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// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/android/offline_pages/offline_page_utils.h"
#include "base/strings/string_piece.h"
#include "base/strings/string_util.h"
#include "chrome/browser/android/offline_pages/offline_page_mhtml_archiver.h"
#include "chrome/browser/android/offline_pages/offline_page_model_factory.h"
#include "components/offline_pages/offline_page_feature.h"
#include "components/offline_pages/offline_page_item.h"
#include "components/offline_pages/offline_page_model.h"
#include "content/public/browser/browser_context.h"
#include "url/gurl.h"
namespace offline_pages {
namespace {
// Returns an offline page originated from the |online_url|.
const offline_pages::OfflinePageItem* GetOfflinePageForOnlineURL(
content::BrowserContext* browser_context,
const GURL& online_url) {
DCHECK(browser_context);
if (!offline_pages::IsOfflinePagesEnabled())
return nullptr;
offline_pages::OfflinePageModel* offline_page_model =
offline_pages::OfflinePageModelFactory::GetForBrowserContext(
browser_context);
if (!offline_page_model)
return nullptr;
return offline_page_model->GetPageByOnlineURL(online_url);
}
// Returns an offline page that is stored as the |offline_url|.
const offline_pages::OfflinePageItem* GetOfflinePageForOfflineURL(
content::BrowserContext* browser_context,
const GURL& offline_url) {
DCHECK(browser_context);
if (!offline_pages::IsOfflinePagesEnabled())
return nullptr;
// Note that we first check if the url likely points to an offline page
// before calling GetPageByOfflineURL in order to avoid unnecessary lookup
// cost.
if (!OfflinePageUtils::MightBeOfflineURL(offline_url))
return nullptr;
offline_pages::OfflinePageModel* offline_page_model =
offline_pages::OfflinePageModelFactory::GetForBrowserContext(
browser_context);
if (!offline_page_model)
return nullptr;
return offline_page_model->GetPageByOfflineURL(offline_url);
}
} // namespace
// static
bool OfflinePageUtils::MightBeOfflineURL(const GURL& url) {
// It has to be a file URL ending with .mhtml extension.
return url.is_valid() && url.SchemeIsFile() &&
base::EndsWith(url.spec(),
OfflinePageMHTMLArchiver::GetFileNameExtension(),
base::CompareCase::INSENSITIVE_ASCII);
}
// static
GURL OfflinePageUtils::GetOfflineURLForOnlineURL(
content::BrowserContext* browser_context,
const GURL& online_url) {
const offline_pages::OfflinePageItem* offline_page =
GetOfflinePageForOnlineURL(browser_context, online_url);
if (!offline_page)
return GURL();
return offline_page->GetOfflineURL();
}
// static
GURL OfflinePageUtils::GetOnlineURLForOfflineURL(
content::BrowserContext* browser_context,
const GURL& offline_url) {
const offline_pages::OfflinePageItem* offline_page =
GetOfflinePageForOfflineURL(browser_context, offline_url);
if (!offline_page)
return GURL();
return offline_page->url;
}
// static
int64_t OfflinePageUtils::GetBookmarkIdForOfflineURL(
content::BrowserContext* browser_context,
const GURL& offline_url) {
const offline_pages::OfflinePageItem* offline_page =
GetOfflinePageForOfflineURL(browser_context, offline_url);
if (!offline_page)
return -1;
return offline_page->bookmark_id;
}
// static
bool OfflinePageUtils::IsOfflinePage(content::BrowserContext* browser_context,
const GURL& offline_url) {
return GetOfflinePageForOfflineURL(browser_context, offline_url) != nullptr;
}
// static
bool OfflinePageUtils::HasOfflinePageForOnlineURL(
content::BrowserContext* browser_context,
const GURL& online_url) {
const offline_pages::OfflinePageItem* offline_page =
GetOfflinePageForOnlineURL(browser_context, online_url);
return offline_page && !offline_page->file_path.empty();
}
// static
const bool OfflinePageUtils::HasOfflinePages(
content::BrowserContext* browser_context) {
DCHECK(browser_context);
if (!offline_pages::IsOfflinePagesEnabled())
return false;
offline_pages::OfflinePageModel* offline_page_model =
offline_pages::OfflinePageModelFactory::GetForBrowserContext(
browser_context);
return offline_page_model->HasOfflinePages();
}
} // namespace offline_pages
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