farside/tools/un-cloudflare.sh

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#!/bin/bash
# Remove cloudflare instances from services-full.json
rm -f out.json
file="services-full.json"
while read -r line; do
if [[ "$line" == "\"https://"* ]]; then
domain=$(echo "$line" | sed -e "s/^\"https:\/\///" -e "s/\",//" -e "s/\"//" | awk -F '|' '{print $1}')
ips=$(dig "$domain" +short || true)
cf=0
echo "$domain"
for ip in $ips
do
echo " - $ip"
resp=$(curl --connect-timeout 5 --max-time 5 -s "$ip")
# Cloudflare does not allow accessing sites using their IP,
# and returns a 1003 error code when attempting to do so. This
# allows us to check for sites using Cloudflare for proxying,
# rather than just their nameservers.
if [[ "$resp" == *"error code: 1003"* ]]; then
cf=1
echo " ! Using cloudflare proxy, skipping..."
break
fi
done
if [ $cf -eq 0 ]; then
echo "$line" >> out.json
fi
else
echo "$line" >> out.json
fi
done <$file
# Remove any trailing commas from new instance lists
sed -i -e ':begin' -e '$!N' -e 's/,\n]/\n]/g' -e 'tbegin' -e 'P' -e 'D' out.json
cat out.json | jq --indent 2 . > services.json
rm -f out.json