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forgejo/routers/web/auth/password.go
zeripath 61b89747ed
Provide the ability to set password hash algorithm parameters (#22942)
This PR refactors and improves the password hashing code within gitea
and makes it possible for server administrators to set the password
hashing parameters

In addition it takes the opportunity to adjust the settings for `pbkdf2`
in order to make the hashing a little stronger.

The majority of this work was inspired by PR #14751 and I would like to
thank @boppy for their work on this.

Thanks to @gusted for the suggestion to adjust the `pbkdf2` hashing
parameters.

Close #14751

---------

Signed-off-by: Andrew Thornton <art27@cantab.net>
Co-authored-by: delvh <dev.lh@web.de>
Co-authored-by: John Olheiser <john.olheiser@gmail.com>
Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>
2023-02-19 15:35:20 +08:00

346 lines
9.7 KiB
Go

// Copyright 2019 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package auth
import (
"errors"
"net/http"
"code.gitea.io/gitea/models/auth"
user_model "code.gitea.io/gitea/models/user"
"code.gitea.io/gitea/modules/auth/password"
"code.gitea.io/gitea/modules/base"
"code.gitea.io/gitea/modules/context"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/setting"
"code.gitea.io/gitea/modules/timeutil"
"code.gitea.io/gitea/modules/web"
"code.gitea.io/gitea/modules/web/middleware"
"code.gitea.io/gitea/routers/utils"
"code.gitea.io/gitea/services/forms"
"code.gitea.io/gitea/services/mailer"
)
var (
// tplMustChangePassword template for updating a user's password
tplMustChangePassword base.TplName = "user/auth/change_passwd"
tplForgotPassword base.TplName = "user/auth/forgot_passwd"
tplResetPassword base.TplName = "user/auth/reset_passwd"
)
// ForgotPasswd render the forget password page
func ForgotPasswd(ctx *context.Context) {
ctx.Data["Title"] = ctx.Tr("auth.forgot_password_title")
if setting.MailService == nil {
log.Warn(ctx.Tr("auth.disable_forgot_password_mail_admin"))
ctx.Data["IsResetDisable"] = true
ctx.HTML(http.StatusOK, tplForgotPassword)
return
}
ctx.Data["Email"] = ctx.FormString("email")
ctx.Data["IsResetRequest"] = true
ctx.HTML(http.StatusOK, tplForgotPassword)
}
// ForgotPasswdPost response for forget password request
func ForgotPasswdPost(ctx *context.Context) {
ctx.Data["Title"] = ctx.Tr("auth.forgot_password_title")
if setting.MailService == nil {
ctx.NotFound("ForgotPasswdPost", nil)
return
}
ctx.Data["IsResetRequest"] = true
email := ctx.FormString("email")
ctx.Data["Email"] = email
u, err := user_model.GetUserByEmail(ctx, email)
if err != nil {
if user_model.IsErrUserNotExist(err) {
ctx.Data["ResetPwdCodeLives"] = timeutil.MinutesToFriendly(setting.Service.ResetPwdCodeLives, ctx.Locale)
ctx.Data["IsResetSent"] = true
ctx.HTML(http.StatusOK, tplForgotPassword)
return
}
ctx.ServerError("user.ResetPasswd(check existence)", err)
return
}
if !u.IsLocal() && !u.IsOAuth2() {
ctx.Data["Err_Email"] = true
ctx.RenderWithErr(ctx.Tr("auth.non_local_account"), tplForgotPassword, nil)
return
}
if setting.CacheService.Enabled && ctx.Cache.IsExist("MailResendLimit_"+u.LowerName) {
ctx.Data["ResendLimited"] = true
ctx.HTML(http.StatusOK, tplForgotPassword)
return
}
mailer.SendResetPasswordMail(u)
if setting.CacheService.Enabled {
if err = ctx.Cache.Put("MailResendLimit_"+u.LowerName, u.LowerName, 180); err != nil {
log.Error("Set cache(MailResendLimit) fail: %v", err)
}
}
ctx.Data["ResetPwdCodeLives"] = timeutil.MinutesToFriendly(setting.Service.ResetPwdCodeLives, ctx.Locale)
ctx.Data["IsResetSent"] = true
ctx.HTML(http.StatusOK, tplForgotPassword)
}
func commonResetPassword(ctx *context.Context) (*user_model.User, *auth.TwoFactor) {
code := ctx.FormString("code")
ctx.Data["Title"] = ctx.Tr("auth.reset_password")
ctx.Data["Code"] = code
if nil != ctx.Doer {
ctx.Data["user_signed_in"] = true
}
if len(code) == 0 {
ctx.Flash.Error(ctx.Tr("auth.invalid_code"))
return nil, nil
}
// Fail early, don't frustrate the user
u := user_model.VerifyUserActiveCode(code)
if u == nil {
ctx.Flash.Error(ctx.Tr("auth.invalid_code"))
return nil, nil
}
twofa, err := auth.GetTwoFactorByUID(u.ID)
if err != nil {
if !auth.IsErrTwoFactorNotEnrolled(err) {
ctx.Error(http.StatusInternalServerError, "CommonResetPassword", err.Error())
return nil, nil
}
} else {
ctx.Data["has_two_factor"] = true
ctx.Data["scratch_code"] = ctx.FormBool("scratch_code")
}
// Show the user that they are affecting the account that they intended to
ctx.Data["user_email"] = u.Email
if nil != ctx.Doer && u.ID != ctx.Doer.ID {
ctx.Flash.Error(ctx.Tr("auth.reset_password_wrong_user", ctx.Doer.Email, u.Email))
return nil, nil
}
return u, twofa
}
// ResetPasswd render the account recovery page
func ResetPasswd(ctx *context.Context) {
ctx.Data["IsResetForm"] = true
commonResetPassword(ctx)
if ctx.Written() {
return
}
ctx.HTML(http.StatusOK, tplResetPassword)
}
// ResetPasswdPost response from account recovery request
func ResetPasswdPost(ctx *context.Context) {
u, twofa := commonResetPassword(ctx)
if ctx.Written() {
return
}
if u == nil {
// Flash error has been set
ctx.HTML(http.StatusOK, tplResetPassword)
return
}
// Validate password length.
passwd := ctx.FormString("password")
if len(passwd) < setting.MinPasswordLength {
ctx.Data["IsResetForm"] = true
ctx.Data["Err_Password"] = true
ctx.RenderWithErr(ctx.Tr("auth.password_too_short", setting.MinPasswordLength), tplResetPassword, nil)
return
} else if !password.IsComplexEnough(passwd) {
ctx.Data["IsResetForm"] = true
ctx.Data["Err_Password"] = true
ctx.RenderWithErr(password.BuildComplexityError(ctx), tplResetPassword, nil)
return
} else if pwned, err := password.IsPwned(ctx, passwd); pwned || err != nil {
errMsg := ctx.Tr("auth.password_pwned")
if err != nil {
log.Error(err.Error())
errMsg = ctx.Tr("auth.password_pwned_err")
}
ctx.Data["IsResetForm"] = true
ctx.Data["Err_Password"] = true
ctx.RenderWithErr(errMsg, tplResetPassword, nil)
return
}
// Handle two-factor
regenerateScratchToken := false
if twofa != nil {
if ctx.FormBool("scratch_code") {
if !twofa.VerifyScratchToken(ctx.FormString("token")) {
ctx.Data["IsResetForm"] = true
ctx.Data["Err_Token"] = true
ctx.RenderWithErr(ctx.Tr("auth.twofa_scratch_token_incorrect"), tplResetPassword, nil)
return
}
regenerateScratchToken = true
} else {
passcode := ctx.FormString("passcode")
ok, err := twofa.ValidateTOTP(passcode)
if err != nil {
ctx.Error(http.StatusInternalServerError, "ValidateTOTP", err.Error())
return
}
if !ok || twofa.LastUsedPasscode == passcode {
ctx.Data["IsResetForm"] = true
ctx.Data["Err_Passcode"] = true
ctx.RenderWithErr(ctx.Tr("auth.twofa_passcode_incorrect"), tplResetPassword, nil)
return
}
twofa.LastUsedPasscode = passcode
if err = auth.UpdateTwoFactor(twofa); err != nil {
ctx.ServerError("ResetPasswdPost: UpdateTwoFactor", err)
return
}
}
}
var err error
if u.Rands, err = user_model.GetUserSalt(); err != nil {
ctx.ServerError("UpdateUser", err)
return
}
if err = u.SetPassword(passwd); err != nil {
ctx.ServerError("UpdateUser", err)
return
}
u.MustChangePassword = false
if err := user_model.UpdateUserCols(ctx, u, "must_change_password", "passwd", "passwd_hash_algo", "rands", "salt"); err != nil {
ctx.ServerError("UpdateUser", err)
return
}
log.Trace("User password reset: %s", u.Name)
ctx.Data["IsResetFailed"] = true
remember := len(ctx.FormString("remember")) != 0
if regenerateScratchToken {
// Invalidate the scratch token.
_, err = twofa.GenerateScratchToken()
if err != nil {
ctx.ServerError("UserSignIn", err)
return
}
if err = auth.UpdateTwoFactor(twofa); err != nil {
ctx.ServerError("UserSignIn", err)
return
}
handleSignInFull(ctx, u, remember, false)
if ctx.Written() {
return
}
ctx.Flash.Info(ctx.Tr("auth.twofa_scratch_used"))
ctx.Redirect(setting.AppSubURL + "/user/settings/security")
return
}
handleSignIn(ctx, u, remember)
}
// MustChangePassword renders the page to change a user's password
func MustChangePassword(ctx *context.Context) {
ctx.Data["Title"] = ctx.Tr("auth.must_change_password")
ctx.Data["ChangePasscodeLink"] = setting.AppSubURL + "/user/settings/change_password"
ctx.Data["MustChangePassword"] = true
ctx.HTML(http.StatusOK, tplMustChangePassword)
}
// MustChangePasswordPost response for updating a user's password after their
// account was created by an admin
func MustChangePasswordPost(ctx *context.Context) {
form := web.GetForm(ctx).(*forms.MustChangePasswordForm)
ctx.Data["Title"] = ctx.Tr("auth.must_change_password")
ctx.Data["ChangePasscodeLink"] = setting.AppSubURL + "/user/settings/change_password"
if ctx.HasError() {
ctx.HTML(http.StatusOK, tplMustChangePassword)
return
}
u := ctx.Doer
// Make sure only requests for users who are eligible to change their password via
// this method passes through
if !u.MustChangePassword {
ctx.ServerError("MustUpdatePassword", errors.New("cannot update password.. Please visit the settings page"))
return
}
if form.Password != form.Retype {
ctx.Data["Err_Password"] = true
ctx.RenderWithErr(ctx.Tr("form.password_not_match"), tplMustChangePassword, &form)
return
}
if len(form.Password) < setting.MinPasswordLength {
ctx.Data["Err_Password"] = true
ctx.RenderWithErr(ctx.Tr("auth.password_too_short", setting.MinPasswordLength), tplMustChangePassword, &form)
return
}
if !password.IsComplexEnough(form.Password) {
ctx.Data["Err_Password"] = true
ctx.RenderWithErr(password.BuildComplexityError(ctx), tplMustChangePassword, &form)
return
}
pwned, err := password.IsPwned(ctx, form.Password)
if pwned {
ctx.Data["Err_Password"] = true
errMsg := ctx.Tr("auth.password_pwned")
if err != nil {
log.Error(err.Error())
errMsg = ctx.Tr("auth.password_pwned_err")
}
ctx.RenderWithErr(errMsg, tplMustChangePassword, &form)
return
}
if err = u.SetPassword(form.Password); err != nil {
ctx.ServerError("UpdateUser", err)
return
}
u.MustChangePassword = false
if err := user_model.UpdateUserCols(ctx, u, "must_change_password", "passwd", "passwd_hash_algo", "salt"); err != nil {
ctx.ServerError("UpdateUser", err)
return
}
ctx.Flash.Success(ctx.Tr("settings.change_password_success"))
log.Trace("User updated password: %s", u.Name)
if redirectTo := ctx.GetCookie("redirect_to"); len(redirectTo) > 0 && !utils.IsExternalURL(redirectTo) {
middleware.DeleteRedirectToCookie(ctx.Resp)
ctx.RedirectToFirst(redirectTo)
return
}
ctx.Redirect(setting.AppSubURL + "/")
}