有人可以告诉我为什么下面的 php 代码会导致 InvalidClientTokenId 错误,我有点茫然。角色已分配给具有适当权限的此 EC2 实例。请原谅格式和标准,它已被简化和最小化以服务于这个简单的测试用例。
// get role credentials
$role_name = file_get_contents('http://169.254.169.254/latest/meta-data/iam/security-credentials/');
$auth = json_decode(file_get_contents('http://169.254.169.254/latest/meta-data/iam/security-credentials/'.$role_name),true);
print_r($auth);
// fixed params
$params = array();
$params['AWSAccessKeyId'] = $auth['AccessKeyId'];
$params['SignatureMethod'] = 'HmacSHA256';
$params['SignatureVersion'] = '2';
$params['Timestamp'] = gmdate('Y-m-d\TH:i:s\Z');
// SDB API
$params['Version'] = '2009-04-15';
$params['Action'] = 'Select';
$params['SelectExpression'] = 'select * from `MYSDBDOMAIN`';
// format params into a string according to aws requirements
uksort($params, 'strcmp'); $params_str = '';
foreach ($params as $key => $val){ $params_str .= rawurlencode($key).'='.rawurlencode($val).'&'; }
$params_str = str_replace('%7E', '~',$params_str); $params_str = substr($params_str, 0, -1);
// create signature
$signature = urlencode(base64_encode(hash_hmac('sha256', "GET\nsdb.ap-southeast-1.amazonaws.com\n/\n".$params_str, $auth['SecretAccessKey'], true)));
// create full url
$url = "https://sdb.ap-southeast-1.amazonaws.com/?$params_str&Signature=$signature";
// Initiate curl and set options
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_HTTPHEADER, array('Connection: keep-alive', 'Keep-Alive: 300', 'x-amz-security-token: '.$auth['Token']));
// get the result into an array and print
$result = json_decode(json_encode(simplexml_load_string(curl_exec($ch))),true);
print_r($result);
这导致:
Array
(
[Code] => Success
[LastUpdated] => 2013-10-18T02:31:12Z
[Type] => AWS-HMAC
[AccessKeyId] => +MYACCESSKEY+
[SecretAccessKey] => +MYSECRET+
[Token] => +MYTOKEN+
[Expiration] => 2013-10-18T09:04:14Z
)
Array
(
[Errors] => Array
(
[Error] => Array
(
[Code] => InvalidClientTokenId
[Message] => The AWS Access Key Id you provided does not exist in our records.
)
)
[RequestID] => d0a23941-b9ff-ab89-e357-ab8122ee7307
)
谢谢