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Versions: 5
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Stored size: 1.92 KB
Contents
require 'base58'
require 'digest/sha2'
module SolanaRuby
class Utils
class << self
# Decodes a length-prefixed byte array using a variable-length encoding.
def decode_length(bytes)
raise ArgumentError, "Input must be an array of bytes" unless bytes.is_a?(Array)
length = 0
size = 0
loop do
raise "Unexpected end of bytes during length decoding" if bytes.empty?
byte = bytes.shift
length |= (byte & 0x7F) << (size * 7)
size += 1
break if (byte & 0x80).zero?
end
length
end
# Encodes a length as a variable-length byte array.
def encode_length(length)
raise ArgumentError, "Length must be a non-negative integer" unless length.is_a?(Integer) && length >= 0
bytes = []
loop do
byte = length & 0x7F
length >>= 7
if length.zero?
bytes << byte
break
else
bytes << (byte | 0x80)
end
end
bytes
end
# Converts a byte array to a Base58-encoded string.
def bytes_to_base58(bytes)
raise ArgumentError, "Input must be an array of bytes" unless bytes.is_a?(Array)
Base58.binary_to_base58(bytes.pack('C*'), :bitcoin)
end
# Converts a Base58-encoded string to a byte array.
def base58_to_bytes(base58_string)
raise ArgumentError, "Input must be a non-empty string" unless base58_string.is_a?(String) && !base58_string.empty?
Base58.base58_to_binary(base58_string, :bitcoin).bytes
rescue ArgumentError
raise "Invalid Base58 string: #{base58_string}"
end
# Computes the SHA-256 hash of the given data and returns it as a hexadecimal string.
def sha256(data)
raise ArgumentError, "Data must be a string" unless data.is_a?(String)
Digest::SHA256.hexdigest(data)
end
end
end
end
Version data entries
5 entries across 5 versions & 1 rubygems