINER_LISTING_LIMIT
+from swift.common.utils import normalize_timestamp, TRUE_VALUES
+
+
+DATADIR = 'containers'
+
+# Create a dummy db_file in /etc/swift
+_unittests_enabled = os.getenv('GLUSTER_UNIT_TEST_ENABLED', 'no')
+if _unittests_enabled in TRUE_VALUES:
+    _tmp_dir = '/tmp/gluster_unit_tests'
+    try:
+        os.mkdir(_tmp_dir)
+    except OSError as e:
+        if e.errno != errno.EEXIST:
+            raise
+    _db_file = os.path.join(_tmp_dir, 'db_file.db')
+else:
+    _db_file = '/etc/swift/db_file.db'
+if not os.path.exists(_db_file):
+    file(_db_file, 'w+')
+
+
+def _read_metadata(dd):
+    """ Filter read metadata so that it always returns a tuple that includes
+        some kind of timestamp. With 1.4.8 of the Swift integration the
+        timestamps were not stored. Here we fabricate timestamps for volumes
+        where the existing data has no timestamp (that is, stored data is not
+        a tuple), allowing us a measure of backward compatibility.
+
+        FIXME: At this time it does not appear that the timestamps on each
+        metadata are used for much, so this should not hurt anything.
+    """
+    metadata_i = read_metadata(dd)
+    metadata = {}
+    timestamp = 0
+    for key, value in metadata_i.iteritems():
+        if not isinstance(value, tuple):
+            value = (value, timestamp)
+        metadata[key] = value
+    return metadata
+
+
+class DiskCommon(object):
+    def is_deleted(self):
+        return not os.path.exists(self.datadir)
+
+    def filter_prefix(self, objects, prefix):
+        """
+        Accept sorted list.
+        """
+        found = 0
+        filtered_objs = []
+        for object_name in objects:
+            if object_name.startswith(prefix):
+                filtered_objs.append(object_name)
+                found = 1
+            else:
+                if found:
+                    break
+        return filtered_objs
+
+    def filter_delimiter(self, objects, delimiter, prefix):
+        """
+        Accept sorted list.
+        Objects should start with prefix.
+        """
+        filtered_objs=[]
+        for object_name in objects:
+            tmp_obj = object_name.replace(prefix, '', 1)
+            sufix = tmp_obj.split(delimiter, 1)
+            new_obj = prefix + sufix[0]
+            if new_obj and new_obj not in filtered_objs:
+                filtered_objs.append(new_obj)
+
+        return filtered_objs
+
+    def filter_marker(self, objects, marker):
+        """
+        TODO: We can traverse in reverse order to optimize.
+        Accept sorted list.
+        """
+        filtered_objs=[]
+        found = 0
+        if objects[-1] < marker:
+            return filtered_objs
+        for object_name in objects:
+            if object_name > marker:
+                filtered_objs.append(object_name)
+
+        return filtered_objs
+
+    def filter_end_marker(self, objects, end_marker):
+        """
+        Accept sorted list.
+        """
+        filtered_objs=[]
+        for object_name in objects:
+            if object_name < end_marker:
+                filtered_objs.append(object_name)
+            else:
+                break
+
+        return filtered_objs
+
+    def filter_limit(self, objects, limit):
+        filtered_objs=[]
+        for i in range(0, limit):
+            filtered_objs.append(objects[i])
+
+        return filtered_objs
+
+
+class DiskDir(DiskCommon):
+    """
+    Manage object files on disk.
+
+    :param path: path to devices on the node
+    :param account: account name for the object
+    :param container: container name for the object
+    :param logger: account or container server logging object
+    :param uid: user ID container object should assume
+    :param gid: group ID container object should assume
+    """
+
+    def __init__(self, path, account, container, logger,
+                 uid=DEFAULT_UID, gid=DEFAULT_GID):
+        self.root = path
+        if container:
+            self.container = container
+        else:
+            self.container = None
+        if self.container:
+            self.datadir = os.path.join(path, account, self.container)
+        else:
+            self.datadir = os.path.join(path, account)
+        # Note that the account name has a one-to-one mapping to the gluster
+        # mount point, or volume name.
+        self.account = account
+        assert logger is not None
+        self.logger = logger
+        self.metadata = {}
+        self.container_info = None
+        self.object_info = None
+        self.uid = int(uid)
+        self.gid = int(gid)
+        self.db_file = _db_file
+        self.dir_exists = os.path.exists(self.datadir)
+        if self.dir_exists:
+            try:
+                self.metadata = _read_metadata(self.datadir)
+            except EOFError:
+                create_container_metadata(self.datadir)
+        else:
+            return
+        if self.container:
+            if not self.metadata:
+                create_container_metadata(self.datadir)
+                self.metadata = _read_metadata(self.datadir)
+            else:
+                if not validate_container(self.metadata):
+                    create_container_metadata(self.datadir)
+                    self.metadata = _read_metadata(self.datadir)
+        else:
+            if not self.metadata:
+                create_account_metadata(self.datadir)
+                self.metadata = _read_metadata(self.datadir)
+            else:
+                if not validate_account(self.metadata):
+                    create_account_metadata(self.datadir)
+                    self.metadata = _read_metadata(self.datadir)
+
+    def empty(self):
+        return dir_empty(self.datadir)
+
+    def delete(self):
+        if self.empty():
+            #For delete account.
+            if os.path.ismount(self.datadir):
+                clean_metadata(self.datadir)
+            else:
+                rmdirs(self.datadir)
+            self.dir_exists = False
+
+    def put_metadata(self, metadata):
+        """
+        Write metadata to directory/container.
+        """
+        write_metadata(self.datadir, metadata)
+        self.metadata = metadata
+
+    def put(self, metadata):
+        """
+        Create and write metatdata to directory/container.
+        :param metadata: Metadata to write.
+        """
+        if not self.dir_exists:
+            mkdirs(self.datadir)
+
+        os.chown(self.datadir, self.uid, self.gid)
+        write_metadata(self.datadir, metadata)
+        self.metadata = metadata
+        self.dir_exists = True
+
+    def put_obj(self, content_length, timestamp):
+        ocnt = self.metadata[X_OBJECTS_COUNT][0]
+        self.metadata[X_OBJECTS_COUNT] = (int(ocnt) + 1, timestamp)
+        self.metadata[X_PUT_TIMESTAMP] = timestamp
+        bused = self.metadata[X_BYTES_USED][0]
+        self.metadata[X_BYTES_USED] = (int(bused) + int(content_length), timestamp)
+        #TODO: define update_metadata instad of writing whole metadata again.
+        self.put_metadata(self.metadata)
+
+    def delete_obj(self, content_length):
+        ocnt, timestamp = self.metadata[X_OBJECTS_COUNT][0]
+        self.metadata[X_OBJECTS_COUNT] = (int(ocnt) - 1, timestamp)
+        bused, timestamp = self.metadata[X_BYTES_USED]
+        self.metadata[X_BYTES_USED] = (int(bused) - int(content_length), timestamp)
+        self.put_metadata(self.metadata)
+
+    def put_container(self, container, put_timestamp, del_timestamp, object_count, bytes_used):
+        """
+        For account server.
+        """
+        self.metadata[X_OBJECTS_COUNT] = (0, put_timestamp)
+        self.metadata[X_BYTES_USED] = (0, put_timestamp)
+        ccnt = self.metadata[X_CONTAINER_COUNT][0]
+        self.metadata[X_CONTAINER_COUNT] = (int(ccnt) + 1, put_timestamp)
+        self.metadata[X_PUT_TIMESTAMP] = (1, put_timestamp)
+        self.put_metadata(self.metadata)
+
+    def delete_container(self, object_count, bytes_used):
+        """
+        For account server.
+        """
+        self.metadata[X_OBJECTS_COUNT] = (0, 0)
+        self.metadata[X_BYTES_USED] = (0, 0)
+        ccnt, timestamp = self.metadata[X_CONTAINER_COUNT]
+        self.metadata[X_CONTAINER_COUNT] = (int(ccnt) - 1, timestamp)
+        self.put_metadata(self.metadata)
+
+    def unlink(self):
+        """
+        Remove directory/container if empty.
+        """
+        if dir_empty(self.datadir):
+            rmdirs(self.datadir)
+
+    def list_objects_iter(self, limit, marker, end_marker,
+                          prefix, delimiter, path):
+        """
+        Returns tuple of name, created_at, size, content_type, etag.
+        """
+        if path:
+            prefix = path = path.rstrip('/') + '/'
+            delimiter = '/'
+        if delimiter and not prefix:
+            prefix = ''
+
+        self.update_object_count()
+
+        objects, object_count, bytes_used = self.object_info
+
+        if objects:
+            objects.sort()
+
+        if objects and prefix:
+            objects = self.filter_prefix(objects, prefix)
+
+        if objects and delimiter:
+            objects = self.filter_delimiter(objects, delimiter, prefix)
+
+        if objects and marker:
+            objects = self.filter_marker(objects, marker)
+
+        if objects and end_marker:
+            objects = self.filter_end_marker(objects, end_marker)
+
+        if objects and limit:
+            if len(objects) > limit:
+                objects = self.filter_limit(objects, limit)
+
+        container_list = []
+        if objects:
+            for obj in objects:
+                list_item = []
+                list_item.append(obj)
+                obj_path = os.path.join(self.datadir, obj)
+                metadata = read_metadata(obj_path)
+                if not metadata or not validate_object(metadata):
+                    metadata = create_object_metadata(obj_path)
+                if metadata:
+                    list_item.append(metadata[X_TIMESTAMP])
+                    list_item.append(int(metadata[X_CONTENT_LENGTH]))
+                    list_item.append(metadata[X_CONTENT_TYPE])
+                    list_item.append(metadata[X_ETAG])
+                container_list.append(list_item)
+
+        return container_list
+
+    def update_object_count(self):
+        if not self.object_info:
+            self.object_info = get_container_details(self.datadir)
+
+        objects, object_count, bytes_used = self.object_info
+
+        if X_OBJECTS_COUNT not in self.metadata \
+                or int(self.metadata[X_OBJECTS_COUNT][0]) != object_count \
+                or X_BYTES_USED not in self.metadata \
+                or int(self.metadata[X_BYTES_USED][0]) != bytes_used:
+            self.metadata[X_OBJECTS_COUNT] = (object_count, 0)
+            self.metadata[X_BYTES_USED] = (bytes_used, 0)
+            write_metadata(self.datadir, self.metadata)
+
+    def update_container_count(self):
+        if not self.container_info:
+            self.container_info = get_account_details(self.datadir)
+
+        containers, container_count = self.container_info
+
+        if X_CONTAINER_COUNT not in self.metadata \
+                or int(self.metadata[X_CONTAINER_COUNT][0]) != container_count:
+            self.metadata[X_CONTAINER_COUNT] = (container_count, 0)
+            write_metadata(self.datadir, self.metadata)
+
+    def get_info(self, include_metadata=False):
+        """
+        Get global data for the container.
+        :returns: dict with keys: account, container, object_count, bytes_used,
+                      hash, id, created_at, put_timestamp, delete_timestamp,
+                      reported_put_timestamp, reported_delete_timestamp,
+                      reported_object_count, and reported_bytes_used.
+                  If include_metadata is set, metadata is included as a key
+                  pointing to a dict of tuples of the metadata
+        """
+        # TODO: delete_timestamp, reported_put_timestamp
+        #       reported_delete_timestamp, reported_object_count,
+        #       reported_bytes_used, created_at
+        if not Glusterfs.OBJECT_ONLY:
+            # If we are not configured for object only environments, we should
+            # update the object counts in case they changed behind our back.
+            self.update_object_count()
+
+        data = {'account' : self.account, 'container' : self.container,
+                'object_count' : self.metadata.get(X_OBJECTS_COUNT, ('0', 0))[0],
+                'bytes_used' : self.metadata.get(X_BYTES_USED, ('0',0))[0],
+                'hash': '', 'id' : '', 'created_at' : '1',
+                'put_timestamp' : self.metadata.get(X_PUT_TIMESTAMP, ('0',0))[0],
+                'delete_timestamp' : '1',
+                'reported_put_timestamp' : '1', 'reported_delete_timestamp' : '1',
+                'reported_object_count' : '1', 'reported_bytes_used' : '1'}
+        if include_metadata:
+            data['metadata'] = self.metadata
+        return data
+
+    def put_object(self, name, timestamp, size, content_type,
+                    etag, deleted=0):
+        # TODO: Implement the specifics of this func.
+        pass
+
+    def initialize(self, timestamp):
+        pass
+
+    def update_put_timestamp(self, timestamp):
+        """
+        Create the container if it doesn't exist and update the timestamp
+        """
+        if not os.path.exists(self.datadir):
+            self.put(self.metadata)
+
+    def delete_object(self, name, timestamp):
+        # TODO: Implement the delete object
+        pass
+
+    def delete_db(self, timestamp):
+        """
+        Delete the container
+        """
+        self.unlink()
+
+    def update_metadata(self, metadata):
+        assert self.metadata, "Valid container/account metadata should have been created by now"
+        if metadata:
+            new_metadata = self.metadata.copy()
+            new_metadata.update(metadata)
+            if new_metadata != self.metadata:
+                write_metadata(self.datadir, new_metadata)
+                self.metadata = new_metadata
+
+
+class DiskAccount(DiskDir):
+    def __init__(self, root, account, logger):
+        super(DiskAccount, self).__init__(root, account, None, logger)
+        assert self.dir_exists
+
+    def list_containers_iter(self, limit, marker, end_marker,
+                             prefix, delimiter):
+        """
+        Return tuple of name, object_count, bytes_used, 0(is_subdir).
+        Used by account server.
+        """
+        if delimiter and not prefix:
+            prefix = ''
+
+        self.update_container_count()
+
+        containers, container_count = self.container_info
+
+        if containers:
+            containers.sort()
+
+        if containers and prefix:
+            containers = self.filter_prefix(containers, prefix)
+
+        if containers and delimiter:
+            containers = self.filter_delimiter(containers, delimiter, prefix)
+
+        if containers and marker:
+            containers = self.filter_marker(containers, marker)
+
+        if containers and end_marker:
+            containers = self.filter_end_marker(containers, end_marker)
+
+        if containers and limit:
+            if len(containers) > limit:
+                containers = self.filter_limit(containers, limit)
+
+        account_list = []
+        if containers:
+            for cont in containers:
+                list_item = []
+                metadata = None
+                list_item.append(cont)
+                cont_path = os.path.join(self.datadir, cont)
+                metadata = _read_metadata(cont_path)
+                if not metadata or not validate_container(metadata):
+                    metadata = create_container_metadata(cont_path)
+
+                if metadata:
+                    list_item.append(metadata[X_OBJECTS_COUNT][0])
+                    list_item.append(metadata[X_BYTES_USED][0])
+                    list_item.append(0)
+                account_list.append(list_item)
+
+        return account_list
+
+    def get_info(self, include_metadata=False):
+        """
+        Get global data for the account.
+        :returns: dict with keys: account, created_at, put_timestamp,
+                  delete_timestamp, container_count, object_count,
+                  bytes_used, hash, id
+        """
+        if not Glusterfs.OBJECT_ONLY:
+            # If we are not configured for object only environments, we should
+            # update the container counts in case they changed behind our back.
+            self.update_container_count()
+
+        data = {'account' : self.account, 'created_at' : '1',
+                'put_timestamp' : '1', 'delete_timestamp' : '1',
+                'container_count' : self.metadata.get(X_CONTAINER_COUNT, (0,0))[0],
+                'object_count' : self.metadata.get(X_OBJECTS_COUNT, (0,0))[0],
+                'bytes_used' : self.metadata.get(X_BYTES_USED, (0,0))[0],
+                'hash' : '', 'id' : ''}
+
+        if include_metadata:
+            data['metadata'] = self.metadata
+        return data
+
+    def get_container_timestamp(self, container):
+        cont_path = os.path.join(self.datadir, container)
+        metadata = read_metadata(cont_path)
+
+        return int(metadata.get(X_PUT_TIMESTAMP, ('0',0))[0]) or None
diff --git a/swift/1.4.8/gluster/swift/common/DiskFile.py b/swift/1.4.8/gluster/swift/common/DiskFile.py
new file mode 100644
index 000000000..6404be6d6
--- /dev/null
+++ b/swift/1.4.8/gluster/swift/common/DiskFile.py
@@ -0,0 +1,323 @@
+# Copyright (c) 2012 Red Hat, Inc.
+#
+# 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.
+
+import os
+from eventlet import tpool
+from tempfile import mkstemp
+from contextlib import contextmanager
+from swift.common.utils import normalize_timestamp, renamer
+from gluster.swift.common.utils import mkdirs, rmdirs, validate_object, \
+     create_object_metadata,  do_open, do_close, do_unlink, do_chown, \
+     do_stat, do_listdir, read_metadata, write_metadata
+from gluster.swift.common.utils import X_CONTENT_TYPE, X_CONTENT_LENGTH, \
+     X_TIMESTAMP, X_PUT_TIMESTAMP, X_TYPE, X_ETAG, X_OBJECTS_COUNT, \
+     X_BYTES_USED, X_OBJECT_TYPE, FILE, DIR, MARKER_DIR, OBJECT, DIR_TYPE, \
+     FILE_TYPE, DEFAULT_UID, DEFAULT_GID
+
+import logging
+from swift.obj.server import DiskFile
+
+
+DATADIR = 'objects'
+ASYNCDIR = 'async_pending'
+KEEP_CACHE_SIZE = (5 * 1024 * 1024)
+# keep these lower-case
+DISALLOWED_HEADERS = set('content-length content-type deleted etag'.split())
+
+
+class Gluster_DiskFile(DiskFile):
+    """
+    Manage object files on disk.
+
+    :param path: path to devices on the node/mount path for UFO.
+    :param device: device name/account_name for UFO.
+    :param partition: partition on the device the object lives in
+    :param account: account name for the object
+    :param container: container name for the object
+    :param obj: object name for the object
+    :param keep_data_fp: if True, don't close the fp, otherwise close it
+    :param disk_chunk_Size: size of chunks on file reads
+    :param uid: user ID disk object should assume (file or directory)
+    :param gid: group ID disk object should assume (file or directory)
+    """
+
+    def __init__(self, path, device, partition, account, container, obj,
+                 logger, keep_data_fp=False, disk_chunk_size=65536,
+                 uid=DEFAULT_UID, gid=DEFAULT_GID):
+        self.disk_chunk_size = disk_chunk_size
+        device = account
+        #Don't support obj_name ending/begining with '/', like /a, a/, /a/b/ etc
+        obj = obj.strip('/')
+        if '/' in obj:
+            self.obj_path, self.obj = obj.rsplit('/', 1)
+        else:
+            self.obj_path = ''
+            self.obj = obj
+
+        if self.obj_path:
+            self.name = '/'.join((container, self.obj_path))
+        else:
+            self.name = container
+        #Absolute path for obj directory.
+        self.datadir = os.path.join(path, device, self.name)
+        self.device_path = os.path.join(path, device)
+        self.container_path = os.path.join(path, device, container)
+        self.tmpdir = os.path.join(path, device, 'tmp')
+        self.logger = logger
+        self.metadata = {}
+        self.data_file = None
+        self.fp = None
+        self.iter_etag = None
+        self.started_at_0 = False
+        self.read_to_eof = False
+        self.quarantined_dir = None
+        self.keep_cache = False
+        self.is_dir = False
+        self.is_valid = True
+        self.uid = int(uid)
+        self.gid = int(gid)
+        if not os.path.exists(self.datadir + '/' + self.obj):
+            return
+
+        self.data_file = os.path.join(self.datadir, self.obj)
+        self.metadata = read_metadata(self.datadir + '/' + self.obj)
+        if not self.metadata:
+            create_object_metadata(self.datadir + '/' + self.obj)
+            self.metadata = read_metadata(self.datadir + '/' + self.obj)
+
+        if not validate_object(self.metadata):
+            create_object_metadata(self.datadir + '/' + self.obj)
+            self.metadata = read_metadata(self.datadir + '/' +
+                                        self.obj)
+
+        self.filter_metadata()
+
+        if os.path.isdir(self.datadir + '/' + self.obj):
+            self.is_dir = True
+        else:
+            self.fp = do_open(self.data_file, 'rb')
+            if not keep_data_fp:
+                self.close(verify_file=False)
+
+    def close(self, verify_file=True):
+        """
+        Close the file. Will handle quarantining file if necessary.
+
+        :param verify_file: Defaults to True. If false, will not check
+                            file to see if it needs quarantining.
+        """
+        #Marker directory
+        if self.is_dir:
+            return
+        if self.fp:
+            do_close(self.fp)
+            self.fp = None
+
+    def is_deleted(self):
+        """
+        Check if the file is deleted.
+
+        :returns: True if the file doesn't exist or has been flagged as
+                  deleted.
+        """
+        return not self.data_file
+
+    def create_dir_object(self, dir_path):
+        #TODO: if object already exists???
+        if os.path.exists(dir_path) and not os.path.isdir(dir_path):
+            self.logger.error("Deleting file %s", dir_path)
+            do_unlink(dir_path)
+        #If dir aleady exist just override metadata.
+        mkdirs(dir_path)
+        do_chown(dir_path, self.uid, self.gid)
+        create_object_metadata(dir_path)
+        return True
+
+    def put_metadata(self, metadata):
+        obj_path = self.datadir + '/' + self.obj
+        write_metadata(obj_path, metadata)
+        self.metadata = metadata
+
+    def put(self, fd, tmppath, metadata, extension=''):
+        """
+        Finalize writing the file on disk, and renames it from the temp file to
+        the real location.  This should be called after the data has been
+        written to the temp file.
+
+        :params fd: file descriptor of the temp file
+        :param tmppath: path to the temporary file being used
+        :param metadata: dictionary of metadata to be written
+        :param extention: extension to be used when making the file
+        """
+        if extension == '.ts':
+            # TombStone marker (deleted)
+            return True
+
+        # Fix up the metadata to ensure it has a proper value for the
+        # Content-Type metadata, as well as an X_TYPE and X_OBJECT_TYPE
+        # metadata values.
+
+        content_type = metadata['Content-Type']
+        if not content_type:
+            metadata['Content-Type'] = FILE_TYPE
+            x_object_type = FILE
+        else:
+            x_object_type = MARKER_DIR if content_type.lower() == DIR_TYPE else FILE
+        metadata[X_TYPE] = OBJECT
+        metadata[X_OBJECT_TYPE] = x_object_type
+
+        if extension == '.meta':
+            # Metadata recorded separately from the file
+            self.put_metadata(metadata)
+            return True
+
+        extension = ''
+
+        if metadata[X_OBJECT_TYPE] == MARKER_DIR:
+            self.create_dir_object(os.path.join(self.datadir, self.obj))
+            self.put_metadata(metadata)
+            self.data_file = self.datadir + '/' + self.obj
+            return True
+
+        # Check if directory already exists.
+        if self.is_dir:
+            self.logger.error('Directory already exists %s/%s' % \
+                          (self.datadir , self.obj))
+            return False
+
+        timestamp = normalize_timestamp(metadata[X_TIMESTAMP])
+        write_metadata(tmppath, metadata)
+        if X_CONTENT_LENGTH in metadata:
+            self.drop_cache(fd, 0, int(metadata[X_CONTENT_LENGTH]))
+        tpool.execute(os.fsync, fd)
+        if self.obj_path:
+            dir_objs = self.obj_path.split('/')
+            tmp_path = ''
+            if len(dir_objs):
+                for dir_name in dir_objs:
+                    if tmp_path:
+                        tmp_path = tmp_path + '/' + dir_name
+                    else:
+                        tmp_path = dir_name
+                    if not self.create_dir_object(os.path.join(self.container_path,
+                            tmp_path)):
+                        self.logger.error("Failed in subdir %s",\
+                                        os.path.join(self.container_path,tmp_path))
+                        return False
+
+        renamer(tmppath, os.path.join(self.datadir,
+                                      self.obj + extension))
+        do_chown(os.path.join(self.datadir, self.obj + extension), \
+              self.uid, self.gid)
+        self.metadata = metadata
+        self.data_file = self.datadir + '/' + self.obj + extension
+        return True
+
+    def unlinkold(self, timestamp):
+        """
+        Remove any older versions of the object file.  Any file that has an
+        older timestamp than timestamp will be deleted.
+
+        :param timestamp: timestamp to compare with each file
+        """
+        if self.metadata and self.metadata['X-Timestamp'] != timestamp:
+            self.unlink()
+
+    def unlink(self):
+        """
+        Remove the file.
+        """
+        #Marker dir.
+        if self.is_dir:
+            rmdirs(os.path.join(self.datadir, self.obj))
+            if not os.path.isdir(os.path.join(self.datadir, self.obj)):
+                self.metadata = {}
+                self.data_file = None
+            else:
+                logging.error('Unable to delete dir %s' % os.path.join(self.datadir, self.obj))
+            return
+
+        for fname in do_listdir(self.datadir):
+            if fname == self.obj:
+                try:
+                    do_unlink(os.path.join(self.datadir, fname))
+                except OSError, err:
+                    if err.errno != errno.ENOENT:
+                        raise
+
+        #Remove entire path for object.
+        #remove_dir_path(self.obj_path, self.container_path)
+
+        self.metadata = {}
+        self.data_file = None
+
+    def get_data_file_size(self):
+        """
+        Returns the os.path.getsize for the file.  Raises an exception if this
+        file does not match the Content-Length stored in the metadata. Or if
+        self.data_file does not exist.
+
+        :returns: file size as an int
+        :raises DiskFileError: on file size mismatch.
+        :raises DiskFileNotExist: on file not existing (including deleted)
+        """
+        #Marker directory.
+        if self.is_dir:
+            return 0
+        try:
+            file_size = 0
+            if self.data_file:
+                file_size = os.path.getsize(self.data_file)
+                if  X_CONTENT_LENGTH in self.metadata:
+                    metadata_size = int(self.metadata[X_CONTENT_LENGTH])
+                    if file_size != metadata_size:
+                        self.metadata[X_CONTENT_LENGTH] = file_size
+                        self.update_object(self.metadata)
+
+                return file_size
+        except OSError, err:
+            if err.errno != errno.ENOENT:
+                raise
+        raise DiskFileNotExist('Data File does not exist.')
+
+    def update_object(self, metadata):
+        obj_path = self.datadir + '/' + self.obj
+        write_metadata(obj_path, metadata)
+        self.metadata = metadata
+
+    def filter_metadata(self):
+        if X_TYPE in self.metadata:
+            self.metadata.pop(X_TYPE)
+        if X_OBJECT_TYPE in self.metadata:
+            self.metadata.pop(X_OBJECT_TYPE)
+
+    @contextmanager
+    def mkstemp(self):
+        """Contextmanager to make a temporary file."""
+
+        if not os.path.exists(self.tmpdir):
+            mkdirs(self.tmpdir)
+        fd, tmppath = mkstemp(dir=self.tmpdir)
+        try:
+            yield fd, tmppath
+        finally:
+            try:
+                os.close(fd)
+            except OSError:
+                pass
+            try:
+                os.unlink(tmppath)
+            except OSError:
+                pass
diff --git a/swift/1.4.8/gluster/swift/common/Glusterfs.py b/swift/1.4.8/gluster/swift/common/Glusterfs.py
new file mode 100644
index 000000000..2d3273ed4
--- /dev/null
+++ b/swift/1.4.8/gluster/swift/common/Glusterfs.py
@@ -0,0 +1,126 @@
+# Copyright (c) 2012 Red Hat, Inc.
+#
+# 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.
+import logging
+import os, fcntl, time
+from ConfigParser import ConfigParser
+from swift.common.utils import TRUE_VALUES
+from gluster.swift.common.fs_utils import mkdirs
+
+
+#
+# Read the fs.conf file once at startup (module load)
+#
+_fs_conf = ConfigParser()
+MOUNT_IP = 'localhost'
+REMOTE_CLUSTER = False
+OBJECT_ONLY = False
+if _fs_conf.read(os.path.join('/etc/swift', 'fs.conf')):
+    try:
+        MOUNT_IP = _fs_conf.get('DEFAULT', 'mount_ip', 'localhost')
+    except (NoSectionError, NoOptionError):
+        pass
+    try:
+        REMOTE_CLUSTER = _fs_conf.get('DEFAULT', 'remote_cluster', False) in TRUE_VALUES
+    except (NoSectionError, NoOptionError):
+        pass
+    try:
+        OBJECT_ONLY = _fs_conf.get('DEFAULT', 'object_only', "no") in TRUE_VALUES
+    except (NoSectionError, NoOptionError):
+        pass
+NAME = 'glusterfs'
+
+
+def _busy_wait(full_mount_path):
+    # Iterate for definite number of time over a given
+    # interval for successful mount
+    for i in range(0, 5):
+        if os.path.ismount(os.path.join(full_mount_path)):
+            return True
+        time.sleep(2)
+    logging.error('Busy wait for mount timed out for mount %s', full_mount_path)
+    return False
+
+def mount(root, drive):
+    # FIXME: Possible thundering herd problem here
+
+    el = _get_export_list()
+    for export in el:
+        if drive == export:
+            break
+    else:
+        logging.error('No export found in %r matching drive %s', el, drive)
+        return False
+
+    # NOTE: root is typically the default value of /mnt/gluster-object
+    full_mount_path = os.path.join(root, drive)
+    if not os.path.isdir(full_mount_path):
+        mkdirs(full_mount_path)
+
+    pid_dir  = "/var/lib/glusterd/vols/%s/run/" % drive
+    pid_file = os.path.join(pid_dir, 'swift.pid');
+
+    if not os.path.exists(pid_dir):
+        mkdirs(pid_dir)
+
+    fd = os.open(pid_file, os.O_CREAT|os.O_RDWR)
+    with os.fdopen(fd, 'r+b') as f:
+        try:
+            fcntl.lockf(f, fcntl.LOCK_EX|fcntl.LOCK_NB)
+        except:
+            ex = sys.exc_info()[1]
+            if isinstance(ex, IOError) and ex.errno in (EACCES, EAGAIN):
+                # This means that some other process is mounting the
+                # filesystem, so wait for the mount process to complete
+                return _busy_wait(full_mount_path)
+
+        mnt_cmd = 'mount -t glusterfs %s:%s %s' % (MOUNT_IP, export, \
+                                                   full_mount_path)
+        if os.system(mnt_cmd) or not _busy_wait(full_mount_path):
+            logging.error('Mount failed %s: %s', NAME, mnt_cmd)
+            return False
+    return True
+
+def unmount(full_mount_path):
+    # FIXME: Possible thundering herd problem here
+
+    umnt_cmd = 'umount %s 2>> /dev/null' % full_mount_path
+    if os.system(umnt_cmd):
+        logging.error('Unable to unmount %s %s' % (full_mount_path, NAME))
+
+def _get_export_list():
+    if REMOTE_CLUSTER:
+        cmnd = 'ssh %s gluster volume info' % MOUNT_IP
+    else:
+        cmnd = 'gluster volume info'
+
+    export_list = []
+
+    if os.system(cmnd + ' >> /dev/null'):
+        if REMOTE_CLUSTER:
+            logging.error('Getting volume info failed %s, make sure to have '\
+                          'passwordless ssh on %s', NAME, MOUNT_IP)
+        else:
+            logging.error('Getting volume failed %s', NAME)
+    else:
+        fp = os.popen(cmnd)
+        while True:
+            item = fp.readline()
+            if not item:
+                break
+            item = item.strip('\n').strip(' ')
+            if item.lower().startswith('volume name:'):
+                export_list.append(item.split(':')[1].strip(' '))
+
+    return export_list
diff --git a/swift/1.4.8/gluster/swift/common/__init__.py b/swift/1.4.8/gluster/swift/common/__init__.py
new file mode 100644
index 000000000..e69de29bb
--- /dev/null
+++ b/swift/1.4.8/gluster/swift/common/__init__.py
diff --git a/swift/1.4.8/gluster/swift/common/constraints.py b/swift/1.4.8/gluster/swift/common/constraints.py
new file mode 100644
index 000000000..a4fc8008c
--- /dev/null
+++ b/swift/1.4.8/gluster/swift/common/constraints.py
@@ -0,0 +1,82 @@
+# Copyright (c) 2012 Red Hat, Inc.
+#
+# 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 webob.exc import HTTPBadRequest
+
+import swift.common.constraints
+from gluster.swift.common import Glusterfs
+
+
+MAX_OBJECT_NAME_COMPONENT_LENGTH = swift.common.constraints.constraints_conf_int(
+        'max_object_name_component_length', 255)
+
+def validate_obj_name_component(obj):
+    if len(obj) > MAX_OBJECT_NAME_COMPONENT_LENGTH:
+        return 'too long (%d)' % len(obj)
+    if obj == '.' or obj == '..':
+        return 'cannot be . or ..'
+    return ''
+
+# Save the original check object creation
+__check_object_creation = swift.common.constraints.check_object_creation
+
+# Define our new one which invokes the original
+def gluster_check_object_creation(req, object_name):
+    """
+    Check to ensure that everything is alright about an object to be created.
+    Monkey patches swift.common.constraints.check_object_creation, invoking
+    the original, and then adding an additional check for individual object
+    name components.
+
+    :param req: HTTP request object
+    :param object_name: name of object to be created
+    :raises HTTPRequestEntityTooLarge: the object is too large
+    :raises HTTPLengthRequered: missing content-length header and not
+                                a chunked request
+    :raises HTTPBadRequest: missing or bad content-type header, or
+                            bad metadata
+    """
+    ret = __check_object_creation(req, object_name)
+
+    if ret is None:
+        for obj in object_name.split('/'):
+            reason = validate_obj_name_component(obj)
+            if reason:
+                bdy = 'Invalid object name "%s", component "%s" %s' \
+                        % (object_name, obj, reason)
+                ret = HTTPBadRequest(body=bdy,
+                                     request=req,
+                                     content_type='text/plain')
+
+    return ret
+
+# Replace the original check object creation with ours
+swift.common.constraints.check_object_creation = gluster_check_object_creation
+
+# Save the original check mount
+__check_mount = swift.common.constraints.check_mount
+
+# Define our new one which invokes the original
+def gluster_check_mount(root, drive):
+    # FIXME: Potential performance optimization here to not call the original
+    # check mount which makes two stat calls. We could do what they do with
+    # just one.
+    if __check_mount(root, drive):
+        return True
+
+    return Glusterfs.mount(root, drive)
+
+# Replace the original check mount with ours
+swift.common.constraints.check_mount = gluster_check_mount
diff --git a/swift/1.4.8/gluster/swift/common/fs_utils.py b/swift/1.4.8/gluster/swift/common/fs_utils.py
new file mode 100644
index 000000000..7f5292c2b
--- /dev/null
+++ b/swift/1.4.8/gluster/swift/common/fs_utils.py
@@ -0,0 +1,156 @@
+# Copyright (c) 2012 Red Hat, Inc.
+#
+# 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.
+
+import logging
+import os
+import errno
+
+def do_mkdir(path):
+    try:
+        os.mkdir(path)
+    except Exception, err:
+        logging.exception("Mkdir failed on %s err: %s", path, str(err))
+        if err.errno != errno.EEXIST:
+            raise
+    return True
+
+def do_makedirs(path):
+    try:
+        os.makedirs(path)
+    except Exception, err:
+        logging.exception("Makedirs failed on %s err: %s", path, str(err))
+        if err.errno != errno.EEXIST:
+            raise
+    return True
+
+def do_listdir(path):
+    try:
+        buf = os.listdir(path)
+    except Exception, err:
+        logging.exception("Listdir failed on %s err: %s", path, str(err))
+        raise
+    return buf
+
+def do_chown(path, uid, gid):
+    try:
+        os.chown(path, uid, gid)
+    except Exception, err:
+        logging.exception("Chown failed on %s err: %s", path, str(err))
+        raise
+    return True
+
+def do_stat(path):
+    try:
+        #Check for fd.
+        if isinstance(path, int):
+            buf = os.fstat(path)
+        else:
+            buf = os.stat(path)
+    except Exception, err:
+        logging.exception("Stat failed on %s err: %s", path, str(err))
+        raise
+
+    return buf
+
+def do_open(path, mode):
+    try:
+        fd = open(path, mode)
+    except Exception, err:
+        logging.exception("Open failed on %s err: %s", path, str(err))
+        raise
+    return fd
+
+def do_close(fd):
+    #fd could be file or int type.
+    try:
+        if isinstance(fd, int):
+            os.close(fd)
+        else:
+            fd.close()
+    except Exception, err:
+        logging.exception("Close failed on %s err: %s", fd, str(err))
+        raise
+    return True
+
+def do_unlink(path, log = True):
+    try:
+        os.unlink(path)
+    except Exception, err:
+        if log:
+            logging.exception("Unlink failed on %s err: %s", path, str(err))
+        if err.errno != errno.ENOENT:
+            raise
+    return True
+
+def do_rmdir(path):
+    try:
+        os.rmdir(path)
+    except Exception, err:
+        logging.exception("Rmdir failed on %s err: %s", path, str(err))
+        if err.errno != errno.ENOENT:
+            raise
+    return True
+
+def do_rename(old_path, new_path):
+    try:
+        os.rename(old_path, new_path)
+    except Exception, err:
+        logging.exception("Rename failed on %s to %s  err: %s", old_path, new_path, \
+                          str(err))
+        raise
+    return True
+
+def mkdirs(path):
+    """
+    Ensures the path is a directory or makes it if not. Errors if the path
+    exists but is a file or on permissions failure.
+
+    :param path: path to create
+    """
+    if not os.path.isdir(path):
+        try:
+            do_makedirs(path)
+        except OSError, err:
+            #TODO: check, isdir will fail if mounted and volume stopped.
+            #if err.errno != errno.EEXIST or not os.path.isdir(path)
+            if err.errno != errno.EEXIST:
+                raise
+
+def dir_empty(path):
+    """
+    Return true if directory/container is empty.
+    :param path: Directory path.
+    :returns: True/False.
+    """
+    if os.path.isdir(path):
+        try:
+            files = do_listdir(path)
+        except Exception, err:
+            logging.exception("listdir failed on %s err: %s", path, str(err))
+            raise
+        if not files:
+            return True
+        else:
+            return False
+    else:
+        if not os.path.exists(path):
+            return True
+
+def rmdirs(path):
+    if os.path.isdir(path) and dir_empty(path):
+        do_rmdir(path)
+    else:
+        logging.error("rmdirs failed dir may not be empty or not valid dir")
+        return False
diff --git a/swift/1.4.8/gluster/swift/common/middleware/__init__.py b/swift/1.4.8/gluster/swift/common/middleware/__init__.py
new file mode 100644
index 000000000..e69de29bb
--- /dev/null
+++ b/swift/1.4.8/gluster/swift/common/middleware/__init__.py
diff --git a/swift/1.4.8/gluster/swift/common/middleware/gluster.py b/swift/1.4.8/gluster/swift/common/middleware/gluster.py
new file mode 100644
index 000000000..ab63c51e1
--- /dev/null
+++ b/swift/1.4.8/gluster/swift/common/middleware/gluster.py
@@ -0,0 +1,40 @@
+# Copyright (c) 2012 Red Hat, Inc.
+#
+# 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.
+
+# Noop Middleware that simply allows us to monkey patch the constraints
+import gluster.swift.common.constraints
+
+class Gluster(object):
+    """
+    Noop middleware for use with the proxy server to get paste.deploy to load
+    this middleware such that the plugin constraints monkey patch the common
+    constraints ahead of their use.
+    """
+    def __init__(self, app, conf):
+        self.app = app
+        self.conf = conf
+
+    def __call__(self, env, start_response):
+        return self.app(env, start_response)
+
+
+def filter_factory(global_conf, **local_conf):
+    """Returns a WSGI filter app for use with paste.deploy."""
+    conf = global_conf.copy()
+    conf.update(local_conf)
+
+    def gluster_filter(app):
+        return Gluster(app, conf)
+    return gluster_filter
diff --git a/swift/1.4.8/gluster/swift/common/utils.py b/swift/1.4.8/gluster/swift/common/utils.py
new file mode 100644
index 000000000..56376f8ee
--- /dev/null
+++ b/swift/1.4.8/gluster/swift/common/utils.py
@@ -0,0 +1,457 @@
+# Copyright (c) 2012 Red Hat, Inc.
+#
+# 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.
+
+import logging
+import os
+import errno
+import xattr
+from hashlib import md5
+import cPickle as pickle
+from ConfigParser import ConfigParser, NoSectionError, NoOptionError
+from swift.common.utils import normalize_timestamp, TRUE_VALUES
+from gluster.swift.common.fs_utils import *
+from gluster.swift.common import Glusterfs
+
+X_CONTENT_TYPE = 'Content-Type'
+X_CONTENT_LENGTH = 'Content-Length'
+X_TIMESTAMP = 'X-Timestamp'
+X_PUT_TIMESTAMP = 'X-PUT-Timestamp'
+X_TYPE = 'X-Type'
+X_ETAG = 'ETag'
+X_OBJECTS_COUNT = 'X-Object-Count'
+X_BYTES_USED = 'X-Bytes-Used'
+X_CONTAINER_COUNT = 'X-Container-Count'
+X_OBJECT_TYPE = 'X-Object-Type'
+DIR_TYPE = 'application/directory'
+ACCOUNT = 'Account'
+METADATA_KEY = 'user.swift.metadata'
+MAX_XATTR_SIZE = 65536
+CONTAINER = 'container'
+DIR = 'dir'
+MARKER_DIR = 'marker_dir'
+TEMP_DIR = 'tmp'
+ASYNCDIR = 'async_pending'  # Keep in sync with swift.obj.server.ASYNCDIR
+FILE = 'file'
+FILE_TYPE = 'application/octet-stream'
+OBJECT = 'Object'
+OBJECT_TYPE = 'application/octet-stream'
+DEFAULT_UID = -1
+DEFAULT_GID = -1
+PICKLE_PROTOCOL = 2
+CHUNK_SIZE = 65536
+MEMCACHE_KEY_PREFIX = 'gluster.swift.'
+MEMCACHE_ACCOUNT_DETAILS_KEY_PREFIX = MEMCACHE_KEY_PREFIX + 'account.details.'
+MEMCACHE_CONTAINER_DETAILS_KEY_PREFIX = MEMCACHE_KEY_PREFIX + 'container.details.'
+
+
+def read_metadata(path):
+    """
+    Helper function to read the pickled metadata from a File/Directory.
+
+    :param path: File/Directory to read metadata from.
+
+    :returns: dictionary of metadata
+    """
+    metadata = None
+    metadata_s = ''
+    key = 0
+    while metadata is None:
+        try:
+            metadata_s += xattr.get(path, '%s%s' % (METADATA_KEY, (key or '')))
+        except IOError as err:
+            if err.errno == errno.ENODATA:
+                if key > 0:
+                    # No errors reading the xattr keys, but since we have not
+                    # been able to find enough chunks to get a successful
+                    # unpickle operation, we consider the metadata lost, and
+                    # drop the existing data so that the internal state can be
+                    # recreated.
+                    clean_metadata(path)
+                # We either could not find any metadata key, or we could find
+                # some keys, but were not successful in performing the
+                # unpickling (missing keys perhaps)? Either way, just report
+                # to the caller we have no metadata.
+                metadata = {}
+            else:
+                logging.exception("xattr.get failed on %s key %s err: %s",
+                                  path, key, str(err))
+                # Note that we don't touch the keys on errors fetching the
+                # data since it could be a transient state.
+                raise
+        else:
+            try:
+                # If this key provides all or the remaining part of the pickle
+                # data, we don't need to keep searching for more keys. This
+                # means if we only need to store data in N xattr key/value
+                # pair, we only need to invoke xattr get N times. With large
+                # keys sizes we are shooting for N = 1.
+                metadata = pickle.loads(metadata_s)
+                assert isinstance(metadata, dict)
+            except EOFError, pickle.UnpicklingError:
+                # We still are not able recognize this existing data collected
+                # as a pickled object. Make sure we loop around to try to get
+                # more from another xattr key.
+                metadata = None
+                key += 1
+    return metadata
+
+def write_metadata(path, metadata):
+    """
+    Helper function to write pickled metadata for a File/Directory.
+
+    :param path: File/Directory path to write the metadata
+    :param metadata: dictionary to metadata write
+    """
+    assert isinstance(metadata, dict)
+    metastr = pickle.dumps(metadata, PICKLE_PROTOCOL)
+    key = 0
+    while metastr:
+        try:
+            xattr.set(path, '%s%s' % (METADATA_KEY, key or ''), metastr[:MAX_XATTR_SIZE])
+        except IOError as err:
+            logging.exception("xattr.set failed on %s key %s err: %s", path, key, str(err))
+            raise
+        metastr = metastr[MAX_XATTR_SIZE:]
+        key += 1
+
+def clean_metadata(path):
+    key = 0
+    while True:
+        try:
+            xattr.remove(path, '%s%s' % (METADATA_KEY, (key or '')))
+        except IOError as err:
+            if err.errno == errno.ENODATA:
+                break
+            raise
+        key += 1
+
+def check_user_xattr(path):
+    if not os.path.exists(path):
+        return False
+    try:
+        xattr.set(path, 'user.test.key1', 'value1')
+    except IOError as err:
+        logging.exception("check_user_xattr: set failed on %s err: %s", path, str(err))
+        raise
+    try:
+        xattr.remove(path, 'user.test.key1')
+    except IOError as err:
+        logging.exception("check_user_xattr: remove failed on %s err: %s", path, str(err))
+        #Remove xattr may fail in case of concurrent remove.
+    return True
+
+def validate_container(metadata):
+    if not metadata:
+        logging.warn('validate_container: No metadata')
+        return False
+
+    if X_TYPE not in metadata.keys() or \
+       X_TIMESTAMP not in metadata.keys() or \
+       X_PUT_TIMESTAMP not in metadata.keys() or \
+       X_OBJECTS_COUNT not in metadata.keys() or \
+       X_BYTES_USED not in metadata.keys():
+        #logging.warn('validate_container: Metadata missing entries: %s' % metadata)
+        return False
+
+    (value, timestamp) = metadata[X_TYPE]
+    if value == CONTAINER:
+        return True
+
+    logging.warn('validate_container: metadata type is not CONTAINER (%r)' % (value,))
+    return False
+
+def validate_account(metadata):
+    if not metadata:
+        logging.warn('validate_account: No metadata')
+        return False
+
+    if X_TYPE not in metadata.keys() or \
+       X_TIMESTAMP not in metadata.keys() or \
+       X_PUT_TIMESTAMP not in metadata.keys() or \
+       X_OBJECTS_COUNT not in metadata.keys() or \
+       X_BYTES_USED not in metadata.keys() or \
+       X_CONTAINER_COUNT not in metadata.keys():
+        #logging.warn('validate_account: Metadata missing entries: %s' % metadata)
+        return False
+
+    (value, timestamp) = metadata[X_TYPE]
+    if value == ACCOUNT:
+        return True
+
+    logging.warn('validate_account: metadata type is not ACCOUNT (%r)' % (value,))
+    return False
+
+def validate_object(metadata):
+    if not metadata:
+        logging.warn('validate_object: No metadata')
+        return False
+
+    if X_TIMESTAMP not in metadata.keys() or \
+       X_CONTENT_TYPE not in metadata.keys() or \
+       X_ETAG not in metadata.keys() or \
+       X_CONTENT_LENGTH not in metadata.keys() or \
+       X_TYPE not in metadata.keys() or \
+       X_OBJECT_TYPE not in metadata.keys():
+        #logging.warn('validate_object: Metadata missing entries: %s' % metadata)
+        return False
+
+    if metadata[X_TYPE] == OBJECT:
+        return True
+
+    logging.warn('validate_object: metadata type is not OBJECT (%r)' % (metadata[X_TYPE],))
+    return False
+
+def is_marker(metadata):
+    if not metadata:
+        logging.warn('is_marker: No metadata')
+        return False
+
+    if X_OBJECT_TYPE not in metadata.keys():
+        logging.warn('is_marker: X_OBJECT_TYPE missing from metadata: %s' % metadata)
+        return False
+
+    if metadata[X_OBJECT_TYPE] == MARKER_DIR:
+        return True
+    else:
+        return False
+
+def _update_list(path, cont_path, src_list, reg_file=True, object_count=0,
+                 bytes_used=0, obj_list=[]):
+    # strip the prefix off, also stripping the leading and trailing slashes
+    obj_path = path.replace(cont_path, '').strip(os.path.sep)
+
+    for i in src_list:
+        if obj_path:
+            obj_list.append(os.path.join(obj_path, i))
+        else:
+            obj_list.append(i)
+
+        object_count += 1
+
+        if reg_file:
+            bytes_used += os.path.getsize(path + '/' + i)
+
+    return object_count, bytes_used
+
+def update_list(path, cont_path, dirs=[], files=[], object_count=0,
+                bytes_used=0, obj_list=[]):
+    object_count, bytes_used = _update_list(path, cont_path, files, True,
+                                            object_count, bytes_used,
+                                            obj_list)
+    object_count, bytes_used = _update_list(path, cont_path, dirs, False,
+                                            object_count, bytes_used,
+                                            obj_list)
+    return object_count, bytes_used
+
+
+class ContainerDetails(object):
+    def __init__(self, bytes_used, object_count, obj_list, dir_list):
+        self.bytes_used = bytes_used
+        self.object_count = object_count
+        self.obj_list = obj_list
+        self.dir_list = dir_list
+
+
+def _get_container_details_from_fs(cont_path):
+    """
+    get container details by traversing the filesystem
+    """
+    bytes_used = 0
+    object_count = 0
+    obj_list = []
+    dir_list = []
+
+    if os.path.isdir(cont_path):
+        for (path, dirs, files) in os.walk(cont_path):
+            object_count, bytes_used = update_list(path, cont_path, dirs, files,
+                                                   object_count, bytes_used,
+                                                   obj_list)
+
+            dir_list.append((path, do_stat(path).st_mtime))
+
+    return ContainerDetails(bytes_used, object_count, obj_list, dir_list)
+
+def get_container_details(cont_path, memcache=None):
+    """
+    Return object_list, object_count and bytes_used.
+    """
+    mkey = ''
+    if memcache:
+        mkey = MEMCACHE_CONTAINER_DETAILS_KEY_PREFIX + cont_path
+        cd = memcache.get(mkey)
+        if cd:
+            if not cd.dir_list:
+                cd = None
+            else:
+                for (path, mtime) in cd.dir_list:
+                    if mtime != do_stat(path).st_mtime:
+                        cd = None
+    else:
+        cd = None
+    if not cd:
+        cd = _get_container_details_from_fs(cont_path)
+        if memcache:
+            memcache.set(mkey, cd)
+    return cd.obj_list, cd.object_count, cd.bytes_used
+
+
+class AccountDetails(object):
+    """ A simple class to store the three pieces of information associated
+        with an account:
+
+        1. The last known modification time
+        2. The count of containers in the following list
+        3. The list of containers
+    """
+    def __init__(self, mtime, container_count, container_list):
+        self.mtime = mtime
+        self.container_count = container_count
+        self.container_list = container_list
+
+
+def _get_account_details_from_fs(acc_path, acc_stats):
+    container_list = []
+    container_count = 0
+
+    if not acc_stats:
+        acc_stats = do_stat(acc_path)
+    is_dir = (acc_stats.st_mode & 0040000) != 0
+    if is_dir:
+        for name in do_listdir(acc_path):
+            if name.lower() == TEMP_DIR \
+                    or name.lower() == ASYNCDIR \
+                    or not os.path.isdir(os.path.join(acc_path, name)):
+                continue
+            container_count += 1
+            container_list.append(name)
+
+    return AccountDetails(acc_stats.st_mtime, container_count, container_list)
+
+def get_account_details(acc_path, memcache=None):
+    """
+    Return container_list and container_count.
+    """
+    acc_stats = None
+    mkey = ''
+    if memcache:
+        mkey = MEMCACHE_ACCOUNT_DETAILS_KEY_PREFIX + acc_path
+        ad = memcache.get(mkey)
+        if ad:
+            # FIXME: Do we really need to stat the file? If we are object
+            # only, then we can track the other Swift HTTP APIs that would
+            # modify the account and invalidate the cached entry there. If we
+            # are not object only, are we even called on this path?
+            acc_stats = do_stat(acc_path)
+            if ad.mtime != acc_stats.st_mtime:
+                ad = None
+    else:
+        ad = None
+    if not ad:
+        ad = _get_account_details_from_fs(acc_path, acc_stats)
+        if memcache:
+            memcache.set(mkey, ad)
+    return ad.container_list, ad.container_count
+
+def _get_etag(path):
+    etag = md5()
+    with open(path, 'rb') as fp:
+        while True:
+            chunk = fp.read(CHUNK_SIZE)
+            if chunk:
+                etag.update(chunk)
+            else:
+                break
+    return etag.hexdigest()
+
+def get_object_metadata(obj_path):
+    """
+    Return metadata of object.
+    """
+    try:
+        stats = os.stat(obj_path)
+    except OSError as e:
+        if e.errno != errno.ENOENT:
+            raise
+        metadata = {}
+    else:
+        is_dir = (stats.st_mode & 0040000) != 0
+        metadata = {
+            X_TYPE: OBJECT,
+            X_TIMESTAMP: normalize_timestamp(stats.st_ctime),
+            X_CONTENT_TYPE: DIR_TYPE if is_dir else FILE_TYPE,
+            X_OBJECT_TYPE: DIR if is_dir else FILE,
+            X_CONTENT_LENGTH: 0 if is_dir else stats.st_size,
+            X_ETAG: md5().hexdigest() if is_dir else _get_etag(obj_path),
+            }
+    return metadata
+
+def _add_timestamp(metadata_i):
+    # At this point we have a simple key/value dictionary, turn it into
+    # key/(value,timestamp) pairs.
+    timestamp = 0
+    metadata = {}
+    for key, value_i in metadata_i.iteritems():
+        if not isinstance(value_i, tuple):
+            metadata[key] = (value_i, timestamp)
+        else:
+            metadata[key] = value_i
+    return metadata
+
+def get_container_metadata(cont_path, memcache=None):
+    objects = []
+    object_count = 0
+    bytes_used = 0
+    objects, object_count, bytes_used = get_container_details(cont_path, memcache)
+    metadata = {X_TYPE: CONTAINER,
+                X_TIMESTAMP: normalize_timestamp(os.path.getctime(cont_path)),
+                X_PUT_TIMESTAMP: normalize_timestamp(os.path.getmtime(cont_path)),
+                X_OBJECTS_COUNT: object_count,
+                X_BYTES_USED: bytes_used}
+    return _add_timestamp(metadata)
+
+def get_account_metadata(acc_path, memcache=None):
+    containers = []
+    container_count = 0
+    containers, container_count = get_account_details(acc_path, memcache)
+    metadata = {X_TYPE: ACCOUNT,
+                X_TIMESTAMP: normalize_timestamp(os.path.getctime(acc_path)),
+                X_PUT_TIMESTAMP: normalize_timestamp(os.path.getmtime(acc_path)),
+                X_OBJECTS_COUNT: 0,
+                X_BYTES_USED: 0,
+                X_CONTAINER_COUNT: container_count}
+    return _add_timestamp(metadata)
+
+def restore_metadata(path, metadata):
+    meta_orig = read_metadata(path)
+    if meta_orig:
+        meta_new = meta_orig.copy()
+        meta_new.update(metadata)
+    else:
+        meta_new = metadata
+    if meta_orig != meta_new:
+        write_metadata(path, meta_new)
+    return meta_new
+
+def create_object_metadata(obj_path):
+    metadata = get_object_metadata(obj_path)
+    return restore_metadata(obj_path, metadata)
+
+def create_container_metadata(cont_path, memcache=None):
+    metadata = get_container_metadata(cont_path, memcache)
+    return restore_metadata(cont_path, metadata)
+
+def create_account_metadata(acc_path, memcache=None):
+    metadata = get_account_metadata(acc_path, memcache)
+    return restore_metadata(acc_path, metadata)
diff --git a/swift/1.4.8/gluster/swift/container/__init__.py b/swift/1.4.8/gluster/swift/container/__init__.py
new file mode 100644
index 000000000..e69de29bb
--- /dev/null
+++ b/swift/1.4.8/gluster/swift/container/__init__.py
diff --git a/swift/1.4.8/gluster/swift/container/server.py b/swift/1.4.8/gluster/swift/container/server.py
new file mode 100644
index 000000000..e2a197302
--- /dev/null
+++ b/swift/1.4.8/gluster/swift/container/server.py
@@ -0,0 +1,46 @@
+# Copyright (c) 2012 Red Hat, Inc.
+#
+# 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.
+
+""" Container Server for Gluster Swift UFO """
+
+# Simply importing this monkey patches the constraint handling to fit our
+# needs
+import gluster.swift.common.constraints
+
+from swift.container import server
+from gluster.swift.common.DiskDir import DiskDir
+
+
+class ContainerController(server.ContainerController):
+    def _get_container_broker(self, drive, part, account, container):
+        """
+        Overriden to provide the GlusterFS specific broker that talks to
+        Gluster for the information related to servicing a given request
+        instead of talking to a database.
+
+        :param drive: drive that holds the container
+        :param part: partition the container is in
+        :param account: account name
+        :param container: container name
+        :returns: DiskDir object
+        """
+        return DiskDir(self.root, account, container, self.logger)
+
+
+def app_factory(global_conf, **local_conf):
+    """paste.deploy app factory for creating WSGI container server apps."""
+    conf = global_conf.copy()
+    conf.update(local_conf)
+    return ContainerController(conf)
diff --git a/swift/1.4.8/gluster/swift/obj/__init__.py b/swift/1.4.8/gluster/swift/obj/__init__.py
new file mode 100644
index 000000000..e69de29bb
--- /dev/null
+++ b/swift/1.4.8/gluster/swift/obj/__init__.py
diff --git a/swift/1.4.8/gluster/swift/obj/server.py b/swift/1.4.8/gluster/swift/obj/server.py
new file mode 100644
index 000000000..43cdd8890
--- /dev/null
+++ b/swift/1.4.8/gluster/swift/obj/server.py
@@ -0,0 +1,33 @@
+# Copyright (c) 2012 Red Hat, Inc.
+#
+# 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.
+
+""" Object Server for Gluster Swift UFO """
+
+# Simply importing this monkey patches the constraint handling to fit our
+# needs
+import gluster.swift.common.constraints
+
+from swift.obj import server
+from gluster.swift.common.DiskFile import Gluster_DiskFile
+
+# Monkey patch the object server module to use Gluster's DiskFile definition
+server.DiskFile = Gluster_DiskFile
+
+
+def app_factory(global_conf, **local_conf):
+    """paste.deploy app factory for creating WSGI object server apps"""
+    conf = global_conf.copy()
+    conf.update(local_conf)
+    return server.ObjectController(conf)
diff --git a/swift/1.4.8/gluster/swift/proxy/__init__.py b/swift/1.4.8/gluster/swift/proxy/__init__.py
new file mode 100644
index 000000000..e69de29bb
--- /dev/null
+++ b/swift/1.4.8/gluster/swift/proxy/__init__.py
diff --git a/swift/1.4.8/gluster/swift/proxy/server.py b/swift/1.4.8/gluster/swift/proxy/server.py
new file mode 100644
index 000000000..792a97df9
--- /dev/null
+++ b/swift/1.4.8/gluster/swift/proxy/server.py
@@ -0,0 +1,27 @@
+# Copyright (c) 2012 Red Hat, Inc.
+#
+# 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.
+
+
+# Simply importing this monkey patches the constraint handling to fit our
+# needs
+import gluster.swift.common.constraints
+
+from swift.proxy import server
+
+def app_factory(global_conf, **local_conf):
+    """paste.deploy app factory for creating WSGI proxy apps."""
+    conf = global_conf.copy()
+    conf.update(local_conf)
+    return server.Application(conf)