third_party/WebKit/Source/modules/quota/DeprecatedStorageQuota.cpp

/*
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 * modification, are permitted provided that the following conditions are
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 *
 *     * Redistributions of source code must retain the above copyright
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 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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#include "modules/quota/DeprecatedStorageQuota.h"

#include "base/location.h"
#include "bindings/modules/v8/v8_storage_error_callback.h"
#include "bindings/modules/v8/v8_storage_quota_callback.h"
#include "bindings/modules/v8/v8_storage_usage_callback.h"
#include "core/dom/Document.h"
#include "core/dom/ExceptionCode.h"
#include "core/dom/ExecutionContext.h"
#include "modules/quota/DOMError.h"
#include "modules/quota/QuotaUtils.h"
#include "mojo/public/cpp/bindings/callback_helpers.h"
#include "platform/bindings/ScriptState.h"
#include "platform/weborigin/KURL.h"
#include "platform/weborigin/SecurityOrigin.h"
#include "public/platform/Platform.h"
#include "public/platform/TaskType.h"
#include "services/service_manager/public/cpp/interface_provider.h"

namespace blink {

using mojom::StorageType;

namespace {

StorageType GetStorageType(DeprecatedStorageQuota::Type type) {
  switch (type) {
    case DeprecatedStorageQuota::kTemporary:
      return StorageType::kTemporary;
    case DeprecatedStorageQuota::kPersistent:
      return StorageType::kPersistent;
    default:
      return StorageType::kUnknown;
  }
}

void DeprecatedQueryStorageUsageAndQuotaCallback(
    V8StorageUsageCallback* success_callback,
    V8StorageErrorCallback* error_callback,
    mojom::QuotaStatusCode status_code,
    int64_t usage_in_bytes,
    int64_t quota_in_bytes) {
  if (status_code != mojom::QuotaStatusCode::kOk) {
    if (error_callback) {
      error_callback->InvokeAndReportException(
          nullptr, DOMError::Create(static_cast<ExceptionCode>(status_code)));
    }
    return;
  }

  if (success_callback) {
    success_callback->InvokeAndReportException(nullptr, usage_in_bytes,
                                               quota_in_bytes);
  }
}

void RequestStorageQuotaCallback(V8StorageQuotaCallback* success_callback,
                                 V8StorageErrorCallback* error_callback,
                                 mojom::QuotaStatusCode status_code,
                                 int64_t usage_in_bytes,
                                 int64_t granted_quota_in_bytes) {
  if (status_code != mojom::QuotaStatusCode::kOk) {
    if (error_callback) {
      error_callback->InvokeAndReportException(
          nullptr, DOMError::Create(static_cast<ExceptionCode>(status_code)));
    }
    return;
  }

  if (success_callback) {
    success_callback->InvokeAndReportException(nullptr, granted_quota_in_bytes);
  }
}

}  // namespace

void DeprecatedStorageQuota::EnqueueStorageErrorCallback(
    ScriptState* script_state,
    V8StorageErrorCallback* error_callback,
    ExceptionCode exception_code) {
  if (!error_callback)
    return;

  ExecutionContext::From(script_state)
      ->GetTaskRunner(TaskType::kMiscPlatformAPI)
      ->PostTask(
          FROM_HERE,
          WTF::Bind(&V8StorageErrorCallback::InvokeAndReportException,
                    WrapPersistentCallbackFunction(error_callback), nullptr,
                    WrapPersistent(DOMError::Create(exception_code))));
}

DeprecatedStorageQuota::DeprecatedStorageQuota(Type type) : type_(type) {}

void DeprecatedStorageQuota::queryUsageAndQuota(
    ScriptState* script_state,
    V8StorageUsageCallback* success_callback,
    V8StorageErrorCallback* error_callback) {
  ExecutionContext* execution_context = ExecutionContext::From(script_state);
  DCHECK(execution_context);

  StorageType storage_type = GetStorageType(type_);
  if (storage_type != StorageType::kTemporary &&
      storage_type != StorageType::kPersistent) {
    // Unknown storage type is requested.
    EnqueueStorageErrorCallback(script_state, error_callback,
                                kNotSupportedError);
    return;
  }

  const SecurityOrigin* security_origin =
      execution_context->GetSecurityOrigin();
  if (security_origin->IsUnique()) {
    EnqueueStorageErrorCallback(script_state, error_callback,
                                kNotSupportedError);
    return;
  }

  auto callback = WTF::Bind(&DeprecatedQueryStorageUsageAndQuotaCallback,
                            WrapPersistentCallbackFunction(success_callback),
                            WrapPersistentCallbackFunction(error_callback));
  GetQuotaHost(execution_context)
      .QueryStorageUsageAndQuota(
          WrapRefCounted(security_origin), storage_type,
          mojo::WrapCallbackWithDefaultInvokeIfNotRun(
              std::move(callback), mojom::QuotaStatusCode::kErrorAbort, 0, 0));
}

void DeprecatedStorageQuota::requestQuota(
    ScriptState* script_state,
    unsigned long long new_quota_in_bytes,
    V8StorageQuotaCallback* success_callback,
    V8StorageErrorCallback* error_callback) {
  ExecutionContext* execution_context = ExecutionContext::From(script_state);
  DCHECK(execution_context);
  DCHECK(execution_context->IsDocument())
      << "Quota requests are not supported in workers";

  StorageType storage_type = GetStorageType(type_);
  if (storage_type != StorageType::kTemporary &&
      storage_type != StorageType::kPersistent) {
    // Unknown storage type is requested.
    EnqueueStorageErrorCallback(script_state, error_callback,
                                kNotSupportedError);
    return;
  }

  auto callback = WTF::Bind(&RequestStorageQuotaCallback,
                            WrapPersistentCallbackFunction(success_callback),
                            WrapPersistentCallbackFunction(error_callback));

  Document* document = ToDocument(execution_context);
  const SecurityOrigin* security_origin = document->GetSecurityOrigin();
  if (security_origin->IsUnique()) {
    // Unique origins cannot store persistent state.
    std::move(callback).Run(blink::mojom::QuotaStatusCode::kErrorAbort, 0, 0);
    return;
  }

  GetQuotaHost(execution_context)
      .RequestStorageQuota(
          WrapRefCounted(security_origin), storage_type, new_quota_in_bytes,
          mojo::WrapCallbackWithDefaultInvokeIfNotRun(
              std::move(callback), mojom::QuotaStatusCode::kErrorAbort, 0, 0));
}

mojom::blink::QuotaDispatcherHost& DeprecatedStorageQuota::GetQuotaHost(
    ExecutionContext* execution_context) {
  if (!quota_host_) {
    ConnectToQuotaDispatcherHost(execution_context,
                                 mojo::MakeRequest(&quota_host_));
  }
  return *quota_host_;
}

}  // namespace blink