chrome/browser/chromeos/platform_keys/platform_keys.cc

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "chrome/browser/chromeos/platform_keys/platform_keys.h"
   6
   7 #include <map>
   8
   9 #include "base/bind.h"
  10 #include "base/bind_helpers.h"
  11 #include "base/location.h"
  12 #include "base/threading/worker_pool.h"
  13 #include "net/base/hash_value.h"
  14 #include "net/cert/x509_certificate.h"
  15
  16 namespace chromeos {
  17
  18 namespace platform_keys {
  19
  20 namespace {
  21
  22 void IntersectOnWorkerThread(const net::CertificateList& certs1,
  23                              const net::CertificateList& certs2,
  24                              net::CertificateList* intersection) {
  25   std::map<net::SHA256HashValue, scoped_refptr<net::X509Certificate>,
  26            net::SHA256HashValueLessThan> fingerprints2;
  27
  28   // Fill the map with fingerprints of certs from |certs2|.
  29   for (const auto& cert2 : certs2) {
  30     fingerprints2[net::X509Certificate::CalculateFingerprint256(
  31         cert2->os_cert_handle())] = cert2;
  32   }
  33
  34   // Compare each cert from |certs1| with the entries of the map.
  35   for (const auto& cert1 : certs1) {
  36     const net::SHA256HashValue fingerprint1 =
  37         net::X509Certificate::CalculateFingerprint256(cert1->os_cert_handle());
  38     const auto it = fingerprints2.find(fingerprint1);
  39     if (it == fingerprints2.end())
  40       continue;
  41     const auto& cert2 = it->second;
  42     DCHECK(cert1->Equals(cert2.get()));
  43     intersection->push_back(cert1);
  44   }
  45 }
  46
  47 }  // namespace
  48
  49 const char kTokenIdUser[] = "user";
  50 const char kTokenIdSystem[] = "system";
  51
  52 ClientCertificateRequest::ClientCertificateRequest() {
  53 }
  54
  55 ClientCertificateRequest::~ClientCertificateRequest() {
  56 }
  57
  58 void IntersectCertificates(
  59     const net::CertificateList& certs1,
  60     const net::CertificateList& certs2,
  61     const base::Callback<void(scoped_ptr<net::CertificateList>)>& callback) {
  62   scoped_ptr<net::CertificateList> intersection(new net::CertificateList);
  63   net::CertificateList* const intersection_ptr = intersection.get();
  64   if (!base::WorkerPool::PostTaskAndReply(
  65           FROM_HERE, base::Bind(&IntersectOnWorkerThread, certs1, certs2,
  66                                 intersection_ptr),
  67           base::Bind(callback, base::Passed(&intersection)),
  68           false /* task_is_slow */)) {
  69     callback.Run(make_scoped_ptr(new net::CertificateList));
  70   }
  71 }
  72
  73 }  // namespace platform_keys
  74
  75 }  // namespace chromeos