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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.
#ifndef CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_PROVIDER_HOST_H_
#define CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_PROVIDER_HOST_H_
#include <set>
#include <vector>
#include "base/memory/ref_counted.h"
#include "base/memory/weak_ptr.h"
#include "content/browser/service_worker/service_worker_registration.h"
#include "content/common/content_export.h"
#include "content/common/service_worker/service_worker_types.h"
#include "content/public/common/request_context_frame_type.h"
#include "content/public/common/request_context_type.h"
#include "content/public/common/resource_type.h"
namespace IPC {
class Sender;
}
namespace storage {
class BlobStorageContext;
}
namespace content {
class ResourceRequestBody;
class ServiceWorkerContextCore;
class ServiceWorkerDispatcherHost;
class ServiceWorkerRequestHandler;
class ServiceWorkerVersion;
// This class is the browser-process representation of a service worker
// provider. There is a provider per document and the lifetime of this
// object is tied to the lifetime of its document in the renderer process.
// This class holds service worker state that is scoped to an individual
// document.
//
// Note this class can also host a running service worker, in which
// case it will observe resource loads made directly by the service worker.
class CONTENT_EXPORT ServiceWorkerProviderHost
: public NON_EXPORTED_BASE(ServiceWorkerRegistration::Listener),
public base::SupportsWeakPtr<ServiceWorkerProviderHost> {
public:
typedef base::Callback<void(bool)> FocusCallback;
ServiceWorkerProviderHost(int render_process_id,
int render_frame_id,
int provider_id,
base::WeakPtr<ServiceWorkerContextCore> context,
ServiceWorkerDispatcherHost* dispatcher_host);
virtual ~ServiceWorkerProviderHost();
int process_id() const { return render_process_id_; }
int provider_id() const { return provider_id_; }
int frame_id() const { return render_frame_id_; }
bool IsHostToRunningServiceWorker() {
return running_hosted_version_.get() != NULL;
}
ServiceWorkerVersion* controlling_version() const {
return controlling_version_.get();
}
ServiceWorkerVersion* active_version() const {
return associated_registration_.get() ?
associated_registration_->active_version() : NULL;
}
ServiceWorkerVersion* waiting_version() const {
return associated_registration_.get() ?
associated_registration_->waiting_version() : NULL;
}
ServiceWorkerVersion* installing_version() const {
return associated_registration_.get() ?
associated_registration_->installing_version() : NULL;
}
ServiceWorkerRegistration* associated_registration() const {
return associated_registration_.get();
}
// The running version, if any, that this provider is providing resource
// loads for.
ServiceWorkerVersion* running_hosted_version() const {
return running_hosted_version_.get();
}
void SetDocumentUrl(const GURL& url);
const GURL& document_url() const { return document_url_; }
void SetTopmostFrameUrl(const GURL& url);
const GURL& topmost_frame_url() const { return topmost_frame_url_; }
// Associates to |registration| to listen for its version change events.
void AssociateRegistration(ServiceWorkerRegistration* registration);
// Clears the associated registration and stop listening to it.
void DisassociateRegistration();
// Returns false if the version is not in the expected STARTING in our
// process state. That would be indicative of a bad IPC message.
bool SetHostedVersionId(int64 versions_id);
// Returns a handler for a request, the handler may return NULL if
// the request doesn't require special handling.
scoped_ptr<ServiceWorkerRequestHandler> CreateRequestHandler(
FetchRequestMode request_mode,
FetchCredentialsMode credentials_mode,
ResourceType resource_type,
RequestContextType request_context_type,
RequestContextFrameType frame_type,
base::WeakPtr<storage::BlobStorageContext> blob_storage_context,
scoped_refptr<ResourceRequestBody> body);
// Returns true if |registration| can be associated with this provider.
bool CanAssociateRegistration(ServiceWorkerRegistration* registration);
// For use by the ServiceWorkerControlleeRequestHandler to disallow
// new registration association while a navigation is occurring and
// an existing registration is being looked for.
void SetAllowAssociation(bool allow) { allow_association_ = allow; }
// Returns true if the context referred to by this host (i.e. |context_|) is
// still alive.
bool IsContextAlive();
// Dispatches message event to the document.
void PostMessage(const base::string16& message,
const std::vector<int>& sent_message_port_ids);
// Activates the WebContents associated with
// { render_process_id_, render_frame_id_ }.
// Runs the |callback| with the result in parameter describing whether the
// focusing action was successful.
void Focus(const FocusCallback& callback);
// Asks the renderer to send back the document information.
void GetClientInfo(int embedded_worker_id, int request_id);
// Adds reference of this host's process to the |pattern|, the reference will
// be removed in destructor.
void AddScopedProcessReferenceToPattern(const GURL& pattern);
// Methods to support cross site navigations.
void PrepareForCrossSiteTransfer();
void CompleteCrossSiteTransfer(
int new_process_id,
int new_frame_id,
int new_provider_id,
ServiceWorkerDispatcherHost* dispatcher_host);
ServiceWorkerDispatcherHost* dispatcher_host() const {
return dispatcher_host_;
}
private:
friend class ServiceWorkerProviderHostTest;
friend class ServiceWorkerWriteToCacheJobTest;
FRIEND_TEST_ALL_PREFIXES(ServiceWorkerContextRequestHandlerTest,
UpdateBefore24Hours);
FRIEND_TEST_ALL_PREFIXES(ServiceWorkerContextRequestHandlerTest,
UpdateAfter24Hours);
// ServiceWorkerRegistration::Listener overrides.
void OnRegistrationFailed(ServiceWorkerRegistration* registration) override;
void OnSkippedWaiting(ServiceWorkerRegistration* registration) override;
// Sets the controller version field to |version| or if |version| is NULL,
// clears the field.
void SetControllerVersionAttribute(ServiceWorkerVersion* version);
void SendAssociateRegistrationMessage();
// Increase/decrease this host's process reference for |pattern|.
void IncreaseProcessReference(const GURL& pattern);
void DecreaseProcessReference(const GURL& pattern);
int render_process_id_;
int render_frame_id_;
int provider_id_;
GURL document_url_;
GURL topmost_frame_url_;
std::vector<GURL> associated_patterns_;
scoped_refptr<ServiceWorkerRegistration> associated_registration_;
scoped_refptr<ServiceWorkerVersion> controlling_version_;
scoped_refptr<ServiceWorkerVersion> running_hosted_version_;
base::WeakPtr<ServiceWorkerContextCore> context_;
ServiceWorkerDispatcherHost* dispatcher_host_;
bool allow_association_;
DISALLOW_COPY_AND_ASSIGN(ServiceWorkerProviderHost);
};
} // namespace content
#endif // CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_PROVIDER_HOST_H_
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