I have people cheating in my game by sending multiple HTTP POST message the game server (php + apache) to gain items. I have fixed that loophole but I want to test if my fix was correct.
I have tried some of the chrome plugin to send POST messages but I cant imitate sending them in the same instant, for example 5 identical POST message all send out less that 100ms to the same IP in between them.
I have a Centos and a windows machine, would appreciate any script or program recommendation.
If you have Python installed (your CentOS machine would), the following will do what you're after using only built-ins. You'll just need to tweak the conn.request line to pass in any body or headers your server requires.
from threading import Thread
import httplib, sys
REQUESTS = 5
def doRequest():
conn = httplib.HTTPConnection("www.google.com")
conn.request("POST", '/some/url')
for i in range(REQUESTS):
t = Thread(target=doRequest)
t.daemon = True
t.start()
Related
i have an app that is being used in many places across my country and it comunicated with a flask server (deployed on apache).
sometimes the reception is not so good in areas of my country. my users sometimes fetching/sending data to the server, but its loading too much time and then its fails/ stuck. i think somthing is lost in the comunication between the app and the server. also, it happend from 6:am in the morning where i guess there are more activity/load on the server
what is the best configuration to apply in this case for the http request:
this is what i use.
requestTimeoutMillis = 15000
connectTimeoutMillis = 10000
socketTimeoutMillis = 10000
further more, if anybody have a suggestion for a protocol that can "hide" this behevior from the user. they tell me that if its stuck, they going to surf on some website like facebook, go back to the app, then try to press the send button again and its working.
thanks
Is there a way to send a login packet to Minecraft server from Python?
Here is what I have right now:
import socket
client = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
addr = ("localhost", 25565)
client.connect(addr)
client.sendall(chr(0x02))
client.sendall(chr(0xFD))
client.sendall(chr(0xCD)) # After sending this line server still don't kick me
client.sendall(chr(0x06)+str(117)+str(70)+str(-46)) # And now server kicks me :-(
client.sendall(chr(0x03)+str("Hello World"))
print client.recv(4096)
client.close()
I'd like to send login packets with a non-premium username (or one that doesn't exist if it is possible)
An alternative would be to use someone-else's python library that does it for you - like quarry or others mentioned here. Also see this related question.
I'm writing a Python program consisting of a server (using Twisted) and a client (without Twisted)
The server part is implemented using Twisted and Twisted's application framework and launched with Twistd to be daemonized.
The client which runs on a different server is a simple Python script without any Twisted stuff (and no application framework specific stuff). It should also be run as a Daemon. FYI, this is the source:
#!/usr/bin/env python
# -*- coding: utf-8 -*-
import socket
import sys
import time
import syslog
SERVER_IP = '127.0.0.1'
SERVER_PORT = 43278
BEAT_PERIOD = 1
class HeartbeatClient:
'''
A Client sending heartbeats to a monitoring server.
'''
def __init__(self, server_ip, port, beat_period):
syslog.syslog( ('Sending heartbeat to IP %s , port %d' +
'\n press Ctrl-C to stop\n')
% (SERVER_IP, SERVER_PORT))
def run(self):
while True:
hbSocket = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
hbSocket.sendto('PyHB', (SERVER_IP, SERVER_PORT))
if __debug__:
print 'Time: %s' % time.ctime()
time.sleep(BEAT_PERIOD)
if __name__ == '__main__':
hbc = HeartbeatClient()
hbc.run()
Now I wonder if I can daemonize the client also with Twistd? Therefore I would have create an Twisted-Application out of the client. But all examples I saw concerning Twisted applications where implementing some Twisted internet-server stuff (like in my case internet.UDPServer...), which my client does not use.
So is it possible to use Twistd to launch my client as a daemon, and what changes do I have to make? Should I rewrite the client to take full use of Twisted? If yes, are there any similar examples out there how to write a Twisted based network client?
Or do I have to use a different daemonize library for the client? There is a good library for that, but I'm trying to be consistent and use the same daemonizing mechanism for client and server.
With Twisted, as a tac file, your HeartbeatClient would look something like this:
from twisted.application.service import Application, Service
from twisted.internet import reactor
from twisted.internet.task import LoopingCall
from twisted.internet.protocol import DatagramProtocol
class HeartbeatClient(Service):
def startService(self):
self._call = LoopingCall(self._heartbeat)
self._call.start(BEAT_PERIOD)
def stopService(self):
self._call.stop()
def _heartbeat(self):
port = reactor.listenUDP(0, DatagramProtocol())
port.write('PyHB', (SERVER_IP, SERVER_PORT))
port.stopListening()
application = Application("PyHB")
HeartbeatClient().setServiceParent(application)
Note the use of reactor.listenUDP, even though you're only sending UDP datagrams, not receiving any. UDP doesn't really have the concept of clients and servers, it only has open ports. All UDP ports can send and receive datagrams. That's why there's only reactor.listenUDP, not reactor.connectUDP.
Aside from that, LoopingCall gives you the loop you want, and putting the code into a custom Service subclass lets you start and stop the loop at the appropriate times.
I am writing a Drupal 7 module which is listening for HTTP POST messages to be sent by a 3rd party remote application. For testing I am sending messages using the Firefox Poster extension.
If I POST the message, the following code fails to place any value in my local vars (I get 'undefined index'):
$transId = urldecode($_POST['c2s_transaction_id']);
However, if I send the message using GET, the vars get populated fine with the following code:
$transId = urldecode($_REQUEST['c2s_transaction_id']);
This is true on both my local WAMP setup and on a shared hosting package.
I have never worked with HTTP POST messages before and have no idea where the problem might be. Could it be Drupal, the web server, or my code? Can anyone suggest how I might resolve this?
Many thanks,
Polly
Drupal removes the $_POST/$_GET in the system, just use $_REQUEST instead.
I have a Pylons app that I'm trying to set up using Apache and FCGI. The Pylons INI file has this in it:
[server:main]
use = egg:Flup#fcgi_thread
host = 0.0.0.0
port = 40100
This used to work on an old CentOS server with Pylons 0.9.7, but now I'm trying to set it up on a new one, running Ubuntu 10.04 and Pylons 1.0. I can connect to the app and load main page, but it's very slow. It then makes AJAX requests and the HTTP responses to those are all messed up: sometimes I'll get half of the response text (eg. half a GUID that the server sent), other times there will be HTTP headers and binary junk in the body of the response. Each response is also delayed by about 15 seconds. The app works fine on the same server when using Paster directly.
I've never seen anything like this before. Any idea what's going on?
In case anyone else runs into this, turning off the gzip module in Apache fixed the problem. I still don't know why it happened.