我正在尝试使用描述为here的API。它使用基于密钥的HMAC SHA512授权。使用HMAC SHA512从API获取数据 - Swift
有实现的PHP的例子:
function bitmarket_api($method, $params = array())
{
$key = "klucz_jawny";
$secret = "klucz_tajny";
$params["method"] = $method;
$params["tonce"] = time();
$post = http_build_query($params, "", "&");
$sign = hash_hmac("sha512", $post, $secret);
$headers = array(
"API-Key: " . $key,
"API-Hash: " . $sign,
);
$curl = curl_init();
curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
curl_setopt($curl, CURLOPT_URL, "https://www.bitmarket.pl/api2/");
curl_setopt($curl, CURLOPT_POST, true);
curl_setopt($curl, CURLOPT_POSTFIELDS, $post);
curl_setopt($curl, CURLOPT_HTTPHEADER, $headers);
$ret = curl_exec($curl);
return json_decode($ret);
}
然后我试图实现它在斯威夫特:
import Alamofire
import CryptoSwift
func getRawJSON(method: String, params: [String]) -> String {
let publicKey = "publicKeyHere"
let secretKey = "secretKeyHere"
let APIURL = "https://www.bitmarket.pl/api2/"
var params = [
"method": method,
"tonce:": NSDate().timeIntervalSince1970
] as [String : Any]
let hmac: Array<UInt8> = try! HMAC(key: secretKey.utf8.map({$0}), variant: .sha512).authenticate(params)
var headers = [
"API-Key": publicKey,
"API-Hash": hmac
] as [String : Any]
}
你可能注意到了,有没有Alamofire使用情况获取数据但是因为我在准备发送数据时遇到了问题。我的意思是我已经搞砸了CryptoSwift的东西,因为我得到这个错误:Cannot convert value of type '[String : Any]' to expected argument type 'Array<UInt8>'
当我试图声明hmac
变量。
如何解决? 我可能必须以某种方式将params
数组转换为Array<UInt8
,但我不知道该怎么做。我不确定是否一切正确。
编辑: 感谢Martin R,实际的代码是:
func getRawJSON(method: String, paramether: String) {
let publicKey = "publicKeyHere"
let secretKey = "secretKeyHere"
let APIURL = "https://www.bitmarket.pl/api2/"
let query = NSURLComponents()
query.queryItems = [NSURLQueryItem(name: "method", value: method) as URLQueryItem,
NSURLQueryItem(name: "tonce", value: String(Int(NSDate().timeIntervalSince1970))) as URLQueryItem]
let requestString = query.query!
let requestData = Array(requestString.utf8)
let params = [
"method": method,
"tonce:": String(Int(NSDate().timeIntervalSince1970))
] as [String : Any]
let hmac: Array<UInt8> = try! HMAC(key: secretKey.utf8.map({$0}), variant: .sha512).authenticate(requestData)
let hmacData = Data(bytes: hmac)
let hmacString = hmacData.base64EncodedString()
let headers = [
"API-Key": publicKey,
"API-Hash": hmacString
] as [String : String]
Alamofire.request(APIURL, withMethod: .post, parameters: params, encoding: .url, headers: headers)
.responseJSON { response in
print(response)
}
}
不幸的是,调用函数(getRawJSON(method: "info", paramether: "")
)后,我获取一个错误一个JSON:
{
error = 502;
errorMsg = "Invalid message hash";
time = 1472910139;
}
我的散列有什么问题?
巨大的感谢,帮了不少忙。现在我遇到了散列问题,用更多细节编辑了我的问题。 – kkarol
@kkarol:比较PHP代码中'$ post'和'$ sign'值与Swift代码中的'requestString'和'hmac'。 –
'requestString'等于'$ post',但是'$ sign'与'hmac'和'hmacString'不同。 'hmacString'是base64,而'$ sign'包含例如'450043310da274122369bfc0ca621e47fb0b03857746c096a944748585fcd3280744ee4633711f98bbfe3bf0c199deec329a64b723799e597304cfd683ac40e6'。不知道如何将'Array'转换为正确的格式。 –
kkarol