Steamcmd + Goldberg wrapper

steamcmd_wrapper.sh

#!/bin/bash
set -ex

export GAME="$1"

setup() {
    [[ -z "${GAME}" ]] && echo "Game name missing" && exit
    mkdir -p "${HOME}/SteamGames/${GAME}"
    cd "${HOME}/SteamGames"

    if [[ ! -f "${HOME}/SteamGames/steamcmd.sh" ]]; then
        curl -sqL "https://steamcdn-a.akamaihd.net/client/installer/steamcmd_linux.tar.gz" | tar zxvf -
    fi

    if [[ ! -e "${HOME}/.local/share/goldberg" ]]; then
        wget https://gitlab.com/Mr_Goldberg/goldberg_emulator/-/jobs/4247811310/artifacts/download -O goldberg.zip
        unzip goldberg.zip -d "${HOME}/.local/share/goldberg"
        rm goldberg.zip
    fi

    if [[ ! -f "${HOME}/SteamGames/.api_key" ]]; then
        echo "To use this script, you need to get your Steam API key."
        echo "You can obtain one by registering at https://steamcommunity.com/dev/apikey"
        echo "Enter your Steam API key:"
        until [[ -z ${API_KEY} ]]; do read -r API_KEY; done
        echo "API_KEY=${API_KEY}" >> "${HOME}/SteamGames/.api_key"
        export API_KEY
    else
        source "${HOME}/SteamGames/.api_key"
    fi

}

get_game_id() {
    if [[ -z ${GAME//[0-9]} ]]; then
        echo "Using given Game ID for fetching the game"
        APPID=${GAME}
    else
        set +x
        STEAMDB=$(curl -sS "http://api.steampowered.com/IStoreService/GetAppList/v1/?key=${API_KEY}&max_results=50000")
        APPID=$(echo "${STEAMDB}" | jq -r '.response.apps.[] | select (.name=="'"${GAME}"'") | .appid')
        LAST_APPID=$(echo ${STEAMDB} | jq -r '.response.apps.[-1].appid')

        while [[ -z ${APPID} && ${LAST_APPID} != ${CUR_APPID} ]]; do
           	STEAMDB=$(curl -sS "http://api.steampowered.com/IStoreService/GetAppList/v1/?key=${API_KEY}&max_results=50000&last_appid=${LAST_APPID}")
           	APPID=$(echo "${STEAMDB}" | jq -r '.response.apps.[] | select (.name=="'"${GAME}"'") | .appid')
           	CUR_APPID=${LAST_APPID}
           	LAST_APPID=$(echo ${STEAMDB} | jq -r '.response.apps.[-1].appid')
           	echo "Trying to find ${GAME} ID: ${APPID} parsing 50k list, last appid in the list ${LAST_APPID}"
        done
        [[ -z $APPID ]] && echo "$GAME is not a valid Steam Game name'; Please run ./$0 \"GAME NAME\" if your game contains spaces"
        echo "Found valid ${APPID} for ${GAME}"
        set -x
    fi

    export APPID
}

validate_login() {
    [[ -z "${STEAM_USER}" ]] && read -r -p "Steam username: " STEAM_USER
    [[ -z "${STEAM_PASSWORD}" ]] && read -r -p "Steam password: " STEAM_PASSWORD

    [[ -z "${STEAM_GUARD}" ]] && read -r -p "Do you have Steam Guard installed ?(y/n): " STEAM_GUARD
    until [[ "${STEAM_GUARD}" != 'y' || "${STEAM_GUARD}" != 'n' ]]; do read -r -p "Do you have Steam Guard installed ?(y/n): " STEAM_GUARD; done

    [[ "${STEAM_GUARD}" == "y" ]] && read -r -p "Input Steam Guard code: " STEAM_CODE;
    export STEAM_USER STEAM_PASSWORD STEAM_CODE STEAM_GUARD

    ${HOME}/SteamGames/steamcmd.sh +login "${STEAM_USER}" "${STEAM_PASSWORD}" "${STEAM_CODE}" +quit
    return $?
}

login() {
    if [[ ! -f "${HOME}/SteamGames/.credentials" || ! -s "${HOME}/SteamGames/.credentials" ]]; then
        until validate_login; do echo "Wrong Username/Password combo, missing steam guard code or steam guard code timeout; Retrying"; done
        echo -e "STEAM_USER=${STEAM_USER}\nSTEAM_PASSWORD=${STEAM_PASSWORD}\nSTEAM_GUARD=${STEAM_GUARD}" > "${HOME}/SteamGames/.credentials"
    else source "${HOME}/SteamGames/.credentials"; fi
}

download() {
    cat << EOT > ${APPID}.txt
@ShutdownOnFailedCommand 1
@NoPromptForPassword 1
force_install_dir "${HOME}/SteamGames/${GAME}"
login ${STEAM_USER} ${STEAM_PASSWORD} ${STEAM_CODE}
app_update ${APPID} validate
quit
EOT

    ${HOME}/SteamGames/steamcmd.sh +runscript ${APPID}.txt
}

remove_drm() {
    while IFS= read -r -d '' fn; do
        base=$(basename "$fn")
        ext=${fn##*.}

        # Only process shared objects and DLLs we care about
        case "$base" in
            steam_api*.so|steam_api*.dll|steamclient.so) ;;
            *) continue ;;
        esac

        fileinfo=$(file -b "$fn")

        if [[ $fileinfo == *"Intel i386"* ]]; then
            arch=x86
        elif [[ $fileinfo == *"x86-64"* ]]; then
            arch=x86_64
        else
            echo "Unrecognized architecture: $fn"
            continue
        fi

        case "$base" in
            steam_api*.so)
                src="$HOME/.local/share/goldberg/linux/$arch/libsteam_api.so"
                ;;
            steam_api*.dll)
                if [[ $arch == x86 ]]; then
                    src="$HOME/.local/share/goldberg/steam_api.dll"
                else
                    src="$HOME/.local/share/goldberg/steam_api64.dll"
                fi
                ;;
            steamclient.so)
                src="$HOME/.local/share/goldberg/linux/$arch/steamclient.so"
                ;;
            *)
                continue
                ;;
        esac

        cp "$src" "$fn"
    done < <(find "${HOME}/SteamGames/${GAME}" -name 'steam_api*.*' -print0)
}

main() {
    setup
    get_game_id
    login
    download
    remove_drm
}

main