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Merge pull request #58 from cryptape/feature-sdk
Using appchain.rb to make rpc calls and replace message decode
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,100 +1,22 @@ | ||
| # frozen_string_literal: true | ||
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| require "blockchain_pb" | ||
| require "ciri/utils" | ||
| require "ciri/crypto" | ||
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| class Message | ||
| attr_reader :original_data, :original_signature, :unverified_transaction | ||
| attr_reader :data, :signature, :value, :to, :from, :version, :chain_id | ||
| attr_reader :unverified_transaction, :data, :signature, :value, :to, :from, :version, :chain_id | ||
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| # initialize the object and values... | ||
| # | ||
| # @param content [String] hex number string of transaction content | ||
| # @return [void] | ||
| def initialize(content) | ||
| @unverified_transaction = decode(content) | ||
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| @original_data = @unverified_transaction["transaction"]["data"] | ||
| @original_signature = @unverified_transaction["signature"] | ||
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| @data = to_hex(@original_data) | ||
| @signature = to_hex(@original_signature) | ||
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| @version = @unverified_transaction["transaction"]["version"] | ||
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| @value = to_hex(@unverified_transaction["transaction"]["value"]) | ||
| @to = "0x" + if @version.zero? | ||
| @unverified_transaction["transaction"]["to"] | ||
| elsif @version == 1 | ||
| @unverified_transaction["transaction"]["to_v1"]&.unpack1("H*") | ||
| else | ||
| "" | ||
| end | ||
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| @chain_id = if @version.zero? | ||
| @unverified_transaction["transaction"]["chain_id"] | ||
| elsif @version == 1 | ||
| chain_id_v1 = @unverified_transaction["transaction"]["chain_id_v1"]&.unpack1("H*") | ||
| "0x#{chain_id_v1}" | ||
| end | ||
|
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| @from = get_from | ||
| end | ||
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| # unserialize the transaction content | ||
| # | ||
| # @param content [String] hex number string of transaction content | ||
| # @return [UnverifiedTransaction] an object of google protobuf file in lib dir. | ||
| def decode(content) | ||
| binary_str = hex_to_binary_str(content) | ||
| ::UnverifiedTransaction.decode(binary_str) | ||
| end | ||
|
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| # get from value from UnverifiedTransaction | ||
| # @return [String] an address of hex number string with prefix "0x" | ||
| def get_from | ||
| transaction = unverified_transaction["transaction"] | ||
| msg = ProtoTransaction.encode(transaction) | ||
| tx_msg = Ciri::Utils.keccak(msg) | ||
| pubkey = Ciri::Crypto.ecdsa_recover(tx_msg, @original_signature) | ||
| address = Ciri::Utils.keccak(pubkey[1..-1])[-20..-1] | ||
| Ciri::Utils.to_hex(address) | ||
| end | ||
|
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| # a method to convert hex byte string to hex number string with prefix "0x" | ||
| # @return [String] an hex string of address | ||
| def to_hex(hex) | ||
| str = hex.unpack1("H*") | ||
| return str if str.downcase.start_with?("0x") | ||
|
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| "0x" + str | ||
| end | ||
|
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| # remove "0x" prefix if have | ||
| # | ||
| # @param [String] hex number string | ||
| # @return [String] | ||
| def filter_hex_str(hex) | ||
| return hex[2..-1] if hex.start_with?("0x") | ||
|
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| hex | ||
| end | ||
|
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| # convert hex string to byte code array | ||
| # | ||
| # @param hex [String] hex number string | ||
| # @return [Array<Integer>] byte code array | ||
| def hex_to_buffer(hex) | ||
| hex_str = filter_hex_str(hex) | ||
| [hex_str].pack("H*").bytes.to_a | ||
| end | ||
|
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| # convert hex string to binary string | ||
| # | ||
| # @param hex [String] hex number string | ||
| # @return [String] binary string | ||
| def hex_to_binary_str(hex) | ||
| hex_to_buffer(hex).pack("c*") | ||
| @data = AppChain::TransactionSigner.decode(content) | ||
| @unverified_transaction = @data[:unverified_transaction] | ||
| @transaction = @unverified_transaction[:transaction] | ||
| @from = @data.dig(:sender, :address) | ||
| @to = @transaction[:to] | ||
| @data = @transaction[:data] | ||
| @value = @transaction[:value] | ||
| @version = @transaction[:version] | ||
| @chain_id = @transaction[:chain_id] | ||
| @signature = @unverified_transaction[:signature] | ||
| end | ||
| end |
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