gosora/router.go

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package main
//import "fmt"
import "strings"
import "sync"
import "net/http"
type Router struct {
mu sync.RWMutex
routes map[string]func(http.ResponseWriter, *http.Request)
}
func NewRouter() *Router {
return &Router{
routes: make(map[string]func(http.ResponseWriter, *http.Request)),
}
}
func (router *Router) Handle(pattern string, handle http.Handler) {
router.routes[pattern] = handle.ServeHTTP
}
func (router *Router) HandleFunc(pattern string, handle func(http.ResponseWriter, *http.Request)) {
router.routes[pattern] = handle
}
func (router *Router) ServeHTTP(w http.ResponseWriter, req *http.Request) {
router.mu.RLock()
defer router.mu.RUnlock()
if req.URL.Path[0] != '/' {
w.WriteHeader(405)
w.Write([]byte(""))
return
}
// Do something on the path to turn slashes facing the wrong way "\" into "/" slashes. If it's bytes, then alter the bytes in place for the maximum speed
handle, ok := router.routes[req.URL.Path]
if ok {
handle(w,req)
return
}
if req.URL.Path[len(req.URL.Path) - 1] == '/' {
NotFound(w,req)
return
}
handle, ok = router.routes[req.URL.Path[:strings.LastIndexByte(req.URL.Path,'/') + 1]]
if ok {
handle(w,req)
return
}
//fmt.Println(req.URL.Path[:strings.LastIndexByte(req.URL.Path,'/')])
handle, ok = router.routes[req.URL.Path + "/"]
if ok {
handle(w,req)
return
}
NotFound(w,req)
return
}