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Server crash due to invalid HTTP-version in HTTP-request

Description

The server will crash if the HTTP-version in the HTTP-request is invalid. If the HTTP-version is set as a string, or a too large number, std::stof will throw an exception.

System info

MacOS Catalina version 10.15.5

How to reproduce

Clone buggy-web-server, compile and run. Open a terminal and use telnet to connect to the server and send a HTTP-request with an invalid HTTP-version (string):

telnet localhost 8080
GET / HTTP/a

This throws the following error:

libc++abi.dylib: terminating with uncaught exception of type std::invalid_argument: stof: no conversion

Alternatively, open a terminal and use telnet to connect to the server and send a HTTP-request with an invalid HTTP-version (too large number):

telnet localhost 8080
GET / HTTP/99999999999999999999999999999999999999999999999999

This throws the following error:

libc++abi.dylib: terminating with uncaught exception of type std::out_of_range: stof: out of range

Backtrace

* thread #1, queue = 'com.apple.main-thread', stop reason = signal SIGABRT
  * frame #0: 0x00007fff68e2a33a libsystem_kernel.dylib`__pthread_kill + 10
    frame #1: 0x00007fff68ee6e60 libsystem_pthread.dylib`pthread_kill + 430
    frame #2: 0x00007fff68db1808 libsystem_c.dylib`abort + 120
    frame #3: 0x00007fff66011458 libc++abi.dylib`abort_message + 231
    frame #4: 0x00007fff660028a7 libc++abi.dylib`demangling_terminate_handler() + 238
    frame #5: 0x00007fff67b3d5b1 libobjc.A.dylib`_objc_terminate() + 104
    frame #6: 0x00007fff66010887 libc++abi.dylib`std::__terminate(void (*)()) + 8
    frame #7: 0x00007fff660131a2 libc++abi.dylib`__cxxabiv1::failed_throw(__cxxabiv1::__cxa_exception*) + 27
    frame #8: 0x00007fff66013169 libc++abi.dylib`__cxa_throw + 113
    frame #9: 0x00007fff65fea43b libc++.1.dylib`std::__1::stof(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, unsigned long*) + 320
    frame #10: 0x00000001002e5f50 web_server`SimpleWeb::ServerBase<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor> >::write(this=0x00007ffeef9681f8, ec=0x00007ffeef968220)>&)::'lambda'(SimpleWeb::ServerBase<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor> >::Response*)::operator()(SimpleWeb::ServerBase<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor> >::Response*) const::'lambda'(boost::system::error_code const&)::operator()(boost::system::error_code const&) const at server_http.hpp:765:16
    frame #11: 0x00000001002e5c32 web_server`decltype(__f=0x00007ffeef9681f8, __args=0x00007ffeef968220)>&)::'lambda'(SimpleWeb::ServerBase<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor> >::Response*)::operator()(SimpleWeb::ServerBase<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor> >::Response*) const::'lambda'(boost::system::error_code const&)&>(fp)(std::__1::forward<boost::system::error_code const&>(fp0))) std::__1::__invoke<SimpleWeb::ServerBase<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor> >::write(std::__1::shared_ptr<SimpleWeb::ServerBase<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor> >::Session> const&, std::__1::function<void (std::__1::shared_ptr<SimpleWeb::ServerBase<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor> >::Response>, std::__1::shared_ptr<SimpleWeb::ServerBase<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor> >::Request>)>&)::'lambda'(SimpleWeb::ServerBase<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor> >::Response*)::operator()(SimpleWeb::ServerBase<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor> >::Response*) const::'lambda'(boost::system::error_code const&)&, boost::system::error_code const&>(SimpleWeb::ServerBase<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor> >::write(std::__1::shared_ptr<SimpleWeb::ServerBase<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor> >::Session> const&, std::__1::function<void (std::__1::shared_ptr<SimpleWeb::ServerBase<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor> >::Response>, std::__1::shared_ptr<SimpleWeb::ServerBase<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor> >::Request>)>&)::'lambda'(SimpleWeb::ServerBase<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor> >::Response*)::operator()(SimpleWeb::ServerBase<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor> >::Response*) const::'lambda'(boost::system::error_code const&)&, boost::system::error_code const&) at type_traits:4361:1
    frame #12: 0x00000001002e5bd2 web_server`void std::__1::__invoke_void_return_wrapper<void>::__call<SimpleWeb::ServerBase<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor> >::write(__args=0x00007ffeef9681f8, __args=0x00007ffeef968220)>&)::'lambda'(SimpleWeb::ServerBase<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor> >::Response*)::operator()(SimpleWeb::ServerBase<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor> >::Response*) const::'lambda'(boost::system::error_code const&)&, boost::system::error_code const&>(SimpleWeb::ServerBase<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor> >::write(std::__1::shared_ptr<SimpleWeb::ServerBase<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor> >::Session> const&, std::__1::function<void (std::__1::shared_ptr<SimpleWeb::ServerBase<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor> >::Response>, std::__1::shared_ptr<SimpleWeb::ServerBase<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor> >::Request>)>&)::'lambda'(SimpleWeb::ServerBase<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor> >::Response*)::operator()(SimpleWeb::ServerBase<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor> >::Response*) const::'lambda'(boost::system::error_code const&)&, boost::system::error_code const&) at __functional_base:349:9
    frame #13: 0x00000001002e5b92 web_server`std::__1::__function::__alloc_func<SimpleWeb::ServerBase<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor> >::write(std::__1::shared_ptr<SimpleWeb::ServerBase<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor> >::Session> const&, std::__1::function<void (std::__1::shared_ptr<SimpleWeb::ServerBase<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor> >::Response>, std::__1::shared_ptr<SimpleWeb::ServerBase<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor> >::Request>)>&)::'lambda'(SimpleWeb::ServerBase<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor> >::Response*)::operator()(SimpleWeb::ServerBase<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor> >::Response*) const::'lambda'(boost::system::error_code const&), std::__1::allocator<SimpleWeb::ServerBase<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor> >::write(std::__1::shared_ptr<SimpleWeb::ServerBase<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor> >::Session> const&, std::__1::function<void (std::__1::shared_ptr<SimpleWeb::ServerBase<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor> >::Response>, std::__1::shared_ptr<SimpleWeb::ServerBase<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor> >::Request>)>&)::'lambda'(SimpleWeb::ServerBase<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor> >::Response*)::operator()(SimpleWeb::ServerBase<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor> >::Response*) const::'lambda'(boost::system::error_code const&)>, void (boost::system::error_code const&)>::operator(this=0x00007ffeef9681f8, __arg=0x00007ffeef968220)(boost::system::error_code const&) at functional:1527:16
    frame #14: 0x00000001002e46a1 web_server`std::__1::__function::__func<SimpleWeb::ServerBase<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor> >::write(std::__1::shared_ptr<SimpleWeb::ServerBase<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor> >::Session> const&, std::__1::function<void (std::__1::shared_ptr<SimpleWeb::ServerBase<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor> >::Response>, std::__1::shared_ptr<SimpleWeb::ServerBase<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor> >::Request>)>&)::'lambda'(SimpleWeb::ServerBase<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor> >::Response*)::operator()(SimpleWeb::ServerBase<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor> >::Response*) const::'lambda'(boost::system::error_code const&), std::__1::allocator<SimpleWeb::ServerBase<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor> >::write(std::__1::shared_ptr<SimpleWeb::ServerBase<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor> >::Session> const&, std::__1::function<void (std::__1::shared_ptr<SimpleWeb::ServerBase<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor> >::Response>, std::__1::shared_ptr<SimpleWeb::ServerBase<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor> >::Request>)>&)::'lambda'(SimpleWeb::ServerBase<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor> >::Response*)::operator()(SimpleWeb::ServerBase<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor> >::Response*) const::'lambda'(boost::system::error_code const&)>, void (boost::system::error_code const&)>::operator(this=0x00007ffeef9681f0, __arg=0x00007ffeef968220)(boost::system::error_code const&) at functional:1651:12
    frame #15: 0x00000001002e3fa5 web_server`std::__1::__function::__value_func<void (boost::system::error_code const&)>::operator(this=0x00007ffeef9681f0, __args=0x00007ffeef968220)(boost::system::error_code const&) const at functional:1799:16
    frame #16: 0x00000001002e3f20 web_server`std::__1::function<void (boost::system::error_code const&)>::operator(this=0x00007ffeef9681f0, __arg=0x00007ffeef968220)(boost::system::error_code const&) const at functional:2347:12
    frame #17: 0x00000001002e15ee web_server`SimpleWeb::ServerBase<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor> >::Response::send_on_delete(this=0x00007ffeef9681e0, ec=0x00007ffeef968220, (null)=74)> const&)::'lambda'(boost::system::error_code const&, unsigned long)::operator()(boost::system::error_code const&, unsigned long) const at server_http.hpp:118:13
    frame #18: 0x00000001002e1346 web_server`boost::asio::detail::write_dynbuf_v1_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor>, boost::asio::basic_streambuf_ref<std::__1::allocator<char> >, boost::asio::detail::transfer_all_t, SimpleWeb::ServerBase<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor> >::Response::send_on_delete(std::__1::function<void (boost::system::error_code const&)> const&)::'lambda'(boost::system::error_code const&, unsigned long)>::operator(this=0x00007ffeef9681c0, ec=0x00007ffeef968220, bytes_transferred=74, start=0)(boost::system::error_code const&, unsigned long, int) at write.hpp:590:9
    frame #19: 0x00000001002e19f2 web_server`boost::asio::detail::write_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor>, boost::asio::const_buffers_1, boost::asio::const_buffer const*, boost::asio::detail::transfer_all_t, boost::asio::detail::write_dynbuf_v1_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor>, boost::asio::basic_streambuf_ref<std::__1::allocator<char> >, boost::asio::detail::transfer_all_t, SimpleWeb::ServerBase<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor> >::Response::send_on_delete(std::__1::function<void (boost::system::error_code const&)> const&)::'lambda'(boost::system::error_code const&, unsigned long)> >::operator(this=0x00007ffeef968190, ec=0x00007ffeef968220, bytes_transferred=74, start=0)(boost::system::error_code const&, unsigned long, int) at write.hpp:338:9
    frame #20: 0x00000001002e320a web_server`boost::asio::detail::binder2<boost::asio::detail::write_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor>, boost::asio::const_buffers_1, boost::asio::const_buffer const*, boost::asio::detail::transfer_all_t, boost::asio::detail::write_dynbuf_v1_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor>, boost::asio::basic_streambuf_ref<std::__1::allocator<char> >, boost::asio::detail::transfer_all_t, SimpleWeb::ServerBase<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor> >::Response::send_on_delete(std::__1::function<void (boost::system::error_code const&)> const&)::'lambda'(boost::system::error_code const&, unsigned long)> >, boost::system::error_code, unsigned long>::operator(this=0x00007ffeef968190)() at bind_handler.hpp:164:5
    frame #21: 0x00000001002e31d5 web_server`void boost::asio::asio_handler_invoke<boost::asio::detail::binder2<boost::asio::detail::write_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor>, boost::asio::const_buffers_1, boost::asio::const_buffer const*, boost::asio::detail::transfer_all_t, boost::asio::detail::write_dynbuf_v1_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor>, boost::asio::basic_streambuf_ref<std::__1::allocator<char> >, boost::asio::detail::transfer_all_t, SimpleWeb::ServerBase<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor> >::Response::send_on_delete(std::__1::function<void (boost::system::error_code const&)> const&)::'lambda'(boost::system::error_code const&, unsigned long)> >, boost::system::error_code, unsigned long> >(function=0x00007ffeef968190)> const&)::'lambda'(boost::system::error_code const&, unsigned long)> >, boost::system::error_code, unsigned long>&, ...) at handler_invoke_hook.hpp:69:3
    frame #22: 0x00000001002e31b2 web_server`void boost_asio_handler_invoke_helpers::invoke<boost::asio::detail::binder2<boost::asio::detail::write_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor>, boost::asio::const_buffers_1, boost::asio::const_buffer const*, boost::asio::detail::transfer_all_t, boost::asio::detail::write_dynbuf_v1_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor>, boost::asio::basic_streambuf_ref<std::__1::allocator<char> >, boost::asio::detail::transfer_all_t, SimpleWeb::ServerBase<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor> >::Response::send_on_delete(std::__1::function<void (boost::system::error_code const&)> const&)::'lambda'(boost::system::error_code const&, unsigned long)> >, boost::system::error_code, unsigned long>, SimpleWeb::ServerBase<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor> >::Response::send_on_delete(std::__1::function<void (boost::system::error_code const&)> const&)::'lambda'(boost::system::error_code const&, unsigned long)>(function=0x00007ffeef968190, context=0x00007ffeef9681e0)> const&)::'lambda'(boost::system::error_code const&, unsigned long)> >, boost::system::error_code, unsigned long>&, SimpleWeb::ServerBase<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor> >::Response::send_on_delete(std::__1::function<void (boost::system::error_code const&)> const&)::'lambda'(boost::system::error_code const&, unsigned long)&) at handler_invoke_helpers.hpp:37:3
    frame #23: 0x00000001002e3171 web_server`void boost::asio::detail::asio_handler_invoke<boost::asio::detail::binder2<boost::asio::detail::write_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor>, boost::asio::const_buffers_1, boost::asio::const_buffer const*, boost::asio::detail::transfer_all_t, boost::asio::detail::write_dynbuf_v1_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor>, boost::asio::basic_streambuf_ref<std::__1::allocator<char> >, boost::asio::detail::transfer_all_t, SimpleWeb::ServerBase<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor> >::Response::send_on_delete(std::__1::function<void (boost::system::error_code const&)> const&)::'lambda'(boost::system::error_code const&, unsigned long)> >, boost::system::error_code, unsigned long>, boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor>, boost::asio::basic_streambuf_ref<std::__1::allocator<char> >, boost::asio::detail::transfer_all_t, SimpleWeb::ServerBase<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor> >::Response::send_on_delete(std::__1::function<void (boost::system::error_code const&)> const&)::'lambda'(boost::system::error_code const&, unsigned long)>(function=0x00007ffeef968190, this_handler=0x00007ffeef9681c0)> const&)::'lambda'(boost::system::error_code const&, unsigned long)> >, boost::system::error_code, unsigned long>&, boost::asio::detail::write_dynbuf_v1_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor>, boost::asio::basic_streambuf_ref<std::__1::allocator<char> >, boost::asio::detail::transfer_all_t, SimpleWeb::ServerBase<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor> >::Response::send_on_delete(std::__1::function<void (boost::system::error_code const&)> const&)::'lambda'(boost::system::error_code const&, unsigned long)>*) at write.hpp:638:5
    frame #24: 0x00000001002e3140 web_server`void boost_asio_handler_invoke_helpers::invoke<boost::asio::detail::binder2<boost::asio::detail::write_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor>, boost::asio::const_buffers_1, boost::asio::const_buffer const*, boost::asio::detail::transfer_all_t, boost::asio::detail::write_dynbuf_v1_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor>, boost::asio::basic_streambuf_ref<std::__1::allocator<char> >, boost::asio::detail::transfer_all_t, SimpleWeb::ServerBase<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor> >::Response::send_on_delete(std::__1::function<void (boost::system::error_code const&)> const&)::'lambda'(boost::system::error_code const&, unsigned long)> >, boost::system::error_code, unsigned long>, boost::asio::detail::write_dynbuf_v1_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor>, boost::asio::basic_streambuf_ref<std::__1::allocator<char> >, boost::asio::detail::transfer_all_t, SimpleWeb::ServerBase<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor> >::Response::send_on_delete(std::__1::function<void (boost::system::error_code const&)> const&)::'lambda'(boost::system::error_code const&, unsigned long)> >(function=0x00007ffeef968190, context=0x00007ffeef9681c0)> const&)::'lambda'(boost::system::error_code const&, unsigned long)> >, boost::system::error_code, unsigned long>&, boost::asio::detail::write_dynbuf_v1_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor>, boost::asio::basic_streambuf_ref<std::__1::allocator<char> >, boost::asio::detail::transfer_all_t, SimpleWeb::ServerBase<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor> >::Response::send_on_delete(std::__1::function<void (boost::system::error_code const&)> const&)::'lambda'(boost::system::error_code const&, unsigned long)>&) at handler_invoke_helpers.hpp:37:3
    frame #25: 0x00000001002e3101 web_server`void boost::asio::detail::asio_handler_invoke<boost::asio::detail::binder2<boost::asio::detail::write_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor>, boost::asio::const_buffers_1, boost::asio::const_buffer const*, boost::asio::detail::transfer_all_t, boost::asio::detail::write_dynbuf_v1_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor>, boost::asio::basic_streambuf_ref<std::__1::allocator<char> >, boost::asio::detail::transfer_all_t, SimpleWeb::ServerBase<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor> >::Response::send_on_delete(std::__1::function<void (boost::system::error_code const&)> const&)::'lambda'(boost::system::error_code const&, unsigned long)> >, boost::system::error_code, unsigned long>, boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor>, boost::asio::const_buffers_1, boost::asio::const_buffer const*, boost::asio::detail::transfer_all_t, boost::asio::detail::write_dynbuf_v1_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor>, boost::asio::basic_streambuf_ref<std::__1::allocator<char> >, boost::asio::detail::transfer_all_t, SimpleWeb::ServerBase<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor> >::Response::send_on_delete(std::__1::function<void (boost::system::error_code const&)> const&)::'lambda'(boost::system::error_code const&, unsigned long)> >(function=0x00007ffeef968190, this_handler=0x00007ffeef968190)> const&)::'lambda'(boost::system::error_code const&, unsigned long)> >, boost::system::error_code, unsigned long>&, boost::asio::detail::write_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor>, boost::asio::const_buffers_1, boost::asio::const_buffer const*, boost::asio::detail::transfer_all_t, boost::asio::detail::write_dynbuf_v1_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor>, boost::asio::basic_streambuf_ref<std::__1::allocator<char> >, boost::asio::detail::transfer_all_t, SimpleWeb::ServerBase<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor> >::Response::send_on_delete(std::__1::function<void (boost::system::error_code const&)> const&)::'lambda'(boost::system::error_code const&, unsigned long)> >*) at write.hpp:393:5
    frame #26: 0x00000001002e30d0 web_server`void boost_asio_handler_invoke_helpers::invoke<boost::asio::detail::binder2<boost::asio::detail::write_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor>, boost::asio::const_buffers_1, boost::asio::const_buffer const*, boost::asio::detail::transfer_all_t, boost::asio::detail::write_dynbuf_v1_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor>, boost::asio::basic_streambuf_ref<std::__1::allocator<char> >, boost::asio::detail::transfer_all_t, SimpleWeb::ServerBase<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor> >::Response::send_on_delete(std::__1::function<void (boost::system::error_code const&)> const&)::'lambda'(boost::system::error_code const&, unsigned long)> >, boost::system::error_code, unsigned long>, boost::asio::detail::write_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor>, boost::asio::const_buffers_1, boost::asio::const_buffer const*, boost::asio::detail::transfer_all_t, boost::asio::detail::write_dynbuf_v1_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor>, boost::asio::basic_streambuf_ref<std::__1::allocator<char> >, boost::asio::detail::transfer_all_t, SimpleWeb::ServerBase<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor> >::Response::send_on_delete(std::__1::function<void (boost::system::error_code const&)> const&)::'lambda'(boost::system::error_code const&, unsigned long)> > >(function=0x00007ffeef968190, context=0x00007ffeef968190)> const&)::'lambda'(boost::system::error_code const&, unsigned long)> >, boost::system::error_code, unsigned long>&, boost::asio::detail::write_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor>, boost::asio::const_buffers_1, boost::asio::const_buffer const*, boost::asio::detail::transfer_all_t, boost::asio::detail::write_dynbuf_v1_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor>, boost::asio::basic_streambuf_ref<std::__1::allocator<char> >, boost::asio::detail::transfer_all_t, SimpleWeb::ServerBase<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor> >::Response::send_on_delete(std::__1::function<void (boost::system::error_code const&)> const&)::'lambda'(boost::system::error_code const&, unsigned long)> >&) at handler_invoke_helpers.hpp:37:3
    frame #27: 0x00000001002e307d web_server`void boost::asio::detail::asio_handler_invoke<boost::asio::detail::binder2<boost::asio::detail::write_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor>, boost::asio::const_buffers_1, boost::asio::const_buffer const*, boost::asio::detail::transfer_all_t, boost::asio::detail::write_dynbuf_v1_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor>, boost::asio::basic_streambuf_ref<std::__1::allocator<char> >, boost::asio::detail::transfer_all_t, SimpleWeb::ServerBase<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor> >::Response::send_on_delete(std::__1::function<void (boost::system::error_code const&)> const&)::'lambda'(boost::system::error_code const&, unsigned long)> >, boost::system::error_code, unsigned long>, boost::asio::detail::write_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor>, boost::asio::const_buffers_1, boost::asio::const_buffer const*, boost::asio::detail::transfer_all_t, boost::asio::detail::write_dynbuf_v1_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor>, boost::asio::basic_streambuf_ref<std::__1::allocator<char> >, boost::asio::detail::transfer_all_t, SimpleWeb::ServerBase<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor> >::Response::send_on_delete(std::__1::function<void (boost::system::error_code const&)> const&)::'lambda'(boost::system::error_code const&, unsigned long)> >, boost::system::error_code, unsigned long>(function=0x00007ffeef968190, this_handler=0x00007ffeef968190)> const&)::'lambda'(boost::system::error_code const&, unsigned long)> >, boost::system::error_code, unsigned long>&, boost::asio::detail::binder2<boost::asio::detail::write_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor>, boost::asio::const_buffers_1, boost::asio::const_buffer const*, boost::asio::detail::transfer_all_t, boost::asio::detail::write_dynbuf_v1_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor>, boost::asio::basic_streambuf_ref<std::__1::allocator<char> >, boost::asio::detail::transfer_all_t, SimpleWeb::ServerBase<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor> >::Response::send_on_delete(std::__1::function<void (boost::system::error_code const&)> const&)::'lambda'(boost::system::error_code const&, unsigned long)> >, boost::system::error_code, unsigned long>*) at bind_handler.hpp:207:3
    frame #28: 0x00000001002e2ee0 web_server`void boost_asio_handler_invoke_helpers::invoke<boost::asio::detail::binder2<boost::asio::detail::write_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor>, boost::asio::const_buffers_1, boost::asio::const_buffer const*, boost::asio::detail::transfer_all_t, boost::asio::detail::write_dynbuf_v1_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor>, boost::asio::basic_streambuf_ref<std::__1::allocator<char> >, boost::asio::detail::transfer_all_t, SimpleWeb::ServerBase<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor> >::Response::send_on_delete(std::__1::function<void (boost::system::error_code const&)> const&)::'lambda'(boost::system::error_code const&, unsigned long)> >, boost::system::error_code, unsigned long>, boost::asio::detail::binder2<boost::asio::detail::write_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor>, boost::asio::const_buffers_1, boost::asio::const_buffer const*, boost::asio::detail::transfer_all_t, boost::asio::detail::write_dynbuf_v1_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor>, boost::asio::basic_streambuf_ref<std::__1::allocator<char> >, boost::asio::detail::transfer_all_t, SimpleWeb::ServerBase<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor> >::Response::send_on_delete(std::__1::function<void (boost::system::error_code const&)> const&)::'lambda'(boost::system::error_code const&, unsigned long)> >, boost::system::error_code, unsigned long> >(function=0x00007ffeef968190, context=0x00007ffeef968190)> const&)::'lambda'(boost::system::error_code const&, unsigned long)> >, boost::system::error_code, unsigned long>&, boost::asio::detail::binder2<boost::asio::detail::write_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor>, boost::asio::const_buffers_1, boost::asio::const_buffer const*, boost::asio::detail::transfer_all_t, boost::asio::detail::write_dynbuf_v1_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor>, boost::asio::basic_streambuf_ref<std::__1::allocator<char> >, boost::asio::detail::transfer_all_t, SimpleWeb::ServerBase<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor> >::Response::send_on_delete(std::__1::function<void (boost::system::error_code const&)> const&)::'lambda'(boost::system::error_code const&, unsigned long)> >, boost::system::error_code, unsigned long>&) at handler_invoke_helpers.hpp:37:3
    frame #29: 0x00000001002e2e69 web_server`void boost::asio::detail::io_object_executor<boost::asio::executor>::dispatch<boost::asio::detail::binder2<boost::asio::detail::write_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor>, boost::asio::const_buffers_1, boost::asio::const_buffer const*, boost::asio::detail::transfer_all_t, boost::asio::detail::write_dynbuf_v1_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor>, boost::asio::basic_streambuf_ref<std::__1::allocator<char> >, boost::asio::detail::transfer_all_t, SimpleWeb::ServerBase<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor> >::Response::send_on_delete(this=0x00007ffeef968140, f=0x00007ffeef968190, a=0x00007ffeef9680f0)> const&)::'lambda'(boost::system::error_code const&, unsigned long)> >, boost::system::error_code, unsigned long>, std::__1::allocator<void> >(boost::asio::detail::binder2<boost::asio::detail::write_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor>, boost::asio::const_buffers_1, boost::asio::const_buffer const*, boost::asio::detail::transfer_all_t, boost::asio::detail::write_dynbuf_v1_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor>, boost::asio::basic_streambuf_ref<std::__1::allocator<char> >, boost::asio::detail::transfer_all_t, SimpleWeb::ServerBase<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor> >::Response::send_on_delete(std::__1::function<void (boost::system::error_code const&)> const&)::'lambda'(boost::system::error_code const&, unsigned long)> >, boost::system::error_code, unsigned long>&&, std::__1::allocator<void> const&) const at io_object_executor.hpp:119:9
    frame #30: 0x00000001002e2a12 web_server`void boost::asio::detail::handler_work<boost::asio::detail::write_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor>, boost::asio::const_buffers_1, boost::asio::const_buffer const*, boost::asio::detail::transfer_all_t, boost::asio::detail::write_dynbuf_v1_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor>, boost::asio::basic_streambuf_ref<std::__1::allocator<char> >, boost::asio::detail::transfer_all_t, SimpleWeb::ServerBase<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor> >::Response::send_on_delete(std::__1::function<void (boost::system::error_code const&)> const&)::'lambda'(boost::system::error_code const&, unsigned long)> >, boost::asio::detail::io_object_executor<boost::asio::executor>, boost::asio::detail::io_object_executor<boost::asio::executor> >::complete<boost::asio::detail::binder2<boost::asio::detail::write_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor>, boost::asio::const_buffers_1, boost::asio::const_buffer const*, boost::asio::detail::transfer_all_t, boost::asio::detail::write_dynbuf_v1_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor>, boost::asio::basic_streambuf_ref<std::__1::allocator<char> >, boost::asio::detail::transfer_all_t, SimpleWeb::ServerBase<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor> >::Response::send_on_delete(this=0x00007ffeef968130, function=0x00007ffeef968190, handler=0x00007ffeef968190)> const&)::'lambda'(boost::system::error_code const&, unsigned long)> >, boost::system::error_code, unsigned long> >(boost::asio::detail::binder2<boost::asio::detail::write_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor>, boost::asio::const_buffers_1, boost::asio::const_buffer const*, boost::asio::detail::transfer_all_t, boost::asio::detail::write_dynbuf_v1_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor>, boost::asio::basic_streambuf_ref<std::__1::allocator<char> >, boost::asio::detail::transfer_all_t, SimpleWeb::ServerBase<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor> >::Response::send_on_delete(std::__1::function<void (boost::system::error_code const&)> const&)::'lambda'(boost::system::error_code const&, unsigned long)> >, boost::system::error_code, unsigned long>&, boost::asio::detail::write_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor>, boost::asio::const_buffers_1, boost::asio::const_buffer const*, boost::asio::detail::transfer_all_t, boost::asio::detail::write_dynbuf_v1_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor>, boost::asio::basic_streambuf_ref<std::__1::allocator<char> >, boost::asio::detail::transfer_all_t, SimpleWeb::ServerBase<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor> >::Response::send_on_delete(std::__1::function<void (boost::system::error_code const&)> const&)::'lambda'(boost::system::error_code const&, unsigned long)> >&) at handler_work.hpp:72:15
    frame #31: 0x00000001002e26cd web_server`boost::asio::detail::reactive_socket_send_op<boost::asio::const_buffers_1, boost::asio::detail::write_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor>, boost::asio::const_buffers_1, boost::asio::const_buffer const*, boost::asio::detail::transfer_all_t, boost::asio::detail::write_dynbuf_v1_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor>, boost::asio::basic_streambuf_ref<std::__1::allocator<char> >, boost::asio::detail::transfer_all_t, SimpleWeb::ServerBase<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor> >::Response::send_on_delete(std::__1::function<void (boost::system::error_code const&)> const&)::'lambda'(boost::system::error_code const&, unsigned long)> >, boost::asio::detail::io_object_executor<boost::asio::executor> >::do_complete(owner=0x00007ff42f504630, base=0x00007ff42f7043d0, (null)=0x00007ffeef968428, (null)=0) at reactive_socket_send_op.hpp:122:9
    frame #32: 0x00000001002a8ee7 web_server`boost::asio::detail::scheduler_operation::complete(this=0x00007ff42f7043d0, owner=0x00007ff42f504630, ec=0x00007ffeef968428, bytes_transferred=0) at scheduler_operation.hpp:40:5
    frame #33: 0x00000001002a82d9 web_server`boost::asio::detail::scheduler::do_run_one(this=0x00007ff42f504630, lock=0x00007ffeef968370, this_thread=0x00007ffeef9683a8, ec=0x00007ffeef968428) at scheduler.ipp:447:12
    frame #34: 0x00000001002a7edf web_server`boost::asio::detail::scheduler::run(this=0x00007ff42f504630, ec=0x00007ffeef968428) at scheduler.ipp:200:10
    frame #35: 0x0000000100309bd1 web_server`boost::asio::io_context::run(this=0x00007ff42f5045b8) at io_context.ipp:63:24
    frame #36: 0x000000010029a61c web_server`SimpleWeb::ServerBase<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::executor> >::start(this=0x00007ffeef9687c0, callback=0x00007ffeef968790)> const&) at server_http.hpp:463:23
    frame #37: 0x0000000100299bc9 web_server`main at main.cpp:16:10
    frame #38: 0x00007fff68ce2cc9 libdyld.dylib`start + 1
    frame #39: 0x00007fff68ce2cc9 libdyld.dylib`start + 1