#!/bin/bash

if (( $# != 3 )); then

    echo "Usage: $0 <openssl-config> <certdir> <cadir>"

    echo

    echo "Positional arguments"

    echo "  <openssl-config>  OpenSSL configuration file"

    echo "  <certdir>         Destination directory for the generated files"

    echo "  <cadir>           Working directory for the generation process"

    exit 1

fi

set -euxo pipefail

# Generate all X.509 certificates for the tests

# The whole generation is done in a $CADIR to better represent how osbuild-ca

# it.

OPENSSL_CONFIG="$1"

CERTDIR="$2"

CADIR="$3"

# The $CADIR might exist from a previous test (current Schutzbot's imperfection)

rm -rf "$CADIR" || true

mkdir -p "$CADIR" "$CERTDIR"

# Convert the arguments to real paths so we can safely change working directory

OPENSSL_CONFIG="$(realpath "${OPENSSL_CONFIG}")"

CERTDIR="$(realpath "${CERTDIR}")"

CADIR="$(realpath "${CADIR}")"

pushd "$CADIR"

    mkdir certs private

    touch index.txt

    # Generate a CA.

    openssl req -config "$OPENSSL_CONFIG" \

        -keyout private/ca.key.pem \

        -new -nodes -x509 -extensions osbuild_ca_ext \

        -out ca.cert.pem -subj "/CN=osbuild.org"

    # Copy the private key to the location expected by the tests

    cp ca.cert.pem "$CERTDIR"/ca-crt.pem

    # Generate a composer certificate.

    openssl req -config "$OPENSSL_CONFIG" \

        -keyout "$CERTDIR"/composer-key.pem \

        -new -nodes \

        -out /tmp/composer-csr.pem \

        -subj "/CN=localhost/emailAddress=osbuild@example.com" \

        -addext "subjectAltName=DNS:localhost, DNS:composer"

    openssl ca -batch -config "$OPENSSL_CONFIG" \

        -extensions osbuild_server_ext \

        -in /tmp/composer-csr.pem \

        -out "$CERTDIR"/composer-crt.pem

    # Generate a worker certificate.

    openssl req -config "$OPENSSL_CONFIG" \

        -keyout "$CERTDIR"/worker-key.pem \

        -new -nodes \

        -out /tmp/worker-csr.pem \

        -subj "/CN=localhost/emailAddress=osbuild@example.com" \

        -addext "subjectAltName=DNS:localhost, DNS:worker"

    openssl ca -batch -config "$OPENSSL_CONFIG" \

        -extensions osbuild_client_ext \

        -in /tmp/worker-csr.pem \

        -out "$CERTDIR"/worker-crt.pem

    # Generate a client certificate.

    openssl req -config "$OPENSSL_CONFIG" \

        -keyout "$CERTDIR"/client-key.pem \

        -new -nodes \

        -out /tmp/client-csr.pem \

        -subj "/CN=client.osbuild.org/emailAddress=osbuild@example.com" \

        -addext "subjectAltName=DNS:client.osbuild.org"

    openssl ca -batch -config "$OPENSSL_CONFIG" \

        -extensions osbuild_client_ext \

        -in /tmp/client-csr.pem \

        -out "$CERTDIR"/client-crt.pem

    # Client keys are used by tests to access the composer APIs. Allow all users access.

    chmod 644 "$CERTDIR"/client-key.pem

    # Generate a kojihub certificate.

    openssl req -config "$OPENSSL_CONFIG" \

        -keyout "$CERTDIR"/kojihub-key.pem \

        -new -nodes \

        -out /tmp/kojihub-csr.pem \

        -subj "/CN=localhost/emailAddress=osbuild@example.com" \

        -addext "subjectAltName=DNS:localhost"

    openssl ca -batch -config "$OPENSSL_CONFIG" \

        -extensions osbuild_server_ext \

        -in /tmp/kojihub-csr.pem \

        -out "$CERTDIR"/kojihub-crt.pem

popd