#!/usr/bin/env python
#
# Copyright (c) 2009, devdoodles
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
#
#     * Redistributions of source code must retain the above copyright
#       notice, this list of conditions and the following disclaimer.
#
#     * Redistributions in binary form must reproduce the above
#       copyright notice, this list of conditions and the following
#       disclaimer in the documentation and/or other materials provided
#       with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# &#34;AS IS&#34; AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

import httplib
import os
import socket
import sys
import time
import urlparse

request_timeout = os.getenv(&#39;request_timeout&#39;) or 10
socket.setdefaulttimeout(float(request_timeout))

def load_urls():
    urls = []
    n = 1
    while 1:
        url = os.getenv(&#34;url%s_url&#34; % n)
        if not url:
            break
        data = { &#39;url&#39;: url }
        for v in (&#39;name&#39;, &#39;label&#39;, &#39;timeout&#39;, &#39;warning&#39;, &#39;critical&#39;):
            data[v] = os.getenv(&#34;url%s_%s&#34; % (n, v))
        urls.append(data)
        n += 1
    return urls

def do_request(dest, host, path, scheme):
    if scheme == &#39;https&#39;:
        conn = httplib.HTTPConnection(dest)
    else:
        conn = httplib.HTTPConnection(dest)
    conn.request(&#39;GET&#39;, path, headers={ &#39;Host&#39;: host })
    resp = conn.getresponse()
    data = resp.read()
    conn.close()
    return resp.status

urls = load_urls()

if len(sys.argv) &gt; 1 and sys.argv[1] == &#39;config&#39;:
    title = os.getenv(&#34;graph_title&#34;) or &#34;Response time&#34;
    category = os.getenv(&#34;graph_category&#34;)
    draw = os.getenv(&#34;draw&#34;)
    if category: print &#34;graph_category %s&#34; % (category,)
    print &#34;graph_title %s&#34; % (title,)
    print &#34;graph_vlabel Time (seconds)&#34;
    print &#34;graph_args --lower-limit 0&#34;
    for url in urls:
        if draw: print &#34;%s.draw %s&#34; % (url[&#39;name&#39;], draw)
        for v in (&#39;label&#39;, &#39;warning&#39;, &#39;critical&#39;):
            if url[v]: print &#34;%s.%s %s&#34; % (url[&#39;name&#39;], v, url[v])
    sys.exit(0)

for url in urls:
    o = urlparse.urlparse(url[&#39;url&#39;])
    try:
        t1 = time.time()
        status = do_request(o.netloc, o.hostname, o.path, o.scheme)
        t2 = time.time()
        if status == 200:
            print &#34;%s.value %.2f&#34; % (url[&#39;name&#39;], t2 - t1)
        else:
            print &#34;%s.value U&#34; % (url[&#39;name&#39;],)
    except socket.timeout:
        print &#34;%s.value %s&#34; % (url[&#39;name&#39;], request_timeout)
    except:
        print &#34;%s.value U&#34; % (url[&#39;name&#39;],)