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Fixed too-many-open-files ddos

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This commit is contained in:
Marcel Hellkamp 2014-04-20 02:01:49 +02:00
parent 5a4cb85bea
commit ab69b8f86f
2 changed files with 71 additions and 40 deletions
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42
brain.py
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@ -2,6 +2,8 @@ import pixelflut
import os
import time
pixelcount = 0
def guess_IP():
import socket
s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
@ -17,13 +19,14 @@ port = 1234
text = 'P1XELFLUT! v%s (%d)\n' % (
pixelflut.__version__,
os.stat(__file__).st_mtime)
text += 'Connect to %s:%d\n\n' % (IP, port)
text += '>>> HELP\n'
text += '>>> SIZE\n'
text += '>>> TEXT x y text\n'
text += '>>> PX x y [RRGGBB (hex)]\n'
text += '... and more ...\n\n'
text += 'H A C K O N\n'
text += '$ echo "HELP" | netcat %s %d\n' % (IP, port)
text += 'https://github.com/defnull/pixelflut'
help = 'Commands:'
help += '>>> HELP\n'
help += '>>> SIZE\n'
help += '>>> TEXT x y text\n'
help += '>>> PX x y [RRGGBB (hex)]\n'
@on('LOAD')
def callback(c):
@ -41,7 +44,7 @@ def on_resize(c):
@on('CONNECT')
def on_connect(c, client):
pass
#print c.clients.keys()
#print client
@on('KEYDOWN-c')
def on_key_c(c):
@ -60,12 +63,13 @@ def on_key_s(c):
@on('COMMAND-HELP')
def on_help(canvas, client):
client.send(text)
client.send(help)
@on('COMMAND-TEXT')
def on_text(canvas, client, x, y, *words):
x, y = int(x), int(y)
canvas.text(x, y, ' '.join(words), delay=0.1)
text = ' '.join(words)[:200]
canvas.text(x, y, text, delay=0.5)
@on('COMMAND-SIZE')
def on_size(canvas, client):
@ -77,20 +81,24 @@ def on_quit(canvas, client):
@on('COMMAND-PX')
def on_px(canvas, client, x, y, color=None):
global pixelcount
pixelcount += 1
client.last_pixel = time.time()
x, y = int(x), int(y)
if color:
c = int(color, 16)
if c <= 16777215:
if len(color) == 6:
r = (c & 0xff0000) >> 16
g = (c & 0x00ff00) >> 8
b = c & 0x0000ff
a = 0xff
else:
elif len(color) == 8:
r = (c & 0xff000000) >> 24
g = (c & 0x00ff0000) >> 16
b = (c & 0x0000ff00) >> 8
a = c & 0x000000ff
else:
return
canvas.set_pixel(x, y, r, g, b, a)
else:
r,g,b,a = canvas.get_pixel(x,y)
@ -99,10 +107,16 @@ def on_px(canvas, client, x, y, color=None):
last_save = 0
@on('TICK')
def on_tick(canvas, dt):
global last_save
global last_save, pixelcount
canvas.text(5, 5, text, delay=0)
if time.time() > last_save:
last_save = time.time() + 5
canvas.save_as('save/mov_%d.png' % last_save)
canvas.text(5, 5, text, delay=0)
print len(canvas.clients)
canvas.text(5, 200, 'px/s %d' % (pixelcount/5), delay=0)
canvas.text(5, 208, 'Connections %d' % len([c for c in canvas.clients.values() if c.socket]), delay=0)
pixelcount = 0