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70 lines
2.3 KiB
C++
70 lines
2.3 KiB
C++
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// Copyright 2016 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "net/cert/sth_distributor.h"
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#include "base/metrics/histogram_macros.h"
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#include "base/time/time.h"
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#include "net/cert/signed_tree_head.h"
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namespace {
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const uint8_t kPilotLogID[] = {0xa4, 0xb9, 0x09, 0x90, 0xb4, 0x18, 0x58, 0x14,
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0x87, 0xbb, 0x13, 0xa2, 0xcc, 0x67, 0x70, 0x0a,
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0x3c, 0x35, 0x98, 0x04, 0xf9, 0x1b, 0xdf, 0xb8,
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0xe3, 0x77, 0xcd, 0x0e, 0xc8, 0x0d, 0xdc, 0x10};
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}
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namespace net {
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namespace ct {
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STHDistributor::STHDistributor()
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: observer_list_(base::ObserverListPolicy::EXISTING_ONLY) {}
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STHDistributor::~STHDistributor() = default;
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void STHDistributor::NewSTHObserved(const SignedTreeHead& sth) {
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auto it = std::find_if(observed_sths_.begin(), observed_sths_.end(),
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[&sth](const SignedTreeHead& other) {
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return sth.log_id == other.log_id;
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});
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if (it == observed_sths_.end())
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observed_sths_.push_back(sth);
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else
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*it = sth;
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for (auto& observer : observer_list_)
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observer.NewSTHObserved(sth);
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if (sth.log_id.compare(0, sth.log_id.size(),
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reinterpret_cast<const char*>(kPilotLogID),
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sizeof(kPilotLogID)) != 0)
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return;
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const base::TimeDelta sth_age = base::Time::Now() - sth.timestamp;
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UMA_HISTOGRAM_CUSTOM_TIMES("Net.CertificateTransparency.PilotSTHAge", sth_age,
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base::TimeDelta::FromHours(1),
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base::TimeDelta::FromDays(4), 100);
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}
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void STHDistributor::RegisterObserver(STHObserver* observer) {
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observer_list_.AddObserver(observer);
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// Make a local copy, because notifying the |observer| of a
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// new STH may result in this class being notified of a
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// (different) new STH, thus invalidating the iterator.
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std::vector<SignedTreeHead> local_sths(observed_sths_);
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for (const auto& sth : local_sths)
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observer->NewSTHObserved(sth);
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}
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void STHDistributor::UnregisterObserver(STHObserver* observer) {
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observer_list_.RemoveObserver(observer);
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}
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} // namespace ct
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} // namespace net
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