added tg script
parent
71670d3654
commit
8718ef9edf
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@ -0,0 +1,454 @@
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#!/bin/bash
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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VERSION="0.4"
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TOKEN="2021660264:AAHAMctZcI0vP7vB_uto-vfUkiUDNABbQVo"
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CHATS=(-1001541565264)
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DEBUG=false
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DRY_RUN=false
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IMAGE_FILE=""
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DOCUMENT_FILE=""
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PARSE_MODE=""
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CODE_MODE=0
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CRON_MODE=0
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ACTION=""
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TITLE=""
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DISABLE_WEB_PAGE_PREVIEW=false
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DISABLE_NOTIFICATION=false
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URL="https://api.telegram.org/bot"
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FILE_URL="https://api.telegram.org/file/bot"
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CURL_OPTIONS="-s"
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HAS_JQ=false
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hash jq >/dev/null 2>&1 && HAS_JQ=true
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function help {
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version
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echo "Usage: $0 [options] [message]"
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echo
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echo "OPTIONS are:"
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echo " -t <TOKEN> Telegram bot token to use. See ENVIRONMENT for more information."
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echo " -c <CHAT_ID> Chat to use as recipient. Can be given more than once. See ENVIRONMENT for more information."
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echo " -f <FILE> Sends file."
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echo " -i <FILE> Sends file as image. This will fail if the file isn't an actual image file."
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echo " -M Enables Markdown processing at telegram."
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echo " -H Enables HTML processing at telegram."
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echo " -C Sends text as monospace code. Useful when piping command outputs into this tool."
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echo " -r Like -C, but if the first line starts with '+ ', it is specially formatted."
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echo " -T <TITLE> Sets a title for the message. Printed in bold text if -M or -H is used."
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echo " -l Fetch known chat_ids."
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echo " -R Receive a file sent via telegram."
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echo " -D Sets disable_web_page_preview parameter to, well, disable the preview for links to webpages."
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echo " Can also be set in config as TELEGRAM_DISABLE_WEB_PAGE_PREVIEW=true (see ENVIRONMENT)"
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echo " This feature is only supported for text messages, not when sending files or images (-f, -i)."
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echo " -N Diables notifications on clients. Users will receive a notification with no sound."
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echo " Can also be set in config as TELEGRAM_DISABLE_NOTIFICATION=true (see ENVIRONMENT)"
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echo " -m Outputs the last received message. Format is: <Message ID> <Sender ID> <Chat ID> <Text>"
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echo
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echo "DEBUGGING OPTIONS are:"
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echo " -v Display lots of more or less useful information."
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echo " -j Pretend you don't have JQ installed."
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echo " -n Dry-run - don't send messages, only print them on screen."
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echo
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echo "Message can be '-', in that case STDIN will be used."
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echo
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echo "ENVIRONMENT"
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echo " TOKEN and CHAT_ID are required. You can set them in four different ways:"
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echo " 1) globally in /etc/telegram.sh.conf"
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echo " 2) user-local in ~/.telegram.sh"
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echo " 3) user-local in ~/.telegram.sh.conf"
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echo " 4) via environment variables TELEGRAM_TOKEN and TELEGRAM_CHAT"
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echo " 5) via options -t and -c"
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echo " Later methods overwrite earlier settings, so you can easily override global settings."
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echo " Please be aware that you shuld keep your telegram token secret!"
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echo
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exit
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}
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function version {
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echo "telegram.sh version $VERSION"
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echo "by Fabian Schlenz"
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}
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function list_chats {
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log "$URL$TOKEN"
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response=`curl $CURL_OPTIONS $URL$TOKEN/getUpdates`
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log "$response"
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if [ "$HAS_JQ" = true ]; then
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echo "These are the available chats that I can find right now. The ID is the number at the front."
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echo "If there are no chats or the chat you are looking for isn't there, run this command again"
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echo "after sending a message to your bot via telegram."
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echo
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jq -r '.result | .[].message.chat | "\(.id|tostring) - \(.first_name) \(.last_name) (@\(.username))"' 2>/dev/null <<< "$response" || {
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echo "Could not parse reponse from Telegram."
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echo "Response was: $response"
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exit 1
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}
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else
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echo "You don't have jq installed. I'm afraid I can't parse the JSON from telegram without it."
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echo "So I'll have you do it. ;-)"
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echo
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echo "Please look for your chat_id in this output by yourself."
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echo 'Look for something like "chat":{"id":<CHAT_ID> and verify that first_name, last_name and'
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echo "username match your expected chat."
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echo
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echo "If there are no chats listed or the chat you are looking for isn't there, try again after"
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echo "sending a message to your bot via telegram."
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echo
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echo $response
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fi
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}
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function receive_message {
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if [ "$HAS_JQ" = false ]; then
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echo "You need to have jq installed in order to be able to receive messages."
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exit 1
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fi
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result=`curl $CURL_OPTIONS $URL$TOKEN/getUpdates?allowed_updates=message`
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log "$result"
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if [ "`jq '.result' <<< "$result"`" = "[]" ]; then
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echo "No recent messages."
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exit 1
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fi
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jq -r '.result[-1].message | [(.message_id|tostring), (.from.id|tostring), (.chat.id|tostring), .text] | join(" ")' <<< "$result"
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exit 0
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}
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function receive_file {
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if [ "$HAS_JQ" = false ]; then
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echo "You need to have jq installed in order to be able to download files."
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exit 1
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fi
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result=`curl $CURL_OPTIONS $URL$TOKEN/getUpdates?allowed_updates=message`
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log "$result"
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# {"ok":true,"result":[
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# {
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# "update_id":441727866,
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# "message":{
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# "message_id":8339,
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# "from":{"id":15773,"is_bot":false,"first_name":"Fabian","last_name":"Schlenz","username":"fabianonline","language_code":"de"},
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# "chat":{"id":15773,"first_name":"Fabian","last_name":"Schlenz","username":"fabianonline","type":"private"},
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# "date":1526564127,
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# "document":{"file_name":"desktop.ini","file_id":"BQAav-HkXugI","file_size":282}}}]}
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file_id=`jq -r '.result[-1].message.document.file_id' <<< "$result"`
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log "file_id: $file_id"
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if [ "$file_id" == "null" ]; then
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echo "Last message received apparently didn't contain a file. Aborting."
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exit 1
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fi
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file_name=`jq -r '.result[-1].message.document.file_name' <<< "$result"`
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log "file_name: $file_name"
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result=`curl $CURL_OPTIONS $URL$TOKEN/getFile?file_id=$file_id`
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log $result
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# {"ok":true,"result":{"file_id":"BQAav-HkXugI","file_size":282,"file_path":"documents/file_271.ini"}}
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path=`jq -r '.result.file_path' <<< "$result"`
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log "path: $path"
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if [ "$path" == "null" ]; then
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echo "Could not parse telegram's response to getFile. Aborting."
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exit 1
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fi
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file_name="`date +%s`_$file_name"
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log "file_name: $file_name"
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if [ -e "$file_name" ]; then
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echo "File $file_name already exists. This is unexpected, so I'm quitting now."
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exit 1
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fi
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curl $FILE_URL$TOKEN/$path --output "$file_name"
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echo "File downloaded as $file_name"
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}
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function log {
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[ "$DEBUG" = true ] && echo "DEBUG: $1"
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}
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function check_file {
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if [ ! -e "$1" ]; then
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echo "The file $1 does not exist."
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exit 1
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fi
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size=$(stat -c%s "$1")
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if (( size > 52428800 )); then
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echo "File $1 is breaking the file size limit imposed on Telegram bots (currently 50MB)."
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exit 1
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fi
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}
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function escapeMarkdown {
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res="${1//\*/∗}"
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res="${res//_/＿}"
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res="${res//\`/‵}"
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#res="${res//\//∕}"
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echo "$res"
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}
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while getopts "t:c:i:f:MHCrhlvjnRmDNT:" opt; do
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case $opt in
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t)
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TOKEN="$OPTARG"
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;;
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c)
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CHATS+=("$OPTARG")
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;;
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i)
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IMAGE_FILE="$OPTARG"
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;;
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f)
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DOCUMENT_FILE="$OPTARG"
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;;
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M)
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PARSE_MODE="Markdown"
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;;
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H)
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PARSE_MODE="HTML"
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;;
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C)
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PARSE_MODE="Markdown"
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CODE_MODE=1
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;;
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r)
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PARSE_MODE="Markdown"
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CRON_MODE=1
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;;
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l)
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ACTION="list_chats"
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;;
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v)
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DEBUG=true
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;;
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j)
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HAS_JQ=false
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;;
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n)
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DRY_RUN=true
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;;
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R)
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ACTION="receive_file"
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;;
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m)
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ACTION="receive_message"
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;;
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D)
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DISABLE_WEB_PAGE_PREVIEW=true
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;;
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N)
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DISABLE_NOTIFICATION=true
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;;
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T)
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TITLE="$OPTARG"
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;;
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?|h)
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help
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;;
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:)
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echo "Option -$OPTARG needs an argument."
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exit 1
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;;
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\?)
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echo "Invalid option -$OPTARG"
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exit 1
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;;
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esac
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done
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if [ "$CRON_MODE" -eq 1 ] && [ "$CODE_MODE" -eq 1 ]; then
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echo "You can either use -C or -r, but not both."
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exit 1
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fi
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log "TOKEN is now $TOKEN"
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log "CHATS is now ${CHATS[*]}"
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[ -z "$TOKEN" ] && TOKEN=$TELEGRAM_TOKEN
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[ ${#CHATS[@]} -eq 0 ] && CHATS=($TELEGRAM_CHAT)
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log "TOKEN is now $TOKEN"
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log "CHATS is now ${CHATS[*]}"
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log "Importing config file(s)..."
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[ -r /etc/telegram.sh.conf ] && source /etc/telegram.sh.conf
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[ -r ~/.telegram.sh ] && source ~/.telegram.sh
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[ -r ~/.telegram.sh.conf ] && source ~/.telegram.sh.conf
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[ -z "$TOKEN" ] && TOKEN=$TELEGRAM_TOKEN
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[ ${#CHATS[@]} -eq 0 ] && CHATS=($TELEGRAM_CHAT)
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[ -n "$TELEGRAM_DISABLE_WEB_PAGE_PREVIEW" ] && DISABLE_WEB_PAGE_PREVIEW="$TELEGRAM_DISABLE_WEB_PAGE_PREVIEW"
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[ -n "$TELEGRAM_DISABLE_NOTIFICATION" ] && DISABLE_NOTIFICATION="$TELEGRAM_DISABLE_NOTIFICATION"
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log "TOKEN is now $TOKEN"
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log "CHATS is now ${CHATS[*]}"
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log "DISABLE_WEB_PAGE_PREVIEW is now $DISABLE_WEB_PAGE_PREVIEW"
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log "DISABLE_NOTIFICATION is now $DISABLE_NOTIFICATION"
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if [ -z "$TOKEN" ]; then
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echo "No bot token was given."
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exit 1
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fi
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if [ ${#CHATS[@]} -eq 0 ] && [ -z "$ACTION" ]; then
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echo "No chat(s) given."
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exit 1
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fi
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if [ "$ACTION" = "list_chats" ]; then
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list_chats
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exit 0
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fi
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if [ "$ACTION" = "receive_file" ]; then
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receive_file
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exit 0
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fi
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if [ "$ACTION" = "receive_message" ]; then
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receive_message
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exit 0
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fi
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shift $((OPTIND - 1))
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TEXT="$1"
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log "Text: $TEXT"
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[ "$TEXT" = "-" ] && TEXT=$(</dev/stdin)
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log "Text: $TEXT"
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if [ $CODE_MODE -eq 1 ]; then
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TEXT='```'$'\n'$TEXT$'\n''```'
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fi
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if [ $CRON_MODE -eq 1 ]; then
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ONLY_COMMANDS=1
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while read line; do
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if [ "${line:0:2}" = "+ " ]; then
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ONLY_COMMANDS=0
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fi
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done <<< "$TEXT"
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if [ "$ONLY_COMMANDS" -eq 1 ]; then
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exit 0
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fi
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TEXT='```'$'\n'$TEXT$'\n''```'
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#FIRST_LINE=1
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#BLOCK_OPEN=0
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#NEW_TEXT=""
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#while read line; do
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# if [ "${line:0:2}" = "+ " ]; then
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# if [ "$BLOCK_OPEN" -eq 1 ]; then
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# NEW_TEXT="$NEW_TEXT"'```'$'\n'
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# BLOCK_OPEN=0
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# fi
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# NEW_TEXT="$NEW_TEXT*`escapeMarkdown "${line:2}"`*"$'\n'
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# else
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# if [ "$BLOCK_OPEN" -eq 0 ]; then
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# NEW_TEXT="$NEW_TEXT"'```'$'\n'
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# BLOCK_OPEN=1
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# fi
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# NEW_TEXT="$NEW_TEXT$line"$'\n'
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# fi
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#done <<< "$TEXT"
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#[ "$BLOCK_OPEN" -eq 1 ] && NEW_TEXT="$NEW_TEXT"'```'
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#TEXT="$NEW_TEXT"
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fi
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log "Text: $TEXT"
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if [ -n "$TITLE" ]; then
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if [ "$PARSE_MODE" == "HTML" ]; then
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TEXT="<b>$TITLE</b>"$'\n\n'"$TEXT"
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elif [ "$PARSE_MODE" == "Markdown" ]; then
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TEXT="*$TITLE*"$'\n\n'"$TEXT"
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else
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TEXT="$TITLE"$'\n\n'"$TEXT"
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fi
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fi
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if [ -z "$TEXT" ] && [ -z "$DOCUMENT_FILE" ] && [ -z "$IMAGE_FILE" ]; then
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echo "Neither text nor image or other file given."
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exit 1
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fi
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if [ -n "$DOCUMENT_FILE" ] && [ -n "$IMAGE_FILE" ]; then
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echo "You can't send a file AND an image at the same time."
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exit 1
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fi
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[ -n "$PARSE_MODE" ] && CURL_OPTIONS="$CURL_OPTIONS --form-string parse_mode=$PARSE_MODE"
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if [ -n "$DOCUMENT_FILE" ]; then
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check_file "$DOCUMENT_FILE"
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CURL_OPTIONS="$CURL_OPTIONS --form document=@\"$DOCUMENT_FILE\""
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CURL_OPTIONS="$CURL_OPTIONS --form caption=<-"
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METHOD="sendDocument"
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elif [ -n "$IMAGE_FILE" ]; then
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check_file "$IMAGE_FILE"
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CURL_OPTIONS="$CURL_OPTIONS --form photo=@\"$IMAGE_FILE\""
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CURL_OPTIONS="$CURL_OPTIONS --form caption=<-"
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METHOD="sendPhoto"
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else
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CURL_OPTIONS="$CURL_OPTIONS --form text=<-"
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[ "$DISABLE_WEB_PAGE_PREVIEW" = true ] && CURL_OPTIONS="$CURL_OPTIONS --form-string disable_web_page_preview=true"
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METHOD="sendMessage"
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fi
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[ "$DISABLE_NOTIFICATION" = true ] && CURL_OPTIONS="$CURL_OPTIONS --form-string disable_notification=true"
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for id in "${CHATS[@]}"; do
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MY_CURL_OPTIONS="$CURL_OPTIONS --form-string chat_id=$id $URL$TOKEN/$METHOD"
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if [ "$DRY_RUN" = true ]; then
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echo "Executing: curl $MY_CURL_OPTIONS"
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echo " Text: $TEXT"
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echo
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status=0
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response='{"ok": true}'
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else
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response=`curl $MY_CURL_OPTIONS <<< "$TEXT"`
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status=$?
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fi
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log "Response was: $response"
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if [ $status -ne 0 ]; then
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echo "curl reported an error. Exit code was: $status."
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echo "Response was: $response"
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echo "Quitting."
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exit $status
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fi
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if [ "$HAS_JQ" = true ]; then
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if [ "`jq -r '.ok' <<< "$response"`" != "true" ]; then
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echo "Telegram reported following error:"
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jq -r '"\(.error_code): \(.description)"' <<< "$response"
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echo "Quitting."
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exit 1
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fi
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else
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if [[ "$response" != '{"ok":true'* ]]; then
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echo "Telegram reported an error:"
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echo $response
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echo "Quitting."
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exit 1
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fi
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fi
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done
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