ソースを整理して通常版とOpenWrt版を統合

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この記事は古いです

ここを開いて一番上に出てきた記事に最新版が貼ってあります、たぶん
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だいぶソースを整理した
wgetとcurlの切り替え対応
OpenWrtではiconvが無いので投稿のみ
一時ファイルはrep.sedだけになりました
一度目の起動時にPIN等の取得を試みます

タイムライン表示

$ shtter.sh

投稿

$ shtter.sh update "foobar"

Fedora(12 x86_64)とOpenWrt(KAMIKAZE 8.09.2)で動作を確認しています
Fedoraで使用する場合はwgetをインストールしてください
OpenWrtで使用する場合はopenssl-utilとcurlをインストールして
HTTP_GETとHTTP_POSTをcurlに切り替えてください


使ってるコマンド (全部あるか確認してください)

dd md5sum cut date echo sed grep sort uniq hexdump rm printf iconv openssl read wget/curl

shtter.sh (last update 2010/05/22)
This script lisence is GPL.

#!/bin/sh

CKEY="U3DhP7CpPx0bNCzdAFShg"
CSECRET="eAQ13OTo7BhroXQc5dA5oOqEuXhAf7yABVKpkbR7so"
AKEY=""
ASECRET=""

HTTP_GET="wget -q -O -"
HTTP_POST="wget -q -O - --post-data"
#HTTP_GET="curl -s"
#HTTP_POST="curl -s --data"

TMPDIR="/tmp"

PREFIX=""
SUFFIX=" http://bit.ly/dsKezn #shtter"

GenerateNonce()
{
dd if=/dev/urandom bs=1024 count=1 2>/dev/null | md5sum | cut -c1-32
}

GetTimeStamp()
{
date +%s
}

Encode()
{
echo "$@" | sed 's/./\0\n/g' | grep '[^-._~0-9a-zA-Z]' | sort | uniq | while read l
do
 if [ "$l" == "" ]; then l=" "; fi
 
 HEX="`echo -n \"$l\" | hexdump -e '16/1 "%02X" "\n"'`"
 
 if [ "$l" == "/" ]; then l="\/"; fi
 echo "s/$l/$HEX"
done | sed 's/ *$//; s/\([0-9A-Z]\{2\}\)/%\1/g; s/$/\/g/' >"$TMPDIR/rep.sed"

echo "$@" | sed -f "$TMPDIR/rep.sed"

rm "$TMPDIR/rep.sed"
}

Decode()
{
HEX="`echo -e "$@" | sed 's/&#[0-9]\+;/\n\0\n/g' | sed '/^&#[0-9]\+;$/!d; s/[&#;]//g' | sort | uniq`"
HEX="`echo -e \"$HEX\" | while read l; do echo -n \"$l\" | hexdump -e '8/1 "%02x00"'; printf '%04x\n' "$l"; done`"
HEX="`echo -e \"$HEX\" | sed 's/  00//g; s/^/73002f0026002300/; s/\(..\)\(..\)$/3b002f00\2\12f0067000a00/'`"
HEX="`echo $HEX | sed 's/ //g; s/../\\\x\0/g'`"
printf "$HEX" | iconv -f UTF-16 -t UTF-8 >"$TMPDIR/rep.sed"

echo -e "$@" | sed -f "$TMPDIR/rep.sed"

rm "$TMPDIR/rep.sed"
}

GenerateHash()
{
EURL="`Encode $2`"
EPARAM="`Encode $3`"
QUERY="$1&$EURL&$EPARAM"

HASH="`echo -n \"$QUERY\" | openssl sha1 -hmac \"$CSECRET&$ASECRET\" -binary | openssl base64`"
Encode "$HASH"
}

GetRequestToken()
{
URL="http://twitter.com/oauth/request_token"
PARAM="oauth_consumer_key=$CKEY&oauth_nonce=`GenerateNonce`&oauth_signature_method=HMAC-SHA1&oauth_timestamp=`GetTimeStamp`&oauth_token=&oauth_version=1.0"
HASH="`GenerateHash \"GET\" \"$URL\" \"$PARAM\"`"

RTOKEN="`$HTTP_GET \"$URL?$PARAM&oauth_signature=$HASH\"`"
if [ "$RTOKEN" == "" ]; then
 echo "can not get request token" >&2
 exit 1
fi

RKEY="`echo \"$RTOKEN\" | sed 's/.*oauth_token=\([^&]*\).*/\1/'`"
RSECRET="`echo \"$RTOKEN\" | sed 's/.*oauth_token_secret=\([^&]*\).*/\1/'`"

echo "open this url in your browsser and input pin" >&2
echo "http://twitter.com/oauth/authorize?oauth_token=$RKEY" >&2
echo -n "pin > " >&2
read PIN

echo "$RKEY $RSECRET $PIN"
}

GetAccessToken()
{
RKEY="$1"
RSECRET="$2"
PIN="$3"

URL="http://twitter.com/oauth/access_token"
PARAM="oauth_consumer_key=$CKEY&oauth_nonce=`GenerateNonce`&oauth_signature_method=HMAC-SHA1&oauth_timestamp=`GetTimeStamp`&oauth_token=$RKEY&oauth_verifier=$PIN&oauth_version=1.0"
HASH="`GenerateHash \"GET\" \"$URL\" \"$PARAM\"`"

ATOKEN="`$HTTP_GET \"$URL?$PARAM&oauth_signature=$HASH\"`"
if [ "$ATOKEN" == "" ]; then
 echo "can not get access token" >&2
 exit 1
fi

AKEY="`echo $ATOKEN | sed 's/.*oauth_token=\([^&]*\).*/\1/'`"
ASECRET="`echo $ATOKEN | sed 's/.*oauth_token_secret=\([^&]*\).*/\1/'`"

sed -i "1,/^AKEY/ s/^\(AKEY=\).*/\1\"$AKEY\"/" "$0"
sed -i "1,/^ASECRET/ s/^\(ASECRET=\).*/\1\"$ASECRET\"/" "$0"
}

GetTimeLine()
{
URL="http://api.twitter.com/1/statuses/home_timeline.xml"
PARAM="oauth_consumer_key=$CKEY&oauth_nonce=`GenerateNonce`&oauth_signature_method=HMAC-SHA1&oauth_timestamp=`GetTimeStamp`&oauth_token=$AKEY&oauth_version=1.0&status="
HASH="`GenerateHash \"GET\" \"$URL\" \"$PARAM\"`"

XML="`$HTTP_GET \"$URL?$PARAM&oauth_signature=$HASH\"`"
if [ "$XML" == "" ]
then
 echo "can not get TimeLine" >&2
 exit 1
fi

XML="`echo $XML | sed 's/<text>/\n\0/g; s/<\/screen_name>/\0\n/g' | sed -n '/^<text>.*<\/screen_name>$/!d; s/<text>\([^<]*\).*<screen_name>\([^<]*\).*/\2: \1/; p'`"
Decode "$XML"
}

UpdateTimeLine()
{
TWEET="`Encode \"$PREFIX$@$SUFFIX\"`"
if [ "$TWEET" == "" ]
then
 echo "can not decode tweet" >&2
 exit 1
fi

URL="http://api.twitter.com/1/statuses/update.xml"
PARAM="oauth_consumer_key=$CKEY&oauth_nonce=`GenerateNonce`&oauth_signature_method=HMAC-SHA1&oauth_timestamp=`GetTimeStamp`&oauth_token=$AKEY&oauth_version=1.0&status=$TWEET"
HASH="`GenerateHash \"POST\" \"$URL\" \"$PARAM\"`"

XML="`$HTTP_POST \"$PARAM&oauth_signature=$HASH\" \"$URL\"`"
if [ "$XML" == "" ]
then
 echo "can not post tweet" >&2
 exit 1
fi
}

if [ "$AKEY" == "" -o "$ASECRET" == "" ]
then
 RTOKEN="`GetRequestToken`"
 GetAccessToken $RTOKEN
else
 ARG="$1"
 shift 1
 
 case "$ARG" in
  init)
   sed -i "1,/^AKEY/ s/^\(AKEY=\).*/\1/" "$0"
   sed -i "1,/^ASECRET/ s/^\(ASECRET=\).*/\1/" "$0"
   ;;
  update)
   UpdateTimeLine "$@"
   ;;
  *)
   GetTimeLine
   ;;
 esac
fi