def updateApplication(app, config):
profileTable=McFoo.score.ProfileTable()
filler=McFoo.suggest.Suggestions(config.songdirs, profileTable)
playqueue = McFoo.playqueue.PlayQueue(filler.get)
volume = McFoo.volume.VolumeControl()
auth = DefaultAuthorizer()
auth.setApplication(app)
dj=McFoo.dj.Dj(app, auth,
playqueue, volume, profileTable)
perspective=dj.getPerspectiveNamed("guest")
perspective.setService(dj)
perspective.makeIdentity("guest")
portno = config.port
prot = pb.BrokerFactory(pb.AuthRoot(auth))
app.listenTCP(portno, prot)
SaveService("save", app, auth)
class Application(log.Logger, styles.Versioned,
Accessor, _AbstractServiceCollection):
"""I am the `root object' in a Twisted process.
I represent a set of persistent, potentially interconnected listening TCP
ports, delayed event schedulers, and service.Services.
"""
running = 0
processName = None
def __init__(self, name, uid=None, gid=None, authorizer=None, authorizer_=None):
"""Initialize me.
If uid and gid arguments are not provided, this application will
default to having the uid and gid of the user and group who created it.
@param name: a name
@param uid: (optional) a POSIX user-id. Only used on POSIX systems.
@param gid: (optional) a POSIX group-id. Only used on POSIX systems.
"""
_AbstractServiceCollection.__init__(self)
self.name = name
self.tcpPorts = [] # check
self.udpPorts = []
self.sslPorts = []
self.unixPorts = []
self.extraPorts = []
self._listenerDict = {}
self._extraListeners = {}
self.tcpConnectors = []
self.udpConnectors = []
self.sslConnectors = []
self.unixConnectors = []
self.extraConnectors = []
self.services = {} # check
a = authorizer or authorizer_
if a:
self._authorizer = a
self._authorizer.setServiceCollection(self)
if platform.getType() == "posix":
if uid is None:
uid = os.getuid()
self.uid = uid
if gid is None:
gid = os.getgid()
self.gid = gid
persistenceVersion = 12
_authorizer = None
def get_authorizer(self):
warnings.warn("Application.authorizer attribute is deprecated, use Service.authorizer instead",
category=DeprecationWarning, stacklevel=3)
if not self._authorizer:
self._authorizer = DefaultAuthorizer()
self._authorizer.setApplication(self)
return self._authorizer
def upgradeToVersion12(self):
up = []
for port, factory, backlog in self.unixPorts:
up.append((port, factory, backlog, 0666))
self.unixPorts = up
def upgradeToVersion11(self):
self._extraListeners = {}
self.extraPorts = []
self.extraConnectors = []
self.unixPorts = []
self.udpConnectors = []
toRemove = []
for t in self.tcpPorts:
port, factory, backlog, interface = t
if isinstance(port, types.StringTypes):
self.unixPorts.append((port, factory, backlog))
toRemove.append(t)
for t in toRemove:
self.tcpPorts.remove(t)
def upgradeToVersion10(self):
pass
def upgradeToVersion9(self):
self._authorizer = self.authorizer
del self.authorizer
self.tcpConnectors = self.connectors
del self.connectors
self.sslConnectors = []
self.unixConnectors = []
def upgradeToVersion8(self):
self.persistStyle = "pickle"
if hasattr(self, 'asXML'):
if self.asXML:
self.persistStyle = "xml"
del self.asXML
def upgradeToVersion7(self):
self.tcpPorts = []
self.udpPorts = []
self.sslPorts = []
from twisted.internet import tcp, udp
for port in self.ports:
if isinstance(port, tcp.Port):
self.tcpPorts.append(
(port.port, port.factory,
port.backlog, port.interface))
elif isinstance(port, udp.Port):
self.udpPorts.append(
port.port, port.factory,
port.interface, port.maxPacketSize)
else:
log.msg('upgrade of %s not implemented, sorry' % port.__class__)
del self.ports
def upgradeToVersion6(self):
del self.resolver
def upgradeToVersion5(self):
if hasattr(self, "entities"):
del self.entities
def upgradeToVersion4(self):
"""Version 4 Persistence Upgrade
"""
def upgradeToVersion3(self):
"""Version 3 Persistence Upgrade
"""
pass
def upgradeToVersion2(self):
"""Version 2 Persistence Upgrade
"""
self.resolver = None # will be deleted in upgrade to v6
def upgradeToVersion1(self):
"""Version 1 Persistence Upgrade
"""
log.msg("Upgrading %s Application." % repr(self.name))
self.authorizer = DefaultAuthorizer()
self.services = {}
def __repr__(self):
return "<%s app>" % repr(self.name)
def __getstate__(self):
dict = styles.Versioned.__getstate__(self)
if dict.has_key("running"):
del dict['running']
if dict.has_key("_boundPorts"):
del dict['_boundPorts']
if dict.has_key("_listenerDict"):
del dict['_listenerDict']
if dict.has_key("_extraListeners"):
del dict["_extraListeners"]
return dict
def listenWith(self, portType, *args, **kw):
"""
Start an instance of the given C{portType} listening.
@type portType: type which implements C{IListeningPort}
"""
self.extraPorts.append((portType, args, kw))
if self.running:
from twisted.internet import reactor
p = reactor.listenWith(portType, *args, **kw)
self._extraListeners[(portType, args, kw)] = p
return p
def unlistenWith(self, portType, *args, **kw):
"""
Stop a Port listening with the given parameters.
"""
toRemove = []
for t in self.extraPorts:
_portType, _args, _kw = t
if portType == _portType:
if args == _args[:len(args)]:
for (k, v) in kw.items():
if _kw.has_key(k) and _kw[k] != v:
break
else:
toRemove.append(t)
if toRemove:
for t in toRemove:
self.extraPorts.remove(t)
if self._extraListeners.has_key(t):
self._extraListeners[t].stopListening()
del self._extraListeners[t]
else:
raise error.NotListeningError, (portType, args, kw)
def listenTCP(self, port, factory, backlog=50, interface=''):
"""
Connects a given protocol factory to the given numeric TCP/IP port.
"""
self.tcpPorts.append((port, factory, backlog, interface))
if self.running:
from twisted.internet import reactor
return reactor.listenTCP(port, factory, backlog, interface)
def unlistenTCP(self, port, interface=''):
"""
Stop a Port listening on the given port and interface.
"""
toRemove = []
for t in self.tcpPorts:
port_, factory_, backlog_, interface_ = t
if port == port_ and interface == interface_:
toRemove.append(t)
if toRemove:
for t in toRemove:
self.tcpPorts.remove(t)
if self._listenerDict.has_key((port, interface)):
self._listenerDict[(port, interface)].stopListening()
else:
raise error.NotListeningError, (interface, port)
def listenUNIX(self, filename, factory, backlog=50, mode=0666):
"""
Connects a given protocol factory to the UNIX socket with the given filename.
"""
self.unixPorts.append((filename, factory, backlog, mode))
if self.running:
from twisted.internet import reactor
return reactor.listenUNIX(filename, factory, backlog, mode)
def unlistenUNIX(self, filename):
"""
Stop a Port listening on the given filename.
"""
toRemove = []
for t in self.unixPorts:
filename_, factory_, backlog_, mode_ = t
if filename == filename_:
toRemove.append(t)
if toRemove:
for t in toRemove:
self.unixPorts.remove(t)
if self._listenerDict.has_key(filename):
self._listenerDict[filename].stopListening()
else:
raise error.NotListeningError, filename
def listenUDP(self, port, proto, interface='', maxPacketSize=8192):
"""
Connects a given DatagramProtocol to the given numeric UDP port.
"""
self.udpPorts.append((port, proto, interface, maxPacketSize))
if self.running:
from twisted.internet import reactor
return reactor.listenUDP(port, proto, interface, maxPacketSize)
def unlistenUDP(self, port, interface=''):
"""
Stop a DatagramProtocol listening on the given local port and
interface.
"""
toRemove = []
for t in self.udpPorts:
port_, factory_, interface_, size_ = t
if port_ == port and interface_ == interface:
toRemove.append(t)
if toRemove:
for t in toRemove:
self.udpPorts.remove(t)
else:
raise error.NotListeningError, (interface, port)
def listenSSL(self, port, factory, ctxFactory, backlog=50, interface=''):
"""
Connects a given protocol factory to the given numeric TCP/IP port.
The connection is a SSL one, using contexts created by the context
factory.
"""
self.sslPorts.append((port, factory, ctxFactory, backlog, interface))
if self.running:
from twisted.internet import reactor
return reactor.listenSSL(port, factory, ctxFactory, backlog, interface)
def unlistenSSL(self, port, interface=''):
"""
Stop an SSL Port listening on the given interface and port.
"""
toRemove = []
for t in self.sslPorts:
port_, factory_, ctx_, back_, interface_ = t
if port_ == port and interface_ == interface:
toRemove.append(t)
if toRemove:
for t in toRemove:
self.sslPorts.remove(t)
else:
raise error.NotListeningError, (interface, port)
def connectWith(self, connectorType, *args, **kw):
"""
Start an instance of the given C{connectorType} connecting.
@type connectorType: type which implements C{IConnector}
"""
self.extraConnectors.append((connectorType, args, kw))
if self.running:
from twisted.internet import reactor
return reactor.connectWith(connectorType, *args, **kw)
def connectUDP(self, remotehost, remoteport, protocol, localport=0,
interface='', maxPacketSize=8192):
"""Connects a L{ConnectedDatagramProtocol} instance to a UDP port."""
self.udpConnectors.append((
remotehost, remoteport, protocol,
localport, interface, maxPacketSize
))
if self.running:
from twisted.internet import reactor
return reactor.connectUDP(
remotehost, remoteport, protocol,
localport, interface, maxPacketSize
)
def connectTCP(self, host, port, factory, timeout=30, bindAddress=None):
"""Connect a given client protocol factory to a specific TCP server."""
self.tcpConnectors.append((host, port, factory, timeout, bindAddress))
if self.running:
from twisted.internet import reactor
return reactor.connectTCP(host, port, factory, timeout, bindAddress)
def connectSSL(self, host, port, factory, ctxFactory, timeout=30, bindAddress=None):
"""Connect a given client protocol factory to a specific SSL server."""
self.sslConnectors.append((host, port, factory, ctxFactory, timeout, bindAddress))
if self.running:
from twisted.internet import reactor
return reactor.connectSSL(host, port, factory, ctxFactory, timeout, bindAddress)
def connectUNIX(self, address, factory, timeout=30):
"""Connect a given client protocol factory to a specific UNIX socket."""
self.unixConnectors.append((address, factory, timeout))
if self.running:
from twisted.internet import reactor
return reactor.connectUNIX(address, factory, timeout)
def setEUID(self):
"""Retrieve persistent uid/gid pair (if possible) and set the current
process's euid/egid.
"""
try:
os.setegid(self.gid)
os.seteuid(self.uid)
except (AttributeError, OSError):
pass
else:
log.msg('set euid/egid %s/%s' % (self.uid, self.gid))
def setUID(self):
"""Retrieve persistent uid/gid pair (if possible) and set the current process's uid/gid
"""
try:
os.setgid(self.gid)
os.setuid(self.uid)
except (AttributeError, OSError):
pass
else:
log.msg('set uid/gid %s/%s' % (self.uid, self.gid))
persistStyle = "pickle"
def save(self, tag=None, filename=None, passphrase=None):
"""Save a pickle of this application to a file in the current directory.
"""
if self.persistStyle == "xml":
from twisted.persisted.marmalade import jellyToXML
dumpFunc = jellyToXML
ext = "tax"
elif self.persistStyle == "aot":
from twisted.persisted.aot import jellyToSource
dumpFunc = jellyToSource
ext = "tas"
else:
def dumpFunc(obj, file, _dump=pickle.dump):
_dump(obj, file, 1)
ext = "tap"
if filename:
finalname = filename
filename = finalname + "-2"
else:
if passphrase:
ext = 'e' + ext
if tag:
filename = "%s-%s-2.%s" % (self.name, tag, ext)
finalname = "%s-%s.%s" % (self.name, tag, ext)
else:
filename = "%s-2.%s" % (self.name, ext)
finalname = "%s.%s" % (self.name, ext)
log.msg("Saving "+self.name+" application to "+finalname+"...")
if passphrase is None:
f = open(filename, 'wb')
dumpFunc(self, f)
f.flush()
f.close()
else:
f = StringIO.StringIO()
dumpFunc(self, f)
s = encrypt(passphrase, f.getvalue())
f = open(filename, 'wb')
f.write(s)
f.flush()
f.close()
if platform.getType() == "win32":
if os.path.isfile(finalname):
os.remove(finalname)
os.rename(filename, finalname)
log.msg("Saved.")
def logPrefix(self):
"""A log prefix which describes me.
"""
return "*%s*" % self.name
def _beforeShutDown(self):
l = []
services = self.services.values()
for service in services:
try:
d = service.stopService()
if isinstance(d, defer.Deferred):
l.append(d)
except:
log.deferr()
if l:
return defer.DeferredList(l)
def _afterShutDown(self):
if self._save:
self.save("shutdown")
_boundPorts = 0
def bindPorts(self):
log.callWithLogger(self, self._doBindPorts)
def _doBindPorts(self):
from twisted.internet import reactor
self._listenerDict= {}
self._boundPorts = 1
if not self.running:
for filename, factory, backlog, mode in self.unixPorts:
try:
self._listenerDict[filename] = reactor.listenUNIX(filename, factory, backlog, mode)
except error.CannotListenError, msg:
log.msg('error on UNIX socket %s: %s' % (filename, msg))
return
for port, factory, backlog, interface in self.tcpPorts:
try:
self._listenerDict[port, interface] = reactor.listenTCP(port, factory, backlog, interface)
except error.CannotListenError, msg:
log.msg('error on TCP port %s: %s' % (port, msg))
return
for port, factory, interface, maxPacketSize in self.udpPorts:
try:
reactor.listenUDP(port, factory, interface, maxPacketSize)
except error.CannotListenError, msg:
log.msg('error on UDP port %s: %s' % (port, msg))
return
class Application(log.Logger, styles.Versioned, Accessor,
_AbstractServiceCollection):
"""I am the `root object' in a Twisted process.
I represent a set of persistent, potentially interconnected listening TCP
ports, delayed event schedulers, and service.Services.
"""
running = 0
processName = None
#
# XXX
#
# The profusion of xyzPorts, xyzListeners, _listenerDict, and
# _extraListeners has long since passed the point of excess.
# Someone who feels like taking the time should merge all of these
# into a set of "universal" trackers. One for ports, one for listeners,
# one for things that are -actually- listening and connecting.
# This requires another version bump and an upgrade function, of course.
#
def __init__(self,
name,
uid=None,
gid=None,
authorizer=None,
authorizer_=None):
"""Initialize me.
If uid and gid arguments are not provided, this application will
default to having the uid and gid of the user and group who created it.
@param name: a name
@param uid: (optional) a POSIX user-id. Only used on POSIX systems.
@param gid: (optional) a POSIX group-id. Only used on POSIX systems.
"""
_AbstractServiceCollection.__init__(self)
self.name = name
# a list of (tcp, ssl, udp) Ports
self.tcpPorts = [] # check
self.udpPorts = []
self.sslPorts = []
self.unixPorts = []
self.extraPorts = []
self._listenerDict = {}
self._extraListeners = {}
# a list of (tcp, ssl, udp) Connectors
self.tcpConnectors = []
self.udpConnectors = []
self.sslConnectors = []
self.unixConnectors = []
self.extraConnectors = []
# a dict of ApplicationServices
self.services = {} # check
# a cred authorizer
a = authorizer or authorizer_
if a:
self._authorizer = a
self._authorizer.setServiceCollection(self)
if platform.getType() == "posix":
if uid is None:
uid = os.getuid()
self.uid = uid
if gid is None:
gid = os.getgid()
self.gid = gid
persistenceVersion = 12
_authorizer = None
def get_authorizer(self):
warnings.warn(
"Application.authorizer attribute is deprecated, use Service.authorizer instead",
category=DeprecationWarning,
stacklevel=3)
if not self._authorizer:
self._authorizer = DefaultAuthorizer()
self._authorizer.setApplication(self)
return self._authorizer
def upgradeToVersion12(self):
up = []
for port, factory, backlog in self.unixPorts:
up.append((port, factory, backlog, 0666))
self.unixPorts = up
def upgradeToVersion11(self):
self._extraListeners = {}
self.extraPorts = []
self.extraConnectors = []
self.unixPorts = []
self.udpConnectors = []
toRemove = []
for t in self.tcpPorts:
port, factory, backlog, interface = t
if isinstance(port, types.StringTypes):
self.unixPorts.append((port, factory, backlog))
toRemove.append(t)
for t in toRemove:
self.tcpPorts.remove(t)
def upgradeToVersion10(self):
# persistenceVersion was 10, but this method did not exist
# I do not know why.
pass
def upgradeToVersion9(self):
self._authorizer = self.authorizer
del self.authorizer
self.tcpConnectors = self.connectors
del self.connectors
self.sslConnectors = []
self.unixConnectors = []
def upgradeToVersion8(self):
self.persistStyle = "pickle"
if hasattr(self, 'asXML'):
if self.asXML:
self.persistStyle = "xml"
del self.asXML
def upgradeToVersion7(self):
self.tcpPorts = []
self.udpPorts = []
self.sslPorts = []
from twisted.internet import tcp, udp
for port in self.ports:
if isinstance(port, tcp.Port):
self.tcpPorts.append(
(port.port, port.factory, port.backlog, port.interface))
elif isinstance(port, udp.Port):
self.udpPorts.append(port.port, port.factory, port.interface,
port.maxPacketSize)
else:
log.msg('upgrade of %s not implemented, sorry' %
port.__class__)
del self.ports
def upgradeToVersion6(self):
del self.resolver
def upgradeToVersion5(self):
if hasattr(self, "entities"):
del self.entities
def upgradeToVersion4(self):
"""Version 4 Persistence Upgrade
"""
def upgradeToVersion3(self):
"""Version 3 Persistence Upgrade
"""
#roots.Locked.__init__(self)
#self._addEntitiesAndLock()
pass
def upgradeToVersion2(self):
"""Version 2 Persistence Upgrade
"""
self.resolver = None # will be deleted in upgrade to v6
def upgradeToVersion1(self):
"""Version 1 Persistence Upgrade
"""
log.msg("Upgrading %s Application." % repr(self.name))
self.authorizer = DefaultAuthorizer()
self.services = {}
def __repr__(self):
return "<%s app>" % repr(self.name)
def __getstate__(self):
dict = styles.Versioned.__getstate__(self)
if dict.has_key("running"):
del dict['running']
if dict.has_key("_boundPorts"):
del dict['_boundPorts']
if dict.has_key("_listenerDict"):
del dict['_listenerDict']
if dict.has_key("_extraListeners"):
del dict["_extraListeners"]
return dict
def listenWith(self, portType, *args, **kw):
"""
Start an instance of the given C{portType} listening.
@type portType: type which implements C{IListeningPort}
"""
self.extraPorts.append((portType, args, kw))
if self.running:
from twisted.internet import reactor
p = reactor.listenWith(portType, *args, **kw)
self._extraListeners[(portType, args, kw)] = p
return p
def unlistenWith(self, portType, *args, **kw):
"""
Stop a Port listening with the given parameters.
"""
toRemove = []
for t in self.extraPorts:
_portType, _args, _kw = t
if portType == _portType:
if args == _args[:len(args)]:
for (k, v) in kw.items():
if _kw.has_key(k) and _kw[k] != v:
break
else:
toRemove.append(t)
if toRemove:
for t in toRemove:
self.extraPorts.remove(t)
if self._extraListeners.has_key(t):
self._extraListeners[t].stopListening()
del self._extraListeners[t]
else:
raise error.NotListeningError, (portType, args, kw)
def listenTCP(self, port, factory, backlog=50, interface=''):
"""
Connects a given protocol factory to the given numeric TCP/IP port.
"""
self.tcpPorts.append((port, factory, backlog, interface))
if self.running:
from twisted.internet import reactor
return reactor.listenTCP(port, factory, backlog, interface)
def unlistenTCP(self, port, interface=''):
"""
Stop a Port listening on the given port and interface.
"""
toRemove = []
for t in self.tcpPorts:
port_, factory_, backlog_, interface_ = t
if port == port_ and interface == interface_:
toRemove.append(t)
if toRemove:
for t in toRemove:
self.tcpPorts.remove(t)
if self._listenerDict.has_key((port, interface)):
self._listenerDict[(port, interface)].stopListening()
else:
raise error.NotListeningError, (interface, port)
def listenUNIX(self, filename, factory, backlog=50, mode=0666):
"""
Connects a given protocol factory to the UNIX socket with the given filename.
"""
self.unixPorts.append((filename, factory, backlog, mode))
if self.running:
from twisted.internet import reactor
return reactor.listenUNIX(filename, factory, backlog, mode)
def unlistenUNIX(self, filename):
"""
Stop a Port listening on the given filename.
"""
toRemove = []
for t in self.unixPorts:
filename_, factory_, backlog_, mode_ = t
if filename == filename_:
toRemove.append(t)
if toRemove:
for t in toRemove:
self.unixPorts.remove(t)
if self._listenerDict.has_key(filename):
self._listenerDict[filename].stopListening()
else:
raise error.NotListeningError, filename
def listenUDP(self, port, proto, interface='', maxPacketSize=8192):
"""
Connects a given DatagramProtocol to the given numeric UDP port.
"""
self.udpPorts.append((port, proto, interface, maxPacketSize))
if self.running:
from twisted.internet import reactor
return reactor.listenUDP(port, proto, interface, maxPacketSize)
def unlistenUDP(self, port, interface=''):
"""
Stop a DatagramProtocol listening on the given local port and
interface.
"""
toRemove = []
for t in self.udpPorts:
port_, factory_, interface_, size_ = t
if port_ == port and interface_ == interface:
toRemove.append(t)
if toRemove:
for t in toRemove:
self.udpPorts.remove(t)
else:
raise error.NotListeningError, (interface, port)
def listenSSL(self, port, factory, ctxFactory, backlog=50, interface=''):
"""
Connects a given protocol factory to the given numeric TCP/IP port.
The connection is a SSL one, using contexts created by the context
factory.
"""
self.sslPorts.append((port, factory, ctxFactory, backlog, interface))
if self.running:
from twisted.internet import reactor
return reactor.listenSSL(port, factory, ctxFactory, backlog,
interface)
def unlistenSSL(self, port, interface=''):
"""
Stop an SSL Port listening on the given interface and port.
"""
toRemove = []
for t in self.sslPorts:
port_, factory_, ctx_, back_, interface_ = t
if port_ == port and interface_ == interface:
toRemove.append(t)
if toRemove:
for t in toRemove:
self.sslPorts.remove(t)
else:
raise error.NotListeningError, (interface, port)
def connectWith(self, connectorType, *args, **kw):
"""
Start an instance of the given C{connectorType} connecting.
@type connectorType: type which implements C{IConnector}
"""
self.extraConnectors.append((connectorType, args, kw))
if self.running:
from twisted.internet import reactor
return reactor.connectWith(connectorType, *args, **kw)
def connectUDP(self,
remotehost,
remoteport,
protocol,
localport=0,
interface='',
maxPacketSize=8192):
"""Connects a L{ConnectedDatagramProtocol} instance to a UDP port."""
self.udpConnectors.append((remotehost, remoteport, protocol, localport,
interface, maxPacketSize))
if self.running:
from twisted.internet import reactor
return reactor.connectUDP(remotehost, remoteport, protocol,
localport, interface, maxPacketSize)
def connectTCP(self, host, port, factory, timeout=30, bindAddress=None):
"""Connect a given client protocol factory to a specific TCP server."""
self.tcpConnectors.append((host, port, factory, timeout, bindAddress))
if self.running:
from twisted.internet import reactor
return reactor.connectTCP(host, port, factory, timeout,
bindAddress)
def connectSSL(self,
host,
port,
factory,
ctxFactory,
timeout=30,
bindAddress=None):
"""Connect a given client protocol factory to a specific SSL server."""
self.sslConnectors.append(
(host, port, factory, ctxFactory, timeout, bindAddress))
if self.running:
from twisted.internet import reactor
return reactor.connectSSL(host, port, factory, ctxFactory, timeout,
bindAddress)
def connectUNIX(self, address, factory, timeout=30):
"""Connect a given client protocol factory to a specific UNIX socket."""
self.unixConnectors.append((address, factory, timeout))
if self.running:
from twisted.internet import reactor
return reactor.connectUNIX(address, factory, timeout)
def setEUID(self):
"""Retrieve persistent uid/gid pair (if possible) and set the current
process's euid/egid.
"""
try:
os.setegid(self.gid)
os.seteuid(self.uid)
except (AttributeError, OSError):
pass
else:
log.msg('set euid/egid %s/%s' % (self.uid, self.gid))
def setUID(self):
"""Retrieve persistent uid/gid pair (if possible) and set the current process's uid/gid
"""
try:
os.setgid(self.gid)
os.setuid(self.uid)
except (AttributeError, OSError):
pass
else:
log.msg('set uid/gid %s/%s' % (self.uid, self.gid))
persistStyle = "pickle"
def save(self, tag=None, filename=None, passphrase=None):
"""Save a pickle of this application to a file in the current directory.
"""
if self.persistStyle == "xml":
from twisted.persisted.marmalade import jellyToXML
dumpFunc = jellyToXML
ext = "tax"
elif self.persistStyle == "aot":
from twisted.persisted.aot import jellyToSource
dumpFunc = jellyToSource
ext = "tas"
else:
def dumpFunc(obj, file, _dump=pickle.dump):
_dump(obj, file, 1)
ext = "tap"
if filename:
finalname = filename
filename = finalname + "-2"
else:
if passphrase:
ext = 'e' + ext
if tag:
filename = "%s-%s-2.%s" % (self.name, tag, ext)
finalname = "%s-%s.%s" % (self.name, tag, ext)
else:
filename = "%s-2.%s" % (self.name, ext)
finalname = "%s.%s" % (self.name, ext)
log.msg("Saving " + self.name + " application to " + finalname + "...")
if passphrase is None:
f = open(filename, 'wb')
dumpFunc(self, f)
f.flush()
f.close()
else:
f = StringIO.StringIO()
dumpFunc(self, f)
s = encrypt(passphrase, f.getvalue())
f = open(filename, 'wb')
f.write(s)
f.flush()
f.close()
if platform.getType() == "win32":
if os.path.isfile(finalname):
os.remove(finalname)
os.rename(filename, finalname)
log.msg("Saved.")
def logPrefix(self):
"""A log prefix which describes me.
"""
return "*%s*" % self.name
def _beforeShutDown(self):
l = []
services = self.services.values()
for service in services:
try:
d = service.stopService()
if isinstance(d, defer.Deferred):
l.append(d)
except:
log.deferr()
if l:
return defer.DeferredList(l)
def _afterShutDown(self):
if self._save:
self.save("shutdown")
_boundPorts = 0
def bindPorts(self):
log.callWithLogger(self, self._doBindPorts)
def _doBindPorts(self):
from twisted.internet import reactor
self._listenerDict = {}
self._boundPorts = 1
if not self.running:
for filename, factory, backlog, mode in self.unixPorts:
try:
self._listenerDict[filename] = reactor.listenUNIX(
filename, factory, backlog, mode)
except error.CannotListenError, msg:
log.msg('error on UNIX socket %s: %s' % (filename, msg))
return
for port, factory, backlog, interface in self.tcpPorts:
try:
self._listenerDict[port, interface] = reactor.listenTCP(
port, factory, backlog, interface)
except error.CannotListenError, msg:
log.msg('error on TCP port %s: %s' % (port, msg))
return
for port, factory, interface, maxPacketSize in self.udpPorts:
try:
reactor.listenUDP(port, factory, interface, maxPacketSize)
except error.CannotListenError, msg:
log.msg('error on UDP port %s: %s' % (port, msg))
return
