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#!/usr/bin/env bash
# This script downloads the build artifacts along with the signatures, and verifies them.
set -eu
SCRIPT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
cd "$SCRIPT_DIR"
if [ $# -ne 2 ]; then
echo "Please provide the following arguments:"
echo " $(basename "$0") \\"
echo " <product version> \\"
echo " <artifact download directory> "
exit 1
fi
# The app version to download
PRODUCT_VERSION=$1
# The directory where the artifacts will be downloaded to
ARTIFACT_DIR=$2
URL_BASE="https://releases.mullvad.net/android/releases"
# shellcheck source-path=desktop/scripts/release
source ./release-config.sh
mkdir -p "$ARTIFACT_DIR"
fingerprint_in_file=$(sq keyring list "$MULLVAD_CODE_SIGNING_KEY_PATH" | awk '{print $2}')
test "$fingerprint_in_file" = "$MULLVAD_CODE_SIGNING_KEY_FINGERPRINT"
pkg_filename="MullvadVPN-${PRODUCT_VERSION}.apk"
pkg_path="$ARTIFACT_DIR/$pkg_filename"
url="$URL_BASE/$PRODUCT_VERSION/$pkg_filename"
if [ -f "$pkg_path" ]; then
echo ">>> Using existing file: $pkg_filename"
else
echo ">>> Downloading $pkg_filename - $url"
curl -o "$pkg_path" --progress-bar --fail "$url"
fi
if [ -f "$pkg_path.asc" ]; then
echo ">>> Using existing file: $pkg_filename.asc"
else
echo ">>> Downloading $pkg_filename.asc - $url.asc"
curl -o "$pkg_path.asc" --progress-bar --fail "$url.asc"
fi
echo ""
echo ">>> Verifying integrity of $pkg_filename"
# We prefer sqv for PGP key verification as it is a strict and easy-to-use implementation of PGP.
# gpg is also not suitable for use in scripting.
if ! sqv --keyring="$MULLVAD_CODE_SIGNING_KEY_PATH" --signature-file="$pkg_path.asc" "$pkg_path"; then
echo ""
echo "!!! INTEGRITY CHECKING FAILED !!!"
rm "$pkg_path" "$pkg_path.asc"
exit 1
fi
echo ""
echo "GOOD SIGNATURE FOR $pkg_filename"
echo ""
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