wide/file/files.go

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package file
import (
"encoding/json"
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"github.com/b3log/wide/conf"
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"github.com/b3log/wide/user"
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"github.com/b3log/wide/util"
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"github.com/golang/glog"
"io/ioutil"
"net/http"
"os"
"path/filepath"
"sort"
"strings"
)
func GetFiles(w http.ResponseWriter, r *http.Request) {
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data := map[string]interface{}{"succ": true}
defer util.RetJSON(w, r, data)
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session, _ := user.Session.Get(r, "wide-session")
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username := session.Values["username"].(string)
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userSrc := conf.Wide.GetUserWorkspace(username) + string(os.PathSeparator) + "src"
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root := FileNode{Name: "projects", Path: userSrc, IconSkin: "ico-ztree-dir ", Type: "d", FileNodes: []*FileNode{}}
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fileInfo, _ := os.Lstat(userSrc)
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walk(userSrc, fileInfo, &root)
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data["root"] = root
}
func GetFile(w http.ResponseWriter, r *http.Request) {
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data := map[string]interface{}{"succ": true}
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defer util.RetJSON(w, r, data)
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decoder := json.NewDecoder(r.Body)
var args map[string]interface{}
if err := decoder.Decode(&args); err != nil {
glog.Error(err)
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data["succ"] = false
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return
}
path := args["path"].(string)
buf, _ := ioutil.ReadFile(path)
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extension := filepath.Ext(path)
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// 通过文件扩展名判断是否是图片文件(图片在浏览器里新建 tab 打开)
if isImg(extension) {
data["mode"] = "img"
path2 := strings.Replace(path, "\\", "/", -1)
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idx := strings.Index(path2, "/data/user_workspaces")
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data["path"] = path2[idx:]
return
}
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isBinary := false
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// 判断是否是其他二进制文件
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for _, b := range buf {
if 0 == b { // 包含 0 字节就认为是二进制文件
isBinary = true
}
}
if isBinary {
// 是二进制文件的话前端编辑器不打开
data["succ"] = false
data["msg"] = "Can't open a binary file :("
} else {
data["content"] = string(buf)
data["mode"] = getEditorMode(extension)
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}
}
func SaveFile(w http.ResponseWriter, r *http.Request) {
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data := map[string]interface{}{"succ": true}
defer util.RetJSON(w, r, data)
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decoder := json.NewDecoder(r.Body)
var args map[string]interface{}
if err := decoder.Decode(&args); err != nil {
glog.Error(err)
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data["succ"] = false
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return
}
filePath := args["file"].(string)
fout, err := os.Create(filePath)
if nil != err {
glog.Error(err)
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data["succ"] = false
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return
}
code := args["code"].(string)
fout.WriteString(code)
if err := fout.Close(); nil != err {
glog.Error(err)
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data["succ"] = false
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return
}
}
func NewFile(w http.ResponseWriter, r *http.Request) {
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data := map[string]interface{}{"succ": true}
defer util.RetJSON(w, r, data)
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decoder := json.NewDecoder(r.Body)
var args map[string]interface{}
if err := decoder.Decode(&args); err != nil {
glog.Error(err)
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data["succ"] = false
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return
}
path := args["path"].(string)
fileType := args["fileType"].(string)
if !createFile(path, fileType) {
data["succ"] = false
}
}
func RemoveFile(w http.ResponseWriter, r *http.Request) {
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data := map[string]interface{}{"succ": true}
defer util.RetJSON(w, r, data)
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decoder := json.NewDecoder(r.Body)
var args map[string]interface{}
if err := decoder.Decode(&args); err != nil {
glog.Error(err)
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data["succ"] = false
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return
}
path := args["path"].(string)
if !removeFile(path) {
data["succ"] = false
}
}
type FileNode struct {
Name string `json:"name"`
Path string `json:"path"`
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IconSkin string `json:"iconSkin"` // 值的末尾应该有一个空格
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Type string `json:"type"`
FileNodes []*FileNode `json:"children"`
}
func walk(path string, info os.FileInfo, node *FileNode) {
files := listFiles(path)
for _, filename := range files {
fpath := filepath.Join(path, filename)
fio, _ := os.Lstat(fpath)
child := FileNode{Name: filename, Path: fpath, FileNodes: []*FileNode{}}
node.FileNodes = append(node.FileNodes, &child)
if nil == fio {
glog.Warningf("Path [%s] is nil", fpath)
continue
}
if fio.IsDir() {
child.Type = "d"
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child.IconSkin = "ico-ztree-dir "
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walk(fpath, fio, &child)
} else {
child.Type = "f"
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ext := filepath.Ext(fpath)
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child.IconSkin = getIconSkin(ext)
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}
}
return
}
func listFiles(dirname string) []string {
f, _ := os.Open(dirname)
names, _ := f.Readdirnames(-1)
f.Close()
sort.Strings(names)
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dirs := []string{}
files := []string{}
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// 排序:目录靠前,文件靠后
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for _, name := range names {
fio, _ := os.Lstat(filepath.Join(dirname, name))
if fio.IsDir() {
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// 排除 .git 目录
if ".git" == fio.Name() {
continue
}
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dirs = append(dirs, name)
} else {
files = append(files, name)
}
}
return append(dirs, files...)
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}
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func getIconSkin(filenameExtension string) string {
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if "" == filenameExtension || ".exe" == filenameExtension {
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return "ico-ztree-other "
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}
switch filenameExtension {
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case ".gitignore":
return "ico-ztree-other "
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case ".json":
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return "ico-ztree-js "
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case ".txt":
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return "ico-ztree-text "
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case ".properties":
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return "ico-ztree-pro "
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case ".htm":
return "ico-ztree-html "
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default:
if isImg(filenameExtension) {
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return "ico-ztree-img "
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}
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return "ico-ztree-" + filenameExtension[1:] + " "
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}
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return ""
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}
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func getEditorMode(filenameExtension string) string {
switch filenameExtension {
case ".go":
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return "text/x-go"
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case ".html":
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return "text/html"
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case ".md":
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return "text/x-markdown"
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case ".js":
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return "text/javascript"
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case ".json":
return "application/json"
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case ".css":
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return "text/css"
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case ".xml":
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return "application/xml"
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case ".sh":
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return "text/x-sh"
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case ".sql":
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return "text/x-sql"
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default:
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return "text/plain"
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}
}
func createFile(path, fileType string) bool {
switch fileType {
case "f":
file, err := os.OpenFile(path, os.O_CREATE, 0664)
if nil != err {
glog.Info(err)
return false
}
defer file.Close()
glog.Infof("Created file [%s]", path)
return true
case "d":
err := os.Mkdir(path, 0775)
if nil != err {
glog.Info(err)
}
glog.Infof("Created directory [%s]", path)
return true
default:
glog.Infof("Unsupported file type [%s]", fileType)
return false
}
}
func removeFile(path string) bool {
if err := os.RemoveAll(path); nil != err {
glog.Errorf("Removes [%s] failed: [%s]", path, err.Error())
return false
}
glog.Infof("Removed [%s]", path)
return true
}
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func isImg(extension string) bool {
ext := strings.ToLower(extension)
switch ext {
case ".jpg", ".jpeg", ".bmp", ".gif", ".png", ".svg", ".ico":
return true
default:
return false
}
}