# Get relay version

get_relay_version() {

local ext=$1

if [[ "$ext" =~ ^relay$ ]]; then

get -s -n "" "${relay_release:?}"

elif [[ $ext =~ ^relay-nightly$ ]]; then

echo "dev"

else

relay_version="${ext##*-}"

echo "v${relay_version/v//}"

fi

}

# Get OS suffix in relay artifact URL.

get_os_suffix() {

if [ "$os" = "Linux" ]; then

if [[ "$ID" =~ ubuntu|debian ]]; then

echo debian

elif [ "$ID" = "centos" ]; then

echo centos"$VERSION_ID"

else

echo "$ID"

fi

else

echo darwin

fi

}

# Get openssl suffix in relay artifact URL.

get_openssl_suffix() {

openssl_3=$(php -r "echo strpos(OPENSSL_VERSION_TEXT, 'SSL 3') !== false;")

[ "$openssl_3" = "1" ] && echo '+libssl3' || echo ''

}

# Change library paths in relay binary.

change_library_paths() {

if [ "$os" = "Darwin" ]; then

otool -L "${ext_dir:?}"/relay.so | grep -q 'ssl.3.' && openssl_version='3' || openssl_version='1.1'

[ -e "${brew_prefix:?}"/opt/openssl@"$openssl_version" ] || {

safe_brew install --skip-link openssl@"$openssl_version" &&

brew link --overwrite --force openssl@"$openssl_version"

}

dylibs="$(otool -L "${ext_dir:?}"/relay.so | grep -Eo '.*\.dylib' | cut -f1 -d ' ')"

install_name_tool -change "$(echo "${dylibs}" | grep -E "libzstd.*dylib" | xargs)" "$brew_prefix"/opt/zstd/lib/libzstd.dylib "$ext_dir"/relay.so

install_name_tool -change "$(echo "${dylibs}" | grep -E "liblz4.*dylib" | xargs)" "$brew_prefix"/opt/lz4/lib/liblz4.dylib "$ext_dir"/relay.so

install_name_tool -change "$(echo "${dylibs}" | grep -E "libssl.*dylib" | xargs)" "$brew_prefix"/opt/openssl@"$openssl_version"/lib/libssl.dylib "$ext_dir"/relay.so

install_name_tool -change "$(echo "${dylibs}" | grep -E "libcrypto.*dylib" | xargs)" "$brew_prefix"/opt/openssl@"$openssl_version"/lib/libcrypto.dylib "$ext_dir"/relay.so

install_name_tool -change "$(echo "${dylibs}" | grep -E "libck.*dylib" | xargs)" "$brew_prefix"/opt/concurrencykit/lib/libck.dylib "$ext_dir"/relay.so

fi

}

# Add relay dependencies

add_relay_dependencies() {

add_extension json

add_extension msgpack

add_extension igbinary

if [ "$os" = "Darwin" ]; then

. "${0%/*}"/tools/brew.sh

configure_brew

safe_brew install lz4 hiredis zstd concurrencykit

fi

}

# Initialize relay extension ini configuration

init_relay_ini() {

without_trace init_relay_ini_helper "$@"

}

init_relay_ini_helper() {

relay_ini=$1

if [ -e "$relay_ini" ]; then

if [[ -n "$RELAY_KEY" ]]; then

sudo sed -i.bak "s/^; relay.key =.*/relay.key = $RELAY_KEY/" "$relay_ini"

fi

if [[ -n "$RELAY_ENVIRONMENT" ]]; then

sudo sed -i.bak "s/^; relay.environment =.*/relay.environment = $RELAY_ENVIRONMENT/" "$relay_ini"

fi

if [[ -n "$RELAY_EVICTION_POLICY" ]]; then

sudo sed -i.bak "s/^; relay.eviction_policy =.*/relay.eviction_policy = $RELAY_EVICTION_POLICY/" "$relay_ini"

fi

if [[ -n "$RELAY_MAX_MEMORY" ]]; then

sudo sed -i.bak "s/^; relay.maxmemory =.*/relay.maxmemory = $RELAY_MAX_MEMORY/" "$relay_ini"

fi

sudo rm -rf "$relay_ini".bak

fi

}

# Enable relay extension

enable_relay() {

relay_ini=$1

if [ -e "$relay_ini" ]; then

init_relay_ini "$relay_ini"

if [ "$os" = "Linux" ]; then

sudo cp "$relay_ini" "${ini_dir:?}"/../mods-available/relay.ini

sudo phpenmod -v "${version:?}" relay

else

sudo cp "${relay_ini}" "${scan_dir:?}"/60-relay.ini

fi

fi

}

# Patch binary id in relay extension

init_relay_binary_id() {

if [ -e "${ext_dir:?}"/relay.so ]; then

sudo LC_ALL=C sed -i.bak "s/00000000-0000-0000-0000-000000000000/$(uuidgen)/" "$ext_dir"/relay.so || true

fi

}

# Configure relay extension

configure_relay() {

change_library_paths

init_relay_binary_id

enable_relay "${ext_dir}"/relay.ini

}

# Helper function to add relay extension

add_relay_helper() {

local arch=$1

os_suffix="$(get_os_suffix)"

openssl_suffix="$(get_openssl_suffix)"

artifact_file_name="relay-$relay_version-php${version:?}-$os_suffix-$arch$openssl_suffix.tar.gz"

url="$relay_trunk"/"$relay_version"/"$artifact_file_name"

get -q -n /tmp/relay.tar.gz "$url"

if (! [ -e /tmp/relay.tar.gz ] || ! file /tmp/relay.tar.gz | grep -q 'gzip'); then

if [ "$openssl_suffix" = '+libssl3' ]; then

get -q -n /tmp/relay.tar.gz "${url/+libssl3/}"

else

get -q -n /tmp/relay.tar.gz "${url/.tar/+libssl3.tar}"

fi

fi

if [ -e /tmp/relay.tar.gz ] && file /tmp/relay.tar.gz | grep -q 'gzip'; then

sudo tar --strip-components=1 -xzf /tmp/relay.tar.gz -C "${ext_dir:?}"

sudo mv "${ext_dir:?}"/relay-pkg.so "${ext_dir:?}"/relay.so

fi

}

# Add relay extension

add_relay() {

local ext=$1

local arch

local url

local message

local error

os=$(uname -s)

arch="$(uname -m | sed 's/_/-/')"

relay_release=https://builds.r2.relay.so/meta/latest

relay_trunk=https://builds.r2.relay.so

if [[ "$arch" = "x86-64" && "$os" = "Darwin" ]]; then

error="Relay extension is not available for macOS x86_64 architecture"

else

relay_version=$(get_relay_version "$ext")

add_relay_dependencies >/dev/null 2>&1

if shared_extension relay; then

message="Enabled"

else

add_relay_helper "$arch" >/dev/null 2>&1

message="Installed and enabled ${relay_version}"

fi

configure_relay >/dev/null 2>&1

fi

add_extension_log relay "$message" "$error"

}