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113 lines
3.8 KiB
C++
113 lines
3.8 KiB
C++
#ifndef __TRANSACTION__
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#define __TRANSACTION__
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#include <boost/shared_ptr.hpp>
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#include <boost/enable_shared_from_this.hpp>
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#include <boost/cstdint.hpp>
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#include "key.h"
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#include "uint256.h"
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#include "newcoin.pb.h"
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#include "Hanko.h"
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#include "Serializer.h"
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#include "SHAMap.h"
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/*
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We could have made something that inherited from the protobuf transaction but this seemed simpler
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*/
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enum TransStatus
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{
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NEW =0, // just received / generated
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INVALID =1, // no valid signature, insufficient funds
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INCLUDED =2, // added to the current ledger
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CONFLICTED =3, // losing to a conflicting transaction
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COMMITTED =4, // known to be in a ledger
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HELD =5, // not valid now, maybe later
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REMOVED =6, // taken out of a ledger
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OBSOLETE =7, // a compatible transaction has taken precedence
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INCOMPLETE =8 // needs more signatures
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};
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class Account;
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class LocalAccount;
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class Transaction : public boost::enable_shared_from_this<Transaction>
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{
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public:
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typedef boost::shared_ptr<Transaction> pointer;
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static const uint32 TransSignMagic=0x54584E00; // "TXN"
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private:
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uint256 mTransactionID;
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uint160 mAccountFrom, mAccountTo;
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uint64 mAmount, mFee;
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uint32 mFromAccountSeq, mSourceLedger, mIdent;
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CKey::pointer mFromPubKey;
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std::vector<unsigned char> mSignature;
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uint32 mInLedger;
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TransStatus mStatus;
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public:
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Transaction();
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Transaction(const std::vector<unsigned char>& rawTransaction, bool validate);
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Transaction(TransStatus Status, LocalAccount& fromLocal, uint32 fromSeq, const uint160& to, uint64 amount,
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uint32 ident, uint32 ledger);
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bool sign(LocalAccount& fromLocalAccount);
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bool checkSign() const;
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void updateID();
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void updateFee();
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Serializer::pointer getRaw(bool prefix) const;
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Serializer::pointer getSigned() const;
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const uint256& getID() const { return mTransactionID; }
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const uint160& getFromAccount() const { return mAccountFrom; }
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const uint160& getToAccount() const { return mAccountTo; }
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uint64 getAmount() const { return mAmount; }
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uint64 getFee() const { return mFee; }
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uint32 getFromAccountSeq() const { return mFromAccountSeq; }
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uint32 getSourceLedger() const { return mSourceLedger; }
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uint32 getIdent() const { return mIdent; }
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const std::vector<unsigned char>& getSignature() const { return mSignature; }
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uint32 getLedger() const { return mInLedger; }
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TransStatus getStatus() const { return mStatus; }
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void setStatus(TransStatus status, uint32 ledgerSeq);
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// database functions
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bool save() const;
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static Transaction::pointer load(const uint256& id);
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static Transaction::pointer findFrom(const uint160& fromID, uint32 seq);
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// conversion function
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static bool convertToTransactions(uint32 ourLedgerSeq, uint32 otherLedgerSeq,
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bool checkFirstTransactions, bool checkSecondTransactions,
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const std::map<uint256, std::pair<SHAMapItem::pointer,SHAMapItem::pointer> >& inMap,
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std::map<uint256, std::pair<Transaction::pointer, Transaction::pointer> >& outMap);
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bool operator<(const Transaction&) const;
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bool operator>(const Transaction&) const;
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bool operator==(const Transaction&) const;
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bool operator!=(const Transaction&) const;
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bool operator<=(const Transaction&) const;
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bool operator>=(const Transaction&) const;
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protected:
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static Transaction::pointer transactionFromSQL(const std::string& statement);
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Transaction(const uint256& transactionID, const uint160& accountFrom, const uint160& accountTo,
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CKey::pointer key, uint64 amount, uint64 fee, uint32 fromAccountSeq, uint32 sourceLedger,
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uint32 ident, const std::vector<unsigned char>& signature, uint32 inLedger, TransStatus status) :
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mTransactionID(transactionID), mAccountFrom(accountFrom), mAccountTo(accountTo),
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mAmount(amount), mFee(fee), mFromAccountSeq(fromAccountSeq), mSourceLedger(sourceLedger),
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mIdent(ident), mFromPubKey(key), mSignature(signature), mInLedger(inLedger), mStatus(status)
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{ ; }
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};
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#endif
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