// 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.

syntax = "proto2";

package precache;

// Chrome requires this.
option optimize_for = LITE_RUNTIME;

// Information about a cacheable resource to be precached.
message PrecacheResource {
  // The URL of the resource. This field must always be present.
  optional string url = 1;
};

// A manifest of cacheable resources to be precached for a specific starting
// URL.
message PrecacheManifest {
  // List of resources that we predict that the user will need if they are
  // likely to fetch the starting URL.
  repeated PrecacheResource resource = 1;
};

message PrecacheConfigurationSettings {
  // The whitelist of starting URLs that are currently supported. Precaching
  // should only be attempted for starting URLs that are in this list.
  repeated string whitelisted_starting_url = 1;

  // The maximum rank of the user's most visited URLs to consider precaching
  // resources for, starting from 1. For example, a value of 10 means that only
  // URLs that are both in the user's top 10 most visited URLs and in the
  // whitelist will be considered as starting URLs for resource precaching.
  // This is specified by the server for testing purposes, so that we can
  // easily adjust how aggressively we precache resources.
  optional int64 maximum_rank_starting_url = 2 [default = 10];
};