File: prefilled_values_detector.cc

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// Copyright 2019 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "components/autofill/content/renderer/prefilled_values_detector.h"

#include "base/containers/fixed_flat_set.h"
#include "base/strings/string_util.h"

namespace autofill {

namespace {

constexpr auto kKnownUsernamePlaceholders =
    base::MakeFixedFlatSet<std::string_view>({
        "___.___.___-__",
        "+1",
        "3~15个字符,中文字符7个以内",
        "benutzername",
        "client id",
        "codice titolare",
        "digite seu cpf ou e-mail",
        "ds logon username",
        "email",
        "email address",
        "email masih kosong",
        "email/手機號碼",
        "e-mail/username",
        "e-mail address",
        "enter username",
        "enter user name",
        "identifiant",
        "kullanıcı adı",
        "kunden-id",
        "login",
        "nick",
        "nom d'usuari",
        "nom utilisateur",
        "rut",
        "siret",
        "this is usually your email address",
        "tu dni",
        "uid/用戶名/email",
        "uporabnik...",
        "user/codice",
        "user id",
        "user name",
        "username",
        "username or email",
        "username or email:",
        "username/email",
        "usuario",
        "your email address",
        "ååååmmddxxxx",
        "아이디 or @이하 모두 입력",
        "Имя",
        "Имя (логин)",
        "Логин",
        "Логин...",
        "Логин (e-mail)",
        "שם משתמש",
        "כתובת דוא''ל",
        "اسم العضو",
        "اسم المستخدم",
        "الاسم",
        "نام کاربری",
        "メールアドレス",
        "อีเมล",
        "用户名",
        "用户名/email",
        "邮箱/手机",
        "帳號",
        "請輸入身份證字號",
        "请用微博帐号登录",
        "请输入手机号或邮箱",
        "请输入邮箱或手机号",
        "邮箱/手机/展位号",
    });

}  // namespace

base::span<const std::string_view> KnownUsernamePlaceholders() {
  return kKnownUsernamePlaceholders;
}

bool PossiblePrefilledUsernameValue(const std::string& username_value,
                                    const std::string& possible_email_domain) {
  std::string normalized_username_value = base::ToLowerASCII(
      base::TrimWhitespaceASCII(username_value, base::TRIM_ALL));

  if (normalized_username_value.empty())
    return true;

  // Check whether the prefilled value looks like "@example.com",
  // "@mail.example.com" or other strings matching the regex
  // "^@.*possible_email_domain$" where the string possible_email_domain is
  // replaced with the value of |possible_email_domain|.
  if (normalized_username_value[0] == '@' && !possible_email_domain.empty() &&
      base::EndsWith(normalized_username_value, possible_email_domain,
                     base::CompareCase::SENSITIVE)) {
    return true;
  }

  return kKnownUsernamePlaceholders.contains(normalized_username_value);
}

}  // namespace autofill