477 lines
11 KiB
Go
477 lines
11 KiB
Go
// Copyright (c) 2014-2017, b3log.org & hacpai.com
|
|
//
|
|
// 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 session
|
|
|
|
import (
|
|
"crypto/md5"
|
|
"encoding/hex"
|
|
"encoding/json"
|
|
"math/rand"
|
|
"net/http"
|
|
"os"
|
|
"path/filepath"
|
|
"runtime"
|
|
"strconv"
|
|
"strings"
|
|
"sync"
|
|
"text/template"
|
|
"time"
|
|
|
|
"github.com/b3log/wide/conf"
|
|
"github.com/b3log/wide/i18n"
|
|
"github.com/b3log/wide/util"
|
|
)
|
|
|
|
const (
|
|
// TODO: i18n
|
|
|
|
userExists = "user exists"
|
|
emailExists = "email exists"
|
|
userCreated = "user created"
|
|
userCreateError = "user create error"
|
|
notAllowRegister = "not allow register"
|
|
)
|
|
|
|
// Exclusive lock for adding user.
|
|
var addUserMutex sync.Mutex
|
|
|
|
// 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
|
|
GoBuildArgs 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.GoBuildArgs = args.GoBuildArgs
|
|
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()
|
|
}
|
|
|
|
// 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)
|
|
}
|
|
|
|
// 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)
|
|
}
|
|
|
|
// SignUpUserHandler handles request of registering user.
|
|
func SignUpUserHandler(w http.ResponseWriter, r *http.Request) {
|
|
if "GET" == r.Method {
|
|
// show the user sign up page
|
|
|
|
model := map[string]interface{}{"conf": conf.Wide, "i18n": i18n.GetAll(conf.Wide.Locale),
|
|
"locale": conf.Wide.Locale, "ver": conf.WideVersion, "dir": conf.Wide.UsersWorkspaces,
|
|
"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)
|
|
}
|
|
|
|
// FixedTimeSave saves online users' configurations periodically (1 minute).
|
|
//
|
|
// Main goal of this function is to save user session content, for restoring session content while user open Wide next time.
|
|
func FixedTimeSave() {
|
|
go func() {
|
|
defer util.Recover()
|
|
|
|
for _ = range time.Tick(time.Minute) {
|
|
users := getOnlineUsers()
|
|
|
|
for _, u := range users {
|
|
if u.Save() {
|
|
logger.Tracef("Saved online user [%s]'s configurations", u.Name)
|
|
}
|
|
}
|
|
}
|
|
}()
|
|
}
|
|
|
|
// CanAccess determines whether the user specified by the given username can access the specified path.
|
|
func CanAccess(username, path string) bool {
|
|
path = filepath.FromSlash(path)
|
|
|
|
userWorkspace := conf.GetUserWorkspace(username)
|
|
workspaces := filepath.SplitList(userWorkspace)
|
|
|
|
for _, workspace := range workspaces {
|
|
if strings.HasPrefix(path, workspace) {
|
|
return true
|
|
}
|
|
}
|
|
|
|
return false
|
|
}
|
|
|
|
func getOnlineUsers() []*conf.User {
|
|
ret := []*conf.User{}
|
|
|
|
usernames := map[string]string{} // distinct username
|
|
for _, s := range WideSessions {
|
|
usernames[s.Username] = s.Username
|
|
}
|
|
|
|
for _, username := range usernames {
|
|
u := conf.GetUser(username)
|
|
|
|
if "playground" == username { // user [playground] is a reserved mock user
|
|
continue
|
|
}
|
|
|
|
if nil == u {
|
|
logger.Warnf("Not found user [%s]", username)
|
|
|
|
continue
|
|
}
|
|
|
|
ret = append(ret, u)
|
|
}
|
|
|
|
return ret
|
|
}
|
|
|
|
// addUser add a user with the specified username, password and email.
|
|
//
|
|
// 1. create the user's workspace
|
|
// 2. generate 'Hello, 世界' demo code in the workspace (a console version and a HTTP version)
|
|
// 3. update the user customized configurations, such as style.css
|
|
// 4. serve files of the user's workspace via HTTP
|
|
//
|
|
// Note: user [playground] is a reserved mock user
|
|
func addUser(username, password, email string) string {
|
|
if !conf.Wide.AllowRegister {
|
|
return notAllowRegister
|
|
}
|
|
|
|
if "playground" == username {
|
|
return userExists
|
|
}
|
|
|
|
addUserMutex.Lock()
|
|
defer addUserMutex.Unlock()
|
|
|
|
for _, user := range conf.Users {
|
|
if strings.ToLower(user.Name) == strings.ToLower(username) {
|
|
return userExists
|
|
}
|
|
|
|
if strings.ToLower(user.Email) == strings.ToLower(email) {
|
|
return emailExists
|
|
}
|
|
}
|
|
|
|
workspace := filepath.Join(conf.Wide.UsersWorkspaces, username)
|
|
|
|
newUser := conf.NewUser(username, password, email, workspace)
|
|
conf.Users = append(conf.Users, newUser)
|
|
|
|
if !newUser.Save() {
|
|
return userCreateError
|
|
}
|
|
|
|
conf.CreateWorkspaceDir(workspace)
|
|
helloWorld(workspace)
|
|
conf.UpdateCustomizedConf(username)
|
|
|
|
http.Handle("/workspace/"+username+"/",
|
|
http.StripPrefix("/workspace/"+username+"/", http.FileServer(http.Dir(newUser.GetWorkspace()))))
|
|
|
|
logger.Infof("Created a user [%s]", username)
|
|
|
|
return userCreated
|
|
}
|
|
|
|
// helloWorld generates the 'Hello, 世界' source code.
|
|
// 1. src/hello/main.go
|
|
// 2. src/web/main.go
|
|
func helloWorld(workspace string) {
|
|
consoleHello(workspace)
|
|
webHello(workspace)
|
|
}
|
|
|
|
func consoleHello(workspace string) {
|
|
dir := workspace + conf.PathSeparator + "src" + conf.PathSeparator + "hello"
|
|
if err := os.MkdirAll(dir, 0755); nil != err {
|
|
logger.Error(err)
|
|
|
|
return
|
|
}
|
|
|
|
fout, err := os.Create(dir + conf.PathSeparator + "main.go")
|
|
if nil != err {
|
|
logger.Error(err)
|
|
|
|
return
|
|
}
|
|
|
|
fout.WriteString(conf.HelloWorld)
|
|
|
|
fout.Close()
|
|
}
|
|
|
|
func webHello(workspace string) {
|
|
dir := workspace + conf.PathSeparator + "src" + conf.PathSeparator + "web"
|
|
if err := os.MkdirAll(dir, 0755); nil != err {
|
|
logger.Error(err)
|
|
|
|
return
|
|
}
|
|
|
|
fout, err := os.Create(dir + conf.PathSeparator + "main.go")
|
|
if nil != err {
|
|
logger.Error(err)
|
|
|
|
return
|
|
}
|
|
|
|
code := `package main
|
|
|
|
import (
|
|
"fmt"
|
|
"math/rand"
|
|
"net/http"
|
|
"strconv"
|
|
"time"
|
|
)
|
|
|
|
func main() {
|
|
http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
|
|
w.Write([]byte("Hello, 世界"))
|
|
})
|
|
|
|
port := getPort()
|
|
|
|
// you may need to change the address
|
|
fmt.Println("Open http://wide.b3log.org:" + port + " in your browser to see the result")
|
|
|
|
if err := http.ListenAndServe(":"+port, nil); nil != err {
|
|
fmt.Println(err)
|
|
}
|
|
}
|
|
|
|
func getPort() string {
|
|
rand.Seed(time.Now().UnixNano())
|
|
|
|
return strconv.Itoa(7000 + rand.Intn(8000-7000))
|
|
}
|
|
|
|
`
|
|
|
|
fout.WriteString(code)
|
|
|
|
fout.Close()
|
|
}
|