server-go/web/fasthttp/server-handler.go
crusader 1ce4b594b3 ing
2018-04-06 12:39:41 +09:00

122 lines
2.6 KiB
Go

package fasthttp
import (
"fmt"
"strings"
logging "git.loafle.net/commons/logging-go"
"git.loafle.net/commons/server-go"
"git.loafle.net/commons/server-go/web"
"github.com/valyala/fasthttp"
)
type ServerHandler interface {
web.ServerHandler
OnError(serverCtx server.ServerCtx, ctx *fasthttp.RequestCtx, status int, reason error)
RegisterServlet(path string, servlet Servlet)
Servlet(serverCtx server.ServerCtx, ctx *fasthttp.RequestCtx) Servlet
CheckOrigin(ctx *fasthttp.RequestCtx) bool
}
type ServerHandlers struct {
web.ServerHandlers
NotFoundServelt Servlet
// path = context only.
// ex) /auth => /auth, /auth/member => /auth
servlets map[string]Servlet
}
func (sh *ServerHandlers) Init(serverCtx server.ServerCtx) error {
if err := sh.ServerHandlers.Init(serverCtx); nil != err {
return err
}
if nil != sh.servlets {
for _, servlet := range sh.servlets {
if err := servlet.Init(serverCtx); nil != err {
return err
}
}
}
return nil
}
func (sh *ServerHandlers) Destroy(serverCtx server.ServerCtx) {
if nil != sh.servlets {
for _, servlet := range sh.servlets {
servlet.Destroy(serverCtx)
}
}
sh.ServerHandlers.Destroy(serverCtx)
}
func (sh *ServerHandlers) OnError(serverCtx server.ServerCtx, ctx *fasthttp.RequestCtx, status int, reason error) {
}
func (sh *ServerHandlers) RegisterServlet(contextPath string, servlet Servlet) {
if nil == sh.servlets {
sh.servlets = make(map[string]Servlet)
}
sh.servlets[contextPath] = servlet
}
func (sh *ServerHandlers) Servlet(serverCtx server.ServerCtx, ctx *fasthttp.RequestCtx) Servlet {
contextPath, err := getContextPath(string(ctx.Path()))
if nil != err {
logging.Logger().Warnf("%v", err)
return sh.NotFoundServelt
}
var servlet Servlet
if contextPath == "" && len(sh.servlets) == 1 {
for _, s := range sh.servlets {
servlet = s
}
} else if servlet = sh.servlets[contextPath]; nil == servlet {
return sh.NotFoundServelt
}
return servlet
}
func (sh *ServerHandlers) CheckOrigin(ctx *fasthttp.RequestCtx) bool {
return true
}
func (sh *ServerHandlers) Validate() error {
if err := sh.ServerHandlers.Validate(); nil != err {
return err
}
return nil
}
func getContextPath(path string) (string, error) {
p := strings.TrimSpace(path)
if !strings.HasPrefix(p, "/") {
return "", fmt.Errorf("The path[%s] must started /", path)
}
p = p[1:]
if strings.HasSuffix(p, "/") {
cpl := len(p) - 1
p = p[:cpl]
}
components := strings.Split(p, "/")
if 0 == len(components) {
return "", fmt.Errorf("The path[%s] is not invalid", path)
}
return fmt.Sprintf("/%s", components[0]), nil
}