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      1 // Copyright (c) 2011 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 "net/base/ssl_config_service.h"
      6 
      7 #include "net/base/ssl_config_service_defaults.h"
      8 #include "net/base/ssl_false_start_blacklist.h"
      9 
     10 namespace net {
     11 
     12 SSLConfig::CertAndStatus::CertAndStatus() : cert_status(0) {}
     13 
     14 SSLConfig::CertAndStatus::~CertAndStatus() {}
     15 
     16 SSLConfig::SSLConfig()
     17     : rev_checking_enabled(true), ssl3_enabled(true),
     18       tls1_enabled(true), dnssec_enabled(false),
     19       dns_cert_provenance_checking_enabled(false),
     20       false_start_enabled(true),
     21       send_client_cert(false), verify_ev_cert(false), ssl3_fallback(false) {
     22 }
     23 
     24 SSLConfig::~SSLConfig() {
     25 }
     26 
     27 bool SSLConfig::IsAllowedBadCert(X509Certificate* cert) const {
     28   for (size_t i = 0; i < allowed_bad_certs.size(); ++i) {
     29     if (cert->Equals(allowed_bad_certs[i].cert))
     30       return true;
     31   }
     32   return false;
     33 }
     34 
     35 SSLConfigService::SSLConfigService()
     36     : observer_list_(ObserverList<Observer>::NOTIFY_EXISTING_ONLY) {
     37 }
     38 
     39 // static
     40 SSLConfigService* SSLConfigService::CreateSystemSSLConfigService() {
     41   // TODO(rtenneti): We don't use the system SSL configuration any more.
     42   // Simplify this code after talking with mattm.
     43   return new SSLConfigServiceDefaults;
     44 }
     45 
     46 // static
     47 bool SSLConfigService::IsKnownFalseStartIncompatibleServer(
     48     const std::string& hostname) {
     49 #ifdef ANDROID
     50   return true;
     51 #else
     52   return SSLFalseStartBlacklist::IsMember(hostname.c_str());
     53 #endif
     54 }
     55 
     56 static bool g_dnssec_enabled = false;
     57 static bool g_false_start_enabled = true;
     58 static bool g_dns_cert_provenance_checking = false;
     59 
     60 // static
     61 void SSLConfigService::EnableDNSSEC() {
     62   g_dnssec_enabled = true;
     63 }
     64 
     65 // static
     66 bool SSLConfigService::dnssec_enabled() {
     67   return g_dnssec_enabled;
     68 }
     69 
     70 // static
     71 void SSLConfigService::DisableFalseStart() {
     72   g_false_start_enabled = false;
     73 }
     74 
     75 // static
     76 bool SSLConfigService::false_start_enabled() {
     77   return g_false_start_enabled;
     78 }
     79 
     80 // static
     81 void SSLConfigService::EnableDNSCertProvenanceChecking() {
     82   g_dns_cert_provenance_checking = true;
     83 }
     84 
     85 // static
     86 bool SSLConfigService::dns_cert_provenance_checking_enabled() {
     87   return g_dns_cert_provenance_checking;
     88 }
     89 
     90 void SSLConfigService::AddObserver(Observer* observer) {
     91   observer_list_.AddObserver(observer);
     92 }
     93 
     94 void SSLConfigService::RemoveObserver(Observer* observer) {
     95   observer_list_.RemoveObserver(observer);
     96 }
     97 
     98 SSLConfigService::~SSLConfigService() {
     99 }
    100 
    101 // static
    102 void SSLConfigService::SetSSLConfigFlags(SSLConfig* ssl_config) {
    103   ssl_config->dnssec_enabled = g_dnssec_enabled;
    104   ssl_config->false_start_enabled = g_false_start_enabled;
    105   ssl_config->dns_cert_provenance_checking_enabled =
    106       g_dns_cert_provenance_checking;
    107 }
    108 
    109 void SSLConfigService::ProcessConfigUpdate(const SSLConfig& orig_config,
    110                                            const SSLConfig& new_config) {
    111   if (orig_config.rev_checking_enabled != new_config.rev_checking_enabled ||
    112       orig_config.ssl3_enabled != new_config.ssl3_enabled ||
    113       orig_config.tls1_enabled != new_config.tls1_enabled) {
    114     FOR_EACH_OBSERVER(Observer, observer_list_, OnSSLConfigChanged());
    115   }
    116 }
    117 
    118 }  // namespace net
    119