#!/bin/bash

# exit immediately if any command returns non-zero exit code
set -e

# print commands as they are executed by the shell interpreter
set -x

# global constants
HOST="localhost"
PORT="1234"
PKEY="./pkey.pem"
CERT="./cert.pem"
CURL_OUT="./curl.out"
CURL_ERR="./curl.err"
NGHTTP_OUT="./nghttp.out"
NGHTTP_ERR="./nghttp.err"
SELF="./runtest.sh"
URL="https://${HOST}:${PORT}/${SELF}"

# print versions of related pkgs
PKGS="$(set +x; eval echo {lib,}curl {lib,}nghttp2 openssl{,-libs})"
rpm -q $PKGS | sort -V
rpm -V $PKGS

# print full path of used commands
(set +x
    for i in curl nghttp{,d} openssl; do
        (set -x; command -v $i)
    done
)

# make sure that $SELF exists
pwd
file -E $SELF

# create a self-signed certificate
openssl req -x509 -newkey rsa:4096 -sha256 -days 3650           \
    -subj /CN=${HOST} -addext subjectAltName=DNS:${HOST}        \
    -nodes -keyout $PKEY -out $CERT

# run nghttpd in the background
nghttpd -d "$PWD" $PORT $PKEY $CERT &
NGHTTPD_PID=$!

# FIXME: wait for open port instead
sleep 2

# transfer the contents of this script over HTTP/2 using curl
curl --cacert $CERT --fail --silent --verbose $URL              \
    > $CURL_OUT 2> $CURL_ERR

# check whether the received data matches the original contents
diff $SELF $CURL_OUT

# check that we made a successful HTTP/2 request with curl
grep '^< HTTP/2 200' $CURL_ERR

# transfer the contents of this script over HTTP/2 using nghttp
nghttp $URL > $NGHTTP_OUT

# check whether the received data matches the original contents
diff $SELF $NGHTTP_OUT

# kill nghttpd running in the background
kill $NGHTTPD_PID

# wait till the background process finishes
wait