#!/bin/bash -
# Copyright (C) 2012 The Android Open Source Project
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

set -o nounset                              # Treat unset variables as an error
set -e

DIR=$(dirname "$0")

if [ ! -f "$DIR/privkey.pem" ]; then
    openssl genrsa -out "$DIR/privkey.pem" 2048
fi

openssl req -config "$DIR/default.cnf" -new -key "$DIR/privkey.pem" -nodes -batch > /tmp/cert-rsa-req.pem
openssl req -in /tmp/cert-rsa-req.pem -pubkey -noout | openssl rsa -pubin -pubout -outform der > "$DIR/cert-rsa-pubkey.der"
openssl x509 -extfile "$DIR/default.cnf" -days 3650 -extensions usr_cert -req -signkey "$DIR/privkey.pem" -outform d -set_serial -99999999999999999999 < /tmp/cert-rsa-req.pem > "$DIR/cert-rsa.der"
rm /tmp/cert-rsa-req.pem

openssl asn1parse -in "$DIR/cert-rsa.der" -inform d -out "$DIR/cert-rsa-tbs.der" -noout -strparse 4
SIG_OFFSET=$(openssl asn1parse -in "$DIR/cert-rsa.der" -inform d | tail -1 | cut -f1 -d:)
openssl asn1parse -in "$DIR/cert-rsa.der" -inform d -strparse "$SIG_OFFSET" -noout -out "$DIR/cert-rsa-sig.der"

# extract startdate and enddate
openssl x509 -in "$DIR/cert-rsa.der" -inform d -noout -startdate -enddate > "$DIR/cert-rsa-dates.txt"

# extract serial
openssl x509 -in "$DIR/cert-rsa.der" -inform d -noout -serial > "$DIR/cert-rsa-serial.txt"

openssl req -config "$DIR/default.cnf" -new -key "$DIR/privkey.pem" -nodes -batch | openssl x509 -extfile "$DIR/default.cnf" -extensions keyUsage_extraLong_cert -req -signkey "$DIR/privkey.pem" -outform d > "$DIR/cert-keyUsage-extraLong.der"

openssl req -config "$DIR/default.cnf" -new -key "$DIR/privkey.pem" -nodes -batch | openssl x509 -extfile "$DIR/default.cnf" -extensions extendedKeyUsage_cert -req -signkey "$DIR/privkey.pem" -outform d > "$DIR/cert-extendedKeyUsage.der"

openssl req -config "$DIR/default.cnf" -new -key "$DIR/privkey.pem" -nodes -batch | openssl x509 -extfile "$DIR/default.cnf" -extensions ca_cert -req -signkey "$DIR/privkey.pem" -outform d > "$DIR/cert-ca.der"

openssl req -config "$DIR/default.cnf" -new -key "$DIR/privkey.pem" -nodes -batch | openssl x509 -extfile "$DIR/default.cnf" -extensions userWithPathLen_cert -req -signkey "$DIR/privkey.pem" -outform d > "$DIR/cert-userWithPathLen.der"

openssl req -config "$DIR/default.cnf" -new -key "$DIR/privkey.pem" -nodes -batch | openssl x509 -extfile "$DIR/default.cnf" -extensions caWithPathLen_cert -req -signkey "$DIR/privkey.pem" -outform d > "$DIR/cert-caWithPathLen.der"

openssl req -config "$DIR/default.cnf" -new -key "$DIR/privkey.pem" -nodes -batch | openssl x509 -extfile "$DIR/default.cnf" -extensions alt_other_cert -req -signkey "$DIR/privkey.pem" -outform d > "$DIR/cert-alt-other.der"

openssl req -config "$DIR/default.cnf" -new -key "$DIR/privkey.pem" -nodes -batch | openssl x509 -extfile "$DIR/default.cnf" -extensions alt_email_cert -req -signkey "$DIR/privkey.pem" -outform d > "$DIR/cert-alt-email.der"

openssl req -config "$DIR/default.cnf" -new -key "$DIR/privkey.pem" -nodes -batch | openssl x509 -extfile "$DIR/default.cnf" -extensions alt_dns_cert -req -signkey "$DIR/privkey.pem" -outform d > "$DIR/cert-alt-dns.der"

openssl req -config "$DIR/default.cnf" -new -key "$DIR/privkey.pem" -nodes -batch | openssl x509 -extfile "$DIR/default.cnf" -extensions alt_dirname_cert -req -signkey "$DIR/privkey.pem" -outform d > "$DIR/cert-alt-dirname.der"

openssl req -config "$DIR/default.cnf" -new -key "$DIR/privkey.pem" -nodes -batch | openssl x509 -extfile "$DIR/default.cnf" -extensions alt_uri_cert -req -signkey "$DIR/privkey.pem" -outform d > "$DIR/cert-alt-uri.der"

openssl req -config "$DIR/default.cnf" -new -key "$DIR/privkey.pem" -nodes -batch | openssl x509 -extfile "$DIR/default.cnf" -extensions alt_rid_cert -req -signkey "$DIR/privkey.pem" -outform d > "$DIR/cert-alt-rid.der"

openssl req -config "$DIR/default.cnf" -new -key "$DIR/privkey.pem" -nodes -batch | openssl x509 -extfile "$DIR/default.cnf" -extensions alt_none_cert -req -signkey "$DIR/privkey.pem" -outform d > "$DIR/cert-alt-none.der"

openssl req -config "$DIR/default.cnf" -new -key "$DIR/privkey.pem" -nodes -batch | openssl x509 -extfile "$DIR/default.cnf" -extensions ipv6_cert -req -signkey "$DIR/privkey.pem" -outform d > "$DIR/cert-ipv6.der"

openssl req -config "$DIR/default.cnf" -new -key "$DIR/privkey.pem" -nodes -batch | openssl x509 -extfile "$DIR/default.cnf" -extensions unsupported_cert -req -signkey "$DIR/privkey.pem" -outform d > "$DIR/cert-unsupported.der"

openssl req -config "$DIR/default.cnf" -new -key "$DIR/privkey.pem" -nodes -batch -config "$DIR/default.cnf" -extensions usr_cert -x509 -sigopt rsa_padding_mode:pss -sigopt rsa_pss_saltlen:1 -outform d > "$DIR/cert-sigopt.der"

if [ ! -f "$DIR/dsapriv.pem" ]; then
    openssl dsaparam -out /tmp/dsaparam.pem 1024
    openssl gendsa -out "$DIR/dsapriv.pem" /tmp/dsaparam.pem
    rm -f /tmp/dsaparam.pem
fi
openssl req -config "$DIR/default.cnf" -new -key "$DIR/dsapriv.pem" -nodes -batch | openssl x509 -extfile "$DIR/default.cnf" -extensions keyUsage_cert -req -signkey "$DIR/dsapriv.pem" -outform d > "$DIR/cert-dsa.der"

if [ ! -f "$DIR/ecpriv.pem" ]; then
    openssl ecparam -name prime256v1 -genkey -out "$DIR/ecpriv.pem" -noout
fi
openssl req -config "$DIR/default.cnf" -new -key "$DIR/ecpriv.pem" -nodes -batch | openssl x509 -extfile "$DIR/default.cnf" -extensions keyUsage_critical_cert -req -signkey "$DIR/ecpriv.pem" -outform d > "$DIR/cert-ec.der"

# Create temporary CA for CRL generation
rm -rf /tmp/ca
mkdir -p /tmp/ca
touch /tmp/ca/index.txt
touch /tmp/ca/index.txt.attr
echo "01" > /tmp/ca/serial
if [ ! -f "$DIR/cakey.pem" ]; then
    openssl req -new -nodes -batch -x509 -extensions v3_ca -keyout "$DIR/cakey.pem" -out "$DIR/cacert.pem" -days 3650 -config "$DIR/default.cnf"
fi
cp "$DIR/cakey.pem" "$DIR/cacert.pem" /tmp
openssl x509 -in /tmp/cacert.pem -outform d > "$DIR/cert-crl-ca.der"

openssl ca -gencrl -crlhours 70 -keyfile /tmp/cakey.pem -cert /tmp/cacert.pem -out /tmp/crl-empty.pem -config "$DIR/default.cnf"
openssl crl -in /tmp/crl-empty.pem -outform d -out "$DIR/crl-empty.der"

openssl x509 -inform d -in "$DIR/cert-rsa.der" -out /tmp/cert-rsa.pem
openssl ca -revoke /tmp/cert-rsa.pem -keyfile /tmp/cakey.pem -cert /tmp/cacert.pem -config "$DIR/default.cnf"
openssl ca -gencrl -crlhours 70 -keyfile /tmp/cakey.pem -cert /tmp/cacert.pem -out /tmp/crl-rsa.pem -config "$DIR/default.cnf"
openssl crl -in /tmp/crl-rsa.pem -outform d -out "$DIR/crl-rsa.der"

openssl asn1parse -in "$DIR/crl-rsa.der" -inform d -out "$DIR/crl-rsa-tbs.der" -noout -strparse 4
SIG_OFFSET=$(openssl asn1parse -in "$DIR/crl-rsa.der" -inform d | tail -1 | cut -f1 -d:)
openssl asn1parse -in "$DIR/crl-rsa.der" -inform d -strparse "$SIG_OFFSET" -noout -out "$DIR/crl-rsa-sig.der"

openssl x509 -inform d -in "$DIR/cert-dsa.der" -out /tmp/cert-dsa.pem
openssl ca -revoke /tmp/cert-dsa.pem -keyfile /tmp/cakey.pem -cert /tmp/cacert.pem -crl_reason cessationOfOperation -extensions unsupported_cert -config "$DIR/default.cnf"
openssl ca -gencrl -startdate 140101010101Z -crldays 30 -keyfile /tmp/cakey.pem -cert /tmp/cacert.pem -out /tmp/crl-rsa-dsa.pem -config "$DIR/default.cnf"
openssl ca -gencrl -startdate 140101010101Z -crldays 30 -keyfile /tmp/cakey.pem -cert /tmp/cacert.pem -out "$DIR/crl-rsa-dsa-sigopt.pem" -config "$DIR/default.cnf" -sigopt rsa_padding_mode:pss -sigopt rsa_pss_saltlen:1
openssl crl -in /tmp/crl-rsa-dsa.pem -outform d -out "$DIR/crl-rsa-dsa.der"
openssl crl -in "$DIR/crl-rsa-dsa-sigopt.pem" -outform d -out "$DIR/crl-rsa-dsa-sigopt.der"

# Unsupported extensions
openssl ca -gencrl -crlexts unsupported_cert -keyfile /tmp/cakey.pem -cert /tmp/cacert.pem -out /tmp/crl-unsupported.pem -config "$DIR/default.cnf"
openssl crl -in /tmp/crl-unsupported.pem -outform d -out "$DIR/crl-unsupported.der"

openssl crl -inform d -in "$DIR/crl-rsa.der" -noout -lastupdate -nextupdate > "$DIR/crl-rsa-dates.txt"
openssl crl -inform d -in "$DIR/crl-rsa-dsa.der" -noout -lastupdate -nextupdate > "$DIR/crl-rsa-dsa-dates.txt"

rm /tmp/cert-rsa.pem /tmp/cert-dsa.pem /tmp/cacert.pem /tmp/cakey.pem /tmp/crl-rsa.pem /tmp/crl-rsa-dsa.pem /tmp/crl-unsupported.pem /tmp/crl-empty.pem
rm -r /tmp/ca


cat "$DIR/cert-rsa.der" "$DIR/cert-dsa.der" > /tmp/certs.der
openssl x509 -inform d -in "$DIR/cert-rsa.der" > /tmp/certs.pem
openssl x509 -inform d -in "$DIR/cert-dsa.der" >> /tmp/certs.pem

openssl crl2pkcs7 -certfile /tmp/certs.pem -nocrl > "$DIR/certs-pk7.pem"
openssl crl2pkcs7 -certfile /tmp/certs.pem -nocrl -outform d > "$DIR/certs-pk7.der"

rm /tmp/certs.pem