Created
April 9, 2014 19:58
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# Shamelessly stolen from the Twisted site | |
from twisted.internet import protocol, reactor, defer | |
from twisted.protocols.basic import LineReceiver | |
from twisted.internet.endpoints import TCP4ServerEndpoint | |
import json | |
class JsonEchoServer(LineReceiver): | |
""" | |
Implements the server-side mechanisms | |
""" | |
def __init__(self, *args): | |
# LineReceiver.__init__(self, *args) | |
self.acks = {} | |
self.msgid = 0 | |
def connectionMade(self): | |
print "Connected!" | |
msg = {"from": "server", | |
"message": "connected", | |
"id": self.msgid} | |
self.sendLine(json.dumps(msg)) | |
self.acks[self.msgid] = msg | |
self.msgid += 1 | |
def lineReceived(self, line): | |
"""Receives a line from our remote""" | |
print "Line!" | |
m = None | |
try: | |
m = json.loads(line) | |
except json.JSONDecodeError as e: | |
self.sendLine(json.dumps( | |
{ | |
"from": "server", | |
"message": "json parse error {error}".format(e)} | |
)) | |
print "received non-json-decodable string" | |
return | |
self.sendLine(json.dumps({"acknowledge": m["id"]})) | |
self.sendLine(json.dumps( | |
{ "from": "EchoServer", "message": "%s said '%s'" % ( m["from"], m["message"] ) } | |
) | |
) | |
# if "message" in m: | |
# self.sendLine(json.dumps( | |
# { "from": "EchoServer", "message": "%s said '%s'" % ( m["from"], m["message"] ) } | |
# )) | |
# elif "acknowledge" in m: | |
# if m["acknowledge"] not in self.acks: | |
# self.sendLine( | |
# json.dumps({"from": "EchoServer", "message": "invalid ID to ack" })) | |
# del self.acks[m["acknowledge"]] | |
# print "{id} acknowledged".format(id=m["acknowledge"]) | |
class EchoFactory(protocol.Factory): | |
def buildProtocol |
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