git.m6w6.name Git - m6w6/seekat/blob - lib/API/ContentType/Handler/Base64.php

   1 <?php
   2
   3 namespace seekat\API\ContentType\Handler;
   4
   5 use http\Message\Body;
   6 use seekat\API\ContentType\Handler;
   7 use seekat\Exception\InvalidArgumentException;
   8 use seekat\Exception\UnexpectedValueException;
   9 use function seekat\typeof;
  10
  11 final class Base64 implements Handler {
  12         /**
  13          * @inheritdoc
  14          */
  15         function types() : array {
  16                 return ["base64"];
  17         }
  18
  19         /**
  20          * @inheritdoc
  21          * @param string $data
  22          */
  23         function encode(mixed $data): Body {
  24                 if (!is_scalar($data)) {
  25                         throw new InvalidArgumentException(
  26                                 "BASE64 encoding argument must be scalar, got ".typeof($data));
  27                 }
  28                 return (new Body)->append(base64_encode($data));
  29         }
  30
  31         /**
  32          * @inheritdoc
  33          * @return string
  34          */
  35         function decode(Body $body) : string {
  36                 $data = base64_decode($body, true);
  37
  38                 if (false === $data) {
  39                         $e = error_get_last();
  40                         throw new UnexpectedValueException("Could not decode BASE64: ".
  41                                 ($e ? $e["message"] : "Unknown error"));
  42                 }
  43
  44                 return $data;
  45         }
  46 }