Oracle中使用hash_hmac() 函式報錯問題/以及Oracle遇到Oauth1.0授權和oauth_signature生成規則

<?php

/**************Agent Authentication**************/

require_once(get_cfg_var("doc_root") . "/ConnectPHP/Connect_init.php" );

initConnectAPI("admin", "adminpwd");

/******Use the “Crypto” versioned namespace*********/

use RightNow\Connect\Crypto\v1_4 as Crypto;  //這裡引入

try{

     $md = new Crypto\MessageDigest();

     $md->Algorithm->ID = 3; //SHA256

     $md->Text = "This is a message to be digested using SHA256";

     echo "Data : " .$md->Text . "<br>";

     $md->hash();

     $hashed_text = $md->HashText;

     echo "Output : " .bin2Hex($hashed_text)."<br>";

}

catch (Exception $err ){

     echo $err->getMessage();

}

?>

可以使用以下程式碼在 PHP 中複製此功能：

/*

The sample code in this document or accessed through this document is not

certified or supported by Oracle. It is intended for educational or testing

purposes only. Use of this sample code implies acceptance of the License Agreement

at https://www.oracle.com/downloads/licenses/standard-license.html .

*/

function standard_crypt($msg){

  try{

     $md = new Crypto\MessageDigest();

     $md->Algorithm->ID = 3; // SHA-256

     $md->Text = $msg;

     $md->hash();

     $hashed_text = $md->HashText;

     return ($hashed_text);

  } catch (Exception $err ){

       echo $err->getMessage();

  }

}

// Create Signature Hash

function custom_hmac($algo, $data, $key)

{

    $size = 64;

    $pack = chr(0x00);

    if (strlen($key) > $size) {

        $key = $algo($key);

    } else {

        $key = $key . str_repeat(chr(0x00), $size - strlen($key));

    }

    // Outter and Inner pad

    $opad = str_repeat(chr(0x5C), $size);

    $ipad = str_repeat(chr(0x36), $size);

    $k_ipad = $ipad ^ $key;

    $k_opad = $opad ^ $key;

    return $algo($k_opad.$algo($k_ipad.$data));

}

$data = "foo";

$secret = "bar";

$bin_hash = custom_hmac('standard_crypt', $data, $secret, false);

echo "HASH: ".bin2hex($bin_hash); //最後從二進位制轉換成十六進位制，但是一般需要的是 base64_encode(),把bin2hex替換就好。

　function oauth_hmacsha1($key, $data) {

      return base64_encode(hmacsha1($key, $data));

  　　}

  function hmacsha1($key,$data) {

      $blocksize=64;

      $hashfunc='sha1';

      if (strlen($key)>$blocksize)

          $key=pack('H*', $hashfunc($key));

      $key=str_pad($key,$blocksize,chr(0x00));

      $ipad=str_repeat(chr(0x36),$blocksize);

      $opad=str_repeat(chr(0x5c),$blocksize);

      $hmac = pack(

                  'H*',$hashfunc(

                      ($key^$opad).pack(

                          'H*',$hashfunc(

                              ($key^$ipad).$data

                          )

                      )

                  )

              );

      return $hmac;

  }