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improve check_open_port() (#891)

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Daniel Hansson 2019-07-18 14:48:23 +02:00 committed by GitHub
parent 47638d083e
commit f2e590d10d
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1 changed files with 11 additions and 43 deletions
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lib.sh
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@ -518,52 +518,20 @@ certbot certonly --standalone --pre-hook "service apache2 stop" --post-hook "ser
# Check if port is open # check_open_port 443 domain.example.com
check_open_port() {
# Check to see if user already has nmap installed on their system
if [ "$(dpkg-query -s nmap 2> /dev/null | grep -c "ok installed")" == "1" ]
print_text_in_color "${ICyan}" "Checking if port ${1} is open with https://ports.yougetsignal.com..."
install_if_not curl
# WAN Adress
if check_command curl -s -H 'Cache-Control: no-cache' 'https://ports.yougetsignal.com/check-port.php' --data "remoteAddress=${WANIP4}&portNumber=${1}" | grep -q "is open on"
then
NMAPSTATUS=preinstalled
fi
apt update -q4 & spinner_loading
if [ "$NMAPSTATUS" = "preinstalled" ]
print_text_in_color "${IGreen}" "Port ${1} is open on ${WANIP4}!"
# Domain name
elif check_command curl -s -H 'Cache-Control: no-cache' 'https://ports.yougetsignal.com/check-port.php' --data "remoteAddress=${2}&portNumber=${1}" | grep -q "is open on"
then
print_text_in_color "$ICyan" "nmap is already installed..."
print_text_in_color "${IGreen}" "Port ${1} is open on ${2}!"
else
apt install nmap -y
fi
# Check if $1 is open using nmap, if not notify the user
if [ "$(nmap -sS -p "$1" "$WANIP4" | grep -c "open")" == "1" ]
then
print_text_in_color "${IGreen}" "Port $1 is open on $WANIP4!"
if [ "$NMAPSTATUS" = "preinstalled" ]
then
print_text_in_color "$ICyan" "nmap was previously installed, not removing."
else
apt remove --purge nmap -y
fi
else
whiptail --msgbox "Port $1 is not open on $WANIP4. We will do a second try on $2 instead." "$WT_HEIGHT" "$WT_WIDTH"
if [[ "$(nmap -sS -PN -p "$1" "$2" | grep -m 1 "open" | awk '{print $2}')" = "open" ]]
then
print_text_in_color "${IGreen}" "Port $1 is open on $2!"
if [ "$NMAPSTATUS" = "preinstalled" ]
then
print_text_in_color "$ICyan" "nmap was previously installed, not removing."
else
apt remove --purge nmap -y
fi
else
whiptail --msgbox "Port $1 is not open on $2. Please follow this guide to open ports in your router: https://www.techandme.se/open-port-80-443/" "$WT_HEIGHT" "$WT_WIDTH"
any_key "Press any key to exit... "
if [ "$NMAPSTATUS" = "preinstalled" ]
then
print_text_in_color "$ICyan" "nmap was previously installed, not removing."
else
apt remove --purge nmap -y
fi
exit 1
fi
msg_box "Port $1 is not open on either ${WANIP4} or ${2}.\n\nPlease follow this guide to open ports in your router or firewall:\nhttps://www.techandme.se/open-port-80-443/"
any_key "Press any key to exit..."
exit 1
fi
}