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/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil -*- */
/**
* Copyright (C) 2013 Regents of the University of California.
* @author: Yingdi Yu <yingdi@cs.ucla.edu>
* @author: Jeff Thompson <jefft0@remap.ucla.edu>
* See COPYING for copyright and distribution information.
*/
#ifndef NDN_DER_HPP
#define NDN_DER_HPP
#include <vector>
#include <string>
#include <istream>
#include <ostream>
#include <sstream>
#include <ndn-cpp/common.hpp>
#include <ndn-cpp/encoding/oid.hpp>
#include "visitor/visitor.hpp"
#include "visitor/void-visitor.hpp"
#include "visitor/no-arguments-visitor.hpp"
#include "visitor/void-no-arguments-visitor.hpp"
namespace ndn {
namespace der {
enum DerType {
DER_EOC = 0,
DER_BOOLEAN = 1,
DER_INTEGER = 2,
DER_BIT_STRING = 3,
DER_OCTET_STRING = 4,
DER_NULL = 5,
DER_OBJECT_IDENTIFIER = 6,
DER_OBJECT_DESCRIPTOR = 7,
DER_EXTERNAL = 40,
DER_REAL = 9,
DER_ENUMERATED = 10,
DER_EMBEDDED_PDV = 43,
DER_UTF8_STRING = 12,
DER_RELATIVE_OID = 13,
DER_SEQUENCE = 48,
DER_SET = 49,
DER_NUMERIC_STRING = 18,
DER_PRINTABLE_STRING = 19,
DER_T61_STRING = 20,
DER_VIDEOTEX_STRING = 21,
DER_IA5_STRING = 22,
DER_UTC_TIME = 23,
DER_GENERALIZED_TIME = 24,
DER_GRAPHIC_STRING = 25,
DER_VISIBLE_STRING = 26,
DER_GENERAL_STRING = 27,
DER_UNIVERSAL_STRING = 28,
DER_CHARACTER_STRING = 29,
DER_BMP_STRING = 30,
};
class DerComplex;
class DerNode
{
public:
DerNode();
DerNode(DerType type);
DerNode(std::istream& start);
virtual
~DerNode();
virtual int
getSize() { return header_.size() + payload_.size(); }
virtual void
encode(std::ostream& start);
void
setParent(DerComplex * parent) { parent_ = parent; }
static ptr_lib::shared_ptr<DerNode>
parse(std::istream& start);
const std::vector<uint8_t>&
getHeader() const { return header_; }
std::vector<uint8_t>&
getHeader() { return header_; }
const std::vector<uint8_t>&
getPayload() const { return payload_; }
std::vector<uint8_t>&
getPayload() { return payload_; }
const DerType&
getType() { return type_; }
virtual ptr_lib::shared_ptr<std::vector<uint8_t> >
getRaw()
{
ptr_lib::shared_ptr<std::vector<uint8_t> > blob(new std::vector<uint8_t>());
blob->insert(blob->end(), header_.begin(), header_.end());
blob->insert(blob->end(), payload_.begin(), payload_.end());
return blob;
}
virtual void accept(VoidNoArgumentsVisitor& visitor) = 0;
virtual void accept(VoidVisitor& visitor, ndnboost::any param) = 0;
virtual ndnboost::any accept(NoArgumentsVisitor& visitor) = 0;
virtual ndnboost::any accept(Visitor& visitor, ndnboost::any param) = 0;
protected:
void
decode(std::istream& start);
void
encodeHeader(int size);
int
decodeHeader(std::istream& start);
protected:
DerType type_;
std::vector<uint8_t> header_;
std::vector<uint8_t> payload_;
DerComplex * parent_;
};
typedef std::vector<ptr_lib::shared_ptr<DerNode> > DerNodePtrList;
class DerComplex : public DerNode
{
public:
DerComplex();
DerComplex(DerType type);
DerComplex(std::istream& start);
virtual
~DerComplex();
virtual int
getSize();
void
addChild(ptr_lib::shared_ptr<DerNode> nodePtr, bool notifyParent = true);
virtual void
encode(std::ostream& start);
const DerNodePtrList&
getChildren() const { return nodeList_; }
DerNodePtrList&
getChildren() { return nodeList_; }
virtual ptr_lib::shared_ptr<std::vector<uint8_t> >
getRaw();
private:
void
updateSize();
void
setChildChanged();
private:
bool childChanged_;
int size_;
DerNodePtrList nodeList_;
};
class DerByteString : public DerNode
{
public:
DerByteString(const std::string& str, DerType type);
DerByteString(const std::vector<uint8_t>& blob, DerType type);
DerByteString(std::istream& start);
virtual
~DerByteString();
};
//0x01
class DerBool : public DerNode
{
public:
DerBool(bool value);
DerBool(std::istream& start);
virtual
~DerBool();
virtual void accept(VoidNoArgumentsVisitor& visitor) { visitor.visit(*this); }
virtual void accept(VoidVisitor& visitor, ndnboost::any param) { visitor.visit(*this, param); }
virtual ndnboost::any accept(NoArgumentsVisitor& visitor) { return visitor.visit(*this); }
virtual ndnboost::any accept(Visitor& visitor, ndnboost::any param) { return visitor.visit(*this, param); }
};
//0x02
class DerInteger : public DerNode
{
public:
DerInteger(const std::vector<uint8_t>& blob);
DerInteger(std::istream& start);
virtual
~DerInteger();
virtual void accept(VoidNoArgumentsVisitor& visitor) { visitor.visit(*this); }
virtual void accept(VoidVisitor& visitor, ndnboost::any param) { visitor.visit(*this, param); }
virtual ndnboost::any accept(NoArgumentsVisitor& visitor) { return visitor.visit(*this); }
virtual ndnboost::any accept(Visitor& visitor, ndnboost::any param) { return visitor.visit(*this, param); }
};
//0x03
class DerBitString : public DerNode
{
public:
DerBitString(const std::vector<uint8_t>& blob, uint8_t paddingLen);
DerBitString(std::istream& start);
virtual
~DerBitString();
virtual void accept(VoidNoArgumentsVisitor& visitor) { visitor.visit(*this); }
virtual void accept(VoidVisitor& visitor, ndnboost::any param) { visitor.visit(*this, param); }
virtual ndnboost::any accept(NoArgumentsVisitor& visitor) { return visitor.visit(*this); }
virtual ndnboost::any accept(Visitor& visitor, ndnboost::any param) { return visitor.visit(*this, param); }
};
//0x04
class DerOctetString : public DerByteString
{
public:
DerOctetString(const std::string& str);
DerOctetString(const std::vector<uint8_t>& blob);
DerOctetString(std::istream& start);
virtual
~DerOctetString();
virtual void accept(VoidNoArgumentsVisitor& visitor) { visitor.visit(*this); }
virtual void accept(VoidVisitor& visitor, ndnboost::any param) { visitor.visit(*this, param); }
virtual ndnboost::any accept(NoArgumentsVisitor& visitor) { return visitor.visit(*this); }
virtual ndnboost::any accept(Visitor& visitor, ndnboost::any param) { return visitor.visit(*this, param); }
};
//0x05
class DerNull : public DerNode
{
public:
DerNull();
DerNull(std::istream& start);
virtual
~DerNull();
virtual void accept(VoidNoArgumentsVisitor& visitor) { visitor.visit(*this); }
virtual void accept(VoidVisitor& visitor, ndnboost::any param) { visitor.visit(*this, param); }
virtual ndnboost::any accept(NoArgumentsVisitor& visitor) { return visitor.visit(*this); }
virtual ndnboost::any accept(Visitor& visitor, ndnboost::any param) { return visitor.visit(*this, param); }
};
//0x06
class DerOid : public DerNode
{
public:
DerOid(const OID& oid);
DerOid(const std::string& oidStr);
DerOid(const std::vector<int>& value);
DerOid(std::istream& start);
virtual
~DerOid();
virtual void accept(VoidNoArgumentsVisitor& visitor) { visitor.visit(*this); }
virtual void accept(VoidVisitor& visitor, ndnboost::any param) { visitor.visit(*this, param); }
virtual ndnboost::any accept(NoArgumentsVisitor& visitor) { return visitor.visit(*this); }
virtual ndnboost::any accept(Visitor& visitor, ndnboost::any param) { return visitor.visit(*this, param); }
int
decode128(int& offset);
private:
void
prepareEncoding(const std::vector<int>& value);
void
encode128(int value, std::ostringstream& os);
};
//0x10
class DerSequence : public DerComplex
{
public:
DerSequence();
DerSequence(std::istream& start);
virtual
~DerSequence();
virtual void accept(VoidNoArgumentsVisitor& visitor) { visitor.visit(*this); }
virtual void accept(VoidVisitor& visitor, ndnboost::any param) { visitor.visit(*this, param); }
virtual ndnboost::any accept(NoArgumentsVisitor& visitor) { return visitor.visit(*this); }
virtual ndnboost::any accept(Visitor& visitor, ndnboost::any param) { return visitor.visit(*this, param); }
};
//0x13
class DerPrintableString : public DerByteString
{
public:
DerPrintableString(const std::string& str);
DerPrintableString(const std::vector<uint8_t>& blob);
DerPrintableString(std::istream& start);
virtual
~DerPrintableString();
virtual void accept(VoidNoArgumentsVisitor& visitor) { visitor.visit(*this); }
virtual void accept(VoidVisitor& visitor, ndnboost::any param) { visitor.visit(*this, param); }
virtual ndnboost::any accept(NoArgumentsVisitor& visitor) { return visitor.visit(*this); }
virtual ndnboost::any accept(Visitor& visitor, ndnboost::any param) { return visitor.visit(*this, param); }
};
//0x1b
class DerGtime : public DerNode
{
public:
DerGtime(const MillisecondsSince1970& time);
DerGtime(std::istream& start);
virtual
~DerGtime();
virtual void accept(VoidNoArgumentsVisitor& visitor) { visitor.visit(*this); }
virtual void accept(VoidVisitor& visitor, ndnboost::any param) { visitor.visit(*this, param); }
virtual ndnboost::any accept(NoArgumentsVisitor& visitor) { return visitor.visit(*this); }
virtual ndnboost::any accept(Visitor& visitor, ndnboost::any param) { return visitor.visit(*this, param); }
/**
* Convert to the ISO string representation of the time.
* @param time Milliseconds since 1/1/1970.
* @return The ISO string.
*/
static std::string toIsoString(const MillisecondsSince1970& time);
/**
* Convert from the ISO string representation to the internal time format.
* @param isoString The ISO time formatted string.
* @return The time in milliseconds since 1/1/1970.
*/
static MillisecondsSince1970 fromIsoString(const std::string& isoString);
};
} // der
}
#endif