DZone Snippets: Madphilosopher's Code Snippets

Python CGI script to display client's IP address

madphilosopher (Darren Paul Griffith) — Tue, 04 Apr 2006 19:54:21 GMT

When run as a cgi script, this will print the client's IP address.



import cgi

import os



print "Content-type: text/html"

print ""



print cgi.escape(os.environ["REMOTE_ADDR"])

sox audio editor settings for companding voice

madphilosopher (Darren Paul Griffith) — Thu, 16 Feb 2006 11:37:58 GMT

I used the following sox audio editor settings to do dynamic compression on voice.



sox in.wav out.wav lowpass 4000 compand 0.1,0.3 -60,-60,-30,-15,-20,-12,-4,-8,-2,-7 -2

Create a single JPG gallery from an image archive

madphilosopher (Darren Paul Griffith) — Wed, 09 Nov 2005 07:05:13 GMT

The following comes from Jason Scott and is posted here with permission under the Creative Commons Attribution-ShareAlike License.

The script expands a zip or rar archive of images, makes thumbnails, and compiles the thumbnails into a single JPG to represent what's in the archive. Requires ImageMagick.

Code:



#!/bin/sh

# GALLERATE: Turn a zip of images into a gallery.

# From Jason Scott. http://ascii.textfiles.com/archives/000137.html

if [ -f "$1" ]

   then

   rm -rf .galleryworld

   echo "[%] Preparting to squat out $1...."

   mkdir .galleryworld

   cd .galleryworld

   unzip -j "../$1"

   unrar e -ep "../$1"

   echo "[%] WHY DOES IT HURT!!!!"

   montage +frame +shadow +label -tile 7 *.JPG *.GIF *.gif *.jpg *.bmp *.png *.PNG *.BMP "../$1.jpg"

   cd ..

   rm -rf .galleryworld

   ls -l "$1.jpg"

  else

  echo "No such file, assmaster."

fi

Usage:



GALLERATE [file]

where [file] is the zip or rar archive of images to be processed.

Filter all URLs from standard input

madphilosopher (Darren Paul Griffith) — Wed, 09 Nov 2005 06:42:16 GMT

Code:

Put the following in a file named url_scrape.py.



#!/usr/bin/env python

'''Prints a list of URLs that are found in standard input.



It will only find URLs between quotes ("" or '') and starting with http://

'''



import re

import sys



# Pattern for fully-qualified URLs:

url_pattern = re.compile('''["']http://[^+]*?['"]''')



# build list of all URLs found in standard input

s = sys.stdin.read()

all = url_pattern.findall(s)



# output all the URLs

for i in all:

    print i.strip('"').strip("'")

Example Usage:



wget -O - http://madphilosopher.ca/ | ./url_scrape.py | sort | uniq

Scan the FreeBSD ports collection and print one-line summary for each port

madphilosopher (Darren Paul Griffith) — Wed, 09 Nov 2005 06:15:49 GMT

The FreeBSD ports collection is a skelton of installable software on a local FreeBSD machine. This small utility lets you scan the collection by category, to find out what software is available in that category. Call the script portinfo.py.

A deeper explanation of the script can be found here.



"""Scans a directory under /usr/ports/ and gives the portname and comment for each port found."""



import os

import os.path

import sys



def findmakefiles(curdir):

    '''goes one level deep under curdir to find and act on the Makefiles.'''



    for name in os.listdir(curdir):

        pathname =  os.path.join(curdir,  name, 'Makefile')  # COMMENTs are found in the Makefiles

        if os.path.isfile(pathname):

            processmakefile(name, pathname)



def processmakefile(name, pathname):

    '''grabs the port's COMMENT from the Makefile.'''

    f = open(pathname)

    data = f.readlines()

    for line in data:

        if line[0:7] == 'COMMENT':

            try:

                comment = line.strip().split('\t')[1]   # most COMMENTs are tab delimited

            except:

                comment = line.strip()                  # some are not, so just print the whole line

            print "%-15s  %s" % (name, comment)



    f.close()



def usage():

    print 'Usage: portinfo.py /usr/ports/[category]'

    sys.exit(1)





if __name__ == '__main__':



    # get directory from command line

    args = sys.argv[1:]

    if len(args) == 1:

        curdir = args[0]

    else:

        usage()

    

##    curdir = '/usr/ports/security/'

 

    # scan this directory   

    if os.path.isdir(curdir):

        findmakefiles(curdir)

    else:

        sys.stdout = sys.stderr

        print "'%s' is not a valid directory." % curdir

        usage()

Shell script to look up words at dictionary.com from the command line

madphilosopher (Darren Paul Griffith) — Wed, 09 Nov 2005 05:54:19 GMT

The following will look up a word on dictionary.com from the command line, where $1 is the word you want to look up, entered in as a parameter on the command line. (Lynx is a text-based browser that handles the html-to-text conversion for us.)



#!/bin/sh 

lynx -dump -nolist -pseudo_inlines                \

  'http://dictionary.reference.com/search?q='$1'&r=67'  \

  | tail -n +13 | less -r