#!/bin/bash
# Copyright 2020 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

# Generates the exploit APK file by extracting the ads-impl.apk from the
# app-release.apk in the attachments directory.

set -e

# Build the exploit.
./gradlew :exploit:assembleDebug

tmp=$(mktemp -d)

unzip ./exploit/build/outputs/apk/debug/exploit-debug.apk classes.dex -d "$tmp"
unzip ../attachments/app-release.apk assets/ads-impl.apk -d "$tmp"
./janusify/janusify.py \
  "$tmp/classes.dex" \
  "$tmp/assets/ads-impl.apk" \
  ./exploit.apk

rm -Rf "$tmp"
