88 lines
1.6 KiB
Go
88 lines
1.6 KiB
Go
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package server
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import (
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"go-ayo/common"
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"go-ayo/logger"
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"io"
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"net/http"
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"reflect"
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"runtime/debug"
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"strings"
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)
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const (
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defaultMaxMemory = 32 << 10 // 32 KB
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)
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type HoustonServerWithHandler interface {
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HoustonServer
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RegisterHandlers(serveMux *http.ServeMux, prefix string) error
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}
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type houstonHandler struct {
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HoustonServer
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methods map[string]reflect.Method
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}
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func NewHoustonHandler() HoustonServerWithHandler {
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var tmp *houstonHandler
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methods := make(map[string]reflect.Method)
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tp := reflect.TypeOf(tmp)
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for i := 0; i < tp.NumMethod(); i++ {
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method := tp.Method(i)
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methods[strings.ToLower(method.Name)] = method
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}
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return &houstonHandler{
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HoustonServer: NewServer(),
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methods: methods,
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}
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}
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func (h *houstonHandler) RegisterHandlers(serveMux *http.ServeMux, prefix string) error {
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serveMux.Handle(common.MakeHttpHandlerPattern(prefix, "houston"), h)
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return nil
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}
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func (h *houstonHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
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defer func() {
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s := recover()
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if s != nil {
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logger.Println(s)
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debug.PrintStack()
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}
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}()
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defer func() {
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io.Copy(io.Discard, r.Body)
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r.Body.Close()
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}()
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operation := r.FormValue("operation")
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if len(operation) == 0 {
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w.WriteHeader(http.StatusBadRequest)
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return
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}
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method, ok := h.methods[strings.ToLower(operation)]
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if !ok {
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// 없는 operation
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logger.Println("fail to call api. operation is not valid :", operation)
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w.WriteHeader(http.StatusBadRequest)
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return
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}
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if r.PostForm == nil {
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r.ParseMultipartForm(defaultMaxMemory)
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}
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args := []reflect.Value{
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reflect.ValueOf(h),
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reflect.ValueOf(w),
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reflect.ValueOf(r),
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}
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method.Func.Call(args)
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}
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