refactoring to separate master and volume server, so that these servers

can be embedded into other applications

go/weed/weed.go

@@ -10,6 +10,7 @@ import (
 	"net"
 	"net/http"
 	"os"
+	"path/filepath"
 	"strings"
 	"sync"
 	"text/template"
@@ -244,3 +245,36 @@ func secure(whiteList []string, f func(w http.ResponseWriter, r *http.Request))
 		writeJsonQuiet(w, r, map[string]interface{}{"error": "No write permisson from " + host})
 	}
 }
+
+func parseURLPath(path string) (vid, fid, filename, ext string, isVolumeIdOnly bool) {
+	switch strings.Count(path, "/") {
+	case 3:
+		parts := strings.Split(path, "/")
+		vid, fid, filename = parts[1], parts[2], parts[3]
+		ext = filepath.Ext(filename)
+	case 2:
+		parts := strings.Split(path, "/")
+		vid, fid = parts[1], parts[2]
+		dotIndex := strings.LastIndex(fid, ".")
+		if dotIndex > 0 {
+			ext = fid[dotIndex:]
+			fid = fid[0:dotIndex]
+		}
+	default:
+		sepIndex := strings.LastIndex(path, "/")
+		commaIndex := strings.LastIndex(path[sepIndex:], ",")
+		if commaIndex <= 0 {
+			vid, isVolumeIdOnly = path[sepIndex+1:], true
+			return
+		}
+		dotIndex := strings.LastIndex(path[sepIndex:], ".")
+		vid = path[sepIndex+1 : commaIndex]
+		fid = path[commaIndex+1:]
+		ext = ""
+		if dotIndex > 0 {
+			fid = path[commaIndex+1 : dotIndex]
+			ext = path[dotIndex:]
+		}
+	}
+	return
+}