# WinPR: Windows Portable Runtime
# winpr cmake build script
#
# Copyright 2012 Marc-Andre Moreau <marcandre.moreau@gmail.com>
#
# 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.

# Include our extra modules
set(CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR}/../cmake/)

if (NOT FREERDP_UNIFIED_BUILD)
	cmake_minimum_required(VERSION 3.13)

	if(POLICY CMP0091)
		cmake_policy(SET CMP0091 NEW)
	endif()
	project(WinPR LANGUAGES C)

	set(CMAKE_C_STANDARD 11)
	set(CMAKE_C_STANDARD_REQUIRED ON)
	set(CMAKE_C_EXTENSIONS ON)

	include(CommonConfigOptions)
	include(ConfigOptions)

	# Default to build shared libs
	option(EXPORT_ALL_SYMBOLS "Export all symbols form library" OFF)

	if (EXPORT_ALL_SYMBOLS)
		#		set(CMAKE_WINDOWS_EXPORT_ALL_SYMBOLS ON)
		add_definitions(-DEXPORT_ALL_SYMBOLS)
	endif()

	if(CMAKE_COMPILER_IS_GNUCC)
		if(NOT EXPORT_ALL_SYMBOLS)
			message(STATUS "GCC default symbol visibility: hidden")
			set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fvisibility=hidden")
		endif()
	endif()
    if(WITH_DEBUG_ALL)
        message(WARNING "WITH_DEBUG_ALL=ON, the build will be slow and might leak sensitive information, do not use with release builds!")
        set(DEFAULT_DEBUG_OPTION "ON" CACHE INTERNAL "debug default")
    else()
        set(DEFAULT_DEBUG_OPTION "OFF" CACHE INTERNAL "debug default")
    endif()
endif()

if (WIN32 AND NOT UWP)
	set(NATIVE_SSPI ON)
endif()

if((NOT ANDROID AND NOT IOS AND NOT UWP) AND NOT WITH_MBEDTLS)
	set(TOOLS_DEFAULT ON)
else()
	set(TOOLS_DEFAULT OFF)
endif()

if(WITH_MBEDTLS)
	set(WITH_INTERNAL_RC4_DEFAULT ON)
	set(WITH_INTERNAL_MD4_DEFAULT ON)
	set(WITH_INTERNAL_MD5_DEFAULT OFF)
else()
	set(WITH_INTERNAL_RC4_DEFAULT OFF)
	set(WITH_INTERNAL_MD4_DEFAULT OFF)
	set(WITH_INTERNAL_MD5_DEFAULT OFF)
endif()

option(WITH_WINPR_TOOLS "Build WinPR helper binaries" ${TOOLS_DEFAULT})
option(WITH_WINPR_DEPRECATED "Build WinPR deprecated symbols" OFF)
option(WITH_DEBUG_THREADS "Print thread debug messages, enables handle dump" ${DEFAULT_DEBUG_OPTION})
option(WITH_DEBUG_EVENTS "Print event debug messages, enables handle dump" ${DEFAULT_DEBUG_OPTION})
option(WITH_DEBUG_SYMBOLS "Pack debug symbols to installer" OFF)
option(WITH_NATIVE_SSPI "Use native SSPI modules" ${NATIVE_SSPI})
option(WITH_SMARTCARD_INSPECT "Enable SmartCard API Inspector" OFF)
option(WITH_DEBUG_MUTEX "Print mutex debug messages" ${DEFAULT_DEBUG_OPTION})
option(WITH_INTERNAL_RC4 "Use compiled in rc4 functions instead of OpenSSL/MBedTLS" ${WITH_INTERNAL_RC4_DEFAULT})
option(WITH_INTERNAL_MD4 "Use compiled in md4 hash functions instead of OpenSSL/MBedTLS" ${WITH_INTERNAL_MD4_DEFAULT})
option(WITH_INTERNAL_MD5 "Use compiled in md5 hash functions instead of OpenSSL/MBedTLS" ${WITH_INTERNAL_MD5_DEFAULT})
option(WITH_UNICODE_BUILTIN  "Use built-in Unicode conversion (don't use system-provided libraries)" OFF)

# This option MUST be off to avoid symbol conflicts when loading an external SSPI module library
option(SSPI_DLL "Define and export SSPI API symbols for usage as a Windows SSPI DLL replacement" OFF)

if(SSPI_DLL)
	add_definitions("-DSSPI_DLL")
endif()

option(WITH_DEBUG_NTLM "Print NTLM debug messages" ${DEFAULT_DEBUG_OPTION})
if(WITH_DEBUG_NTLM)
	message(WARNING "WITH_DEBUG_NTLM=ON, the build might leak sensitive information, do not use with release builds!")
endif()

option(WITH_DEBUG_NLA "Print authentication related debug messages." ${DEFAULT_DEBUG_OPTION})
if(WITH_DEBUG_NLA)
	message(WARNING "WITH_DEBUG_NLA=ON, the build might leak sensitive information, do not use with release builds!")
endif()

if (WITH_WINPR_DEPRECATED)
	add_definitions(-DWITH_WINPR_DEPRECATED)
endif()

# Include cmake modules
include(CheckIncludeFiles)
include(CheckLibraryExists)
include(CheckSymbolExists)
include(CheckStructHasMember)
include(TestBigEndian)

# Check for cmake compatibility (enable/disable features)
include(CheckCmakeCompat)
include(FindFeature)
include(FeatureSummary)
include(CheckCCompilerFlag)
include(InstallFreeRDPMan)
include(SetFreeRDPCMakeInstallDir)
include(CMakePackageConfigHelpers)

if (NOT WIN32)
	add_definitions(-DWINPR_CRITICAL_SECTION_DISABLE_SPINCOUNT)
endif()

# Soname versioning
set(VERSION_REGEX "^(.*)([0-9]+)\\.([0-9]+)\\.([0-9]+)-?(.*)")
set(RAW_VERSION_STRING "3.8.1-dev0")
if(EXISTS "${PROJECT_SOURCE_DIR}/.source_tag")
	file(READ ${PROJECT_SOURCE_DIR}/.source_tag RAW_VERSION_STRING)
elseif(USE_VERSION_FROM_GIT_TAG)
	git_get_exact_tag(_GIT_TAG --tags --always)
	if (NOT ${_GIT_TAG} STREQUAL "n/a")
		string(REGEX MATCH ${VERSION_REGEX} FOUND_TAG "${_GIT_TAG}")
		if (FOUND_TAG)
			set(RAW_VERSION_STRING ${_GIT_TAG})
		endif()
	endif()
endif()
string(STRIP ${RAW_VERSION_STRING} RAW_VERSION_STRING)

string(REGEX REPLACE "${VERSION_REGEX}" "\\2" WINPR_VERSION_MAJOR "${RAW_VERSION_STRING}")
string(REGEX REPLACE "${VERSION_REGEX}" "\\3" WINPR_VERSION_MINOR "${RAW_VERSION_STRING}")
string(REGEX REPLACE "${VERSION_REGEX}" "\\4" WINPR_VERSION_REVISION "${RAW_VERSION_STRING}")
string(REGEX REPLACE "${VERSION_REGEX}" "\\5" WINPR_VERSION_SUFFIX "${RAW_VERSION_STRING}")

set(WINPR_VERSION "${WINPR_VERSION_MAJOR}.${WINPR_VERSION_MINOR}.${WINPR_VERSION_REVISION}")
set(WINPR_API_VERSION "${WINPR_VERSION_MAJOR}")
if (WINPR_VERSION_SUFFIX)
	set(WINPR_VERSION_FULL "${WINPR_VERSION}-${WINPR_VERSION_SUFFIX}")
else()
	set(WINPR_VERSION_FULL "${WINPR_VERSION}")
endif()

if(NOT IOS)
	CHECK_SYMBOL_EXISTS(strndup string.h WINPR_HAVE_STRNDUP)
	check_include_files(unistd.h WINPR_HAVE_UNISTD_H)
	check_include_files(execinfo.h WINPR_HAVE_EXECINFO_HEADER)
	if (WINPR_HAVE_EXECINFO_HEADER)
		check_symbol_exists(backtrace execinfo.h WINPR_HAVE_EXECINFO_BACKTRACE)
		check_symbol_exists(backtrace_symbols execinfo.h WINPR_HAVE_EXECINFO_BACKTRACE_SYMBOLS)
		check_symbol_exists(backtrace_symbols_fd execinfo.h WINPR_HAVE_EXECINFO_BACKTRACE_SYMBOLS_FD)

		# Some implementations (e.g. Android NDK API < 33) provide execinfo.h but do not define
		# the backtrace functions. Disable detection for these cases
		if (WINPR_HAVE_EXECINFO_BACKTRACE AND WINPR_HAVE_EXECINFO_BACKTRACE_SYMBOLS AND WINPR_HAVE_EXECINFO_BACKTRACE_SYMBOLS_FD)
			set(WINPR_HAVE_EXECINFO_H ON)
		endif()
	endif()
	check_include_files(inttypes.h WINPR_HAVE_INTTYPES_H)
	check_include_files(stdint.h WINPR_HAVE_STDINT_H)
	check_include_files(inttypes.h WINPR_HAVE_INTTYPES_H)
else(NOT IOS)
	set(WINPR_HAVE_STDINT_H 1)
	set(WINPR_HAVE_STRNDUP 1)
	set(WINPR_HAVE_INTTYPES_H 1)
endif(NOT IOS)

if (NOT IOS)
	check_include_files(stdbool.h WINPR_HAVE_STDBOOL_H)
	if (NOT WINPR_HAVE_STDBOOL_H)
		include_directories(${CMAKE_CURRENT_SOURCE_DIR}/../compat/stdbool)
	endif()
else()
	set(WINPR_HAVE_STDBOOL_H 1)
endif()

set(CMAKE_THREAD_PREFER_PTHREAD TRUE)

if(NOT IOS)
	find_package(Threads REQUIRED)
endif()

# Include files
if(NOT IOS)
	check_include_files(fcntl.h WINPR_HAVE_FCNTL_H)
	check_include_files(aio.h WINPR_HAVE_AIO_H)
	check_include_files(sys/timerfd.h WINPR_HAVE_SYS_TIMERFD_H)
	check_include_files(unistd.h WINPR_HAVE_UNISTD_H)
	check_include_files(inttypes.h WINPR_HAVE_INTTYPES_H)
	check_include_files(sys/filio.h WINPR_HAVE_SYS_FILIO_H)
	check_include_files(sys/sockio.h WINPR_HAVE_SYS_SOCKIO_H)
	check_include_files(syslog.h WINPR_HAVE_SYSLOG_H)
	check_include_files(sys/select.h WINPR_HAVE_SYS_SELECT_H)
	check_include_files(sys/eventfd.h WINPR_HAVE_SYS_EVENTFD_H)
	check_include_files(unwind.h WINPR_HAVE_UNWIND_H)
	if (WINPR_HAVE_SYS_EVENTFD_H)
		check_symbol_exists(eventfd_read sys/eventfd.h WITH_EVENTFD_READ_WRITE)
	endif()

	include(CheckFunctionExists)
	check_function_exists(getlogin_r WINPR_HAVE_GETLOGIN_R)
	check_function_exists(getpwuid_r WINPR_HAVE_GETPWUID_R)
	check_struct_has_member("struct tm" tm_gmtoff time.h WINPR_HAVE_TM_GMTOFF)
else()
	set(WINPR_HAVE_FCNTL_H 1)
	set(WINPR_HAVE_UNISTD_H 1)
	set(WINPR_HAVE_INTTYPES_H 1)
	set(WINPR_HAVE_SYS_FILIO_H 1)
	set(WINPR_HAVE_TM_GMTOFF 1)
endif()

if(UNIX OR CYGWIN)
	if (FREEBSD)
		list(APPEND CMAKE_REQUIRED_INCLUDES ${EPOLLSHIM_INCLUDE_DIR})
	endif()
	if (FREEBSD)
		list(REMOVE_ITEM CMAKE_REQUIRED_INCLUDES ${EPOLLSHIM_INCLUDE_DIR})
	endif()
	option(WITH_POLL "Check for and include poll.h" ON)
	if (WITH_POLL)
		check_include_files(poll.h WINPR_HAVE_POLL_H)
	endif()
endif()

if(NOT WIN32 AND NOT IOS)
	if (NOT WINPR_HAVE_PTHREAD_MUTEX_TIMEDLOCK_LIB)
		CHECK_LIBRARY_EXISTS(pthreads pthread_mutex_timedlock "" WINPR_HAVE_PTHREAD_MUTEX_TIMEDLOCK_LIBS)
	endif (NOT WINPR_HAVE_PTHREAD_MUTEX_TIMEDLOCK_LIB)

	if (NOT WINPR_HAVE_PTHREAD_MUTEX_TIMEDLOCK_SYMBOL)
		CHECK_LIBRARY_EXISTS(pthread pthread_mutex_timedlock "" WINPR_HAVE_PTHREAD_MUTEX_TIMEDLOCK_LIB)
	endif (NOT WINPR_HAVE_PTHREAD_MUTEX_TIMEDLOCK_SYMBOL)

	list(APPEND CMAKE_REQUIRED_LIBRARIES pthread)
	CHECK_SYMBOL_EXISTS(pthread_mutex_timedlock pthread.h WINPR_HAVE_PTHREAD_MUTEX_TIMEDLOCK_SYMBOL)

	if (WINPR_HAVE_PTHREAD_MUTEX_TIMEDLOCK_SYMBOL OR WINPR_HAVE_PTHREAD_MUTEX_TIMEDLOCK_LIB OR WINPR_HAVE_PTHREAD_MUTEX_TIMEDLOCK_LIBS)
		set(WINPR_HAVE_PTHREAD_MUTEX_TIMEDLOCK ON)
	endif (WINPR_HAVE_PTHREAD_MUTEX_TIMEDLOCK_SYMBOL OR WINPR_HAVE_PTHREAD_MUTEX_TIMEDLOCK_LIB OR WINPR_HAVE_PTHREAD_MUTEX_TIMEDLOCK_LIBS)
	list(REMOVE_ITEM CMAKE_REQUIRED_LIBRARIES pthread)
endif()

	set(OPENSSL_FEATURE_TYPE "RECOMMENDED")
	set(OPENSSL_FEATURE_PURPOSE "cryptography")
	set(OPENSSL_FEATURE_DESCRIPTION "encryption, certificate validation, hashing functions")

	set(MBEDTLS_FEATURE_TYPE "OPTIONAL")
	set(MBEDTLS_FEATURE_PURPOSE "cryptography")
	set(MBEDTLS_FEATURE_DESCRIPTION "encryption, certificate validation, hashing functions")

	option(WITH_LIBRESSL "build with LibreSSL" OFF)
	if (WITH_LIBRESSL)
		find_package(LibreSSL REQUIRED)
		set(OPENSSL_INCLUDE_DIR ${LIBRESSL_INCLUDE_DIR})
		set(OPENSSL_LIBRARIES ${LIBRESSL_LIBRARIES})
		set(OPENSSL_CRYPTO_LIBRARIES ${LIBRESSL_LIBRARIES})
		set(WITH_OPENSSL ON)
		set(OPENSSL_FOUND ON)
		add_definitions("-DWITH_LIBRESSL")
		add_definitions("-DWITH_OPENSSL")
	else()
		find_feature(OpenSSL ${OPENSSL_FEATURE_TYPE} ${OPENSSL_FEATURE_PURPOSE} ${OPENSSL_FEATURE_DESCRIPTION})
		find_feature(MbedTLS ${MBEDTLS_FEATURE_TYPE} ${MBEDTLS_FEATURE_PURPOSE} ${MBEDTLS_FEATURE_DESCRIPTION})
	endif()

	if (NOT OPENSSL_FOUND AND NOT MBEDTLS_FOUND AND NOT LibreSSL_FOUND)
		message(FATAL_ERROR "OpenSSL or MBedTLS are required, none enabled/found")
	endif()

	if(WITH_OPENSSL AND OPENSSL_FOUND)
		add_definitions("-DWITH_OPENSSL")
	endif()

	if(WITH_MBEDTLS AND MBEDTLS_FOUND)
		add_definitions("-DWITH_MBEDTLS")
	endif()

	enable_testing()

	if(MSVC)
		set(TESTING_OUTPUT_DIRECTORY "${PROJECT_BINARY_DIR}")
	else()
		set(TESTING_OUTPUT_DIRECTORY "${PROJECT_BINARY_DIR}/Testing")
endif()

if (NOT WIN32 AND NOT IOS AND NOT ANDROID)
	set(PKCS11_DEFAULT ON)
else()
	set(PKCS11_DEFAULT OFF)
endif()
option(WITH_PKCS11 "encryption, certificate validation, hashing functions" ${PKCS11_DEFAULT})
if (WITH_PKCS11)
	add_definitions("-DWITH_PKCS11")
endif()

if(BUILD_SHARED_LIBS)
	set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -DWINPR_DLL")
endif()

add_definitions(-DWINPR_EXPORTS)

include_directories(${CMAKE_CURRENT_SOURCE_DIR}/include)
include_directories(${CMAKE_CURRENT_BINARY_DIR}/include)

set(WINPR_INCLUDE_DIR "include/winpr${WINPR_VERSION_MAJOR}")


add_subdirectory(libwinpr)

if(WITH_WINPR_TOOLS)
	add_subdirectory(tools)
endif()

if(BUILD_TESTING)
	add_subdirectory(test)
endif()

add_subdirectory(include)

generate_and_install_freerdp_man_from_template("wlog" "7" "${WINPR_API_VERSION}")
# Exporting

export(PACKAGE winpr)

SetFreeRDPCMakeInstallDir(WINPR_CMAKE_INSTALL_DIR "WinPR${WINPR_VERSION_MAJOR}")

configure_package_config_file(WinPRConfig.cmake.in ${CMAKE_CURRENT_BINARY_DIR}/WinPRConfig.cmake
	INSTALL_DESTINATION ${WINPR_CMAKE_INSTALL_DIR}
	PATH_VARS WINPR_INCLUDE_DIR)

write_basic_package_version_file(${CMAKE_CURRENT_BINARY_DIR}/WinPRConfigVersion.cmake
	VERSION ${WINPR_VERSION} COMPATIBILITY SameMajorVersion)

install(FILES ${CMAKE_CURRENT_BINARY_DIR}/WinPRConfig.cmake ${CMAKE_CURRENT_BINARY_DIR}/WinPRConfigVersion.cmake
	DESTINATION ${WINPR_CMAKE_INSTALL_DIR})

install(EXPORT WinPRTargets DESTINATION ${WINPR_CMAKE_INSTALL_DIR})

include(pkg-config-install-prefix)
configure_file(${CMAKE_CURRENT_SOURCE_DIR}/winpr.pc.in ${CMAKE_CURRENT_BINARY_DIR}/winpr${WINPR_VERSION_MAJOR}.pc @ONLY)
install(FILES ${CMAKE_CURRENT_BINARY_DIR}/winpr${WINPR_VERSION_MAJOR}.pc DESTINATION ${PKG_CONFIG_PC_INSTALL_DIR})