Question

我编写了以下函数来编码我的S3链接，以便他们处理亚马逊的S3编码系统以保护链接。麻烦的是它只有在文件在桶中时才有效。如果我将一个子文件夹放到桶中并将文件粘贴在那里，它就无法正常工作。我做错了什么？

function encodeS3($sURL,$sAccessKey,$sSecretKey,$nExpireMinutes = 5) {
  $sFile = basename($sURL);
  $sBucket = basename(str_replace('/' . $sFile,'',$sURL));
  $asQuery = array(
    'AWSAccessKeyId' => $sAccessKey,
  );
  $nExpireSecs = absint( $nExpireMinutes ) * 60;
  $nExpireSecs = time() + absint( $nExpireSecs );
  $asQuery[ 'Expires' ] = $nExpireSecs;
  $sAmazonText = "GET\n\n\n{$nExpireSecs}\n/{$sBucket}/{$sFile}";
  $asQuery[ 'Signature' ] = urlencode( base64_encode( ( hash_hmac( 'sha1', utf8_encode( $sAmazonText ), $sSecretKey, TRUE ) ) ) );
  $s = add_query_arg( $asQuery, "https://s3.amazonaws.com/{$sBucket}/{$sFile}" );
  return esc_url($s);
}

Answer 1

我只需要改变解析URL的方式。

function encodeS3($sURL,$sAccessKey,$sSecretKey,$nExpireMinutes = 5) {
  /*
  $sFile = basename($sURL);
  $sBucket = basename(str_replace('/' . $sFile,'',$sURL));
  */
  $sURL = str_replace('https://','',$sURL);
  $sURL = str_replace('http://','',$sURL);
  $sURL = str_replace(urlencode('https://'),'',$sURL);
  $sURL = str_replace(urlencode('http://'),'',$sURL);
  $asParts = explode('/',$sURL);
  array_shift($asParts);
  $sBucket = array_shift($asParts);
  $sFile = implode('/',$asParts);

  $asQuery = array(
    'AWSAccessKeyId' => $sAccessKey,
  );
  $nExpireSecs = absint( $nExpireMinutes ) * 60;
  $nExpireSecs = time() + absint( $nExpireSecs );
  $asQuery[ 'Expires' ] = $nExpireSecs;
  $sAmazonText = "GET\n\n\n{$nExpireSecs}\n/{$sBucket}/{$sFile}";
  $asQuery[ 'Signature' ] = urlencode( base64_encode( ( hash_hmac( 'sha1', utf8_encode( $sAmazonText ), $sSecretKey, TRUE ) ) ) );
  $s = add_query_arg( $asQuery, "https://s3.amazonaws.com/{$sBucket}/{$sFile}" );
  return esc_url($s);
}

顺便说一下，上面使用了一些仅在WordPress中可用的功能。如果你需要直接的PHP，你将不得不调整它。

如何获取Amazon S3编码功能以了解存储桶中的子文件夹？

1 个答案: