Skip to content

Commit

Permalink
Improve encoding and decoding
Browse files Browse the repository at this point in the history
  • Loading branch information
@ben221199
ben221199 committed Aug 6, 2022
1 parent d500c94 commit 63c0d34
Showing 1 changed file with 108 additions and 48 deletions.
156 changes: 108 additions & 48 deletions src/Multibase.php
View file
Original file line number Diff line number Diff line change
Expand Up @@ -37,148 +37,208 @@ class Multibase{
private const ALPHABET58_BITCOIN = '123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz';
private const ALPHABET58_FLICKR = '123456789abcdefghijkmnopqrstuvwxyzABCDEFGHJKLMNPQRSTUVWXYZ';

public static function decode(string $data): string{
$b = substr($data,0,1);
$rest = substr($data,1);
switch($b){
/**
* @param string $data
* @param string|null $code
* @return string
*/
public static function decode(string $data,?string $code=null): string{
$decoded = null;
if($code==null){
$code = substr($data,0,1);
$data = substr($data,1);
}
switch($code){
case self::IDENTITY:{
return $rest;
$decoded = $data;
break;
}
case self::BASE2:{
return Base2::decode($rest);
$decoded = Base2::decode($data);
break;
}
case self::BASE8:{
return Base8::decode($rest);
$decoded = Base8::decode($data);
break;
}
case self::BASE10:{
return Base10::decode($rest);
$decoded = Base10::decode($data);
break;
}
case self::BASE16:{
return Base16::decode($rest);
$decoded = Base16::decode($data);
break;
}
case self::BASE16UPPER:{
return Base16::decode(strtolower($rest));
$decoded = Base16::decode(strtolower($data));
break;
}
case self::BASE32HEX:
case self::BASE32HEXPAD:{
return Base32::decode($rest,self::ALPHABET32_HEX);
$decoded = Base32::decode($data,self::ALPHABET32_HEX);
break;
}
case self::BASE32HEXUPPER:
case self::BASE32HEXPADUPPER:{
return Base32::decode(strtolower($rest),self::ALPHABET32_HEX);
$decoded = Base32::decode(strtolower($data),self::ALPHABET32_HEX);
break;
}
case self::BASE32:
case self::BASE32PAD:{
return Base32::decode($rest,self::ALPHABET32);
$decoded = Base32::decode($data,self::ALPHABET32);
break;
}
case self::BASE32UPPER:
case self::BASE32PADUPPER:{
return Base32::decode(strtolower($rest),self::ALPHABET32);
$decoded = Base32::decode(strtolower($data),self::ALPHABET32);
break;
}
case self::BASE32Z:{
return Base32::decode($rest,self::ALPHABET32_ZOOKO);
$decoded = Base32::decode($data,self::ALPHABET32_ZOOKO);
break;
}
case self::BASE36:{
return Base36::decode($rest);
$decoded = Base36::decode($data);
break;
}
case self::BASE36UPPER:{
return Base36::decode(strtolower($rest));
$decoded = Base36::decode(strtolower($data));
break;
}
case self::BASE58BTC:{
return Base58::decode($rest,self::ALPHABET58_BITCOIN);
$decoded = Base58::decode($data,self::ALPHABET58_BITCOIN);
break;
}
case self::BASE58FLICKR:{
return Base58::decode($rest,self::ALPHABET58_FLICKR);
$decoded = Base58::decode($data,self::ALPHABET58_FLICKR);
break;
}
case self::BASE64:
case self::BASE64PAD:{
return Base64::decode($rest);
$decoded = Base64::decode($data);
break;
}
case self::BASE64URL:
case self::BASE64URLPAD:{
return Base64::decode(str_replace(['-','_'],['+','/'],$rest));
$decoded = Base64::decode(str_replace(['-','_'],['+','/'],$data));
break;
}
default:{
throw new InvalidArgumentException('Unsupported base decoding: '.$b);
throw new InvalidArgumentException('Unsupported base decoding: '.$code);
}
}
return $decoded;
}

public static function encode(string $b,string $data){
switch($b){
/**
* @param string $code
* @param string $data
* @param bool $addCodePrefix
* @return string|null
*/
public static function encode(string $code,string $data,$addCodePrefix=true){
$encoded = null;
switch($code){
case self::IDENTITY:{
return $b.$data;
$encoded = $data;
break;
}
case self::BASE2:{
return $b.Base2::encode($data);
$encoded = Base2::encode($data);
break;
}
case self::BASE8:{
return $b.Base8::encode($data);
$encoded = Base8::encode($data);
break;
}
case self::BASE10:{
return $b.Base10::encode($data);
$encoded = Base10::encode($data);
break;
}
case self::BASE16:{
return $b.Base16::encode($data);
$encoded = Base16::encode($data);
break;
}
case self::BASE16UPPER:{
return $b.strtoupper(Base16::encode($data));
$encoded = strtoupper(Base16::encode($data));
break;
}
case self::BASE32HEX:{
return $b.str_replace('=','',Base32::encode($data,self::ALPHABET32_HEX));
$encoded = str_replace('=','',Base32::encode($data,self::ALPHABET32_HEX));
break;
}
case self::BASE32HEXUPPER:{
return $b.str_replace('=','',strtoupper(Base32::encode($data,self::ALPHABET32_HEX)));
$encoded = str_replace('=','',strtoupper(Base32::encode($data,self::ALPHABET32_HEX)));
break;
}
case self::BASE32HEXPAD:{
return $b.Base32::encode($data,self::ALPHABET32_HEX);
$encoded = Base32::encode($data,self::ALPHABET32_HEX);
break;
}
case self::BASE32HEXPADUPPER:{
return $b.strtoupper(Base32::encode($data,self::ALPHABET32_HEX));
$encoded = strtoupper(Base32::encode($data,self::ALPHABET32_HEX));
break;
}
case self::BASE32:{
return $b.str_replace('=','',Base32::encode($data,self::ALPHABET32));
$encoded = str_replace('=','',Base32::encode($data,self::ALPHABET32));
break;
}
case self::BASE32UPPER:{
return $b.str_replace('=','',strtoupper(Base32::encode($data,self::ALPHABET32)));
$encoded = str_replace('=','',strtoupper(Base32::encode($data,self::ALPHABET32)));
break;
}
case self::BASE32PAD:{
return $b.Base32::encode($data,self::ALPHABET32);
$encoded = Base32::encode($data,self::ALPHABET32);
break;
}
case self::BASE32PADUPPER:{
return $b.strtoupper(Base32::encode($data,self::ALPHABET32));
$encoded = strtoupper(Base32::encode($data,self::ALPHABET32));
break;
}
case self::BASE32Z:{
return $b.str_replace('=','',Base32::encode($data,self::ALPHABET32_ZOOKO));
$encoded = str_replace('=','',Base32::encode($data,self::ALPHABET32_ZOOKO));
break;
}
case self::BASE36:{
return $b.Base36::encode($data);
$encoded = Base36::encode($data);
break;
}
case self::BASE36UPPER:{
return $b.strtoupper(Base36::encode($data));
$encoded = strtoupper(Base36::encode($data));
break;
}
case self::BASE58BTC:{
return $b.Base58::encode($data,self::ALPHABET58_BITCOIN);
$encoded = Base58::encode($data,self::ALPHABET58_BITCOIN);
break;
}
case self::BASE58FLICKR:{
return $b.Base58::encode($data,self::ALPHABET58_FLICKR);
$encoded = Base58::encode($data,self::ALPHABET58_FLICKR);
break;
}
case self::BASE64:{
return $b.str_replace('=','',Base64::encode($data));
$encoded = str_replace('=','',Base64::encode($data));
break;
}
case self::BASE64PAD:{
return $b.Base64::encode($data);
$encoded = Base64::encode($data);
break;
}
case self::BASE64URL:{
return $b.str_replace('=','',str_replace(['+','/'],['-','_'],Base64::encode($data)));
$encoded = str_replace('=','',str_replace(['+','/'],['-','_'],Base64::encode($data)));
break;
}
case self::BASE64URLPAD:{
return $b.str_replace(['+','/'],['-','_'],Base64::encode($data));
$encoded = str_replace(['+','/'],['-','_'],Base64::encode($data));
break;
}
default:{
throw new InvalidArgumentException('Unsupported base encoding: '.$b);
throw new InvalidArgumentException('Unsupported base encoding: '.$code);
}
}
if($addCodePrefix){
$encoded = $code.$encoded;
}
return $encoded;
}

}

0 comments on commit 63c0d34

Please sign in to comment.