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// Copyright 2023 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/policy/dlp/dialogs/files_policy_dialog_utils.h"
#include "ash/public/cpp/style/color_provider.h"
#include "ash/style/typography.h"
#include "base/files/file_path.h"
#include "base/notreached.h"
#include "chrome/browser/ash/policy/dlp/dialogs/files_policy_dialog.h"
#include "chrome/browser/enterprise/connectors/analysis/file_transfer_analysis_delegate.h"
#include "ui/views/accessibility/view_accessibility.h"
#include "ui/views/controls/link.h"
namespace policy::files_dialog_utils {
FilesPolicyDialog::BlockReason GetEnterpriseConnectorsBlockReason(
const enterprise_connectors::FileTransferAnalysisDelegate::
FileTransferAnalysisResult& result) {
CHECK(result.IsUnknown() || result.IsBlocked());
if (result.IsUnknown()) {
return FilesPolicyDialog::BlockReason::
kEnterpriseConnectorsUnknownScanResult;
}
// Blocked files without a tag may happen for several reasons including
// files too large to be scanned or encrypted files.
if (result.tag().empty() && result.final_result().has_value()) {
DCHECK(result.final_result().value() ==
enterprise_connectors::FinalContentAnalysisResult::
ENCRYPTED_FILES ||
result.final_result().value() ==
enterprise_connectors::FinalContentAnalysisResult::LARGE_FILES);
if (result.final_result().value() ==
enterprise_connectors::FinalContentAnalysisResult::ENCRYPTED_FILES) {
return FilesPolicyDialog::BlockReason::kEnterpriseConnectorsEncryptedFile;
}
if (result.final_result().value() ==
enterprise_connectors::FinalContentAnalysisResult::LARGE_FILES) {
return policy::FilesPolicyDialog::BlockReason::
kEnterpriseConnectorsLargeFile;
}
if (result.final_result().value() ==
enterprise_connectors::FinalContentAnalysisResult::FAIL_CLOSED) {
return policy::FilesPolicyDialog::BlockReason::
kEnterpriseConnectorsScanFailed;
}
NOTREACHED()
<< "Enterprise connector result representing a blocked transfer "
"without a tag but with an unexpected final result value.";
}
DCHECK(result.tag() == enterprise_connectors::kDlpTag ||
result.tag() == enterprise_connectors::kMalwareTag);
if (result.tag() == enterprise_connectors::kDlpTag) {
return policy::FilesPolicyDialog::BlockReason::
kEnterpriseConnectorsSensitiveData;
}
if (result.tag() == enterprise_connectors::kMalwareTag) {
return FilesPolicyDialog::BlockReason::kEnterpriseConnectorsMalware;
}
NOTREACHED() << "Enterprise connector result representing a blocked transfer "
"with an unexpected tag.";
}
policy::FilesPolicyDialog::Info GetDialogInfoForEnterpriseConnectorsBlockReason(
policy::FilesPolicyDialog::BlockReason reason,
const std::vector<base::FilePath>& paths,
const std::vector<
std::unique_ptr<enterprise_connectors::FileTransferAnalysisDelegate>>&
file_transfer_analysis_delegates) {
auto dialog_settings = policy::FilesPolicyDialog::Info::Error(reason, paths);
// Find the first valid delegate, since every delegate contains the same copy
// of custom messaging settings.
auto delegate = std::ranges::find_if(
file_transfer_analysis_delegates,
[](const std::unique_ptr<
enterprise_connectors::FileTransferAnalysisDelegate>& delegate) {
return delegate != nullptr;
});
if (delegate == file_transfer_analysis_delegates.end()) {
return dialog_settings;
}
std::string tag;
// Currently, only sensitive data and malware block reasons support custom
// admin defined dialog settings.
if (reason == policy::FilesPolicyDialog::BlockReason::
kEnterpriseConnectorsSensitiveData) {
tag = enterprise_connectors::kDlpTag;
} else if (reason == policy::FilesPolicyDialog::BlockReason::
kEnterpriseConnectorsMalware) {
tag = enterprise_connectors::kMalwareTag;
} else {
return dialog_settings;
}
// Override default values with admin defined ones.
dialog_settings.SetMessage(delegate->get()->GetCustomMessage(tag));
dialog_settings.SetLearnMoreURL(delegate->get()->GetCustomLearnMoreUrl(tag));
return dialog_settings;
}
void AddLearnMoreLink(const std::u16string& text,
const std::u16string& accessible_name,
const GURL& url,
views::View* view) {
views::Link* learn_more_link =
view->AddChildView(std::make_unique<views::Link>(text));
learn_more_link->SetCallback(base::BindRepeating(&dlp::OpenLearnMore, url));
learn_more_link->SetFontList(
ash::TypographyProvider::Get()->ResolveTypographyToken(
ash::TypographyToken::kCrosBody1));
learn_more_link->SetEnabledColor(
ash::ColorProvider::Get()->GetContentLayerColor(
ash::ColorProvider::ContentLayerType::kTextColorURL));
learn_more_link->GetViewAccessibility().SetName(accessible_name);
}
} // namespace policy::files_dialog_utils
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