forked from lettergram/neptune
/
main.go
191 lines (157 loc) · 4.42 KB
/
main.go
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package main
import (
"fmt"
"html/template"
"io/ioutil"
"labix.org/v2/mgo"
"labix.org/v2/mgo/bson"
"math/rand"
"net/http"
"strconv"
"strings"
"neptune/pkgs/codify"
"neptune/pkgs/cookies"
"neptune/pkgs/user"
"neptune/pkgs/bkz"
)
type Page struct {
Title string
Body template.HTML
UserData template.HTML
Bar template.HTML
}
// Loads a page for use
func loadPage(title string, r *http.Request) (*Page, error) {
filename, option, usr, bar := user.LoadUserInfo(title, r)
body, err := ioutil.ReadFile(filename)
if err != nil {
return nil, err
}
return &Page{Title: title, Body: template.HTML(body), UserData: (template.HTML(usr) + template.HTML(option)), Bar: template.HTML(bar)}, nil
}
// Shows a particular page
func viewHandler(w http.ResponseWriter, r *http.Request) {
title := r.URL.Path[len("/"):]
p, err := loadPage(title, r)
// wonky TODO make better
z := strings.Split(title, "/")
if z[0] == "books" {
http.ServeFile(w, r, title)
return
}
if err != nil && !cookies.IsLoggedIn(r) {
http.Redirect(w, r, "/home", http.StatusFound)
return
} else if err != nil {
http.Redirect(w, r, "/login-succeeded", http.StatusFound)
return
}
t, _ := template.ParseFiles("view.html")
t.Execute(w, p)
}
// Handles the users loggin and gives them a cookie for doing so
func loginHandler(w http.ResponseWriter, r *http.Request) {
usr := new(user.User)
usr.Email = r.FormValue("email")
pass := r.FormValue("pwd")
userProfile := user.FindUser(usr.Email)
if len(pass) > 0 {
usr.Password = codify.SHA(pass)
ok := user.CheckCredentials(usr.Email, usr.Password)
if ok {
usr = userProfile
user.CreateUserFile(usr.Email) // TODO: Createuserfile?
cookie := cookies.LoginCookie(usr.Email)
http.SetCookie(w, &cookie)
usr.SessionID = cookie.Value
_ = user.UpdateUser(usr)
http.Redirect(w, r, "/login-succeeded", http.StatusFound)
} else {
http.Redirect(w, r, "/login-failed", http.StatusFound)
}
} else {
viewHandler(w, r)
}
}
// Registers the new user
func registerHandler(w http.ResponseWriter, r *http.Request) {
usr := new(user.User)
usr.Email = r.FormValue("email")
pass := r.FormValue("pwd")
if len(pass) > 0 {
usr.Password = codify.SHA(pass)
if user.DoesAccountExist(usr.Email) {
http.Redirect(w, r, "/account-exists", http.StatusFound)
} else {
ok := user.CreateAccount(usr)
if ok {
http.Redirect(w, r, "/success", http.StatusFound)
} else {
http.Redirect(w, r, "/failed", http.StatusFound)
}
}
} else {
viewHandler(w, r)
}
}
// Logs out the user, removes their cookie from the database
// TODO: clean up this function
func logoutHandler(w http.ResponseWriter, r *http.Request) {
cookie, err := r.Cookie("SessionID")
if err != nil {
fmt.Println(err)
return
}
result := new(user.User)
sessionID := cookie.Value
session, err := mgo.Dial("127.0.0.1:27017/")
if err != nil {
return
}
c := session.DB("test").C("users")
c.Find(bson.M{"sessionid": sessionID}).One(&result)
result.SessionID = result.Email + ":" + codify.SHA(result.SessionID+strconv.Itoa(rand.Intn(100000000)))
err = c.Update(bson.M{"email": result.Email}, result)
if err != nil {
fmt.Println(err)
}
http.Redirect(w, r, "/home", http.StatusFound)
}
// Adds a new book to the database/user
func bookHandler(w http.ResponseWriter, r *http.Request) {
// Parses username from the cookie
cookie, _ := r.Cookie("SessionID")
sessionID := cookie.Value
z := strings.Split(sessionID, ":")
username := z[0]
// Checks to see if user exists
if !user.DoesAccountExist(username) {
http.HandleFunc("/", viewHandler)
}
book := new(bkz.Book)
book.Title = r.FormValue("book")
book.Author = r.FormValue("author")
book.ISBN = r.FormValue("isbn")
book.Genre = r.FormValue("genre")
// isbn is being used as Id for simplicity
book.Id = book.ISBN
if len(book.Title) > 0 {
// Creates new book entry in database
ok := bkz.CreateBook(book)
// Redirects based on outcome and adds book to users collection
if ok && user.UpdateCollection(username, book) {
http.Redirect(w, r, "/add-book-success", http.StatusFound)
} else {
http.Redirect(w, r, "/add-book-failed", http.StatusFound)
}
viewHandler(w, r)
}
}
func main() {
http.HandleFunc("/login", loginHandler)
http.HandleFunc("/logout", logoutHandler)
http.HandleFunc("/register", registerHandler)
http.HandleFunc("/add-book", bookHandler)
http.HandleFunc("/", viewHandler)
http.ListenAndServe(":8080", nil)
}