簡易Radiko録音スクリプト

rec_radiko.sh

#!/bin/bash
set -x
set -e
#pid=$$
pid="1" # TODO
date=`date '+%Y-%m-%d-%H_%M'`
playerurl=http://radiko.jp/apps/js/flash/myplayer-release.swf
playerfile="player.swf"
keyfile="authkey.png"

#channel=$1
channel="JOAB" # TODO

if [ ! -f $playerfile ]; then
  wget -q -O $playerfile $playerurl
fi

if [ ! -f $keyfile ]; then
  swfextract -b 12 $playerfile -o $keyfile
fi

a1fms="auth1_fms_${pid}"
rm -f $a1fms
wget -q \
     --header="pragma: no-cache" \
     --header="X-Radiko-App: pc_ts" \
     --header="X-Radiko-App-Version: 4.0.0" \
     --header="X-Radiko-User: test-stream" \
     --header="X-Radiko-Device: pc" \
     --post-data='\r\n' \
     --no-check-certificate \
     --save-headers \
     -O $a1fms \
     https://radiko.jp/v2/api/auth1_fms

authtoken=`perl -ne 'print $1 if(/x-radiko-authtoken: ([\w-]+)/i)' $a1fms`
offset=`perl -ne 'print $1 if(/x-radiko-keyoffset: (\d+)/i)' $a1fms`
length=`perl -ne 'print $1 if(/x-radiko-keylength: (\d+)/i)' $a1fms`

partialkey=`dd if=$keyfile bs=1 skip=${offset} count=${length} 2> /dev/null | base64`

a2fms="auth2_fms"
rm -f $a2fms
wget -q \
     --header="pragma: no-cache" \
     --header="X-Radiko-App: pc_ts" \
     --header="X-Radiko-App-Version: 4.0.0" \
     --header="X-Radiko-User: test-stream" \
     --header="X-Radiko-Device: pc" \
     --header="X-Radiko-AuthToken: ${authtoken}" \
     --header="X-Radiko-PartialKey: ${partialkey}" \
     --post-data='\r\n' \
     --no-check-certificate \
     -O $a2fms \
     https://radiko.jp/v2/api/auth2_fms

cxml="${channel}.xml"
rm -f $cxml
wget -q "http://radiko.jp/v2/station/stream/$cxml"
stream_url=`echo "cat /url/item[1]/text()" | xmllint --shell $cxml | tail -2 | head -1`
url_parts=(`echo ${stream_url} | perl -pe 's!^(.*)://(.*?)/(.*)/(.*?)$/!$1://$2 $3 $4!'`)

rtmpdump -q \
         -r ${url_parts[0]} \
         --app ${url_parts[1]} \
         --playpath ${url_parts[2]} \
         -W $playerurl \
         -C S:"" -C S:"" -C S:"" -C S:$authtoken \
         --live \
         --flv "${channel}_${date}"