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// Copyright 2017 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.
#include "components/ukm/ukm_source.h"
#include "base/hash.h"
#include "components/metrics/proto/ukm/source.pb.h"
namespace ukm {
namespace {
// The maximum length of a URL we will record.
constexpr int kMaxURLLength = 2 * 1024;
// The string sent in place of a URL if the real URL was too long.
constexpr char kMaxUrlLengthMessage[] = "URLTooLong";
// Returns a URL that is under the length limit, by returning a constant
// string when the URl is too long.
std::string GetShortenedURL(const GURL& url) {
if (url.spec().length() > kMaxURLLength)
return kMaxUrlLengthMessage;
return url.spec();
}
} // namespace
UkmSource::UkmSource() = default;
UkmSource::~UkmSource() = default;
void UkmSource::UpdateUrl(const GURL& url) {
DCHECK(!url_.is_empty());
if (url_ == url)
return;
if (initial_url_.is_empty())
initial_url_ = url_;
url_ = url;
}
void UkmSource::PopulateProto(Source* proto_source) const {
DCHECK(!proto_source->has_id());
DCHECK(!proto_source->has_url());
DCHECK(!proto_source->has_initial_url());
proto_source->set_id(id_);
proto_source->set_url(GetShortenedURL(url_));
if (!initial_url_.is_empty())
proto_source->set_initial_url(GetShortenedURL(initial_url_));
}
} // namespace ukm
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