143 lignes
4 Kio
Go
143 lignes
4 Kio
Go
package userService
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import (
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"errors"
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"github.com/ewhal/nyaa/db"
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"github.com/ewhal/nyaa/model"
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formStruct "github.com/ewhal/nyaa/service/user/form"
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"github.com/ewhal/nyaa/util/modelHelper"
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"github.com/ewhal/nyaa/util/timeHelper"
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"github.com/gorilla/securecookie"
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"golang.org/x/crypto/bcrypt"
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"net/http"
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"strconv"
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"time"
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)
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const CookieName = "session"
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// If you want to keep login cookies between restarts you need to make these permanent
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var cookieHandler = securecookie.New(
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securecookie.GenerateRandomKey(64),
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securecookie.GenerateRandomKey(32))
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// Encoding & Decoding of the cookie value
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func DecodeCookie(cookie_value string) (uint, error) {
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value := make(map[string]string)
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err := cookieHandler.Decode(CookieName, cookie_value, &value)
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if err != nil {
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return 0, err
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}
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time_int, _ := strconv.ParseInt(value["t"], 10, 0)
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if timeHelper.IsExpired(time.Unix(time_int, 0)) {
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return 0, errors.New("Cookie is expired")
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}
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ret, err := strconv.ParseUint(value["u"], 10, 0)
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return uint(ret), err
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}
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func EncodeCookie(user_id uint) (string, error) {
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validUntil := timeHelper.FewDaysLater(7) // 1 week
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value := map[string]string{
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"u": strconv.FormatUint(uint64(user_id), 10),
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"t": strconv.FormatInt(validUntil.Unix(), 10),
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}
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return cookieHandler.Encode(CookieName, value)
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}
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func ClearCookie(w http.ResponseWriter) (int, error) {
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cookie := &http.Cookie{
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Name: CookieName,
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Value: "",
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Path: "/",
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HttpOnly: true,
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MaxAge: -1,
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}
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http.SetCookie(w, cookie)
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return http.StatusOK, nil
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}
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// SetCookieHandler sets the authentication cookie
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func SetCookieHandler(w http.ResponseWriter, email string, pass string) (int, error) {
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if email == "" || pass == "" {
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return http.StatusNotFound, errors.New("No username/password entered")
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}
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var user model.User
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// search by email or username
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isValidEmail, _ := formStruct.EmailValidation(email, formStruct.NewErrors())
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if isValidEmail {
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if db.ORM.Where("email = ?", email).First(&user).RecordNotFound() {
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return http.StatusNotFound, errors.New("User not found")
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}
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} else {
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if db.ORM.Where("username = ?", email).First(&user).RecordNotFound() {
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return http.StatusNotFound, errors.New("User not found")
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}
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}
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err := bcrypt.CompareHashAndPassword([]byte(user.Password), []byte(pass))
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if err != nil {
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return http.StatusUnauthorized, errors.New("Password incorrect")
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}
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if user.Status == -1 {
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return http.StatusUnauthorized, errors.New("Account banned")
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}
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encoded, err := EncodeCookie(user.ID)
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if err != nil {
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return http.StatusInternalServerError, err
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}
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cookie := &http.Cookie{
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Name: CookieName,
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Value: encoded,
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Path: "/",
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HttpOnly: true,
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}
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http.SetCookie(w, cookie)
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// also set response header for convenience
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w.Header().Set("X-Auth-Token", encoded)
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return http.StatusOK, nil
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}
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// RegisterHanderFromForm sets cookie from a RegistrationForm.
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func RegisterHanderFromForm(w http.ResponseWriter, registrationForm formStruct.RegistrationForm) (int, error) {
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username := registrationForm.Username // email isn't set at this point
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pass := registrationForm.Password
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return SetCookieHandler(w, username, pass)
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}
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// RegisterHandler sets a cookie when user registered.
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func RegisterHandler(w http.ResponseWriter, r *http.Request) (int, error) {
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var registrationForm formStruct.RegistrationForm
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modelHelper.BindValueForm(®istrationForm, r)
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return RegisterHanderFromForm(w, registrationForm)
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}
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// CurrentUser determines the current user from the request
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func CurrentUser(r *http.Request) (model.User, error) {
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var user model.User
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var encoded string
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encoded = r.Header.Get("X-Auth-Token")
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if len(encoded) == 0 {
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// check cookie instead
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cookie, err := r.Cookie(CookieName)
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if err != nil {
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return user, err
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}
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encoded = cookie.Value
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}
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user_id, err := DecodeCookie(encoded)
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if err != nil {
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return user, err
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}
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if db.ORM.Where("user_id = ?", user_id).First(&user).RecordNotFound() {
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return user, errors.New("User not found")
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}
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if user.Status == -1 {
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// recheck as user might've been banned in the meantime
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return user, errors.New("Account banned")
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}
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return user, nil
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}
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