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# @author Bob Ippolito
#
# Copyright (c) 2005-2006, Bob Ippolito
# Copyright (c) 2007, Linden Research, Inc.
# Copyright (c) 2008, Donovan Preston
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
import sys
from code import InteractiveConsole
from gevent import socket
from gevent.greenlet import Greenlet
try:
sys.ps1
except AttributeError:
sys.ps1 = '>>> '
try:
sys.ps2
except AttributeError:
sys.ps2 = '... '
class SocketConsole(Greenlet):
def __init__(self, desc, locals):
Greenlet.__init__(self)
self.locals = locals
# mangle the socket
self.desc = desc
readline = desc.readline
self.old = {}
self.fixups = {
'softspace': 0,
'isatty': lambda: True,
'flush': lambda: None,
'readline': lambda *a: readline(*a).replace('\r\n', '\n'),
}
for key, value in self.fixups.iteritems():
if hasattr(desc, key):
self.old[key] = getattr(desc, key)
setattr(desc, key, value)
def finalize(self):
# restore the state of the socket
for key in self.fixups:
try:
value = self.old[key]
except KeyError:
delattr(self.desc, key)
else:
setattr(self.desc, key, value)
self.fixups.clear()
self.old.clear()
self.desc = None
def switch(self, *args, **kw):
self.saved = sys.stdin, sys.stderr, sys.stdout
sys.stdin = sys.stdout = sys.stderr = self.desc
Greenlet.switch(self, *args, **kw)
def switch_out(self):
sys.stdin, sys.stderr, sys.stdout = self.saved
def _run(self):
try:
console = InteractiveConsole(self.locals)
console.interact()
finally:
self.switch_out()
self.finalize()
class BackdoorServer(Greenlet):
def __init__(self, address, locals=None):
Greenlet.__init__(self)
if isinstance(address, socket.socket):
self.socket = address
else:
self.socket = socket.tcp_listener(address)
self.locals = locals
def __str__(self):
return '<BackdoorServer on %s>' % (self.socket, )
def _run(self):
while True:
(conn, address) = self.socket.accept()
print 'accepted connection from %s' % (address, )
fileobj = _fileobject(conn)
SocketConsole.spawn(fileobj, self.locals)
def backdoor_server(server, locals=None):
import warnings
warnings.warn("gevent.backdoor_server is deprecated; use BackdoorServer", DeprecationWarning, stacklevel=2)
BackdoorServer.spawn(server, locals).join()
class _fileobject(socket._fileobject):
def write(self, data):
self._sock.sendall(data)
if __name__ == '__main__':
if not sys.argv[1:]:
print 'USAGE: %s PORT' % sys.argv[0]
else:
server = BackdoorServer.spawn(('127.0.0.1', int(sys.argv[1])))
print server
try:
server.join()
except KeyboardInterrupt:
pass
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