mirror of
https://github.com/go-gitea/gitea.git
synced 2024-12-28 02:58:07 +08:00
107 lines
2.7 KiB
Go
107 lines
2.7 KiB
Go
|
package denco
|
||
|
|
|
||
|
|
import (
|
||
|
|
"net/http"
|
||
|
|
)
|
||
|
|
|
||
|
|
// Mux represents a multiplexer for HTTP request.
|
||
|
|
type Mux struct{}
|
||
|
|
|
||
|
|
// NewMux returns a new Mux.
|
||
|
|
func NewMux() *Mux {
|
||
|
|
return &Mux{}
|
||
|
|
}
|
||
|
|
|
||
|
|
// GET is shorthand of Mux.Handler("GET", path, handler).
|
||
|
|
func (m *Mux) GET(path string, handler HandlerFunc) Handler {
|
||
|
|
return m.Handler("GET", path, handler)
|
||
|
|
}
|
||
|
|
|
||
|
|
// POST is shorthand of Mux.Handler("POST", path, handler).
|
||
|
|
func (m *Mux) POST(path string, handler HandlerFunc) Handler {
|
||
|
|
return m.Handler("POST", path, handler)
|
||
|
|
}
|
||
|
|
|
||
|
|
// PUT is shorthand of Mux.Handler("PUT", path, handler).
|
||
|
|
func (m *Mux) PUT(path string, handler HandlerFunc) Handler {
|
||
|
|
return m.Handler("PUT", path, handler)
|
||
|
|
}
|
||
|
|
|
||
|
|
// HEAD is shorthand of Mux.Handler("HEAD", path, handler).
|
||
|
|
func (m *Mux) HEAD(path string, handler HandlerFunc) Handler {
|
||
|
|
return m.Handler("HEAD", path, handler)
|
||
|
|
}
|
||
|
|
|
||
|
|
// Handler returns a handler for HTTP method.
|
||
|
|
func (m *Mux) Handler(method, path string, handler HandlerFunc) Handler {
|
||
|
|
return Handler{
|
||
|
|
Method: method,
|
||
|
|
Path: path,
|
||
|
|
Func: handler,
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Build builds a http.Handler.
|
||
|
|
func (m *Mux) Build(handlers []Handler) (http.Handler, error) {
|
||
|
|
recordMap := make(map[string][]Record)
|
||
|
|
for _, h := range handlers {
|
||
|
|
recordMap[h.Method] = append(recordMap[h.Method], NewRecord(h.Path, h.Func))
|
||
|
|
}
|
||
|
|
mux := newServeMux()
|
||
|
|
for m, records := range recordMap {
|
||
|
|
router := New()
|
||
|
|
if err := router.Build(records); err != nil {
|
||
|
|
return nil, err
|
||
|
|
}
|
||
|
|
mux.routers[m] = router
|
||
|
|
}
|
||
|
|
return mux, nil
|
||
|
|
}
|
||
|
|
|
||
|
|
// Handler represents a handler of HTTP request.
|
||
|
|
type Handler struct {
|
||
|
|
// Method is an HTTP method.
|
||
|
|
Method string
|
||
|
|
|
||
|
|
// Path is a routing path for handler.
|
||
|
|
Path string
|
||
|
|
|
||
|
|
// Func is a function of handler of HTTP request.
|
||
|
|
Func HandlerFunc
|
||
|
|
}
|
||
|
|
|
||
|
|
// The HandlerFunc type is aliased to type of handler function.
|
||
|
|
type HandlerFunc func(w http.ResponseWriter, r *http.Request, params Params)
|
||
|
|
|
||
|
|
type serveMux struct {
|
||
|
|
routers map[string]*Router
|
||
|
|
}
|
||
|
|
|
||
|
|
func newServeMux() *serveMux {
|
||
|
|
return &serveMux{
|
||
|
|
routers: make(map[string]*Router),
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// ServeHTTP implements http.Handler interface.
|
||
|
|
func (mux *serveMux) ServeHTTP(w http.ResponseWriter, r *http.Request) {
|
||
|
|
handler, params := mux.handler(r.Method, r.URL.Path)
|
||
|
|
handler(w, r, params)
|
||
|
|
}
|
||
|
|
|
||
|
|
func (mux *serveMux) handler(method, path string) (HandlerFunc, []Param) {
|
||
|
|
if router, found := mux.routers[method]; found {
|
||
|
|
if handler, params, found := router.Lookup(path); found {
|
||
|
|
return handler.(HandlerFunc), params
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return NotFound, nil
|
||
|
|
}
|
||
|
|
|
||
|
|
// NotFound replies to the request with an HTTP 404 not found error.
|
||
|
|
// NotFound is called when unknown HTTP method or a handler not found.
|
||
|
|
// If you want to use the your own NotFound handler, please overwrite this variable.
|
||
|
|
var NotFound = func(w http.ResponseWriter, r *http.Request, _ Params) {
|
||
|
|
http.NotFound(w, r)
|
||
|
|
}
|