import os
import sys
import llfuse
-from llfuse import FUSEError
import errno
import stat
import threading
import json
import logging
import time
+import _strptime
import calendar
import threading
+import itertools
+import ciso8601
+
from arvados.util import portable_data_hash_pattern, uuid_pattern, collection_uuid_pattern, group_uuid_pattern, user_uuid_pattern, link_uuid_pattern
_logger = logging.getLogger('arvados.arvados_fuse')
-class SafeApi(object):
- '''Threadsafe wrapper for API object. This stores and returns a different api
- object per thread, because httplib2 which underlies apiclient is not
- threadsafe.
- '''
-
- def __init__(self, config):
- self.host = config.get('ARVADOS_API_HOST')
- self.api_token = config.get('ARVADOS_API_TOKEN')
- self.insecure = config.flag_is_true('ARVADOS_API_HOST_INSECURE')
- self.local = threading.local()
- self.block_cache = arvados.KeepBlockCache()
-
- def localapi(self):
- if 'api' not in self.local.__dict__:
- self.local.api = arvados.api('v1', False, self.host,
- self.api_token, self.insecure)
- return self.local.api
-
- def localkeep(self):
- if 'keep' not in self.local.__dict__:
- self.local.keep = arvados.KeepClient(api_client=self.localapi(), block_cache=self.block_cache)
- return self.local.keep
-
- def __getattr__(self, name):
- # Proxy nonexistent attributes to the local API client.
- try:
- return getattr(self.localapi(), name)
- except AttributeError:
- return super(SafeApi, self).__getattr__(name)
-
+# Match any character which FUSE or Linux cannot accommodate as part
+# of a filename. (If present in a collection filename, they will
+# appear as underscores in the fuse mount.)
+_disallowed_filename_characters = re.compile('[\x00/]')
def convertTime(t):
- '''Parse Arvados timestamp to unix time.'''
+ """Parse Arvados timestamp to unix time."""
+ if not t:
+ return 0
try:
- return calendar.timegm(time.strptime(t, "%Y-%m-%dT%H:%M:%SZ"))
+ return calendar.timegm(ciso8601.parse_datetime_unaware(t).timetuple())
except (TypeError, ValueError):
return 0
def sanitize_filename(dirty):
- '''Remove troublesome characters from filenames.'''
- # http://www.dwheeler.com/essays/fixing-unix-linux-filenames.html
+ '''Replace disallowed filename characters with harmless "_".'''
if dirty is None:
return None
-
- fn = ""
- for c in dirty:
- if (c >= '\x00' and c <= '\x1f') or c == '\x7f' or c == '/':
- # skip control characters and /
- continue
- fn += c
-
- # strip leading - or ~ and leading/trailing whitespace
- stripped = fn.lstrip("-~ ").rstrip()
- if len(stripped) > 0:
- return stripped
+ elif dirty == '':
+ return '_'
+ elif dirty == '.':
+ return '_'
+ elif dirty == '..':
+ return '__'
else:
- return None
+ return _disallowed_filename_characters.sub('_', dirty)
class FreshBase(object):
n.clear()
llfuse.invalidate_entry(self.inode, str(n))
self.inodes.del_entry(oldentries[n])
+ llfuse.invalidate_inode(self.inode)
self.invalidate()
def mtime(self):
class CollectionDirectory(Directory):
'''Represents the root of a directory tree holding a collection.'''
- def __init__(self, parent_inode, inodes, api, collection):
+ def __init__(self, parent_inode, inodes, api, num_retries, collection):
super(CollectionDirectory, self).__init__(parent_inode)
self.inodes = inodes
self.api = api
+ self.num_retries = num_retries
self.collection_object_file = None
self.collection_object = None
if isinstance(collection, dict):
self.collection_locator = collection['uuid']
+ self._mtime = convertTime(collection.get('modified_at'))
else:
self.collection_locator = collection
+ self._mtime = 0
def same(self, i):
return i['uuid'] == self.collection_locator or i['portable_data_hash'] == self.collection_locator
- def new_collection(self, new_collection_object):
+ # Used by arv-web.py to switch the contents of the CollectionDirectory
+ def change_collection(self, new_locator):
+ """Switch the contents of the CollectionDirectory. Must be called with llfuse.lock held."""
+ self.collection_locator = new_locator
+ self.collection_object = None
+ self.update()
+
+ def new_collection(self, new_collection_object, coll_reader):
self.collection_object = new_collection_object
+ self._mtime = convertTime(self.collection_object.get('modified_at'))
+
if self.collection_object_file is not None:
self.collection_object_file.update(self.collection_object)
self.clear()
- collection = arvados.CollectionReader(self.collection_object["manifest_text"], self.api, self.api.localkeep())
- for s in collection.all_streams():
+ for s in coll_reader.all_streams():
cwd = self
for part in s.name().split('/'):
if part != '' and part != '.':
if self.collection_object is not None and portable_data_hash_pattern.match(self.collection_locator):
return True
+ if self.collection_locator is None:
+ self.fresh()
+ return True
+
with llfuse.lock_released:
- new_collection_object = self.api.collections().get(uuid=self.collection_locator).execute()
+ coll_reader = arvados.CollectionReader(
+ self.collection_locator, self.api, self.api.keep,
+ num_retries=self.num_retries)
+ new_collection_object = coll_reader.api_response() or {}
+ # If the Collection only exists in Keep, there will be no API
+ # response. Fill in the fields we need.
+ if 'uuid' not in new_collection_object:
+ new_collection_object['uuid'] = self.collection_locator
if "portable_data_hash" not in new_collection_object:
new_collection_object["portable_data_hash"] = new_collection_object["uuid"]
+ if 'manifest_text' not in new_collection_object:
+ new_collection_object['manifest_text'] = coll_reader.manifest_text()
+ coll_reader.normalize()
# end with llfuse.lock_released, re-acquire lock
if self.collection_object is None or self.collection_object["portable_data_hash"] != new_collection_object["portable_data_hash"]:
- self.new_collection(new_collection_object)
+ self.new_collection(new_collection_object, coll_reader)
self.fresh()
return True
- except apiclient.errors.HttpError as e:
- if e.resp.status == 404:
- _logger.warn("arv-mount %s: not found", self.collection_locator)
- else:
- _logger.error("arv-mount %s: error", self.collection_locator)
- _logger.exception(detail)
+ except arvados.errors.NotFoundError:
+ _logger.exception("arv-mount %s: error", self.collection_locator)
except arvados.errors.ArgumentError as detail:
_logger.warning("arv-mount %s: error %s", self.collection_locator, detail)
if self.collection_object is not None and "manifest_text" in self.collection_object:
_logger.warning("arv-mount manifest_text is: %s", self.collection_object["manifest_text"])
- except Exception as detail:
- _logger.error("arv-mount %s: error", self.collection_locator)
+ except Exception:
+ _logger.exception("arv-mount %s: error", self.collection_locator)
if self.collection_object is not None and "manifest_text" in self.collection_object:
_logger.error("arv-mount manifest_text is: %s", self.collection_object["manifest_text"])
- _logger.exception(detail)
return False
def __getitem__(self, item):
else:
return super(CollectionDirectory, self).__contains__(k)
- def mtime(self):
- self.checkupdate()
- return convertTime(self.collection_object["modified_at"]) if self.collection_object is not None and 'modified_at' in self.collection_object else 0
-
class MagicDirectory(Directory):
'''A special directory that logically contains the set of all extant keep
to readdir().
'''
- def __init__(self, parent_inode, inodes, api):
- super(MagicDirectory, self).__init__(parent_inode)
- self.inodes = inodes
- self.api = api
- # Have to defer creating readme_file because at this point we don't
- # yet have an inode assigned.
- self.readme_file = None
-
- def create_readme(self):
- if self.readme_file is None:
- text = '''This directory provides access to Arvados collections as subdirectories listed
+ README_TEXT = '''
+This directory provides access to Arvados collections as subdirectories listed
by uuid (in the form 'zzzzz-4zz18-1234567890abcde') or portable data hash (in
the form '1234567890abcdefghijklmnopqrstuv+123').
specific collection subdirectory (such as trying to 'cd' into it), at which
point the collection will actually be looked up on the server and the directory
will appear if it exists.
-'''
- self.readme_file = self.inodes.add_entry(StringFile(self.inode, text, time.time()))
- self._entries["README"] = self.readme_file
+'''.lstrip()
- def __contains__(self, k):
- self.create_readme()
+ def __init__(self, parent_inode, inodes, api, num_retries):
+ super(MagicDirectory, self).__init__(parent_inode)
+ self.inodes = inodes
+ self.api = api
+ self.num_retries = num_retries
+
+ def __setattr__(self, name, value):
+ super(MagicDirectory, self).__setattr__(name, value)
+ # When we're assigned an inode, add a README.
+ if ((name == 'inode') and (self.inode is not None) and
+ (not self._entries)):
+ self._entries['README'] = self.inodes.add_entry(
+ StringFile(self.inode, self.README_TEXT, time.time()))
+ # If we're the root directory, add an identical by_id subdirectory.
+ if self.inode == llfuse.ROOT_INODE:
+ self._entries['by_id'] = self.inodes.add_entry(MagicDirectory(
+ self.inode, self.inodes, self.api, self.num_retries))
+ def __contains__(self, k):
if k in self._entries:
return True
return False
try:
- e = self.inodes.add_entry(CollectionDirectory(self.inode, self.inodes, self.api, k))
+ e = self.inodes.add_entry(CollectionDirectory(
+ self.inode, self.inodes, self.api, self.num_retries, k))
if e.update():
self._entries[k] = e
return True
_logger.debug('arv-mount exception keep %s', e)
return False
- def items(self):
- self.create_readme()
- return self._entries.items()
-
def __getitem__(self, item):
if item in self:
return self._entries[item]
super(RecursiveInvalidateDirectory, self).invalidate()
for a in self._entries:
self._entries[a].invalidate()
- except Exception as e:
- _logger.exception(e)
+ except Exception:
+ _logger.exception()
finally:
if self.inode == llfuse.ROOT_INODE:
llfuse.lock.release()
class TagsDirectory(RecursiveInvalidateDirectory):
'''A special directory that contains as subdirectories all tags visible to the user.'''
- def __init__(self, parent_inode, inodes, api, poll_time=60):
+ def __init__(self, parent_inode, inodes, api, num_retries, poll_time=60):
super(TagsDirectory, self).__init__(parent_inode)
self.inodes = inodes
self.api = api
+ self.num_retries = num_retries
self._poll = True
self._poll_time = poll_time
def update(self):
with llfuse.lock_released:
- tags = self.api.links().list(filters=[['link_class', '=', 'tag']], select=['name'], distinct = True).execute()
+ tags = self.api.links().list(
+ filters=[['link_class', '=', 'tag']],
+ select=['name'], distinct=True
+ ).execute(num_retries=self.num_retries)
if "items" in tags:
self.merge(tags['items'],
- lambda i: i['name'] if 'name' in i else i['uuid'],
- lambda a, i: a.tag == i,
- lambda i: TagDirectory(self.inode, self.inodes, self.api, i['name'], poll=self._poll, poll_time=self._poll_time))
+ lambda i: i['name'],
+ lambda a, i: a.tag == i['name'],
+ lambda i: TagDirectory(self.inode, self.inodes, self.api, self.num_retries, i['name'], poll=self._poll, poll_time=self._poll_time))
class TagDirectory(Directory):
to the user that are tagged with a particular tag.
'''
- def __init__(self, parent_inode, inodes, api, tag, poll=False, poll_time=60):
+ def __init__(self, parent_inode, inodes, api, num_retries, tag,
+ poll=False, poll_time=60):
super(TagDirectory, self).__init__(parent_inode)
self.inodes = inodes
self.api = api
+ self.num_retries = num_retries
self.tag = tag
self._poll = poll
self._poll_time = poll_time
def update(self):
with llfuse.lock_released:
- taggedcollections = self.api.links().list(filters=[['link_class', '=', 'tag'],
- ['name', '=', self.tag],
- ['head_uuid', 'is_a', 'arvados#collection']],
- select=['head_uuid']).execute()
+ taggedcollections = self.api.links().list(
+ filters=[['link_class', '=', 'tag'],
+ ['name', '=', self.tag],
+ ['head_uuid', 'is_a', 'arvados#collection']],
+ select=['head_uuid']
+ ).execute(num_retries=self.num_retries)
self.merge(taggedcollections['items'],
lambda i: i['head_uuid'],
lambda a, i: a.collection_locator == i['head_uuid'],
- lambda i: CollectionDirectory(self.inode, self.inodes, self.api, i['head_uuid']))
+ lambda i: CollectionDirectory(self.inode, self.inodes, self.api, self.num_retries, i['head_uuid']))
class ProjectDirectory(Directory):
'''A special directory that contains the contents of a project.'''
- def __init__(self, parent_inode, inodes, api, project_object, poll=False, poll_time=60):
+ def __init__(self, parent_inode, inodes, api, num_retries, project_object,
+ poll=False, poll_time=60):
super(ProjectDirectory, self).__init__(parent_inode)
self.inodes = inodes
self.api = api
+ self.num_retries = num_retries
self.project_object = project_object
self.project_object_file = None
self.uuid = project_object['uuid']
+ self._poll = poll
+ self._poll_time = poll_time
def createDirectory(self, i):
if collection_uuid_pattern.match(i['uuid']):
- return CollectionDirectory(self.inode, self.inodes, self.api, i)
+ return CollectionDirectory(self.inode, self.inodes, self.api, self.num_retries, i)
elif group_uuid_pattern.match(i['uuid']):
- return ProjectDirectory(self.inode, self.inodes, self.api, i, self._poll, self._poll_time)
+ return ProjectDirectory(self.inode, self.inodes, self.api, self.num_retries, i, self._poll, self._poll_time)
elif link_uuid_pattern.match(i['uuid']):
if i['head_kind'] == 'arvados#collection' or portable_data_hash_pattern.match(i['head_uuid']):
- return CollectionDirectory(self.inode, self.inodes, self.api, i['head_uuid'])
+ return CollectionDirectory(self.inode, self.inodes, self.api, self.num_retries, i['head_uuid'])
else:
return None
elif uuid_pattern.match(i['uuid']):
with llfuse.lock_released:
if group_uuid_pattern.match(self.uuid):
- self.project_object = self.api.groups().get(uuid=self.uuid).execute()
+ self.project_object = self.api.groups().get(
+ uuid=self.uuid).execute(num_retries=self.num_retries)
elif user_uuid_pattern.match(self.uuid):
- self.project_object = self.api.users().get(uuid=self.uuid).execute()
+ self.project_object = self.api.users().get(
+ uuid=self.uuid).execute(num_retries=self.num_retries)
- contents = arvados.util.list_all(self.api.groups().contents, uuid=self.uuid)
+ contents = arvados.util.list_all(self.api.groups().contents,
+ self.num_retries, uuid=self.uuid)
# Name links will be obsolete soon, take this out when there are no more pre-#3036 in use.
- contents += arvados.util.list_all(self.api.links().list, filters=[['tail_uuid', '=', self.uuid], ['link_class', '=', 'name']])
+ contents += arvados.util.list_all(
+ self.api.links().list, self.num_retries,
+ filters=[['tail_uuid', '=', self.uuid],
+ ['link_class', '=', 'name']])
# end with llfuse.lock_released, re-acquire lock
class SharedDirectory(Directory):
'''A special directory that represents users or groups who have shared projects with me.'''
- def __init__(self, parent_inode, inodes, api, exclude, poll=False, poll_time=60):
+ def __init__(self, parent_inode, inodes, api, num_retries, exclude,
+ poll=False, poll_time=60):
super(SharedDirectory, self).__init__(parent_inode)
- self.current_user = api.users().current().execute()
self.inodes = inodes
self.api = api
+ self.num_retries = num_retries
+ self.current_user = api.users().current().execute(num_retries=num_retries)
self._poll = True
self._poll_time = poll_time
def update(self):
with llfuse.lock_released:
- all_projects = arvados.util.list_all(self.api.groups().list, filters=[['group_class','=','project']])
+ all_projects = arvados.util.list_all(
+ self.api.groups().list, self.num_retries,
+ filters=[['group_class','=','project']])
objects = {}
for ob in all_projects:
objects[ob['uuid']] = ob
roots.append(ob)
root_owners[ob['owner_uuid']] = True
- lusers = arvados.util.list_all(self.api.users().list, filters=[['uuid','in', list(root_owners)]])
- lgroups = arvados.util.list_all(self.api.groups().list, filters=[['uuid','in', list(root_owners)]])
+ lusers = arvados.util.list_all(
+ self.api.users().list, self.num_retries,
+ filters=[['uuid','in', list(root_owners)]])
+ lgroups = arvados.util.list_all(
+ self.api.groups().list, self.num_retries,
+ filters=[['uuid','in', list(root_owners)]])
users = {}
groups = {}
self.merge(contents.items(),
lambda i: i[0],
lambda a, i: a.uuid == i[1]['uuid'],
- lambda i: ProjectDirectory(self.inode, self.inodes, self.api, i[1], poll=self._poll, poll_time=self._poll_time))
- except Exception as e:
- _logger.exception(e)
+ lambda i: ProjectDirectory(self.inode, self.inodes, self.api, self.num_retries, i[1], poll=self._poll, poll_time=self._poll_time))
+ except Exception:
+ _logger.exception()
class FileHandle(object):
def __init__(self):
self._entries = {}
- self._counter = llfuse.ROOT_INODE
+ self._counter = itertools.count(llfuse.ROOT_INODE)
def __getitem__(self, item):
return self._entries[item]
return k in self._entries
def add_entry(self, entry):
- entry.inode = self._counter
+ entry.inode = next(self._counter)
self._entries[entry.inode] = entry
- self._counter += 1
return entry
def del_entry(self, entry):
so request handlers do not run concurrently unless the lock is explicitly released
using "with llfuse.lock_released:"'''
- def __init__(self, uid, gid):
+ def __init__(self, uid, gid, encoding="utf-8"):
super(Operations, self).__init__()
self.inodes = Inodes()
self.uid = uid
self.gid = gid
+ self.encoding = encoding
# dict of inode to filehandle
self._filehandles = {}
entry.st_mode = stat.S_IRUSR | stat.S_IRGRP | stat.S_IROTH
if isinstance(e, Directory):
entry.st_mode |= stat.S_IXUSR | stat.S_IXGRP | stat.S_IXOTH | stat.S_IFDIR
+ elif isinstance(e, StreamReaderFile):
+ entry.st_mode |= stat.S_IXUSR | stat.S_IXGRP | stat.S_IXOTH | stat.S_IFREG
else:
entry.st_mode |= stat.S_IFREG
return entry
def lookup(self, parent_inode, name):
+ name = unicode(name, self.encoding)
_logger.debug("arv-mount lookup: parent_inode %i name %s",
parent_inode, name)
inode = None
except arvados.errors.NotFoundError as e:
_logger.warning("Block not found: " + str(e))
raise llfuse.FUSEError(errno.EIO)
- except Exception as e:
- _logger.exception(e)
+ except Exception:
+ _logger.exception()
raise llfuse.FUSEError(errno.EIO)
def release(self, fh):
e = off
while e < len(handle.entry):
if handle.entry[e][1].inode in self.inodes:
- yield (handle.entry[e][0], self.getattr(handle.entry[e][1].inode), e+1)
+ try:
+ yield (handle.entry[e][0].encode(self.encoding), self.getattr(handle.entry[e][1].inode), e+1)
+ except UnicodeEncodeError:
+ pass
e += 1
def releasedir(self, fh):
# arv-mount.
# The workaround is to implement it with the proper number of parameters,
# and then everything works out.
- def create(self, p1, p2, p3, p4, p5):
+ def create(self, inode_parent, name, mode, flags, ctx):
raise llfuse.FUSEError(errno.EROFS)
projects / arvados.git / blobdiff