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// Copyright (c) 2012 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_ONC_ONC_UTILS_H_
#define CHROMEOS_NETWORK_ONC_ONC_UTILS_H_
#include <string>
#include "base/basictypes.h"
#include "base/memory/scoped_ptr.h"
#include "chromeos/chromeos_export.h"
#include "chromeos/network/onc/onc_constants.h"
namespace base {
class DictionaryValue;
}
namespace chromeos {
namespace onc {
struct OncValueSignature;
// A valid but empty (no networks and no certificates) and unencrypted
// configuration.
CHROMEOS_EXPORT extern const char kEmptyUnencryptedConfiguration[];
// Parses |json| according to the JSON format. If |json| is a JSON formatted
// dictionary, the function returns the dictionary as a DictionaryValue.
// Otherwise returns NULL.
CHROMEOS_EXPORT scoped_ptr<base::DictionaryValue> ReadDictionaryFromJson(
const std::string& json);
// Decrypts the given EncryptedConfiguration |onc| (see the ONC specification)
// using |passphrase|. The resulting UnencryptedConfiguration is returned. If an
// error occurs, returns NULL.
CHROMEOS_EXPORT scoped_ptr<base::DictionaryValue> Decrypt(
const std::string& passphrase,
const base::DictionaryValue& onc);
// For logging only: strings not user facing.
CHROMEOS_EXPORT std::string GetSourceAsString(ONCSource source);
// Used for string expansion with function ExpandStringInOncObject(...).
class CHROMEOS_EXPORT StringSubstitution {
public:
StringSubstitution() {}
virtual ~StringSubstitution() {}
// Returns the replacement string for |placeholder| in
// |substitute|. Currently, onc::substitutes::kLoginIDField and
// onc::substitutes::kEmailField are supported.
virtual bool GetSubstitute(std::string placeholder,
std::string* substitute) const = 0;
private:
DISALLOW_COPY_AND_ASSIGN(StringSubstitution);
};
// Replaces all expandable fields that are mentioned in the ONC
// specification. The object of |onc_object| is modified in place. Currently
// onc::substitutes::kLoginIDField and onc::substitutes::kEmailField are
// expanded. The replacement strings are obtained from |substitution|.
CHROMEOS_EXPORT void ExpandStringsInOncObject(
const OncValueSignature& signature,
const StringSubstitution& substitution,
base::DictionaryValue* onc_object);
// Creates a copy of |onc_object| with all values of sensitive fields replaced
// by |mask|. To find sensitive fields, signature and field name are checked
// with the function FieldIsCredential().
CHROMEOS_EXPORT scoped_ptr<base::DictionaryValue> MaskCredentialsInOncObject(
const OncValueSignature& signature,
const base::DictionaryValue& onc_object,
const std::string& mask);
} // namespace onc
} // namespace chromeos
#endif // CHROMEOS_NETWORK_ONC_ONC_UTILS_H_
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