Tools/ConnectionPatcher: Add 'versions' file patching method

* This is necessary to allow connection to 6.1.2 after the 6.2.0 update released. Patching is version aware.
* Link is hardcoded to a github page after suggestion from Aokromes, it is not tied to any server this way
* The usage is optional. To patch use the "-e" option
* OOP-ify the tool a bit

Original implementation by DJScias

Closes #14980

1 files changed, 11 insertions, 0 deletions

diff --git a/src/tools/connection_patcher/Helper.hpp b/src/tools/connection_patcher/Helper.hpp
index 4458617708f..e0c4e8dd2de 100644
--- a/src/tools/connection_patcher/Helper.hpp
+++ b/src/tools/connection_patcher/Helper.hpp
@@ -20,16 +20,27 @@
 #define CONNECTION_PATCHER_HELPER_HPP
 
 #include "Constants/BinaryTypes.hpp"
+#include "Patterns/Common.hpp"
 
+#include <boost/filesystem.hpp>
+#include <boost/asio.hpp>
 #include <vector>
+#include <set>
 #include <string>
+#include <stdexcept>
+#include <SHA256.h>
+#include <Util.h>
 
 namespace Connection_Patcher
 {
     namespace Helper
     {
+        void CopyDir(boost::filesystem::path const & source, boost::filesystem::path const & destination);
+        void DownloadFile(const std::string& serverName, int port, const std::string& getCommand, std::ostream& out);
         Constants::BinaryTypes GetBinaryType(std::vector<unsigned char> const& data);
         std::string GetFileChecksum(std::vector<unsigned char> const& data);
+        std::set<size_t> SearchOffset(std::vector<unsigned char> const& binary, std::vector<unsigned char> const& pattern);
+        uint32_t GetBuildNumber(std::vector<unsigned char> const& binary);
     }
 }