// DecompressHandler handles request of decompressing zip/tar.gz.
func DecompressHandler(w http.ResponseWriter, r *http.Request) {
result := util.NewResult()
defer util.RetResult(w, r, result)
var args map[string]interface{}
if err := json.NewDecoder(r.Body).Decode(&args); err != nil {
logger.Error(err)
result.Succ = false
return
}
path := args["path"].(string)
// base := filepath.Base(path)
dir := filepath.Dir(path)
if !util.File.IsExist(path) {
result.Succ = false
result.Msg = "Can't find file [" + path + "] to descompress"
return
}
err := util.Zip.Unzip(path, dir)
if nil != err {
logger.Error(err)
result.Succ = false
return
}
}
// LoginHandler handles request of user login.
func LoginHandler(w http.ResponseWriter, r *http.Request) {
if "GET" == r.Method {
// show the login page
model := map[string]interface{}{"conf": conf.Wide, "i18n": i18n.GetAll(conf.Wide.Locale),
"locale": conf.Wide.Locale, "ver": conf.WideVersion, "year": time.Now().Year()}
t, err := template.ParseFiles("views/login.html")
if nil != err {
logger.Error(err)
http.Error(w, err.Error(), 500)
return
}
t.Execute(w, model)
return
}
// non-GET request as login request
result := util.NewResult()
defer util.RetResult(w, r, result)
args := struct {
Username string
Password string
}{}
args.Username = r.FormValue("username")
args.Password = r.FormValue("password")
result.Succ = false
for _, user := range conf.Users {
if user.Name == args.Username && user.Password == conf.Salt(args.Password, user.Salt) {
result.Succ = true
break
}
}
if !result.Succ {
return
}
// create a HTTP session
httpSession, _ := HTTPSession.Get(r, "wide-session")
httpSession.Values["username"] = args.Username
httpSession.Values["id"] = strconv.Itoa(rand.Int())
httpSession.Options.MaxAge = conf.Wide.HTTPSessionMaxAge
if "" != conf.Wide.Context {
httpSession.Options.Path = conf.Wide.Context
}
httpSession.Save(r, w)
logger.Debugf("Created a HTTP session [%s] for user [%s]", httpSession.Values["id"].(string), args.Username)
}
// UploadHandler handles request of file upload.
func UploadHandler(w http.ResponseWriter, r *http.Request) {
result := util.NewResult()
defer util.RetResult(w, r, result)
q := r.URL.Query()
dir := q["path"][0]
result.Data = handleUploads(r, dir)
}
// LogoutHandler handles request of user logout (exit).
func LogoutHandler(w http.ResponseWriter, r *http.Request) {
result := util.NewResult()
defer util.RetResult(w, r, result)
httpSession, _ := HTTPSession.Get(r, "wide-session")
httpSession.Options.MaxAge = -1
httpSession.Save(r, w)
}
// SaveFileHandler handles request of saving file.
func SaveFileHandler(w http.ResponseWriter, r *http.Request) {
httpSession, _ := session.HTTPSession.Get(r, "wide-session")
if httpSession.IsNew {
http.Error(w, "Forbidden", http.StatusForbidden)
return
}
username := httpSession.Values["username"].(string)
result := util.NewResult()
defer util.RetResult(w, r, result)
var args map[string]interface{}
if err := json.NewDecoder(r.Body).Decode(&args); err != nil {
logger.Error(err)
result.Succ = false
return
}
filePath := args["file"].(string)
sid := args["sid"].(string)
if util.Go.IsAPI(filePath) || !session.CanAccess(username, filePath) {
http.Error(w, "Forbidden", http.StatusForbidden)
return
}
fout, err := os.Create(filePath)
if nil != err {
logger.Error(err)
result.Succ = false
return
}
code := args["code"].(string)
fout.WriteString(code)
if err := fout.Close(); nil != err {
logger.Error(err)
result.Succ = false
wSession := session.WideSessions.Get(sid)
wSession.EventQueue.Queue <- &event.Event{Code: event.EvtCodeServerInternalError, Sid: sid,
Data: "can't save file " + filePath}
return
}
}
// FindHandler handles request of find files under the specified directory with the specified filename pattern.
func FindHandler(w http.ResponseWriter, r *http.Request) {
httpSession, _ := session.HTTPSession.Get(r, "wide-session")
if httpSession.IsNew {
http.Error(w, "Forbidden", http.StatusForbidden)
return
}
username := httpSession.Values["username"].(string)
result := util.NewResult()
defer util.RetResult(w, r, result)
var args map[string]interface{}
if err := json.NewDecoder(r.Body).Decode(&args); err != nil {
logger.Error(err)
result.Succ = false
return
}
path := args["path"].(string) // path of selected file in file tree
if !util.Go.IsAPI(path) && !session.CanAccess(username, path) {
http.Error(w, "Forbidden", http.StatusForbidden)
return
}
name := args["name"].(string)
userWorkspace := conf.GetUserWorkspace(username)
workspaces := filepath.SplitList(userWorkspace)
if "" != path && !util.File.IsDir(path) {
path = filepath.Dir(path)
}
founds := foundPaths{}
for _, workspace := range workspaces {
rs := find(workspace+conf.PathSeparator+"src", name, []*string{})
for _, r := range rs {
substr := util.Str.LCS(path, *r)
founds = append(founds, &foundPath{Path: filepath.ToSlash(*r), score: len(substr)})
}
}
sort.Sort(founds)
result.Data = founds
}
// RenameFileHandler handles request of renaming file or directory.
func RenameFileHandler(w http.ResponseWriter, r *http.Request) {
httpSession, _ := session.HTTPSession.Get(r, "wide-session")
if httpSession.IsNew {
http.Error(w, "Forbidden", http.StatusForbidden)
return
}
username := httpSession.Values["username"].(string)
result := util.NewResult()
defer util.RetResult(w, r, result)
var args map[string]interface{}
if err := json.NewDecoder(r.Body).Decode(&args); err != nil {
logger.Error(err)
result.Succ = false
return
}
oldPath := args["oldPath"].(string)
if util.Go.IsAPI(oldPath) ||
!session.CanAccess(username, oldPath) {
http.Error(w, "Forbidden", http.StatusForbidden)
return
}
newPath := args["newPath"].(string)
if util.Go.IsAPI(newPath) || !session.CanAccess(username, newPath) {
http.Error(w, "Forbidden", http.StatusForbidden)
return
}
sid := args["sid"].(string)
wSession := session.WideSessions.Get(sid)
if !renameFile(oldPath, newPath) {
result.Succ = false
wSession.EventQueue.Queue <- &event.Event{Code: event.EvtCodeServerInternalError, Sid: sid,
Data: "can't rename file " + oldPath}
return
}
logger.Debugf("Renamed a file [%s] to [%s] by user [%s]", oldPath, newPath, wSession.Username)
}
// NewFileHandler handles request of creating file or directory.
func NewFileHandler(w http.ResponseWriter, r *http.Request) {
httpSession, _ := session.HTTPSession.Get(r, "wide-session")
if httpSession.IsNew {
http.Error(w, "Forbidden", http.StatusForbidden)
return
}
username := httpSession.Values["username"].(string)
result := util.NewResult()
defer util.RetResult(w, r, result)
var args map[string]interface{}
if err := json.NewDecoder(r.Body).Decode(&args); err != nil {
logger.Error(err)
result.Succ = false
return
}
path := args["path"].(string)
if util.Go.IsAPI(path) || !session.CanAccess(username, path) {
http.Error(w, "Forbidden", http.StatusForbidden)
return
}
fileType := args["fileType"].(string)
sid := args["sid"].(string)
wSession := session.WideSessions.Get(sid)
if !createFile(path, fileType) {
result.Succ = false
wSession.EventQueue.Queue <- &event.Event{Code: event.EvtCodeServerInternalError, Sid: sid,
Data: "can't create file " + path}
return
}
if "f" == fileType {
logger.Debugf("Created a file [%s] by user [%s]", path, wSession.Username)
} else {
logger.Debugf("Created a dir [%s] by user [%s]", path, wSession.Username)
}
}
// CreateZipHandler handles request of creating zip.
func CreateZipHandler(w http.ResponseWriter, r *http.Request) {
data := util.NewResult()
defer util.RetResult(w, r, data)
var args map[string]interface{}
if err := json.NewDecoder(r.Body).Decode(&args); err != nil {
logger.Error(err)
data.Succ = false
return
}
path := args["path"].(string)
var name string
base := filepath.Base(path)
if nil != args["name"] {
name = args["name"].(string)
} else {
name = base
}
dir := filepath.Dir(path)
if !util.File.IsExist(path) {
data.Succ = false
data.Msg = "Can't find file [" + path + "]"
return
}
zipPath := filepath.Join(dir, name)
zipFile, err := util.Zip.Create(zipPath + ".zip")
if nil != err {
logger.Error(err)
data.Succ = false
return
}
defer zipFile.Close()
if util.File.IsDir(path) {
zipFile.AddDirectory(base, path)
} else {
zipFile.AddEntry(base, path)
}
data.Data = zipPath
}
// SearchTextHandler handles request of searching files under the specified directory with the specified keyword.
func SearchTextHandler(w http.ResponseWriter, r *http.Request) {
httpSession, _ := session.HTTPSession.Get(r, "wide-session")
if httpSession.IsNew {
http.Error(w, "Forbidden", http.StatusForbidden)
return
}
result := util.NewResult()
defer util.RetResult(w, r, result)
var args map[string]interface{}
if err := json.NewDecoder(r.Body).Decode(&args); err != nil {
logger.Error(err)
result.Succ = false
return
}
sid := args["sid"].(string)
wSession := session.WideSessions.Get(sid)
if nil == wSession {
result.Succ = false
return
}
// XXX: just one directory
dir := args["dir"].(string)
if "" == dir {
userWorkspace := conf.GetUserWorkspace(wSession.Username)
workspaces := filepath.SplitList(userWorkspace)
dir = workspaces[0]
}
extension := args["extension"].(string)
text := args["text"].(string)
founds := []*Snippet{}
if util.File.IsDir(dir) {
founds = search(dir, extension, text, []*Snippet{})
} else {
founds = searchInFile(dir, text)
}
result.Data = founds
}
// BuildHandler handles request of Playground building.
func BuildHandler(w http.ResponseWriter, r *http.Request) {
result := util.NewResult()
defer util.RetResult(w, r, result)
httpSession, _ := session.HTTPSession.Get(r, "wide-session")
if httpSession.IsNew {
http.Error(w, "Forbidden", http.StatusForbidden)
return
}
var args map[string]interface{}
if err := json.NewDecoder(r.Body).Decode(&args); err != nil {
logger.Error(err)
result.Succ = false
return
}
fileName := args["fileName"].(string)
filePath := filepath.Clean(conf.Wide.Playground + "/" + fileName)
suffix := ""
if util.OS.IsWindows() {
suffix = ".exe"
}
data := map[string]interface{}{}
executable := filepath.Clean(conf.Wide.Playground + "/" + strings.Replace(fileName, ".go", suffix, -1))
cmd := exec.Command("go", "build", "-o", executable, filePath)
out, err := cmd.CombinedOutput()
data["output"] = template.HTML(string(out))
if nil != err {
result.Succ = false
return
}
data["executable"] = executable
result.Data = data
}
// ShortURLHandler handles request of short URL.
func ShortURLHandler(w http.ResponseWriter, r *http.Request) {
result := util.NewResult()
defer util.RetResult(w, r, result)
session, _ := session.HTTPSession.Get(r, "wide-session")
if session.IsNew {
http.Error(w, "Forbidden", http.StatusForbidden)
return
}
var args map[string]interface{}
if err := json.NewDecoder(r.Body).Decode(&args); err != nil {
logger.Error(err)
result.Succ = false
return
}
url := args["url"].(string)
resp, _ := http.Post("http://dwz.cn/create.php", "application/x-www-form-urlencoded",
strings.NewReader("url="+url))
var response map[string]interface{}
if err := json.NewDecoder(resp.Body).Decode(&response); err != nil {
logger.Error(err)
result.Succ = false
return
}
shortURL := url
if 0 == response["status"].(float64) {
shortURL = response["tinyurl"].(string)
}
result.Data = shortURL
}
// SaveContentHandler handles request of session content string.
func SaveContentHandler(w http.ResponseWriter, r *http.Request) {
result := util.NewResult()
defer util.RetResult(w, r, result)
args := struct {
Sid string
*conf.LatestSessionContent
}{}
if err := json.NewDecoder(r.Body).Decode(&args); err != nil {
logger.Error(err)
result.Succ = false
return
}
wSession := WideSessions.Get(args.Sid)
if nil == wSession {
result.Succ = false
return
}
wSession.Content = args.LatestSessionContent
for _, user := range conf.Users {
if user.Name == wSession.Username {
// update the variable in-memory, session.FixedTimeSave() function will persist it periodically
user.LatestSessionContent = wSession.Content
user.Lived = time.Now().UnixNano()
wSession.Refresh()
return
}
}
}
// StopHandler handles request of stoping a running process.
func StopHandler(w http.ResponseWriter, r *http.Request) {
result := util.NewResult()
defer util.RetResult(w, r, result)
var args map[string]interface{}
if err := json.NewDecoder(r.Body).Decode(&args); err != nil {
logger.Error(err)
result.Succ = false
return
}
sid := args["sid"].(string)
pid := int(args["pid"].(float64))
wSession := session.WideSessions.Get(sid)
if nil == wSession {
result.Succ = false
return
}
output.Processes.Kill(wSession, pid)
}
// RunHandler handles request of executing a binary file.
func RunHandler(w http.ResponseWriter, r *http.Request) {
result := util.NewResult()
defer util.RetResult(w, r, result)
var args map[string]interface{}
if err := json.NewDecoder(r.Body).Decode(&args); err != nil {
logger.Error(err)
result.Succ = false
}
sid := args["sid"].(string)
wSession := session.WideSessions.Get(sid)
if nil == wSession {
result.Succ = false
}
filePath := args["executable"].(string)
cmd := exec.Command(filePath)
if conf.Docker {
output.SetNamespace(cmd)
}
stdout, err := cmd.StdoutPipe()
if nil != err {
logger.Error(err)
result.Succ = false
}
stderr, err := cmd.StderrPipe()
if nil != err {
logger.Error(err)
result.Succ = false
}
outReader := bufio.NewReader(stdout)
errReader := bufio.NewReader(stderr)
if err := cmd.Start(); nil != err {
logger.Error(err)
result.Succ = false
}
wsChannel := session.PlaygroundWS[sid]
channelRet := map[string]interface{}{}
if !result.Succ {
if nil != wsChannel {
channelRet["cmd"] = "run-done"
channelRet["output"] = ""
err := wsChannel.WriteJSON(&channelRet)
if nil != err {
logger.Warn(err)
return
}
wsChannel.Refresh()
}
return
}
channelRet["pid"] = cmd.Process.Pid
// add the process to user's process set
output.Processes.Add(wSession, cmd.Process)
go func(runningId int) {
defer util.Recover()
defer cmd.Wait()
logger.Debugf("User [%s, %s] is running [id=%d, file=%s]", wSession.Username, sid, runningId, filePath)
// push once for front-end to get the 'run' state and pid
if nil != wsChannel {
channelRet["cmd"] = "run"
channelRet["output"] = ""
err := wsChannel.WriteJSON(&channelRet)
if nil != err {
logger.Warn(err)
return
}
wsChannel.Refresh()
}
go func() {
defer util.Recover()
buf := outputBuf{}
for {
wsChannel := session.PlaygroundWS[sid]
if nil == wsChannel {
break
}
r, _, err := outReader.ReadRune()
if nil != err {
// remove the exited process from user process set
output.Processes.Remove(wSession, cmd.Process)
logger.Debugf("User [%s, %s] 's running [id=%d, file=%s] has done [stdout %v], ", wSession.Username, sid, runningId, filePath, err)
channelRet["cmd"] = "run-done"
channelRet["output"] = buf.content
err := wsChannel.WriteJSON(&channelRet)
if nil != err {
logger.Warn(err)
break
}
wsChannel.Refresh()
break
}
oneRuneStr := string(r)
buf.content += oneRuneStr
now := time.Now().UnixNano() / int64(time.Millisecond)
if 0 == buf.millisecond {
buf.millisecond = now
}
if now-outputTimeout >= buf.millisecond || len(buf.content) > outputBufMax || oneRuneStr == "\n" {
channelRet["cmd"] = "run"
channelRet["output"] = buf.content
buf = outputBuf{} // a new buffer
err = wsChannel.WriteJSON(&channelRet)
if nil != err {
logger.Warn(err)
break
}
wsChannel.Refresh()
}
}
}()
buf := outputBuf{}
for {
r, _, err := errReader.ReadRune()
wsChannel := session.PlaygroundWS[sid]
if nil != err || nil == wsChannel {
break
}
oneRuneStr := string(r)
buf.content += oneRuneStr
now := time.Now().UnixNano() / int64(time.Millisecond)
if 0 == buf.millisecond {
buf.millisecond = now
}
if now-outputTimeout >= buf.millisecond || len(buf.content) > outputBufMax || oneRuneStr == "\n" {
channelRet["cmd"] = "run"
channelRet["output"] = buf.content
buf = outputBuf{} // a new buffer
err = wsChannel.WriteJSON(&channelRet)
if nil != err {
logger.Warn(err)
break
}
wsChannel.Refresh()
}
}
}(rand.Int())
}
// GoVetHandler handles request of go vet.
func GoVetHandler(w http.ResponseWriter, r *http.Request) {
result := util.NewResult()
defer util.RetResult(w, r, result)
httpSession, _ := session.HTTPSession.Get(r, "wide-session")
if httpSession.IsNew {
http.Error(w, "Forbidden", http.StatusForbidden)
return
}
username := httpSession.Values["username"].(string)
locale := conf.GetUser(username).Locale
var args map[string]interface{}
if err := json.NewDecoder(r.Body).Decode(&args); err != nil {
logger.Error(err)
result.Succ = false
return
}
sid := args["sid"].(string)
filePath := args["file"].(string)
curDir := filepath.Dir(filePath)
cmd := exec.Command("go", "vet", ".")
cmd.Dir = curDir
setCmdEnv(cmd, username)
stdout, err := cmd.StdoutPipe()
if nil != err {
logger.Error(err)
result.Succ = false
return
}
stderr, err := cmd.StderrPipe()
if nil != err {
logger.Error(err)
result.Succ = false
return
}
if !result.Succ {
return
}
channelRet := map[string]interface{}{}
if nil != session.OutputWS[sid] {
// display "START [go vet]" in front-end browser
channelRet["output"] = "<span class='start-vet'>" + i18n.Get(locale, "start-vet").(string) + "</span>\n"
channelRet["cmd"] = "start-vet"
wsChannel := session.OutputWS[sid]
err := wsChannel.WriteJSON(&channelRet)
if nil != err {
logger.Warn(err)
return
}
wsChannel.Refresh()
}
reader := bufio.NewReader(io.MultiReader(stdout, stderr))
if err := cmd.Start(); nil != err {
logger.Error(err)
result.Succ = false
return
}
go func(runningId int) {
defer util.Recover()
logger.Debugf("User [%s, %s] is running [go vet] [runningId=%d]", username, sid, runningId)
channelRet := map[string]interface{}{}
channelRet["cmd"] = "go vet"
// read all
buf, _ := ioutil.ReadAll(reader)
// waiting for go vet finished
cmd.Wait()
if !cmd.ProcessState.Success() {
logger.Debugf("User [%s, %s] 's running [go vet] [runningId=%d] has done (with error)", username, sid, runningId)
channelRet["output"] = "<span class='vet-error'>" + i18n.Get(locale, "vet-error").(string) + "</span>\n" + string(buf)
} else {
logger.Debugf("User [%s, %s] 's running [go vet] [runningId=%d] has done", username, sid, runningId)
channelRet["output"] = "<span class='vet-succ'>" + i18n.Get(locale, "vet-succ").(string) + "</span>\n" + string(buf)
}
if nil != session.OutputWS[sid] {
wsChannel := session.OutputWS[sid]
err := wsChannel.WriteJSON(&channelRet)
if nil != err {
logger.Warn(err)
}
wsChannel.Refresh()
}
}(rand.Int())
}
// GoFmtHandler handles request of formatting Go source code.
//
// This function will select a format tooll based on user's configuration:
// 1. gofmt
// 2. goimports
func GoFmtHandler(w http.ResponseWriter, r *http.Request) {
result := util.NewResult()
defer util.RetResult(w, r, result)
session, _ := session.HTTPSession.Get(r, "wide-session")
if session.IsNew {
http.Error(w, "Forbidden", http.StatusForbidden)
return
}
username := session.Values["username"].(string)
var args map[string]interface{}
if err := json.NewDecoder(r.Body).Decode(&args); err != nil {
logger.Error(err)
result.Succ = false
return
}
filePath := args["file"].(string)
if util.Go.IsAPI(filePath) {
result.Succ = false
return
}
fout, err := os.Create(filePath)
if nil != err {
logger.Error(err)
result.Succ = false
return
}
code := args["code"].(string)
fout.WriteString(code)
if err := fout.Close(); nil != err {
logger.Error(err)
result.Succ = false
return
}
data := map[string]interface{}{}
result.Data = &data
data["code"] = code
result.Data = data
fmt := conf.GetGoFmt(username)
argv := []string{filePath}
cmd := exec.Command(fmt, argv...)
bytes, _ := cmd.Output()
output := string(bytes)
if "" == output {
// format error, returns the original content
result.Succ = true
return
}
code = string(output)
data["code"] = code
fout, err = os.Create(filePath)
fout.WriteString(code)
if err := fout.Close(); nil != err {
logger.Error(err)
result.Succ = false
return
}
}
// PreferenceHandler handles request of preference page.
func PreferenceHandler(w http.ResponseWriter, r *http.Request) {
httpSession, _ := HTTPSession.Get(r, "wide-session")
if httpSession.IsNew {
http.Redirect(w, r, conf.Wide.Context+"login", http.StatusFound)
return
}
httpSession.Options.MaxAge = conf.Wide.HTTPSessionMaxAge
if "" != conf.Wide.Context {
httpSession.Options.Path = conf.Wide.Context
}
httpSession.Save(r, w)
username := httpSession.Values["username"].(string)
user := conf.GetUser(username)
if "GET" == r.Method {
model := map[string]interface{}{"conf": conf.Wide, "i18n": i18n.GetAll(user.Locale), "user": user,
"ver": conf.WideVersion, "goos": runtime.GOOS, "goarch": runtime.GOARCH, "gover": runtime.Version(),
"locales": i18n.GetLocalesNames(), "gofmts": util.Go.GetGoFormats(),
"themes": conf.GetThemes(), "editorThemes": conf.GetEditorThemes()}
t, err := template.ParseFiles("views/preference.html")
if nil != err {
logger.Error(err)
http.Error(w, err.Error(), 500)
return
}
t.Execute(w, model)
return
}
// non-GET request as save request
result := util.NewResult()
defer util.RetResult(w, r, result)
args := struct {
FontFamily string
FontSize string
GoFmt string
Keymap string
Workspace string
Username string
Password string
Email string
Locale string
Theme string
EditorFontFamily string
EditorFontSize string
EditorLineHeight string
EditorTheme string
EditorTabSize string
}{}
if err := json.NewDecoder(r.Body).Decode(&args); err != nil {
logger.Error(err)
result.Succ = false
return
}
user.FontFamily = args.FontFamily
user.FontSize = args.FontSize
user.GoFormat = args.GoFmt
user.Keymap = args.Keymap
// XXX: disallow change workspace at present
// user.Workspace = args.Workspace
if user.Password != args.Password {
user.Password = conf.Salt(args.Password, user.Salt)
}
user.Email = args.Email
hash := md5.New()
hash.Write([]byte(user.Email))
user.Gravatar = hex.EncodeToString(hash.Sum(nil))
user.Locale = args.Locale
user.Theme = args.Theme
user.Editor.FontFamily = args.EditorFontFamily
user.Editor.FontSize = args.EditorFontSize
user.Editor.LineHeight = args.EditorLineHeight
user.Editor.Theme = args.EditorTheme
user.Editor.TabSize = args.EditorTabSize
conf.UpdateCustomizedConf(username)
now := time.Now().UnixNano()
user.Lived = now
user.Updated = now
result.Succ = user.Save()
}
// SignUpUserHandler handles request of registering user.
func SignUpUserHandler(w http.ResponseWriter, r *http.Request) {
if "GET" == r.Method {
// show the user sign up page
firstUserWorkspace := conf.GetUserWorkspace(conf.Users[0].Name)
dir := filepath.Dir(firstUserWorkspace)
model := map[string]interface{}{"conf": conf.Wide, "i18n": i18n.GetAll(conf.Wide.Locale),
"locale": conf.Wide.Locale, "ver": conf.WideVersion, "dir": dir,
"pathSeparator": conf.PathSeparator, "year": time.Now().Year()}
t, err := template.ParseFiles("views/sign_up.html")
if nil != err {
logger.Error(err)
http.Error(w, err.Error(), 500)
return
}
t.Execute(w, model)
return
}
// non-GET request as add user request
result := util.NewResult()
defer util.RetResult(w, r, result)
var args map[string]interface{}
if err := json.NewDecoder(r.Body).Decode(&args); err != nil {
logger.Error(err)
result.Succ = false
return
}
username := args["username"].(string)
password := args["password"].(string)
email := args["email"].(string)
msg := addUser(username, password, email)
if userCreated != msg {
result.Succ = false
result.Msg = msg
return
}
// create a HTTP session
httpSession, _ := HTTPSession.Get(r, "wide-session")
httpSession.Values["username"] = username
httpSession.Values["id"] = strconv.Itoa(rand.Int())
httpSession.Options.MaxAge = conf.Wide.HTTPSessionMaxAge
if "" != conf.Wide.Context {
httpSession.Options.Path = conf.Wide.Context
}
httpSession.Save(r, w)
}
// SaveHandler handles request of Playground code save.
func SaveHandler(w http.ResponseWriter, r *http.Request) {
result := util.NewResult()
defer util.RetResult(w, r, result)
session, _ := session.HTTPSession.Get(r, "wide-session")
if session.IsNew {
http.Error(w, "Forbidden", http.StatusForbidden)
return
}
var args map[string]interface{}
if err := json.NewDecoder(r.Body).Decode(&args); err != nil {
logger.Error(err)
result.Succ = false
return
}
code := args["code"].(string)
// Step1. format code
cmd := exec.Command("gofmt")
stdin, err := cmd.StdinPipe()
if nil != err {
logger.Error(err)
result.Succ = false
return
}
io.WriteString(stdin, code)
stdin.Close()
bytes, _ := cmd.Output()
output := string(bytes)
if "" != output {
code = string(output)
}
data := map[string]interface{}{}
result.Data = &data
data["code"] = code
// Step2. generate file name
hasher := md5.New()
hasher.Write([]byte(code))
fileName := hex.EncodeToString(hasher.Sum(nil))
fileName += ".go"
data["fileName"] = fileName
// Step3. write file
filePath := filepath.Clean(conf.Wide.Playground + "/" + fileName)
fout, err := os.Create(filePath)
fout.WriteString(code)
if err := fout.Close(); nil != err {
logger.Error(err)
result.Succ = false
return
}
}
// FindUsagesHandler handles request of finding usages.
func FindUsagesHandler(w http.ResponseWriter, r *http.Request) {
result := util.NewResult()
defer util.RetResult(w, r, result)
session, _ := session.HTTPSession.Get(r, "wide-session")
if session.IsNew {
http.Error(w, "Forbidden", http.StatusForbidden)
return
}
username := session.Values["username"].(string)
var args map[string]interface{}
if err := json.NewDecoder(r.Body).Decode(&args); err != nil {
logger.Error(err)
http.Error(w, err.Error(), 500)
return
}
filePath := args["path"].(string)
curDir := filepath.Dir(filePath)
filename := filepath.Base(filePath)
fout, err := os.Create(filePath)
if nil != err {
logger.Error(err)
result.Succ = false
return
}
code := args["code"].(string)
fout.WriteString(code)
if err := fout.Close(); nil != err {
logger.Error(err)
result.Succ = false
return
}
line := int(args["cursorLine"].(float64))
ch := int(args["cursorCh"].(float64))
offset := getCursorOffset(code, line, ch)
logger.Tracef("offset [%d]", offset)
ideStub := util.Go.GetExecutableInGOBIN("gotools")
argv := []string{"types", "-pos", filename + ":" + strconv.Itoa(offset), "-use", "."}
cmd := exec.Command(ideStub, argv...)
cmd.Dir = curDir
setCmdEnv(cmd, username)
output, err := cmd.CombinedOutput()
if nil != err {
logger.Error(err)
http.Error(w, err.Error(), 500)
return
}
out := strings.TrimSpace(string(output))
if "" == out {
result.Succ = false
return
}
founds := strings.Split(out, "\n")
usages := []*file.Snippet{}
for _, found := range founds {
found = strings.TrimSpace(found)
part := found[:strings.LastIndex(found, ":")]
cursorSep := strings.LastIndex(part, ":")
path := filepath.ToSlash(found[:cursorSep])
cursorLine, _ := strconv.Atoi(found[cursorSep+1 : strings.LastIndex(found, ":")])
cursorCh, _ := strconv.Atoi(found[strings.LastIndex(found, ":")+1:])
usage := &file.Snippet{Path: path, Line: cursorLine, Ch: cursorCh, Contents: []string{""}}
usages = append(usages, usage)
}
result.Data = usages
}
// GetExprInfoHandler handles request of getting expression infomation.
func GetExprInfoHandler(w http.ResponseWriter, r *http.Request) {
result := util.NewResult()
defer util.RetResult(w, r, result)
session, _ := session.HTTPSession.Get(r, "wide-session")
username := session.Values["username"].(string)
var args map[string]interface{}
if err := json.NewDecoder(r.Body).Decode(&args); err != nil {
logger.Error(err)
http.Error(w, err.Error(), 500)
return
}
path := args["path"].(string)
curDir := filepath.Dir(path)
filename := filepath.Base(path)
fout, err := os.Create(path)
if nil != err {
logger.Error(err)
result.Succ = false
return
}
code := args["code"].(string)
fout.WriteString(code)
if err := fout.Close(); nil != err {
logger.Error(err)
result.Succ = false
return
}
line := int(args["cursorLine"].(float64))
ch := int(args["cursorCh"].(float64))
offset := getCursorOffset(code, line, ch)
logger.Tracef("offset [%d]", offset)
ideStub := util.Go.GetExecutableInGOBIN("gotools")
argv := []string{"types", "-pos", filename + ":" + strconv.Itoa(offset), "-info", "."}
cmd := exec.Command(ideStub, argv...)
cmd.Dir = curDir
setCmdEnv(cmd, username)
output, err := cmd.CombinedOutput()
if nil != err {
logger.Error(err)
http.Error(w, err.Error(), 500)
return
}
exprInfo := strings.TrimSpace(string(output))
if "" == exprInfo {
result.Succ = false
return
}
result.Data = exprInfo
}
// GetOutlineHandler gets outfile of a go file.
func GetOutlineHandler(w http.ResponseWriter, r *http.Request) {
result := util.NewResult()
defer util.RetResult(w, r, result)
var args map[string]interface{}
if err := json.NewDecoder(r.Body).Decode(&args); err != nil {
logger.Error(err)
result.Succ = false
return
}
code := args["code"].(string)
fset := token.NewFileSet()
f, err := parser.ParseFile(fset, "", code, 0)
if err != nil {
result.Succ = false
return
}
data := map[string]interface{}{}
result.Data = &data
// ast.Print(fset, f)
line, ch := getCursor(code, int(f.Name.Pos()))
data["package"] = &element{Name: f.Name.Name, Line: line, Ch: ch}
imports := []*element{}
for _, astImport := range f.Imports {
line, ch := getCursor(code, int(astImport.Path.Pos()))
imports = append(imports, &element{Name: astImport.Path.Value, Line: line, Ch: ch})
}
data["imports"] = imports
funcDecls := []*element{}
varDecls := []*element{}
constDecls := []*element{}
structDecls := []*element{}
interfaceDecls := []*element{}
typeDecls := []*element{}
for _, decl := range f.Decls {
switch decl.(type) {
case *ast.FuncDecl:
funcDecl := decl.(*ast.FuncDecl)
line, ch := getCursor(code, int(funcDecl.Name.Pos()))
funcDecls = append(funcDecls, &element{Name: funcDecl.Name.Name, Line: line, Ch: ch})
case *ast.GenDecl:
genDecl := decl.(*ast.GenDecl)
for _, spec := range genDecl.Specs {
switch genDecl.Tok {
case token.VAR:
variableSpec := spec.(*ast.ValueSpec)
for _, varName := range variableSpec.Names {
line, ch := getCursor(code, int(varName.Pos()))
varDecls = append(varDecls, &element{Name: varName.Name, Line: line, Ch: ch})
}
case token.TYPE:
typeSpec := spec.(*ast.TypeSpec)
line, ch := getCursor(code, int(typeSpec.Pos()))
switch typeSpec.Type.(type) {
case *ast.StructType:
structDecls = append(structDecls, &element{Name: typeSpec.Name.Name, Line: line, Ch: ch})
case *ast.InterfaceType:
interfaceDecls = append(interfaceDecls, &element{Name: typeSpec.Name.Name, Line: line, Ch: ch})
case *ast.Ident:
typeDecls = append(typeDecls, &element{Name: typeSpec.Name.Name, Line: line, Ch: ch})
}
case token.CONST:
constSpec := spec.(*ast.ValueSpec)
for _, constName := range constSpec.Names {
line, ch := getCursor(code, int(constName.Pos()))
constDecls = append(constDecls, &element{Name: constName.Name, Line: line, Ch: ch})
}
}
}
}
}
data["funcDecls"] = funcDecls
data["varDecls"] = varDecls
data["constDecls"] = constDecls
data["structDecls"] = structDecls
data["interfaceDecls"] = interfaceDecls
data["typeDecls"] = typeDecls
}
// BuildHandler handles request of building.
func BuildHandler(w http.ResponseWriter, r *http.Request) {
result := util.NewResult()
defer util.RetResult(w, r, result)
httpSession, _ := session.HTTPSession.Get(r, "wide-session")
if httpSession.IsNew {
http.Error(w, "Forbidden", http.StatusForbidden)
return
}
username := httpSession.Values["username"].(string)
locale := conf.GetUser(username).Locale
var args map[string]interface{}
if err := json.NewDecoder(r.Body).Decode(&args); err != nil {
logger.Error(err)
result.Succ = false
return
}
sid := args["sid"].(string)
filePath := args["file"].(string)
if util.Go.IsAPI(filePath) || !session.CanAccess(username, filePath) {
http.Error(w, "Forbidden", http.StatusForbidden)
return
}
curDir := filepath.Dir(filePath)
fout, err := os.Create(filePath)
if nil != err {
logger.Error(err)
result.Succ = false
return
}
code := args["code"].(string)
fout.WriteString(code)
if err := fout.Close(); nil != err {
logger.Error(err)
result.Succ = false
return
}
suffix := ""
if util.OS.IsWindows() {
suffix = ".exe"
}
cmd := exec.Command("go", "build")
cmd.Dir = curDir
setCmdEnv(cmd, username)
executable := filepath.Base(curDir) + suffix
executable = filepath.Join(curDir, executable)
stdout, err := cmd.StdoutPipe()
if nil != err {
logger.Error(err)
result.Succ = false
return
}
stderr, err := cmd.StderrPipe()
if nil != err {
logger.Error(err)
result.Succ = false
return
}
if !result.Succ {
return
}
channelRet := map[string]interface{}{}
if nil != session.OutputWS[sid] {
// display "START [go build]" in front-end browser
channelRet["output"] = "<span class='start-build'>" + i18n.Get(locale, "start-build").(string) + "</span>\n"
channelRet["cmd"] = "start-build"
wsChannel := session.OutputWS[sid]
err := wsChannel.WriteJSON(&channelRet)
if nil != err {
logger.Error(err)
return
}
wsChannel.Refresh()
}
reader := bufio.NewReader(io.MultiReader(stdout, stderr))
if err := cmd.Start(); nil != err {
logger.Error(err)
result.Succ = false
return
}
go func(runningId int) {
defer util.Recover()
defer cmd.Wait()
// logger.Debugf("User [%s, %s] is building [id=%d, dir=%s]", username, sid, runningId, curDir)
// read all
buf, _ := ioutil.ReadAll(reader)
channelRet := map[string]interface{}{}
channelRet["cmd"] = "build"
channelRet["executable"] = executable
if 0 == len(buf) { // build success
channelRet["nextCmd"] = args["nextCmd"]
channelRet["output"] = "<span class='build-succ'>" + i18n.Get(locale, "build-succ").(string) + "</span>\n"
go func() { // go install, for subsequent gocode lib-path
defer util.Recover()
cmd := exec.Command("go", "install")
cmd.Dir = curDir
setCmdEnv(cmd, username)
out, _ := cmd.CombinedOutput()
if len(out) > 0 {
logger.Warn(string(out))
}
}()
} else { // build error
// build gutter lint
errOut := string(buf)
lines := strings.Split(errOut, "\n")
// path process
var errOutWithPath string
for _, line := range lines {
errOutWithPath += parsePath(curDir, line) + "\n"
}
channelRet["output"] = "<span class='build-error'>" + i18n.Get(locale, "build-error").(string) + "</span>\n" +
"<span class='stderr'>" + errOutWithPath + "</span>"
// lint process
if lines[0][0] == '#' {
lines = lines[1:] // skip the first line
}
lints := []*Lint{}
for _, line := range lines {
if len(line) < 1 {
continue
}
if line[0] == '\t' {
// append to the last lint
last := len(lints)
msg := lints[last-1].Msg
msg += line
lints[last-1].Msg = msg
continue
}
file := line[:strings.Index(line, ":")]
left := line[strings.Index(line, ":")+1:]
index := strings.Index(left, ":")
lineNo := 0
msg := left
if index >= 0 {
lineNo, err = strconv.Atoi(left[:index])
if nil != err {
continue
}
msg = left[index+2:]
}
lint := &Lint{
File: filepath.Join(curDir, file),
LineNo: lineNo - 1,
Severity: lintSeverityError,
Msg: msg,
}
lints = append(lints, lint)
}
channelRet["lints"] = lints
}
if nil != session.OutputWS[sid] {
// logger.Debugf("User [%s, %s] 's build [id=%d, dir=%s] has done", username, sid, runningId, curDir)
wsChannel := session.OutputWS[sid]
err := wsChannel.WriteJSON(&channelRet)
if nil != err {
logger.Warn(err)
}
wsChannel.Refresh()
}
}(rand.Int())
}
// GetFileHandler handles request of opening file by editor.
func GetFileHandler(w http.ResponseWriter, r *http.Request) {
httpSession, _ := session.HTTPSession.Get(r, "wide-session")
if httpSession.IsNew {
http.Error(w, "Forbidden", http.StatusForbidden)
return
}
username := httpSession.Values["username"].(string)
result := util.NewResult()
defer util.RetResult(w, r, result)
var args map[string]interface{}
if err := json.NewDecoder(r.Body).Decode(&args); err != nil {
logger.Error(err)
result.Succ = false
return
}
path := args["path"].(string)
if !util.Go.IsAPI(path) && !session.CanAccess(username, path) {
http.Error(w, "Forbidden", http.StatusForbidden)
return
}
size := util.File.GetFileSize(path)
if size > 5242880 { // 5M
result.Succ = false
result.Msg = "This file is too large to open :("
return
}
data := map[string]interface{}{}
buf, _ := ioutil.ReadFile(path)
extension := filepath.Ext(path)
if util.File.IsImg(extension) {
// image file will be open in a browser tab
data["mode"] = "img"
username := conf.GetOwner(path)
if "" == username {
logger.Warnf("The path [%s] has no owner")
data["path"] = ""
return
}
user := conf.GetUser(username)
data["path"] = "/workspace/" + user.Name + "/" + strings.Replace(path, user.GetWorkspace(), "", 1)
return
}
content := string(buf)
if util.File.IsBinary(content) {
result.Succ = false
result.Msg = "Can't open a binary file :("
} else {
data["content"] = content
data["path"] = path
}
result.Data = data
}
// GoInstallHandler handles request of go install.
func GoInstallHandler(w http.ResponseWriter, r *http.Request) {
result := util.NewResult()
defer util.RetResult(w, r, result)
httpSession, _ := session.HTTPSession.Get(r, "wide-session")
if httpSession.IsNew {
http.Error(w, "Forbidden", http.StatusForbidden)
return
}
username := httpSession.Values["username"].(string)
locale := conf.GetUser(username).Locale
var args map[string]interface{}
if err := json.NewDecoder(r.Body).Decode(&args); err != nil {
logger.Error(err)
result.Succ = false
return
}
sid := args["sid"].(string)
filePath := args["file"].(string)
curDir := filepath.Dir(filePath)
cmd := exec.Command("go", "install")
cmd.Dir = curDir
setCmdEnv(cmd, username)
logger.Debugf("go install %s", curDir)
stdout, err := cmd.StdoutPipe()
if nil != err {
logger.Error(err)
result.Succ = false
return
}
stderr, err := cmd.StderrPipe()
if nil != err {
logger.Error(err)
result.Succ = false
return
}
if !result.Succ {
return
}
channelRet := map[string]interface{}{}
if nil != session.OutputWS[sid] {
// display "START [go install]" in front-end browser
channelRet["output"] = "<span class='start-install'>" + i18n.Get(locale, "start-install").(string) + "</span>\n"
channelRet["cmd"] = "start-install"
wsChannel := session.OutputWS[sid]
err := wsChannel.WriteJSON(&channelRet)
if nil != err {
logger.Error(err)
return
}
wsChannel.Refresh()
}
reader := bufio.NewReader(io.MultiReader(stdout, stderr))
if err := cmd.Start(); nil != err {
logger.Error(err)
result.Succ = false
return
}
go func(runningId int) {
defer util.Recover()
defer cmd.Wait()
logger.Debugf("User [%s, %s] is running [go install] [id=%d, dir=%s]", username, sid, runningId, curDir)
// read all
buf, _ := ioutil.ReadAll(reader)
channelRet := map[string]interface{}{}
channelRet["cmd"] = "go install"
if 0 != len(buf) { // build error
// build gutter lint
errOut := string(buf)
lines := strings.Split(errOut, "\n")
if lines[0][0] == '#' {
lines = lines[1:] // skip the first line
}
lints := []*Lint{}
for _, line := range lines {
if len(line) < 1 {
continue
}
if line[0] == '\t' {
// append to the last lint
last := len(lints)
msg := lints[last-1].Msg
msg += line
lints[last-1].Msg = msg
continue
}
file := line[:strings.Index(line, ":")]
left := line[strings.Index(line, ":")+1:]
index := strings.Index(left, ":")
lineNo := 0
msg := left
if index >= 0 {
lineNo, _ = strconv.Atoi(left[:index])
msg = left[index+2:]
}
lint := &Lint{
File: file,
LineNo: lineNo - 1,
Severity: lintSeverityError,
Msg: msg,
}
lints = append(lints, lint)
}
channelRet["lints"] = lints
channelRet["output"] = "<span class='install-error'>" + i18n.Get(locale, "install-error").(string) + "</span>\n" + errOut
} else {
channelRet["output"] = "<span class='install-succ'>" + i18n.Get(locale, "install-succ").(string) + "</span>\n"
}
if nil != session.OutputWS[sid] {
logger.Debugf("User [%s, %s] 's running [go install] [id=%d, dir=%s] has done", username, sid, runningId, curDir)
wsChannel := session.OutputWS[sid]
err := wsChannel.WriteJSON(&channelRet)
if nil != err {
logger.Warn(err)
}
wsChannel.Refresh()
}
}(rand.Int())
}
// Clone handles request of git clone.
func CloneHandler(w http.ResponseWriter, r *http.Request) {
result := util.NewResult()
defer util.RetResult(w, r, result)
httpSession, _ := session.HTTPSession.Get(r, "wide-session")
if httpSession.IsNew {
http.Error(w, "Forbidden", http.StatusForbidden)
return
}
username := httpSession.Values["username"].(string)
locale := conf.GetUser(username).Locale
var args map[string]interface{}
if err := json.NewDecoder(r.Body).Decode(&args); err != nil {
logger.Error(err)
result.Succ = false
return
}
sid := args["sid"].(string)
path := args["path"].(string)
repository := args["repository"].(string)
cmd := exec.Command("git", "clone", repository)
cmd.Dir = path
stdout, err := cmd.StdoutPipe()
if nil != err {
logger.Error(err)
result.Succ = false
return
}
stderr, err := cmd.StderrPipe()
if nil != err {
logger.Error(err)
result.Succ = false
return
}
if !result.Succ {
return
}
channelRet := map[string]interface{}{}
if nil != session.OutputWS[sid] {
// display "START [git clone]" in front-end browser
channelRet["output"] = "<span class='start-get'>" + i18n.Get(locale, "start-git_clone").(string) + "</span>\n"
channelRet["cmd"] = "start-git_clone"
wsChannel := session.OutputWS[sid]
err := wsChannel.WriteJSON(&channelRet)
if nil != err {
logger.Warn(err)
return
}
wsChannel.Refresh()
}
reader := bufio.NewReader(io.MultiReader(stdout, stderr))
if err := cmd.Start(); nil != err {
logger.Error(err)
result.Succ = false
return
}
go func(runningId int) {
defer util.Recover()
defer cmd.Wait()
logger.Debugf("User [%s, %s] is running [git clone] [runningId=%d]", username, sid, runningId)
channelRet := map[string]interface{}{}
channelRet["cmd"] = "git clone"
// read all
buf, err := ioutil.ReadAll(reader)
if nil != err {
logger.Warn(err)
// TODO: handle clone error
}
logger.Debugf("User [%s, %s] 's running [git clone] [runningId=%d] has done: %s", username, sid, runningId, string(buf))
channelRet["output"] = "<span class='get-succ'>" + i18n.Get(locale, "git_clone-done").(string) + "</span>\n"
if nil != session.OutputWS[sid] {
wsChannel := session.OutputWS[sid]
err := wsChannel.WriteJSON(&channelRet)
if nil != err {
logger.Warn(err)
}
wsChannel.Refresh()
}
}(rand.Int())
}