Class: Glueby::Contract::AR::Timestamp

Inherits:
ActiveRecord::Base
  • Object
show all
Includes:
GluebyLogger
Defined in:
lib/glueby/contract/active_record/timestamp.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Methods included from GluebyLogger

#logger

Constructor Details

#initialize(attributes = nil) ⇒ Timestamp

  • wallet_id

  • content

  • prefix(optional)

  • timestamp_type(optional)

  • version [String] Version of the timestamp recording method.

    The format in which the timestamp is recorded differs depending on the version.
Version "1" treats the specified content and prefix as a binary string.
Version "2" treats the specified content and prefix as a hexadecimal string with the string set to prefix and content.

Parameters:

  • attributes (Hash) (defaults to: nil) —

    attributes which consist of:

Raises:



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# File 'lib/glueby/contract/active_record/timestamp.rb', line 50

def initialize(attributes = nil)
  # Set content_hash from :content attribute
  hex = attributes[:version] == '1' ? false : true
  content_hash = Timestamp.digest_content(attributes[:content], attributes[:digest] || :sha256, hex)
  super(
    wallet_id: attributes[:wallet_id],
    content_hash: content_hash,
    prefix: attributes[:prefix] || '',
    status: :init,
    timestamp_type: attributes[:timestamp_type] || :simple,
    prev_id: attributes[:prev_id],
    version: attributes[:version]
  )
rescue ::ArgumentError => e
  raise Glueby::ArgumentError, e.message
end

Instance Attribute Details

#tx ⇒ Object (readonly)

Returns the value of attribute tx.



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# File 'lib/glueby/contract/active_record/timestamp.rb', line 10

def tx
  @tx
end

Class Method Details

.digest_content(content, digest, hex = false) ⇒ Object 



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# File 'lib/glueby/contract/active_record/timestamp.rb', line 24

def digest_content(content, digest, hex = false)
  case digest&.downcase
  when :sha256
    content = hex ? content.htb : content
    Tapyrus.sha256(content).bth
  when :double_sha256
    content = hex ? content.htb : content
    Tapyrus.double_sha256(content).bth
  when :none
    content
  else
    raise Glueby::Contract::Errors::UnsupportedDigestType
  end
end

Instance Method Details

#hex? ⇒ Boolean Also known as: hex

Returns:

  • (Boolean) 


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# File 'lib/glueby/contract/active_record/timestamp.rb', line 143

def hex?
  version != '1'
end

#latest? ⇒ Boolean Also known as: latest

Return true if timestamp type is ‘trackable’ and output in timestamp transaction has not been spent yet, otherwise return false.

Returns:

  • (Boolean) 


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# File 'lib/glueby/contract/active_record/timestamp.rb', line 68

def latest?
  trackable? && attributes['latest']
end

#next_id ⇒ Object 



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# File 'lib/glueby/contract/active_record/timestamp.rb', line 17

def next_id
  self.next&.id
end

#save_with_broadcast(fee_estimator: Glueby::Contract::FeeEstimator::Fixed.new, utxo_provider: nil) ⇒ Object

Broadcast and save timestamp

Parameters:

Returns:

  • true if tapyrus transactions were broadcasted and the timestamp was updated successfully, otherwise false.



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# File 'lib/glueby/contract/active_record/timestamp.rb', line 92

def save_with_broadcast(fee_estimator: Glueby::Contract::FeeEstimator::Fixed.new, utxo_provider: nil)
  save_with_broadcast!(fee_estimator: fee_estimator, utxo_provider: utxo_provider)
rescue Errors::FailedToBroadcast => e
  logger.error("failed to broadcast (id=#{id}, reason=#{e.message})")
  false
rescue Errors::ArgumentError => e
  logger.info("failed to broadcast by argument error (id=#{id}, reason=#{e.message})")
  false
end

#save_with_broadcast!(fee_estimator: Glueby::Contract::FeeEstimator::Fixed.new, utxo_provider: nil) ⇒ Object

Broadcast and save timestamp, and it raises errors

Parameters:

Returns:

  • true if tapyrus transactions were broadcasted and the timestamp was updated successfully

Raises:



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# File 'lib/glueby/contract/active_record/timestamp.rb', line 110

def save_with_broadcast!(fee_estimator: Glueby::Contract::FeeEstimator::Fixed.new, utxo_provider: nil)
  validate_prev!
  utxo_provider = Glueby::UtxoProvider.new if !utxo_provider && Glueby.configuration.use_utxo_provider?

  funding_tx, tx, p2c_address, payment_base = create_txs(fee_estimator, utxo_provider)

  if funding_tx
    logger.info("funding tx was broadcasted(id=#{id}, funding_tx.txid=#{funding_tx.txid})")
  end
  ::ActiveRecord::Base.transaction(joinable: false, requires_new: true) do
    wallet.internal_wallet.broadcast(tx) do |tx|
      assign_attributes(txid: tx.txid, status: :unconfirmed, p2c_address: p2c_address, payment_base: payment_base)
      @tx = tx
      save!(validate: false) # The validation is already executed at head of #save_with_broadcast!

      if update_trackable?
        prev.latest = false
        prev.next = self
        prev.save!
      end
    end
  end
  logger.info("timestamp tx was broadcasted (id=#{id}, txid=#{tx.txid})")
  true
rescue Tapyrus::RPC::Error,
       Internal::Wallet::Errors::WalletAlreadyLoaded,
       Internal::Wallet::Errors::WalletNotFound,
       Glueby::Internal::Wallet::Errors::InvalidSigner,
       Errors::InsufficientFunds => e
  errors.add(:base, "failed to broadcast (id=#{id}, reason=#{e.message})")
  raise Errors::FailedToBroadcast, "failed to broadcast (id=#{id}, reason=#{e.message})"
end

#utxo ⇒ Hash

Returns a UTXO that corresponds to the timestamp

Returns:

  • (Hash) —

    UTXO

    • String

      script_pubkey A script pubkey hex string

    • String

      txid A txid

    • Integer

      vout An index of the tx

    • Integer

      amount A value of



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# File 'lib/glueby/contract/active_record/timestamp.rb', line 79

def utxo
  {
    script_pubkey: Tapyrus::Script.parse_from_addr(p2c_address).to_hex,
    txid: txid,
    vout: Contract::Timestamp::TxBuilder::PAY_TO_CONTRACT_INPUT_INDEX,
    amount: Glueby::Contract::Timestamp::P2C_DEFAULT_VALUE
  }
end