wide/main.go

342 lines
9.6 KiB
Go

// Copyright (c) 2014, B3log
//
// 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 main
import (
"flag"
"html/template"
"math/rand"
"mime"
"net/http"
"runtime"
"strconv"
"time"
"github.com/b3log/wide/conf"
"github.com/b3log/wide/editor"
"github.com/b3log/wide/event"
"github.com/b3log/wide/file"
"github.com/b3log/wide/i18n"
"github.com/b3log/wide/notification"
"github.com/b3log/wide/output"
"github.com/b3log/wide/session"
"github.com/b3log/wide/shell"
"github.com/b3log/wide/util"
"github.com/golang/glog"
)
// The only one init function in Wide.
func init() {
// TODO: args
flag.Set("logtostderr", "true")
flag.Set("v", "3")
flag.Parse()
i18n.Load()
event.Load()
conf.Load()
conf.FixedTimeCheckEnv()
conf.FixedTimeSave()
session.FixedTimeRelease()
}
// indexHandler handles request of Wide index.
func indexHandler(w http.ResponseWriter, r *http.Request) {
httpSession, _ := session.HTTPSession.Get(r, "wide-session")
if httpSession.IsNew {
http.Redirect(w, r, "/login", http.StatusFound)
return
}
httpSession.Options.MaxAge = conf.Wide.HTTPSessionMaxAge
httpSession.Save(r, w)
// create a Wide session
rand.Seed(time.Now().UnixNano())
sid := strconv.Itoa(rand.Int())
wideSession := session.WideSessions.New(httpSession, sid)
username := httpSession.Values["username"].(string)
user := conf.Wide.GetUser(username)
if nil == user {
glog.Warningf("Not found user [%s]", username)
http.Redirect(w, r, "/login", http.StatusFound)
return
}
locale := user.Locale
wideSessions := session.WideSessions.GetByUsername(username)
userConf := conf.Wide.GetUser(username)
model := map[string]interface{}{"conf": conf.Wide, "i18n": i18n.GetAll(locale), "locale": locale,
"session": wideSession, "latestSessionContent": userConf.LatestSessionContent,
"pathSeparator": conf.PathSeparator, "codeMirrorVer": conf.CodeMirrorVer}
glog.V(3).Infof("User [%s] has [%d] sessions", username, len(wideSessions))
t, err := template.ParseFiles("views/index.html")
if nil != err {
glog.Error(err)
http.Error(w, err.Error(), 500)
return
}
t.Execute(w, model)
}
// serveSingle registers the handler function for the given pattern and filename.
func serveSingle(pattern string, filename string) {
http.HandleFunc(pattern, func(w http.ResponseWriter, r *http.Request) {
http.ServeFile(w, r, filename)
})
}
// startHandler handles request of start page.
func startHandler(w http.ResponseWriter, r *http.Request) {
httpSession, _ := session.HTTPSession.Get(r, "wide-session")
if httpSession.IsNew {
http.Redirect(w, r, "/login", http.StatusFound)
return
}
httpSession.Options.MaxAge = conf.Wide.HTTPSessionMaxAge
httpSession.Save(r, w)
username := httpSession.Values["username"].(string)
locale := conf.Wide.GetUser(username).Locale
userWorkspace := conf.Wide.GetUserWorkspace(username)
sid := r.URL.Query()["sid"][0]
wSession := session.WideSessions.Get(sid)
if nil == wSession {
glog.Errorf("Session [%s] not found", sid)
}
model := map[string]interface{}{"conf": conf.Wide, "i18n": i18n.GetAll(locale), "locale": locale,
"username": username, "workspace": userWorkspace, "ver": conf.WideVersion, "session": wSession}
t, err := template.ParseFiles("views/start.html")
if nil != err {
glog.Error(err)
http.Error(w, err.Error(), 500)
return
}
t.Execute(w, model)
}
// keyboardShortcutsHandler handles request of keyboard shortcuts page.
func keyboardShortcutsHandler(w http.ResponseWriter, r *http.Request) {
httpSession, _ := session.HTTPSession.Get(r, "wide-session")
if httpSession.IsNew {
http.Redirect(w, r, "/login", http.StatusFound)
return
}
httpSession.Options.MaxAge = conf.Wide.HTTPSessionMaxAge
httpSession.Save(r, w)
username := httpSession.Values["username"].(string)
locale := conf.Wide.GetUser(username).Locale
model := map[string]interface{}{"conf": conf.Wide, "i18n": i18n.GetAll(locale), "locale": locale}
t, err := template.ParseFiles("views/keyboard_shortcuts.html")
if nil != err {
glog.Error(err)
http.Error(w, err.Error(), 500)
return
}
t.Execute(w, model)
}
// aboutHandle handles request of about page.
func aboutHandler(w http.ResponseWriter, r *http.Request) {
httpSession, _ := session.HTTPSession.Get(r, "wide-session")
if httpSession.IsNew {
http.Redirect(w, r, "/login", http.StatusFound)
return
}
httpSession.Options.MaxAge = conf.Wide.HTTPSessionMaxAge
httpSession.Save(r, w)
username := httpSession.Values["username"].(string)
locale := conf.Wide.GetUser(username).Locale
model := map[string]interface{}{"conf": conf.Wide, "i18n": i18n.GetAll(locale), "locale": locale,
"ver": conf.WideVersion, "goos": runtime.GOOS, "goarch": runtime.GOARCH, "gover": runtime.Version()}
t, err := template.ParseFiles("views/about.html")
if nil != err {
glog.Error(err)
http.Error(w, err.Error(), 500)
return
}
t.Execute(w, model)
}
// Main.
func main() {
runtime.GOMAXPROCS(conf.Wide.MaxProcs)
initMime()
defer glog.Flush()
// IDE
http.HandleFunc("/", handlerWrapper(indexHandler))
http.HandleFunc("/start", handlerWrapper(startHandler))
http.HandleFunc("/about", handlerWrapper(aboutHandler))
http.HandleFunc("/keyboard_shortcuts", handlerWrapper(keyboardShortcutsHandler))
// static resources
http.Handle("/static/", http.StripPrefix("/static/", http.FileServer(http.Dir("static"))))
serveSingle("/favicon.ico", "./static/favicon.ico")
// workspaces
for _, user := range conf.Wide.Users {
http.Handle("/workspace/"+user.Name+"/",
http.StripPrefix("/workspace/"+user.Name+"/", http.FileServer(http.Dir(user.GetWorkspace()))))
}
// session
http.HandleFunc("/session/ws", handlerWrapper(session.WSHandler))
http.HandleFunc("/session/save", handlerWrapper(session.SaveContent))
// run
http.HandleFunc("/build", handlerWrapper(output.BuildHandler))
http.HandleFunc("/run", handlerWrapper(output.RunHandler))
http.HandleFunc("/stop", handlerWrapper(output.StopHandler))
http.HandleFunc("/go/test", handlerWrapper(output.GoTestHandler))
http.HandleFunc("/go/get", handlerWrapper(output.GoGetHandler))
http.HandleFunc("/go/install", handlerWrapper(output.GoInstallHandler))
http.HandleFunc("/output/ws", handlerWrapper(output.WSHandler))
// file tree
http.HandleFunc("/files", handlerWrapper(file.GetFiles))
http.HandleFunc("/file", handlerWrapper(file.GetFile))
http.HandleFunc("/file/save", handlerWrapper(file.SaveFile))
http.HandleFunc("/file/new", handlerWrapper(file.NewFile))
http.HandleFunc("/file/remove", handlerWrapper(file.RemoveFile))
http.HandleFunc("/file/rename", handlerWrapper(file.RenameFile))
http.HandleFunc("/file/search/text", handlerWrapper(file.SearchText))
http.HandleFunc("/file/find/name", handlerWrapper(file.Find))
// editor
http.HandleFunc("/editor/ws", handlerWrapper(editor.WSHandler))
http.HandleFunc("/go/fmt", handlerWrapper(editor.GoFmtHandler))
http.HandleFunc("/autocomplete", handlerWrapper(editor.AutocompleteHandler))
http.HandleFunc("/exprinfo", handlerWrapper(editor.GetExprInfoHandler))
http.HandleFunc("/find/decl", handlerWrapper(editor.FindDeclarationHandler))
http.HandleFunc("/find/usages", handlerWrapper(editor.FindUsagesHandler))
// shell
http.HandleFunc("/shell/ws", handlerWrapper(shell.WSHandler))
http.HandleFunc("/shell", handlerWrapper(shell.IndexHandler))
// notification
http.HandleFunc("/notification/ws", handlerWrapper(notification.WSHandler))
// user
http.HandleFunc("/login", handlerWrapper(session.LoginHandler))
http.HandleFunc("/logout", handlerWrapper(session.LogoutHandler))
http.HandleFunc("/signup", handlerWrapper(session.SignUpUser))
glog.V(0).Infof("Wide is running [%s]", conf.Wide.Server)
err := http.ListenAndServe(conf.Wide.Server, nil)
if err != nil {
glog.Fatal(err)
}
}
// handlerWrapper wraps the HTTP Handler for some common processes.
//
// 1. panic recover
// 2. request stopwatch
// 3. i18n
func handlerWrapper(f func(w http.ResponseWriter, r *http.Request)) func(w http.ResponseWriter, r *http.Request) {
handler := panicRecover(f)
handler = stopwatch(handler)
handler = i18nLoad(handler)
return handler
}
// i18nLoad wraps the i18n process.
func i18nLoad(handler func(w http.ResponseWriter, r *http.Request)) func(w http.ResponseWriter, r *http.Request) {
return func(w http.ResponseWriter, r *http.Request) {
i18n.Load()
handler(w, r)
}
}
// stopwatch wraps the request stopwatch process.
func stopwatch(handler func(w http.ResponseWriter, r *http.Request)) func(w http.ResponseWriter, r *http.Request) {
return func(w http.ResponseWriter, r *http.Request) {
start := time.Now()
defer func() {
glog.V(5).Infof("[%s] [%s]", r.RequestURI, time.Since(start))
}()
handler(w, r)
}
}
// panicRecover wraps the panic recover process.
func panicRecover(handler func(w http.ResponseWriter, r *http.Request)) func(w http.ResponseWriter, r *http.Request) {
return func(w http.ResponseWriter, r *http.Request) {
defer util.Recover()
handler(w, r)
}
}
// initMime initializes mime types.
//
// We can't get the mime types on some OS (such as Windows XP) by default, so initializes them here.
func initMime() {
mime.AddExtensionType(".css", "text/css")
mime.AddExtensionType(".js", "application/x-javascript")
mime.AddExtensionType(".json", "application/json")
}