entrypoint.sh

#!/bin/bash

set -e

EULA=$EULA
MCBE_HOME=${MCBE_HOME:-"/mcbe"}
ADDONS_PATH=${ADDONS_PATH:-"/mcbe/data/addons"}
ARTIFACTS_PATH=${ARTIFACTS_PATH:-"/mcbe/data/artifacts"}
DATA_PATH=${DATA_PATH:-"/mcbe/data"}
DOWNLOAD_ENDPOINT=${DOWNLOAD_ENDPOINT:-"https://minecraft.azureedge.net/bin-linux"}
EXEC_NAME="cbwx-mcbe-${SERVER_NAME// /-}-server"
PERMISSIONS_FILE=${PERMISSIONS_FILE:-"/mcbe/data/permissions.json"}
PERMISSIONS_LOOKUP=${PERMISSIONS_LOOKUP:-"true"}
PERMISSIONS_MODE=${PERMISSIONS_MODE:-"static"}
SEEDS_FILE=${SEEDS_FILE:-"/mcbe/seeds.txt"}
SERVER_PATH=${SERVER_PATH:-"/mcbe/server"}
SERVER_PROPERTIES=${SERVER_PROPERTIES:-"/mcbe/server/server.properties"}
VERSION=${VERSION:-"LATEST"}
VERSIONS_FILE=${VERSIONS_FILE:-"/mcbe/versions.txt"}
WHITELIST_ENABLE=${WHITELIST_ENABLE:-"false"}
WHITELIST_FILE=${WHITELIST_FILE:-"/mcbe/data/whitelist.json"}
WHITELIST_LOOKUP=${WHITELIST_LOOKUP:-"true"}
WHITELIST_MODE=${WHITELIST_MODE:-"static"}
XBL_LOOKUP_URL=${XBL_LOOKUP_URL:-"https://api.cubeworx.io/mcbe/lookup"}

check_data_dir() {
  DIR_NAME=$1
  if [ ! -d "${DATA_PATH}/${DIR_NAME}" ]; then
    echo "Creating directory: ${DATA_PATH}/${DIR_NAME}"
    mkdir -p $DATA_PATH/$DIR_NAME
  fi
}

get_latest_version() {
  WEBSITE_DATA=$(curl -Ss -A "cubeworx/mcbe-server" -H "accept-language:*" https://www.minecraft.net/en-us/download/server/bedrock)
  #Check if website curl worked, if not default to latest from versions.txt
  if [[ $(echo $WEBSITE_DATA | grep $DOWNLOAD_ENDPOINT | wc -l) -ne 0 ]]; then
    LATEST_URL=$(echo $WEBSITE_DATA | grep -o 'https://minecraft.azureedge.net/bin-linux/[^"]*')
    VERSION=$(echo $LATEST_URL | awk -F '-linux/' '{print $2}' | awk -F 'server-' '{print $2}' | awk -F '.zip' '{print $1}')
    echo "Latest version available is: ${VERSION}"
  else
    echo "ERROR: Unable to determine latest version, defaulting to latest in ${VERSIONS_FILE}"
    VERSION=$(head -n 1 $VERSIONS_FILE)
  fi
  if [ ! -f "${ARTIFACTS_PATH}/bedrock-server-${VERSION}.zip" ]; then
    download_file $DOWNLOAD_ENDPOINT/bedrock-server-$VERSION.zip $ARTIFACTS_PATH/bedrock-server-$VERSION.zip
  fi
}

download_file(){
  DOWNLOAD_URL=$1
  DOWNLOAD_FILE=$2
  echo "Downloading ${DOWNLOAD_URL} to ${DOWNLOAD_FILE}"
  curl -Ss $DOWNLOAD_URL -o $DOWNLOAD_FILE
  if [ ! -f $DOWNLOAD_FILE ]; then
    echo "ERROR: File failed to download!"
    exit 1
  fi
}

extract_server_zip() {
  if [ ! -d "${SERVER_PATH}" ]; then
    mkdir -p $SERVER_PATH
  fi
  echo "Unzipping ${ARTIFACTS_PATH}/bedrock-server-${VERSION}.zip to ${SERVER_PATH}"
  unzip -q $ARTIFACTS_PATH/bedrock-server-$VERSION.zip -d $SERVER_PATH
  #If permissions.json in server directory exists, delete and create symlink to file in data dir
  if [ -f "${SERVER_PATH}/permissions.json" ] && [ ! -L "${SERVER_PATH}/permissions.json" ]; then
    rm -rf $SERVER_PATH/permissions.json
    echo "Creating symlink ${SERVER_PATH}/permissions.json to ${PERMISSIONS_FILE}"
    ln -s $PERMISSIONS_FILE $SERVER_PATH/permissions.json
  fi
  #If whitelist.json in server directory exists, delete and create symlink to file in data dir
  if [ -f "${SERVER_PATH}/whitelist.json" ] && [ ! -L "${SERVER_PATH}/whitelist.json" ]; then
    rm -rf $SERVER_PATH/whitelist.json
    echo "Creating symlink ${SERVER_PATH}/whitelist.json to ${WHITELIST_FILE}"
    ln -s $WHITELIST_FILE $SERVER_PATH/whitelist.json
  fi
  compare_version
  echo $VERSION > $DATA_PATH/version.txt
  echo "Renaming bedrock_server to ${EXEC_NAME} for easier host process identification."
  mv $SERVER_PATH/bedrock_server $SERVER_PATH/$EXEC_NAME
  chmod +x $SERVER_PATH/$EXEC_NAME
}

compare_version() {
  if [ -f "${DATA_PATH}/version.txt" ]; then
    OLD_VER=$(cat $DATA_PATH/version.txt)
    if [[ "x${OLD_VER}" != "x${VERSION}" ]]; then
      DATE_TIME=$(date +%Y%m%d%H%M%S)
      echo "Previous version was ${OLD_VER}, current version is ${VERSION}"
      echo "Creating backup of data before version change."
      echo "Backup file: ${DATA_PATH}/backups/${DATE_TIME}_${LEVEL_NAME// /-}_${OLD_VER}_to_${VERSION}.mcworld"
      zip -r $DATA_PATH/backups/${DATE_TIME}_${LEVEL_NAME// /-}_${OLD_VER}_to_${VERSION}.mcworld $DATA_PATH/worlds
    fi
  fi
}

check_symlinks() {
  LINK_NAME=$1
  if [ ! -L "${SERVER_PATH}/${LINK_NAME}" ]; then
    echo "Creating symlink ${SERVER_PATH}/${LINK_NAME} to ${DATA_PATH}/${LINK_NAME}"
    ln -s $DATA_PATH/$LINK_NAME $SERVER_PATH/$LINK_NAME
  fi
}

#Check EULA
if [[ "x${EULA^^}" != "xTRUE" ]]; then
  echo "ERROR: EULA variable must be TRUE!"
  echo "See https://minecraft.net/terms"
  exit 1
fi
#Check necessary data directories
for DIR_NAME in addons backups artifacts worlds ; do
  check_data_dir $DIR_NAME
done
#Check if already initialized
if [ ! -f "${SERVER_PATH}/${EXEC_NAME}" ]; then
  SERVER_INITIALIZED="false"
  echo "Initializing new container."
  #Determine download version
  if [[ "x${VERSION^^}" == "xLATEST" ]]; then
    echo "Checking https://www.minecraft.net for latest version number."
    get_latest_version
  else
    if [ ! -f "${ARTIFACTS_PATH}/bedrock-server-${VERSION}.zip" ]; then
      download_file $DOWNLOAD_ENDPOINT/bedrock-server-$VERSION.zip $ARTIFACTS_PATH/bedrock-server-$VERSION.zip
    fi
  fi
  #Unzip server artifact if $SERVER_PATH doesn't exist
  if [ -f "${ARTIFACTS_PATH}/bedrock-server-${VERSION}.zip" ]; then
    extract_server_zip
  fi
else
  #If already initialized, need to read in version & not lookup users
  SERVER_INITIALIZED="true"
  echo "###########################################"
  echo "Already initialized. Did container restart?"
  VERSION=$(cat $DATA_PATH/version.txt)
fi
#Check necessary symlinks
for LINK_NAME in worlds Dedicated_Server.txt ; do
  check_symlinks $LINK_NAME
done
#Update server.properties
source $MCBE_HOME/scripts/server-properties.sh
update_server_properties
#Check permissions & whitelist
source $MCBE_HOME/scripts/permissions-whitelist.sh
check_whitelist
check_permissions
create_cache_files
#Check addons
source $MCBE_HOME/scripts/addons.sh
check_addons
#Check pack directories
for PACK_TYPE in behavior_packs resource_packs ; do
  check_pack_type $PACK_TYPE
done

echo "Starting Minecraft Bedrock Server Version ${VERSION} with the following configuration:"
echo "########## SERVER PROPERTIES ##########"
cat $SERVER_PROPERTIES | grep "=" | grep -v "\#" | sort
echo "###############################"
echo ""
echo "########## PERMISSIONS ##########"
cat $PERMISSIONS_FILE
echo "#################################"
echo ""
echo "########## WHITELIST ##########"
cat $WHITELIST_FILE
echo "#################################"
cd $SERVER_PATH/
export LD_LIBRARY_PATH=.
exec ./$EXEC_NAME