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// Copyright 2022 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
module private_aggregation_internals.mojom;
import "url/mojom/url.mojom";
import "mojo/public/mojom/base/int128.mojom";
struct AggregatableReportRequestID {
int64 value;
};
// Due to dependency issues, this is duplicated from
// `content.mojom.AggregatableReportHistogramContribution`.
struct AggregatableHistogramContribution {
mojo_base.mojom.Uint128 bucket;
int32 value;
};
enum ReportStatus {
kPending,
kSent,
kFailedToAssemble,
kFailedToSend,
};
// Struct containing aggregatable report data.
struct WebUIAggregatableReport {
// Null indicates a report that wasn't stored/scheduled.
AggregatableReportRequestID? id;
// Javascript convention for times, a number of milliseconds since the epoch.
double report_time;
string api_identifier;
string api_version;
url.mojom.Url report_url;
array<AggregatableHistogramContribution> contributions;
ReportStatus status;
// JSON string.
string report_body;
};
// Observer for events relevant to the private aggregation internals WebUI.
interface Observer {
// Called when the reports in storage changed, indicating that the observer
// should call `Handler::GetReports()`.
OnRequestStorageModified();
// Called when a report is handled, regardless of success.
OnReportHandled(WebUIAggregatableReport report);
};
// Mojo interface used for communication between a WebUI and the storage layer
// for aggregation service.
interface Handler {
// Returns all reports contained in storage, including those that are
// actively being sent.
GetReports() => (array<WebUIAggregatableReport> reports);
// Sends the given reports, ignoring delay, returning when the operation has
// been completed and the reports have been cleared from storage.
SendReports(array<AggregatableReportRequestID> ids) => ();
// Deletes all persisted data for the aggregation service and private
// aggregation, returning when the operation has been completed.
ClearStorage() => ();
};
// Factory for Observer and Handler.
interface Factory {
// Binds the observer and handler.
Create(pending_remote<Observer> observer,
pending_receiver<Handler> handler);
};
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