Add ONC VPN support for OpenVPN and L2TP/IPsec VPNs

chrome/browser/chromeos/cros/onc_network_parser.h

 // Copyright (c) 2011 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 CHROME_BROWSER_CHROMEOS_CROS_ONC_NETWORK_PARSER_H_
 #define CHROME_BROWSER_CHROMEOS_CROS_ONC_NETWORK_PARSER_H_
 #pragma once
 
 #include <string>
 
 #include "base/compiler_specific.h"  // for OVERRIDE
 #include "base/memory/scoped_ptr.h"
+#include "base/values.h"
 #include "chrome/browser/chromeos/cros/network_parser.h"
 
 namespace base {
 class DictionaryValue;
 class ListValue;
 class Value;
 }
 
 namespace chromeos {
 
+// This is a simple representation of the signature of an ONC typed
+// field, used in validation and translation.  It could be extended
+// to include more complex rules of when the field is required/optional,
+// as well as to handle "enum" types, which are strings with a small
+// static set of possible values.
+struct OncValueSignature {
+  const char* field;
+  PropertyIndex property;
+  base::Value::Type type;
+};
+
 // This is the network parser that parses the data from an Open Network
 // Configuration (ONC) file. ONC files are in JSON format that describes
 // networks. We will use this parser to parse the ONC JSON blob.
 //
 // For ONC file format, see: http://dev.chromium.org/chromium-os/
 //     chromiumos-design-docs/open-network-configuration
 class OncNetworkParser : public NetworkParser {
  public:
   explicit OncNetworkParser(const std::string& onc_blob);
   virtual ~OncNetworkParser();
@@ skipping 12 matching lines @@
   // Call to parse and import the nth certificate in the certificate
   // list.  Returns false on failure.
   bool ParseCertificate(int n);
 
   virtual Network* CreateNetworkFromInfo(const std::string& service_path,
       const base::DictionaryValue& info) OVERRIDE;
 
   const std::string& parse_error() const { return parse_error_; }
 
  protected:
+  typedef bool (*ParserPointer)(OncNetworkParser*,
+                                PropertyIndex,
+                                const base::Value&,
+                                Network*);
+
   OncNetworkParser();
 
   virtual Network* CreateNewNetwork(ConnectionType type,
                                     const std::string& service_path) OVERRIDE;
   virtual ConnectionType ParseType(const std::string& type) OVERRIDE;
   virtual ConnectionType ParseTypeFromDictionary(
       const base::DictionaryValue& info) OVERRIDE;
 
   // Returns the type string from the dictionary of network values.
   std::string GetTypeFromDictionary(const base::DictionaryValue& info);
 
   // Returns the GUID string from the dictionary of network values.
   std::string GetGuidFromDictionary(const base::DictionaryValue& info);
 
+  // Parses a nested ONC object with the given mapper and parser function.

[Mattias Nissler (ping if slow), 2011/12/01 13:09:10]

You should mention how it handles errors and such.

[kmixter1, 2011/12/01 19:48:41]

Done.

+  bool ParseNestedObject(Network* network,
+                         const std::string& onc_type,
+                         const base::Value& value,
+                         OncValueSignature* signature,
+                         ParserPointer parser);
+
  private:
   bool ParseServerOrCaCertificate(
     int cert_index,
     const std::string& cert_type,
     base::DictionaryValue* certificate);
   bool ParseClientCertificate(
     int cert_index,
     base::DictionaryValue* certificate);
 
   // Error message from the JSON parser, if applicable.
@@ skipping 19 matching lines @@
 };
 
 class OncWifiNetworkParser : public OncWirelessNetworkParser {
  public:
   OncWifiNetworkParser();
   virtual ~OncWifiNetworkParser();
   virtual bool ParseValue(PropertyIndex index,
                           const base::Value& value,
                           Network* network) OVERRIDE;
  protected:
-  bool ParseEAPValue(PropertyIndex index,
-                     const base::Value& value,
-                     WifiNetwork* wifi_network);
-  ConnectionSecurity ParseSecurity(const std::string& security);
-  EAPMethod ParseEAPMethod(const std::string& method);
-  EAPPhase2Auth ParseEAPPhase2Auth(const std::string& auth);
+  static bool ParseWifiValue(OncNetworkParser* parser,
+                             PropertyIndex index,
+                             const base::Value& value,
+                             Network* wifi_network);
+  static bool ParseEAPValue(OncNetworkParser* parser,
+                            PropertyIndex index,
+                            const base::Value& value,
+                            Network* wifi_network);
+  static ConnectionSecurity ParseSecurity(const std::string& security);
+  static EAPMethod ParseEAPMethod(const std::string& method);
+  static EAPPhase2Auth ParseEAPPhase2Auth(const std::string& auth);
  private:
   DISALLOW_COPY_AND_ASSIGN(OncWifiNetworkParser);
 };
 
+// Base for virtual private networks.
 class OncVirtualNetworkParser : public OncNetworkParser {
  public:
   OncVirtualNetworkParser();
   virtual ~OncVirtualNetworkParser();
   virtual bool ParseValue(PropertyIndex index,
                           const base::Value& value,
                           Network* network) OVERRIDE;
   virtual bool UpdateNetworkFromInfo(
       const base::DictionaryValue& info, Network* network) OVERRIDE;
  protected:
-  bool ParseProviderValue(PropertyIndex index,
-                          const base::Value& value,
-                          VirtualNetwork* network);
+  static bool ParseIPsecValue(OncNetworkParser* parser,
+                              PropertyIndex index,
+                              const base::Value& value,
+                              Network* network);
+  static bool ParseL2TPValue(OncNetworkParser* parser,
+                             PropertyIndex index,
+                             const base::Value& value,
+                             Network* network);
+  static bool ParseOpenVPNValue(OncNetworkParser* parser,
+                                PropertyIndex index,
+                                const base::Value& value,
+                                Network* network);
+  static bool ParseVPNValue(OncNetworkParser* parser,
+                            PropertyIndex index,
+                            const base::Value& value,
+                            Network* network);
   ProviderType ParseProviderType(const std::string& type);
+  ProviderType UpdateProviderTypeWithAuth(ProviderType provider,
+                                          const std::string& auth_type);
  private:
   DISALLOW_COPY_AND_ASSIGN(OncVirtualNetworkParser);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_CROS_ONC_NETWORK_PARSER_H_