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)
sql = '''create table if not exists versions (
version_id integer primary key,
name text,
+ user text,
tstamp datetime default current_timestamp,
size integer default 0,
hide integer default 0)'''
sql = '''create table if not exists hashmaps (
version_id integer, pos integer, block_id text, primary key (version_id, pos))'''
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 policy (
+ name text, key text, value text, primary key (name, key))'''
+ 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."""
logger.debug("update_account_meta: %s %s %s", account, meta, replace)
if user != account:
raise NotAllowedError
- self._put_metadata(account, meta, replace)
+ 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
- try:
- path, version_id, mtime = self._get_containerinfo(account, container)
- except NameError:
- path = os.path.join(account, container)
- version_id = self._put_version(path)
- else:
- raise NameError('Container already exists')
+ 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 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)
+ count, bytes, tstamp = self._get_pathstats(account)
if count > 0:
- raise IndexError('Container is not empty')
- self._del_path(path) # Point of no return.
- self._copy_version(account, account, True, True) # New account version.
+ raise IndexError('Account is not empty')
+ self._del_path(account) # Point of no return.
+
+ 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."""
if user != account:
raise NotAllowedError
path, version_id, mtime = self._get_containerinfo(account, container)
- self._put_metadata(path, meta, replace)
+ 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):
+ """Delete the container with the given name."""
+
+ logger.debug("delete_container: %s %s", account, container)
+ 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.
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."""
logger.debug("get_object_meta: %s %s %s %s", account, container, name, version)
self._can_read(user, account, container, name)
- path, version_id, mtime, size = self._get_objectinfo(account, container, name, version)
+ path, version_id, muser, mtime, size = self._get_objectinfo(account, container, name, version)
if version is None:
modified = mtime
else:
- modified = self._get_version(path, version)[1] # Overall last modification
+ modified = self._get_version(path, version)[2] # Overall last modification
meta = self._get_metadata(path, version_id)
- meta.update({'name': name, 'bytes': size, 'version': version_id, 'version_timestamp': mtime, 'modified': modified})
+ meta.update({'name': name, 'bytes': size})
+ meta.update({'version': version_id, 'version_timestamp': mtime})
+ meta.update({'modified': modified, 'modified_by': muser})
return meta
def update_object_meta(self, user, account, container, name, meta, replace=False):
logger.debug("update_object_meta: %s %s %s %s %s", account, container, name, meta, replace)
self._can_write(user, account, container, name)
- path, version_id, mtime, size = self._get_objectinfo(account, container, name)
- self._put_metadata(path, meta, replace)
+ path, version_id, muser, mtime, size = self._get_objectinfo(account, container, name)
+ self._put_metadata(user, path, meta, replace)
def get_object_permissions(self, user, account, container, name):
"""Return the path from which this object gets its permissions from,\
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."""
logger.debug("get_object_hashmap: %s %s %s %s", account, container, name, version)
self._can_read(user, account, container, name)
- path, version_id, mtime, size = self._get_objectinfo(account, container, name, version)
+ path, version_id, muser, mtime, size = self._get_objectinfo(account, container, name, version)
sql = 'select block_id from hashmaps where version_id = ? order by pos asc'
c = self.con.execute(sql, (version_id,))
hashmap = [x[0] for x in c.fetchall()]
if permissions is not None and user != account:
raise NotAllowedError
self._can_write(user, account, container, name)
+ missing = []
+ for i in range(len(hashmap)):
+ sql = 'select count(*) from blocks where block_id = ?'
+ c = self.con.execute(sql, (hashmap[i],))
+ if c.fetchone()[0] == 0:
+ missing.append(hashmap[i])
+ if missing:
+ ie = IndexError()
+ ie.data = missing
+ raise ie
path = self._get_containerinfo(account, container)[0]
path = os.path.join(path, name)
if permissions is not None:
r, w = self._check_permissions(path, permissions)
- src_version_id, dest_version_id = self._copy_version(path, path, not replace_meta, False)
+ src_version_id, dest_version_id = self._copy_version(user, path, path, not replace_meta, False)
sql = 'update versions set size = ? where version_id = ?'
self.con.execute(sql, (size, dest_version_id))
# TODO: Check for block_id existence.
dest_path = os.path.join(dest_path, dest_name)
if permissions is not None:
r, w = self._check_permissions(dest_path, permissions)
- src_version_id, dest_version_id = self._copy_version(src_path, dest_path, not replace_meta, True, src_version)
+ src_version_id, dest_version_id = self._copy_version(user, src_path, dest_path, not replace_meta, True, src_version)
for k, v in dest_meta.iteritems():
sql = 'insert or replace into metadata (version_id, key, value) values (?, ?, ?)'
self.con.execute(sql, (dest_version_id, k, v))
logger.debug("delete_object: %s %s %s", account, container, name)
if user != account:
raise NotAllowedError
- path, version_id, mtime, size = self._get_objectinfo(account, container, name)
- self._put_version(path, 0, 1)
+ 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,))
self.con.commit()
def _get_version(self, path, version=None):
if version is None:
- sql = '''select version_id, strftime('%s', tstamp), size, hide from versions where name = ?
+ sql = '''select version_id, user, strftime('%s', tstamp), size, 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 int(row[3]):
+ if not row or int(row[4]):
raise NameError('Object does not exist')
else:
- sql = '''select version_id, strftime('%s', tstamp), size from versions where name = ?
+ # The database (sqlite) will not complain if the version is not an integer.
+ sql = '''select version_id, user, strftime('%s', tstamp), size from versions where name = ?
and version_id = ?'''
c = self.con.execute(sql, (path, version))
row = c.fetchone()
if not row:
raise IndexError('Version does not exist')
- return str(row[0]), int(row[1]), int(row[2])
+ return str(row[0]), str(row[1]), int(row[2]), int(row[3])
- def _put_version(self, path, size=0, hide=0):
- sql = 'insert into versions (name, size, hide) values (?, ?, ?)'
- id = self.con.execute(sql, (path, size, hide)).lastrowid
+ 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
self.con.commit()
return str(id)
- def _copy_version(self, src_path, dest_path, copy_meta=True, copy_data=True, src_version=None):
+ def _copy_version(self, user, src_path, dest_path, copy_meta=True, copy_data=True, src_version=None):
if src_version is not None:
- src_version_id, mtime, size = self._get_version(src_path, src_version)
+ src_version_id, muser, mtime, size = self._get_version(src_path, src_version)
else:
# Latest or create from scratch.
try:
- src_version_id, mtime, size = self._get_version(src_path)
+ src_version_id, muser, mtime, size = self._get_version(src_path)
except NameError:
src_version_id = None
size = 0
if not copy_data:
size = 0
- dest_version_id = self._put_version(dest_path, size)
+ dest_version_id = self._put_version(dest_path, user, size)
if copy_meta and src_version_id is not None:
sql = 'insert into metadata select %s, key, value from metadata where version_id = ?'
sql = sql % dest_version_id
def _get_objectinfo(self, account, container, name, version=None):
path = os.path.join(account, container, name)
- version_id, mtime, size = self._get_version(path, version)
- return path, version_id, mtime, size
+ version_id, muser, mtime, size = self._get_version(path, version)
+ return path, version_id, muser, mtime, size
def _get_metadata(self, path, version):
sql = 'select key, value from metadata where version_id = ?'
c = self.con.execute(sql, (version,))
return dict(c.fetchall())
- def _put_metadata(self, path, meta, replace=False):
+ def _put_metadata(self, user, path, meta, replace=False):
"""Create a new version and store metadata."""
- src_version_id, dest_version_id = self._copy_version(path, path, not replace, True)
+ src_version_id, dest_version_id = self._copy_version(user, path, path, not replace, True)
for k, v in meta.iteritems():
if not replace and v == '':
sql = 'delete from metadata where version_id = ? and key = ?'
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, []):
+ if ':' in y:
+ g_account, g_name = y.split(':', 1)
+ groups = self._get_groups(g_account)
+ if g_name in groups:
+ g_perms += groups[g_name]
+ else:
+ 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', []):
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 _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:
projects / pithos / blobdiff