Whitelist self-signed certs on OS X

whitelist_ssl_certificate.sh

#!/usr/bin/env bash -e

SERVERNAME=$(echo "$1" | sed -E -e 's/https?:\/\///' -e 's/\/.*//')
echo "$SERVERNAME"

if [[ "$SERVERNAME" =~ .*\..* ]]; then
    echo "Adding certificate for $SERVERNAME"
    echo -n | openssl s_client -connect $SERVERNAME:443 | sed -ne '/-BEGIN CERTIFICATE-/,/-END CERTIFICATE-/p' | tee /tmp/$SERVERNAME.cert
    sudo security add-trusted-cert -d -r trustRoot -k "$HOME/Library/Keychains/login.keychain" /tmp/$SERVERNAME.cert
else
    echo "Usage: $0 www.site.name"
    echo "http:// and such will be stripped automatically"
fi