1INCLUDE(SanitizeBool) 2 3# We try to find any packages our backends might use 4FIND_PACKAGE(OpenSSL) 5FIND_PACKAGE(mbedTLS) 6IF (CMAKE_SYSTEM_NAME MATCHES "Darwin") 7 FIND_PACKAGE(Security) 8 FIND_PACKAGE(CoreFoundation) 9ENDIF() 10 11IF(USE_HTTPS) 12 # Auto-select TLS backend 13 SanitizeBool(USE_HTTPS) 14 IF (USE_HTTPS STREQUAL ON) 15 IF (SECURITY_FOUND) 16 IF (SECURITY_HAS_SSLCREATECONTEXT) 17 SET(USE_HTTPS "SecureTransport") 18 ELSE() 19 MESSAGE(STATUS "Security framework is too old, falling back to OpenSSL") 20 SET(USE_HTTPS "OpenSSL") 21 ENDIF() 22 ELSEIF (WINHTTP) 23 SET(USE_HTTPS "WinHTTP") 24 ELSEIF(OPENSSL_FOUND) 25 SET(USE_HTTPS "OpenSSL") 26 ELSEIF(MBEDTLS_FOUND) 27 SET(USE_HTTPS "mbedTLS") 28 ELSE() 29 MESSAGE(FATAL_ERROR "Unable to autodetect a usable HTTPS backend." 30 "Please pass the backend name explicitly (-DUSE_HTTPS=backend)") 31 ENDIF() 32 ENDIF() 33 34 # Check that we can find what's required for the selected backend 35 IF (USE_HTTPS STREQUAL "SecureTransport") 36 IF (NOT COREFOUNDATION_FOUND) 37 MESSAGE(FATAL_ERROR "Cannot use SecureTransport backend, CoreFoundation.framework not found") 38 ENDIF() 39 IF (NOT SECURITY_FOUND) 40 MESSAGE(FATAL_ERROR "Cannot use SecureTransport backend, Security.framework not found") 41 ENDIF() 42 IF (NOT SECURITY_HAS_SSLCREATECONTEXT) 43 MESSAGE(FATAL_ERROR "Cannot use SecureTransport backend, SSLCreateContext not supported") 44 ENDIF() 45 46 SET(GIT_SECURE_TRANSPORT 1) 47 LIST(APPEND LIBGIT2_SYSTEM_INCLUDES ${SECURITY_INCLUDE_DIR}) 48 LIST(APPEND LIBGIT2_LIBS ${COREFOUNDATION_LDFLAGS} ${SECURITY_LDFLAGS}) 49 LIST(APPEND LIBGIT2_PC_LIBS ${COREFOUNDATION_LDFLAGS} ${SECURITY_LDFLAGS}) 50 ELSEIF (USE_HTTPS STREQUAL "OpenSSL") 51 IF (NOT OPENSSL_FOUND) 52 MESSAGE(FATAL_ERROR "Asked for OpenSSL TLS backend, but it wasn't found") 53 ENDIF() 54 55 SET(GIT_OPENSSL 1) 56 LIST(APPEND LIBGIT2_SYSTEM_INCLUDES ${OPENSSL_INCLUDE_DIR}) 57 LIST(APPEND LIBGIT2_LIBS ${OPENSSL_LIBRARIES}) 58 LIST(APPEND LIBGIT2_PC_LIBS ${OPENSSL_LDFLAGS}) 59 LIST(APPEND LIBGIT2_PC_REQUIRES "openssl") 60 ELSEIF(USE_HTTPS STREQUAL "mbedTLS") 61 IF (NOT MBEDTLS_FOUND) 62 MESSAGE(FATAL_ERROR "Asked for mbedTLS backend, but it wasn't found") 63 ENDIF() 64 65 IF(NOT CERT_LOCATION) 66 MESSAGE(STATUS "Auto-detecting default certificates location") 67 IF(CMAKE_SYSTEM_NAME MATCHES Darwin) 68 # Check for an Homebrew installation 69 SET(OPENSSL_CMD "/usr/local/opt/openssl/bin/openssl") 70 ELSE() 71 SET(OPENSSL_CMD "openssl") 72 ENDIF() 73 EXECUTE_PROCESS(COMMAND ${OPENSSL_CMD} version -d OUTPUT_VARIABLE OPENSSL_DIR OUTPUT_STRIP_TRAILING_WHITESPACE) 74 IF(OPENSSL_DIR) 75 STRING(REGEX REPLACE "^OPENSSLDIR: \"(.*)\"$" "\\1/" OPENSSL_DIR ${OPENSSL_DIR}) 76 77 SET(OPENSSL_CA_LOCATIONS 78 "ca-bundle.pem" # OpenSUSE Leap 42.1 79 "cert.pem" # Ubuntu 14.04, FreeBSD 80 "certs/ca-certificates.crt" # Ubuntu 16.04 81 "certs/ca.pem" # Debian 7 82 ) 83 FOREACH(SUFFIX IN LISTS OPENSSL_CA_LOCATIONS) 84 SET(LOC "${OPENSSL_DIR}${SUFFIX}") 85 IF(NOT CERT_LOCATION AND EXISTS "${OPENSSL_DIR}${SUFFIX}") 86 SET(CERT_LOCATION ${LOC}) 87 ENDIF() 88 ENDFOREACH() 89 ELSE() 90 MESSAGE(FATAL_ERROR "Unable to find OpenSSL executable. Please provide default certificate location via CERT_LOCATION") 91 ENDIF() 92 ENDIF() 93 94 IF(CERT_LOCATION) 95 IF(NOT EXISTS ${CERT_LOCATION}) 96 MESSAGE(FATAL_ERROR "Cannot use CERT_LOCATION=${CERT_LOCATION} as it doesn't exist") 97 ENDIF() 98 ADD_FEATURE_INFO(CERT_LOCATION ON "using certificates from ${CERT_LOCATION}") 99 ADD_DEFINITIONS(-DGIT_DEFAULT_CERT_LOCATION="${CERT_LOCATION}") 100 ENDIF() 101 102 SET(GIT_MBEDTLS 1) 103 LIST(APPEND LIBGIT2_SYSTEM_INCLUDES ${MBEDTLS_INCLUDE_DIR}) 104 LIST(APPEND LIBGIT2_LIBS ${MBEDTLS_LIBRARIES}) 105 # mbedTLS has no pkgconfig file, hence we can't require it 106 # https://github.com/ARMmbed/mbedtls/issues/228 107 # For now, pass its link flags as our own 108 LIST(APPEND LIBGIT2_PC_LIBS ${MBEDTLS_LIBRARIES}) 109 ELSEIF (USE_HTTPS STREQUAL "WinHTTP") 110 # WinHTTP setup was handled in the WinHTTP-specific block above 111 ELSEIF (USE_HTTPS STREQUAL "OpenSSL-Dynamic") 112 SET(GIT_OPENSSL 1) 113 SET(GIT_OPENSSL_DYNAMIC 1) 114 LIST(APPEND LIBGIT2_LIBS dl) 115 ELSE() 116 MESSAGE(FATAL_ERROR "Asked for backend ${USE_HTTPS} but it wasn't found") 117 ENDIF() 118 119 SET(GIT_HTTPS 1) 120 ADD_FEATURE_INFO(HTTPS GIT_HTTPS "using ${USE_HTTPS}") 121ELSE() 122 SET(GIT_HTTPS 0) 123 ADD_FEATURE_INFO(HTTPS NO "") 124ENDIF() 125