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      1 // Copyright 2013 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 #ifndef CHROMEOS_NETWORK_CLIENT_CERT_RESOLVER_H_
      6 #define CHROMEOS_NETWORK_CLIENT_CERT_RESOLVER_H_
      7 
      8 #include <string>
      9 #include <vector>
     10 
     11 #include "base/basictypes.h"
     12 #include "base/memory/ref_counted.h"
     13 #include "base/memory/scoped_ptr.h"
     14 #include "base/memory/weak_ptr.h"
     15 #include "chromeos/cert_loader.h"
     16 #include "chromeos/chromeos_export.h"
     17 #include "chromeos/network/network_policy_observer.h"
     18 #include "chromeos/network/network_state_handler_observer.h"
     19 
     20 namespace base {
     21 class TaskRunner;
     22 }
     23 
     24 namespace chromeos {
     25 
     26 class FavoriteState;
     27 class NetworkStateHandler;
     28 class ManagedNetworkConfigurationHandler;
     29 
     30 // Observes the known networks. If a network is configured with a client
     31 // certificate pattern, this class searches for a matching client certificate.
     32 // Each time it finds a match, it configures the network accordingly.
     33 class CHROMEOS_EXPORT ClientCertResolver : public NetworkStateHandlerObserver,
     34                                            public CertLoader::Observer,
     35                                            public NetworkPolicyObserver {
     36  public:
     37   struct NetworkAndMatchingCert;
     38 
     39   ClientCertResolver();
     40   virtual ~ClientCertResolver();
     41 
     42   void Init(NetworkStateHandler* network_state_handler,
     43             ManagedNetworkConfigurationHandler* managed_network_config_handler);
     44 
     45   // Sets the task runner that any slow calls will be made from, e.g. calls
     46   // to the NSS database. If not set, uses base::WorkerPool.
     47   void SetSlowTaskRunnerForTest(
     48       const scoped_refptr<base::TaskRunner>& task_runner);
     49 
     50  private:
     51   typedef std::vector<const FavoriteState*> FavoriteStateList;
     52 
     53    // NetworkStateHandlerObserver overrides
     54   virtual void NetworkListChanged() OVERRIDE;
     55 
     56   // CertLoader::Observer overrides
     57   virtual void OnCertificatesLoaded(const net::CertificateList& cert_list,
     58                                     bool initial_load) OVERRIDE;
     59 
     60   // NetworkPolicyObserver overrides
     61   virtual void PolicyApplied(const std::string& service_path) OVERRIDE;
     62 
     63   // Check which networks of |networks| are configured with a client certificate
     64   // pattern. Search for certificates, on the worker thread, and configure the
     65   // networks for which a matching cert is found (see ConfigureCertificates).
     66   void ResolveNetworks(const FavoriteStateList& networks);
     67 
     68   // |matches| contains networks for which a matching certificate was found.
     69   // Configures these networks.
     70   void ConfigureCertificates(std::vector<NetworkAndMatchingCert>* matches);
     71 
     72   // The set of networks that were checked/resolved in previous passes. These
     73   // networks are skipped in the NetworkListChanged notification.
     74   std::set<std::string> resolved_networks_;
     75 
     76   // Unowned associated (global or test) instance.
     77   NetworkStateHandler* network_state_handler_;
     78 
     79   // Unowned associated (global or test) instance.
     80   ManagedNetworkConfigurationHandler* managed_network_config_handler_;
     81 
     82   // TaskRunner for slow tasks.
     83   scoped_refptr<base::TaskRunner> slow_task_runner_for_test_;
     84 
     85   base::WeakPtrFactory<ClientCertResolver> weak_ptr_factory_;
     86 
     87   DISALLOW_COPY_AND_ASSIGN(ClientCertResolver);
     88 };
     89 
     90 }  // namespace chromeos
     91 
     92 #endif  // CHROMEOS_NETWORK_CLIENT_CERT_RESOLVER_H_
     93