def _manage(self):
while True:
command = self.connection.recv()
if command == self.sentinel:
break
if isinstance(command, (list, tuple)):
command, params = command
if command == "DB_LOCK":
self.lock_db()
elif command == "DB_UNLOCK":
self.unlock_db()
elif command == "DB_OPEN":
self.add_runtime_service("db")
elif command == "DB_CLOSE":
self.remove_runtime_service("db")
elif command == "NEW_MASTER":
from porcupine.db import _db
_db.get_replication_manager().master = params
elif command == "RELOAD_PACKAGE":
try:
mod = sys.modules[params]
misc.reload_module_tree(mod)
except KeyError:
pass
elif command == "RELOAD_MODULE":
try:
mod = sys.modules[params]
misc.reload_module(mod)
except KeyError:
pass
elif command == "ADD_PUBDIR":
from porcupine.config import pubdirs
dir_name, dir = params
pubdirs.dirs[dir_name] = dir
elif command == "REMOVE_PUBDIR":
from porcupine.config import pubdirs
try:
del pubdirs.dirs[params]
except KeyError:
pass
self.connection.send(True)
self.connection.send(None)
self.is_alive = False
def _manage(self):
while True:
command = self.connection.recv()
if command == self.sentinel:
break
if isinstance(command, (list, tuple)):
command, params = command
if command == 'DB_LOCK':
self.lock_db()
elif command == 'DB_UNLOCK':
self.unlock_db()
elif command == 'DB_OPEN':
self.add_runtime_service('db')
elif command == 'DB_CLOSE':
self.remove_runtime_service('db')
elif command == 'NEW_MASTER':
from porcupine.db import _db
_db.get_replication_manager().master = params
elif command == 'RELOAD_PACKAGE':
try:
mod = sys.modules[params]
misc.reload_module_tree(mod)
except KeyError:
pass
elif command == 'RELOAD_MODULE':
try:
mod = sys.modules[params]
misc.reload_module(mod)
except KeyError:
pass
elif command == 'ADD_PUBDIR':
from porcupine.config import pubdirs
dir_name, dir = params
pubdirs.dirs[dir_name] = dir
elif command == 'REMOVE_PUBDIR':
from porcupine.config import pubdirs
try:
del pubdirs.dirs[params]
except KeyError:
pass
self.connection.send(True)
self.connection.send(None)
self.is_alive = False
def execute_command(self, cmd, request):
try:
# DB maintenance commands
if cmd == 'DB_BACKUP':
output_file = request.data
if not os.path.isdir(os.path.dirname(output_file)):
raise IOError
services.lock_db()
try:
_db.backup(output_file)
finally:
services.unlock_db()
return (0, 'Database backup completed successfully.')
elif cmd == 'DB_RESTORE':
backup_set = request.data
if not os.path.exists(backup_set):
raise IOError
services.lock_db()
services.close_db()
try:
_db.restore(backup_set)
finally:
services.open_db()
services.unlock_db()
return (0, 'Database restore completed successfully.')
elif cmd == 'DB_SHRINK':
iLogs = _db.shrink()
if iLogs:
return (0, 'Successfully removed %d log files.' % iLogs)
else:
return (0, 'No log files removed.')
# package management commands
elif cmd == 'PACKAGE':
ini_file = request.data
my_pkg = None
try:
my_pkg = Package(ini_file=ini_file)
my_pkg.create()
finally:
if my_pkg is not None:
my_pkg.close()
return (0, 'The package "%s-%s.ppf" was created succefully.'
% (my_pkg.name, my_pkg.version))
elif cmd == 'INSTALL':
# some scripts might require a security context
from porcupine import context
ppf_file = request.data
my_pkg = None
try:
my_pkg = Package(package_file=ppf_file)
# install as system
context.user = _db.get_item('system')
my_pkg.install()
finally:
if my_pkg is not None:
my_pkg.close()
context.user = None
return (0, 'The package "%s" was installed succefully.'
% ppf_file)
elif cmd == 'UNINSTALL':
# some scripts might require a security context
from porcupine import context
ppf_file = request.data
my_pkg = None
try:
my_pkg = Package(package_file=ppf_file)
# uninstall as system
context.user = _db.get_item('system')
my_pkg.uninstall()
finally:
if my_pkg is not None:
my_pkg.close()
context.user = None
return (0, 'The package "%s" was uninstalled succefully.'
% ppf_file)
# replication commands
elif cmd == 'SITE_INFO':
rep_mgr = _db.get_replication_manager()
if rep_mgr is not None:
site_list = list(rep_mgr.get_site_list().values())
site_list.append(
rep_mgr.local_site.address + (1,))
#print site_list
info = [str.format('{0:25}{1:10}{2:6}',
'SITE', 'STATUS', 'MASTER'),
'-' * 41]
for site in site_list:
site_address = site[:2]
if site[2] == 1:
s = 'ONLINE'
else:
s = 'OFFLINE'
if rep_mgr.master and \
rep_mgr.master.address == site_address:
m = 'X'
else:
m = ''
info.append(str.format('{0:25}{1:10}{2:6}',
site_address, s, m))
info.append('')
info.append('Total sites: %d' % len(site_list))
return (0, '\n'.join(info))
else:
raise NotImplementedError
elif cmd == 'REP_JOIN_SITE':
rep_mgr = _db.get_replication_manager()
if rep_mgr is not None:
site = request.data
#print('adding remote site %s' % (site.address, ))
site_list = rep_mgr.sites.values() + [rep_mgr.local_site]
rep_mgr.broadcast(MgtMessage('REP_ADD_REMOTE_SITE', site))
rep_mgr.add_remote_site(site)
return (0, [rep_mgr.master, site_list])
else:
raise NotImplementedError
elif cmd == 'REP_ADD_REMOTE_SITE':
rep_mgr = _db.get_replication_manager()
if rep_mgr is not None:
site = request.data
#print('adding remote site %s' % (site.address, ))
rep_mgr.add_remote_site(site)
return (0, None)
else:
raise NotImplementedError
elif cmd == 'REP_NEW_MASTER':
rep_mgr = _db.get_replication_manager()
if rep_mgr is not None:
master = request.data
#print('new master is %s' % (master.address, ))
rep_mgr.master = master
services.notify(('NEW_MASTER', master))
return (0, None)
else:
raise NotImplementedError
# other
elif cmd == 'RELOAD':
mod = misc.get_rto_by_name(request.data)
misc.reload_module_tree(mod)
services.notify(('RELOAD_PACKAGE', request.data))
return (0, 'Reloaded module tree "%s"' % request.data)
# unknown command
else:
logger.warning(
'Management service received unknown command: %s' % cmd)
return (-1, 'Unknown command.')
except IOError:
return (-1, 'Invalid file path.')
except NotImplementedError:
return (-1, 'Unsupported command.')
def execute_command(self, cmd, request):
try:
# DB maintenance commands
if cmd == 'DB_BACKUP':
output_file = request.data
if not os.path.isdir(os.path.dirname(output_file)):
raise IOError
services.lock_db()
try:
_db.backup(output_file)
finally:
services.unlock_db()
return (0, 'Database backup completed successfully.')
elif cmd == 'DB_RESTORE':
backup_set = request.data
if not os.path.exists(backup_set):
raise IOError
services.lock_db()
services.close_db()
try:
_db.restore(backup_set)
finally:
services.open_db()
services.unlock_db()
return (0, 'Database restore completed successfully.')
elif cmd == 'DB_SHRINK':
iLogs = _db.shrink()
if iLogs:
return (0, 'Successfully removed %d log files.' % iLogs)
else:
return (0, 'No log files removed.')
# package management commands
elif cmd == 'PACKAGE':
ini_file = request.data
my_pkg = None
try:
my_pkg = Package(ini_file=ini_file)
my_pkg.create()
finally:
if my_pkg is not None:
my_pkg.close()
return (0, 'The package "%s-%s.ppf" was created succefully.'
% (my_pkg.name, my_pkg.version))
elif cmd == 'INSTALL':
# some scripts might require a security context
from porcupine import context
ppf_file = request.data
my_pkg = None
try:
my_pkg = Package(package_file=ppf_file)
# install as system
context.user = _db.get_item('system')
my_pkg.install()
finally:
if my_pkg is not None:
my_pkg.close()
context.user = None
return (0, 'The package "%s" was installed succefully.'
% ppf_file)
elif cmd == 'UNINSTALL':
# some scripts might require a security context
from porcupine import context
ppf_file = request.data
my_pkg = None
try:
my_pkg = Package(package_file=ppf_file)
# uninstall as system
context.user = _db.get_item('system')
my_pkg.uninstall()
finally:
if my_pkg is not None:
my_pkg.close()
context.user = None
return (0, 'The package "%s" was uninstalled succefully.'
% ppf_file)
# replication commands
elif cmd == 'SITE_INFO':
rep_mgr = _db.get_replication_manager()
if rep_mgr is not None:
site_list = list(rep_mgr.get_site_list().values())
site_list.append(
rep_mgr.local_site.address + (1,))
#print site_list
info = [str.format('{0:25}{1:10}{2:6}',
'SITE', 'STATUS', 'MASTER'),
'-' * 41]
for site in site_list:
site_address = site[:2]
if site[2] == 1:
s = 'ONLINE'
else:
s = 'OFFLINE'
if rep_mgr.master and \
rep_mgr.master.address == site_address:
m = 'X'
else:
m = ''
info.append(str.format('{0:25}{1:10}{2:6}',
site_address, s, m))
info.append('')
info.append('Total sites: %d' % len(site_list))
return (0, '\n'.join(info))
else:
raise NotImplementedError
elif cmd == 'REP_JOIN_SITE':
rep_mgr = _db.get_replication_manager()
if rep_mgr is not None:
site = request.data
#print('adding remote site %s' % (site.address, ))
site_list = rep_mgr.sites.values() + [rep_mgr.local_site]
rep_mgr.broadcast(MgtMessage('REP_ADD_REMOTE_SITE', site))
rep_mgr.add_remote_site(site)
return (0, [rep_mgr.master, site_list])
else:
raise NotImplementedError
elif cmd == 'REP_ADD_REMOTE_SITE':
rep_mgr = _db.get_replication_manager()
if rep_mgr is not None:
site = request.data
#print('adding remote site %s' % (site.address, ))
rep_mgr.add_remote_site(site)
return (0, None)
else:
raise NotImplementedError
elif cmd == 'REP_NEW_MASTER':
rep_mgr = _db.get_replication_manager()
if rep_mgr is not None:
master = request.data
#print('new master is %s' % (master.address, ))
rep_mgr.master = master
services.notify(('NEW_MASTER', master))
return (0, None)
else:
raise NotImplementedError
# other
elif cmd == 'RELOAD':
mod = misc.get_rto_by_name(request.data)
misc.reload_module_tree(mod)
services.notify(('RELOAD_PACKAGE', request.data))
return (0, 'Reloaded module tree "%s"' % request.data)
# unknown command
else:
logger.warning(
'Management service received unknown command: %s' % cmd)
return (-1, 'Unknown command.')
except IOError:
return (-1, 'Invalid file path.')
except NotImplementedError:
return (-1, 'Unsupported command.')
