middleware: add static middleware (#3006)

* middleware: add static middleware

* uncomment broken tests

* introduce isfile config property to fix file issues

* test

* add io/fs support to static mw

* add io/fs support to static mw

* remove filesystem and app.Static

* fix linter

* apply review

* support disablecache

* support multi indexes

* add an example for io/fs

* update whats new & apply reviews

* update

* use fasthttp from master

* Update .github/README.md

Co-authored-by: RW <[email protected]>

* update1

* apply reviews

* update

* update

* update examples

* add more examples

---------

Co-authored-by: RW <[email protected]>

Author: efectn

.github/README.md

@@ -203,15 +203,15 @@ func main() {
 func main() {
     app := fiber.New()
 
-    app.Static("/", "./public")
+    app.Get("/*", static.New("./public"))
     // => http://localhost:3000/js/script.js
     // => http://localhost:3000/css/style.css
 
-    app.Static("/prefix", "./public")
+    app.Get("/prefix*", static.New("./public"))
     // => http://localhost:3000/prefix/js/script.js
     // => http://localhost:3000/prefix/css/style.css
 
-    app.Static("*", "./public/index.html")
+    app.Get("*", static.New("./public/index.html"))
     // => http://localhost:3000/any/path/shows/index/html
 
     log.Fatal(app.Listen(":3000"))
@@ -388,7 +388,7 @@ curl -H "Origin: http://example.com" --verbose http://localhost:3000
 func main() {
     app := fiber.New()
 
-    app.Static("/", "./public")
+    app.Get("/", static.New("./public"))
 
     app.Get("/demo", func(c fiber.Ctx) error {
         return c.SendString("This is a demo!")
@@ -586,7 +586,6 @@ Here is a list of middleware that are included within the Fiber framework.
 | [etag](https://github.com/gofiber/fiber/tree/main/middleware/etag)                   | Allows for caches to be more efficient and save bandwidth, as a web server does not need to resend a full response if the content has not changed.                      |
 | [expvar](https://github.com/gofiber/fiber/tree/main/middleware/expvar)               | Serves via its HTTP server runtime exposed variants in the JSON format.                                                                                                 |
 | [favicon](https://github.com/gofiber/fiber/tree/main/middleware/favicon)             | Ignore favicon from logs or serve from memory if a file path is provided.                                                                                               |
-| [filesystem](https://github.com/gofiber/fiber/tree/main/middleware/filesystem)       | FileSystem middleware for Fiber.                                                                                                                                        |
 | [healthcheck](https://github.com/gofiber/fiber/tree/main/middleware/healthcheck)     | Liveness and Readiness probes for Fiber.                                                                                                                                |
 | [helmet](https://github.com/gofiber/fiber/tree/main/middleware/helmet)               | Helps secure your apps by setting various HTTP headers.                                                                                                                 |
 | [idempotency](https://github.com/gofiber/fiber/tree/main/middleware/idempotency)     | Allows for fault-tolerant APIs where duplicate requests do not erroneously cause the same action performed multiple times on the server-side.                           |
@@ -601,6 +600,7 @@ Here is a list of middleware that are included within the Fiber framework.
 | [rewrite](https://github.com/gofiber/fiber/tree/main/middleware/rewrite)             | Rewrites the URL path based on provided rules. It can be helpful for backward compatibility or just creating cleaner and more descriptive links.                        |
 | [session](https://github.com/gofiber/fiber/tree/main/middleware/session)             | Session middleware. NOTE: This middleware uses our Storage package.                                                                                                     |
 | [skip](https://github.com/gofiber/fiber/tree/main/middleware/skip)                   | Skip middleware that skips a wrapped handler if a predicate is true.                                                                                                    |
+| [static](https://github.com/gofiber/fiber/tree/main/middleware/static)                   | Static middleware for Fiber that serves static files such as **images**, **CSS,** and **JavaScript**.                                                                                                   |
 | [timeout](https://github.com/gofiber/fiber/tree/main/middleware/timeout)             | Adds a max time for a request and forwards to ErrorHandler if it is exceeded.                                                                                           |
 
 ## 🧬 External Middleware

app.go

@@ -381,52 +381,6 @@ type Config struct {
 	EnableSplittingOnParsers bool `json:"enable_splitting_on_parsers"`
 }
 
-// Static defines configuration options when defining static assets.
-type Static struct {
-	// When set to true, the server tries minimizing CPU usage by caching compressed files.
-	// This works differently than the github.com/gofiber/compression middleware.
-	// Optional. Default value false
-	Compress bool `json:"compress"`
-
-	// When set to true, enables byte range requests.
-	// Optional. Default value false
-	ByteRange bool `json:"byte_range"`
-
-	// When set to true, enables directory browsing.
-	// Optional. Default value false.
-	Browse bool `json:"browse"`
-
-	// When set to true, enables direct download.
-	// Optional. Default value false.
-	Download bool `json:"download"`
-
-	// The name of the index file for serving a directory.
-	// Optional. Default value "index.html".
-	Index string `json:"index"`
-
-	// Expiration duration for inactive file handlers.
-	// Use a negative time.Duration to disable it.
-	//
-	// Optional. Default value 10 * time.Second.
-	CacheDuration time.Duration `json:"cache_duration"`
-
-	// The value for the Cache-Control HTTP-header
-	// that is set on the file response. MaxAge is defined in seconds.
-	//
-	// Optional. Default value 0.
-	MaxAge int `json:"max_age"`
-
-	// ModifyResponse defines a function that allows you to alter the response.
-	//
-	// Optional. Default: nil
-	ModifyResponse Handler
-
-	// Next defines a function to skip this middleware when returned true.
-	//
-	// Optional. Default: nil
-	Next func(c Ctx) bool
-}
-
 // RouteMessage is some message need to be print when server starts
 type RouteMessage struct {
 	name     string
@@ -780,13 +734,6 @@ func (app *App) Add(methods []string, path string, handler Handler, middleware .
 	return app
 }
 
-// Static will create a file server serving static files
-func (app *App) Static(prefix, root string, config ...Static) Router {
-	app.registerStatic(prefix, root, config...)
-
-	return app
-}
-
 // All will register the handler on all HTTP methods
 func (app *App) All(path string, handler Handler, middleware ...Handler) Router {
 	return app.Add(app.config.RequestMethods, path, handler, middleware...)