self.hash_algorithm = 'sha1'
self.block_size = 128 * 1024 # 128KB
+ self.default_policy = {'quota': 0, 'versioning': 'auto'}
+
basepath = os.path.split(db)[0]
if basepath and not os.path.exists(basepath):
os.makedirs(basepath)
self.con = sqlite3.connect(db, check_same_thread=False)
+
+ sql = '''pragma foreign_keys = on'''
+ self.con.execute(sql)
+
sql = '''create table if not exists versions (
version_id integer primary key,
name text,
hide integer default 0)'''
self.con.execute(sql)
sql = '''create table if not exists metadata (
- version_id integer, key text, value text, primary key (version_id, key))'''
+ version_id integer,
+ key text,
+ value text,
+ primary key (version_id, key)
+ foreign key (version_id) references versions(version_id)
+ on delete cascade)'''
+ self.con.execute(sql)
+ sql = '''create table if not exists hashmaps (
+ version_id integer,
+ pos integer,
+ block_id text,
+ primary key (version_id, pos)
+ foreign key (version_id) references versions(version_id)
+ on delete cascade)'''
self.con.execute(sql)
sql = '''create table if not exists blocks (
block_id text, data blob, primary key (block_id))'''
self.con.execute(sql)
- sql = '''create table if not exists hashmaps (
- version_id integer, pos integer, block_id text, primary key (version_id, pos))'''
+
+ sql = '''create table if not exists policy (
+ name text, key text, value text, primary key (name, key))'''
+ self.con.execute(sql)
+
+ sql = '''create table if not exists groups (
+ account text, name text, users text, primary key (account, name))'''
self.con.execute(sql)
sql = '''create table if not exists permissions (
name text, read text, write text, primary key (name))'''
self.con.execute(sql)
+ sql = '''create table if not exists public (
+ name text, primary key (name))'''
+ self.con.execute(sql)
self.con.commit()
- def delete_account(self, user, account):
- """Delete the account with the given name."""
-
- logger.debug("delete_account: %s", account)
- if user != account:
- raise NotAllowedError
- count, bytes, tstamp = self._get_pathstats(account)
- if count > 0:
- raise IndexError('Account is not empty')
- self._del_path(account) # Point of no return.
-
def get_account_meta(self, user, account, until=None):
"""Return a dictionary with the account metadata."""
raise NotAllowedError
self._put_metadata(user, account, meta, replace)
- def list_containers(self, user, account, marker=None, limit=10000, until=None):
- """Return a list of containers existing under an account."""
+ def get_account_groups(self, user, account):
+ """Return a dictionary with the user groups defined for this account."""
- logger.debug("list_containers: %s %s %s %s", account, marker, limit, until)
+ logger.debug("get_account_groups: %s", account)
if user != account:
raise NotAllowedError
- return self._list_objects(account, '', '/', marker, limit, False, [], until)
+ return self._get_groups(account)
- def put_container(self, user, account, container):
- """Create a new container with the given name."""
+ def update_account_groups(self, user, account, groups, replace=False):
+ """Update the groups associated with the account."""
- logger.debug("put_container: %s %s", account, container)
+ logger.debug("update_account_groups: %s %s %s", account, groups, replace)
+ if user != account:
+ raise NotAllowedError
+ for k, v in groups.iteritems():
+ if True in [False or ',' in x for x in v]:
+ raise ValueError('Bad characters in groups')
+ if replace:
+ sql = 'delete from groups where account = ?'
+ self.con.execute(sql, (account,))
+ for k, v in groups.iteritems():
+ if len(v) == 0:
+ if not replace:
+ sql = 'delete from groups where account = ? and name = ?'
+ self.con.execute(sql, (account, k))
+ else:
+ sql = 'insert or replace into groups (account, name, users) values (?, ?, ?)'
+ self.con.execute(sql, (account, k, ','.join(v)))
+ self.con.commit()
+
+ def put_account(self, user, account):
+ """Create a new account with the given name."""
+
+ logger.debug("put_account: %s", account)
if user != account:
raise NotAllowedError
try:
- path, version_id, mtime = self._get_containerinfo(account, container)
+ version_id, mtime = self._get_accountinfo(account)
except NameError:
- path = os.path.join(account, container)
- version_id = self._put_version(path, user)
+ pass
else:
- raise NameError('Container already exists')
+ raise NameError('Account already exists')
+ version_id = self._put_version(account, user)
+ self.con.commit()
- def delete_container(self, user, account, container):
- """Delete the container with the given name."""
+ def delete_account(self, user, account):
+ """Delete the account with the given name."""
- logger.debug("delete_container: %s %s", account, container)
+ logger.debug("delete_account: %s", account)
if user != account:
raise NotAllowedError
- path, version_id, mtime = self._get_containerinfo(account, container)
- count, bytes, tstamp = self._get_pathstats(path)
- if count > 0:
- raise IndexError('Container is not empty')
- self._del_path(path) # Point of no return.
- self._copy_version(user, account, account, True, True) # New account version.
+ if self._get_pathcount(account) > 0:
+ raise IndexError('Account is not empty')
+ sql = 'delete from versions where name = ?'
+ self.con.execute(sql, (path,))
+ sql = 'delete from groups where name = ?'
+ self.con.execute(sql, (account,))
+ self.con.commit()
+
+ def list_containers(self, user, account, marker=None, limit=10000, until=None):
+ """Return a list of containers existing under an account."""
+
+ logger.debug("list_containers: %s %s %s %s", account, marker, limit, until)
+ if user != account:
+ raise NotAllowedError
+ return self._list_objects(account, '', '/', marker, limit, False, [], until)
def get_container_meta(self, user, account, container, until=None):
"""Return a dictionary with the container metadata."""
path, version_id, mtime = self._get_containerinfo(account, container)
self._put_metadata(user, path, meta, replace)
+ def get_container_policy(self, user, account, container):
+ """Return a dictionary with the container policy."""
+
+ logger.debug("get_container_policy: %s %s", account, container)
+ if user != account:
+ raise NotAllowedError
+ path = self._get_containerinfo(account, container)[0]
+ return self._get_policy(path)
+
+ def update_container_policy(self, user, account, container, policy, replace=False):
+ """Update the policy associated with the account."""
+
+ logger.debug("update_container_policy: %s %s %s %s", account, container, policy, replace)
+ if user != account:
+ raise NotAllowedError
+ path = self._get_containerinfo(account, container)[0]
+ self._check_policy(policy)
+ if replace:
+ for k, v in self.default_policy.iteritems():
+ if k not in policy:
+ policy[k] = v
+ for k, v in policy.iteritems():
+ sql = 'insert or replace into policy (name, key, value) values (?, ?, ?)'
+ self.con.execute(sql, (path, k, v))
+ self.con.commit()
+
+ def put_container(self, user, account, container, policy=None):
+ """Create a new container with the given name."""
+
+ logger.debug("put_container: %s %s %s", account, container, policy)
+ if user != account:
+ raise NotAllowedError
+ try:
+ path, version_id, mtime = self._get_containerinfo(account, container)
+ except NameError:
+ pass
+ else:
+ raise NameError('Container already exists')
+ if policy:
+ self._check_policy(policy)
+ path = os.path.join(account, container)
+ version_id = self._put_version(path, user)
+ for k, v in self.default_policy.iteritems():
+ if k not in policy:
+ policy[k] = v
+ for k, v in policy.iteritems():
+ sql = 'insert or replace into policy (name, key, value) values (?, ?, ?)'
+ self.con.execute(sql, (path, k, v))
+ self.con.commit()
+
+ def delete_container(self, user, account, container, until=None):
+ """Delete the container with the given name."""
+
+ logger.debug("delete_container: %s %s %s", account, container, until)
+ if user != account:
+ raise NotAllowedError
+ path, version_id, mtime = self._get_containerinfo(account, container)
+
+ if until is not None:
+ sql = '''select version_id from versions where name like ? and tstamp <= datetime(%s, 'unixepoch')'''
+ c = self.con.execute(sql, (path + '/%', until))
+ versions = [x[0] for x in c.fetchall()]
+ for v in versions:
+ sql = 'delete from hashmaps where version_id = ?'
+ self.con.execute(sql, (v,))
+ sql = 'delete from versions where version_id = ?'
+ self.con.execute(sql, (v,))
+ self.con.commit()
+ return
+
+ if self._get_pathcount(path) > 0:
+ raise IndexError('Container is not empty')
+ sql = 'delete from versions where name = ?'
+ self.con.execute(sql, (path,))
+ sql = 'delete from policy where name = ?'
+ self.con.execute(sql, (path,))
+ self._copy_version(user, account, account, True, True) # New account version (for timestamp update).
+
def list_objects(self, user, account, container, prefix='', delimiter=None, marker=None, limit=10000, virtual=True, keys=[], until=None):
"""Return a list of objects existing under a container."""
r, w = self._check_permissions(path, permissions)
self._put_permissions(path, r, w)
+ def get_object_public(self, user, account, container, name):
+ """Return the public URL of the object if applicable."""
+
+ logger.debug("get_object_public: %s %s %s", account, container, name)
+ self._can_read(user, account, container, name)
+ path = self._get_objectinfo(account, container, name)[0]
+ if self._get_public(path):
+ return '/public/' + path
+ return None
+
+ def update_object_public(self, user, account, container, name, public):
+ """Update the public status of the object."""
+
+ logger.debug("update_object_public: %s %s %s %s", account, container, name, public)
+ self._can_write(user, account, container, name)
+ path = self._get_objectinfo(account, container, name)[0]
+ self._put_public(path, public)
+
def get_object_hashmap(self, user, account, container, name, version=None):
"""Return the object's size and a list with partial hashes."""
self.copy_object(user, account, src_container, src_name, dest_container, dest_name, dest_meta, replace_meta, permissions, None)
self.delete_object(user, account, src_container, src_name)
- def delete_object(self, user, account, container, name):
+ def delete_object(self, user, account, container, name, until=None):
"""Delete an object."""
- logger.debug("delete_object: %s %s %s", account, container, name)
+ logger.debug("delete_object: %s %s %s %s", account, container, name, until)
if user != account:
raise NotAllowedError
- path = self._get_objectinfo(account, container, name)[0]
- self._put_version(path, user, 0, 1)
- sql = 'delete from permissions where name = ?'
- self.con.execute(sql, (path,))
+ if until is None:
+ path = self._get_objectinfo(account, container, name)[0]
+ sql = 'select version_id from versions where name = ?'
+ c = self.con.execute(sql, (path,))
+ else:
+ path = os.path.join(account, container, name)
+ sql = '''select version_id from versions where name = ? and tstamp <= datetime(%s, 'unixepoch')'''
+ c = self.con.execute(sql, (path, until))
+ versions = [x[0] for x in c.fetchall()]
+ for v in versions:
+ sql = 'delete from hashmaps where version_id = ?'
+ self.con.execute(sql, (v,))
+ sql = 'delete from versions where version_id = ?'
+ self.con.execute(sql, (v,))
+
+ # If no more versions exist, delete permissions/public.
+ sql = 'select version_id from versions where name = ?'
+ row = self.con.execute(sql, (path,)).fetchone()
+ if row is None:
+ self._del_sharing(path)
self.con.commit()
+ def update_object_trash(self, user, account, container, name, trash=True):
+ """Trash/untrash an object."""
+
+ logger.debug("trash_object: %s %s %s", account, container, name)
+ if user != account:
+ raise NotAllowedError
+ if trash:
+ path, version_id, muser, mtime, size = self._get_objectinfo(account, container, name)
+ self._del_sharing(path)
+ else:
+ path = os.path.join(account, container, name)
+ sql = '''select version_id, hide from versions where name = ?
+ order by version_id desc limit 1'''
+ c = self.con.execute(sql, (path,))
+ row = c.fetchone()
+ if not row or not int(row[1]):
+ raise NameError('Object not in trash')
+ version_id = row[0]
+ hide = 1 if trash else 0
+ sql = 'update versions set hide = ? where version_id = ?'
+ self.con.execute(sql, (hide, version_id,))
+ seld.con.commit()
+
def list_versions(self, user, account, container, name):
"""Return a list of all (version, version_timestamp) tuples for an object."""
self._can_read(user, account, container, name)
# This will even show deleted versions.
path = os.path.join(account, container, name)
- sql = '''select distinct version_id, strftime('%s', tstamp) from versions where name = ? and hide = 0'''
+ sql = '''select distinct version_id, strftime('%s', tstamp) from versions where name = ?'''
c = self.con.execute(sql, (path,))
return [(int(x[0]), int(x[1])) for x in c.fetchall()]
return sql % ('%s', until)
def _get_pathstats(self, path, until=None):
- """Return count and sum of size of everything under path and latest timestamp."""
+ """Return count, sum of size and latest timestamp of everything under path (latest versions/no trash)."""
sql = 'select count(version_id), total(size), max(tstamp) from (%s) where name like ?'
sql = sql % self._sql_until(until)
tstamp = row[2] if row[2] is not None else 0
return int(row[0]), int(row[1]), int(tstamp)
+ def _get_pathcount(self, path):
+ """Return count of everything under path (including versions/trash)."""
+
+ sql = 'select count(version_id) from versions where name like ?'
+ c = self.con.execute(sql, (path + '/%',))
+ row = c.fetchone()
+ return int(row[0])
+
def _get_version(self, path, version=None):
if version is None:
sql = '''select version_id, user, strftime('%s', tstamp), size, hide from versions where name = ?
raise IndexError('Version does not exist')
return str(row[0]), str(row[1]), int(row[2]), int(row[3])
- def _put_version(self, path, user, size=0, hide=0):
- sql = 'insert into versions (name, user, size, hide) values (?, ?, ?, ?)'
- id = self.con.execute(sql, (path, user, size, hide)).lastrowid
+ def _put_version(self, path, user, size=0):
+ sql = 'insert into versions (name, user, size) values (?, ?, ?)'
+ id = self.con.execute(sql, (path, user, size)).lastrowid
self.con.commit()
return str(id)
self.con.execute(sql, (dest_version_id, k, v))
self.con.commit()
+ def _get_groups(self, account):
+ sql = 'select name, users from groups where account = ?'
+ c = self.con.execute(sql, (account,))
+ return dict([(x[0], x[1].split(',')) for x in c.fetchall()])
+
+ def _check_policy(self, policy):
+ for k in policy.keys():
+ if policy[k] == '':
+ policy[k] = self.default_policy.get(k)
+ for k, v in policy.iteritems():
+ if k == 'quota':
+ q = int(v) # May raise ValueError.
+ if q < 0:
+ raise ValueError
+ elif k == 'versioning':
+ if v not in ['auto', 'manual', 'none']:
+ raise ValueError
+ else:
+ raise ValueError
+
+ def _get_policy(self, path):
+ sql = 'select key, value from policy where name = ?'
+ c = self.con.execute(sql, (path,))
+ return dict(c.fetchall())
+
def _is_allowed(self, user, account, container, name, op='read'):
if user == account:
return True
path = os.path.join(account, container, name)
+ if op == 'read' and self._get_public(path):
+ return True
perm_path, perms = self._get_permissions(path)
+
+ # Expand groups.
+ for x in ('read', 'write'):
+ g_perms = []
+ for y in perms.get(x, []):
+ groups = self._get_groups(account)
+ if y in groups: #it's a group
+ for g_name in groups[y]:
+ g_perms.append(g_name)
+ else: #it's a user
+ g_perms.append(y)
+ perms[x] = g_perms
+
if op == 'read' and user in perms.get('read', []):
return True
if user in perms.get('write', []):
sql = '''select name from permissions
where name != ? and (name like ? or ? like name || ?)'''
c = self.con.execute(sql, (path, path + '%', path, '%'))
- rows = c.fetchall()
- if rows:
- raise AttributeError('Permissions already set')
+ row = c.fetchone()
+ if row:
+ ae = AttributeError()
+ ae.data = row[0]
+ raise ae
# Format given permissions.
if len(permissions) == 0:
self.con.execute(sql, (path, r, w))
self.con.commit()
+ def _get_public(self, path):
+ sql = 'select name from public where name = ?'
+ c = self.con.execute(sql, (path,))
+ row = c.fetchone()
+ if not row:
+ return False
+ return True
+
+ def _put_public(self, path, public):
+ if not public:
+ sql = 'delete from public where name = ?'
+ else:
+ sql = 'insert or replace into public (name) values (?)'
+ self.con.execute(sql, (path,))
+ self.con.commit()
+
+ def _del_sharing(self, path):
+ sql = 'delete from permissions where name = ?'
+ self.con.execute(sql, (path,))
+ sql = 'delete from public where name = ?'
+ self.con.execute(sql, (path,))
+ self.con.commit()
+
def _list_objects(self, path, prefix='', delimiter=None, marker=None, limit=10000, virtual=True, keys=[], until=None):
cont_prefix = path + '/'
if keys and len(keys) > 0:
if not limit or limit > 10000:
limit = 10000
return objects[start:start + limit]
-
- def _del_path(self, path):
- sql = '''delete from hashmaps where version_id in
- (select version_id from versions where name = ?)'''
- self.con.execute(sql, (path,))
- sql = '''delete from metadata where version_id in
- (select version_id from versions where name = ?)'''
- self.con.execute(sql, (path,))
- sql = '''delete from versions where name = ?'''
- self.con.execute(sql, (path,))
- sql = '''delete from permissions where name like ?'''
- self.con.execute(sql, (path + '%',)) # Redundant.
- self.con.commit()
projects / pithos / blobdiff