dusk/install.sh

#!/usr/bin/env bash

# HI3 patch by mkrsym1
# https://notabug.org/mkrsym1/dusk
# mirror: https://codeberg.org/an-anime-team/dusk

script_dir=`dirname "$0"`
source "${script_dir}"/common

if [ "$(realpath "${script_dir}")" == "$(realpath .)" ]; then
    error "Do not put the patch installer into the game directory!"
fi

if ! command -v xdelta3 2>&1 >> /dev/null; then
    error "xdelta3 is required for patching the game files, but was not found!"
fi

root_cmd="pkexec"
yes_to_all=""
no_root=""
# Parse commandline arguments
while [ "x$1" != "x" ];
do
    case $1 in
        --root-cmd)
            shift
            root_cmd="$1"
            ;;
        --yes-to-all)
            yes_to_all="1"
            ;;
        --no-root)
            no_root="1"
            ;;
        *)
            error "Invalid commandline argmument: $1"
            ;;
    esac
    shift
done

# Logging servers
logging_servers_glb=$(cat <<EOF
# Honkai Impact 3rd logging servers
0.0.0.0 log-upload-os.hoyoverse.com
0.0.0.0 sg-public-data-api.hoyoverse.com
0.0.0.0 dump.gamesafe.qq.com
EOF
)


# Region detection
game_region=""
logging_servers=""

bh3base_checksum=($(md5sum BH3Base.dll))
unityplayer_checksum=($(md5sum UnityPlayer.dll))
case "${bh3base_checksum}-${unityplayer_checksum}" in
    "8cf160412eac779064456bcf5a408005-94ca69db1084ad419e124093cdfbc1eb")
        game_region="glb"
        logging_servers="${logging_servers_glb}"
        ;;
    *)
        error "Wrong game version or game is already patched. Run uninstall.sh to remove the patch."
        ;;
esac

info "Detected region: ${game_region}"

if ! [ "${yes_to_all}" ]; then
    echo
    echo "Modifying the game is a violation of it's Terms of Service! Make sure that you understand all of the risks and possible consequences before proceeding!"
    read -p "Do you wish to proceed? [y/N] " response
    if [[ ! "$response" == [Yy]* ]]; then
        exit 1
    fi
fi


echo
info "Installing the patch"

echo
if ! [ "${no_root}" ]; then
    if [[ ! `cat /etc/hosts` == *"$logging_servers"* ]]; then
        info "Blocking logging servers. This will require superuser privileges (canceling will skip this step)"
        echo "$logging_servers" | $root_cmd tee -a /etc/hosts 2>&1 >> /dev/null
        if test $? -ne 0; then
            warn "Could not block logging servers. Please add the following lines to your /etc/hosts manually:"
            echo "$logging_servers"
        fi
    else
        info "Logging servers are already blocked"
    fi
else
    info "Skipped blocking logging servers because of --no-root"
fi

echo
info "Copying additional files"
for additional_file in ${additional_files[@]}
do
    info "Copying ${additional_file}"
    cp -r "${script_dir}/${game_region}/files/${additional_file}" .
    if test $? -ne 0; then
        error "Failed to copy ${additional_file}!"
    fi
done

echo
info "Patching game files"
for game_file in ${game_files[@]}
do
    if test -f "${game_file}"; then
        info "Patching ${game_file}"
        
        mv "${game_file}" "${game_file}.bak"
        xdelta3 -d -s "${game_file}.bak" "${script_dir}/${game_region}/diffs/${game_file}.vcdiff" "${game_file}"
        if test $? -ne 0; then
            error "Failed to patch ${game_file}!"
        fi
    else
        error "${game_file} not found!"
    fi
done

echo
info "Done"
echo
echo "!!! PLEASE DON'T SHARE THIS PROJECT IN PUBLIC !!!"

echo