🔥 Added HTTP2 support to server.

app.go

@@ -32,6 +32,7 @@ import (
 
 	"encoding/json"
 
+	"github.com/dgrr/http2"
 	"github.com/gofiber/fiber/v2/internal/colorable"
 	"github.com/gofiber/fiber/v2/internal/isatty"
 	"github.com/gofiber/fiber/v2/utils"
@@ -338,6 +339,12 @@ type Config struct {
 	// Default: NetworkTCP4
 	Network string
 
+	// Known protocols are "ProtoV1", "ProtoV2"
+	// WARNING: ProtoV2 (http2) only will work with TLS.
+	//
+	// Default: ProtoV1
+	HttpProtocolVersion int
+
 	// If you find yourself behind some sort of proxy, like a load balancer,
 	// then certain header information may be sent to you using special X-Forwarded-* headers or the Forwarded header.
 	// For example, the Host HTTP header is usually used to return the requested host.
@@ -430,6 +437,12 @@ const (
 	DefaultCompressedFileSuffix = ".fiber.gz"
 )
 
+// Values for app configurator to specify http protocol
+const (
+	ProtoV1 = 1
+	ProtoV2 = 2
+)
+
 // DefaultErrorHandler that process return errors from handlers
 var DefaultErrorHandler = func(c *Ctx, err error) error {
 	code := StatusInternalServerError
@@ -515,6 +528,9 @@ func New(config ...Config) *App {
 	if app.config.Network == "" {
 		app.config.Network = NetworkTCP4
 	}
+	if app.config.HttpProtocolVersion == 0 {
+		app.config.HttpProtocolVersion = ProtoV1
+	}
 
 	app.config.trustedProxiesMap = make(map[string]struct{}, len(app.config.TrustedProxies))
 	for _, ipAddress := range app.config.TrustedProxies {
@@ -801,6 +817,11 @@ func (app *App) Listen(addr string) error {
 	if app.config.EnablePrintRoutes {
 		app.printRoutesMessage()
 	}
+	if app.config.HttpProtocolVersion == ProtoV2 {
+		if !IsChild() {
+			fmt.Println("[Warning] ProtoV2 should be used with 'ListenTLS' or 'ListenMutualTLS'")
+		}
+	}
 	// Start listening
 	return app.server.Serve(ln)
 }
@@ -842,6 +863,10 @@ func (app *App) ListenTLS(addr, certFile, keyFile string) error {
 	if app.config.EnablePrintRoutes {
 		app.printRoutesMessage()
 	}
+	// Configuring http protocol
+	if app.config.HttpProtocolVersion == ProtoV2 {
+		http2.ConfigureServer(app.server, http2.ServerConfig{})
+	}
 	// Start listening
 	return app.server.ServeTLS(ln, certFile, keyFile)
 }
@@ -900,6 +925,11 @@ func (app *App) ListenMutualTLS(addr, certFile, keyFile, clientCertFile string)
 		app.printRoutesMessage()
 	}
 
+	// Configuring http protocol
+	if app.config.HttpProtocolVersion == ProtoV2 {
+		http2.ConfigureServer(app.server, http2.ServerConfig{})
+	}
+
 	// Start listening
 	return app.server.Serve(ln)
 }

app_test.go

@@ -1247,6 +1247,33 @@ func Test_App_Listener_TLS_Listener(t *testing.T) {
 	utils.AssertEqual(t, nil, app.Listener(ln))
 }
 
+func Test_App_Http_Proto_Config(t *testing.T) {
+	app := New(Config{
+		HttpProtocolVersion: ProtoV1,
+	})
+
+	go func() {
+		time.Sleep(time.Millisecond * 500)
+		utils.AssertEqual(t, nil, app.Shutdown())
+	}()
+
+	app.Get("/", func(c *Ctx) error {
+		return c.Status(200).Send([]byte("Hi there"))
+	})
+
+	if err := app.ListenTLS(":8080", "./.github/testdata/ssl.pem", "./.github/testdata/ssl.key"); err != nil {
+		utils.AssertEqual(t, nil, err)
+	}
+
+	resp, err := app.Test(httptest.NewRequest(MethodGet, "/", nil))
+	if err != nil {
+		utils.AssertEqual(t, nil, err)
+	}
+	// ProtoV2 test case yet omited, as the cliend yet not configured to support http2
+	// In order to check HTTP/2 - run the server with ProtoV2 and connect with any modern webbrowser
+	utils.AssertEqual(t, "HTTP/1.1", resp.Proto, "Protocol name")
+}
+
 // go test -v -run=^$ -bench=Benchmark_AcquireCtx -benchmem -count=4
 func Benchmark_AcquireCtx(b *testing.B) {
 	app := New()

go.mod

@@ -3,6 +3,7 @@ module github.com/gofiber/fiber/v2
 go 1.16
 
 require (
+	github.com/dgrr/http2 v0.3.5
 	github.com/valyala/fasthttp v1.37.0
 	golang.org/x/sys v0.0.0-20220227234510-4e6760a101f9
 )

go.sum

@@ -1,19 +1,36 @@
 github.com/andybalholm/brotli v1.0.4 h1:V7DdXeJtZscaqfNuAdSRuRFzuiKlHSC/Zh3zl9qY3JY=
 github.com/andybalholm/brotli v1.0.4/go.mod h1:fO7iG3H7G2nSZ7m0zPUDn85XEX2GTukHGRSepvi9Eig=
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/dgrr/http2 v0.3.5 h1:R54Afxa+yX21j64nbh3+qcj8vhvfuCows0NCxk83c54=
+github.com/dgrr/http2 v0.3.5/go.mod h1:ZYb0czp1g5/p7q01JWWKA6qkERz8SScP8KL62ugeqes=
+github.com/fatih/color v1.13.0/go.mod h1:kLAiJbzzSOZDVNGyDpeOxJ47H46qBXwg5ILebYFFOfk=
 github.com/klauspost/compress v1.15.0 h1:xqfchp4whNFxn5A4XFyyYtitiWI8Hy5EW59jEwcyL6U=
 github.com/klauspost/compress v1.15.0/go.mod h1:/3/Vjq9QcHkK5uEr5lBEmyoZ1iFhe47etQ6QUkpK6sk=
+github.com/mattn/go-colorable v0.1.9/go.mod h1:u6P/XSegPjTcexA+o6vUJrdnUu04hMope9wVRipJSqc=
+github.com/mattn/go-isatty v0.0.12/go.mod h1:cbi8OIDigv2wuxKPP5vlRcQ1OAZbq2CE4Kysco4FUpU=
+github.com/mattn/go-isatty v0.0.14/go.mod h1:7GGIvUiUoEMVVmxf/4nioHXj79iQHKdU27kJ6hsGG94=
+github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
+github.com/summerwind/h2spec v2.2.1+incompatible/go.mod h1:eP7IHGVDEe9cbCxRNtmGfII77lBvLgJLNfJjTaKa9sI=
 github.com/valyala/bytebufferpool v1.0.0 h1:GqA5TC/0021Y/b9FG4Oi9Mr3q7XYx6KllzawFIhcdPw=
 github.com/valyala/bytebufferpool v1.0.0/go.mod h1:6bBcMArwyJ5K/AmCkWv1jt77kVWyCJ6HpOuEn7z0Csc=
+github.com/valyala/fasthttp v1.34.0/go.mod h1:epZA5N+7pY6ZaEKRmstzOuYJx9HI8DI1oaCGZpdH4h0=
 github.com/valyala/fasthttp v1.37.0 h1:7WHCyI7EAkQMVmrfBhWTCOaeROb1aCBiTopx63LkMbE=
 github.com/valyala/fasthttp v1.37.0/go.mod h1:t/G+3rLek+CyY9bnIE+YlMRddxVAAGjhxndDB4i4C0I=
+github.com/valyala/fastrand v1.0.0 h1:LUKT9aKer2dVQNUi3waewTbKV+7H17kvWFNKs2ObdkI=
+github.com/valyala/fastrand v1.0.0/go.mod h1:HWqCzkrkg6QXT8V2EXWvXCoow7vLwOFN002oeRzjapQ=
 github.com/valyala/tcplisten v1.0.0 h1:rBHj/Xf+E1tRGZyWIWwJDiRY0zc1Js+CV5DqwacVSA8=
 github.com/valyala/tcplisten v1.0.0/go.mod h1:T0xQ8SeCZGxckz9qRXTfG43PvQ/mcWh7FwZEA7Ioqkc=
 golang.org/x/crypto v0.0.0-20220214200702-86341886e292/go.mod h1:IxCIyHEi3zRg3s0A5j5BB6A9Jmi73HwBIUl50j+osU4=
 golang.org/x/net v0.0.0-20211112202133-69e39bad7dc2/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
 golang.org/x/net v0.0.0-20220225172249-27dd8689420f/go.mod h1:CfG3xpIq0wQ8r1q4Su4UZFWDARRcnwPjda9FqA0JpMk=
+golang.org/x/sys v0.0.0-20200116001909-b77594299b42/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20200223170610-d5e6a3e2c0ae/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210423082822-04245dca01da/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.0.0-20210630005230-0f9fa26af87c/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20211216021012-1d35b9e2eb4e/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20220227234510-4e6760a101f9 h1:nhht2DYV/Sn3qOayu8lM+cU1ii9sTLUeBQwQQfUHtrs=
 golang.org/x/sys v0.0.0-20220227234510-4e6760a101f9/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
@@ -22,3 +39,5 @@ golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuX
 golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=