Created
July 26, 2021 07:27
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#!/usr/bin/env bash | |
# The author is https://github.com/macvk/dnsleaktest | |
# Many thanks! | |
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 $error_code | |
fi | |
increment_error_code | |
} | |
program_exit curl | |
program_exit ping | |
check_internet_connection | |
if command -v jq &> /dev/null; then | |
jq_exists=1 | |
else | |
jq_exists=0 | |
fi | |
if hash shuf 2>/dev/null; then | |
id=$(shuf -i 1000000-9999999 -n 1) | |
else | |
id=$(jot -w %i -r 1 1000000 9999999) | |
fi | |
for i in $(seq 1 10); do | |
ping -c 1 "${i}.${id}.${api_domain}" > /dev/null 2>&1 | |
done | |
function print_servers { | |
if (( $jq_exists )); then | |
echo ${result_json} | \ | |
jq --monochrome-output \ | |
--raw-output \ | |
".[] | select(.type == \"${1}\") | \"\(.ip)\(if .country_name != \"\" and .country_name != false then \" [\(.country_name)\(if .asn != \"\" and .asn != false then \" \(.asn)\" else \"\" end)]\" else \"\" end)\"" | |
else | |
while IFS= read -r line; do | |
if [[ "$line" != *${1} ]]; then | |
continue | |
fi | |
ip=$(echo $line | cut -d'|' -f 1) | |
code=$(echo $line | cut -d'|' -f 2) | |
country=$(echo $line | cut -d'|' -f 3) | |
asn=$(echo $line | cut -d'|' -f 4) | |
if [ -z "${ip// }" ]; then | |
continue | |
fi | |
if [ -z "${country// }" ]; then | |
echo "$ip" | |
else | |
if [ -z "${asn// }" ]; then | |
echo "$ip [$country]" | |
else | |
echo "$ip [$country, $asn]" | |
fi | |
fi | |
done <<< "$result_txt" | |
fi | |
} | |
if (( $jq_exists )); then | |
result_json=$(curl --silent "https://${api_domain}/dnsleak/test/${id}?json") | |
else | |
result_txt=$(curl --silent "https://${api_domain}/dnsleak/test/${id}?txt") | |
fi | |
dns_count=$(print_servers "dns" | wc -l) | |
echo_bold "Your IP:" | |
print_servers "ip" | |
echo "" | |
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:" | |
print_servers "conclusion" | |
exit 0 |
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