Update Network Security Notes, Add word of the day script

ghetto/notes/NetworkSecurity/notes.txt

@@ -42,3 +42,25 @@ Game plan:
           connection services, synchronizing transmissions
   Homework:
     Read through remainder of chapter 2, chapter 3 (specifically the Network Infrastruction Devices)
+
+12/01
+
+  Discussion on Gen1 firewalls, (routers) filter based on macs, ips, networks, ports
+  Gen3 firewalls - stateful packet inspecting, much better but can be circumnavigated
+  IDS (&NIDS/HIDS)
+
+  Way too much time spent on binary math (subnetting)
+
+12/06
+
+  Nothing worth noting...
+  Primarily a 3 hour discussion covering how bit math on addresses and routes is used for security.
+
+12/08 - Cancelled
+
+12/13
+
+  Policies, Standards, Governance and Guidelines.  Guidelines are last in line.
+  How important is remote access to your customer?
+  SSL/TLS, -> TLS Ephemeral keys are the way to go
+

python/wod.py

@@ -0,0 +1,87 @@
+#!/usr/bin/env python
+"""
+    Simply display the word of the day, with meaning sourced from merriam-webster
+"""
+
+import os
+import argparse
+from datetime import date
+import requests
+from lxml import html
+
+RED     = "\033[1;33m"
+PURPLE  = "\033[0;35m"
+NC      = "\033[0m"
+
+
+def cache_directory():
+    return os.path.join(os.environ['HOME'],'.wod')
+
+def cache_filename():
+    filename = date.today().strftime('%Y%m%d.cache.html')
+    return os.path.join(cache_directory(),filename)
+
+def is_cached():
+    if not os.path.exists(cache_directory()):
+        os.mkdir(cache_directory(),0755)
+    if os.path.exists(cache_filename()):
+        return True
+    return False
+
+def parse_and_display(content):
+    tree = html.fromstring(content)
+
+    word = tree.xpath('//h1/text()')[0]
+    attribute  = tree.xpath('//span[@class="main-attr"]/text()')[0]
+    syllables  = tree.xpath('//span[@class="word-syllables"]/text()')[0]
+    definition = tree.xpath('//div[@class="wod-definition-container"]/p[1]')[0].text_content().replace(': ','',1).capitalize()
+
+    try:
+        alternate   = tree.xpath('//div[@class="wod-definition-container"]/p[1]/a[1]/text()')[0]
+    except IndexError:
+        alternate   = ""
+
+    print "Word of the Day: %s%s : %s (%s)%s"   % (RED, word, attribute, syllables, NC)
+    if alternate:
+        print "        Meaning: %s%s : %s%s"    % (PURPLE, definition, alternate, NC)
+    else:
+        print "        Meaning: %s%s%s"         % (PURPLE, definition, NC)
+
+def read_cached(filename):
+    return open(filename, "r").read()
+
+def fetch_content():
+    url = 'http://www.merriam-webster.com/word-of-the-day'
+    response = requests.get(url)
+    content = ""
+
+    if response.status_code == 200:
+        content = response.content
+        f = open(cache_filename(),'w')
+        f.write(content)
+        f.close()
+    else:
+        print "No word of the day, %s" % (response.content)
+
+    return content
+
+def main():
+    parser = argparse.ArgumentParser(description="Grab and display the current word of the day")
+    parser.add_argument("--debug", type=str, help="Grab a local file for iterative testing, rather than the actual site content")
+    args = parser.parse_args()
+
+    content = ""
+
+    if args.debug:
+        content = read_cached(args.debug)
+    elif is_cached():
+        content = read_cached(cache_filename())
+    else:
+        content = fetch_content()
+
+    if content:
+        parse_and_display(content)
+        print
+
+if __name__ == "__main__":
+    main()