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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 CHROME_BROWSER_EXTENSIONS_POLICY_HANDLERS_H_
      6 #define CHROME_BROWSER_EXTENSIONS_POLICY_HANDLERS_H_
      7 
      8 #include "base/memory/scoped_ptr.h"
      9 #include "base/values.h"
     10 #include "components/policy/core/browser/configuration_policy_handler.h"
     11 
     12 namespace policy {
     13 class PolicyMap;
     14 class PolicyErrorMap;
     15 }  // namespace policy
     16 
     17 namespace extensions {
     18 
     19 // Implements additional checks for policies that are lists of extension IDs.
     20 class ExtensionListPolicyHandler
     21     : public policy::TypeCheckingPolicyHandler {
     22  public:
     23   ExtensionListPolicyHandler(const char* policy_name,
     24                              const char* pref_path,
     25                              bool allow_wildcards);
     26   virtual ~ExtensionListPolicyHandler();
     27 
     28   // ConfigurationPolicyHandler methods:
     29   virtual bool CheckPolicySettings(const policy::PolicyMap& policies,
     30                                    policy::PolicyErrorMap* errors) OVERRIDE;
     31   virtual void ApplyPolicySettings(const policy::PolicyMap& policies,
     32                                    PrefValueMap* prefs) OVERRIDE;
     33 
     34  protected:
     35   const char* pref_path() const;
     36 
     37   // Runs sanity checks on the policy value and returns it in |extension_ids|.
     38   bool CheckAndGetList(const policy::PolicyMap& policies,
     39                        policy::PolicyErrorMap* errors,
     40                        scoped_ptr<base::ListValue>* extension_ids);
     41 
     42  private:
     43   const char* pref_path_;
     44   bool allow_wildcards_;
     45 
     46   DISALLOW_COPY_AND_ASSIGN(ExtensionListPolicyHandler);
     47 };
     48 
     49 class ExtensionInstallForcelistPolicyHandler
     50     : public policy::TypeCheckingPolicyHandler {
     51  public:
     52   ExtensionInstallForcelistPolicyHandler();
     53   virtual ~ExtensionInstallForcelistPolicyHandler();
     54 
     55   // ConfigurationPolicyHandler methods:
     56   virtual bool CheckPolicySettings(const policy::PolicyMap& policies,
     57                                    policy::PolicyErrorMap* errors) OVERRIDE;
     58   virtual void ApplyPolicySettings(const policy::PolicyMap& policies,
     59                                    PrefValueMap* prefs) OVERRIDE;
     60 
     61  private:
     62   // Parses the data in |policy_value| and writes them to |extension_dict|.
     63   bool ParseList(const base::Value* policy_value,
     64                  base::DictionaryValue* extension_dict,
     65                  policy::PolicyErrorMap* errors);
     66 
     67   DISALLOW_COPY_AND_ASSIGN(ExtensionInstallForcelistPolicyHandler);
     68 };
     69 
     70 // Implements additional checks for policies that are lists of extension
     71 // URLPatterns.
     72 class ExtensionURLPatternListPolicyHandler
     73     : public policy::TypeCheckingPolicyHandler {
     74  public:
     75   ExtensionURLPatternListPolicyHandler(const char* policy_name,
     76                                        const char* pref_path);
     77   virtual ~ExtensionURLPatternListPolicyHandler();
     78 
     79   // ConfigurationPolicyHandler methods:
     80   virtual bool CheckPolicySettings(const policy::PolicyMap& policies,
     81                                    policy::PolicyErrorMap* errors) OVERRIDE;
     82   virtual void ApplyPolicySettings(const policy::PolicyMap& policies,
     83                                    PrefValueMap* prefs) OVERRIDE;
     84 
     85  private:
     86   const char* pref_path_;
     87 
     88   DISALLOW_COPY_AND_ASSIGN(ExtensionURLPatternListPolicyHandler);
     89 };
     90 
     91 }  // namespace extensions
     92 
     93 #endif  // CHROME_BROWSER_EXTENSIONS_POLICY_HANDLERS_H_
     94