sugarlabs/sugar-toolkit-gtk3
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Merge branch 'master' of git+ssh://dev.laptop.org/git/sugar

Browse Source
This commit is contained in:
Simon McVittie 2007-05-24 19:05:58 +01:00
commit cb84d5f8fd
3 changed files with 537 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
sugar/activity/activityfactory.py
View File

@ -23,7 +23,6 @@ import gobject
import gtk
from sugar.presence import presenceservice
from sugar.activity import bundleregistry
from sugar.activity.activityhandle import ActivityHandle
from sugar import util
@ -75,9 +74,7 @@ class ActivityCreationHandler(gobject.GObject):
def __init__(self, service_name, activity_handle):
"""Initialise the handler
service_name -- used to retrieve the activity bundle
from the global BundleRegistry. This is what
determines what activity will be run.
service_name -- the service name of the bundle factory
activity_handle -- stores the values which are to
be passed to the service to uniquely identify
the activity to be created and the sharing
@ -100,16 +97,16 @@ class ActivityCreationHandler(gobject.GObject):
self._service_name = service_name
self._activity_handle = activity_handle
registry = bundleregistry.get_registry()
bundle = registry.get_bundle(service_name)
bus = dbus.SessionBus()
proxy_obj = bus.get_object(service_name, bundle.get_object_path(), follow_name_owner_changes=True)
object_path = '/' + service_name.replace('.', '/')
proxy_obj = bus.get_object(service_name, object_path,
follow_name_owner_changes=True)
factory = dbus.Interface(proxy_obj, _ACTIVITY_FACTORY_INTERFACE)
factory.create(self._activity_handle.get_dict(),
reply_handler=self._reply_handler,
error_handler=self._error_handler)
def get_activity_id(self):
"""Retrieve the unique identity for this activity"""
return self._activity_handle.activity_id

9
sugar/activity/bundle.py
View File

@ -42,6 +42,7 @@ class Bundle:
self._name = None
self._icon = None
self._service_name = None
self._mime_types = None
self._show_launcher = True
self._valid = True
self._path = path
@ -91,6 +92,10 @@ class Bundle:
self._valid = False
logging.error('%s must specify exec or class' % self._path)
if cp.has_option(section, 'mime_types'):
mime_list = cp.get(section, 'show_launcher')
self._mime_types = mime_list.strip(';')
if cp.has_option(section, 'show_launcher'):
if cp.get(section, 'show_launcher') == 'no':
self._show_launcher = False
@ -166,6 +171,10 @@ class Bundle:
"""Get the main Activity class"""
return self._class
def get_mime_types(self):
"""Get the MIME types supported by the activity"""
return self._mime_types
def get_show_launcher(self):
"""Get whether there should be a visible launcher for the activity"""
return self._show_launcher

523
sugar/network.py Normal file
View File

@ -0,0 +1,523 @@
# Copyright (C) 2006, Red Hat, Inc.
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2 of the License, or (at your option) any later version.
#
# This library 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
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the
# Free Software Foundation, Inc., 59 Temple Place - Suite 330,
# Boston, MA 02111-1307, USA.
# pylint: disable-msg = W0221
import socket
import os
import threading
import traceback
import xmlrpclib
import sys
import httplib
import urllib
import fcntl
import gobject
import SimpleXMLRPCServer
import SimpleHTTPServer
import SocketServer
__authinfos = {}
def _add_authinfo(authinfo):
__authinfos[threading.currentThread()] = authinfo
def get_authinfo():
return __authinfos.get(threading.currentThread())
def _del_authinfo():
del __authinfos[threading.currentThread()]
class GlibTCPServer(SocketServer.TCPServer):
"""GlibTCPServer
Integrate socket accept into glib mainloop.
"""
allow_reuse_address = True
request_queue_size = 20
def __init__(self, server_address, RequestHandlerClass):
SocketServer.TCPServer.__init__(self, server_address, RequestHandlerClass)
self.socket.setblocking(0) # Set nonblocking
# Watch the listener socket for data
gobject.io_add_watch(self.socket, gobject.IO_IN, self._handle_accept)
def _handle_accept(self, source, condition):
"""Process incoming data on the server's socket by doing an accept()
via handle_request()."""
if not (condition & gobject.IO_IN):
return True
self.handle_request()
return True
class ChunkedGlibHTTPRequestHandler(SimpleHTTPServer.SimpleHTTPRequestHandler):
"""RequestHandler class that integrates with Glib mainloop. It writes
the specified file to the client in chunks, returning control to the
mainloop between chunks.
"""
CHUNK_SIZE = 4096
def __init__(self, request, client_address, server):
self._file = None
self._srcid = 0
SimpleHTTPServer.SimpleHTTPRequestHandler.__init__(self, request, client_address, server)
def log_request(self, code='-', size='-'):
pass
def do_GET(self):
"""Serve a GET request."""
self._file = self.send_head()
if self._file:
self._srcid = gobject.io_add_watch(self.wfile, gobject.IO_OUT | gobject.IO_ERR, self._send_next_chunk)
else:
self._file.close()
self._cleanup()
def _send_next_chunk(self, source, condition):
if condition & gobject.IO_ERR:
self._cleanup()
return False
if not (condition & gobject.IO_OUT):
self._cleanup()
return False
data = self._file.read(self.CHUNK_SIZE)
count = os.write(self.wfile.fileno(), data)
if count != len(data) or len(data) != self.CHUNK_SIZE:
self._cleanup()
return False
return True
def _cleanup(self):
if self._file:
self._file.close()
if self._srcid > 0:
gobject.source_remove(self._srcid)
self._srcid = 0
if not self.wfile.closed:
self.wfile.flush()
self.wfile.close()
self.rfile.close()
def finish(self):
"""Close the sockets when we're done, not before"""
pass
def send_head(self):
"""Common code for GET and HEAD commands.
This sends the response code and MIME headers.
Return value is either a file object (which has to be copied
to the outputfile by the caller unless the command was HEAD,
and must be closed by the caller under all circumstances), or
None, in which case the caller has nothing further to do.
** [dcbw] modified to send Content-disposition filename too
"""
path = self.translate_path(self.path)
f = None
if os.path.isdir(path):
for index in "index.html", "index.htm":
index = os.path.join(path, index)
if os.path.exists(index):
path = index
break
else:
return self.list_directory(path)
ctype = self.guess_type(path)
try:
# Always read in binary mode. Opening files in text mode may cause
# newline translations, making the actual size of the content
# transmitted *less* than the content-length!
f = open(path, 'rb')
except IOError:
self.send_error(404, "File not found")
return None
self.send_response(200)
self.send_header("Content-type", ctype)
self.send_header("Content-Length", str(os.fstat(f.fileno())[6]))
self.send_header("Content-Disposition", 'attachment; filename="%s"' % os.path.basename(path))
self.end_headers()
return f
class GlibURLDownloader(gobject.GObject):
"""Grabs a URL in chunks, returning to the mainloop after each chunk"""
__gsignals__ = {
'finished': (gobject.SIGNAL_RUN_FIRST, gobject.TYPE_NONE,
([gobject.TYPE_PYOBJECT, gobject.TYPE_PYOBJECT])),
'error': (gobject.SIGNAL_RUN_FIRST, gobject.TYPE_NONE,
([gobject.TYPE_PYOBJECT]))
}
CHUNK_SIZE = 4096
def __init__(self, url, destdir=None):
self._url = url
if not destdir:
destdir = "/tmp"
self._destdir = destdir
self._srcid = 0
self._fname = None
self._outf = None
gobject.GObject.__init__(self)
def start(self):
self._info = urllib.urlopen(self._url)
self._suggested_fname = self._get_filename_from_headers(self._info.headers)
import tempfile
garbage, path = urllib.splittype(self._url)
garbage, path = urllib.splithost(path or "")
path, garbage = urllib.splitquery(path or "")
path, garbage = urllib.splitattr(path or "")
suffix = os.path.splitext(path)[1]
(self._outf, self._fname) = tempfile.mkstemp(suffix=suffix, dir=self._destdir)
fcntl.fcntl(self._info.fp.fileno(), fcntl.F_SETFD, os.O_NDELAY)
self._srcid = gobject.io_add_watch(self._info.fp.fileno(),
gobject.IO_IN | gobject.IO_ERR,
self._read_next_chunk)
def _get_filename_from_headers(self, headers):
if not headers.has_key("Content-Disposition"):
return None
ftag = "filename="
data = headers["Content-Disposition"]
fidx = data.find(ftag)
if fidx < 0:
return None
fname = data[fidx+len(ftag):]
if fname[0] == '"' or fname[0] == "'":
fname = fname[1:]
if fname[len(fname)-1] == '"' or fname[len(fname)-1] == "'":
fname = fname[:len(fname)-1]
return fname
def _read_next_chunk(self, source, condition):
if condition & gobject.IO_ERR:
self.cleanup()
os.remove(self._fname)
self.emit("error", "Error downloading file.")
return False
elif not (condition & gobject.IO_IN):
# shouldn't get here, but...
return True
try:
data = self._info.fp.read(self.CHUNK_SIZE)
count = os.write(self._outf, data)
if len(data) < self.CHUNK_SIZE:
self.cleanup()
self.emit("finished", self._fname, self._suggested_fname)
return False
if count < len(data):
self.cleanup()
self.emit("error", "Error writing to download file.")
return False
except Exception, err:
self.cleanup()
self.emit("error", "Error downloading file: %s" % err)
return False
return True
def cleanup(self):
if self._srcid > 0:
gobject.source_remove(self._srcid)
self._srcid = 0
del self._info
self._info = None
os.close(self._outf)
self._outf = None
class GlibXMLRPCRequestHandler(SimpleXMLRPCServer.SimpleXMLRPCRequestHandler):
""" GlibXMLRPCRequestHandler
The stock SimpleXMLRPCRequestHandler and server don't allow any way to pass
the client's address and/or SSL certificate into the function that actually
_processes_ the request. So we have to store it in a thread-indexed dict.
"""
def do_POST(self):
_add_authinfo(self.client_address)
try:
SimpleXMLRPCServer.SimpleXMLRPCRequestHandler.do_POST(self)
except socket.timeout:
pass
except socket.error, e:
print "Error (%s): socket error - '%s'" % (self.client_address, e)
except:
print "Error while processing POST:"
traceback.print_exc()
_del_authinfo()
class GlibXMLRPCServer(GlibTCPServer, SimpleXMLRPCServer.SimpleXMLRPCDispatcher):
"""GlibXMLRPCServer
Use nonblocking sockets and handle the accept via glib rather than
blocking on accept().
"""
def __init__(self, addr, requestHandler=GlibXMLRPCRequestHandler,
logRequests=0, allow_none=False):
self.logRequests = logRequests
if sys.version_info[:3] >= (2, 5, 0):
SimpleXMLRPCServer.SimpleXMLRPCDispatcher.__init__(self, allow_none, encoding="utf-8")
else:
SimpleXMLRPCServer.SimpleXMLRPCDispatcher.__init__(self)
GlibTCPServer.__init__(self, addr, requestHandler)
def _marshaled_dispatch(self, data, dispatch_method = None):
"""Dispatches an XML-RPC method from marshalled (XML) data.
XML-RPC methods are dispatched from the marshalled (XML) data
using the _dispatch method and the result is returned as
marshalled data. For backwards compatibility, a dispatch
function can be provided as an argument (see comment in
SimpleXMLRPCRequestHandler.do_POST) but overriding the
existing method through subclassing is the prefered means
of changing method dispatch behavior.
"""
params, method = xmlrpclib.loads(data)
# generate response
try:
if dispatch_method is not None:
response = dispatch_method(method, params)
else:
response = self._dispatch(method, params)
# wrap response in a singleton tuple
response = (response,)
response = xmlrpclib.dumps(response, methodresponse=1)
except xmlrpclib.Fault, fault:
response = xmlrpclib.dumps(fault)
except:
print "Exception while processing request:"
traceback.print_exc()
# report exception back to server
response = xmlrpclib.dumps(
xmlrpclib.Fault(1, "%s:%s" % (sys.exc_type, sys.exc_value))
)
return response
class GlibHTTP(httplib.HTTP):
"""Subclass HTTP so we can return it's connection class' socket."""
def connect(self, host=None, port=None):
httplib.HTTP.connect(self, host, port)
self._conn.sock.setblocking(0)
class GlibXMLRPCTransport(xmlrpclib.Transport):
"""Integrate the request with the glib mainloop rather than blocking."""
##
# Connect to server.
#
# @param host Target host.
# @return A connection handle.
def __init__(self, use_datetime=0):
if sys.version_info[:3] >= (2, 5, 0):
xmlrpclib.Transport.__init__(self, use_datetime)
def make_connection(self, host):
"""Use our own connection object so we can get its socket."""
# create a HTTP connection object from a host descriptor
host, extra_headers, x509 = self.get_host_info(host)
return GlibHTTP(host)
##
# Send a complete request, and parse the response.
#
# @param host Target host.
# @param handler Target PRC handler.
# @param request_body XML-RPC request body.
# @param verbose Debugging flag.
# @return Parsed response.
def start_request(self, host, handler, request_body, verbose=0, reply_handler=None, error_handler=None, user_data=None):
"""Do the first half of the request by sending data to the remote
server. The bottom half bits get run when the remote server's response
actually comes back."""
# issue XML-RPC request
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)
# Schedule a GIOWatch so we don't block waiting for the response
gobject.io_add_watch(h._conn.sock, gobject.IO_IN, self._finish_request,
h, host, handler, verbose, reply_handler, error_handler, user_data)
def _finish_request(self, source, condition, h, host, handler, verbose, reply_handler=None, error_handler=None, user_data=None):
"""Parse and return response when the remote server actually returns it."""
if not (condition & gobject.IO_IN):
return True
try:
errcode, errmsg, headers = h.getreply()
except socket.error, err:
if err[0] != 104:
raise socket.error(err)
else:
if error_handler:
gobject.idle_add(error_handler, err, user_data)
return False
if errcode != 200:
raise xmlrpclib.ProtocolError(host + handler, errcode, errmsg, headers)
self.verbose = verbose
response = self._parse_response(h.getfile(), h._conn.sock)
if reply_handler:
# Coerce to a list so we can append user data
response = response[0]
if not isinstance(response, list):
response = [response]
response.append(user_data)
gobject.idle_add(reply_handler, *response)
return False
class _Method:
"""Right, so python people thought it would be funny to make this
class private to xmlrpclib.py..."""
# some magic to bind an XML-RPC method to an RPC server.
# supports "nested" methods (e.g. examples.getStateName)
def __init__(self, send, name):
self.__send = send
self.__name = name
def __getattr__(self, name):
return _Method(self.__send, "%s.%s" % (self.__name, name))
def __call__(self, *args, **kwargs):
return self.__send(self.__name, *args, **kwargs)
class GlibServerProxy(xmlrpclib.ServerProxy):
"""Subclass xmlrpclib.ServerProxy so we can run the XML-RPC request
in two parts, integrated with the glib mainloop, such that we don't
block anywhere.
Using this object is somewhat special; it requires more arguments to each
XML-RPC request call than the normal xmlrpclib.ServerProxy object:
client = GlibServerProxy("http://127.0.0.1:8888")
user_data = "bar"
xmlrpc_arg1 = "test"
xmlrpc_arg2 = "foo"
client.test(xmlrpc_test_cb, user_data, xmlrpc_arg1, xmlrpc_arg2)
Here, 'xmlrpc_test_cb' is the callback function, which has the following
signature:
def xmlrpc_test_cb(result_status, response, user_data=None):
...
"""
def __init__(self, uri, encoding=None, verbose=0, allow_none=0):
self._transport = GlibXMLRPCTransport()
self._encoding = encoding
self._verbose = verbose
self._allow_none = allow_none
xmlrpclib.ServerProxy.__init__(self, uri, self._transport, encoding, verbose, allow_none)
# get the url
import urllib
urltype, uri = urllib.splittype(uri)
if urltype not in ("http", "https"):
raise IOError, "unsupported XML-RPC protocol"
self._host, self._handler = urllib.splithost(uri)
if not self._handler:
self._handler = "/RPC2"
def __request(self, methodname, *args, **kwargs):
"""Call the method on the remote server. We just start the request here
and the transport itself takes care of scheduling the response callback
when the remote server returns the response. We don't want to block anywhere."""
request = xmlrpclib.dumps(args, methodname, encoding=self._encoding,
allow_none=self._allow_none)
reply_hdl = kwargs.get("reply_handler")
err_hdl = kwargs.get("error_handler")
udata = kwargs.get("user_data")
try:
response = self._transport.start_request(
self._host,
self._handler,
request,
verbose=self._verbose,
reply_handler=reply_hdl,
error_handler=err_hdl,
user_data=udata
)
except socket.error, exc:
if err_hdl:
gobject.idle_add(err_hdl, exc, udata)
def __getattr__(self, name):
# magic method dispatcher
return _Method(self.__request, name)
class Test(object):
def test(self, arg1, arg2):
print "Request got %s, %s" % (arg1, arg2)
return "success", "bork"
def xmlrpc_success_cb(response, resp2, loop):
print "Response was %s %s" % (response, resp2)
loop.quit()
def xmlrpc_error_cb(err, loop):
print "Error: %s" % err
loop.quit()
def xmlrpc_test(loop):
client = GlibServerProxy("http://127.0.0.1:8888")
client.test("bar", "baz",
reply_handler=xmlrpc_success_cb,
error_handler=xmlrpc_error_cb,
user_data=loop)
def main():
loop = gobject.MainLoop()
server = GlibXMLRPCServer(("", 8888))
inst = Test()
server.register_instance(inst)
gobject.idle_add(xmlrpc_test, loop)
try:
loop.run()
except KeyboardInterrupt:
print 'Ctrl+C pressed, exiting...'
print "Done."
if __name__ == "__main__":
main()