C++ OTPseudonym::GetNextTransactionNum方法代码示例

// THIS FUNCTION IS CALLED BY THE CUSTOMER
//
// (Transaction number and closing number are retrieved from Nym at this time.)
bool OTAgreement::Confirm(OTPseudonym & MERCHANT_NYM, OTPseudonym & PAYER_NYM)
{
    // ----------------------------------------------------------------------------
    OTIdentifier id_MERCHANT_NYM, id_PAYER_NYM;
    MERCHANT_NYM.GetIdentifier(id_MERCHANT_NYM);
    PAYER_NYM.GetIdentifier(id_PAYER_NYM);
    
    if (GetRecipientUserID() == GetSenderUserID())
    {
        OTLog::Output(0, "OTAgreement::Confirm: Error: Sender and recipient have the same Nym ID (not allowed.)\n");
        return false;        
    }
    else if (GetRecipientUserID() != id_MERCHANT_NYM)
    {
        OTLog::Output(0, "OTAgreement::Confirm: Merchant has wrong NymID (should be same as RecipientUserID.)\n");
        return false;        
    }
    else if (GetSenderUserID() != id_PAYER_NYM)
    {
        OTLog::Output(0, "OTAgreement::Confirm: Payer has wrong NymID (should be same as SenderUserID.)\n");
        return false;        
    }
    else if (PAYER_NYM.GetTransactionNumCount(GetServerID()) < 2) // Need opening and closing numbers (that's 2)... 
    {
        OTLog::Output(0, "OTAgreement::Confirm: Failure. You need at least 2 transaction numbers available to do this.\n");
		return false;
    }
    else if (GetRecipientCountClosingNumbers() < 2)
    {
        OTLog::Output(0, "OTAgreement::Confirm: Failure. (The merchant was supposed to attach 2 transaction numbers.)\n");
		return false;
    }
    // ----------------------------------------------------------------------------
    // This is the single reason why MERCHANT_NYM was even passed in here!
    // Supposedly merchant has already signed.  Let's verify this!!
    //
    if (false == this->VerifySignature(MERCHANT_NYM))
    {
        OTLog::Output(0, "OTAgreement::Confirm: Merchant's signature failed to verify.\n");
        return false;
    }
    // ----------------------------------------------------------------------------
    
    // Now that we KNOW the merchant signed it... SAVE MERCHANT's COPY.
    // Let's save a copy of the one the merchant signed, before changing it and re-signing it,
    // (to add my own transaction numbers...)
    //
    OTString strTemp;
    this->SaveContractRaw(strTemp);
    this->SetMerchantSignedCopy(strTemp);

    // *******************************************************************
    
    // The payer has to submit TWO transaction numbers in order to activate this agreement...
    //
    OTString strServerID(GetServerID());
	long lTransactionNumber=0, lClosingTransactionNo=0;
	
	if (false == PAYER_NYM.GetNextTransactionNum(PAYER_NYM, strServerID, lTransactionNumber))
	{
		OTLog::Error("OTAgreement::Confirm: Error: Strangely unable to get a transaction number.\n");
		return false;
	}
	else if (false == PAYER_NYM.GetNextTransactionNum(PAYER_NYM, strServerID, lClosingTransactionNo))
	{
 		OTLog::Error("OTAgreement::Confirm: Error: Strangely unable to get a closing transaction number.\n");
        PAYER_NYM.AddTransactionNum(PAYER_NYM, strServerID, lTransactionNumber, true); // bSave=true
        // (Since the first one was successful, we just put it back before returning.)
		return false;
	}
    
    // At this point we now HAVE 2 transaction numbers (for payer / sender)...
    // We can't return without USING THEM or PUTTING THEM BACK.
    //
    // ---------------------------------------------------------
 
     
	this->SetTransactionNum(lTransactionNumber); // Set the Transaction Number
    this->AddClosingTransactionNo(lClosingTransactionNo); // and the Closing Number (both for sender)...

	// ------------------------------------------- 
	
    // CREATION DATE was set in the Merchant's proposal, and it's RESET here in the Confirm.
    // This way, (since we still have the original proposal) we can see BOTH times.
    //
	time_t CURRENT_TIME = time(NULL);
	// Set the Creation Date.
	SetCreationDate(CURRENT_TIME);
    
	// ------------------------------------------- 
    
	OTLog::Output(4, "OTAgreement::Confirm(): Success!\n");
    
	return true;
}

// THIS FUNCTION IS CALLED BY THE MERCHANT
//
// (lMerchantTransactionNumber, lMerchantClosingNumber are set internally in this call, from MERCHANT_NYM.)
bool OTAgreement::SetProposal(OTPseudonym & MERCHANT_NYM,       const OTString & strConsideration,
                              const time_t VALID_FROM/*=0*/,  const time_t VALID_TO/*=0*/)
{
    // ----------------------------------------------------------------------------
    OTIdentifier id_MERCHANT_NYM;
    MERCHANT_NYM.GetIdentifier(id_MERCHANT_NYM);
    
    if (GetRecipientUserID() != id_MERCHANT_NYM)
    {
        OTLog::Output(0, "OTAgreement::SetProposal: Merchant has wrong NymID (should be same as RecipientUserID.)\n");
        return false;        
    }
    else if (GetRecipientUserID() == GetSenderUserID())
    {
        OTLog::Output(0, "OTAgreement::SetProposal: Error: Sender and recipient have the same Nym ID (not allowed.)\n");
        return false;        
    }
    else if (MERCHANT_NYM.GetTransactionNumCount(GetServerID()) < 2) // Need opening and closing numbers (that's 2)... 
    {
        OTLog::Output(0, "OTAgreement::SetProposal: Failure. You need at least 2 transaction numbers available to do this.\n");
		return false;
    }

    // ------------------------------------------- 
	// Set the CREATION DATE
    //
	const time_t CURRENT_TIME = time(NULL);
	
	// Set the Creation Date.
	SetCreationDate(CURRENT_TIME);

    // -----------------------------------------
    // Putting this above here so I don't have to put the transaction numbers back if this fails:
    // ------------------------------------------- 
    // VALID_FROM
    //
	// The default "valid from" time is NOW.
	if (0 >= VALID_FROM) // if it's 0 or less, set to current time.
		SetValidFrom(CURRENT_TIME);
	else // Otherwise use whatever was passed in.
		SetValidFrom(VALID_FROM);
    // ------------------------------------------- 
    // VALID_TO
    //
	// The default "valid to" time is 0 (which means no expiration date / cancel anytime.)
	if (0 == VALID_TO) // VALID_TO is 0
	{
		SetValidTo(VALID_TO); // Keep it at zero then, so it won't expire.
	}
	else if (0 < VALID_TO) // VALID_TO is ABOVE zero...
	{
		if (VALID_TO < VALID_FROM) // If Valid-To date is EARLIER than Valid-From date...
		{
			long lValidTo = VALID_TO, lValidFrom = VALID_FROM;
			OTLog::vError("OTAgreement::SetProposal: VALID_TO (%ld) is earlier than VALID_FROM (%ld)\n", 
                          lValidTo, lValidFrom);
			return false;
		}
		
		SetValidTo(VALID_TO); // Set it to whatever it is, since it is now validated as higher than Valid-From.
	}
	else // VALID_TO is a NEGATIVE number... Error.
	{
		long lValidTo = VALID_TO;
		OTLog::vError("Negative value for valid_to in SetAgreement: %ld\n", lValidTo);
        
		return false;
	}

    // ----------------------------------------------------------------------------
    // Since we'll be needing 2 transaction numbers to do this, let's grab 'em...
    //
    OTString strServerID(GetServerID());
    
	long lTransactionNumber=0, lClosingTransactionNo=0;
	
    if (MERCHANT_NYM.GetTransactionNumCount(GetServerID()) < 2) // Need opening and closing numbers (that's 2)... 
    {
        OTLog::Output(0, "OTAgreement::SetProposal: Failure. You need at least 2 transaction numbers available to do this.\n");
		return false;
    }
	else if (false == MERCHANT_NYM.GetNextTransactionNum(MERCHANT_NYM, strServerID, lTransactionNumber))
	{
		OTLog::Error("OTAgreement::SetProposal: Error: Strangely unable to get a transaction number.\n");
		return false;
	}
	else if (false == MERCHANT_NYM.GetNextTransactionNum(MERCHANT_NYM, strServerID, lClosingTransactionNo))
	{
 		OTLog::Error("OTAgreement::SetProposal: Error: Strangely unable to get a closing transaction number.\n");
        MERCHANT_NYM.AddTransactionNum(MERCHANT_NYM, strServerID, lTransactionNumber, true); // bSave=true
        // (Since the first one was successful, we just put it back before returning.)
		return false;
	}

    // At this point we now have 2 transaction numbers...
    // We can't return without either USING THEM, or PUTTING THEM BACK.
    //
//.........这里部分代码省略.........