config handler 추가

server/http_handler.go

@@ -1,10 +1,13 @@
 package server
 
 import (
+	"crypto/md5"
+	"encoding/hex"
 	"encoding/json"
 	"fmt"
 	"io"
 	"net/http"
+	"net/url"
 	"os"
 	"path"
 	"reflect"
@@ -56,15 +59,62 @@ func (h *houstonHandler) RegisterHandlers(serveMux *http.ServeMux, prefix string
 		return err
 	}
 
-	logger.Printf("houstonHandler registed. deployPath : %s, downloadPath : %s", h.deployPath, h.downloadPath)
-
 	if len(prefix) > 0 {
 		prefix = "/" + prefix
 	}
 	serveMux.Handle(prefix, h)
 
 	fsx := http.FileServer(http.Dir(h.deployPath))
-	serveMux.Handle(fmt.Sprintf("%s/%s/", prefix, sub_folder_name_deploys), http.StripPrefix(fmt.Sprintf("%s/%s/", prefix, sub_folder_name_deploys), fsx))
+	deployPrefix := fmt.Sprintf("%s/%s/", prefix, sub_folder_name_deploys)
+	logger.Printf("houstonHandler registed. deployPath : %s -> %s", fmt.Sprintf("%s/%s/", prefix, sub_folder_name_deploys), h.deployPath)
+	serveMux.HandleFunc(fmt.Sprintf("%s/%s/", prefix, sub_folder_name_deploys), func(w http.ResponseWriter, r *http.Request) {
+		p := strings.TrimPrefix(r.URL.Path, deployPrefix)
+		rp := strings.TrimPrefix(r.URL.RawPath, deployPrefix)
+
+		h := md5.New()
+		src := strings.TrimLeft(r.URL.Path, fmt.Sprintf("/%s/", prefix))
+
+		h.Write([]byte(src))
+		at := hex.EncodeToString(h.Sum(nil))
+
+		if len(p) < len(r.URL.Path) && (r.URL.RawPath == "" || len(rp) < len(r.URL.RawPath)) && at == r.Header.Get("As-X-UrlHash") {
+			r2 := new(http.Request)
+			*r2 = *r
+			r2.URL = new(url.URL)
+			*r2.URL = *r.URL
+			r2.URL.Path = p
+			r2.URL.RawPath = rp
+			fsx.ServeHTTP(w, r2)
+		} else {
+			http.NotFound(w, r)
+		}
+	})
+
+	// config는 접근하기 편하게 단축 경로 제공
+	serveMux.HandleFunc("/config/", func(w http.ResponseWriter, r *http.Request) {
+		logger.Println("config url.path :", r.URL.Path)
+		h := md5.New()
+		h.Write([]byte(r.URL.Path))
+		at := hex.EncodeToString(h.Sum(nil))
+		hash := r.Header.Get("As-X-UrlHash")
+		logger.Println("config at = hash :", at, hash)
+		if at == hash {
+			urlpath := strings.TrimPrefix(r.URL.Path, "/config/")
+			dir := path.Dir(urlpath)
+			file := path.Base(urlpath)
+			dest := fmt.Sprintf("%s/config/%s", dir, file)
+			logger.Println("config dest :", dest)
+			r2 := new(http.Request)
+			*r2 = *r
+			r2.URL = new(url.URL)
+			*r2.URL = *r.URL
+			r2.URL.Path = dest
+			r2.URL.RawPath = dest
+			fsx.ServeHTTP(w, r2)
+		} else {
+			http.NotFound(w, r)
+		}
+	})
 
 	ufsx := http.FileServer(http.Dir(h.downloadPath))
 	serveMux.Handle(fmt.Sprintf("%s/%s/", prefix, sub_folder_name_downloads), http.StripPrefix(fmt.Sprintf("%s/%s/", prefix, sub_folder_name_downloads), ufsx))