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#!/bin/bash
# Copyright (c) 2011 Josh Schreuder
# http://www.postteenageliving.com
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
# ********************************
# *** OPTIONS
# ********************************
# Set this to 'yes' to save a description (to ~/description.txt) from ngeo page
# ~~ OBSOLETE ~~ GET_DESCRIPTION="yes"
# Set this to the directory you want pictures saved
PICTURES_DIR=~/Pictures
# Set this if you want to use ubuntu's gconf command to change the current Wallpaper
CHANGE_WALLPAPER="no"
# ********************************
# *** FUNCTIONS
# ********************************
function get_page {
echo "Downloading page to find image"
wget http://photography.nationalgeographic.com/photography/photo-of-the-day/ --quiet -O- 2> /dev/null |
grep -m 1 http://images.nationalgeographic.com/.*.jpg -o > /tmp/pic_url
}
function clean_up {
# Clean up
echo "Cleaning up temporary files"
if [ -e "/tmp/pic_url" ]; then
rm /tmp/pic_url
fi
}
# ********************************
# *** MAIN
# ********************************
echo "===================="
echo "== NGEO Wallpaper =="
echo "===================="
# Set date
TODAY=$(date +'%Y%m%d')
# If we don't have the image already today
if [ ! -e $PICTURES_DIR/${TODAY}-ngeo.jpg ]; then
echo "We don't have the picture saved, save it"
get_page
# Got the link to the image
PICURL=`/bin/cat /tmp/pic_url`
echo "Picture URL is: ${PICURL}"
echo "Downloading image"
wget --quiet $PICURL -O $PICTURES_DIR/${TODAY}-ngeo.jpg
if [ $CHANGE_WALLPAPER ]
then
echo "Setting image as wallpaper"
gconftool-2 -t string -s /desktop/gnome/background/picture_filename $PICTURES_DIR/${TODAY}-ngeo.jpg
fi
# Else if we have it already, check if it's the most updated copy
else
get_page
# Got the link to the image
PICURL=`/bin/cat /tmp/pic_url`
echo "Picture URL is: ${PICURL}"
# Get the filesize
SITEFILESIZE=$(wget --spider $PICURL 2>&1 | grep Length | awk '{print $2}')
FILEFILESIZE=$(ls -l $PICTURES_DIR/${TODAY}-ngeo.jpg | awk -F" " '{print $5}')
# If the picture has been updated
if [ $SITEFILESIZE != $FILEFILESIZE ]; then
echo "The picture has been updated, getting updated copy"
rm $PICTURES_DIR/${TODAY}-ngeo.jpg
# Got the link to the image
PICURL=`/bin/cat /tmp/pic_url`
echo "Downloading image"
wget --quiet $PICURL -O $PICTURES_DIR/${TODAY}-ngeo.jpg
if [ $CHANGE_WALLPAPER ]
then
echo "Setting image as wallpaper"
gconftool-2 -t string -s /desktop/gnome/background/picture_filename $PICTURES_DIR/${TODAY}-ngeo.jpg
fi
# If the picture is the same
else
echo "Picture is the same, finishing up"
fi
fi
clean_up
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