unikernels/SOURCE/UNIKERNEL/WebServer/service.cpp

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2018-05-11 20:51:48 +07:00
/*
* This code is adapted from the IncludeOS Acorn web server example.
*/
#include <service>
#include <net/inet4>
#include <net/http/server.hpp>
#include <memdisk>
std::unique_ptr<http::Server> server;
void Service::start()
{
// Retreive the stack (configured from outside)
auto& inet = net::Inet4::stack<0>();
Expects(inet.is_configured());
// Init the memdisk
auto& disk = fs::memdisk();
disk.init_fs([] (auto err, auto&) {
Expects(not err);
});
// Retreive the HTML page from the disk
auto file = disk.fs().read_file("/index.html");
Expects(file.is_valid());
net::tcp::buffer_t html(
new std::vector<uint8_t> (file.data(), file.data() + file.size()));
// Create a HTTP Server and setup request handling
server = std::make_unique<http::Server>(inet.tcp());
server->on_request([html] (auto req, auto rw)
{
// We only support get
if(req->method() != http::GET) {
rw->write_header(http::Not_Found);
return;
}
// Serve HTML on /
if(req->uri() == "/") {
rw->write(html);
} else {
rw->write_header(http::Not_Found);
}
});
// Start listening on port 80
server->listen(80);
}