// Redirects to LoginURL unless session value "user_id" is a nonzero integer.
//
// If "must_change_password" is set to true, any request for a path other than
// ChangePasswordPath is redirected to that path.
func MustLogin(h http.Handler) http.Handler {
return http.HandlerFunc(func(rw http.ResponseWriter, req *http.Request) {
userID := session.Int(req, "user_id", 0)
if userID == 0 {
session.AddFlash(req, session.Flash{
Severity: "error",
Msg: "You must log in to access this resource.",
})
RedirectWithReturn(req, 302, LoginURL)
return
}
mustChangePassword := session.Bool(req, "must_change_password", false)
if mustChangePassword && req.URL.Path != ChangePasswordPath {
session.AddFlash(req, session.Flash{
Severity: "success",
Msg: "You must change your password before proceeding.",
})
RedirectWithReturn(req, 302, ChangePasswordPath)
return
}
h.ServeHTTP(rw, req)
})
}
// Ensures that a user is not logged in. Session value "user_id" must be absent
// or zero. If a user is logged in, redirects to AfterLoginURL.
func MustNotLogin(h http.Handler) http.Handler {
return http.HandlerFunc(func(rw http.ResponseWriter, req *http.Request) {
userID := session.Int(req, "user_id", 0)
if userID != 0 {
ReturnRedirect(req, 302, AfterLoginURL)
return
}
h.ServeHTTP(rw, req)
})
}
func Auth_ChangePassword_POST(rw http.ResponseWriter, req *http.Request) {
userID := session.Int(req, "user_id", 0)
curPassword := req.PostFormValue("cur_password")
password := req.PostFormValue("password")
passwordConfirm := req.PostFormValue("password_confirm")
if password == passwordConfirm {
if len(password) >= 8 {
mustChangePassword := session.Bool(req, "must_change_password", false)
var err error
var passwordPlain string
if !mustChangePassword {
err = GetBackend(req).GetDatabase().QueryRow("SELECT password_plain FROM \"n_user\" WHERE node_id=$1", userID).Scan(&passwordPlain)
log.Panice(err)
_, err = passlib.Verify(curPassword, passwordPlain)
}
if err == nil {
newHash, err := passlib.Hash(password)
log.Panice(err)
newAK := make([]byte, 32)
rand.Read(newAK)
_, err = GetBackend(req).GetDatabase().Exec("UPDATE \"n_user\" SET password_plain=$1, ak=$2 WHERE node_id=$3", newHash, newAK, userID)
log.Panice(err)
session.Set(req, "user_ak", newAK)
if mustChangePassword {
session.Set(req, "must_change_password", false)
}
session.AddFlash(req, session.Flash{
Severity: "success",
Msg: "Password changed.",
})
miscctx.SeeOther(req, "/")
return
} else {
session.AddFlash(req, session.Flash{
Severity: "error",
Msg: "Password incorrect.",
})
}
} else {
session.AddFlash(req, session.Flash{
Severity: "error",
Msg: "Password must be at least 8 characters long.",
})
}
} else {
session.AddFlash(req, session.Flash{
Severity: "error",
Msg: "Passwords do not match.",
})
}
Auth_ChangePassword_GET(rw, req)
}
func Auth_ChangeEmail_POST(rw http.ResponseWriter, req *http.Request) {
userID := session.Int(req, "user_id", 0)
curPassword := req.PostFormValue("cur_password")
email := req.PostFormValue("email")
addr, err := mail.ParseAddress(email)
if err != nil || addr.Name != "" {
session.AddFlash(req, session.Flash{
Severity: "error",
Msg: "Invalid e. mail address.",
})
Auth_ChangeEmail_GET(rw, req)
return
}
var passwordPlain string
var oldEmail string
tx, err := GetBackend(req).GetDatabase().Begin()
log.Panice(err)
defer tx.Rollback()
err = tx.QueryRow("SELECT password_plain, email FROM \"n_user\" WHERE node_id=$1 LIMIT 1", userID).
Scan(&passwordPlain, &oldEmail)
log.Panice(err)
_, err = passlib.Verify(curPassword, passwordPlain)
if err != nil {
session.AddFlash(req, session.Flash{
Severity: "error",
Msg: "Passwords do not match.",
})
Auth_ChangeEmail_GET(rw, req)
return
}
//_, err = tx.Exec("INSERT INTO security_log (type,user_id,message) VALUES ($1,$2,$3)", "change_email", userID, fmt.Sprintf("%s -> %s", oldEmail, addr.Address))
//log.Panice(err)
_, err = tx.Exec("UPDATE \"n_user\" SET email=$1, email_verified='f' WHERE node_id=$2", addr.Address, userID)
if err != nil {
if perr, ok := err.(pgx.PgError); ok && perr.Code == "23505" { // unique constraint violation
session.AddFlash(req, session.Flash{
Severity: "error",
Msg: "That e. mail address is already in use.",
})
Auth_ChangeEmail_GET(rw, req)
return
} else {
log.Panice(err)
}
}
ak, _ := session.Get(req, "user_ak")
err = sendVerificationEmail(addr.Address, ak.([]byte), false)
log.Panice(err)
err = tx.Commit()
log.Panice(err)
session.AddFlash(req, session.Flash{
Severity: "success",
Msg: "E. mail address changed.",
})
miscctx.SeeOther(req, "/")
}
// Returns true iff user is logged in.
func (c *Ctx) IsLoggedIn() bool {
return session.Int(c.Req, "user_id", 0) != 0
}