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# This file is part of Buildbot. Buildbot is free software: you can
# redistribute it and/or modify it under the terms of the GNU General Public
# License as published by the Free Software Foundation, version 2.
#
# This program is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
# details.
#
# You should have received a copy of the GNU General Public License along with
# this program; if not, write to the Free Software Foundation, Inc., 51
# Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
#
# Copyright Buildbot Team Members
import sqlalchemy as sa
from sqlalchemy.sql.expression import and_
from buildbot.db import base
class UsDict(dict):
pass
class UsersConnectorComponent(base.DBConnectorComponent):
# Documentation is in developer/database.rst
def findUserByAttr(self, identifier, attr_type, attr_data, _race_hook=None):
def thd(conn, no_recurse=False):
tbl = self.db.model.users
tbl_info = self.db.model.users_info
self.check_length(tbl.c.identifier, identifier)
self.check_length(tbl_info.c.attr_type, attr_type)
self.check_length(tbl_info.c.attr_data, attr_data)
# try to find the user
q = sa.select([ tbl_info.c.uid ],
whereclause=and_(tbl_info.c.attr_type == attr_type,
tbl_info.c.attr_data == attr_data))
rows = conn.execute(q).fetchall()
if rows:
return rows[0].uid
_race_hook and _race_hook(conn)
# try to do both of these inserts in a transaction, so that both
# the new user and the corresponding attributes appear at the same
# time from the perspective of other masters.
transaction = conn.begin()
try:
r = conn.execute(tbl.insert(), dict(identifier=identifier))
uid = r.inserted_primary_key[0]
conn.execute(tbl_info.insert(),
dict(uid=uid, attr_type=attr_type,
attr_data=attr_data))
transaction.commit()
except (sa.exc.IntegrityError, sa.exc.ProgrammingError):
transaction.rollback()
# try it all over again, in case there was an overlapping,
# identical call to findUserByAttr, but only retry once.
if no_recurse:
raise
return thd(conn, no_recurse=True)
return uid
d = self.db.pool.do(thd)
return d
@base.cached("usdicts")
def getUser(self, uid):
def thd(conn):
tbl = self.db.model.users
tbl_info = self.db.model.users_info
q = tbl.select(whereclause=(tbl.c.uid == uid))
users_row = conn.execute(q).fetchone()
if not users_row:
return None
# make UsDict to return
usdict = UsDict()
# gather all attr_type and attr_data entries from users_info table
q = tbl_info.select(whereclause=(tbl_info.c.uid == uid))
rows = conn.execute(q).fetchall()
for row in rows:
usdict[row.attr_type] = row.attr_data
# add the users_row data *after* the attributes in case attr_type
# matches one of these keys.
usdict['uid'] = users_row.uid
usdict['identifier'] = users_row.identifier
usdict['bb_username'] = users_row.bb_username
usdict['bb_password'] = users_row.bb_password
return usdict
d = self.db.pool.do(thd)
return d
def getUserByUsername(self, username):
def thd(conn):
tbl = self.db.model.users
tbl_info = self.db.model.users_info
q = tbl.select(whereclause=(tbl.c.bb_username == username))
users_row = conn.execute(q).fetchone()
if not users_row:
return None
# make UsDict to return
usdict = UsDict()
# gather all attr_type and attr_data entries from users_info table
q = tbl_info.select(whereclause=(tbl_info.c.uid == users_row.uid))
rows = conn.execute(q).fetchall()
for row in rows:
usdict[row.attr_type] = row.attr_data
# add the users_row data *after* the attributes in case attr_type
# matches one of these keys.
usdict['uid'] = users_row.uid
usdict['identifier'] = users_row.identifier
usdict['bb_username'] = users_row.bb_username
usdict['bb_password'] = users_row.bb_password
return usdict
d = self.db.pool.do(thd)
return d
def getUsers(self):
def thd(conn):
tbl = self.db.model.users
rows = conn.execute(tbl.select()).fetchall()
dicts = []
if rows:
for row in rows:
ud = dict(uid=row.uid, identifier=row.identifier)
dicts.append(ud)
return dicts
d = self.db.pool.do(thd)
return d
def updateUser(self, uid=None, identifier=None, bb_username=None,
bb_password=None, attr_type=None, attr_data=None,
_race_hook=None):
def thd(conn):
transaction = conn.begin()
tbl = self.db.model.users
tbl_info = self.db.model.users_info
update_dict = {}
# first, add the identifier is it exists
if identifier is not None:
self.check_length(tbl.c.identifier, identifier)
update_dict['identifier'] = identifier
# then, add the creds if they exist
if bb_username is not None:
assert bb_password is not None
self.check_length(tbl.c.bb_username, bb_username)
self.check_length(tbl.c.bb_password, bb_password)
update_dict['bb_username'] = bb_username
update_dict['bb_password'] = bb_password
# update the users table if it needs to be updated
if update_dict:
q = tbl.update(whereclause=(tbl.c.uid == uid))
res = conn.execute(q, update_dict)
# then, update the attributes, carefully handling the potential
# update-or-insert race condition.
if attr_type is not None:
assert attr_data is not None
self.check_length(tbl_info.c.attr_type, attr_type)
self.check_length(tbl_info.c.attr_data, attr_data)
# first update, then insert
q = tbl_info.update(
whereclause=(tbl_info.c.uid == uid)
& (tbl_info.c.attr_type == attr_type))
res = conn.execute(q, attr_data=attr_data)
if res.rowcount == 0:
_race_hook and _race_hook(conn)
# the update hit 0 rows, so try inserting a new one
try:
q = tbl_info.insert()
res = conn.execute(q,
uid=uid,
attr_type=attr_type,
attr_data=attr_data)
except (sa.exc.IntegrityError, sa.exc.ProgrammingError):
# someone else beat us to the punch inserting this row;
# let them win.
transaction.rollback()
return
transaction.commit()
d = self.db.pool.do(thd)
return d
def removeUser(self, uid):
def thd(conn):
# delete from dependent tables first, followed by 'users'
for tbl in [
self.db.model.change_users,
self.db.model.users_info,
self.db.model.users,
]:
conn.execute(tbl.delete(whereclause=(tbl.c.uid==uid)))
d = self.db.pool.do(thd)
return d
def identifierToUid(self, identifier):
def thd(conn):
tbl = self.db.model.users
q = tbl.select(whereclause=(tbl.c.identifier == identifier))
row = conn.execute(q).fetchone()
if not row:
return None
return row.uid
d = self.db.pool.do(thd)
return d
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