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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/offline_pages/core/page_criteria.h"
#include "base/containers/contains.h"
#include "base/strings/string_number_conversions.h"
#include "components/offline_pages/core/offline_page_client_policy.h"
#include "components/offline_pages/core/offline_page_item.h"
#include "components/offline_pages/core/offline_page_item_utils.h"
namespace offline_pages {
PageCriteria::PageCriteria() = default;
PageCriteria::~PageCriteria() = default;
PageCriteria::PageCriteria(const PageCriteria&) = default;
PageCriteria::PageCriteria(PageCriteria&&) = default;
bool MeetsCriteria(const PageCriteria& criteria, const ClientId& client_id) {
if (criteria.client_ids &&
!base::Contains(criteria.client_ids.value(), client_id)) {
return false;
}
if (criteria.client_namespaces &&
!base::Contains(criteria.client_namespaces.value(),
client_id.name_space)) {
return false;
}
if (!criteria.guid.empty() && client_id.id != criteria.guid)
return false;
// Only fetches the policy if it will be needed.
if (criteria.exclude_tab_bound_pages || criteria.pages_for_tab_id ||
criteria.supported_by_downloads || criteria.lifetime_type) {
const OfflinePageClientPolicy& policy = GetPolicy(client_id.name_space);
if (criteria.exclude_tab_bound_pages &&
policy.is_restricted_to_tab_from_client_id) {
return false;
}
if (criteria.pages_for_tab_id &&
policy.is_restricted_to_tab_from_client_id) {
std::string tab_id_str =
base::NumberToString(criteria.pages_for_tab_id.value());
if (client_id.id != tab_id_str)
return false;
}
if (criteria.supported_by_downloads && !policy.is_supported_by_download) {
return false;
}
if (criteria.lifetime_type &&
criteria.lifetime_type.value() != policy.lifetime_type) {
return false;
}
}
return true;
}
bool MeetsCriteria(const PageCriteria& criteria, const OfflinePageItem& item) {
if (!MeetsCriteria(criteria, item.client_id))
return false;
if (criteria.file_size && item.file_size != criteria.file_size.value()) {
return false;
}
if (!criteria.digest.empty() && item.digest != criteria.digest) {
return false;
}
if (!criteria.request_origin.empty() &&
item.request_origin != criteria.request_origin) {
return false;
}
if (!criteria.url.is_empty() &&
!EqualsIgnoringFragment(criteria.url, item.url) &&
(item.original_url_if_different.is_empty() ||
!EqualsIgnoringFragment(criteria.url, item.original_url_if_different))) {
return false;
}
if (criteria.offline_ids &&
!base::Contains(criteria.offline_ids.value(), item.offline_id)) {
return false;
}
if (criteria.additional_criteria && !criteria.additional_criteria.Run(item)) {
return false;
}
return true;
}
std::vector<std::string> PotentiallyMatchingNamespaces(
const PageCriteria& criteria) {
std::vector<std::string> matching_namespaces;
if (criteria.supported_by_downloads || criteria.lifetime_type) {
std::vector<std::string> allowed_namespaces =
criteria.client_namespaces ? criteria.client_namespaces.value()
: GetAllPolicyNamespaces();
std::vector<std::string> filtered;
for (const std::string& name_space : allowed_namespaces) {
const OfflinePageClientPolicy& policy = GetPolicy(name_space);
if (criteria.supported_by_downloads && !policy.is_supported_by_download) {
continue;
}
if (criteria.lifetime_type &&
criteria.lifetime_type.value() != policy.lifetime_type) {
continue;
}
matching_namespaces.push_back(name_space);
}
} else if (criteria.client_namespaces) {
matching_namespaces = criteria.client_namespaces.value();
}
// no filter otherwise.
return matching_namespaces;
}
} // namespace offline_pages
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