Initial commit

netwatch.py

@@ -0,0 +1,76 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+#
+# NetWatch.py -- A health dashboard for your network
+# Copyright 2015 Will Bradley
+#
+
+# Command-line GUI
+import curses
+import curses.wrapper
+# Timer
+from gi.repository import GObject as gobject
+# Pinging
+import subprocess
+# Regex
+import re
+
+# Variables
+host = "8.8.8.8"
+ping_frequency = 5
+ping_log_max_size = 40
+
+class Pinger:
+  ping_log = []
+  paused = False
+  autostart = False
+  icon_height = 22
+
+  def ping(self):
+    ping = subprocess.Popen(
+        ["ping", "-c", "1", host],
+        stdout = subprocess.PIPE,
+        stderr = subprocess.PIPE
+    )
+    out, error = ping.communicate()
+    m = re.search('time=(.*) ms', out)
+    if error or m == None:
+      label = "PING FAIL"
+      self.log_ping(-1)
+    else:
+      latency = "%.2f" % float(m.group(1))
+      label = latency+" ms"
+      self.log_ping(latency)
+    self.stdscr.addstr(2,1,"Ping: "+label, curses.color_pair(2))
+    self.stdscr.refresh()
+    gobject.timeout_add_seconds(self.timeout, self.ping)
+
+  def log_ping(self, value):
+    self.ping_log.append(float(value))
+    #self.update_log_menu()
+    # limit the size of the log
+    if len(self.ping_log) >= ping_log_max_size:
+      # remove the earliest ping, not the latest
+      self.ping_log.pop(0) 
+
+  def __init__(self, stdscr):
+
+    # start the ping process
+    self.stdscr = stdscr
+    self.timeout = ping_frequency
+    self.ping()
+
+
+def main(stdscr):
+
+  curses.init_pair(1, curses.COLOR_RED, curses.COLOR_BLACK);
+  curses.init_pair(2, curses.COLOR_GREEN, curses.COLOR_BLACK);
+
+  stdscr.addstr(1,1,"Hello, world.", curses.color_pair(1))
+  pinger = Pinger(stdscr)
+  stdscr.refresh()
+  stdscr.getch()
+
+if __name__ == '__main__':
+  curses.wrapper(main)
+