#!/bin/bash
# By Linc 10/1/2004
# Find the latest script at http://linc.homeunix.org:8080/scripts/bashpodder
# Last revision 07/01/2005 - Many Contributers!
# If you use this and have made improvements or have comments
# drop me an email at linc dot fessenden at gmail dot com
# I'd appreciate it!
# Changes by Chess Griffin 12/09/2005

# Make script crontab friendly:
cd $(dirname $0)

# Use an incoming folder to hold feeds prior to editing the file name
# from James Stone
echo "Creating temp folders..."
incoming="incoming"
rm -rf $incoming
mkdir $incoming

# Delete any temp file:
rm -f temp.log

# If this is the first time running, create the podcast.log
# from Scott Maxwell
if ! [ -e podcast.log ]
       then
       echo "Creating podcast.log file..."
       touch podcast.log
fi

# Read the bp.conf file and wget any url not already in the podcast.log file:
while read podcast datadir
       do
# Skip lines beginning with '#' as comment lines - from Rick Slater
       if echo $podcast | grep '^#' > /dev/null
               then
               continue
       fi
       # Check to make sure datadir is listed on each line; if not, print message.  Or, comment out the exit 1 line to have bashpodder quit if datadir not there.
       if test ! $datadir
               then
               echo "No feed directory specified in bp.conf for the $podcast feed.  Files will be saved in temporary 'incoming' directory but will deleted next time Bashpodder is run.  Please move those files and be sure to edit bp.conf and name a directory for this feed."
               #exit 1;
       fi
       # Check for and create datadir if necessary:
       # (Uses Tony Whitmore's addition to bp.conf where
       # name of directory comes after feed, e.g.,
       # http://www.lugradio.org/episodes.rss LUGRadio)
       if test ! -d $datadir
               then
               echo "Creating $datadir directory to store feeds..."
               mkdir $datadir
       fi
       file=$(wget -q $podcast -O - | xsltproc parse_enclosure.xsl - 2> /dev/null) || file=$(wget -q $podcast -O - | tr '\r' '\n' | tr \' \" | sed -n 's/.*url="\([^"]*\)".*/\1/p')
       for url in $file
       do
       #the realurl fix for dynamically generated feeds (from Huw
       #Lynes and James Stone)
       realurl=`curl -s -I -L -w %{url_effective} --url $url | tail -n 1`
       #echo "Fetching $realurl..."
       #short url (i.e. filename!) from James Stone
       urlss=`echo $realurl|awk -F / '{print $NF}'`
       urls=`echo $urlss|awk -F ? '{print $1}'`
       #echo $urlss|awk -F ? '{print $1}'
       if ! grep "$urls" podcast.log > /dev/null
               then
               # added Christian Daven's wget switches
               echo "Fetching $realurl..."
               wget -q -c -T 2 -P $incoming "$realurl"
               #fix for ?podcast end to recent lugradio feeds
               #from James Stone
               mv $incoming/$urls* $datadir/$urls
               echo $urls >> temp.log
       fi
       done
       # Create an m3u playlist:
       echo "Creating $datadir m3u playlist..."
       ls $datadir | grep -v m3u > $datadir/podcast.m3u
       done < bp.conf

# Move dynamically created log file to permanent log file:
echo "Cleaning up..."
cat podcast.log >> temp.log
sort temp.log | uniq > podcast.log
rm temp.log

echo "Done."