telegram-bot-bash/bashbot.sh

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#!/bin/bash
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##################################################################
#
# File: bashbot.sh
# Note: DO NOT EDIT! this file will be overwritten on update
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# shellcheck disable=SC2140,SC2031,SC2120,SC1091,SC1117,SC2059
#
# Description: bashbot, the Telegram bot written in bash.
#
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# Written by Drew (@topkecleon) KayM (@gnadelwartz).
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# Also contributed: Daniil Gentili (@danog), JuanPotato, BigNerd95,
# TiagoDanin, iicc1, dcoomber
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# https://github.com/topkecleon/telegram-bot-bash
#
# This file is public domain in the USA and all free countries.
# Elsewhere, consider it to be WTFPLv2. (wtfpl.net/txt/copying)
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#
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# Usage: bashbot.sh BOTCOMMAND
BOTCOMMANDS="-h help init start stop status suspendback resumeback killback"
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#
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# Exit Codes:
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# 0 - success (hopefully)
# 1 - can't change to dir
# 2 - can't write to tmp, count or token
# 3 - user / command / file not found
# 4 - unknown command
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# 5 - cannot start, stop or get status
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# 6 - mandatory module not found
# 7 - can't get bottoken
# 8 - curl/wget missing
# 10 - not bash!
#
#### $$VERSION$$ v1.45-dev-55-g5dd24c3
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##################################################################
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# are we running in a terminal?
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NN="\n"
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if [ -t 1 ] && [ -n "${TERM}" ]; then
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INTERACTIVE='yes'
RED='\e[31m'
GREEN='\e[32m'
ORANGE='\e[35m'
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GREY='\e[1;30m'
NC='\e[0m'
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NN="${NC}\n"
fi
declare -r INTERACTIVE RED GREEN ORANGE GREY NC NN
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# telegram uses utf-8 characters, check if we have an utf-8 charset
if [ "${LANG}" = "${LANG%[Uu][Tt][Ff]*}" ]; then
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printf "${ORANGE}Warning: Telegram uses utf-8, but looks like you are using non utf-8 locale:${NC} ${LANG}\n"
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fi
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# we need some bash 4+ features, check for old bash by feature
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if [ "$({ LC_ALL=C.utf-8 printf "%b" "\u1111"; } 2>/dev/null)" = "\u1111" ]; then
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printf "${ORANGE}Warning: Missing unicode '\uxxxx' support, missing C.utf-8 locale or to old bash version.${NN}"
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fi
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# in UTF-8 äöü etc. are part of [:alnum:] and ranges (e.g. a-z), but we want ASCII a-z ranges!
# for more information see doc/4_expert.md#Character_classes
azazaz='abcdefghijklmnopqrstuvwxyz' # a-z :lower:
AZAZAZ='ABCDEFGHIJKLMNOPQRSTUVWXYZ' # A-Z :upper:
o9o9o9='0123456789' # 0-9 :digit:
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azAZaz="${azazaz}${AZAZAZ}" # a-zA-Z :alpha:
azAZo9="${azAZaz}${o9o9o9}" # a-zA-z0-9 :alnum:
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# some important helper functions
# returns true if command exist
_exists() {
[ "$(type -t "$1")" = "file" ]
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}
# execute function if exists
_exec_if_function() {
[ "$(type -t "$1")" != "function" ] && return 1
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"$@"
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}
# returns true if function exist
_is_function() {
[ "$(type -t "$1")" = "function" ]
}
# round $1 in international notation! , returns float with $2 decimal digits
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# if $2 is not given or is not a positive number zero is assumed
_round_float() {
local digit="$2"; [[ "$2" =~ ^[${o9o9o9}]+$ ]] || digit="0"
: "$(LC_ALL=C printf "%.${digit}f" "$1" 2>/dev/null)"
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printf "%s" "${_//,/.}" # make more LANG independent
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}
# date is external, printf is much faster
_date(){
printf "%(%c)T\n" -1
}
setConfigKey() {
[[ "$1" =~ ^[-${azAZo9},._]+$ ]] || return 3
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[ -z "${BOTCONFIG}" ] && return 1
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printf '["%s"]\t"%s"\n' "${1//,/\",\"}" "${2//\"/\\\"}" >>"${BOTCONFIG}.jssh"
}
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getConfigKey() {
[[ "$1" =~ ^[-${azAZo9},._]+$ ]] || return 3
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[ -r "${BOTCONFIG}.jssh" ] && sed -n 's/\["'"$1"'"\]\t*"\(.*\)"/\1/p' "${BOTCONFIG}.jssh" | tail -n 1
}
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# escape characters in json strings for telegram
# $1 string, output escaped string
JsonEscape(){
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sed -E -e 's/\r//g' -e 's/([-"`´,§$%&/(){}#@!?*.\t])/\\\1/g' <<< "${1//$'\n'/\\n}"
}
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# clean \ from escaped json string
# $1 string, output cleaned string
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cleanEscape(){ # remove " all \ but \n\u \n or \r
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sed -E -e 's/\\"/+/g' -e 's/\\([^nu])/\1/g' -e 's/(\r|\n)//g' <<<"$1"
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}
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# check if $1 seems a valid token
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# return true if token seems to be valid
check_token(){
[[ "$1" =~ ^[${o9o9o9}]{8,10}:[${azAZo9}_-]{35}$ ]] && return 0
return 1
}
# log $1 with date
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log_error(){ printf "%(%c)T: %s\n" -1 "$*" >>"${ERRORLOG}"; }
log_debug(){ printf "%(%c)T: %s\n" -1 "$*" >>"${DEBUGLOG}"; }
log_update(){ printf "%(%c)T: %s\n" -1 "$*" >>"${UPDATELOG}"; }
# log $1 with date, special first \n
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log_message(){ printf "\n%(%c)T: %s\n" -1 "${1/\\n/$'\n'}" >>"${MESSAGELOG}"; }
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# curl is preferred, try detect curl even not in PATH
# sets BASHBOT_CURL to point to curl
DETECTED_CURL="curl"
detect_curl() {
local file warn="Warning: Curl not detected, try fallback to wget! pls install curl or adjust BASHBOT_CURL/BASHBOT_WGET environment variables."
# custom curl command
[ -n "${BASHBOT_CURL}" ] && return 0
# use wget
[ -n "${BASHBOT_WGET}" ] && DETECTED_CURL="wget" && return 1
# default use curl in PATH
BASHBOT_CURL="curl"
_exists curl && return 0
# search in usual locations
for file in /usr/bin /bin /usr/local/bin; do
[ -x "${file}/curl" ] && BASHBOT_CURL="${file}/curl" && return 0
done
# curl not in PATH and not in usual locations
DETECTED_CURL="wget"
log_update "${warn}"; [ -n "${BASHBOTDEBUG}" ] && log_debug "${warn}"
return 1
}
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# additional tests if we run in debug mode
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export BASHBOTDEBUG
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[[ "${BASH_ARGV[0]}" == *"debug"* ]] && BASHBOTDEBUG="yes"
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# $1 where $2 command $3 may debug
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# shellcheck disable=SC2094
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debug_checks(){ {
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[ -z "${BASHBOTDEBUG}" ] && return
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local token where="$1"; shift
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printf "%(%c)T: debug_checks: %s: bashbot.sh %s\n" -1 "${where}" "${1##*/}"
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# shellcheck disable=SC2094
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[ -z "${DEBUGLOG}" ] && printf "%(%c)T: %s\n" -1 "DEBUGLOG not set! =========="
token="$(getConfigKey "bottoken")"
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[ -z "${token}" ] && printf "%(%c)T: %s\n" -1 "Bot token is missing! =========="
check_token "${token}" || printf "%(%c)T: %s\n%s\n" -1 "Invalid bot token! ==========" "${token}"
[ -z "$(getConfigKey "botadmin")" ] && printf "%(%c)T: %s\n" -1 "Bot admin is missing! =========="
# call user defined debug_checks if exists
_exec_if_function my_debug_checks "$(_date)" "${where}" "$*"
} 2>/dev/null >>"${DEBUGLOG}"
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}
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# some Linux distributions (e.g. Manjaro) doesn't seem to have C locale activated by default
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if _exists locale && [ "$(locale -a | grep -c -e "^C$" -e "^C.[uU][tT][fF]")" -lt 2 ]; then
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printf "${ORANGE}Warning: locale ${NC}${GREY}C${NC}${ORANGE} and/or ${NC}${GREY}C.utf8${NC}${ORANGE} seems missing, use \"${NC}${GREY}locale -a${NC}${ORANGE}\" to show what locales are installed on your system.${NN}"
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fi
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# get location and name of bashbot.sh
SCRIPT="$0"
REALME="${BASH_SOURCE[0]}"
SCRIPTDIR="$(dirname "${REALME}")"
RUNDIR="$(dirname "$0")"
MODULEDIR="${SCRIPTDIR}/modules"
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# adjust stuff for source, use return from source without source
exit_source() { exit "$1"; }
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if [[ "${SCRIPT}" != "${REALME}" || "$1" == "source" ]]; then
SOURCE="yes"
[ -z "$1" ] && exit_source() { printf "Exit from source ...\n"; return "$1"; }
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fi
# emmbeded system may claim bash but it is not
# check for bash like ARRAY handlung
if ! (unset a; set -A a a; eval "a=(a b)"; eval '[ -n "${a[1]}" ]'; ) > /dev/null 2>&1; then
printf "Error: Current shell does not support ARRAY's, may be busybox ash shell. pls install a real bash!\n"
exit_source 10
fi
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# adjust path variables
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if [ -n "${BASHBOT_HOME}" ]; then
SCRIPTDIR="${BASHBOT_HOME}"
else
BASHBOT_HOME="${SCRIPTDIR}"
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fi
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[ -z "${BASHBOT_ETC}" ] && BASHBOT_ETC="${BASHBOT_HOME}"
[ -z "${BASHBOT_VAR}" ] && BASHBOT_VAR="${BASHBOT_HOME}"
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ADDONDIR="${BASHBOT_ETC:-.}/addons"
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RUNUSER="${USER}" # save original USER
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# provide help
case "$1" in
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"") [ -z "${SOURCE}" ] && printf "${ORANGE}Available commands: ${GREY}${BOTCOMMANDS}${NN}" && exit
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;;
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"-h"*) LOGO="${BASHBOT_HOME:-.}/doc/bashbot.ascii"
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{ [ -r "${LOGO}" ] && cat "${LOGO}"
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sed -nE -e '/(NOT EDIT)|(shellcheck)/d' -e '3,/###/p' "$0"; } | more
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exit;;
"help") HELP="${BASHBOT_HOME:-.}/README"
if [ -n "${INTERACTIVE}" ];then
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_exists w3m && w3m "${HELP}.html" && exit
_exists lynx && lynx "${HELP}.html" && exit
_exists less && less "${HELP}.txt" && exit
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fi
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cat "${HELP}.txt"
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exit;;
esac
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# OK, ENVIRONMENT is set up, let's do some additional tests
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if [[ -z "${SOURCE}" && -z "${BASHBOT_HOME}" ]] && ! cd "${RUNDIR}" ; then
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printf "${RED}ERROR: Can't change to ${RUNDIR} ...${NN}"
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exit_source 1
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fi
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RUNDIR="."
[ ! -w "." ] && printf "${ORANGE}WARNING: ${RUNDIR} is not writeable!${NN}"
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# check if JSON.sh is available
JSONSHFILE="${BASHBOT_JSONSH:-${SCRIPTDIR}/JSON.sh/JSON.sh}"
if [ ! -x "${JSONSHFILE}" ]; then
printf "${RED}ERROR:${NC} ${JSONSHFILE} ${RED}does not exist, are we in dev environment?${NN}${GREY}%s${NN}\n"\
"\$JSONSHFILE is set wrong or bashbot is not installed correctly, see doc/0_install.md"
exit_source 3
fi
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# file locations based on ENVIRONMENT
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BOTCONFIG="${BASHBOT_ETC:-.}/botconfig"
BOTACL="${BASHBOT_ETC:-.}/botacl"
DATADIR="${BASHBOT_VAR:-.}/data-bot-bash"
BLOCKEDFILE="${BASHBOT_VAR:-.}/blocked"
COUNTFILE="${BASHBOT_VAR:-.}/count"
LOGDIR="${RUNDIR:-.}/logs"
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# CREATE botconfig if not exist
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# assume everything already set up correctly if TOKEN is set
if [ -z "${BOTTOKEN}" ]; then
# BOTCONFIG does not exist, create
[ ! -f "${BOTCONFIG}.jssh" ] && printf '["bot_config_key"]\t"config_key_value"\n' >>"${BOTCONFIG}.jssh"
if [ -z "$(getConfigKey "bottoken")" ]; then
# ask user for bot token
if [ -z "${INTERACTIVE}" ] && [ "$1" != "init" ]; then
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printf "Running headless, set BOTTOKEN or run ${SCRIPT} init first!\n"
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exit 2
else
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printf "${RED}ENTER BOT TOKEN...${NN}${ORANGE}PLEASE WRITE YOUR TOKEN HERE OR PRESS CTRL+C TO ABORT${NN}"
read -r token
printf "\n"
fi
[ -n "${token}" ] && printf '["bottoken"]\t"%s"\n' "${token}" >> "${BOTCONFIG}.jssh"
fi
# no botadmin, setup botadmin
if [ -z "$(getConfigKey "botadmin")" ]; then
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# ask user for bot admin
if [ -z "${INTERACTIVE}" ]; then
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printf "Running headless, set botadmin to AUTO MODE!\n"
else
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printf "${RED}ENTER BOT ADMIN...${NN}${ORANGE}PLEASE WRITE YOUR TELEGRAM ID HERE OR PRESS ENTER\nTO MAKE FIRST USER TYPING '/start' BOT ADMIN${NN}?\b"
read -r admin
fi
[ -z "${admin}" ] && admin='?'
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printf '["botadmin"]\t"%s"\n' "${admin}" >> "${BOTCONFIG}.jssh"
fi
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# setup botacl file
if [ ! -f "${BOTACL}" ]; then
printf "${GREY}Create initial ${BOTACL} file.${NN}"
printf '\n' >"${BOTACL}"
fi
# check data dir file
if [ ! -w "${DATADIR}" ]; then
printf "${RED}ERROR: ${DATADIR} does not exist or is not writeable!.${NN}"
[ "$1" != "init" ] && exit_source 2 # skip on init
fi
# setup count file
if [ ! -f "${COUNTFILE}.jssh" ]; then
printf '["counted_user_chat_id"]\t"num_messages_seen"\n' >> "${COUNTFILE}.jssh"
elif [ ! -w "${COUNTFILE}.jssh" ]; then
printf "${RED}WARNING: Can't write to ${COUNTFILE}!.${NN}"
ls -l "${COUNTFILE}.jssh"
fi
# setup blocked file
if [ ! -f "${BLOCKEDFILE}.jssh" ]; then
printf '["blocked_user_or_chat_id"]\t"name and reason"\n' >>"${BLOCKEDFILE}.jssh"
fi
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fi
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if [[ ! -d "${LOGDIR}" || ! -w "${LOGDIR}" ]]; then
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LOGDIR="${RUNDIR:-.}"
fi
DEBUGLOG="${LOGDIR}/DEBUG.log"
ERRORLOG="${LOGDIR}/ERROR.log"
UPDATELOG="${LOGDIR}/BASHBOT.log"
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MESSAGELOG="${LOGDIR}/MESSAGE.log"
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# read BOTTOKEN from bot database if not set
if [ -z "${BOTTOKEN}" ]; then
BOTTOKEN="$(getConfigKey "bottoken")"
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if [ -z "${BOTTOKEN}" ]; then
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BOTERROR="Warning: can't get bot token, try to recover working config..."
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printf "${ORANGE}${BOTERROR}${NC} "
if [ -r "${BOTCONFIG}.jssh.ok" ]; then
log_error "${BOTERROR}"
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mv "${BOTCONFIG}.jssh" "${BOTCONFIG}.jssh.bad"
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cp "${BOTCONFIG}.jssh.ok" "${BOTCONFIG}.jssh"; printf "OK\n"
BOTTOKEN="$(getConfigKey "bottoken")"
else
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printf "\n${RED}Error: Can't recover from missing bot token! Remove ${BOTCONFIG}.jssh and run${NC} bashbot.sh init\n"
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exit_source 7
fi
fi
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fi
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# BOTTOKEN format checks
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if ! check_token "${BOTTOKEN}"; then
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printf "\n${ORANGE}Warning: Your bot token is incorrect, it should have the following format:${NC}\n%b%b"\
"<your_bot_id>${RED}:${NC}<35_alphanumeric_characters-hash> ${RED}e.g. =>${NC} 123456789${RED}:${NC}Aa-Zz_0Aa-Zz_1Aa-Zz_2Aa-Zz_3Aa-Zz_4\n\n"\
"${GREY}Your bot token: '${NC}${BOTTOKEN//:/${RED}:${NC}}'\n"
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if [[ ! "${BOTTOKEN}" =~ ^[${o9o9o9}]{8,10}: ]]; then
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printf "${GREY}\tHint: Bot id not a number or wrong len: ${NC}$(($(wc -c <<<"${BOTTOKEN%:*}")-1)) ${GREY}but should be${NC} 8-10\n"
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[ -n "$(getConfigKey "botid")" ] && printf "\t${GREEN}Did you mean: \"${NC}$(getConfigKey "botid")${GREEN}\" ?${NN}"
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fi
[[ ! "${BOTTOKEN}" =~ :[${azAZo9}_-]{35}$ ]] &&\
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printf "${GREY}\tHint: Hash contains invalid character or has not len${NC} 35 ${GREY}, hash len is ${NC}$(($(wc -c <<<"${BOTTOKEN#*:}")-1))\n"
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printf "\n"
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fi
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##################
# here we start with the real stuff
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BASHBOT_RETRY="" # retry by default
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URL="${BASHBOT_URL:-https://api.telegram.org/bot}${BOTTOKEN}"
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FILEURL="${URL%%/bot*}/file/bot${BOTTOKEN}"
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ME_URL=${URL}'/getMe'
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#################
# BASHBOT COMMON functions
declare -rx SCRIPT SCRIPTDIR MODULEDIR RUNDIR ADDONDIR BOTACL DATADIR COUNTFILE
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declare -rx BOTTOKEN URL ME_URL
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declare -ax CMD
declare -Ax UPD BOTSENT USER MESSAGE URLS CONTACT LOCATION CHAT FORWARD REPLYTO VENUE iQUERY iBUTTON
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declare -Ax SERVICE NEWMEMBER LEFTMEMBER PINNED MIGRATE
export res CAPTION ME
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###############
# load modules
for module in "${MODULEDIR:-.}"/*.sh ; do
# shellcheck source=./modules/aliases.sh
if ! _is_function "$(basename "${module}")" && [ -r "${module}" ]; then source "${module}" "source"; fi
done
##################
# read commands file if we are not sourced
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COMMANDS="${BASHBOT_ETC:-.}/commands.sh"
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if [ -r "${COMMANDS}" ]; then
# shellcheck source=./commands.sh
source "${COMMANDS}" "source"
else
[ -z "${SOURCE}" ] && printf "${RED}Warning: ${COMMANDS} does not exist or is not readable!.${NN}"
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fi
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# no debug checks on source
[ -z "${SOURCE}" ] && debug_checks "start" "$@"
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#####################
# BASHBOT INTERNAL functions
#
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# do we have BSD sed
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sed '1ia' </dev/null 2>/dev/null || printf "${ORANGE}Warning: You may run on a BSD style system without gnu utils ...${NN}"
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#jsonDB is now mandatory
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if ! _is_function jssh_newDB; then
printf "${RED}ERROR: Mandatory module jsonDB is missing or not readable!${NN}"
exit_source 6
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fi
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# $1 postfix, e.g. chatid
# $2 prefix, back- or startbot-
procname(){
printf '%s\n' "$2${ME}_$1"
}
# $1 string to search for programme incl. parameters
# returns a list of PIDs of all current bot processes matching $1
proclist() {
# shellcheck disable=SC2009
ps -fu "${UID}" | grep -F "$1" | grep -v ' grep'| grep -F "${ME}" | sed 's/\s\+/\t/g' | cut -f 2
}
# $1 string to search for programme to kill
killallproc() {
local procid; procid="$(proclist "$1")"
if [ -n "${procid}" ] ; then
# shellcheck disable=SC2046
kill $(proclist "$1")
sleep 1
procid="$(proclist "$1")"
# shellcheck disable=SC2046
[ -n "${procid}" ] && kill $(proclist -9 "$1")
fi
debug_checks "end killallproc" "$1"
}
# URL path for file id, $1 file_id
# use download_file "path" to download file
get_file() {
[ -z "$1" ] && return
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sendJson "" '"file_id": "'"$1"'"' "${URL}/getFile"
printf "%s\n" "${UPD["result,file_path"]}"
}
# download file to DATADIR
# $1 URL path, $2 proposed filename (may modified/ignored)
# outputs final filename
# keep old function name for backward compatibility
alias download="download_file"
download_file() {
local url="$1" file="${2:-$1}"
# old mode if full URL is given
if [[ "${1}" =~ ^https*:// ]]; then
# random filename if not given for http
if [ -z "$2" ]; then
: "$(mktemp -u -p . "XXXXXXXXXX" 2>/dev/null)"
file="download-${_#./}"
fi
else
# prefix https://api.telegram...
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url="${FILEURL}/${url}"
fi
# filename: replace "/" with "-", use mktemp if exist
file="${DATADIR:-.}/${file//\//-}"
[ -f "${file}" ] && file="$(mktemp -p "${DATADIR:-.}" "XXXXX-${file##*/}" )"
getJson "${url}" >"${file}" || return
# output absolute file path
printf "%s\n" "$(cd "${file%/*}" >/dev/null 2>&1 && pwd)/${file##*/}"
}
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# notify mycommands about errors while sending
# $1 calling function $2 error $3 chat $4 user $5 error message $6 ... remaining args to calling function
# calls function based on error: bashbotError{function} basbotError{error}
# if no specific function exist try to call bashbotProcessError
processError(){
local func="$1" err="$2"
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[[ "${err}" != "4"* ]] && return 1
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# check for bashbotError${func} provided in mycommands
# shellcheck disable=SC2082
if _is_function "bashbotError_${func}"; then
"bashbotError_${func}" "$@"
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# check for bashbotError${err} provided in mycommands
elif _is_function "bashbotError_${err}"; then
"bashbotError_${err}" "$@"
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# noting found, try bashbotProcessError
else
_exec_if_function bashbotProcessError "$@"
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fi
}
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# iconv used to filter out broken utf characters, if not installed fake it
if ! _exists iconv; then
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log_update "Warning: iconv not installed, pls imstall iconv!"
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function iconv() { cat; }
fi
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TIMEOUT="${BASHBOT_TIMEOUT:-20}"
[[ "${TIMEOUT}" =~ ^[${o9o9o9}]+$ ]] || TIMEOUT="20"
# usage: sendJson "chat" "JSON" "URL"
sendJson(){
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local json chat=""
if [ -n "$1" ]; then
chat='"chat_id":'"$1"','
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[[ "$1" == *[!${o9o9o9}-]* ]] && chat='"chat_id":"'"$1"' NAN",' # chat id not a number!
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fi
# compose final json
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json='{'"${chat} $(iconv -f utf-8 -t utf-8 -c <<<"$2")"'}'
if [ -n "${BASHBOTDEBUG}" ] ; then
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log_update "sendJson (${DETECTED_CURL}) CHAT=${chat#*:} JSON=$(cleanEscape "${json:0:100}") URL=${3##*/}"
log_message "DEBUG sendJson ==========\n$("${JSONSHFILE}" -b -n <<<"$(cleanEscape "${json}")" 2>&1)"
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fi
# chat id not a number
if [[ "${chat}" == *"NAN\"," ]]; then
sendJsonResult "$(printf '["ok"]\tfalse\n["error_code"]\t400\n["description"]\t"Bad Request: chat id not a number"\n')"\
"sendJson (NAN)" "$@"
return
fi
# OK here we go ...
# route to curl/wget specific function
res="$(sendJson_do "${json}" "$3")"
# check telegram response
sendJsonResult "${res}" "sendJson (${DETECTED_CURL})" "$@"
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[ -n "${BASHBOT_EVENT_SEND[*]}" ] && event_send "send" "${@}" &
}
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UPLOADDIR="${BASHBOT_UPLOAD:-${DATADIR}/upload}"
# $1 chat $2 file, $3 calling function
# return final file name or empty string on error
checkUploadFile() {
local err file="$2"
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[[ "${file}" == *'..'* || "${file}" == '.'* ]] && err=1 # no directory traversal
if [[ "${file}" == '/'* ]] ; then
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[[ ! "${file}" =~ ${FILE_REGEX} ]] && err=2 # absolute must match REGEX
else
file="${UPLOADDIR:-NOUPLOADDIR}/${file}" # others must be in UPLOADDIR
fi
[ ! -r "${file}" ] && err=3 # and file must exits of course
# file path error, generate error response
if [ -n "${err}" ]; then
BOTSENT=(); BOTSENT[OK]="false"
case "${err}" in
1) BOTSENT[ERROR]="Path to file $2 contains to much '../' or starts with '.'";;
2) BOTSENT[ERROR]="Path to file $2 does not match regex: ${FILE_REGEX} ";;
3) if [[ "$2" == "/"* ]];then
BOTSENT[ERROR]="File not found: $2"
else
BOTSENT[ERROR]="File not found: ${UPLOADDIR}/$2"
fi;;
esac
[ -n "${BASHBOTDEBUG}" ] && log_debug "$3: CHAT=$1 FILE=$2 MSG=${BOTSENT[DESCRIPTION]}"
return 1
fi
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printf "%s\n" "${file}"
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}
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#
# curl / wget specific functions
#
if detect_curl ; then
# here we have curl ----
[ -z "${BASHBOT_CURL}" ] && BASHBOT_CURL="curl"
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# $1 URL, $2 hack: log getJson if not ""
getJson(){
# shellcheck disable=SC2086
"${BASHBOT_CURL}" -sL -k ${BASHBOT_CURL_ARGS} -m "${TIMEOUT}" "$1"
}
# curl variant for sendJson
# usage: "JSON" "URL"
sendJson_do(){
# shellcheck disable=SC2086
"${BASHBOT_CURL}" -s -k ${BASHBOT_CURL_ARGS} -m "${TIMEOUT}"\
-d "$1" -X POST "$2" -H "Content-Type: application/json" | "${JSONSHFILE}" -b -n 2>/dev/null
}
#$1 Chat, $2 what, $3 file, $4 URL, $5 caption
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sendUpload() {
[ "$#" -lt 4 ] && return
if [ -n "$5" ]; then
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[ -n "${BASHBOTDEBUG}" ] &&\
log_update "sendUpload CHAT=$1 WHAT=$2 FILE=$3 CAPT=$5"
# shellcheck disable=SC2086
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res="$("${BASHBOT_CURL}" -s -k ${BASHBOT_CURL_ARGS} "$4" -F "chat_id=$1"\
-F "$2=@$3;${3##*/}" -F "caption=$5" | "${JSONSHFILE}" -b -n 2>/dev/null )"
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else
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# shellcheck disable=SC2086
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res="$("${BASHBOT_CURL}" -s -k ${BASHBOT_CURL_ARGS} "$4" -F "chat_id=$1"\
-F "$2=@$3;${3##*/}" | "${JSONSHFILE}" -b -n 2>/dev/null )"
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fi
sendJsonResult "${res}" "sendUpload (curl)" "$@"
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[ -n "${BASHBOT_EVENT_SEND[*]}" ] && event_send "upload" "$@" &
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}
else
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# NO curl, try wget
if _exists wget; then
getJson(){
# shellcheck disable=SC2086
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wget --no-check-certificate -t 2 -T "${TIMEOUT}" ${BASHBOT_WGET_ARGS} -qO - "$1"
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}
# curl variant for sendJson
# usage: "JSON" "URL"
sendJson_do(){
# shellcheck disable=SC2086
wget --no-check-certificate -t 2 -T "${TIMEOUT}" ${BASHBOT_WGET_ARGS} -qO - --post-data="$1" \
--header='Content-Type:application/json' "$2" | "${JSONSHFILE}" -b -n 2>/dev/null
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}
sendUpload() {
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log_error "Sorry, wget does not support file upload"
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BOTSENT[OK]="false"
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[ -n "${BASHBOT_EVENT_SEND[*]}" ] && event_send "upload" "$@" &
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}
else
# ups, no curl AND no wget
if [ -n "${BASHBOT_WGET}" ]; then
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printf "${RED}Error: You set BASHBOT_WGET but no wget found!${NN}"
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else
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printf "${RED}Error: curl and wget not found, install curl!${NN}"
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fi
exit_source 8
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fi
fi
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# retry sendJson
# $1 function $2 sleep $3 ... $n arguments
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sendJsonRetry(){
local retry="$1"; shift
[[ "$1" =~ ^\ *[${o9o9o9}.]+\ *$ ]] && sleep "$1"; shift
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printf "%(%c)T: RETRY %s %s %s\n" -1 "${retry}" "$1" "${2:0:60}"
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case "${retry}" in
'sendJson'*)
sendJson "$@"
;;
'sendUpload'*)
sendUpload "$@"
;;
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'send_album'*)
send_album "$@"
;;
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*)
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log_error "Error: unknown function ${retry}, cannot retry"
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return
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;;
esac
[ "${BOTSENT[OK]}" = "true" ] && log_error "Retry OK:${retry} $1 ${2:0:60}"
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} >>"${ERRORLOG}"
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# process sendJson result
# stdout is written to ERROR.log
# $1 result $2 function $3 .. $n original arguments, $3 is Chat_id
sendJsonResult(){
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local offset=0
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BOTSENT=( )
Json2Array 'UPD' <<<"$1"
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[ -n "${BASHBOTDEBUG}" ] && log_message "New Result ==========\n$1"
BOTSENT[OK]="${UPD["ok"]}"
if [ "${BOTSENT[OK]}" = "true" ]; then
BOTSENT[ID]="${UPD["result,message_id"]}"
BOTSENT[CHAT]="${UPD["result,chat,id"]}"
[ -n "${UPD["result"]}" ] && BOTSENT[RESULT]="${UPD["result"]}"
return
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# hot path everything OK!
else
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# oops something went wrong!
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if [ -n "$1" ]; then
BOTSENT[ERROR]="${UPD["error_code"]}"
BOTSENT[DESCRIPTION]="${UPD["description"]}"
[ -n "${UPD["parameters,retry_after"]}" ] && BOTSENT[RETRY]="${UPD["parameters,retry_after"]}"
else
BOTSENT[OK]="false"
BOTSENT[ERROR]="999"
BOTSENT[DESCRIPTION]="Send to telegram not possible, timeout/broken/no connection"
fi
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# log error
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[[ "${BOTSENT[ERROR]}" = "400" && "${BOTSENT[DESCRIPTION]}" == *"starting at byte offset"* ]] &&\
offset="${BOTSENT[DESCRIPTION]%* }"
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printf "%(%c)T: RESULT=%s FUNC=%s CHAT[ID]=%s ERROR=%s DESC=%s ACTION=%s\n" -1\
"${BOTSENT[OK]}" "$2" "$3" "${BOTSENT[ERROR]}" "${BOTSENT[DESCRIPTION]}" "${4:${offset}:100}"
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# warm path, do not retry on error, also if we use wegt
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[ -n "${BASHBOT_RETRY}${BASHBOT_WGET}" ] && return
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# OK, we can retry sendJson, let's see what's failed
# throttled, telegram say we send too many messages
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if [ -n "${BOTSENT[RETRY]}" ]; then
BASHBOT_RETRY="$(( ++BOTSENT[RETRY] ))"
printf "Retry %s in %s seconds ...\n" "$2" "${BASHBOT_RETRY}"
sendJsonRetry "$2" "${BASHBOT_RETRY}" "${@:3}"
unset BASHBOT_RETRY
return
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fi
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# timeout, failed connection or blocked
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if [ "${BOTSENT[ERROR]}" == "999" ];then
# check if default curl and args are OK
if ! curl -sL -k -m 2 "${URL}" >/dev/null 2>&1 ; then
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printf "%(%c)T: BASHBOT IP Address seems blocked!\n" -1
# user provided function to recover or notify block
if _exec_if_function bashbotBlockRecover; then
BASHBOT_RETRY="2"
printf "bashbotBlockRecover returned true, retry %s ...\n" "$2"
sendJsonRetry "$2" "${BASHBOT_RETRY}" "${@:3}"
unset BASHBOT_RETRY
fi
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return
fi
# are not blocked, default curl and args are working
if [ -n "${BASHBOT_CURL_ARGS}" ] || [ "${BASHBOT_CURL}" != "curl" ]; then
printf "Problem with \"%s %s\"? retry %s with default config ...\n"\
"${BASHBOT_CURL}" "${BASHBOT_CURL_ARGS}" "$2"
BASHBOT_RETRY="2"; BASHBOT_CURL="curl"; BASHBOT_CURL_ARGS=""
sendJsonRetry "$2" "${BASHBOT_RETRY}" "${@:3}"
unset BASHBOT_RETRY
fi
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fi
fi
} >>"${ERRORLOG}"
# convert common telegram entities to JSON
# title caption description markup inlinekeyboard
title2Json(){
local title caption desc markup keyboard
[ -n "$1" ] && title=',"title":"'$(JsonEscape "$1")'"'
[ -n "$2" ] && caption=',"caption":"'$(JsonEscape "$2")'"'
[ -n "$3" ] && desc=',"description":"'$(JsonEscape "$3")'"'
[ -n "$4" ] && markup=',"parse_mode":"'"$4"'"'
[ -n "$5" ] && keyboard=',"reply_markup":"'$(JsonEscape "$5")'"'
printf '%s\n' "${title}${caption}${desc}${markup}${keyboard}"
}
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# get bot name and id from telegram
getBotName() {
declare -A BOTARRAY
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Json2Array 'BOTARRAY' <<<"$(getJson "${ME_URL}" | "${JSONSHFILE}" -b -n 2>/dev/null)"
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[ -z "${BOTARRAY["result","username"]}" ] && return 1
# save botname and id
setConfigKey "botname" "${BOTARRAY["result","username"]}"
setConfigKey "botid" "${BOTARRAY["result","id"]}"
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printf "${BOTARRAY["result","username"]}\n"
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}
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# pure bash implementation, done by KayM (@gnadelwartz)
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# see https://stackoverflow.com/a/55666449/9381171
JsonDecode() {
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local remain U out="$1"
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local regexp='(.*)\\u[dD]([0-9a-fA-F]{3})\\u[dD]([0-9a-fA-F]{3})(.*)'
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while [[ "${out}" =~ ${regexp} ]] ; do
U=$(( ( (0xd${BASH_REMATCH[2]} & 0x3ff) <<10 ) | ( 0xd${BASH_REMATCH[3]} & 0x3ff ) + 0x10000 ))
remain="$(printf '\\U%8.8x' "${U}")${BASH_REMATCH[4]}${remain}"
out="${BASH_REMATCH[1]}"
done
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printf "%b\n" "${out}${remain}"
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}
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EVENT_SEND="0"
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declare -Ax BASHBOT_EVENT_SEND
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event_send() {
# max recursion level 5 to avoid fork bombs
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(( EVENT_SEND++ )); [ "${EVENT_SEND}" -gt "5" ] && return
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# shellcheck disable=SC2153
for key in "${!BASHBOT_EVENT_SEND[@]}"
do
_exec_if_function "${BASHBOT_EVENT_SEND[${key}]}" "$@"
done
}
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# fallback version, full version is in bin/bashbot_init.in.sh
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# initialize bot environment, user and permissions
bot_init() {
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if [ -n "${BASHBOT_HOME}" ] && ! cd "${BASHBOT_HOME}"; then
printf "Can't change to BASHBOT_HOME"
exit 1
fi
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# initialize addons
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printf "Initialize addons ...\n"
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for addons in "${ADDONDIR:-.}"/*.sh ; do
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# shellcheck source=./modules/aliases.sh
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[ -r "${addons}" ] && source "${addons}" "init" "$1"
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done
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printf "Done.\n"
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# adjust permissions
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printf "Adjusting files and permissions ...\n"
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chmod 711 .
chmod -R o-w ./*
chmod -R u+w "${COUNTFILE}"* "${BLOCKEDFILE}"* "${DATADIR}" logs "${LOGDIR}/"*.log 2>/dev/null
chmod -R o-r,o-w "${COUNTFILE}"* "${BLOCKEDFILE}"* "${DATADIR}" "${BOTACL}" 2>/dev/null
# jsshDB must writeable by owner
find . -name '*.jssh*' -exec chmod u+w \{\} +
printf "Done.\n"
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_exec_if_function my_init
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}
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if ! _is_function send_message ; then
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printf "${RED}ERROR: send_message is not available, did you deactivate ${MODULEDIR}/sendMessage.sh?${NN}"
exit_source 1
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fi
# check if JSON.awk exist and has x flag
JSONAWKFILE="${JSONSHFILE%.sh}.awk"
if [ -x "${JSONAWKFILE}" ] && _exists awk ; then
JSONSHFILE="JsonAwk"; JsonAwk() { "${JSONAWKFILE}" -v "BRIEF=8" -v "STRICT=0" -; }
fi
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# source the script with source as param to use functions in other scripts
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# do not execute if read from other scripts
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if [ -z "${SOURCE}" ]; then
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##############
# internal options only for use from bashbot and developers
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# shellcheck disable=SC2221,SC2222
case "$1" in
# update botname when starting only
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"botname"|"start"*)
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ME="$(getBotName)"
if [ -n "${ME}" ]; then
# ok we have a connection and got botname, save it
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[ -n "${INTERACTIVE}" ] && printf "${GREY}Bottoken is valid ...${NN}"
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jssh_updateKeyDB "botname" "${ME}" "${BOTCONFIG}"
rm -f "${BOTCONFIG}.jssh.flock"
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else
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printf "${GREY}Info: Can't get Botname from Telegram, try cached one ...${NN}"
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ME="$(getConfigKey "botname")"
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if [ -z "${ME}" ]; then
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printf "${RED}ERROR: No cached botname, can't continue! ...${NN}"
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exit 1
fi
fi
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[ -n "${INTERACTIVE}" ] && printf "Bot Name: %s\n" "${ME}"
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[ "$1" = "botname" ] && exit
;;&
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# used to send output of background and interactive to chats
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"outproc") # $2 chat_id $3 identifier of job, internal use only!
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[ -z "$3" ] && printf "No job identifier\n" && exit 3
[ -z "$2" ] && printf "No chat to send to\n" && exit 3
ME="$(getConfigKey "botname")"
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# read until terminated
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while read -r line ;do
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[ -n "${line}" ] && send_message "$2" "${line}"
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done
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# cleanup datadir, keep logfile if not empty
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rm -f -r "${DATADIR:-.}/$3"
[ -s "${DATADIR:-.}/$3.log" ] || rm -f "${DATADIR:-.}/$3.log"
debug_checks "end outproc" "$@"
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exit
;;
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# finally starts the read update loop, internal use only
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"startbot" )
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_exec_if_function start_bot "$2"
_exec_if_function get_updates "$2"
debug_checks "end startbot" "$@"
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exit
;;
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# run after every update to update files and adjust permissions
"init")
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# shellcheck source=./bin/bashbot._init.inc.sh"
[ -r "${BASHBOT_HOME:-.}/bin/bashbot_init.inc.sh" ] && source "${BASHBOT_HOME:-.}/bin/bashbot_init.inc.sh"
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bot_init "$2"
debug_checks "end init" "$@"
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exit
;;
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# stats deprecated
"stats"|"count")
printf "${ORANGE}Stats is a separate command now, see bin/bashbot_stats.sh --help${NN}"
"${BASHBOT_HOME:-.}"/bin/bashbot_stats.sh --help
exit
;;
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# broadcast deprecated
'broadcast')
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printf "${ORANGE}Broadcast is a separate command now, see bin/send_broadcast.sh --help${NN}"
"${BASHBOT_HOME:-.}"/bin/send_broadcast.sh --help
exit
;;
# does what it says
"status")
ME="$(getConfigKey "botname")"
SESSION="${ME:-_bot}-startbot"
BOTPID="$(proclist "${SESSION}")"
if [ -n "${BOTPID}" ]; then
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printf "${GREEN}Bot is running with UID ${RUNUSER}.${NN}"
exit
else
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printf "${ORANGE}No Bot running with UID ${RUNUSER}.${NN}"
exit 5
fi
debug_checks "end status" "$@"
;;
# start bot as background job and check if bot is running
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"start")
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SESSION="${ME:-_bot}-startbot"
BOTPID="$(proclist "${SESSION}")"
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if _is_function process_update; then
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# shellcheck disable=SC2086
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[ -n "${BOTPID}" ] && kill ${BOTPID} && printf "${GREY}Stop already running bot ...${NN}"
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nohup "${SCRIPT}" "startbot" "$2" "${SESSION}" &>/dev/null &
printf "Session Name: %s\n" "${SESSION}"
sleep 1
else
printf "${ORANGE}Update processing disabled, bot can only send messages.${NN}"
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[ -n "${BOTPID}" ] && printf "${ORANGE}Already running bot found ...${NN}"
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fi
if [ -n "$(proclist "${SESSION}")" ]; then
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printf "${GREEN}Bot started successfully.${NN}"
else
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printf "${RED}An error occurred while starting the bot.${NN}"
exit 5
fi
debug_checks "end start" "$@"
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;;
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# does what it says
"stop")
ME="$(getConfigKey "botname")"
SESSION="${ME:-_bot}-startbot"
BOTPID="$(proclist "${SESSION}")"
if [ -n "${BOTPID}" ]; then
# shellcheck disable=SC2086
if kill ${BOTPID}; then
# inform botadmin about stop
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send_normal_message "$(getConfigKey "botadmin")" "Bot ${ME} stopped ..." &
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printf "${GREEN}OK. Bot stopped successfully.${NN}"
else
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printf "${RED}An error occurred while stopping bot.${NN}"
exit 5
fi
else
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printf "${ORANGE}No Bot running with UID ${RUNUSER}.${NN}"
fi
debug_checks "end stop" "$@"
exit
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;;
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# suspend, resume or kill background jobs
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"suspendb"*|"resumeb"*|'restartb'*|"killb"*)
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_is_function job_control || { printf "${RED}Module background is not available!${NN}"; exit 3; }
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ME="$(getConfigKey "botname")"
job_control "$1"
debug_checks "end background $1" "$@"
;;
*)
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printf "${RED}${REALME##*/}: unknown command${NN}"
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printf "${ORANGE}Available commands: ${GREY}${BOTCOMMANDS}${NN}" && exit
exit 4
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;;
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esac
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# warn if root
if [[ "${UID}" -eq "0" ]] ; then
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printf "\n${ORANGE}WARNING: ${SCRIPT} was started as ROOT (UID 0)!${NN}"
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printf "${ORANGE}You are at HIGH RISK when running a Telegram BOT with root privileges!${NN}"
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fi
fi # end source