Asynchronous multithreaded HTTP 1.0 server based on non-Boost ASIO

This repo uses submodules, asio, GSL, and catch. The easiest way to clone it is:

git clone --recursive https://github.com/bsergeev/AsioHttpServer.git

This code started with HTTP server example from Chapter 5 of Boost.Asio C++ Network Programming Cookbook book by Dmytro Radchuk.
It was converted from Boost ASIO to C++11 ASIO and extensively refactored.

In general, to use ASIO without Boost, a preprocessor variable ASIO_STANDALONE=1 should be defined (this is already done in CMake file).

Your code that does something useful, e.g. answers REST API call, goes into purpose::Evaluate() in src/evaluator.cpp.

To test PUT request with some file, file_name, execute the following (on Windows, from Bash):

curl --header "custom: header" --upload-file file_name http://127.0.0.1:8080 -v

Building on Windows and Linux

To build the server, run build.bat (with optional configuration, Debug or Release) on Windows or bash.sh [Release] on Linux or Windows' Git Bash.

These scripts perform out-of-source build by executing the following commands from the source directory:

mkdir build
cd build
cmake -G "generator" ..

where "generator" is either "Visual Studio 15 2017 Win64" or "Unix Makefiles".
Then, on Windows, the solution is built from VS2015 x64 command line:

msbuild AsioHttpSever.sln  

You can also manually load AsioHttpSever.sln in Visual Studio 2015 to debug it.

On Linux, the script simly executes:

make  

Finally, the build script runs tests from test folder.

Troubleshooting

On Linux, if building directly with CLang 4.0 succeeds:

clang -std=c++14 -I3rdParty/asio/asio/include/ -I3rdParty/GSL/include/ -DASIO_STANDALONE=1 -DDO_LOG -stdlib=libc++ -lc++ -lc++abi -lpthread -o server src/*.cpp  

but CMake generated build fails, specify that CLang should be used instead of GCC by executing:

sudo update-alternatives --config c++  

and selecting clang++ from the list.