fileserver/lib/restbed-4.8/documentation/example/SERVICE_AUTHENTICATION.md

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Markdown

Overview
--------
"HTTP Basic authentication (BA) implementation is the simplest technique for enforcing access controls to web resources because it does not require cookies, session identifiers, or login pages; rather, HTTP Basic authentication uses standard fields in the HTTP header, removing the need for handshakes." -- [Wikipedia](https://en.wikipedia.org/wiki/Basic_access_authentication)
Example
-------
```C++
#include <memory>
#include <cstdlib>
#include <ciso646>
#include <functional>
#include <restbed>
using namespace std;
using namespace restbed;
void authentication_handler( const shared_ptr< Session > session,
const function< void ( const shared_ptr< Session > ) >& callback )
{
auto authorisation = session->get_request( )->get_header( "Authorization" );
if ( authorisation not_eq "Basic Q29ydnVzb2Z0OkdsYXNnb3c=" )
{
session->close( UNAUTHORIZED, { { "WWW-Authenticate", "Basic realm=\"restbed\"" } } );
}
else
{
callback( session );
}
}
void get_method_handler( const shared_ptr< Session > session )
{
session->close( OK, "Password Protected Hello, World!", { { "Content-Length", "32" } } );
}
int main( const int, const char** )
{
auto resource = make_shared< Resource >( );
resource->set_path( "/resource" );
resource->set_method_handler( "GET", get_method_handler );
auto settings = make_shared< Settings >( );
settings->set_port( 1984 );
settings->set_default_header( "Connection", "close" );
Service service;
service.publish( resource );
service.set_authentication_handler( authentication_handler );
service.start( settings );
return EXIT_SUCCESS;
}
```
Build
-----
> $ clang++ -o example example.cpp -l restbed
Execution
---------
> $ ./example
>
> $ curl -w'\n' -v -XGET 'http://Corvusoft:Glasgow@localhost:1984/resource'