520 lines
11 KiB
Go
520 lines
11 KiB
Go
// File tree manipulations.
|
||
package file
|
||
|
||
import (
|
||
"encoding/json"
|
||
"io/ioutil"
|
||
"net/http"
|
||
"os"
|
||
"path/filepath"
|
||
"runtime"
|
||
"sort"
|
||
"strings"
|
||
|
||
"github.com/b3log/wide/conf"
|
||
"github.com/b3log/wide/event"
|
||
"github.com/b3log/wide/session"
|
||
"github.com/b3log/wide/util"
|
||
"github.com/golang/glog"
|
||
)
|
||
|
||
// File node, used to construct the file tree.
|
||
type FileNode struct {
|
||
Name string `json:"name"`
|
||
Path string `json:"path"`
|
||
IconSkin string `json:"iconSkin"` // Value should be end with a space
|
||
Type string `json:"type"` // "f": file，"d": directory
|
||
Mode string `json:"mode"`
|
||
FileNodes []*FileNode `json:"children"`
|
||
}
|
||
|
||
// Source code snippet, used to as the result of "Find Usages", "Search".
|
||
type Snippet struct {
|
||
Path string `json:"path"` // file path
|
||
Line int `json:"line"` // line number
|
||
Ch int `json:"ch"` // column number
|
||
Contents []string `json:"contents"` // lines nearby
|
||
}
|
||
|
||
// GetFiles handles request of constructing user workspace file tree.
|
||
//
|
||
// The Go API source code package ($GOROOT/src/pkg) also as a child node,
|
||
// so that users can easily view the Go API source code.
|
||
func GetFiles(w http.ResponseWriter, r *http.Request) {
|
||
data := map[string]interface{}{"succ": true}
|
||
defer util.RetJSON(w, r, data)
|
||
|
||
session, _ := session.HTTPSession.Get(r, "wide-session")
|
||
|
||
username := session.Values["username"].(string)
|
||
userWorkspace := conf.Wide.GetUserWorkspace(username)
|
||
workspaces := filepath.SplitList(userWorkspace)
|
||
|
||
root := FileNode{Name: "root", Path: "", IconSkin: "ico-ztree-dir ", Type: "d", FileNodes: []*FileNode{}}
|
||
|
||
// workspace node process
|
||
for _, workspace := range workspaces {
|
||
workspacePath := workspace + conf.PathSeparator + "src"
|
||
|
||
workspaceNode := FileNode{Name: workspace[strings.LastIndex(workspace, conf.PathSeparator)+1:] + " (" +
|
||
workspace + ")",
|
||
Path: workspacePath, IconSkin: "ico-ztree-dir ", Type: "d", FileNodes: []*FileNode{}}
|
||
|
||
walk(workspacePath, &workspaceNode)
|
||
|
||
// add workspace node
|
||
root.FileNodes = append(root.FileNodes, &workspaceNode)
|
||
}
|
||
|
||
// construct Go API node
|
||
apiPath := runtime.GOROOT() + conf.PathSeparator + "src" + conf.PathSeparator + "pkg"
|
||
apiNode := FileNode{Name: "Go API", Path: apiPath, FileNodes: []*FileNode{}}
|
||
|
||
goapiBuildOKSignal := make(chan bool)
|
||
go func() {
|
||
apiNode.Type = "d"
|
||
// TOOD: Go API use a special style
|
||
apiNode.IconSkin = "ico-ztree-dir "
|
||
|
||
walk(apiPath, &apiNode)
|
||
|
||
// go-ahead
|
||
close(goapiBuildOKSignal)
|
||
}()
|
||
|
||
// waiting
|
||
<-goapiBuildOKSignal
|
||
|
||
// add Go API node
|
||
root.FileNodes = append(root.FileNodes, &apiNode)
|
||
|
||
data["root"] = root
|
||
}
|
||
|
||
// GetFile handles request of opening file by editor.
|
||
func GetFile(w http.ResponseWriter, r *http.Request) {
|
||
data := map[string]interface{}{"succ": true}
|
||
defer util.RetJSON(w, r, data)
|
||
|
||
var args map[string]interface{}
|
||
|
||
if err := json.NewDecoder(r.Body).Decode(&args); err != nil {
|
||
glog.Error(err)
|
||
data["succ"] = false
|
||
|
||
return
|
||
}
|
||
|
||
path := args["path"].(string)
|
||
buf, _ := ioutil.ReadFile(path)
|
||
|
||
extension := filepath.Ext(path)
|
||
|
||
if isImg(extension) {
|
||
// image file will be open in a browser tab
|
||
|
||
data["mode"] = "img"
|
||
|
||
path2 := strings.Replace(path, "\\", "/", -1)
|
||
idx := strings.Index(path2, "/data/user_workspaces")
|
||
data["path"] = path2[idx:]
|
||
|
||
return
|
||
}
|
||
|
||
isBinary := false
|
||
// determine whether it is a binary file
|
||
for _, b := range buf {
|
||
if 0 == b {
|
||
isBinary = true
|
||
}
|
||
}
|
||
|
||
if isBinary {
|
||
data["succ"] = false
|
||
data["msg"] = "Can't open a binary file :("
|
||
} else {
|
||
data["content"] = string(buf)
|
||
data["mode"] = getEditorMode(extension)
|
||
data["path"] = path
|
||
}
|
||
}
|
||
|
||
// SaveFile handles request of saving file.
|
||
func SaveFile(w http.ResponseWriter, r *http.Request) {
|
||
data := map[string]interface{}{"succ": true}
|
||
defer util.RetJSON(w, r, data)
|
||
|
||
var args map[string]interface{}
|
||
|
||
if err := json.NewDecoder(r.Body).Decode(&args); err != nil {
|
||
glog.Error(err)
|
||
data["succ"] = false
|
||
|
||
return
|
||
}
|
||
|
||
filePath := args["file"].(string)
|
||
sid := args["sid"].(string)
|
||
|
||
fout, err := os.Create(filePath)
|
||
|
||
if nil != err {
|
||
glog.Error(err)
|
||
data["succ"] = false
|
||
|
||
return
|
||
}
|
||
|
||
code := args["code"].(string)
|
||
|
||
fout.WriteString(code)
|
||
|
||
if err := fout.Close(); nil != err {
|
||
glog.Error(err)
|
||
data["succ"] = false
|
||
|
||
wSession := session.WideSessions.Get(sid)
|
||
wSession.EventQueue.Queue <- &event.Event{Code: event.EvtCodeServerInternalError, Sid: sid,
|
||
Data: "can't save file " + filePath}
|
||
|
||
return
|
||
}
|
||
}
|
||
|
||
// NewFile handles request of creating file or directory.
|
||
func NewFile(w http.ResponseWriter, r *http.Request) {
|
||
data := map[string]interface{}{"succ": true}
|
||
defer util.RetJSON(w, r, data)
|
||
|
||
var args map[string]interface{}
|
||
|
||
if err := json.NewDecoder(r.Body).Decode(&args); err != nil {
|
||
glog.Error(err)
|
||
data["succ"] = false
|
||
|
||
return
|
||
}
|
||
|
||
path := args["path"].(string)
|
||
fileType := args["fileType"].(string)
|
||
sid := args["sid"].(string)
|
||
|
||
wSession := session.WideSessions.Get(sid)
|
||
|
||
if !createFile(path, fileType) {
|
||
data["succ"] = false
|
||
|
||
wSession.EventQueue.Queue <- &event.Event{Code: event.EvtCodeServerInternalError, Sid: sid,
|
||
Data: "can't create file " + path}
|
||
|
||
return
|
||
}
|
||
|
||
if "f" == fileType {
|
||
extension := filepath.Ext(path)
|
||
data["mode"] = getEditorMode(extension)
|
||
}
|
||
}
|
||
|
||
// RemoveFile handles request of removing file or directory.
|
||
func RemoveFile(w http.ResponseWriter, r *http.Request) {
|
||
data := map[string]interface{}{"succ": true}
|
||
defer util.RetJSON(w, r, data)
|
||
|
||
var args map[string]interface{}
|
||
|
||
if err := json.NewDecoder(r.Body).Decode(&args); err != nil {
|
||
glog.Error(err)
|
||
data["succ"] = false
|
||
|
||
return
|
||
}
|
||
|
||
path := args["path"].(string)
|
||
sid := args["sid"].(string)
|
||
|
||
wSession := session.WideSessions.Get(sid)
|
||
|
||
if !removeFile(path) {
|
||
data["succ"] = false
|
||
|
||
wSession.EventQueue.Queue <- &event.Event{Code: event.EvtCodeServerInternalError, Sid: sid,
|
||
Data: "can't remove file " + path}
|
||
}
|
||
}
|
||
|
||
// SearchText handles request of searching files under the specified directory with the specified keyword.
|
||
func SearchText(w http.ResponseWriter, r *http.Request) {
|
||
data := map[string]interface{}{"succ": true}
|
||
defer util.RetJSON(w, r, data)
|
||
|
||
var args map[string]interface{}
|
||
|
||
if err := json.NewDecoder(r.Body).Decode(&args); err != nil {
|
||
glog.Error(err)
|
||
data["succ"] = false
|
||
|
||
return
|
||
}
|
||
|
||
dir := args["dir"].(string)
|
||
extension := args["extension"].(string)
|
||
text := args["text"].(string)
|
||
|
||
founds := search(dir, extension, text, []*Snippet{})
|
||
|
||
data["founds"] = founds
|
||
}
|
||
|
||
// walk traverses the specified path to build a file tree.
|
||
func walk(path string, 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"
|
||
child.IconSkin = "ico-ztree-dir "
|
||
|
||
walk(fpath, &child)
|
||
} else {
|
||
child.Type = "f"
|
||
ext := filepath.Ext(fpath)
|
||
|
||
child.IconSkin = getIconSkin(ext)
|
||
child.Mode = getEditorMode(ext)
|
||
}
|
||
}
|
||
|
||
return
|
||
}
|
||
|
||
// listFiles lists names of files under the specified dirname.
|
||
func listFiles(dirname string) []string {
|
||
f, _ := os.Open(dirname)
|
||
|
||
names, _ := f.Readdirnames(-1)
|
||
f.Close()
|
||
|
||
sort.Strings(names)
|
||
|
||
dirs := []string{}
|
||
files := []string{}
|
||
|
||
// sort: directories in front of files
|
||
for _, name := range names {
|
||
fio, _ := os.Lstat(filepath.Join(dirname, name))
|
||
|
||
if fio.IsDir() {
|
||
// exclude the .git direcitory
|
||
if ".git" == fio.Name() {
|
||
continue
|
||
}
|
||
|
||
dirs = append(dirs, name)
|
||
} else {
|
||
files = append(files, name)
|
||
}
|
||
}
|
||
|
||
return append(dirs, files...)
|
||
}
|
||
|
||
// getIconSkin gets CSS class name of icon with the specified filename extension.
|
||
//
|
||
// Refers to the zTree document for CSS class names.
|
||
func getIconSkin(filenameExtension string) string {
|
||
if isImg(filenameExtension) {
|
||
return "ico-ztree-img "
|
||
}
|
||
|
||
switch filenameExtension {
|
||
case ".html", ".htm":
|
||
return "ico-ztree-html "
|
||
case ".go":
|
||
return "ico-ztree-go "
|
||
case ".css":
|
||
return "ico-ztree-css "
|
||
case ".txt":
|
||
return "ico-ztree-text "
|
||
case ".sql":
|
||
return "ico-ztree-sql "
|
||
case ".properties":
|
||
return "ico-ztree-pro "
|
||
case ".md":
|
||
return "ico-ztree-md "
|
||
case ".js", ".json":
|
||
return "ico-ztree-js "
|
||
case ".xml":
|
||
return "ico-ztree-xml "
|
||
default:
|
||
return "ico-ztree-other "
|
||
}
|
||
}
|
||
|
||
// getEditorMode gets editor mode with the specified filename extension.
|
||
//
|
||
// Refers to the CodeMirror document for modes.
|
||
func getEditorMode(filenameExtension string) string {
|
||
switch filenameExtension {
|
||
case ".go":
|
||
return "text/x-go"
|
||
case ".html":
|
||
return "text/html"
|
||
case ".md":
|
||
return "text/x-markdown"
|
||
case ".js":
|
||
return "text/javascript"
|
||
case ".json":
|
||
return "application/json"
|
||
case ".css":
|
||
return "text/css"
|
||
case ".xml":
|
||
return "application/xml"
|
||
case ".sh":
|
||
return "text/x-sh"
|
||
case ".sql":
|
||
return "text/x-sql"
|
||
default:
|
||
return "text/plain"
|
||
}
|
||
}
|
||
|
||
// createFile creates file on the specified path.
|
||
//
|
||
// fileType:
|
||
//
|
||
// "f": file
|
||
// "d": directory
|
||
func createFile(path, fileType string) bool {
|
||
switch fileType {
|
||
case "f":
|
||
file, err := os.OpenFile(path, os.O_CREATE, 0664)
|
||
if nil != err {
|
||
glog.Error(err)
|
||
|
||
return false
|
||
}
|
||
|
||
defer file.Close()
|
||
|
||
glog.V(5).Infof("Created file [%s]", path)
|
||
|
||
return true
|
||
case "d":
|
||
err := os.Mkdir(path, 0775)
|
||
|
||
if nil != err {
|
||
glog.Error(err)
|
||
|
||
return false
|
||
}
|
||
|
||
glog.V(5).Infof("Created directory [%s]", path)
|
||
|
||
return true
|
||
default:
|
||
glog.Errorf("Unsupported file type [%s]", fileType)
|
||
|
||
return false
|
||
}
|
||
}
|
||
|
||
// removeFile removes file on the specified path.
|
||
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
|
||
}
|
||
|
||
// search finds file under the specified dir and its sub-directories with the specified text, likes the command grep/findstr.
|
||
func search(dir, extension, text string, snippets []*Snippet) []*Snippet {
|
||
if !strings.HasSuffix(dir, conf.PathSeparator) {
|
||
dir += conf.PathSeparator
|
||
}
|
||
|
||
f, _ := os.Open(dir)
|
||
fileInfos, err := f.Readdir(-1)
|
||
f.Close()
|
||
|
||
if nil != err {
|
||
glog.Errorf("Read dir [%s] failed: [%s]", dir, err.Error())
|
||
|
||
return snippets
|
||
}
|
||
|
||
for _, fileInfo := range fileInfos {
|
||
path := dir + fileInfo.Name()
|
||
|
||
if fileInfo.IsDir() {
|
||
// enter the directory recursively
|
||
snippets = search(path, extension, text, snippets)
|
||
} else if strings.HasSuffix(path, extension) {
|
||
// grep in file
|
||
ss := searchInFile(path, text)
|
||
|
||
snippets = append(snippets, ss...)
|
||
}
|
||
}
|
||
|
||
return snippets
|
||
}
|
||
|
||
// searchInFile finds file with the specified path and text.
|
||
func searchInFile(path string, text string) []*Snippet {
|
||
ret := []*Snippet{}
|
||
|
||
bytes, err := ioutil.ReadFile(path)
|
||
if nil != err {
|
||
glog.Errorf("Read file [%s] failed: [%s]", path, err.Error())
|
||
|
||
return ret
|
||
}
|
||
|
||
content := string(bytes)
|
||
lines := strings.Split(content, "\n")
|
||
|
||
for idx, line := range lines {
|
||
ch := strings.Index(line, text)
|
||
|
||
if -1 != ch {
|
||
snippet := &Snippet{Path: path, Line: idx + 1, Ch: ch + 1, Contents: []string{line}}
|
||
|
||
ret = append(ret, snippet)
|
||
}
|
||
}
|
||
|
||
return ret
|
||
}
|
||
|
||
// isImg determines whether the specified extension is a image.
|
||
func isImg(extension string) bool {
|
||
ext := strings.ToLower(extension)
|
||
|
||
switch ext {
|
||
case ".jpg", ".jpeg", ".bmp", ".gif", ".png", ".svg", ".ico":
|
||
return true
|
||
default:
|
||
return false
|
||
}
|
||
}
|