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      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/installer/util/firewall_manager_win.h"
      6 
      7 #include "base/files/file_path.h"
      8 #include "base/strings/string16.h"
      9 #include "chrome/installer/util/advanced_firewall_manager_win.h"
     10 #include "chrome/installer/util/browser_distribution.h"
     11 #include "chrome/installer/util/install_util.h"
     12 #include "chrome/installer/util/l10n_string_util.h"
     13 #include "chrome/installer/util/legacy_firewall_manager_win.h"
     14 
     15 #include "installer_util_strings.h"  // NOLINT
     16 
     17 namespace installer {
     18 
     19 namespace {
     20 
     21 const uint16 kDefaultMdnsPort = 5353;
     22 
     23 class FirewallManagerAdvancedImpl : public FirewallManager {
     24  public:
     25   FirewallManagerAdvancedImpl() {}
     26   virtual ~FirewallManagerAdvancedImpl() {}
     27 
     28   bool Init(const base::string16& app_name, const base::FilePath& app_path) {
     29     return manager_.Init(app_name, app_path);
     30   }
     31 
     32   // FirewallManager methods.
     33   virtual bool CanUseLocalPorts() OVERRIDE {
     34     return !manager_.IsFirewallEnabled() || manager_.HasAnyRule();
     35   };
     36 
     37   virtual bool AddFirewallRules() OVERRIDE {
     38     return manager_.AddUDPRule(GetMdnsRuleName(), GetMdnsRuleDescription(),
     39                                kDefaultMdnsPort);
     40   }
     41 
     42   virtual void RemoveFirewallRules() OVERRIDE {
     43     manager_.DeleteAllRules();
     44   }
     45 
     46  private:
     47   static base::string16 GetMdnsRuleName() {
     48 #if defined(GOOGLE_CHROME_BUILD)
     49     if (InstallUtil::IsChromeSxSProcess())
     50       return GetLocalizedString(IDS_INBOUND_MDNS_RULE_NAME_CANARY_BASE);
     51 #endif
     52     return GetLocalizedString(IDS_INBOUND_MDNS_RULE_NAME_BASE);
     53   }
     54 
     55   static base::string16 GetMdnsRuleDescription() {
     56 #if defined(GOOGLE_CHROME_BUILD)
     57     if (InstallUtil::IsChromeSxSProcess())
     58       return GetLocalizedString(IDS_INBOUND_MDNS_RULE_DESCRIPTION_CANARY_BASE);
     59 #endif
     60       return GetLocalizedString(IDS_INBOUND_MDNS_RULE_DESCRIPTION_BASE);
     61   }
     62 
     63   AdvancedFirewallManager manager_;
     64   DISALLOW_COPY_AND_ASSIGN(FirewallManagerAdvancedImpl);
     65 };
     66 
     67 class FirewallManagerLegacyImpl : public FirewallManager {
     68  public:
     69   FirewallManagerLegacyImpl() {}
     70   virtual ~FirewallManagerLegacyImpl() {}
     71 
     72   bool Init(const base::string16& app_name, const base::FilePath& app_path) {
     73     return manager_.Init(app_name, app_path);
     74   }
     75 
     76   // FirewallManager methods.
     77   virtual bool CanUseLocalPorts() OVERRIDE {
     78     return !manager_.IsFirewallEnabled() ||
     79         manager_.GetAllowIncomingConnection(NULL);
     80   };
     81 
     82   virtual bool AddFirewallRules() OVERRIDE {
     83     // Change nothing if rule is set.
     84     return manager_.GetAllowIncomingConnection(NULL) ||
     85         manager_.SetAllowIncomingConnection(true);
     86   }
     87 
     88   virtual void RemoveFirewallRules() OVERRIDE {
     89     manager_.DeleteRule();
     90   }
     91 
     92  private:
     93   LegacyFirewallManager manager_;
     94   DISALLOW_COPY_AND_ASSIGN(FirewallManagerLegacyImpl);
     95 };
     96 
     97 }  // namespace
     98 
     99 FirewallManager::~FirewallManager() {}
    100 
    101 // static
    102 scoped_ptr<FirewallManager> FirewallManager::Create(
    103     BrowserDistribution* dist,
    104     const base::FilePath& chrome_path) {
    105   // First try to connect to "Windows Firewall with Advanced Security" (Vista+).
    106   scoped_ptr<FirewallManagerAdvancedImpl> manager(
    107       new FirewallManagerAdvancedImpl());
    108   if (manager->Init(dist->GetDisplayName(), chrome_path))
    109     return manager.PassAs<FirewallManager>();
    110 
    111   // Next try to connect to "Windows Firewall for Windows XP with SP2".
    112   scoped_ptr<FirewallManagerLegacyImpl> legacy_manager(
    113       new FirewallManagerLegacyImpl());
    114   if (legacy_manager->Init(dist->GetDisplayName(), chrome_path))
    115     return legacy_manager.PassAs<FirewallManager>();
    116 
    117   return scoped_ptr<FirewallManager>();
    118 }
    119 
    120 FirewallManager::FirewallManager() {
    121 }
    122 
    123 }  // namespace installer
    124