chrome/browser/ash/input_method/ime_rules_config.cc

// Copyright 2021 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "chrome/browser/ash/input_method/ime_rules_config.h"

#include "base/strings/string_piece.h"
#include "base/strings/string_util.h"
#include "net/base/registry_controlled_domains/registry_controlled_domain.h"
#include "url/url_util.h"

namespace ash {
namespace input_method {
namespace {

// The default denylist of domains that will turn off auto_correct feature.
const char* kDefaultAutocorrectDomainDenylist[] = {
    "amazon",
    "b.corp.google",
    "buganizer.corp.google",
    "cider.corp.google",
    "classroom.google",
    "desmos",
    "docs.google",
    "facebook",
    "instagram",
    "outlook.live",
    "outlook.office",
    "quizlet",
    "whatsapp",
    "youtube",
};
}  // namespace

// Checks if domain is a sub-domain of url
bool IsSubDomain(const GURL& url, const base::StringPiece domain) {
  const size_t registryLength =
      net::registry_controlled_domains::GetRegistryLength(
          url, net::registry_controlled_domains::EXCLUDE_UNKNOWN_REGISTRIES,
          net::registry_controlled_domains::EXCLUDE_PRIVATE_REGISTRIES);
  if (registryLength == 0) {
    return false;
  }
  const base::StringPiece urlContent = url.host_piece();
  const base::StringPiece urlDomain =
      urlContent.substr(0, urlContent.length() - registryLength - 1);

  return url::DomainIs(urlDomain, domain);
}

// Checks if url belongs to domain and has the path_prefix
bool IsSubDomainWithPathPrefix(const GURL& url,
                               const base::StringPiece domain,
                               const base::StringPiece path_prefix) {
  return IsSubDomain(url, domain) && url.has_path() &&
         base::StartsWith(url.path(), path_prefix);
}

bool IsAutoCorrectDisabled(const TextFieldContextualInfo& info) {
  // Check the default domain denylist rules.
  for (const char* domain : kDefaultAutocorrectDomainDenylist) {
    if (IsSubDomain(info.tab_url, domain)) {
      return true;
    }
  }
  return false;
}
}  // namespace input_method
}  // namespace ash