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🐛 fix(dns): improve DNS availability check logic

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This commit is contained in:
Ivan K
2025-05-12 17:21:38 +03:00
parent 47d1b349c7
commit 77ce0c380b
1 changed files with 7 additions and 8 deletions
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15
podkop/files/usr/bin/podkop
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@@ -2220,21 +2220,20 @@ check_dns_available() {
local result=$(echo "$dns_query" | base64 -d | curl -H "Content-Type: application/dns-message" \
-H "Accept: application/dns-message" \
--data-binary @- \
--connect-timeout 5 -s -w "%{size_download}" \
-o /dev/null \
--connect-timeout 5 -s \
"https://$dns_server/dns-query" 2>/dev/null)
if [ $? -eq 0 ] && [ -n "$result" ] && [ "$result" -ge 40 ] && [ "$result" -le 100 ]; then
if [ $? -eq 0 ] && [ -n "$result" ]; then
is_available=1
status="available"
else
# Try GET method as fallback
# Try GET method as fallback, remove padding from base64
local dns_query_no_padding=$(echo "$dns_query" | tr -d '=')
result=$(curl -H "accept: application/dns-message" \
--connect-timeout 5 -s -w "%{size_download}" \
-o /dev/null \
"https://$dns_server/dns-query?dns=$(echo "$dns_query" | tr -d '\n')" 2>/dev/null)
--connect-timeout 5 -s \
"https://$dns_server/dns-query?dns=$dns_query_no_padding" 2>/dev/null)
if [ $? -eq 0 ] && [ -n "$result" ] && [ "$result" -ge 40 ] && [ "$result" -le 100 ]; then
if [ $? -eq 0 ] && [ -n "$result" ]; then
is_available=1
status="available"
fi