validate all types of btc addresses with tipper

Gemfile

@@ -58,6 +58,7 @@ gem 'rss'
 gem 'webp-ffi'
 gem 'rszr'
 gem 'zip_tricks'
+gem 'adequate_crypto_address'
 
 group :development, :test do
   gem 'pry'

Gemfile.lock

@@ -32,8 +32,12 @@ GEM
       tzinfo (~> 2.0)
     addressable (2.8.1)
       public_suffix (>= 2.0.2, < 6.0)
+    adequate_crypto_address (0.1.9)
+      base58 (~> 0.2)
+      keccak (~> 1.3)
     ansi (1.5.0)
     base32 (0.3.4)
+    base58 (0.2.3)
     bcrypt (3.1.18)
     builder (3.2.4)
     capybara (3.38.0)
@@ -142,6 +146,7 @@ GEM
     io-extra (1.4.0)
     ipaddress (0.8.3)
     json (2.6.2)
+    keccak (1.3.1)
     llhttp-ffi (0.4.0)
       ffi-compiler (~> 1.0)
       rake (~> 13.0)
@@ -318,6 +323,7 @@ DEPENDENCIES
   acme-client (~> 2.0.0)
   activesupport
   addressable (>= 2.8.0)
+  adequate_crypto_address
   apparition!
   base32
   bcrypt

ext/bitcoin_validator.rb

@@ -1,49 +0,0 @@
-class BitcoinValidator
-  class << self
-    def address_version
-      "00"
-    end
-
-    def p2sh_version
-      "05"
-    end
-
-    def valid_address?(address)
-      hex = decode_base58(address) rescue nil
-      return false unless hex && hex.bytesize == 50
-      return false unless [address_version, p2sh_version].include?(hex[0...2])
-      base58_checksum?(address)
-    end
-
-    def decode_base58(base58_val)
-      s = base58_to_int(base58_val).to_s(16); s = (s.bytesize.odd? ? '0'+s : s)
-      s = '' if s == '00'
-      leading_zero_bytes = (base58_val.match(/^([1]+)/) ? $1 : '').size
-      s = ("00"*leading_zero_bytes) + s  if leading_zero_bytes > 0
-      s
-    end
-
-    def base58_checksum?(base58)
-      hex = decode_base58(base58) rescue nil
-      return false unless hex
-      checksum( hex[0...42] ) == hex[-8..-1]
-    end
-
-    def checksum(hex)
-      b = [hex].pack("H*") # unpack hex
-      Digest::SHA256.hexdigest( Digest::SHA256.digest(b) )[0...8]
-    end
-
-
-    def base58_to_int(base58_val)
-      alpha = "123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz"
-      int_val, base = 0, alpha.size
-      base58_val.reverse.each_char.with_index do |char,index|
-        raise ArgumentError, 'Value not a valid Base58 String.' unless char_index = alpha.index(char)
-        int_val += char_index*(base**index)
-      end
-      int_val
-    end
-
-  end
-end

models/site.rb

@@ -1119,7 +1119,7 @@ class Site < Sequel::Model
       errors.add :tipping_paypal, 'A valid PayPal tipping email address is required.'
     end
 
-    if !values[:tipping_bitcoin].blank? && !BitcoinValidator.valid_address?(values[:tipping_bitcoin])
+    if !values[:tipping_bitcoin].blank? && !AdequateCryptoAddress.valid?(values[:tipping_bitcoin], 'BTC')
       errors.add :tipping_bitcoin, 'Bitcoin tipping address is not valid.'
     end