1 files changed, 211 insertions, 0 deletions
diff --git a/modules/web/route.go b/modules/web/route.go
new file mode 100644
index 0000000..805fcb4
--- /dev/null
+++ b/modules/web/route.go
@@ -0,0 +1,211 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package web
+
+import (
+	"net/http"
+	"strings"
+
+	"code.gitea.io/gitea/modules/web/middleware"
+
+	"gitea.com/go-chi/binding"
+	"github.com/go-chi/chi/v5"
+)
+
+// Bind binding an obj to a handler's context data
+func Bind[T any](_ T) http.HandlerFunc {
+	return func(resp http.ResponseWriter, req *http.Request) {
+		theObj := new(T) // create a new form obj for every request but not use obj directly
+		data := middleware.GetContextData(req.Context())
+		binding.Bind(req, theObj)
+		SetForm(data, theObj)
+		middleware.AssignForm(theObj, data)
+	}
+}
+
+// SetForm set the form object
+func SetForm(dataStore middleware.ContextDataStore, obj any) {
+	dataStore.GetData()["__form"] = obj
+}
+
+// GetForm returns the validate form information
+func GetForm(dataStore middleware.ContextDataStore) any {
+	return dataStore.GetData()["__form"]
+}
+
+// Route defines a route based on chi's router
+type Route struct {
+	R              chi.Router
+	curGroupPrefix string
+	curMiddlewares []any
+}
+
+// NewRoute creates a new route
+func NewRoute() *Route {
+	r := chi.NewRouter()
+	return &Route{R: r}
+}
+
+// Use supports two middlewares
+func (r *Route) Use(middlewares ...any) {
+	for _, m := range middlewares {
+		if m != nil {
+			r.R.Use(toHandlerProvider(m))
+		}
+	}
+}
+
+// Group mounts a sub-Router along a `pattern` string.
+func (r *Route) Group(pattern string, fn func(), middlewares ...any) {
+	previousGroupPrefix := r.curGroupPrefix
+	previousMiddlewares := r.curMiddlewares
+	r.curGroupPrefix += pattern
+	r.curMiddlewares = append(r.curMiddlewares, middlewares...)
+
+	fn()
+
+	r.curGroupPrefix = previousGroupPrefix
+	r.curMiddlewares = previousMiddlewares
+}
+
+func (r *Route) getPattern(pattern string) string {
+	newPattern := r.curGroupPrefix + pattern
+	if !strings.HasPrefix(newPattern, "/") {
+		newPattern = "/" + newPattern
+	}
+	if newPattern == "/" {
+		return newPattern
+	}
+	return strings.TrimSuffix(newPattern, "/")
+}
+
+func (r *Route) wrapMiddlewareAndHandler(h []any) ([]func(http.Handler) http.Handler, http.HandlerFunc) {
+	handlerProviders := make([]func(http.Handler) http.Handler, 0, len(r.curMiddlewares)+len(h)+1)
+	for _, m := range r.curMiddlewares {
+		if m != nil {
+			handlerProviders = append(handlerProviders, toHandlerProvider(m))
+		}
+	}
+	for _, m := range h {
+		if h != nil {
+			handlerProviders = append(handlerProviders, toHandlerProvider(m))
+		}
+	}
+	middlewares := handlerProviders[:len(handlerProviders)-1]
+	handlerFunc := handlerProviders[len(handlerProviders)-1](nil).ServeHTTP
+	mockPoint := RouteMockPoint(MockAfterMiddlewares)
+	if mockPoint != nil {
+		middlewares = append(middlewares, mockPoint)
+	}
+	return middlewares, handlerFunc
+}
+
+// Methods adds the same handlers for multiple http "methods" (separated by ",").
+// If any method is invalid, the lower level router will panic.
+func (r *Route) Methods(methods, pattern string, h ...any) {
+	middlewares, handlerFunc := r.wrapMiddlewareAndHandler(h)
+	fullPattern := r.getPattern(pattern)
+	if strings.Contains(methods, ",") {
+		methods := strings.Split(methods, ",")
+		for _, method := range methods {
+			r.R.With(middlewares...).Method(strings.TrimSpace(method), fullPattern, handlerFunc)
+		}
+	} else {
+		r.R.With(middlewares...).Method(methods, fullPattern, handlerFunc)
+	}
+}
+
+// Mount attaches another Route along ./pattern/*
+func (r *Route) Mount(pattern string, subR *Route) {
+	subR.Use(r.curMiddlewares...)
+	r.R.Mount(r.getPattern(pattern), subR.R)
+}
+
+// Any delegate requests for all methods
+func (r *Route) Any(pattern string, h ...any) {
+	middlewares, handlerFunc := r.wrapMiddlewareAndHandler(h)
+	r.R.With(middlewares...).HandleFunc(r.getPattern(pattern), handlerFunc)
+}
+
+// Delete delegate delete method
+func (r *Route) Delete(pattern string, h ...any) {
+	r.Methods("DELETE", pattern, h...)
+}
+
+// Get delegate get method
+func (r *Route) Get(pattern string, h ...any) {
+	r.Methods("GET", pattern, h...)
+}
+
+// Head delegate head method
+func (r *Route) Head(pattern string, h ...any) {
+	r.Methods("HEAD", pattern, h...)
+}
+
+// Post delegate post method
+func (r *Route) Post(pattern string, h ...any) {
+	r.Methods("POST", pattern, h...)
+}
+
+// Put delegate put method
+func (r *Route) Put(pattern string, h ...any) {
+	r.Methods("PUT", pattern, h...)
+}
+
+// Patch delegate patch method
+func (r *Route) Patch(pattern string, h ...any) {
+	r.Methods("PATCH", pattern, h...)
+}
+
+// ServeHTTP implements http.Handler
+func (r *Route) ServeHTTP(w http.ResponseWriter, req *http.Request) {
+	r.R.ServeHTTP(w, req)
+}
+
+// NotFound defines a handler to respond whenever a route could not be found.
+func (r *Route) NotFound(h http.HandlerFunc) {
+	r.R.NotFound(h)
+}
+
+// Combo delegates requests to Combo
+func (r *Route) Combo(pattern string, h ...any) *Combo {
+	return &Combo{r, pattern, h}
+}
+
+// Combo represents a tiny group routes with same pattern
+type Combo struct {
+	r       *Route
+	pattern string
+	h       []any
+}
+
+// Get delegates Get method
+func (c *Combo) Get(h ...any) *Combo {
+	c.r.Get(c.pattern, append(c.h, h...)...)
+	return c
+}
+
+// Post delegates Post method
+func (c *Combo) Post(h ...any) *Combo {
+	c.r.Post(c.pattern, append(c.h, h...)...)
+	return c
+}
+
+// Delete delegates Delete method
+func (c *Combo) Delete(h ...any) *Combo {
+	c.r.Delete(c.pattern, append(c.h, h...)...)
+	return c
+}
+
+// Put delegates Put method
+func (c *Combo) Put(h ...any) *Combo {
+	c.r.Put(c.pattern, append(c.h, h...)...)
+	return c
+}
+
+// Patch delegates Patch method
+func (c *Combo) Patch(h ...any) *Combo {
+	c.r.Patch(c.pattern, append(c.h, h...)...)
+	return c
+}