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// Copyright 2013 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/chromeos/file_manager/fileapi_util.h"
#include "base/files/file_path.h"
#include "chrome/browser/chromeos/drive/file_system_util.h"
#include "chrome/browser/extensions/extension_service.h"
#include "chrome/browser/profiles/profile.h"
#include "content/public/browser/render_view_host.h"
#include "content/public/browser/site_instance.h"
#include "content/public/browser/storage_partition.h"
#include "extensions/browser/extension_system.h"
#include "net/base/escape.h"
#include "url/gurl.h"
#include "webkit/browser/fileapi/file_system_context.h"
#include "webkit/common/fileapi/file_system_util.h"
namespace file_manager {
namespace util {
namespace {
GURL ConvertRelativeFilePathToFileSystemUrl(const base::FilePath& relative_path,
const std::string& extension_id) {
GURL base_url = fileapi::GetFileSystemRootURI(
extensions::Extension::GetBaseURLFromExtensionId(extension_id),
fileapi::kFileSystemTypeExternal);
return GURL(base_url.spec() +
net::EscapeUrlEncodedData(relative_path.AsUTF8Unsafe(),
false)); // Space to %20 instead of +.
}
} // namespace
fileapi::FileSystemContext* GetFileSystemContextForExtensionId(
Profile* profile,
const std::string& extension_id) {
GURL site = extensions::ExtensionSystem::Get(profile)->
extension_service()->GetSiteForExtensionId(extension_id);
return content::BrowserContext::GetStoragePartitionForSite(profile, site)->
GetFileSystemContext();
}
fileapi::FileSystemContext* GetFileSystemContextForRenderViewHost(
Profile* profile,
content::RenderViewHost* render_view_host) {
content::SiteInstance* site_instance = render_view_host->GetSiteInstance();
return content::BrowserContext::GetStoragePartition(profile, site_instance)->
GetFileSystemContext();
}
base::FilePath ConvertDrivePathToRelativeFileSystemPath(
Profile* profile,
const std::string& extension_id,
const base::FilePath& drive_path) {
// "/special/drive-xxx"
base::FilePath path = drive::util::GetDriveMountPointPath(profile);
// appended with (|drive_path| - "drive").
drive::util::GetDriveGrandRootPath().AppendRelativePath(drive_path, &path);
base::FilePath relative_path;
ConvertAbsoluteFilePathToRelativeFileSystemPath(profile,
extension_id,
path,
&relative_path);
return relative_path;
}
GURL ConvertDrivePathToFileSystemUrl(Profile* profile,
const base::FilePath& drive_path,
const std::string& extension_id) {
const base::FilePath relative_path =
ConvertDrivePathToRelativeFileSystemPath(profile, extension_id,
drive_path);
if (relative_path.empty())
return GURL();
return ConvertRelativeFilePathToFileSystemUrl(relative_path, extension_id);
}
bool ConvertAbsoluteFilePathToFileSystemUrl(Profile* profile,
const base::FilePath& absolute_path,
const std::string& extension_id,
GURL* url) {
base::FilePath relative_path;
if (!ConvertAbsoluteFilePathToRelativeFileSystemPath(profile,
extension_id,
absolute_path,
&relative_path)) {
return false;
}
*url = ConvertRelativeFilePathToFileSystemUrl(relative_path, extension_id);
return true;
}
bool ConvertAbsoluteFilePathToRelativeFileSystemPath(
Profile* profile,
const std::string& extension_id,
const base::FilePath& absolute_path,
base::FilePath* virtual_path) {
ExtensionService* service =
extensions::ExtensionSystem::Get(profile)->extension_service();
// May be NULL during unit_tests.
if (!service)
return false;
// File browser APIs are meant to be used only from extension context, so the
// extension's site is the one in whose file system context the virtual path
// should be found.
GURL site = service->GetSiteForExtensionId(extension_id);
fileapi::ExternalFileSystemBackend* backend =
content::BrowserContext::GetStoragePartitionForSite(profile, site)->
GetFileSystemContext()->external_backend();
if (!backend)
return false;
// Find if this file path is managed by the external backend.
if (!backend->GetVirtualPath(absolute_path, virtual_path))
return false;
return true;
}
} // namespace util
} // namespace file_manager
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