real-world-onion-sites/get-ct-log.sh

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#!/bin/sh
log=ct-log.md
tf=/tmp/ctget$$.txt
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curl "https://crt.sh/?q=\.onion" |
perl -nle 'next unless m!TD.*\.onion\b!; s!\s+!\n!go; s!</?TD>!\n!goi; s!<BR>!\n!goi; print' |
egrep '[2-7a-z]{56}\.onion$' |
sort -u |
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awk -F. '{print $(NF-1), $0}' |
sort |
awk 'BEGIN {print "# Onion Certificate Transparency Log";print "## This file is auto-generated (without editorial assistance) from CA certificate issuance logs"} $2~/^\*/{print "* *wildcard* `" $2 "`"; next} {url = "https://" $2; printf("* [`%s`](%s)\n",url,url)}' >$tf
test -s $tf && cp $tf $log
rm $tf
exit 0