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[CMake] New component MbedTLS

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New component MbedTLS.
This commit is contained in:
Matheus Gabriel Werny
2026-02-11 14:18:24 +01:00
parent a188913b02
commit 6f34a08c6e
2 changed files with 33 additions and 1 deletions
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27
CMakeLists.txt
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@@ -2,11 +2,13 @@
Build options:
* Standard BUILD_SHARED_LIBS is supported and sets HTTPLIB_SHARED default value.
* HTTPLIB_USE_OPENSSL_IF_AVAILABLE (default on)
* HTTPLIB_USE_MBEDTLS_IF_AVAILABLE (default off)
* HTTPLIB_USE_ZLIB_IF_AVAILABLE (default on)
* HTTPLIB_USE_BROTLI_IF_AVAILABLE (default on)
* HTTPLIB_USE_ZSTD_IF_AVAILABLE (default on)
* HTTPLIB_BUILD_MODULES (default off)
* HTTPLIB_REQUIRE_OPENSSL (default off)
* HTTPLIB_REQUIRE_MBEDTLS (default off)
* HTTPLIB_REQUIRE_ZLIB (default off)
* HTTPLIB_REQUIRE_BROTLI (default off)
* HTTPLIB_REQUIRE_ZSTD (default off)
@@ -21,7 +23,7 @@
-------------------------------------------------------------------------------
After installation with Cmake, a find_package(httplib COMPONENTS OpenSSL ZLIB Brotli zstd) is available.
After installation with Cmake, a find_package(httplib COMPONENTS OpenSSL MbedTLS ZLIB Brotli zstd) is available.
This creates a httplib::httplib target (if found and if listed components are supported).
It can be linked like so:
@@ -48,6 +50,7 @@
These variables are available after you run find_package(httplib)
* HTTPLIB_HEADER_PATH - this is the full path to the installed header (e.g. /usr/include/httplib.h).
* HTTPLIB_IS_USING_OPENSSL - a bool for if OpenSSL support is enabled.
* HTTPLIB_IS_USING_MBEDTLS - a bool for if MbedTLS support is enabled.
* HTTPLIB_IS_USING_ZLIB - a bool for if ZLIB support is enabled.
* HTTPLIB_IS_USING_BROTLI - a bool for if Brotli support is enabled.
* HTTPLIB_IS_USING_ZSTD - a bool for if ZSTD support is enabled.
@@ -95,10 +98,12 @@ set(_HTTPLIB_OPENSSL_MIN_VER "3.0.0")
option(HTTPLIB_NO_EXCEPTIONS "Disable the use of C++ exceptions" OFF)
# Allow for a build to require OpenSSL to pass, instead of just being optional
option(HTTPLIB_REQUIRE_OPENSSL "Requires OpenSSL to be found & linked, or fails build." OFF)
option(HTTPLIB_REQUIRE_MBEDTLS "Requires MbedTLS to be found & linked, or fails build." OFF)
option(HTTPLIB_REQUIRE_ZLIB "Requires ZLIB to be found & linked, or fails build." OFF)
# Allow for a build to casually enable OpenSSL/ZLIB support, but silently continue if not found.
# Make these options so their automatic use can be specifically disabled (as needed)
option(HTTPLIB_USE_OPENSSL_IF_AVAILABLE "Uses OpenSSL (if available) to enable HTTPS support." ON)
option(HTTPLIB_USE_MBEDTLS_IF_AVAILABLE "Uses MbedTLS (if available) to enable HTTPS support." OFF)
option(HTTPLIB_USE_ZLIB_IF_AVAILABLE "Uses ZLIB (if available) to enable Zlib compression support." ON)
# Lets you compile the program as a regular library instead of header-only
option(HTTPLIB_COMPILE "If ON, uses a Python script to split the header into a compilable header & source file (requires Python v3)." OFF)
@@ -120,6 +125,15 @@ else()
message(WARNING "HTTPLIB_BUILD_MODULES requires CMake 3.28 or later. Current version is ${CMAKE_VERSION}. Modules support has been disabled.")
endif()
endif()
if(HTTPLIB_REQUIRE_OPENSSL AND HTTPLIB_REQUIRE_MBEDTLS)
message(FATAL_ERROR "HTTPLIB_REQUIRE_OPENSSL and HTTPLIB_REQUIRE_MBEDTLS are mutually exclusive.")
endif()
if(HTTPLIB_USE_OPENSSL_IF_AVAILABLE AND HTTPLIB_USE_MBEDTLS_IF_AVAILABLE)
message(FATAL_ERROR "HTTPLIB_USE_OPENSSL_IF_AVAILABLE and HTTPLIB_USE_MBEDTLS_IF_AVAILABLE are mutually exclusive.")
endif()
# Defaults to static library but respects standard BUILD_SHARED_LIBS if set
include(CMakeDependentOption)
cmake_dependent_option(HTTPLIB_SHARED "Build the library as a shared library instead of static. Has no effect if using header-only."
@@ -173,6 +187,15 @@ elseif(HTTPLIB_USE_OPENSSL_IF_AVAILABLE)
endif()
endif()
if(HTTPLIB_REQUIRE_MBEDTLS)
find_package(MbedTLS REQUIRED)
set(HTTPLIB_IS_USING_MBEDTLS TRUE)
elseif(HTTPLIB_USE_MBEDTLS_IF_AVAILABLE)
find_package(MbedTLS QUIET)
message(WARNING ${MbedTLS_FOUND}) # TODO
set(HTTPLIB_IS_USING_MBEDTLS ${MbedTLS_FOUND})
endif()
if(HTTPLIB_REQUIRE_ZLIB)
find_package(ZLIB REQUIRED)
set(HTTPLIB_IS_USING_ZLIB TRUE)
@@ -327,6 +350,7 @@ target_link_libraries(${PROJECT_NAME} ${_INTERFACE_OR_PUBLIC}
$<$<BOOL:${HTTPLIB_IS_USING_ZSTD}>:zstd::libzstd>
$<$<BOOL:${HTTPLIB_IS_USING_OPENSSL}>:OpenSSL::SSL>
$<$<BOOL:${HTTPLIB_IS_USING_OPENSSL}>:OpenSSL::Crypto>
$<$<BOOL:${HTTPLIB_IS_USING_MBEDTLS}>:MbedTLS::mbedtls>
)
# Set the definitions to enable optional features
@@ -336,6 +360,7 @@ target_compile_definitions(${PROJECT_NAME} ${_INTERFACE_OR_PUBLIC}
$<$<BOOL:${HTTPLIB_IS_USING_ZLIB}>:CPPHTTPLIB_ZLIB_SUPPORT>
$<$<BOOL:${HTTPLIB_IS_USING_ZSTD}>:CPPHTTPLIB_ZSTD_SUPPORT>
$<$<BOOL:${HTTPLIB_IS_USING_OPENSSL}>:CPPHTTPLIB_OPENSSL_SUPPORT>
$<$<BOOL:${HTTPLIB_IS_USING_MBEDTLS}>:CPPHTTPLIB_MBEDTLS_SUPPORT>
$<$<AND:$<PLATFORM_ID:Darwin>,$<BOOL:${HTTPLIB_IS_USING_OPENSSL}>,$<BOOL:${HTTPLIB_IS_USING_CERTS_FROM_MACOSX_KEYCHAIN}>>:CPPHTTPLIB_USE_CERTS_FROM_MACOSX_KEYCHAIN>
$<$<BOOL:${HTTPLIB_USE_NON_BLOCKING_GETADDRINFO}>:CPPHTTPLIB_USE_NON_BLOCKING_GETADDRINFO>
)