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dnsleaktest.sh
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dnsleaktest.sh
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#!/usr/bin/env bash
RED='\033[0;31m'
BOLD='\033[1m'
NC='\033[0m'
api_domain='bash.ws'
error_code=1
function increment_error_code {
error_code=$((error_code + 1))
}
function echo_bold {
echo -e "${BOLD}${1}${NC}"
}
function echo_error {
(>&2 echo -e "${RED}${1}${NC}")
}
function program_exit {
command -v $1 > /dev/null
if [ $? -ne 0 ]; then
echo_error "Please, install \"$1\""
exit $error_code
fi
increment_error_code
}
function check_internet_connection {
curl --silent --head --request GET "https://${api_domain}" | grep "200 OK" > /dev/null
if [ $? -ne 0 ]; then
echo_error "No internet connection."
exit $error_code
fi
increment_error_code
}
program_exit curl
program_exit ping
program_exit jq
check_internet_connection
if hash shuf 2>/dev/null; then
id=$(shuf -i 1000000-9999999 -n 1)
else
id=$(jot -w %i -r 1 1000000 9999999)
fi
for i in {1..10};do
ping -c 1 "${i}.${id}.${api_domain}" > /dev/null 2>&1
done
result=$(curl --silent "https://${api_domain}/dnsleak/test/${id}?json")
function print_servers {
jq --monochrome-output \
--raw-output \
".[] | select(.type == \"${1}\") | \"\(.ip)\(if .country_name != \"\" and .country_name != false then \" [\(.country_name)\(if .asn != \"\" and .asn != false then \" \(.asn)\" else \"\" end)]\" else \"\" end)\"" \
<<< ${result}
}
echo_bold "Your IP:"
print_servers "ip"
echo ""
dns_count=$(jq 'map(select(.type == "dns")) | length' <<< ${result})
if [ ${dns_count} -eq "0" ];then
echo_bold "No DNS servers found"
else
if [ ${dns_count} -eq "1" ];then
echo_bold "You use ${dns_count} DNS server:"
else
echo_bold "You use ${dns_count} DNS servers:"
fi
print_servers "dns"
fi
echo ""
echo_bold "Conclusion:"
jq --monochrome-output --raw-output '.[] | select(.type == "conclusion") | .ip' <<< ${result}
exit 0