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content / browser / service_worker / service_worker_process_manager.cc [blame]
// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "content/browser/service_worker/service_worker_process_manager.h"
#include <stddef.h>
#include <algorithm>
#include <utility>
#include "base/containers/contains.h"
#include "content/browser/process_lock.h"
#include "content/browser/service_worker/service_worker_context_wrapper.h"
#include "content/browser/site_instance_impl.h"
#include "content/browser/storage_partition_impl.h"
#include "content/public/browser/browser_task_traits.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/child_process_host.h"
#include "content/public/browser/render_process_host.h"
#include "content/public/browser/site_instance.h"
#include "content/public/browser/site_isolation_policy.h"
#include "content/public/common/content_client.h"
#include "url/gurl.h"
namespace content {
ServiceWorkerProcessManager::ServiceWorkerProcessManager()
: storage_partition_(nullptr),
process_id_for_test_(ChildProcessHost::kInvalidUniqueID),
new_process_id_for_test_(ChildProcessHost::kInvalidUniqueID),
force_new_process_for_test_(false) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
}
ServiceWorkerProcessManager::~ServiceWorkerProcessManager() {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
DCHECK(IsShutdown())
<< "Call Shutdown() before destroying |this|, so that racing method "
<< "invocations don't use a destroyed BrowserContext.";
// TODO(horo): Remove after collecting crash data.
// Temporary checks to verify that ServiceWorkerProcessManager doesn't prevent
// render process hosts from shutting down: crbug.com/639193
CHECK(worker_process_map_.empty());
}
void ServiceWorkerProcessManager::Shutdown() {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
// `StoragePartitionImpl` might be destroyed before `this` is destroyed. Set
// `storage_partition_` to nullptr to avoid holding a dangling ptr.
storage_partition_ = nullptr;
// In single-process mode, Shutdown() is called when deleting the default
// browser context, which is itself destroyed after the RenderProcessHost.
// The refcount decrement can be skipped anyway since there's only one
// process.
if (!RenderProcessHost::run_renderer_in_process()) {
for (const auto& it : worker_process_map_) {
if (it.second->HasProcess()) {
RenderProcessHost* process = it.second->GetProcess();
if (!process->AreRefCountsDisabled())
process->DecrementWorkerRefCount();
}
}
}
worker_process_map_.clear();
is_shutdown_ = true;
}
bool ServiceWorkerProcessManager::IsShutdown() {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
return is_shutdown_;
}
blink::ServiceWorkerStatusCode
ServiceWorkerProcessManager::AllocateWorkerProcess(
int embedded_worker_id,
const GURL& script_url,
network::mojom::CrossOriginEmbedderPolicyValue coep_value,
bool can_use_existing_process,
blink::mojom::AncestorFrameType ancestor_frame_type,
AllocatedProcessInfo* out_info) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
if (force_new_process_for_test_)
can_use_existing_process = false;
out_info->process_id = ChildProcessHost::kInvalidUniqueID;
out_info->start_situation = ServiceWorkerMetrics::StartSituation::UNKNOWN;
if (process_id_for_test_ != ChildProcessHost::kInvalidUniqueID) {
// Let tests specify the returned process ID.
int result = can_use_existing_process ? process_id_for_test_
: new_process_id_for_test_;
out_info->process_id = result;
out_info->start_situation =
ServiceWorkerMetrics::StartSituation::EXISTING_READY_PROCESS;
return blink::ServiceWorkerStatusCode::kOk;
}
if (IsShutdown()) {
return blink::ServiceWorkerStatusCode::kErrorAbort;
}
DCHECK(!base::Contains(worker_process_map_, embedded_worker_id))
<< embedded_worker_id << " already has a process allocated";
// Create a SiteInstance to get the renderer process from.
//
// TODO(alexmos): Support CrossOriginIsolated for guests.
DCHECK(storage_partition_);
const bool is_guest = storage_partition_->is_guest();
const bool is_fenced =
ancestor_frame_type == blink::mojom::AncestorFrameType::kFencedFrame &&
SiteIsolationPolicy::IsProcessIsolationForFencedFramesEnabled();
const bool is_coop_coep_cross_origin_isolated =
!is_guest && network::CompatibleWithCrossOriginIsolated(coep_value);
UrlInfo url_info(
UrlInfoInit(script_url)
.WithStoragePartitionConfig(storage_partition_->GetConfig())
.WithWebExposedIsolationInfo(
is_coop_coep_cross_origin_isolated
? WebExposedIsolationInfo::CreateIsolated(
url::Origin::Create(script_url))
: WebExposedIsolationInfo::CreateNonIsolated()));
scoped_refptr<SiteInstanceImpl> site_instance =
SiteInstanceImpl::CreateForServiceWorker(
storage_partition_->browser_context(), url_info,
can_use_existing_process, is_guest, is_fenced);
// Get the process from the SiteInstance.
RenderProcessHost* rph = site_instance->GetProcess();
DCHECK(!storage_partition_ ||
rph->InSameStoragePartition(storage_partition_));
// Let the embedder grant the worker process access to origins if the worker
// is locked to the same origin as the worker.
if (rph->GetProcessLock().MatchesOrigin(url::Origin::Create(script_url))) {
GetContentClient()
->browser()
->GrantAdditionalRequestPrivilegesToWorkerProcess(rph->GetID(),
script_url);
}
ServiceWorkerMetrics::StartSituation start_situation;
if (!rph->IsInitializedAndNotDead()) {
// IsInitializedAndNotDead() is false means that Init() has not been called
// or the process has been killed.
start_situation = ServiceWorkerMetrics::StartSituation::NEW_PROCESS;
} else if (!rph->IsReady()) {
start_situation =
ServiceWorkerMetrics::StartSituation::EXISTING_UNREADY_PROCESS;
} else {
start_situation =
ServiceWorkerMetrics::StartSituation::EXISTING_READY_PROCESS;
}
if (!rph->Init()) {
LOG(ERROR) << "Couldn't start a new process!";
return blink::ServiceWorkerStatusCode::kErrorProcessNotFound;
}
worker_process_map_.emplace(embedded_worker_id, std::move(site_instance));
if (!rph->AreRefCountsDisabled())
rph->IncrementWorkerRefCount();
out_info->process_id = rph->GetID();
out_info->start_situation = start_situation;
return blink::ServiceWorkerStatusCode::kOk;
}
void ServiceWorkerProcessManager::ReleaseWorkerProcess(int embedded_worker_id) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
if (process_id_for_test_ != ChildProcessHost::kInvalidUniqueID) {
// Unittests don't increment or decrement the worker refcount of a
// RenderProcessHost.
return;
}
if (IsShutdown()) {
// Shutdown already released all instances.
DCHECK(worker_process_map_.empty());
return;
}
auto it = worker_process_map_.find(embedded_worker_id);
// ReleaseWorkerProcess could be called for a nonexistent worker id, for
// example, when request to start a worker is aborted on the IO thread during
// process allocation that is failed on the UI thread.
if (it == worker_process_map_.end())
return;
if (it->second->HasProcess()) {
RenderProcessHost* process = it->second->GetProcess();
if (!process->AreRefCountsDisabled())
process->DecrementWorkerRefCount();
}
worker_process_map_.erase(it);
}
base::WeakPtr<ServiceWorkerProcessManager>
ServiceWorkerProcessManager::GetWeakPtr() {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
return weak_ptr_factory_.GetWeakPtr();
}
SiteInstance* ServiceWorkerProcessManager::GetSiteInstanceForWorker(
int embedded_worker_id) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
auto it = worker_process_map_.find(embedded_worker_id);
if (it == worker_process_map_.end())
return nullptr;
return it->second.get();
}
} // namespace content
namespace std {
// Destroying ServiceWorkerProcessManagers only on the UI thread allows the
// member WeakPtr to safely guard the object's lifetime when used on that
// thread.
void default_delete<content::ServiceWorkerProcessManager>::operator()(
content::ServiceWorkerProcessManager* ptr) const {
content::GetUIThreadTaskRunner({})->DeleteSoon(FROM_HERE, ptr);
}
} // namespace std