perseus/handler/web/login.go

82 lines
1.7 KiB
Go

package web
import (
"fmt"
"html/template"
"log"
"net/http"
"time"
"tildegit.org/andinus/perseus/account"
"tildegit.org/andinus/perseus/storage"
)
// LoginHandler handles login.
func LoginHandler(w http.ResponseWriter, r *http.Request, db *storage.DB) {
p := Page{}
var err error
t, err := template.ParseFiles("web/templates/login.html")
if err != nil {
log.Printf("web/login.go: 500 Internal Server Error :: %s", err.Error())
http.Error(w, "500 Internal Server Error", http.StatusInternalServerError)
return
}
switch r.Method {
case http.MethodGet:
t.Execute(w, p)
case http.MethodPost:
if err = r.ParseForm(); err != nil {
log.Printf("web/login.go: 400 Bad Request :: %s", err.Error())
http.Error(w, "400 Bad Request", http.StatusBadRequest)
return
}
// Get form values
u := account.User{}
u.Username = r.FormValue("username")
u.Password = r.FormValue("password")
// Perform login
err = u.Login(db)
if err != nil {
log.Printf("web/login.go: %s :: %s",
"login failed",
err.Error())
error := []string{}
error = append(error,
fmt.Sprintf("Login failed"))
p.Error = error
t.Execute(w, p)
return
}
// Login successful, set token
cookie := http.Cookie{
Name: "token",
Value: u.Token,
// Expire the cookie after 16 days from
// current UTC time.
Expires: time.Now().UTC().Add(16 * 24 * time.Hour),
SameSite: http.SameSiteLaxMode,
HttpOnly: true,
}
http.SetCookie(w, &cookie)
success := []string{}
success = append(success,
fmt.Sprintf("Login successful"))
p.Success = success
t.Execute(w, p)
default:
w.WriteHeader(http.StatusMethodNotAllowed)
log.Printf("web/login.go: %v not allowed on %v", r.Method, r.URL)
}
}