public function getAuthFor($sPath)
{
$sPath = $sPath[0] == '/' ? $sPath : '/' . $sPath;
$iExpires = time() + 5 * 60;
$sToSign = "GET\n\n\n{$iExpires}\n{$sPath}";
$oCrypt = new HMAC($this->sSecret, 'sha1');
$sSignature = $oCrypt->hash($sToSign);
$sSignature = $this->base64($sSignature);
$sAuth = '?';
$sAuth .= 'AWSAccessKeyId=' . $this->sKey . '&';
$sAuth .= 'Signature=' . urlencode($sSignature) . '&';
$sAuth .= 'Expires=' . $iExpires;
return $sAuth;
}
protected function sign($hParams)
{
$hParams['Version'] = $this->sVersion;
$hParams['AWSAccessKeyId'] = $this->sKey;
$hParams['Expires'] = date('c', time() + 120);
$hParams['SignatureVersion'] = 1;
// TODO redo this part
$hSignedParams = $hParams;
$aKeys = array_keys($hSignedParams);
foreach ($aKeys as $i => $key) {
$aKeys[$i] = strtolower($key);
$hMap[strtolower($key)] = $key;
}
sort($aKeys);
$sString = '';
foreach ($aKeys as $key) {
$val = $hSignedParams[$hMap[$key]];
$sString .= $hMap[$key] . $val;
}
$oCrypt = new HMAC($this->sSecret, 'sha1');
$sSignature = $oCrypt->hash($sString);
$sSignature = $this->hex2b64($sSignature);
$hParams['Signature'] = $sSignature;
return $hParams;
}
