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New Demo - graph pings using canvas. Ping.py pure ping implementation

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MikeTheWatchGuy 2018-09-16 14:32:37 -04:00
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Demo_Ping_Line_Graph.py Normal file
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import ping
from threading import Thread
import time
import PySimpleGUI as sg
# set coordinate system
canvas_right = 300
canvas_left = 0
canvas_top = 0
canvas_bottom = 300
# define the coordinates you'll use for your graph
x_right = 100
x_left = 0
y_bottom = 0
y_top = 500
# globale used to communicate with thread.. yea yea... it's working fine
g_exit = False
g_response_time = None
def ping_thread(args):
global g_exit, g_response_time
while not g_exit:
g_response_time = ping.quiet_ping('google.com', timeout=1000)
def convert_xy_to_canvas_xy(x_in,y_in):
scale_x = (canvas_right - canvas_left) / (x_right - x_left)
scale_y = (canvas_top - canvas_bottom) / (y_top - y_bottom)
new_x = canvas_left + scale_x * (x_in - x_left)
new_y = canvas_bottom + scale_y * (y_in - y_bottom)
return new_x, new_y
# start ping measurement thread
thread = Thread(target=ping_thread, args=(None,))
thread.start()
layout = [ [sg.T('Ping times to Google.com', font='Any 18')],
[sg.Canvas(size=(canvas_right, canvas_bottom), background_color='white', key='canvas')],
[sg.Quit()]
]
form = sg.FlexForm('Canvas test', grab_anywhere=True)
form.Layout(layout)
form.Finalize()
canvas = form.FindElement('canvas').TKCanvas
prev_response_time = None
i=0
prev_x, prev_y = canvas_left, canvas_bottom
while True:
time.sleep(.2)
button, values = form.ReadNonBlocking()
if button == 'Quit' or values is None:
break
if g_response_time is None or prev_response_time == g_response_time:
continue
new_x, new_y = convert_xy_to_canvas_xy(i, g_response_time[0])
prev_response_time = g_response_time
canvas.create_line(prev_x, prev_y, new_x, new_y, width=1, fill='black')
prev_x, prev_y = new_x, new_y
if i >= x_right:
i = 0
prev_x = prev_y = last_x = last_y = 0
else: i += 1
# tell thread we're done. wait for thread to exit
g_exit = True
thread.join()
exit(69)

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ping.py Normal file
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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""
A pure python ping implementation using raw sockets.
(This is Python 3 port of https://github.com/jedie/python-ping)
(Tested and working with python 2.7, should work with 2.6+)
Note that ICMP messages can only be sent from processes running as root
(in Windows, you must run this script as 'Administrator').
Derived from ping.c distributed in Linux's netkit. That code is
copyright (c) 1989 by The Regents of the University of California.
That code is in turn derived from code written by Mike Muuss of the
US Army Ballistic Research Laboratory in December, 1983 and
placed in the public domain. They have my thanks.
Bugs are naturally mine. I'd be glad to hear about them. There are
certainly word - size dependencies here.
Copyright (c) Matthew Dixon Cowles, <http://www.visi.com/~mdc/>.
Distributable under the terms of the GNU General Public License
version 2. Provided with no warranties of any sort.
Original Version from Matthew Dixon Cowles:
-> ftp://ftp.visi.com/users/mdc/ping.py
Rewrite by Jens Diemer:
-> http://www.python-forum.de/post-69122.html#69122
Rewrite by George Notaras:
-> http://www.g-loaded.eu/2009/10/30/python-ping/
Enhancements by Martin Falatic:
-> http://www.falatic.com/index.php/39/pinging-with-python
Enhancements and fixes by Georgi Kolev:
-> http://github.com/jedie/python-ping/
Bug fix by Andrejs Rozitis:
-> http://github.com/rozitis/python-ping/
Revision history
~~~~~~~~~~~~~~~~
May 1, 2014
-----------
Little modifications by Mohammad Emami <emamirazavi@gmail.com>
- Added Python 3 support. For now this project will just support
python 3.x
- Tested with python 3.3
- version was upped to 0.6
March 19, 2013
--------------
* Fixing bug to prevent divide by 0 during run-time.
January 26, 2012
----------------
* Fixing BUG #4 - competability with python 2.x [tested with 2.7]
- Packet data building is different for 2.x and 3.x.
'cose of the string/bytes difference.
* Fixing BUG #10 - the multiple resolv issue.
- When pinging domain names insted of hosts (for exmaple google.com)
you can get different IP every time you try to resolv it, we should
resolv the host only once and stick to that IP.
* Fixing BUGs #3 #10 - Doing hostname resolv only once.
* Fixing BUG #14 - Removing all 'global' stuff.
- You should not use globul! Its bad for you...and its not thread safe!
* Fix - forcing the use of different times on linux/windows for
more accurate mesurments. (time.time - linux/ time.clock - windows)
* Adding quiet_ping function - This way we'll be able to use this script
as external lib.
* Changing default timeout to 3s. (1second is not enought)
* Switching data syze to packet size. It's easyer for the user to ignore the
fact that the packet headr is 8b and the datasize 64 will make packet with
size 72.
October 12, 2011
--------------
Merged updates from the main project
-> https://github.com/jedie/python-ping
September 12, 2011
--------------
Bugfixes + cleanup by Jens Diemer
Tested with Ubuntu + Windows 7
September 6, 2011
--------------
Cleanup by Martin Falatic. Restored lost comments and docs. Improved
functionality: constant time between pings, internal times consistently
use milliseconds. Clarified annotations (e.g., in the checksum routine).
Using unsigned data in IP & ICMP header pack/unpack unless otherwise
necessary. Signal handling. Ping-style output formatting and stats.
August 3, 2011
--------------
Ported to py3k by Zach Ware. Mostly done by 2to3; also minor changes to
deal with bytes vs. string changes (no more ord() in checksum() because
>source_string< is actually bytes, added .encode() to data in
send_one_ping()). That's about it.
March 11, 2010
--------------
changes by Samuel Stauffer:
- replaced time.clock with default_timer which is set to
time.clock on windows and time.time on other systems.
November 8, 2009
----------------
Improved compatibility with GNU/Linux systems.
Fixes by:
* George Notaras -- http://www.g-loaded.eu
Reported by:
* Chris Hallman -- http://cdhallman.blogspot.com
Changes in this release:
- Re-use time.time() instead of time.clock(). The 2007 implementation
worked only under Microsoft Windows. Failed on GNU/Linux.
time.clock() behaves differently under the two OSes[1].
[1] http://docs.python.org/library/time.html#time.clock
May 30, 2007
------------
little rewrite by Jens Diemer:
- change socket asterisk import to a normal import
- replace time.time() with time.clock()
- delete "return None" (or change to "return" only)
- in checksum() rename "str" to "source_string"
December 4, 2000
----------------
Changed the struct.pack() calls to pack the checksum and ID as
unsigned. My thanks to Jerome Poincheval for the fix.
November 22, 1997
-----------------
Initial hack. Doesn't do much, but rather than try to guess
what features I (or others) will want in the future, I've only
put in what I need now.
December 16, 1997
-----------------
For some reason, the checksum bytes are in the wrong order when
this is run under Solaris 2.X for SPARC but it works right under
Linux x86. Since I don't know just what's wrong, I'll swap the
bytes always and then do an htons().
===========================================================================
IP header info from RFC791
-> http://tools.ietf.org/html/rfc791)
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|Version| IHL |Type of Service| Total Length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Identification |Flags| Fragment Offset |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Time to Live | Protocol | Header Checksum |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Source Address |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Destination Address |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Options | Padding |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
===========================================================================
ICMP Echo / Echo Reply Message header info from RFC792
-> http://tools.ietf.org/html/rfc792
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type | Code | Checksum |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Identifier | Sequence Number |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Data ...
+-+-+-+-+-
===========================================================================
ICMP parameter info:
-> http://www.iana.org/assignments/icmp-parameters/icmp-parameters.xml
===========================================================================
An example of ping's typical output:
PING heise.de (193.99.144.80): 56 data bytes
64 bytes from 193.99.144.80: icmp_seq=0 ttl=240 time=127 ms
64 bytes from 193.99.144.80: icmp_seq=1 ttl=240 time=127 ms
64 bytes from 193.99.144.80: icmp_seq=2 ttl=240 time=126 ms
64 bytes from 193.99.144.80: icmp_seq=3 ttl=240 time=126 ms
64 bytes from 193.99.144.80: icmp_seq=4 ttl=240 time=127 ms
----heise.de PING Statistics----
5 packets transmitted, 5 packets received, 0.0% packet loss
round-trip (ms) min/avg/max/med = 126/127/127/127
===========================================================================
"""
#=============================================================================#
import argparse
import os, sys, socket, struct, select, time, signal
__description__ = 'A pure python ICMP ping implementation using raw sockets.'
if sys.platform == "win32":
# On Windows, the best timer is time.clock()
default_timer = time.clock
else:
# On most other platforms the best timer is time.time()
default_timer = time.time
NUM_PACKETS = 3
PACKET_SIZE = 64
WAIT_TIMEOUT = 3.0
#=============================================================================#
# ICMP parameters
ICMP_ECHOREPLY = 0 # Echo reply (per RFC792)
ICMP_ECHO = 8 # Echo request (per RFC792)
ICMP_MAX_RECV = 2048 # Max size of incoming buffer
MAX_SLEEP = 1000
class MyStats:
thisIP = "0.0.0.0"
pktsSent = 0
pktsRcvd = 0
minTime = 999999999
maxTime = 0
totTime = 0
avrgTime = 0
fracLoss = 1.0
myStats = MyStats # NOT Used globally anymore.
#=============================================================================#
def checksum(source_string):
"""
A port of the functionality of in_cksum() from ping.c
Ideally this would act on the string as a series of 16-bit ints (host
packed), but this works.
Network data is big-endian, hosts are typically little-endian
"""
countTo = (int(len(source_string)/2))*2
sum = 0
count = 0
# Handle bytes in pairs (decoding as short ints)
loByte = 0
hiByte = 0
while count < countTo:
if (sys.byteorder == "little"):
loByte = source_string[count]
hiByte = source_string[count + 1]
else:
loByte = source_string[count + 1]
hiByte = source_string[count]
try: # For Python3
sum = sum + (hiByte * 256 + loByte)
except: # For Python2
sum = sum + (ord(hiByte) * 256 + ord(loByte))
count += 2
# Handle last byte if applicable (odd-number of bytes)
# Endianness should be irrelevant in this case
if countTo < len(source_string): # Check for odd length
loByte = source_string[len(source_string)-1]
try: # For Python3
sum += loByte
except: # For Python2
sum += ord(loByte)
sum &= 0xffffffff # Truncate sum to 32 bits (a variance from ping.c, which
# uses signed ints, but overflow is unlikely in ping)
sum = (sum >> 16) + (sum & 0xffff) # Add high 16 bits to low 16 bits
sum += (sum >> 16) # Add carry from above (if any)
answer = ~sum & 0xffff # Invert and truncate to 16 bits
answer = socket.htons(answer)
return answer
#=============================================================================#
def do_one(myStats, destIP, hostname, timeout, mySeqNumber, packet_size, quiet = False):
"""
Returns either the delay (in ms) or None on timeout.
"""
delay = None
try: # One could use UDP here, but it's obscure
mySocket = socket.socket(socket.AF_INET, socket.SOCK_RAW, socket.getprotobyname("icmp"))
except socket.error as e:
print("failed. (socket error: '%s')" % e.args[1])
raise # raise the original error
my_ID = os.getpid() & 0xFFFF
sentTime = send_one_ping(mySocket, destIP, my_ID, mySeqNumber, packet_size)
if sentTime == None:
mySocket.close()
return delay
myStats.pktsSent += 1
recvTime, dataSize, iphSrcIP, icmpSeqNumber, iphTTL = receive_one_ping(mySocket, my_ID, timeout)
mySocket.close()
if recvTime:
delay = (recvTime-sentTime)*1000
if not quiet:
print("%d bytes from %s: icmp_seq=%d ttl=%d time=%d ms" % (
dataSize, socket.inet_ntoa(struct.pack("!I", iphSrcIP)), icmpSeqNumber, iphTTL, delay)
)
myStats.pktsRcvd += 1
myStats.totTime += delay
if myStats.minTime > delay:
myStats.minTime = delay
if myStats.maxTime < delay:
myStats.maxTime = delay
else:
delay = None
print("Request timed out.")
return delay
#=============================================================================#
def send_one_ping(mySocket, destIP, myID, mySeqNumber, packet_size):
"""
Send one ping to the given >destIP<.
"""
#destIP = socket.gethostbyname(destIP)
# Header is type (8), code (8), checksum (16), id (16), sequence (16)
# (packet_size - 8) - Remove header size from packet size
myChecksum = 0
# Make a dummy heder with a 0 checksum.
header = struct.pack(
"!BBHHH", ICMP_ECHO, 0, myChecksum, myID, mySeqNumber
)
padBytes = []
startVal = 0x42
# 'cose of the string/byte changes in python 2/3 we have
# to build the data differnely for different version
# or it will make packets with unexpected size.
if sys.version[:1] == '2':
bytes = struct.calcsize("d")
data = ((packet_size - 8) - bytes) * "Q"
data = struct.pack("d", default_timer()) + data
else:
for i in range(startVal, startVal + (packet_size-8)):
padBytes += [(i & 0xff)] # Keep chars in the 0-255 range
#data = bytes(padBytes)
data = bytearray(padBytes)
# Calculate the checksum on the data and the dummy header.
myChecksum = checksum(header + data) # Checksum is in network order
# Now that we have the right checksum, we put that in. It's just easier
# to make up a new header than to stuff it into the dummy.
header = struct.pack(
"!BBHHH", ICMP_ECHO, 0, myChecksum, myID, mySeqNumber
)
packet = header + data
sendTime = default_timer()
try:
mySocket.sendto(packet, (destIP, 1)) # Port number is irrelevant for ICMP
except socket.error as e:
print("General failure (%s)" % (e.args[1]))
return
return sendTime
#=============================================================================#
def receive_one_ping(mySocket, myID, timeout):
"""
Receive the ping from the socket. Timeout = in ms
"""
timeLeft = timeout/1000
while True: # Loop while waiting for packet or timeout
startedSelect = default_timer()
whatReady = select.select([mySocket], [], [], timeLeft)
howLongInSelect = (default_timer() - startedSelect)
if whatReady[0] == []: # Timeout
return None, 0, 0, 0, 0
timeReceived = default_timer()
recPacket, addr = mySocket.recvfrom(ICMP_MAX_RECV)
ipHeader = recPacket[:20]
iphVersion, iphTypeOfSvc, iphLength, \
iphID, iphFlags, iphTTL, iphProtocol, \
iphChecksum, iphSrcIP, iphDestIP = struct.unpack(
"!BBHHHBBHII", ipHeader
)
icmpHeader = recPacket[20:28]
icmpType, icmpCode, icmpChecksum, \
icmpPacketID, icmpSeqNumber = struct.unpack(
"!BBHHH", icmpHeader
)
if icmpPacketID == myID: # Our packet
dataSize = len(recPacket) - 28
#print (len(recPacket.encode()))
return timeReceived, (dataSize+8), iphSrcIP, icmpSeqNumber, iphTTL
timeLeft = timeLeft - howLongInSelect
if timeLeft <= 0:
return None, 0, 0, 0, 0
#=============================================================================#
def dump_stats(myStats):
"""
Show stats when pings are done
"""
print("\n----%s PYTHON PING Statistics----" % (myStats.thisIP))
if myStats.pktsSent > 0:
myStats.fracLoss = (myStats.pktsSent - myStats.pktsRcvd)/myStats.pktsSent
print("%d packets transmitted, %d packets received, %0.1f%% packet loss" % (
myStats.pktsSent, myStats.pktsRcvd, 100.0 * myStats.fracLoss
))
if myStats.pktsRcvd > 0:
print("round-trip (ms) min/avg/max = %d/%0.1f/%d" % (
myStats.minTime, myStats.totTime/myStats.pktsRcvd, myStats.maxTime
))
print("")
return
#=============================================================================#
def signal_handler(signum, frame):
"""
Handle exit via signals
"""
dump_stats()
print("\n(Terminated with signal %d)\n" % (signum))
sys.exit(0)
#=============================================================================#
def verbose_ping(hostname, timeout=WAIT_TIMEOUT, count=NUM_PACKETS,
packet_size=PACKET_SIZE, path_finder=False):
"""
Send >count< ping to >destIP< with the given >timeout< and display
the result.
"""
signal.signal(signal.SIGINT, signal_handler) # Handle Ctrl-C
if hasattr(signal, "SIGBREAK"):
# Handle Ctrl-Break e.g. under Windows
signal.signal(signal.SIGBREAK, signal_handler)
myStats = MyStats() # Reset the stats
mySeqNumber = 0 # Starting value
try:
destIP = socket.gethostbyname(hostname)
print("\nPYTHON PING %s (%s): %d data bytes" % (hostname, destIP, packet_size))
except socket.gaierror as e:
print("\nPYTHON PING: Unknown host: %s (%s)" % (hostname, e.args[1]))
print()
return
myStats.thisIP = destIP
for i in range(count):
delay = do_one(myStats, destIP, hostname, timeout, mySeqNumber, packet_size)
if delay == None:
delay = 0
mySeqNumber += 1
# Pause for the remainder of the MAX_SLEEP period (if applicable)
if (MAX_SLEEP > delay):
time.sleep((MAX_SLEEP - delay)/1000)
dump_stats(myStats)
#=============================================================================#
def quiet_ping(hostname, timeout=WAIT_TIMEOUT, count=NUM_PACKETS,
packet_size=PACKET_SIZE, path_finder=False):
"""
Same as verbose_ping, but the results are returned as tuple
"""
myStats = MyStats() # Reset the stats
mySeqNumber = 0 # Starting value
try:
destIP = socket.gethostbyname(hostname)
except socket.gaierror as e:
return False
myStats.thisIP = destIP
# This will send packet that we dont care about 0.5 seconds before it starts
# acrutally pinging. This is needed in big MAN/LAN networks where you sometimes
# loose the first packet. (while the switches find the way... :/ )
if path_finder:
fakeStats = MyStats()
do_one(fakeStats, destIP, hostname, timeout,
mySeqNumber, packet_size, quiet=True)
time.sleep(0.5)
for i in range(count):
delay = do_one(myStats, destIP, hostname, timeout,
mySeqNumber, packet_size, quiet=True)
if delay == None:
delay = 0
mySeqNumber += 1
# Pause for the remainder of the MAX_SLEEP period (if applicable)
if (MAX_SLEEP > delay):
time.sleep((MAX_SLEEP - delay)/1000)
if myStats.pktsSent > 0:
myStats.fracLoss = (myStats.pktsSent - myStats.pktsRcvd)/myStats.pktsSent
if myStats.pktsRcvd > 0:
myStats.avrgTime = myStats.totTime / myStats.pktsRcvd
# return tuple(max_rtt, min_rtt, avrg_rtt, percent_lost)
return myStats.maxTime, myStats.minTime, myStats.avrgTime, myStats.fracLoss
#=============================================================================#
def main():
parser = argparse.ArgumentParser(description=__description__)
parser.add_argument('-q', '--quiet', action='store_true',
help='quiet output')
parser.add_argument('-c', '--count', type=int, default=NUM_PACKETS,
help=('number of packets to be sent '
'(default: %(default)s)'))
parser.add_argument('-W', '--timeout', type=float, default=WAIT_TIMEOUT,
help=('time to wait for a response in seoncds '
'(default: %(default)s)'))
parser.add_argument('-s', '--packet-size', type=int, default=PACKET_SIZE,
help=('number of data bytes to be sent '
'(default: %(default)s)'))
parser. add_argument('destination')
# args = parser.parse_args()
ping = verbose_ping
# if args.quiet:
# ping = quiet_ping
ping('Google.com', timeout=1000)
# ping(args.destination, timeout=args.timeout*1000, count=args.count,
# packet_size=args.packet_size)
if __name__ == '__main__':
main()