Autoconnect policy for CrOS.

chromeos/network/policy_applicator.h

 // Copyright 2013 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.
 
 #ifndef CHROMEOS_NETWORK_POLICY_APPLICATOR_H_
 #define CHROMEOS_NETWORK_POLICY_APPLICATOR_H_
 
 #include <map>
 #include <set>
 #include <string>
 
 #include "base/memory/ref_counted.h"
 #include "base/memory/weak_ptr.h"
+#include "base/values.h"
 #include "chromeos/network/network_profile.h"
 
-namespace base {
-class DictionaryValue;
-}
-
 namespace chromeos {
 
 // This class compares (entry point is Run()) |modified_policies| with the
 // existing entries in the provided Shill profile |profile|. It fetches all
 // entries in parallel (GetProfilePropertiesCallback), compares each entry with
 // the current policies (GetEntryCallback) and adds all missing policies
 // (~PolicyApplicator).
 class PolicyApplicator : public base::RefCounted<PolicyApplicator> {
  public:
   class ConfigurationHandler {
     public:
      virtual ~ConfigurationHandler() {}
      // Write the new configuration with the properties |shill_properties| to
      // Shill. This configuration comes from a policy. Any conflicting or
      // existing configuration for the same network will have been removed
      // before.
      virtual void CreateConfigurationFromPolicy(
          const base::DictionaryValue& shill_properties) = 0;
 
+     virtual void UpdateExistingConfigurationWithPropertiesFromPolicy(
+         const base::DictionaryValue& existing_properties,
+         const base::DictionaryValue& new_properties) = 0;
+
     private:
      DISALLOW_ASSIGN(ConfigurationHandler);
   };
 
   typedef std::map<std::string, const base::DictionaryValue*> GuidToPolicyMap;
 
   // |modified_policies| must not be NULL and will be empty afterwards.
   PolicyApplicator(base::WeakPtr<ConfigurationHandler> handler,
                    const NetworkProfile& profile,
                    const GuidToPolicyMap& all_policies,
+                   const base::DictionaryValue& global_network_config,
                    std::set<std::string>* modified_policies);
 
   void Run();
 
  private:
   friend class base::RefCounted<PolicyApplicator>;
 
   // Called with the properties of the profile |profile_|. Requests the
   // properties of each entry, which are processed by GetEntryCallback.
   void GetProfilePropertiesCallback(
       const base::DictionaryValue& profile_properties);
 
   // Called with the properties of the profile entry |entry|. Checks whether the
   // entry was previously managed, whether a current policy applies and then
   // either updates, deletes or not touches the entry.
   void GetEntryCallback(const std::string& entry,
                         const base::DictionaryValue& entry_properties);
 
   // Sends Shill the command to delete profile entry |entry| from |profile_|.
   void DeleteEntry(const std::string& entry);
 
   // Creates a Shill configuration from the given parameters and sends them to
   // Shill. |user_settings| can be NULL if none exist.
   void CreateAndWriteNewShillConfiguration(
       const std::string& guid,
       const base::DictionaryValue& policy,
       const base::DictionaryValue* user_settings);
 
+  // Adds properties to |properties_to_update|, which are enforced on an
+  // unamaged network by the global network config of the policy.
+  // |entry_properties| are the network's current properties read from its
+  // profile entry.
+  void GetPropertiesForUnmanagedEntry(
+      const base::DictionaryValue& entry_properties,
+      base::DictionaryValue* properties_to_update) const;
+
   // Called once all Profile entries are processed. Calls
   // ApplyRemainingPolicies.
   virtual ~PolicyApplicator();
 
   // Creates new entries for all remaining policies, i.e. for which no matching
   // Profile entry was found.
   void ApplyRemainingPolicies();
 
   std::set<std::string> remaining_policies_;
   base::WeakPtr<ConfigurationHandler> handler_;
   NetworkProfile profile_;
   GuidToPolicyMap all_policies_;
+  base::DictionaryValue global_network_config_;
 
   DISALLOW_COPY_AND_ASSIGN(PolicyApplicator);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROMEOS_NETWORK_POLICY_APPLICATOR_H_