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認証部分と録音部分に大別 -aオプションを追加(エリア情報を取得) -oオプションを拡張(ディレクトリ名とファイル名の自由度を高める) オプションを設定する仕様に変更 コマンドをフルパスに変更 rm -fの条件判定を削除
#!/bin/sh
# Original1: https://gist.github.com/875864 saiten / rec_radiko.sh
# Original2: http://backslash.ddo.jp/wordpress/archives/1020 http://backslash.ddo.jp/tools/rec_radiko2.txt
# Install: wget swftools rtmpdump ffmpeg http://d.hatena.ne.jp/zariganitosh/20130120/radiko_recoding_again
PATH=$PATH:/usr/local/bin
VERSION=3.0.0.01
# 使い方
show_usage() {
echo "Usage: $COMMAND [-a] [-o output_path] [-t recording_seconds] station_ID"
echo ' -a Output area info(ex. 'JP13,東京都,tokyo Japan'). No recording.'
echo ' -o Default output_path = $HOME/Downloads/${station_name}_`date +%Y%m%d-%H%M`.flv'
echo ' a/b/c/ = $HOME/Downloads/a/b/c/J-WAVE_20130123-1700.flv'
echo ' a/b/c = $HOME/Downloads/a/b/c.flv'
echo ' /a/b/c/ = /a/b/c/J-WAVE_20130123-1700.flv'
echo ' /a/b/c = /a/b/c.flv'
echo ' ./a/b/c/ = ./a/b/c/J-WAVE_20130123-1700.flv'
echo ' ./a/b/c = ./a/b/c.flv'
echo ' -t Default recording_seconds = 30'
echo ' 60 = 1 minute, 3600 = 1 hour, 0 = go on recording until stopped(control-C)'
}
# 認証
radiko_authorize() {
echo "==== authorize ===="
#
# get player
#
if [ ! -f $playerfile ]; then
echo $playerfile downloading...
wget -q -O $playerfile $playerurl
if [ $? -ne 0 ]; then
echo "failed get player"
exit 1
fi
fi
#
# get keydata (need swftool)
#
if [ ! -f $keyfile ]; then
echo $keyfile extracting...
# swfextract -b 5 $playerfile -o $keyfile <---radiko仕様変更点
swfextract -b 14 $playerfile -o $keyfile
if [ ! -f $keyfile ]; then
echo "failed get keydata"
exit 1
fi
fi
#
# access auth1_fms
#
wget -q \
--header="pragma: no-cache" \
--header="X-Radiko-App: pc_1" \
--header="X-Radiko-App-Version: $VERSION" \
--header="X-Radiko-User: test-stream" \
--header="X-Radiko-Device: pc" \
--post-data='\r\n' \
--no-check-certificate \
--save-headers \
https://radiko.jp/v2/api/auth1_fms -O auth1_fms_$$
if [ $? -ne 0 ]; then
echo "failed auth1 process"
exit 1
fi
#
# get partial key
#
authtoken=`perl -ne 'print $1 if(/x-radiko-authtoken: ([\w-]+)/i)' auth1_fms_$$`
offset=`perl -ne 'print $1 if(/x-radiko-keyoffset: (\d+)/i)' auth1_fms_$$`
length=`perl -ne 'print $1 if(/x-radiko-keylength: (\d+)/i)' auth1_fms_$$`
partialkey=`dd if=$keyfile bs=1 skip=${offset} count=${length} 2> /dev/null | base64`
echo "authtoken: ${authtoken}\n offset: ${offset}\n length: ${length}\n partialkey: $partialkey"
#
# access auth2_fms
#
wget -q \
--header="pragma: no-cache" \
--header="X-Radiko-App: pc_1" \
--header="X-Radiko-App-Version: $VERSION" \
--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 \
https://radiko.jp/v2/api/auth2_fms -O auth2_fms_$$
if [ $? -ne 0 -o ! -f auth2_fms_$$ ]; then
echo "failed auth2 process"
exit 1
fi
echo "authentication success"
areaid=`perl -ne 'print $1 if(/^([^,]+),/i)' auth2_fms_$$`
echo "areaid: $areaid"
}
# 録音
radiko_record() {
echo "==== recording ===="
#
# get stream-url
#
channel_xml=`wget -q "http://radiko.jp/v2/station/stream/${channel}.xml" -O -`
stream_url=`echo $channel_xml | sed 's/^\(<?xml .*\)[Uu][Tt][Ff]8\(.* ?>\)/\1UTF-8\2/' | xpath "//url/item[1]/text()" 2>/dev/null`
stream_url_parts=(`echo ${stream_url} | perl -pe 's!^(.*)://(.*?)/(.*)/(.*?)$/!$1://$2 $3 $4!'`)
#
# get authtoken
#
authtoken=`perl -ne 'print $1 if(/x-radiko-authtoken: ([\w-]+)/i)' auth1_fms_$$`
#
# rtmpdump
#
echo "save as '$output'"
rtmpdump -r ${stream_url_parts[0]} \
--app ${stream_url_parts[1]} \
--playpath ${stream_url_parts[2]} \
-W $playerurl \
-C S:"" -C S:"" -C S:"" -C S:$authtoken \
--live \
--stop "${rectime:=30}" \
--flv "${output}"
}
# 引数解析
COMMAND=`basename $0`
while getopts aho:t: OPTION
do
case $OPTION in
a ) OPTION_a="TRUE" ;;
o ) OPTION_o="TRUE" ; VALUE_o="$OPTARG" ;;
t ) OPTION_t="TRUE" ; VALUE_t="$OPTARG" ;;
* ) show_usage ; exit 1 ;;
esac
done
shift $(($OPTIND - 1)) #残りの非オプションな引数のみが、$@に設定される
if [ $# = 0 -a "$OPTION_a" != "TRUE" ]; then
show_usage ; exit 1
fi
# オプション処理
channel=$1
if [ "$OPTION_o" = "TRUE" ]; then
if echo $VALUE_o|grep -q -v -e '^./\|^/'; then
mkdir -p $HOME/Downloads ; cd $HOME/Downloads
fi
fname_ext="${VALUE_o##*/}"
fname="${fname_ext%.*}"
fext="${fname_ext#$fname}"
wdir="${VALUE_o%/*}"; [ "$fname_ext" = "$wdir" ] && wdir=""
fi
if [ "$OPTION_t" = "TRUE" ]; then
rectime=$VALUE_t
fi
mkdir -p ${wdir:=$HOME/Downloads} ; cd $wdir ; wdir=`pwd`
station_name=`curl -s http://radiko.jp/v2/api/program/station/today?station_id=$channel|xpath "//station/name/text()" 2>/dev/null`
output="${wdir}/${fname:=${station_name}_`date +%Y%m%d-%H%M`}${fext:=.flv}"
# playerurl=http://radiko.jp/player/swf/player_2.0.1.00.swf <---radiko仕様変更点
playerurl=http://radiko.jp/player/swf/player_$VERSION.swf
playerfile=./player.swf
keyfile=./authkey.jpg
if [ "$OPTION_a" = "TRUE" ]; then
radiko_authorize && cat auth2_fms_$$|grep -e '^\w\+'
else
radiko_authorize && radiko_record
fi
ffmpeg -v quiet -y -i "${output}" -acodec copy "${output%.*}.m4a"
rm -f "${output}"
rm -f auth1_fms_$$
rm -f auth2_fms_$$
@xtetsuji

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@xtetsuji xtetsuji commented Jan 19, 2014

素晴らしいスクリプトありがとうございます。この中で使われている xpath コマンドの由来が分からなかったのですが、何由来か分かりますでしょうか。多分何らかのPerlモジュールから入ったものと思うのですが…。Debian系OSであれば dpkg -S $(which xpath) すると調べられると思います。

I thanks to this awesome script! I wonder xpath command using in this script. Where is this command from? If you use Debian like OS, you can look dpkg -S $(which xpath).

@t2psyto

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@t2psyto t2psyto commented Oct 18, 2015

xpath コマンドは libxml-xpath-perl パッケージに含まれているようです。

libxml-xpath-perl: /usr/bin/xpath

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