package main import ( "crypto/md5" "labix.org/v2/mgo" "labix.org/v2/mgo/bson" "net/http" ) type aboutData struct { S Status } func aboutHandler(w http.ResponseWriter, r *http.Request) { var data aboutData data.S = GetStatus(w, r) data.S.About = true loadTemplate(w, "about", data) } func logoutHandler(w http.ResponseWriter, r *http.Request) { sess := GetSession(r) sess.LogOut() sess.Notify("Log out!", "Bye bye "+sess.User, "success") sess.Save(w, r) http.Redirect(w, r, "/", 307) } func loginHandler(coll *mgo.Collection) func(http.ResponseWriter, *http.Request) { return func(w http.ResponseWriter, r *http.Request) { if r.Method == "POST" { user := r.FormValue("user") pass := r.FormValue("pass") h := md5.New() hash := h.Sum(([]byte)(PASS_SALT + pass)) n, _ := coll.Find(bson.M{"user": user, "pass": hash}).Count() sess := GetSession(r) if n != 0 { sess.LogIn(user) sess.Notify("Successful login!", "Welcome "+user, "success") } else { sess.Notify("Invalid login!", "user or password invalid", "error") } sess.Save(w, r) } http.Redirect(w, r, r.Referer(), 307) } } type bookData struct { S Status Book Book } func bookHandler(coll *mgo.Collection) func(http.ResponseWriter, *http.Request) { return func(w http.ResponseWriter, r *http.Request) { var data bookData data.S = GetStatus(w, r) id := bson.ObjectIdHex(r.URL.Path[len("/book/"):]) books, _, err := GetBook(coll, bson.M{"_id": id}) if err != nil || len(books) == 0 { http.NotFound(w, r) return } data.Book = books[0] loadTemplate(w, "book", data) } } func fileHandler(path string) { h := http.FileServer(http.Dir(path[1:])) http.Handle(path, http.StripPrefix(path, h)) } type indexData struct { S Status Books []Book Count int Tags []string } func indexHandler(coll *mgo.Collection) func(http.ResponseWriter, *http.Request) { return func(w http.ResponseWriter, r *http.Request) { var data indexData /* get the tags */ tags, err := GetTags(coll) if err == nil { length := len(tags) if length > TAGS_DISPLAY { length = TAGS_DISPLAY } data.Tags = make([]string, length) for i, tag := range tags { if i == TAGS_DISPLAY { break /* display only 50 */ } if tag.Subject != "" { data.Tags[i] = tag.Subject } } } data.S = GetStatus(w, r) data.S.Home = true data.Books, data.Count, _ = GetBook(coll, bson.M{}, 6) loadTemplate(w, "index", data) } } func main() { session, err := mgo.Dial(DB_IP) if err != nil { panic(err) } defer session.Close() coll := session.DB(DB_NAME).C(BOOKS_COLL) userColl := session.DB(DB_NAME).C(USERS_COLL) newColl := session.DB(DB_NAME).C(NEW_BOOKS_COLL) http.HandleFunc("/book/", bookHandler(coll)) http.HandleFunc("/search/", searchHandler(coll)) http.HandleFunc("/upload/", uploadHandler(newColl)) http.HandleFunc("/login/", loginHandler(userColl)) http.HandleFunc("/logout/", logoutHandler) http.HandleFunc("/new/", newHandler(newColl)) http.HandleFunc("/delnew/", deleteHandler(newColl, "/new/")) http.HandleFunc("/store/", storeHandler(newColl, coll)) http.HandleFunc("/read/", readHandler(coll)) http.HandleFunc("/content/", contentHandler(coll)) http.HandleFunc("/readnew/", readHandler(newColl)) http.HandleFunc("/contentnew/", contentHandler(newColl)) http.HandleFunc("/edit/", editHandler(coll)) http.HandleFunc("/save/", saveHandler(coll)) http.HandleFunc("/delete/", deleteHandler(coll, "/")) http.HandleFunc("/about/", aboutHandler) fileHandler("/img/") fileHandler("/cover/") fileHandler("/books/") fileHandler("/css/") fileHandler("/js/") http.HandleFunc("/", indexHandler(coll)) http.ListenAndServe(":8080", nil) }