change from botan to cryptopp

.gitmodules

@@ -27,3 +27,6 @@
     url = https://github.com/madler/zlib.git
     branch = develop
     ignore = dirty
+[submodule "third-party/cryptopp"]
+	path = third-party/cryptopp
+	url = https://github.com/weidai11/cryptopp

source/CMakeLists.txt

@@ -4,6 +4,15 @@ project(${LIBRARY_NAME} VERSION ${LIBRARY_VERSION} LANGUAGES CXX C)
 
 add_subdirectory(${CMAKE_CURRENT_SOURCE_DIR}/../third-party ${CMAKE_CURRENT_BINARY_DIR}/third-party)
 
+include(ExternalProject)
+ExternalProject_Add(cryptopp
+    SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/../third-party/cryptopp
+    PREFIX ${CMAKE_CURRENT_BINARY_DIR}/cryptopp
+    INSTALL_COMMAND ""
+    CONFIGURE_COMMAND ""
+    BUILD_COMMAND "")
+add_subdirectory(${CMAKE_CURRENT_SOURCE_DIR}/../third-party/cryptopp ${CMAKE_CURRENT_BINARY_DIR}/cryptopp EXCLUDE_FROM_ALL)
+
 if(APPLE)
     option(FRAMEWORK "Set to ON to package dylib and headers into a .framework, OSX only" OFF)
 endif()
@@ -75,8 +84,8 @@ include_directories(${XLNT_INCLUDE_DIR}
     ${THIRD_PARTY_DIR}/libstudxml
     ${THIRD_PARTY_DIR}/utfcpp/source
     ${THIRD_PARTY_DIR}/pole
-    ${THIRD_PARTY_DIR}/botan
-    ${THIRD_PARTY_DIR}/zlib)
+    ${THIRD_PARTY_DIR}/zlib
+    ${THIRD_PARTY_DIR}/cryptopp)
 
 file(GLOB ROOT_HEADERS ${XLNT_INCLUDE_DIR}/xlnt/*.hpp)
 file(GLOB CELL_HEADERS ${XLNT_INCLUDE_DIR}/xlnt/cell/*.hpp)
@@ -112,7 +121,7 @@ set(XLNT_SOURCES ${CELL_SOURCES} ${CHARTS_SOURCES} ${CHARTSHEET_SOURCES}
 	${WORKSHEET_SOURCES} ${DETAIL_SOURCES})
 
 if(NOT STATIC)
-    add_library(xlnt SHARED ${XLNT_HEADERS} ${XLNT_SOURCES} $<TARGET_OBJECTS:xlnt.third-party>)
+    add_library(xlnt SHARED ${XLNT_HEADERS} ${XLNT_SOURCES} $<TARGET_OBJECTS:xlnt.third-party> $<TARGET_OBJECTS:cryptopp-object>)
     target_compile_definitions(xlnt PRIVATE XLNT_SHARED=1)
 
     if(MSVC)
@@ -142,7 +151,7 @@ if(NOT STATIC)
         )
     endif()
 else()
-    add_library(xlnt STATIC ${XLNT_HEADERS} ${XLNT_SOURCES} $<TARGET_OBJECTS:xlnt.third-party>)
+    add_library(xlnt STATIC ${XLNT_HEADERS} ${XLNT_SOURCES} $<TARGET_OBJECTS:xlnt.third-party> $<TARGET_OBJECTS:cryptopp-object>)
     target_compile_definitions(xlnt PUBLIC XLNT_STATIC=1)
 
     if(MSVC)

source/detail/include_cryptopp.hpp

@@ -27,7 +27,16 @@
 #pragma clang diagnostic ignored "-Wdocumentation"
 #pragma clang diagnostic ignored "-Wweak-vtables"
 #pragma clang diagnostic ignored "-Wconversion"
+#pragma clang diagnostic ignored "-Wundef"
+#pragma clang diagnostic ignored "-Wold-style-cast"
+#pragma clang diagnostic ignored "-Wdeprecated"
+#pragma clang diagnostic ignored "-Wdocumentation-unknown-command"
+#pragma clang diagnostic ignored "-Wextra-semi"
+#pragma clang diagnostic ignored "-Wexit-time-destructors"
 
-#include <botan_all.h>
+#include <aes.h>
+#include <base64.h>
+#include <modes.h>
+#include <sha.h>
 
 #pragma clang diagnostic pop

source/detail/xlsx_crypto.cpp

@@ -24,7 +24,7 @@
 #include <array>
 
 #include <detail/constants.hpp>
-#include <detail/include_botan.hpp>
+#include <detail/include_cryptopp.hpp>
 #include <detail/include_libstudxml.hpp>
 #include <detail/pole.hpp>
 #include <detail/vector_streambuf.hpp>
@@ -129,34 +129,68 @@ struct crypto_helper
         const std::vector<std::uint8_t> &encrypted,
         cipher_chaining chaining, cipher_direction direction)
     {
-        std::string cipher_name("AES-");
-        cipher_name.append(std::to_string(key.size() * 8));
-        cipher_name.append(chaining == cipher_chaining::ecb
-            ? "/ECB/NoPadding" : "/CBC/NoPadding");
+        std::vector<std::uint8_t> destination(encrypted.size(), 0);
 
-        auto botan_direction = direction == cipher_direction::decryption
-            ? Botan::DECRYPTION : Botan::ENCRYPTION;
-        Botan::Pipe pipe(Botan::get_cipher(cipher_name, key, iv, botan_direction));
-        pipe.process_msg(encrypted);
-        auto decrypted = pipe.read_all();
+        if (direction == cipher_direction::encryption && chaining == cipher_chaining::cbc)
+        {
+            CryptoPP::AES::Decryption aesEncryption(key.data(), key.size());
+            CryptoPP::CBC_Mode_ExternalCipher::Encryption cbcEncryption(aesEncryption, iv.data());
 
-        return std::vector<std::uint8_t>(decrypted.begin(), decrypted.end());
+            CryptoPP::StreamTransformationFilter stfEncryptor(cbcEncryption, new CryptoPP::ArraySink(destination.data(), destination.size()));
+            stfEncryptor.Put(reinterpret_cast<const unsigned char*>(encrypted.data()), encrypted.size());
+            stfEncryptor.MessageEnd();
+        }
+        else if (direction == cipher_direction::decryption && chaining == cipher_chaining::cbc)
+        {
+            CryptoPP::AES::Encryption aesEncryption(key.data(), key.size());
+            CryptoPP::CBC_Mode_ExternalCipher::Encryption cbcEncryption(aesEncryption, iv.data());
+
+            CryptoPP::StreamTransformationFilter stfEncryptor(cbcEncryption, new CryptoPP::ArraySink(destination.data(), destination.size()));
+            stfEncryptor.Put(reinterpret_cast<const unsigned char*>(encrypted.data()), encrypted.size());
+            stfEncryptor.MessageEnd();
+        }
+        else if (direction == cipher_direction::encryption && chaining == cipher_chaining::ecb)
+        {
+            CryptoPP::AES::Encryption aesEncryption(key.data(), key.size());
+            CryptoPP::ECB_Mode_ExternalCipher::Encryption cbcEncryption(aesEncryption, iv.data());
+
+            CryptoPP::StreamTransformationFilter stfEncryptor(cbcEncryption, new CryptoPP::ArraySink(destination.data(), destination.size()));
+            stfEncryptor.Put(reinterpret_cast<const unsigned char*>(encrypted.data()), encrypted.size());
+            stfEncryptor.MessageEnd();
+        }
+        else if (direction == cipher_direction::decryption && chaining == cipher_chaining::ecb)
+        {
+            CryptoPP::AES::Encryption aesEncryption(key.data(), key.size());
+            CryptoPP::ECB_Mode_ExternalCipher::Decryption cbcEncryption(aesEncryption, iv.data());
+
+            CryptoPP::StreamTransformationFilter stfEncryptor(cbcEncryption, new CryptoPP::ArraySink(destination.data(), destination.size()));
+            stfEncryptor.Put(reinterpret_cast<const unsigned char*>(encrypted.data()), encrypted.size());
+            stfEncryptor.MessageEnd();
+        }
+
+        return destination;
     }
 
     static std::vector<std::uint8_t> decode_base64(const std::string &encoded)
     {
-        Botan::Pipe pipe(new Botan::Base64_Decoder);
-        pipe.process_msg(encoded);
-        auto decoded = pipe.read_all();
+        CryptoPP::Base64Decoder decoder;
+        decoder.Put(reinterpret_cast<const std::uint8_t *>(encoded.data()), encoded.size());
+        decoder.MessageEnd();
+        
+        std::vector<std::uint8_t> decoded(decoder.MaxRetrievable(), 0);
+        decoder.Get(decoded.data(), decoded.size());
 
-        return std::vector<std::uint8_t>(decoded.begin(), decoded.end());
+        return decoded;
     }
 
     static std::string encode_base64(const std::vector<std::uint8_t> &decoded)
     {
-        Botan::Pipe pipe(new Botan::Base64_Encoder);
-        pipe.process_msg(decoded);
-        auto encoded = pipe.read_all();
+        CryptoPP::Base64Decoder encoder;
+        encoder.Put(reinterpret_cast<const std::uint8_t *>(decoded.data()), decoded.size());
+        encoder.MessageEnd();
+        
+        std::vector<std::uint8_t> encoded(encoder.MaxRetrievable(), 0);
+        encoder.Get(encoded.data(), encoded.size());
 
         return std::string(encoded.begin(), encoded.end());
     }
@@ -164,12 +198,22 @@ struct crypto_helper
     static std::vector<std::uint8_t> hash(hash_algorithm algorithm,
         const std::vector<std::uint8_t> &input)
     {
-        Botan::Pipe pipe(new Botan::Hash_Filter(
-            algorithm == hash_algorithm::sha512 ? "SHA-512" : "SHA-1"));
-        pipe.process_msg(input);
-        auto hash = pipe.read_all();
-
-        return std::vector<std::uint8_t>(hash.begin(), hash.end());
+        std::vector<std::uint8_t> digest;
+        
+        if (algorithm == hash_algorithm::sha512)
+        {
+            CryptoPP::SHA512 sha512;
+            digest.resize(CryptoPP::SHA512::DIGESTSIZE, 0);
+            sha512.CalculateDigest(digest.data(), input.data(), input.size());
+        }
+        else if (algorithm == hash_algorithm::sha1)
+        {
+            CryptoPP::SHA1 sha1;
+            digest.resize(CryptoPP::SHA1::DIGESTSIZE, 0);
+            sha1.CalculateDigest(digest.data(), input.data(), input.size());
+        }
+        
+        return digest;
     }
 
     static std::vector<std::uint8_t> file(POLE::Storage &storage, const std::string &name)

third-party/CMakeLists.txt

@@ -1,11 +1,12 @@
+cmake_minimum_required(VERSION 3.1)
 include(${CMAKE_CURRENT_SOURCE_DIR}/../cmake/common.cmake)
 project(${LIBRARY_NAME}.third-party VERSION ${LIBRARY_VERSION} LANGUAGES CXX C)
 
 # Includes
 include_directories(libstudxml
     utfcpp/source
-    botan
     zlib
+    cryptopp
     ${LIBRARY_SOURCE_DIR}/detail)
 
 set(LIBSTUDXML 
@@ -46,28 +47,6 @@ set(GENX
     ${CMAKE_CURRENT_SOURCE_DIR}/libstudxml/xml/details/genx/genx.c
     ${CMAKE_CURRENT_SOURCE_DIR}/libstudxml/xml/details/genx/genx.h)
 
-set(BOTAN
-    ${CMAKE_CURRENT_SOURCE_DIR}/botan/botan_all.cpp
-    ${CMAKE_CURRENT_SOURCE_DIR}/botan/botan_all_internal.h
-    ${CMAKE_CURRENT_SOURCE_DIR}/botan/botan_all.h)
-
-if(MSVC)
-    set_source_files_properties(${BOTAN} PROPERTIES COMPILE_FLAGS "/wd\"4244\" /wd\"4267\"")
-else()
-    set_source_files_properties(${BOTAN} PROPERTIES COMPILE_FLAGS "-Wno-deprecated-declarations")
-endif()
-
-if (CMAKE_SIZEOF_VOID_P EQUAL 8)
-    set(CPU "x64")
-else()
-    set(CPU "x86")
-endif()
-
-add_custom_command(OUTPUT ${BOTAN}
-    COMMAND python configure.py --minimized-build --enable-modules=sha1,aes,filters,codec_filt,cbc,ecb,sha2_32,sha2_64 --without-sphinx --disable-shared --amalgamation --cpu=${CPU}
-    WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/botan
-    COMMENT "Generating botan amalgamation")
-
 set(ZLIB ${CMAKE_CURRENT_SOURCE_DIR}/zlib/adler32.c
     ${CMAKE_CURRENT_SOURCE_DIR}/zlib/compress.c
     ${CMAKE_CURRENT_SOURCE_DIR}/zlib/crc32.c
@@ -96,7 +75,7 @@ else()
     set_source_files_properties(${ZLIB} PROPERTIES COMPILE_FLAGS "/wd\"4018\"")
 endif()
 
-add_library(xlnt.third-party OBJECT ${LIBSTUDXML} ${GENX} ${EXPAT} ${BOTAN} ${ZLIB})
+add_library(xlnt.third-party OBJECT ${LIBSTUDXML} ${GENX} ${EXPAT} ${ZLIB})
 target_compile_definitions(xlnt.third-party PRIVATE LIBSTUDXML_STATIC_LIB=1)
 
 if(NOT STATIC)
@@ -109,7 +88,6 @@ if(MSVC)
     set_target_properties(xlnt.third-party PROPERTIES COMPILE_FLAGS "/MP")
 endif()
 
-source_group(botan FILES ${BOTAN})
 source_group(libstudxml FILES ${LIBSTUDXML})
 source_group(libstudxml\\genx FILES ${GENX})
 source_group(libstudxml\\expat FILES ${EXPAT})

third-party/botan

@@ -1 +0,0 @@
-Subproject commit 7c9d431d11fe2f3e7e43f2f8585e9be4495135c5

third-party/cryptopp

@@ -0,0 +1 @@
+Subproject commit 1a17ade299c3a05e5a63a8cb3f390d21845c21c6