mirror of
https://github.com/wpilibsuite/allwpilib
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d88c71ffdc
We now use a wrapper (wpi::print) to catch exceptions since we can't patch std::print() to not throw when we ultimately migrate to it. fmtlib and std format/print throw the same exceptions and always have. We previously patched fmt::print() to not throw a write failure exception, but we can't do that for std::print(); wpi::print() is the migration plan.
89 lines
2.3 KiB
C++
89 lines
2.3 KiB
C++
// Copyright (c) FIRST and other WPILib contributors.
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// Open Source Software; you can modify and/or share it under the terms of
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// the WPILib BSD license file in the root directory of this project.
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#include <cstdio>
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#include <wpi/print.h>
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#include "wpinet/EventLoopRunner.h"
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#include "wpinet/HttpServerConnection.h"
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#include "wpinet/UrlParser.h"
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#include "wpinet/uv/Loop.h"
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#include "wpinet/uv/Tcp.h"
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namespace uv = wpi::uv;
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class MyHttpServerConnection : public wpi::HttpServerConnection {
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public:
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explicit MyHttpServerConnection(std::shared_ptr<uv::Stream> stream)
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: HttpServerConnection(stream) {}
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protected:
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void ProcessRequest() override;
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};
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void MyHttpServerConnection::ProcessRequest() {
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wpi::print(stderr, "HTTP request: '{}'\n", m_request.GetUrl());
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wpi::UrlParser url{m_request.GetUrl(),
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m_request.GetMethod() == wpi::HTTP_CONNECT};
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if (!url.IsValid()) {
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// failed to parse URL
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SendError(400);
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return;
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}
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std::string_view path;
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if (url.HasPath()) {
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path = url.GetPath();
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}
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wpi::print(stderr, "path: \"{}\"\n", path);
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std::string_view query;
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if (url.HasQuery()) {
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query = url.GetQuery();
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}
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wpi::print(stderr, "query: \"{}\"\n", query);
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const bool isGET = m_request.GetMethod() == wpi::HTTP_GET;
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if (isGET && path == "/") {
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// build HTML root page
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SendResponse(200, "OK", "text/html",
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"<html><head><title>WebServer Example</title></head>"
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"<body><p>This is an example root page from the webserver."
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"</body></html>");
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} else {
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SendError(404, "Resource not found");
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}
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}
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int main() {
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// Kick off the event loop on a separate thread
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wpi::EventLoopRunner loop;
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loop.ExecAsync([](uv::Loop& loop) {
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auto tcp = uv::Tcp::Create(loop);
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// bind to listen address and port
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tcp->Bind("", 8080);
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// when we get a connection, accept it and start reading
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tcp->connection.connect([srv = tcp.get()] {
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auto tcp = srv->Accept();
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if (!tcp) {
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return;
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}
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std::fputs("Got a connection\n", stderr);
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auto conn = std::make_shared<MyHttpServerConnection>(tcp);
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tcp->SetData(conn);
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});
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// start listening for incoming connections
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tcp->Listen();
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std::fputs("Listening on port 8080\n", stderr);
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});
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// wait for a keypress to terminate
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std::getchar();
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}
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