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Reverse the RPC socket connection: Python execution server connects to

Browse source 
Idle client and localhost origin of connection is verified by client.
M PyShell.py
M rpc.py
M run.py
This commit is contained in:
Kurt B. Kaiser 2002-07-26 00:06:42 +00:00
parent db40afaabe
commit b417936d40
3 changed files with 110 additions and 71 deletions
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18
Lib/idlelib/PyShell.py
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@ -193,24 +193,30 @@ class ModifiedInterpreter(InteractiveInterpreter):
def spawn_subprocess(self):
port = 8833
addr = ("localhost", port)
# Spawn the Python execution "server"
w = ['-W' + s for s in sys.warnoptions]
args = [sys.executable] + w + ["-c", "__import__('run').main()",
str(port)]
self.rpcpid = os.spawnv(os.P_NOWAIT, args[0], args)
for i in range(5):
# Idle starts listening for connection on localhost, retry since
# Idle may be restarted before port is available for rebinding
# XXX 25 July 2002 KBK Find out what is causing the delayed release!
for i in range(12):
time.sleep(i)
try:
self.rpcclt = rpc.RPCClient(addr)
break
except socket.error, err:
if i > 3:
print >>sys.__stderr__, "Socket error:", err, "; retry..."
if i < 5:
print>>sys.__stderr__, ". ",
else:
print>>sys.__stderr__,"\nIdle socket error: " + err[1]\
+ ", retrying..."
else:
# XXX Make this a dialog? #GvR
print >>sys.__stderr__, "Can't spawn subprocess!"
# XXX Add Stephen's error msg, resolve the two later... KBK 09Jun02
display_port_binding_error()
return
# Accept the connection from the Python execution server
self.rpcclt.accept()
self.rpcclt.register("stdin", self.tkconsole)
self.rpcclt.register("stdout", self.tkconsole.stdout)
self.rpcclt.register("stderr", self.tkconsole.stderr)