#!/bin/bash
set -euo pipefail

export JAVA_HOME=$(readlink -f /usr/bin/javac | sed "s:/bin/javac::")
export JRE_HOME="$JAVA_HOME/jre"
export JAVA_BINARY="$JRE_HOME/bin/java"
export JAVA_VERSION=$("$JAVA_BINARY" -version 2>&1 | awk -F '"' '/version/ {print $2}')


# Setup Catalina Opts
: ${CATALINA_CONNECTOR_PROXYNAME:=}
: ${CATALINA_CONNECTOR_PROXYPORT:=}
: ${CATALINA_CONNECTOR_SCHEME:=http}
: ${CATALINA_CONNECTOR_SECURE:=false}

: ${CATALINA_OPTS:=}

CATALINA_OPTS="${CATALINA_OPTS} -DcatalinaConnectorProxyName=${CATALINA_CONNECTOR_PROXYNAME}"
CATALINA_OPTS="${CATALINA_OPTS} -DcatalinaConnectorProxyPort=${CATALINA_CONNECTOR_PROXYPORT}"
CATALINA_OPTS="${CATALINA_OPTS} -DcatalinaConnectorScheme=${CATALINA_CONNECTOR_SCHEME}"
CATALINA_OPTS="${CATALINA_OPTS} -DcatalinaConnectorSecure=${CATALINA_CONNECTOR_SECURE}"

export CATALINA_OPTS


# Start Confluence as the correct user
if [ "${UID}" -eq 0 ]; then
    echo "User is currently root. Will change directory ownership to ${RUN_USER}:${RUN_GROUP}, then downgrade permission to ${RUN_USER}"
    PERMISSIONS_SIGNATURE=$(stat -c "%u:%U:%a" "${CONFLUENCE_HOME}")
    EXPECTED_PERMISSIONS=$(id -u ${RUN_USER}):${RUN_USER}:700
    if [ "${PERMISSIONS_SIGNATURE}" != "${EXPECTED_PERMISSIONS}" ]; then
        chmod -R 700 "${CONFLUENCE_HOME}" &&
            chown -R "${RUN_USER}:${RUN_GROUP}" "${CONFLUENCE_HOME}"
    fi
    # Now drop privileges
    exec su -s /bin/bash "${RUN_USER}" -c "$CONFLUENCE_INSTALL_DIR/bin/start-confluence.sh $@"
else
    exec "$CONFLUENCE_INSTALL_DIR/bin/start-confluence.sh" "$@"
fi