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Add license verification for Android app

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Implements a LicenseVerifier class to ensure app integrity and license compliance:
- Verifies the app's package name matches the official release
- Validates app signature against official release signature
- Allows debug and EA (Early Access) builds
- Shows violation dialog and exits if verification fails
- Enforces GPLv3 license compliance for modified versions

This helps prevent unauthorized modified versions from being distributed
without source code, as required by the GPLv3 license.
This commit is contained in:
Zephyron 2025-02-21 18:46:48 +10:00
parent 4d50d2ba16
commit 18f8a0f997
7 changed files with 135 additions and 53 deletions
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20
CMakeLists.txt
View file

@ -98,24 +98,21 @@ endif()
option(ENABLE_OPENSSL "Enable OpenSSL backend for ISslConnection" ${DEFAULT_ENABLE_OPENSSL})
if (ANDROID AND CITRON_DOWNLOAD_ANDROID_VVL)
set(vvl_version "vulkan-sdk-1.4.304.1")
set(vvl_version "1.4.304.1")
set(vvl_zip_file "${CMAKE_BINARY_DIR}/externals/vvl-android.zip")
if (NOT EXISTS "${vvl_zip_file}")
# Download and extract validation layer release to externals directory
set(vvl_base_url "https://github.com/KhronosGroup/Vulkan-ValidationLayers/releases/download")
file(DOWNLOAD "${vvl_base_url}/${vvl_version}/android-binaries-1.4.304.1.zip"
file(DOWNLOAD "${vvl_base_url}/vulkan-sdk-${vvl_version}/android-binaries-${vvl_version}.zip"
"${vvl_zip_file}" SHOW_PROGRESS)
execute_process(COMMAND ${CMAKE_COMMAND} -E tar xf "${vvl_zip_file}"
WORKING_DIRECTORY "${CMAKE_BINARY_DIR}/externals")
endif()
# Copy the arm64 binary to src/android/app/main/jniLibs only if it doesn't exist
# Copy the arm64 binary to src/android/app/main/jniLibs
set(vvl_lib_path "${CMAKE_CURRENT_SOURCE_DIR}/src/android/app/src/main/jniLibs/arm64-v8a/")
set(vvl_lib_file "${vvl_lib_path}/libVkLayer_khronos_validation.so")
if (NOT EXISTS "${vvl_lib_file}")
file(COPY "${CMAKE_BINARY_DIR}/externals/android-binaries-${vvl_version}/arm64-v8a/libVkLayer_khronos_validation.so"
DESTINATION "${vvl_lib_path}")
endif()
file(COPY "${CMAKE_BINARY_DIR}/externals/android-binaries-${vvl_version}/arm64-v8a/libVkLayer_khronos_validation.so"
DESTINATION "${vvl_lib_path}")
endif()
if (ANDROID)
@ -129,15 +126,22 @@ if (CITRON_USE_BUNDLED_VCPKG)
if (CMAKE_ANDROID_ARCH_ABI STREQUAL "arm64-v8a")
set(VCPKG_TARGET_TRIPLET "arm64-android")
set(VCPKG_HOST_TRIPLET "x64-windows")
# this is to avoid CMake using the host pkg-config to find the host
# libraries when building for Android targets
set(PKG_CONFIG_EXECUTABLE "aarch64-none-linux-android-pkg-config" CACHE FILEPATH "" FORCE)
elseif (CMAKE_ANDROID_ARCH_ABI STREQUAL "x86_64")
set(VCPKG_TARGET_TRIPLET "x64-android")
set(VCPKG_HOST_TRIPLET "x64-windows")
set(PKG_CONFIG_EXECUTABLE "x86_64-none-linux-android-pkg-config" CACHE FILEPATH "" FORCE)
else()
message(FATAL_ERROR "Unsupported Android architecture ${CMAKE_ANDROID_ARCH_ABI}")
endif()
# Add these lines to ensure proper Android toolchain setup
set(VCPKG_CHAINLOAD_TOOLCHAIN_FILE "${ANDROID_NDK}/build/cmake/android.toolchain.cmake")
set(VCPKG_CRT_LINKAGE "dynamic")
set(VCPKG_LIBRARY_LINKAGE "static")
endif()
if (MSVC)