telegram-bot-bash/bashbot.sh

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# bashbot, the Telegram bot written in bash.
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# Written by @topkecleon and Juan Potato (@awkward_potato)
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# http://github.com/topkecleon/bashbot
# Depends on JSON.sh (http://github.com/dominictarr/JSON.sh),
# which is MIT/Apache-licensed.
# This file is public domain in the USA and all free countries.
# If you're in Europe, and public domain does not exist, then haha.
#!/bin/bash
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TOKEN=''
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URL='https://api.telegram.org/bot'$TOKEN
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MSG_URL=$URL'/sendMessage'
PHO_URL=$URL'/sendPhoto'
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UPD_URL=$URL'/getUpdates?offset='
OFFSET=0
send_message() {
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res=$(curl "$MSG_URL" -F "chat_id=$1" -F "text=$2")
}
send_photo() {
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res=$(curl "$PHO_URL" -F "chat_id=$1" -F "photo=@$2")
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}
process_client() {
local MESSAGE=$1
local TARGET=$2
local msg=""
case $MESSAGE in
'/info') msg="This is bashbot, the Telegram bot written entirely in bash.";;
*) msg="$MESSAGE";;
esac
send_message "$TARGET" "$msg"
}
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while true; do {
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res=$(curl $UPD_URL$OFFSET)
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TARGET=$(echo $res | ./JSON.sh | egrep '\["result",0,"message","chat","id"\]' | cut -f 2)
OFFSET=$(echo $res | ./JSON.sh | egrep '\["result",0,"update_id"\]' | cut -f 2)
MESSAGE=$(echo $res | ./JSON.sh -s | egrep '\["result",0,"message","text"\]' | cut -f 2 | cut -d '"' -f 2)
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OFFSET=$((OFFSET+1))
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if [ $OFFSET != 1 ]; then
process_client "$MESSAGE" "$TARGET" &
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fi
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} &>/dev/null; done