Certificate Transparency Bash Functions

get_certs.sh

#!/bin/bash
# Add these functions to your .bashrc or .zshrc and use from your terminal.

get_certs_domains() {
  	# Credit goes to Ronnie Flathers, taken from https://twitter.com/ropnop/status/972151279463124994
	curl -s https://crt.sh\?q\=%25.$1 | awk -v pattern="<TD>.*$1" '$0 ~ pattern {gsub("<[^>]*>","");gsub(//,""); print}' | sort -u
}
get_certs() {
	curl -s https://crt.sh\?q\=%25.$1 | awk '/\?id=[0-9]*/{nr[NR]; nr[NR+1]; nr[NR+3]; nr[NR+4]}; NR in nr' | sed 's/<TD style="text-align:center"><A href="?id=//g' | sed 's#">[0-9]*</A></TD>##g' | sed 's#<TD style="text-align:center">##g' | sed 's#</TD>##g' | sed 's#<TD>##g' | sed 's#<A style=["a-z: ?=0-9-]*>##g' | sed 's#</A>##g' | sed 'N;N;N;s/\n/\t\t/g'
}
get_certs_to_csv() {
	echo 'ID,Logged At,Identity,Issuer Name' > $1.csv
	curl -s https://crt.sh\?q\=%25.$1 | awk '/\?id=[0-9]*/{nr[NR]; nr[NR+1]; nr[NR+3]; nr[NR+4]}; NR in nr' | sed 's/<TD style="text-align:center"><A href="?id=//g' | sed 's#">[0-9]*</A></TD>##g' | sed 's#<TD style="text-align:center">##g' | sed 's#</TD>##g' | sed 's#<TD>##g' | sed 's#<A style=["a-z: ?=0-9-]*>##g' | sed 's#</A>##g' | sed 's/,/;/g' | sed 'N;N;N;s/\n/,/g' | sed 's/,[ ]*/,/g' | sed 's/^[ ]*//g' >> $1.csv
}

# Example
$ get_certs_domains mikeabreu.com
    www.mikeabreu.com
    api.mikeabreu.com
    
# Example
$ get_certs mikeabreu.com
    328469607		    2018-02-12		    www.mikeabreu.com		    C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
    276563784		    2017-12-12		    www.mikeabreu.com		    C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
    221039748		    2017-09-30		    api.mikeabreu.com		    C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
    
# Example
$ get_certs_to_csv mikeabreu.com
$ cat mikeabreu.com.csv
ID,Logged At,Identity,Issuer Name
328469607,2018-02-12,www.mikeabreu.com,C=US; O=Let's Encrypt; CN=Let's Encrypt Authority X3
276563784,2017-12-12,www.mikeabreu.com,C=US; O=Let's Encrypt; CN=Let's Encrypt Authority X3
221039748,2017-09-30,www.mikeabreu.com,C=US; O=Let's Encrypt; CN=Let's Encrypt Authority X3