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// Copyright 2014 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 COMPONENTS_DOMAIN_RELIABILITY_CONFIG_H_
#define COMPONENTS_DOMAIN_RELIABILITY_CONFIG_H_
#include <string>
#include <vector>
#include "base/compiler_specific.h"
#include "base/json/json_value_converter.h"
#include "base/memory/scoped_ptr.h"
#include "base/strings/string_piece.h"
#include "base/time/time.h"
#include "base/values.h"
#include "components/domain_reliability/domain_reliability_export.h"
#include "url/gurl.h"
namespace domain_reliability {
// The configuration that controls which requests are measured and reported,
// with what frequency, and where the beacons are uploaded.
class DOMAIN_RELIABILITY_EXPORT DomainReliabilityConfig {
public:
static const size_t kInvalidResourceIndex;
// A particular resource named in the config -- includes a set of URL
// patterns that the resource will match, along with sample rates for
// successful and unsuccessful requests.
class DOMAIN_RELIABILITY_EXPORT Resource {
public:
Resource();
~Resource();
// Returns whether |url_string| matches at least one of the |url_patterns|
// in this Resource.
bool MatchesUrl(const GURL& url) const;
// Returns whether a request (that was successful if |success| is true)
// should be reported with a full beacon. (The output is non-deterministic;
// it |success_sample_rate| or |failure_sample_rate| to a random number.)
bool DecideIfShouldReportRequest(bool success) const;
// Registers with the JSONValueConverter so it will know how to convert the
// JSON for a named resource into the struct.
static void RegisterJSONConverter(
base::JSONValueConverter<Resource>* converter);
bool IsValid() const;
// Name of the Resource, as will be reported in uploads.
std::string name;
// List of URL patterns to assign requests to this Resource.
ScopedVector<std::string> url_patterns;
// Sample rates for successful and unsuccessful requests, respectively.
// 0.0 reports no requests, and 1.0 reports every request.
double success_sample_rate;
double failure_sample_rate;
private:
DISALLOW_COPY_AND_ASSIGN(Resource);
};
// A particular endpoint for report uploads. Includes the URL to upload
// reports to. May include a verification URL or backoff/load management
// configuration in the future.
struct DOMAIN_RELIABILITY_EXPORT Collector {
public:
Collector();
~Collector();
// Registers with the JSONValueConverter so it will know how to convert the
// JSON for a collector into the struct.
static void RegisterJSONConverter(
base::JSONValueConverter<Collector>* converter);
bool IsValid() const;
GURL upload_url;
private:
DISALLOW_COPY_AND_ASSIGN(Collector);
};
DomainReliabilityConfig();
~DomainReliabilityConfig();
// Uses the JSONValueConverter to parse the JSON for a config into a struct.
static scoped_ptr<const DomainReliabilityConfig> FromJSON(
const base::StringPiece& json);
bool IsValid() const;
// Checks whether |now| is past the expiration time provided in the config.
bool IsExpired(base::Time now) const;
// Finds the index (in resources) of the first Resource that matches a
// particular URL. Returns kInvalidResourceIndex if it is not matched by any
// Resources.
size_t GetResourceIndexForUrl(const GURL& url) const;
// Registers with the JSONValueConverter so it will know how to convert the
// JSON for a config into the struct.
static void RegisterJSONConverter(
base::JSONValueConverter<DomainReliabilityConfig>* converter);
std::string version;
double valid_until;
std::string domain;
ScopedVector<Resource> resources;
ScopedVector<Collector> collectors;
private:
DISALLOW_COPY_AND_ASSIGN(DomainReliabilityConfig);
};
} // namespace domain_reliability
#endif // COMPONENTS_DOMAIN_RELIABILITY_CONFIG_H_
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