296 lines
9.2 KiB
Python
296 lines
9.2 KiB
Python
|
#
|
||
|
|
# BitBake XMLRPC Server
|
||
|
|
#
|
||
|
|
# Copyright (C) 2006 - 2007 Michael 'Mickey' Lauer
|
||
|
|
# Copyright (C) 2006 - 2008 Richard Purdie
|
||
|
|
#
|
||
|
|
# This program is free software; you can redistribute it and/or modify
|
||
|
|
# it under the terms of the GNU General Public License version 2 as
|
||
|
|
# published by the Free Software Foundation.
|
||
|
|
#
|
||
|
|
# 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.
|
||
|
|
|
||
|
|
"""
|
||
|
|
This module implements an xmlrpc server for BitBake.
|
||
|
|
|
||
|
|
Use this by deriving a class from BitBakeXMLRPCServer and then adding
|
||
|
|
methods which you want to "export" via XMLRPC. If the methods have the
|
||
|
|
prefix xmlrpc_, then registering those function will happen automatically,
|
||
|
|
if not, you need to call register_function.
|
||
|
|
|
||
|
|
Use register_idle_function() to add a function which the xmlrpc server
|
||
|
|
calls from within server_forever when no requests are pending. Make sure
|
||
|
|
that those functions are non-blocking or else you will introduce latency
|
||
|
|
in the server's main loop.
|
||
|
|
"""
|
||
|
|
|
||
|
|
import bb
|
||
|
|
import xmlrpclib, sys
|
||
|
|
from bb import daemonize
|
||
|
|
from bb.ui import uievent
|
||
|
|
|
||
|
|
DEBUG = False
|
||
|
|
|
||
|
|
from SimpleXMLRPCServer import SimpleXMLRPCServer, SimpleXMLRPCRequestHandler
|
||
|
|
import inspect, select
|
||
|
|
|
||
|
|
if sys.hexversion < 0x020600F0:
|
||
|
|
print("Sorry, python 2.6 or later is required for bitbake's XMLRPC mode")
|
||
|
|
sys.exit(1)
|
||
|
|
|
||
|
|
##
|
||
|
|
# The xmlrpclib.Transport class has undergone various changes in Python 2.7
|
||
|
|
# which break BitBake's XMLRPC implementation.
|
||
|
|
# To work around this we subclass Transport and have a copy/paste of method
|
||
|
|
# implementations from Python 2.6.6's xmlrpclib.
|
||
|
|
#
|
||
|
|
# Upstream Python bug is #8194 (http://bugs.python.org/issue8194)
|
||
|
|
# This bug is relevant for Python 2.7.0 and 2.7.1 but was fixed for
|
||
|
|
# Python > 2.7.2
|
||
|
|
##
|
||
|
|
|
||
|
|
class BBTransport(xmlrpclib.Transport):
|
||
|
|
def request(self, host, handler, request_body, verbose=0):
|
||
|
|
h = self.make_connection(host)
|
||
|
|
if verbose:
|
||
|
|
h.set_debuglevel(1)
|
||
|
|
|
||
|
|
self.send_request(h, handler, request_body)
|
||
|
|
self.send_host(h, host)
|
||
|
|
self.send_user_agent(h)
|
||
|
|
self.send_content(h, request_body)
|
||
|
|
|
||
|
|
errcode, errmsg, headers = h.getreply()
|
||
|
|
|
||
|
|
if errcode != 200:
|
||
|
|
raise ProtocolError(
|
||
|
|
host + handler,
|
||
|
|
errcode, errmsg,
|
||
|
|
headers
|
||
|
|
)
|
||
|
|
|
||
|
|
self.verbose = verbose
|
||
|
|
|
||
|
|
try:
|
||
|
|
sock = h._conn.sock
|
||
|
|
except AttributeError:
|
||
|
|
sock = None
|
||
|
|
|
||
|
|
return self._parse_response(h.getfile(), sock)
|
||
|
|
|
||
|
|
def make_connection(self, host):
|
||
|
|
import httplib
|
||
|
|
host, extra_headers, x509 = self.get_host_info(host)
|
||
|
|
return httplib.HTTP(host)
|
||
|
|
|
||
|
|
def _parse_response(self, file, sock):
|
||
|
|
p, u = self.getparser()
|
||
|
|
|
||
|
|
while 1:
|
||
|
|
if sock:
|
||
|
|
response = sock.recv(1024)
|
||
|
|
else:
|
||
|
|
response = file.read(1024)
|
||
|
|
if not response:
|
||
|
|
break
|
||
|
|
if self.verbose:
|
||
|
|
print "body:", repr(response)
|
||
|
|
p.feed(response)
|
||
|
|
|
||
|
|
file.close()
|
||
|
|
p.close()
|
||
|
|
|
||
|
|
return u.close()
|
||
|
|
|
||
|
|
def _create_server(host, port):
|
||
|
|
# Python 2.7.0 and 2.7.1 have a buggy Transport implementation
|
||
|
|
# For those versions of Python, and only those versions, use our
|
||
|
|
# own copy/paste BBTransport class.
|
||
|
|
if (2, 7, 0) <= sys.version_info < (2, 7, 2):
|
||
|
|
t = BBTransport()
|
||
|
|
s = xmlrpclib.Server("http://%s:%d/" % (host, port), transport=t, allow_none=True)
|
||
|
|
else:
|
||
|
|
s = xmlrpclib.Server("http://%s:%d/" % (host, port), allow_none=True)
|
||
|
|
|
||
|
|
return s
|
||
|
|
|
||
|
|
class BitBakeServerCommands():
|
||
|
|
def __init__(self, server):
|
||
|
|
self.server = server
|
||
|
|
|
||
|
|
def registerEventHandler(self, host, port):
|
||
|
|
"""
|
||
|
|
Register a remote UI Event Handler
|
||
|
|
"""
|
||
|
|
s = _create_server(host, port)
|
||
|
|
|
||
|
|
return bb.event.register_UIHhandler(s)
|
||
|
|
|
||
|
|
def unregisterEventHandler(self, handlerNum):
|
||
|
|
"""
|
||
|
|
Unregister a remote UI Event Handler
|
||
|
|
"""
|
||
|
|
return bb.event.unregister_UIHhandler(handlerNum)
|
||
|
|
|
||
|
|
def runCommand(self, command):
|
||
|
|
"""
|
||
|
|
Run a cooker command on the server
|
||
|
|
"""
|
||
|
|
return self.cooker.command.runCommand(command)
|
||
|
|
|
||
|
|
def terminateServer(self):
|
||
|
|
"""
|
||
|
|
Trigger the server to quit
|
||
|
|
"""
|
||
|
|
self.server.quit = True
|
||
|
|
print("Server (cooker) exiting")
|
||
|
|
return
|
||
|
|
|
||
|
|
def ping(self):
|
||
|
|
"""
|
||
|
|
Dummy method which can be used to check the server is still alive
|
||
|
|
"""
|
||
|
|
return True
|
||
|
|
|
||
|
|
class BitBakeXMLRPCServer(SimpleXMLRPCServer):
|
||
|
|
# remove this when you're done with debugging
|
||
|
|
# allow_reuse_address = True
|
||
|
|
|
||
|
|
def __init__(self, interface = ("localhost", 0)):
|
||
|
|
"""
|
||
|
|
Constructor
|
||
|
|
"""
|
||
|
|
SimpleXMLRPCServer.__init__(self, interface,
|
||
|
|
requestHandler=SimpleXMLRPCRequestHandler,
|
||
|
|
logRequests=False, allow_none=True)
|
||
|
|
self._idlefuns = {}
|
||
|
|
self.host, self.port = self.socket.getsockname()
|
||
|
|
#self.register_introspection_functions()
|
||
|
|
self.commands = BitBakeServerCommands(self)
|
||
|
|
self.autoregister_all_functions(self.commands, "")
|
||
|
|
|
||
|
|
def addcooker(self, cooker):
|
||
|
|
self.cooker = cooker
|
||
|
|
self.commands.cooker = cooker
|
||
|
|
|
||
|
|
def autoregister_all_functions(self, context, prefix):
|
||
|
|
"""
|
||
|
|
Convenience method for registering all functions in the scope
|
||
|
|
of this class that start with a common prefix
|
||
|
|
"""
|
||
|
|
methodlist = inspect.getmembers(context, inspect.ismethod)
|
||
|
|
for name, method in methodlist:
|
||
|
|
if name.startswith(prefix):
|
||
|
|
self.register_function(method, name[len(prefix):])
|
||
|
|
|
||
|
|
def register_idle_function(self, function, data):
|
||
|
|
"""Register a function to be called while the server is idle"""
|
||
|
|
assert hasattr(function, '__call__')
|
||
|
|
self._idlefuns[function] = data
|
||
|
|
|
||
|
|
def serve_forever(self):
|
||
|
|
bb.cooker.server_main(self.cooker, self._serve_forever)
|
||
|
|
|
||
|
|
def _serve_forever(self):
|
||
|
|
"""
|
||
|
|
Serve Requests. Overloaded to honor a quit command
|
||
|
|
"""
|
||
|
|
self.quit = False
|
||
|
|
self.timeout = 0 # Run Idle calls for our first callback
|
||
|
|
while not self.quit:
|
||
|
|
#print "Idle queue length %s" % len(self._idlefuns)
|
||
|
|
self.handle_request()
|
||
|
|
#print "Idle timeout, running idle functions"
|
||
|
|
nextsleep = None
|
||
|
|
for function, data in self._idlefuns.items():
|
||
|
|
try:
|
||
|
|
retval = function(self, data, False)
|
||
|
|
if retval is False:
|
||
|
|
del self._idlefuns[function]
|
||
|
|
elif retval is True:
|
||
|
|
nextsleep = 0
|
||
|
|
elif nextsleep is 0:
|
||
|
|
continue
|
||
|
|
elif nextsleep is None:
|
||
|
|
nextsleep = retval
|
||
|
|
elif retval < nextsleep:
|
||
|
|
nextsleep = retval
|
||
|
|
except SystemExit:
|
||
|
|
raise
|
||
|
|
except:
|
||
|
|
import traceback
|
||
|
|
traceback.print_exc()
|
||
|
|
pass
|
||
|
|
if nextsleep is None and len(self._idlefuns) > 0:
|
||
|
|
nextsleep = 0
|
||
|
|
self.timeout = nextsleep
|
||
|
|
# Tell idle functions we're exiting
|
||
|
|
for function, data in self._idlefuns.items():
|
||
|
|
try:
|
||
|
|
retval = function(self, data, True)
|
||
|
|
except:
|
||
|
|
pass
|
||
|
|
|
||
|
|
self.server_close()
|
||
|
|
return
|
||
|
|
|
||
|
|
class BitbakeServerInfo():
|
||
|
|
def __init__(self, host, port):
|
||
|
|
self.host = host
|
||
|
|
self.port = port
|
||
|
|
|
||
|
|
class BitBakeServerConnection():
|
||
|
|
def __init__(self, serverinfo):
|
||
|
|
self.connection = _create_server(serverinfo.host, serverinfo.port)
|
||
|
|
self.events = uievent.BBUIEventQueue(self.connection)
|
||
|
|
for event in bb.event.ui_queue:
|
||
|
|
self.events.queue_event(event)
|
||
|
|
|
||
|
|
def terminate(self):
|
||
|
|
# Don't wait for server indefinitely
|
||
|
|
import socket
|
||
|
|
socket.setdefaulttimeout(2)
|
||
|
|
try:
|
||
|
|
self.events.system_quit()
|
||
|
|
except:
|
||
|
|
pass
|
||
|
|
try:
|
||
|
|
self.connection.terminateServer()
|
||
|
|
except:
|
||
|
|
pass
|
||
|
|
|
||
|
|
class BitBakeServer(object):
|
||
|
|
def initServer(self):
|
||
|
|
self.server = BitBakeXMLRPCServer()
|
||
|
|
|
||
|
|
def addcooker(self, cooker):
|
||
|
|
self.cooker = cooker
|
||
|
|
self.server.addcooker(cooker)
|
||
|
|
|
||
|
|
def getServerIdleCB(self):
|
||
|
|
return self.server.register_idle_function
|
||
|
|
|
||
|
|
def saveConnectionDetails(self):
|
||
|
|
self.serverinfo = BitbakeServerInfo(self.server.host, self.server.port)
|
||
|
|
|
||
|
|
def detach(self, cooker_logfile):
|
||
|
|
daemonize.createDaemon(self.server.serve_forever, cooker_logfile)
|
||
|
|
del self.cooker
|
||
|
|
del self.server
|
||
|
|
|
||
|
|
def establishConnection(self):
|
||
|
|
self.connection = BitBakeServerConnection(self.serverinfo)
|
||
|
|
return self.connection
|
||
|
|
|
||
|
|
def launchUI(self, uifunc, *args):
|
||
|
|
return uifunc(*args)
|
||
|
|
|
||
|
|
|