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-rw-r--r--ufo/gluster/__init__.py0
-rw-r--r--ufo/gluster/swift/__init__.py18
-rw-r--r--ufo/gluster/swift/account/__init__.py0
-rw-r--r--ufo/gluster/swift/account/server.py45
-rw-r--r--ufo/gluster/swift/common/DiskDir.py500
-rw-r--r--ufo/gluster/swift/common/DiskFile.py323
-rw-r--r--ufo/gluster/swift/common/Glusterfs.py126
-rw-r--r--ufo/gluster/swift/common/__init__.py0
-rw-r--r--ufo/gluster/swift/common/constraints.py82
-rw-r--r--ufo/gluster/swift/common/fs_utils.py156
-rw-r--r--ufo/gluster/swift/common/middleware/__init__.py0
-rw-r--r--ufo/gluster/swift/common/middleware/gluster.py40
-rw-r--r--ufo/gluster/swift/common/utils.py457
-rw-r--r--ufo/gluster/swift/container/__init__.py0
-rw-r--r--ufo/gluster/swift/container/server.py46
-rw-r--r--ufo/gluster/swift/obj/__init__.py0
-rw-r--r--ufo/gluster/swift/obj/server.py33
-rw-r--r--ufo/gluster/swift/proxy/__init__.py0
-rw-r--r--ufo/gluster/swift/proxy/server.py27
19 files changed, 1853 insertions, 0 deletions
diff --git a/ufo/gluster/__init__.py b/ufo/gluster/__init__.py
new file mode 100644
index 00000000000..e69de29bb2d
--- /dev/null
+++ b/ufo/gluster/__init__.py
diff --git a/ufo/gluster/swift/__init__.py b/ufo/gluster/swift/__init__.py
new file mode 100644
index 00000000000..17578ebee40
--- /dev/null
+++ b/ufo/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/ufo/gluster/swift/account/__init__.py b/ufo/gluster/swift/account/__init__.py
new file mode 100644
index 00000000000..e69de29bb2d
--- /dev/null
+++ b/ufo/gluster/swift/account/__init__.py
diff --git a/ufo/gluster/swift/account/server.py b/ufo/gluster/swift/account/server.py
new file mode 100644
index 00000000000..8b98315790a
--- /dev/null
+++ b/ufo/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/ufo/gluster/swift/common/DiskDir.py b/ufo/gluster/swift/common/DiskDir.py
new file mode 100644
index 00000000000..8602fabae83
--- /dev/null
+++ b/ufo/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/ufo/gluster/swift/common/DiskFile.py b/ufo/gluster/swift/common/DiskFile.py
new file mode 100644
index 00000000000..6404be6d68f
--- /dev/null
+++ b/ufo/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/ufo/gluster/swift/common/Glusterfs.py b/ufo/gluster/swift/common/Glusterfs.py
new file mode 100644
index 00000000000..2d3273ed429
--- /dev/null
+++ b/ufo/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/ufo/gluster/swift/common/__init__.py b/ufo/gluster/swift/common/__init__.py
new file mode 100644
index 00000000000..e69de29bb2d
--- /dev/null
+++ b/ufo/gluster/swift/common/__init__.py
diff --git a/ufo/gluster/swift/common/constraints.py b/ufo/gluster/swift/common/constraints.py
new file mode 100644
index 00000000000..a4fc8008c7e
--- /dev/null
+++ b/ufo/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/ufo/gluster/swift/common/fs_utils.py b/ufo/gluster/swift/common/fs_utils.py
new file mode 100644
index 00000000000..7f5292c2bf1
--- /dev/null
+++ b/ufo/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/ufo/gluster/swift/common/middleware/__init__.py b/ufo/gluster/swift/common/middleware/__init__.py
new file mode 100644
index 00000000000..e69de29bb2d
--- /dev/null
+++ b/ufo/gluster/swift/common/middleware/__init__.py
diff --git a/ufo/gluster/swift/common/middleware/gluster.py b/ufo/gluster/swift/common/middleware/gluster.py
new file mode 100644
index 00000000000..ab63c51e12f
--- /dev/null
+++ b/ufo/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/ufo/gluster/swift/common/utils.py b/ufo/gluster/swift/common/utils.py
new file mode 100644
index 00000000000..56376f8eed5
--- /dev/null
+++ b/ufo/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/ufo/gluster/swift/container/__init__.py b/ufo/gluster/swift/container/__init__.py
new file mode 100644
index 00000000000..e69de29bb2d
--- /dev/null
+++ b/ufo/gluster/swift/container/__init__.py
diff --git a/ufo/gluster/swift/container/server.py b/ufo/gluster/swift/container/server.py
new file mode 100644
index 00000000000..e2a19730220
--- /dev/null
+++ b/ufo/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/ufo/gluster/swift/obj/__init__.py b/ufo/gluster/swift/obj/__init__.py
new file mode 100644
index 00000000000..e69de29bb2d
--- /dev/null
+++ b/ufo/gluster/swift/obj/__init__.py
diff --git a/ufo/gluster/swift/obj/server.py b/ufo/gluster/swift/obj/server.py
new file mode 100644
index 00000000000..43cdd8890d2
--- /dev/null
+++ b/ufo/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/ufo/gluster/swift/proxy/__init__.py b/ufo/gluster/swift/proxy/__init__.py
new file mode 100644
index 00000000000..e69de29bb2d
--- /dev/null
+++ b/ufo/gluster/swift/proxy/__init__.py
diff --git a/ufo/gluster/swift/proxy/server.py b/ufo/gluster/swift/proxy/server.py
new file mode 100644
index 00000000000..792a97df9a2
--- /dev/null
+++ b/ufo/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)
generated by cgit (git 2.34.1) at 2024-11-20 17:44:09 +0000