casibase/controllers/file_cache.go

97 lines
2.1 KiB
Go

// Copyright 2023 The casbin Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package controllers
import (
"fmt"
"strings"
"github.com/astaxie/beego"
"github.com/casibase/casibase/util"
)
var (
cacheDir string
appDir string
cacheMap = map[string]string{}
)
func init() {
cacheDir = beego.AppConfig.String("cacheDir")
appDir = beego.AppConfig.String("appDir")
}
func getAppPath(filename string) string {
return fmt.Sprintf("%s/%s.ctf", appDir, filename)
}
func getCachePrefix(filename string) string {
if !strings.HasPrefix(filename, "ECG_") && !strings.HasPrefix(filename, "EEG_") && !strings.HasPrefix(filename, "Impedance_") {
return ""
}
tokens := strings.SplitN(filename, "_", 2)
res := tokens[0]
return res
}
func addFileToCache(key string, filename string, bs []byte) {
prefix := getCachePrefix(filename)
if prefix == "" {
return
}
path := fmt.Sprintf("%s/%s/%s", cacheDir, key, filename)
util.EnsureFileFolderExists(path)
util.WriteBytesToPath(bs, path)
}
func (c *ApiController) ActivateFile() {
_, ok := c.RequireSignedIn()
if !ok {
return
}
key := c.Input().Get("key")
filename := c.Input().Get("filename")
prefix := getCachePrefix(filename)
if prefix == "" {
c.ResponseOk(false)
return
}
path := fmt.Sprintf("%s/%s", cacheDir, key)
cacheMap[prefix] = path
fmt.Printf("%v\n", cacheMap)
if !util.FileExist(getAppPath(filename)) {
util.CopyFile(getAppPath(filename), getAppPath(prefix))
}
c.ResponseOk(true)
}
func (c *ApiController) GetActiveFile() {
prefix := c.Input().Get("prefix")
res := ""
if v, ok := cacheMap[prefix]; ok {
res = v
}
c.ResponseOk(res)
}