mirror of https://github.com/byReqz/conn.git
240 lines
9.9 KiB
Bash
Executable File
240 lines
9.9 KiB
Bash
Executable File
#!/bin/bash
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# license: gpl-3
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show_help="conn: a quick and dirty server availability check
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usage:
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"$0" <args> [IP(s)/hostname(s)]
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arguments:
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-h / --help show help page (this)
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-6 / --force-ipv6 force ipv6 portscanning (also forces portscanning)
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-4 / --force-ipv4 force ipv4 portscanning (also forces portscanning)
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-y / --yes portscan without asking
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-n / --no dont portscan
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-w / --wait wait for active connection
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-u / --update update the script
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-f / --fast disable os check
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-s / --simple simplify output"
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function check_update {
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if [[ $(curl -s https://raw.githubusercontent.com/byReqz/conn/main/hash) != $(md5sum $0 | cut -c -32) ]] && [[ -z $1 ]] || [[ $(curl -s https://raw.githubusercontent.com/byReqz/conn/main/hash) != $(md5sum $0 | cut -c -32) ]] && [[ $1 != "--update" ]] || [[ $(curl -s https://raw.githubusercontent.com/byReqz/conn/main/hash) != $(md5sum $0 | cut -c -32) ]] && [[ $1 != "-u" ]];then
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echo "#############################################"
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echo -e "\e[4mnote: newer version detected, use -u to update\e[0m"
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echo "#############################################"
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echo ""
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fi
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}
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function run_update {
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if [[ $(curl -s https://raw.githubusercontent.com/byReqz/conn/main/hash) != $(md5sum $0 | cut -c -32) ]];then
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wget -O $0 --quiet "https://raw.githubusercontent.com/byReqz/conn/main/conn.sh"
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echo "#############################################"
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echo -e "\e[4mscript has been updated to the newest version\e[0m"
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echo "#############################################"
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exit
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elif [[ $(curl -s https://raw.githubusercontent.com/byReqz/conn/main/hash) = $(md5sum $0 | cut -c -32) ]];then
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echo "#############################################"
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echo "no newer version found"
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echo "#############################################"
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exit
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fi
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}
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function prepare {
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check_update
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get_args "$@"
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set_argvars $args
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validate $input
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}
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function get_args {
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input=$(echo " $@")
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args=$(echo "$input" | grep -o -e "-h" -e "--help" -e "-6" -e "--force-ipv6" -e "-4" -e "--force-ipv4" -e "-y" -e "--yes" -e "-n" -e "--no" -e "-w" -e "--wait" -e "-u" -e "--update" -e "-f" -e "--fast" -e "-s" -e "--simple" | xargs)
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for arg in $args; do
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input=$(echo "$input" | sed "s/$arg//g")
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done
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#quick fix to prevent nslookups interactive mode being triggered by invalid arguments
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#some other places in the code have also gotten a leading space to prevent similar issues
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for v in $input; do
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if [[ ! $(echo $v | cut -c1) == "-" ]];then
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newinput="$newinput $v"
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else
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newinput="$newinput $(echo $v | cut -c 2-)"
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fi
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done
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input="$newinput"
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}
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function set_argvars {
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if [[ $@ =~ -6 ]] || [[ $@ =~ --force-ipv6 ]];then
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only="-6"
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fi
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if [[ $@ =~ -4 ]] || [[ $@ =~ --force-ipv4 ]];then
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only="-4"
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fi
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if [[ $@ =~ -y ]] || [[ $@ =~ --yes ]];then
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doportscan=true
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fi
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if [[ $@ =~ -n ]] || [[ $@ =~ --no ]];then
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doportscan=false
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fi
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if [[ $@ =~ -s ]] || [[ $@ =~ --simple ]];then
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simpleoutput=true
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fi
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if [[ $@ =~ -w ]] || [[ $@ =~ --wait ]];then
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waitcheck=true
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fi
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if [[ $@ =~ -f ]] || [[ $@ =~ --fast ]];then
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oscheck=false
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fi
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}
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function validate {
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for arg in $@; do
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if [[ "$arg" =~ : ]];then
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only="-6" # enable ipv6, this needs a more complex function to avoid treating every argument as v6
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fi
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if ip route show "$arg" 2&> /dev/null;then
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hosts="$hosts $arg"
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elif nslookup "$arg" > /dev/null;then
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hosts="$hosts $arg"
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else
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echo "invalid input: $arg"
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fi
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done
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}
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function main {
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if [[ $simpleoutput == true ]] && [[ -n $hosts ]];then
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echo "-------------------Availability----------------------"
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fping $only -e $@
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if [[ $oscheck != "false" ]];then
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echo ""
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for host in $@;do
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linuxping=$(nping $only -c1 -p22,222 "$host")
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if [[ -n $(echo "$linuxping" | grep -e "Successful connections: 1") ]];then
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echo "$host seems to be booted into a Linux system"
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elif [[ -n $(echo "$linuxping" | grep -e "Successful connections: 2") ]];then
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echo "$host seems to be booted into the rescue system"
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fi
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winping135=$(nping $only -c1 -p135 "$host")
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winping3389=$(nping $only -c1 -p3389 "$host")
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if [[ -n $(echo "$winping135" | grep -e "Successful connections: 1") ]] && [[ -n $(echo "$winping3389" | grep -e "Successful connections: 1") ]];then
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echo "$host seems to be booted into Windows"
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elif [[ -z $(fping $only -a $host) ]] && [[ -n $(echo "$winping3389" | grep -e "Successful connections: 1") ]];then
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echo "$host seems to be booted into (desktop) Windows"
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fi
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done
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fi
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echo "-----------------------------------------------------"
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else
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for host in $hosts;do
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if [[ $waitcheck == true ]];then
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echo "-w used, waiting for active connection"
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echo "checking connection status for $host"
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fping=$(fping $only -a $host)
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if [[ ! $oscheck == false ]];then
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p135=$(nping $only -q1 -c1 -p135 $host)
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p3389=$(nping $only -q1 -c1 -p3389 $host)
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fi
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if [[ $fping != "$host" ]] && [[ -n $(echo $p135 | grep "Successful connections: 1") ]] || [[ $fping != "$host" ]] && [[ -n $(echo $p3389 | grep "Successful connections: 1") ]];then
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echo "-------------------Availability----------------------"
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echo "note: this seems to be a windows machine which does not respond to ICMP"
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notify-send "$host is now reachable" "and seems to be a windows machine" -u normal -t 30000 -a conn
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echo "-----------------------------------------------------"
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elif [[ $fping = "$host" ]] && [[ -n $(echo $p135 | grep "Successful connections: 1") ]];then
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echo "-------------------Availability----------------------"
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echo "note: this seems to be a windows machine which does respond to ICMP"
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fping -e $host
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notify-send "$host is now reachable" "and seems to be a windows machine" -u normal -t 30000 -a conn
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echo "-----------------------------------------------------"
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else
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while [[ "$(fping $only -m -q -u $host)" == "$host" ]]; do :
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done
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echo "-------------------Availability----------------------"
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fping -e $host
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if [[ ! $oscheck == false ]];then
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rescue=$(nping $only -q1 -c1 -p22,222 $host)
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fi
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if [[ -n $(echo $rescue | grep "Successful connections: 1") ]];then
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echo "note: this seems to be a linux machine"
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notify-send "$host is now reachable" "and seems to be in a linux system" -u normal -t 30000 -a conn
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elif [[ -n $(echo $rescue | grep "Successful connections: 2") ]];then
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echo "note: this machine seems to be in the rescue system"
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notify-send "$host is now reachable" "and seems to be in the rescue system" -u normal -t 30000 -a conn
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elif [[ -n $(echo $p135 | grep "Successful connections: 1") ]] || [[ -n $(echo $p3389 | grep "Successful connections: 1") ]];then
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echo "note: this machine seems to be booted into windows"
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notify-send "$host is now reachable" "and seems to be booted into windows" -u normal -t 30000 -a conn
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else
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notify-send "$host is now reachable" -u normal -t 30000 -a conn
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fi
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echo "-----------------------------------------------------"
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fi
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else
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echo "checking connection status for $host"
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fping=$(fping $only -a $host)
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if [[ ! $oscheck == false ]];then
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p135=$(nping $only -q1 -c1 -p135 $host)
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p3389=$(nping $only -q1 -c1 -p3389 $host)
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fi
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if [[ $fping != "$host" ]] && [[ -n $(echo $p135 | grep "Successful connections: 1") ]] || [[ $fping != "$host" ]] && [[ -n $(echo $p3389 | grep "Successful connections: 1") ]];then
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echo "-------------------Availability----------------------"
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echo "note: this seems to be a windows machine which does not respond to ICMP"
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echo "-----------------------------------------------------"
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elif [[ $fping != "$host" ]] && [[ -z $(echo $p135 | grep "Successful connections: 1") ]] || [[ $fping != "$host" ]] && [[ -z $(echo $p3389 | grep "Successful connections: 1") ]];then
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echo "-------------------Availability----------------------"
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echo "$host is not reachable"
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echo "-----------------------------------------------------"
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else
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echo "-------------------Availability----------------------"
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fping $only -e $host
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if [[ ! $oscheck == false ]];then
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rescue=$(nping $only -q1 -c1 -p22,222 $host)
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if [[ -n $(echo $rescue | grep "Successful connections: 1") ]];then
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echo "note: this seems to be a linux machine"
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elif [[ -n $(echo $rescue | grep "Successful connections: 2") ]];then
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echo "note: this machine seems to be in the rescue system"
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elif [[ -n $(echo $p135 | grep "Successful connections: 1") ]] || [[ -n $(echo $p3389 | grep "Successful connections: 1") ]];then
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echo "note: this machine seems to be booted into windows"
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fi
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fi
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echo "-----------------------------------------------------"
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fi
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fi
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if [[ ! $doportscan == false ]];then
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if [[ $doportscan == true ]];then
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portscan=y
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else
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echo "portscan? (y/n) (default: y)"
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read portscan
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fi
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if [[ "$portscan" = "y" ]] || [[ -z "$portscan" ]]; then
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echo "-------------------Portscan---------------------"
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nmap $only --reason -Pn $host
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echo ""
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fping $only -c 4 $host
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echo "------------------------------------------------"
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echo ""
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else
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echo ""
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fi
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fi
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done
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fi
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}
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if [[ -n $1 ]];then
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prepare "$@"
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main "$hosts"
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elif [[ "$1" == "-u" ]];then
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run_update
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elif [[ "$1" == "-h" ]];then
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check_update
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echo "$show_help"
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else
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check_update
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echo "$show_help"
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fi
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