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content / browser / file_system_access / file_system_access_manager_impl.h [blame]
// 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.
#ifndef CONTENT_BROWSER_FILE_SYSTEM_ACCESS_FILE_SYSTEM_ACCESS_MANAGER_IMPL_H_
#define CONTENT_BROWSER_FILE_SYSTEM_ACCESS_FILE_SYSTEM_ACCESS_MANAGER_IMPL_H_
#include <optional>
#include "base/containers/flat_set.h"
#include "base/containers/unique_ptr_adapters.h"
#include "base/files/file_path.h"
#include "base/functional/callback_forward.h"
#include "base/memory/raw_ptr.h"
#include "base/memory/weak_ptr.h"
#include "base/task/bind_post_task.h"
#include "base/task/sequenced_task_runner.h"
#include "base/thread_annotations.h"
#include "base/threading/sequence_bound.h"
#include "base/types/pass_key.h"
#include "base/unguessable_token.h"
#include "base/uuid.h"
#include "components/download/public/common/quarantine_connection.h"
#include "components/services/storage/public/mojom/file_system_access_context.mojom.h"
#include "content/browser/blob_storage/chrome_blob_storage_context.h"
#include "content/browser/file_system_access/file_system_access.pb.h"
#include "content/browser/file_system_access/file_system_access_lock_manager.h"
#include "content/browser/file_system_access/file_system_access_watcher_manager.h"
#include "content/browser/file_system_access/file_system_chooser.h"
#include "content/common/content_export.h"
#include "content/public/browser/file_system_access_entry_factory.h"
#include "content/public/browser/file_system_access_permission_context.h"
#include "content/public/browser/file_system_access_permission_grant.h"
#include "content/public/browser/global_routing_id.h"
#include "mojo/public/cpp/bindings/pending_receiver.h"
#include "mojo/public/cpp/bindings/pending_remote.h"
#include "mojo/public/cpp/bindings/receiver_set.h"
#include "mojo/public/cpp/bindings/remote.h"
#include "mojo/public/cpp/bindings/unique_receiver_set.h"
#include "storage/browser/file_system/file_system_operation_runner.h"
#include "storage/browser/file_system/file_system_url.h"
#include "third_party/blink/public/mojom/file_system_access/file_system_access_access_handle_host.mojom.h"
#include "third_party/blink/public/mojom/file_system_access/file_system_access_data_transfer_token.mojom.h"
#include "third_party/blink/public/mojom/file_system_access/file_system_access_file_delegate_host.mojom.h"
#include "third_party/blink/public/mojom/file_system_access/file_system_access_file_modification_host.mojom.h"
#include "third_party/blink/public/mojom/file_system_access/file_system_access_file_writer.mojom.h"
#include "third_party/blink/public/mojom/file_system_access/file_system_access_manager.mojom.h"
#include "third_party/blink/public/mojom/file_system_access/file_system_access_observer_host.mojom.h"
#include "third_party/blink/public/mojom/permissions/permission_status.mojom.h"
namespace blink {
class StorageKey;
} // namespace blink
namespace storage {
class FileSystemContext;
} // namespace storage
namespace content {
class FileSystemAccessAccessHandleHostImpl;
class FileSystemAccessDataTransferTokenImpl;
class FileSystemAccessDirectoryHandleImpl;
class FileSystemAccessFileHandleImpl;
class FileSystemAccessFileWriterImpl;
class FileSystemAccessTransferTokenImpl;
class StoragePartitionImpl;
// This is the browser side implementation of the
// FileSystemAccessManager mojom interface. This is the main entry point for
// the File System Access API in the browser process.Instances of this class are
// owned by StoragePartitionImpl.
//
// This class owns all the FileSystemAccessFileHandleImpl,
// FileSystemAccessDirectoryHandleImpl and FileSystemAccessTransferTokenImpl
// instances for a specific storage partition.
//
// This class is not thread safe, it must be constructed and used on the UI
// thread only.
class CONTENT_EXPORT FileSystemAccessManagerImpl
: public FileSystemAccessEntryFactory,
public blink::mojom::FileSystemAccessManager,
public storage::mojom::FileSystemAccessContext {
public:
using BindingContext = FileSystemAccessEntryFactory::BindingContext;
using PassKey = base::PassKey<FileSystemAccessManagerImpl>;
// State that is shared between handles that are derived from each other.
// Handles that are created through ChooseEntries or GetSandboxedFileSystem
// get new values for these properties, while any handles derived from those
// (i.e. children of a directory) will inherit these properties from their
// parent.
struct CONTENT_EXPORT SharedHandleState {
SharedHandleState(
scoped_refptr<FileSystemAccessPermissionGrant> read_grant,
scoped_refptr<FileSystemAccessPermissionGrant> write_grant);
SharedHandleState(const SharedHandleState& other);
~SharedHandleState();
// Should never be null. These are the read and write permissions for this
// handle.
const scoped_refptr<FileSystemAccessPermissionGrant> read_grant;
const scoped_refptr<FileSystemAccessPermissionGrant> write_grant;
};
// The caller is responsible for ensuring that `permission_context` outlives
// this instance.
FileSystemAccessManagerImpl(
scoped_refptr<storage::FileSystemContext> context,
scoped_refptr<ChromeBlobStorageContext> blob_context,
FileSystemAccessPermissionContext* permission_context,
bool off_the_record);
FileSystemAccessManagerImpl(const FileSystemAccessManagerImpl&) = delete;
FileSystemAccessManagerImpl& operator=(const FileSystemAccessManagerImpl&) =
delete;
void BindReceiver(
const BindingContext& binding_context,
mojo::PendingReceiver<blink::mojom::FileSystemAccessManager> receiver);
void BindInternalsReceiver(
mojo::PendingReceiver<storage::mojom::FileSystemAccessContext> receiver);
// Get the FileSystem with a custom bucket override. Must provide a binding
// context for this request.
void GetSandboxedFileSystem(
const BindingContext& binding_context,
const std::optional<storage::BucketLocator>& bucket,
const std::vector<std::string>& directory_path_components,
GetSandboxedFileSystemCallback callback);
// blink::mojom::FileSystemAccessManager:
void GetSandboxedFileSystem(GetSandboxedFileSystemCallback callback) override;
void GetSandboxedFileSystemForDevtools(
const std::vector<std::string>& directory_path_components,
GetSandboxedFileSystemCallback callback) override;
void ChooseEntries(blink::mojom::FilePickerOptionsPtr options,
ChooseEntriesCallback callback) override;
void GetFileHandleFromToken(
mojo::PendingRemote<blink::mojom::FileSystemAccessTransferToken> token,
mojo::PendingReceiver<blink::mojom::FileSystemAccessFileHandle>
file_handle_receiver) override;
void GetDirectoryHandleFromToken(
mojo::PendingRemote<blink::mojom::FileSystemAccessTransferToken> token,
mojo::PendingReceiver<blink::mojom::FileSystemAccessDirectoryHandle>
directory_handle_receiver) override;
void GetEntryFromDataTransferToken(
mojo::PendingRemote<blink::mojom::FileSystemAccessDataTransferToken>
token,
GetEntryFromDataTransferTokenCallback token_resolved_callback) override;
void BindObserverHost(
mojo::PendingReceiver<blink::mojom::FileSystemAccessObserverHost>
host_receiver) override;
// storage::mojom::FileSystemAccessContext:
void SerializeHandle(
mojo::PendingRemote<blink::mojom::FileSystemAccessTransferToken> token,
SerializeHandleCallback callback) override;
void DeserializeHandle(
const blink::StorageKey& storage_key,
const std::vector<uint8_t>& bits,
mojo::PendingReceiver<blink::mojom::FileSystemAccessTransferToken> token)
override;
void Clone(mojo::PendingReceiver<storage::mojom::FileSystemAccessContext>
receiver) override;
// FileSystemAccessEntryFactory:
blink::mojom::FileSystemAccessEntryPtr CreateFileEntryFromPath(
const BindingContext& binding_context,
const PathInfo& path_info,
UserAction user_action) override;
blink::mojom::FileSystemAccessEntryPtr CreateDirectoryEntryFromPath(
const BindingContext& binding_context,
const PathInfo& path_info,
UserAction user_action) override;
void ResolveTransferToken(
mojo::PendingRemote<blink::mojom::FileSystemAccessTransferToken>
transfer_token,
base::OnceCallback<void(std::optional<storage::FileSystemURL>)> callback)
override;
// Creates a new FileSystemAccessFileHandleImpl for a given url. Assumes the
// passed in URL is valid and represents a file.
mojo::PendingRemote<blink::mojom::FileSystemAccessFileHandle>
CreateFileHandle(const BindingContext& binding_context,
const storage::FileSystemURL& url,
const SharedHandleState& handle_state);
// Creates a new FileSystemAccessDirectoryHandleImpl for a given url. Assumes
// the passed in URL is valid and represents a directory.
mojo::PendingRemote<blink::mojom::FileSystemAccessDirectoryHandle>
CreateDirectoryHandle(const BindingContext& context,
const storage::FileSystemURL& url,
const SharedHandleState& handle_state);
// Attempts to take a lock of `lock_type` on `url`. Passes a handle of the
// lock to `callback` if successful. The lock is released when there are no
// handles to it.
//
// `binding_context` is the `BindingContext` of the frame that holds this
// handle.
//
// If there is an existing lock that is in contention with the `lock_type`, it
// will evict pages that hold the existing lock if they are all inactive (e.g.
// in the BFCache).
void TakeLock(const BindingContext& binding_context,
const storage::FileSystemURL& url,
FileSystemAccessLockManager::LockType lock_type,
FileSystemAccessLockManager::TakeLockCallback callback);
// Returns true if there is not an existing lock on `url` that is contentious
// with `lock_type`.
//
// This may return `false` but the same arguments would succeed for `TakeLock`
// since `TakeLock` may evict pages to take the lock.
bool IsContentious(const storage::FileSystemURL& url,
FileSystemAccessLockManager::LockType lock_type);
// Creates a new shared lock type for testing.
[[nodiscard]] FileSystemAccessLockManager::LockType
CreateSharedLockTypeForTesting() const;
// Gets the exclusive lock type.
[[nodiscard]] FileSystemAccessLockManager::LockType GetExclusiveLockType()
const;
// Gets the shared lock type for SyncAccessHandle's `readonly` mode.
[[nodiscard]] FileSystemAccessLockManager::LockType GetSAHReadOnlyLockType()
const;
// Gets the shared lock type for SyncAccessHandle's `readwrite-unsafe` mode.
[[nodiscard]] FileSystemAccessLockManager::LockType
GetSAHReadwriteUnsafeLockType() const;
// Gets the shared lock type for WritableFileStream's default `siloed` mode.
[[nodiscard]] FileSystemAccessLockManager::LockType GetWFSSiloedLockType()
const;
// Gets the `ancestor_lock_type_` for testing.
[[nodiscard]] FileSystemAccessLockManager::LockType
GetAncestorLockTypeForTesting() const;
// Gets a `WeakPtr` of the `FileSystemAccessLockManager` for testing if its
// been destroyed.
base::WeakPtr<FileSystemAccessLockManager> GetLockManagerWeakPtrForTesting()
const;
// Creates a new FileSystemAccessFileWriterImpl for a given target and
// swap file URLs. Assumes the passed in URLs are valid and represent files.
mojo::PendingRemote<blink::mojom::FileSystemAccessFileWriter>
CreateFileWriter(
const BindingContext& binding_context,
const storage::FileSystemURL& url,
const storage::FileSystemURL& swap_url,
scoped_refptr<FileSystemAccessLockManager::LockHandle> lock,
scoped_refptr<FileSystemAccessLockManager::LockHandle> swap_lock,
const SharedHandleState& handle_state,
bool auto_close);
// Returns a weak pointer to a newly created FileSystemAccessFileWriterImpl.
// Useful for tests
base::WeakPtr<FileSystemAccessFileWriterImpl> CreateFileWriter(
const BindingContext& binding_context,
const storage::FileSystemURL& url,
const storage::FileSystemURL& swap_url,
scoped_refptr<FileSystemAccessLockManager::LockHandle> lock,
scoped_refptr<FileSystemAccessLockManager::LockHandle> swap_lock,
const SharedHandleState& handle_state,
mojo::PendingReceiver<blink::mojom::FileSystemAccessFileWriter> receiver,
bool has_transient_user_activation,
bool auto_close,
download::QuarantineConnectionCallback quarantine_connection_callback);
// Creates a new FileSystemAccessHandleHostImpl for a given URL. Assumes `url`
// is valid and represents a file. The `file_delegate_receiver` is only valid
// in incognito mode.
mojo::PendingRemote<blink::mojom::FileSystemAccessAccessHandleHost>
CreateAccessHandleHost(
const storage::FileSystemURL& url,
mojo::PendingReceiver<blink::mojom::FileSystemAccessFileDelegateHost>
file_delegate_receiver,
mojo::PendingReceiver<blink::mojom::FileSystemAccessFileModificationHost>
file_modification_host_receiver,
int64_t file_size,
scoped_refptr<FileSystemAccessLockManager::LockHandle> lock,
base::ScopedClosureRunner on_close_callback);
// Create a transfer token for a specific file or directory.
void CreateTransferToken(
const FileSystemAccessFileHandleImpl& file,
mojo::PendingReceiver<blink::mojom::FileSystemAccessTransferToken>
receiver);
void CreateTransferToken(
const FileSystemAccessDirectoryHandleImpl& directory,
mojo::PendingReceiver<blink::mojom::FileSystemAccessTransferToken>
receiver);
// Creates an instance of FileSystemAccessDataTransferTokenImpl with
// `file_path` and `renderer_id` and attaches the instance to `receiver`. The
// `receiver`'s associated remote can be redeemed for a FileSystemAccessEntry
// object by a process with ID matching `renderer_id`.
void CreateFileSystemAccessDataTransferToken(
const PathInfo& path_info,
int renderer_id,
mojo::PendingReceiver<blink::mojom::FileSystemAccessDataTransferToken>
receiver);
// Given a mojom transfer token, looks up the token in our internal list of
// valid tokens. Calls the callback with the found token, or nullptr if no
// valid token was found.
using ResolvedTokenCallback =
base::OnceCallback<void(FileSystemAccessTransferTokenImpl*)>;
void ResolveTransferToken(
mojo::PendingRemote<blink::mojom::FileSystemAccessTransferToken> token,
ResolvedTokenCallback callback);
// Generates a unique serialization of a URL, which can be used to check
// handles for equality. This is not cryptographically secure.
std::string SerializeURL(const storage::FileSystemURL& url,
FileSystemAccessPermissionContext::HandleType type);
base::WeakPtr<FileSystemAccessManagerImpl> AsWeakPtr();
storage::FileSystemContext* context() {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
return context_.get();
}
ChromeBlobStorageContext* blob_context() { return blob_context_.get(); }
const base::SequenceBound<storage::FileSystemOperationRunner>&
operation_runner();
FileSystemAccessPermissionContext* permission_context() {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
return permission_context_;
}
FileSystemAccessWatcherManager& watcher_manager() {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
return watcher_manager_;
}
bool is_off_the_record() const { return off_the_record_; }
void SetPermissionContextForTesting(
FileSystemAccessPermissionContext* permission_context) {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
permission_context_ = permission_context;
}
void SetFilePickerResultForTesting(std::optional<PathInfo> result_entry) {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
auto_file_picker_result_for_test_ = result_entry;
}
// Remove `writer` from `writer_receivers_`. It is an error to try to remove
// a writer that doesn't exist.
void RemoveFileWriter(FileSystemAccessFileWriterImpl* writer);
// Remove `access_handle_host` from `access_handle_host_receivers_`. It is an
// error to try to remove an access handle that doesn't exist.
void RemoveAccessHandleHost(
FileSystemAccessAccessHandleHostImpl* access_handle_host);
// Remove `token` from `transfer_tokens_`. It is an error to try to remove
// a token that doesn't exist.
void RemoveToken(const base::UnguessableToken& token);
// Remove `token` from `data_transfer_tokens_`. It is an error to try to
// remove a token that doesn't exist.
void RemoveDataTransferToken(const base::UnguessableToken& token);
// This method may only be called on local and external file paths. Paths in a
// sandboxed file system should use the variant below.
//
// TODO(crbug.com/40198034): Consolidate these methods once the relationships
// of permission grants between handles are better specified.
SharedHandleState GetSharedHandleStateForNonSandboxedPath(
const PathInfo& path_info,
const blink::StorageKey& storage_key,
FileSystemAccessPermissionContext::HandleType handle_type,
FileSystemAccessPermissionContext::UserAction user_action);
// Same as above, but for paths in a sandboxed file system.
SharedHandleState GetSharedHandleStateForSandboxedPath();
// Return a stable unique ID of the FileSystemHandle in UUID version 4 format.
base::Uuid GetUniqueId(const FileSystemAccessFileHandleImpl& file);
base::Uuid GetUniqueId(const FileSystemAccessDirectoryHandleImpl& directory);
// Creates a FileSystemURL from `path_info`, which must
// correspond to a "real" file path and not a virtual path in a sandboxed file
// system.
storage::FileSystemURL CreateFileSystemURLFromPath(const PathInfo& path_info);
void Shutdown();
// The File System Access API should not give access to files that might
// trigger special handling from the operating system. This method is used to
// validate that all paths passed to GetFileHandle/GetDirectoryHandle are safe
// to be exposed to the web.
// TODO(crbug.com/40159607): Merge this with
// net::IsSafePortablePathComponent.
bool IsSafePathComponent(storage::FileSystemType type,
const url::Origin& origin,
const std::string& name);
// Invokes `method` on the correct sequence on the FileSystemOperationRunner,
// passing `args` and a callback to the method.
// The passed in `callback` is wrapped to make sure it is called on the
// correct sequence before passing it off to the `method`.
//
// Note that `callback` is passed to this method before other arguments,
// while the wrapped callback will be passed as last argument to the
// underlying FileSystemOperation `method`.
template <typename... MethodArgs,
typename... ArgsMinusCallback,
typename... CallbackArgs>
void DoFileSystemOperation(
const base::Location& from_here,
storage::FileSystemOperationRunner::OperationID (
storage::FileSystemOperationRunner::*method)(MethodArgs...),
base::OnceCallback<void(CallbackArgs...)> callback,
ArgsMinusCallback&&... args) {
// Wrap the passed in callback in one that posts a task back to the
// current sequence.
auto wrapped_callback =
base::BindPostTaskToCurrentDefault(std::move(callback));
// And then post a task to the sequence bound operation runner to run the
// provided method with the provided arguments (and the wrapped callback).
//
// FileSystemOperationRunner assumes context() is kept alive, to make sure
// this happens it is bound to a callback that otherwise does nothing.
operation_runner()
.AsyncCall(base::IgnoreResult(method), from_here)
.WithArgs(std::forward<ArgsMinusCallback>(args)...,
std::move(wrapped_callback))
.Then(base::BindOnce([](scoped_refptr<storage::FileSystemContext>) {},
base::WrapRefCounted(context())));
}
// Same as the previous overload, but using RepeatingCallback and
// BindRepeating instead.
template <typename... MethodArgs,
typename... ArgsMinusCallback,
typename... CallbackArgs>
void DoFileSystemOperation(
const base::Location& from_here,
storage::FileSystemOperationRunner::OperationID (
storage::FileSystemOperationRunner::*method)(MethodArgs...),
base::RepeatingCallback<void(CallbackArgs...)> callback,
ArgsMinusCallback&&... args) {
// Wrap the passed in callback in one that posts a task back to the
// current sequence.
auto wrapped_callback = base::BindRepeating(
[](scoped_refptr<base::SequencedTaskRunner> runner,
const base::RepeatingCallback<void(CallbackArgs...)>& callback,
CallbackArgs... args) {
runner->PostTask(
FROM_HERE,
base::BindOnce(callback, std::forward<CallbackArgs>(args)...));
},
base::SequencedTaskRunner::GetCurrentDefault(), std::move(callback));
// And then post a task to the sequence bound operation runner to run the
// provided method with the provided arguments (and the wrapped callback).
//
// FileSystemOperationRunner assumes context() is kept alive, to make sure
// this happens it is bound to a callback that otherwise does nothing.
operation_runner()
.AsyncCall(base::IgnoreResult(method), from_here)
.WithArgs(std::forward<ArgsMinusCallback>(args)...,
std::move(wrapped_callback))
.Then(base::BindOnce([](scoped_refptr<storage::FileSystemContext>) {},
base::WrapRefCounted(context())));
}
private:
friend class FileSystemAccessFileHandleImpl;
~FileSystemAccessManagerImpl() override;
void ResolveDefaultDirectory(
const BindingContext& context,
blink::mojom::FilePickerOptionsPtr options,
ChooseEntriesCallback callback,
FileSystemAccessTransferTokenImpl* resolved_directory_token);
void SetDefaultPathAndShowPicker(const BindingContext& context,
blink::mojom::FilePickerOptionsPtr options,
base::FilePath default_directory,
ChooseEntriesCallback callback,
bool default_directory_exists);
void DidOpenSandboxedFileSystem(
const BindingContext& binding_context,
GetSandboxedFileSystemCallback callback,
const storage::FileSystemURL& root,
const std::string& filesystem_name,
base::File::Error result,
const std::vector<std::string>& directory_path_components);
void DidResolveUrlAfterOpeningSandboxedFileSystem(
const BindingContext& binding_context,
GetSandboxedFileSystemCallback callback,
const storage::FileSystemURL& url,
base::File::Error result);
void DidChooseEntries(const BindingContext& binding_context,
const FileSystemChooser::Options& options,
const std::string& starting_directory_id,
bool request_directory_write_access,
ChooseEntriesCallback callback,
blink::mojom::FileSystemAccessErrorPtr result,
std::vector<PathInfo> entries);
void DidVerifySensitiveDirectoryAccess(
const BindingContext& binding_context,
const FileSystemChooser::Options& options,
const std::string& starting_directory_id,
bool request_directory_write_access,
ChooseEntriesCallback callback,
std::vector<PathInfo> entries,
FileSystemAccessPermissionContext::SensitiveEntryResult result);
void OnCheckPathsAgainstEnterprisePolicy(
const BindingContext& binding_context,
const FileSystemChooser::Options& options,
const std::string& starting_directory_id,
bool request_directory_write_access,
ChooseEntriesCallback callback,
std::vector<PathInfo> entries);
void DidCreateAndTruncateSaveFile(const BindingContext& binding_context,
const PathInfo& entry,
const storage::FileSystemURL& url,
ChooseEntriesCallback callback,
bool success);
void DidChooseDirectory(
const BindingContext& binding_context,
const PathInfo& entry,
ChooseEntriesCallback callback,
const SharedHandleState& shared_handle_state,
FileSystemAccessPermissionGrant::PermissionRequestOutcome outcome);
void CreateTransferTokenImpl(
const storage::FileSystemURL& url,
const blink::StorageKey& storage_key,
const SharedHandleState& handle_state,
FileSystemAccessPermissionContext::HandleType handle_type,
mojo::PendingReceiver<blink::mojom::FileSystemAccessTransferToken>
receiver);
void DoResolveTransferToken(
mojo::Remote<blink::mojom::FileSystemAccessTransferToken>,
ResolvedTokenCallback callback,
const base::UnguessableToken& token);
void DidResolveTransferTokenForFileHandle(
const BindingContext& binding_context,
mojo::PendingReceiver<blink::mojom::FileSystemAccessFileHandle>
file_handle_receiver,
FileSystemAccessTransferTokenImpl* resolved_token);
void DidResolveTransferTokenForDirectoryHandle(
const BindingContext& binding_context,
mojo::PendingReceiver<blink::mojom::FileSystemAccessDirectoryHandle>
directory_handle_receiver,
FileSystemAccessTransferTokenImpl* resolved_token);
void DidResolveForSerializeHandle(
SerializeHandleCallback callback,
FileSystemAccessTransferTokenImpl* resolved_token);
void DidGetSandboxedBucketForDeserializeHandle(
const FileSystemAccessHandleData& data,
mojo::PendingReceiver<blink::mojom::FileSystemAccessTransferToken> token,
const storage::FileSystemURL& url);
// FileSystemAccessFileModificationHosts may reserve too much capacity
// from the quota system. This function determines the file's actual size
// and corrects its capacity usage in the quota system.
void CleanupAccessHandleCapacityAllocation(const storage::FileSystemURL& url,
int64_t allocated_file_size,
base::OnceClosure callback);
// Performs the actual work of `CleanupAccessHandleCapacityAllocation()` after
// the file's size has been determined.
void CleanupAccessHandleCapacityAllocationImpl(
const storage::FileSystemURL& url,
int64_t allocated_file_size,
base::OnceClosure callback,
base::File::Error result,
const base::File::Info& file_info);
// Called after `CleanupAccessHandleCapacityAllocationImpl()` has completed.
// Removes `access_handle_host` from the set of active hosts.
void DidCleanupAccessHandleCapacityAllocation(
FileSystemAccessAccessHandleHostImpl* access_handle_host);
// Calls `token_resolved_callback` with a FileSystemAccessEntry object
// that's at the file path of the FileSystemAccessDataTransferToken with token
// value `token`. If no such token exists, calls
// `failed_token_redemption_callback`.
void ResolveDataTransferToken(
mojo::Remote<blink::mojom::FileSystemAccessDataTransferToken>,
const BindingContext& binding_context,
GetEntryFromDataTransferTokenCallback token_resolved_callback,
mojo::ReportBadMessageCallback failed_token_redemption_callback,
const base::UnguessableToken& token);
// Calls `token_resolved_callback` with a FileSystemAccessEntry representing
// the file/directory at `file_path`. Called by
// FileSystemAccessManager::ResolveDataTransferToken after it looks up
// whether the token's file path refers to a file or directory.
void ResolveDataTransferTokenWithFileType(
const BindingContext& binding_context,
const PathInfo& path_info,
const storage::FileSystemURL& url,
GetEntryFromDataTransferTokenCallback token_resolved_callback,
FileSystemAccessPermissionContext::HandleType file_type);
// Calls `token_resolved_callback` with a FileSystemAccessEntry representing
// the file/directory at `file_path`. Called by
// ResolveDataTransferTokenWithFileType after it verifies the token does not
// refer to a sensitive path.
void DidVerifySensitiveDirectoryAccessForDataTransfer(
const BindingContext& binding_context,
const PathInfo& path_info,
const storage::FileSystemURL& url,
FileSystemAccessPermissionContext::HandleType file_type,
GetEntryFromDataTransferTokenCallback token_resolved_callback,
FileSystemAccessPermissionContext::SensitiveEntryResult result);
// `root_permission_path` is path that the user selected in a file or
// directory picker which led to the site having access to this URL. All
// permissions related to the URL are based on this path.
std::string SerializeURLWithPermissionRoot(
const storage::FileSystemURL& url,
FileSystemAccessPermissionContext::HandleType type,
const base::FilePath& root_permission_path,
const std::string& display_name);
void FilePickerDeactivated(GlobalRenderFrameHostId global_rfh_id);
SEQUENCE_CHECKER(sequence_checker_);
const scoped_refptr<storage::FileSystemContext> context_;
const scoped_refptr<ChromeBlobStorageContext> blob_context_;
base::SequenceBound<storage::FileSystemOperationRunner> operation_runner_
GUARDED_BY_CONTEXT(sequence_checker_);
raw_ptr<FileSystemAccessPermissionContext> permission_context_
GUARDED_BY_CONTEXT(sequence_checker_) = nullptr;
// All the mojo receivers for this FileSystemAccessManager itself. Keeps
// track of associated origin and other state as well to not have to rely on
// the renderer passing that in, and to be able to do security checks around
// transferability etc.
mojo::ReceiverSet<blink::mojom::FileSystemAccessManager, BindingContext>
receivers_ GUARDED_BY_CONTEXT(sequence_checker_);
mojo::ReceiverSet<storage::mojom::FileSystemAccessContext>
internals_receivers_ GUARDED_BY_CONTEXT(sequence_checker_);
// The `lock_manager_` manager should be destroyed after `writer_receivers_`
// and `access_handle_host_receivers_`. The locks held by file writers and
// access handles dereference the lock manager on destruction, so it should
// outlive them.
scoped_refptr<FileSystemAccessLockManager> lock_manager_
GUARDED_BY_CONTEXT(sequence_checker_);
FileSystemAccessWatcherManager watcher_manager_
GUARDED_BY_CONTEXT(sequence_checker_);
// All the receivers for file and directory handles that have references to
// them.
mojo::UniqueReceiverSet<blink::mojom::FileSystemAccessFileHandle>
file_receivers_ GUARDED_BY_CONTEXT(sequence_checker_);
mojo::UniqueReceiverSet<blink::mojom::FileSystemAccessDirectoryHandle>
directory_receivers_ GUARDED_BY_CONTEXT(sequence_checker_);
base::flat_set<std::unique_ptr<FileSystemAccessFileWriterImpl>,
base::UniquePtrComparator>
writer_receivers_ GUARDED_BY_CONTEXT(sequence_checker_);
base::flat_set<std::unique_ptr<FileSystemAccessAccessHandleHostImpl>,
base::UniquePtrComparator>
access_handle_host_receivers_ GUARDED_BY_CONTEXT(sequence_checker_);
const bool off_the_record_;
// FileSystemAccessTransferTokenImpl owns a Transfer token receiver set and is
// removed from this map when all mojo connections are closed.
std::map<base::UnguessableToken,
std::unique_ptr<FileSystemAccessTransferTokenImpl>>
transfer_tokens_ GUARDED_BY_CONTEXT(sequence_checker_);
// This map is used to associate FileSystemAccessDataTransferTokenImpl
// instances with UnguessableTokens so that this class can find an associated
// FileSystemAccessDataTransferTokenImpl for a
// mojo::PendingRemote<FileSystemAccessDataTransferToken>.
std::map<base::UnguessableToken,
std::unique_ptr<FileSystemAccessDataTransferTokenImpl>>
data_transfer_tokens_ GUARDED_BY_CONTEXT(sequence_checker_);
// TODO(crbug.com/40852050): This is a temporary hack to put something
// that works behind a flag. Persist handle IDs such that they're stable
// across browsing sessions.
std::map<storage::FileSystemURL,
base::Uuid,
storage::FileSystemURL::Comparator>
file_ids_ GUARDED_BY_CONTEXT(sequence_checker_);
std::map<storage::FileSystemURL,
base::Uuid,
storage::FileSystemURL::Comparator>
directory_ids_ GUARDED_BY_CONTEXT(sequence_checker_);
std::set<GlobalRenderFrameHostId> rfhs_with_active_file_pickers_
GUARDED_BY_CONTEXT(sequence_checker_);
std::optional<PathInfo> auto_file_picker_result_for_test_
GUARDED_BY_CONTEXT(sequence_checker_);
// The shared lock type for SyncAccessHandle's `readonly` mode.
FileSystemAccessLockManager::LockType sah_read_only_lock_type_ =
lock_manager_->CreateSharedLockType();
// The shared lock type for SyncAccessHandle's `readwrite-unsafe` mode.
FileSystemAccessLockManager::LockType sah_readwrite_unsafe_lock_type_ =
lock_manager_->CreateSharedLockType();
// The shared lock type for WritableFileStream's default `siloed` mode.
FileSystemAccessLockManager::LockType wfs_siloed_lock_type_ =
lock_manager_->CreateSharedLockType();
base::WeakPtrFactory<FileSystemAccessManagerImpl> weak_factory_
GUARDED_BY_CONTEXT(sequence_checker_){this};
};
} // namespace content
#endif // CONTENT_BROWSER_FILE_SYSTEM_ACCESS_FILE_SYSTEM_ACCESS_MANAGER_IMPL_H_