Question

这里我附上代码和一个由完整代码组成的链接，看看它： - 我的授权标题接收与payeezy的官方网站中提到的长度相同。我也使我的hmacString与此链接（https://developer.payeezy.com/content/hmac-validation-failure）中提到的顺序相同。完成所有这些后，我仍然遇到同样的问题

public static String excutePost(String urlParameters) throws IOException {
        URL url = new URL("https://api-cert.payeezy.com/v1/transactions");
        HttpURLConnection connection = (HttpURLConnection) url.openConnection();
        try {
            // Create connection
            connection.setRequestMethod("POST");
            connection.setRequestProperty("Content-Type", headerContentType);
            connection.setRequestProperty("apikey ", apikey);
            connection.setRequestProperty("token", MerchantToken);
            connection
                    .setRequestProperty("Authorization", authorizationHeader);
            connection.setRequestProperty("timestamp", ""+epoch);
            connection.setRequestProperty("nonce", ""+nonce);
            connection.setDoOutput(true);
            connection.setReadTimeout(30000);

            // Send request
            DataOutputStream wr = new DataOutputStream(connection.getOutputStream());
            wr.writeBytes(urlParameters);
            wr.flush();
            wr.close();

            // Get Response
            InputStream is = connection.getInputStream();
            BufferedReader rd = new BufferedReader(new InputStreamReader(is));
            String line;
            StringBuffer response = new StringBuffer();
            while ((line = rd.readLine()) != null) {
                response.append(line);
                response.append('\r');
            }
            rd.close();
            return response.toString();

        } catch (Exception e) {

            e.printStackTrace();
            return null;

        } finally {

            if (connection != null) {
                connection.disconnect();
            }
        }
    }

这是完整的java类代码： - http://piratepad.net/ep/pad/view/ro.WwZ9v6FX1a6/latest

Answer 1

我终于通过在api url hit中发送直接String作为参数来解决这个错误。我发布了一些解决我错误的代码： -

＆＃13;

String str = "{\"amount\":\"1299\",\"merchant_ref\":\"Astonishing-Sale\",\"transaction_type\":\"authorize\",\"credit_card\":{\"card_number\":\"4788250000028291\",\"cvv\":\"123\",\"exp_date\": \"1020\",\"cardholder_name\": \"John Smith\",\"type\": \"visa\"},\"method\": \"credit_card\",\"currency_code\": \"USD\"}";

＆＃13;

现在这个String将用于生成我的授权密钥。 整个过程定义如下： -

＆＃13;

getSecurityKeys(apikey, pzsecret,str);

private static Map<String, String> getSecurityKeys(String appId,
			String secureId, String payLoad) throws Exception {
		Map<String, String> returnMap = new HashMap<String, String>();
		try {
			returnMap.put(NONCE, Long.toString(nonce));
			returnMap.put(APIKEY, appId);
			returnMap.put(TIMESTAMP, Long.toString(System.currentTimeMillis()));
			returnMap.put(TOKEN, MerchantToken);
			returnMap.put(APISECRET, pzsecret);
			returnMap.put(PAYLOAD, payLoad);
			returnMap.put(AUTHORIZE, getMacValue(returnMap));
			authorizationHeader = returnMap.get(AUTHORIZE);
			return returnMap;

		} catch (NoSuchAlgorithmException e) {
			throw new RuntimeException(e.getMessage(), e);
		}
	}

	public static String getMacValue(Map<String, String> data) throws Exception {
		Mac mac = Mac.getInstance("HmacSHA256");
		String apiSecret = data.get(APISECRET);
		SecretKeySpec secret_key = new SecretKeySpec(apiSecret.getBytes(),
				"HmacSHA256");
		mac.init(secret_key);
		StringBuilder buff = new StringBuilder();
		buff.append(data.get(APIKEY)).append(data.get(NONCE))
				.append(data.get(TIMESTAMP));
		if (data.get(TOKEN) != null)
			buff.append(data.get(TOKEN));
		if (data.get(PAYLOAD) != null)
			buff.append(data.get(PAYLOAD));
		byte[] macHash = mac.doFinal(buff.toString().getBytes("UTF-8"));
		String authorizeString = Base64.encodeBase64String(toHex(macHash));
		return authorizeString;
	}

＆＃13;

＆＃13; 现在最后你可以在java中点击post api时传递直接字符串（即str）作为参数。

希望有助于其他人在不使用任何依赖项的情况下集成payeezy支付网关。快乐编码!!!

Answer 2

您必须为每个请求生成新的timestamp和nonce，即每个新请求必须具有唯一的timestamp和nonce

在java中，timestamp可以设置为System.currentTimeMillis()，nonce可以使用UUID（UUID.randomUUID().toString()）进行设置。

最后，请确保您的Authorization已正确计算（我看到他们使用API密钥使用HMAC-SHA1）。

我希望这会有所帮助。

修改：如有疑问，这是您的HMAC-SHA1授权值不正确。运行代码时我得到以下响应（经过我自己的编码）。

Connection = keep-alive
Content-Length = 51
Content-Type = application/json
{"code":"403", "message":"HMAC validation Failure"}

确保正确计算HMAC-SHA1值（如上所述）。

请参阅下面（更新的）您可以自行编译和运行的代码。现在需要Java 8，因为它带有Base 64编码器/解码器。

import java.io.BufferedReader;
import java.io.DataOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.net.URI;
import java.net.URL;
import java.security.MessageDigest;
import java.security.SecureRandom;
import java.text.SimpleDateFormat;
import java.util.Base64;
import java.util.Date;
import java.util.TimeZone;

import javax.crypto.Mac;
import javax.crypto.spec.SecretKeySpec;

//import org.apache.commons.codec.binary.Base64;

public class MainJava {
    private static final String    myEncoding            = "UTF-8";
    private static final String    myMessageDigest        = "SHA-1";
    private static final String    myKeySpec            = "HmacSHA1";
    private static String        NEWLINE                = "\n";
    private static String        authorizationHeader;
    private static String        contentSha1;
    // private static String keyId = "230297";
    // private static String hmacKey = "tcwR9r1OR85V9bcV5tc7a9d1XkWigjqY";
    private static String        ApiSecretkey        = "0779eb593286b278aaf8cfcf83c8e33bc757d53a8a642b53d24d63bda844da5b";
    private static String        MerchantToken        = "fdoa-a480ce8951daa73262734cf102641994c1e55e7cdf4c02b6";
    private static String        reportingToken        = "e56a0223d0415067";
    private static String        apikey                = "XSjbv8PLDINJ28qXLEYAhcrz8rxKXQ4Y";
    private static long            nonce;
    public static String        headerContentType    = "application/json";
    private static long            epoch;

    public static void main(String[] args) throws Exception {
        String json_string_dataTwo = "{\"type\":\"visa\",\"cardholder_name\":\"John Smith\",\"card_number\":\"4788250000028291\",\"exp_date\":1020,\"cvv\":\"123\"}";
        // String json_string =
        // "{\"gateway_id\":\"AI2010-01\",\"password\":\"w226638qtot48xu503zumwt2iy46g26q\",\"transaction_type\":\"00\",\"amount\":10,\"cardholder_name\":\"test\",\"cc_number\":\"4111111111111111\",\"cc_expiry\":\"1219\"}";
        String json_string_data = "{\"merchant_ref\":\"Astonishing-Sale\",\"transaction_type\":\"authorize\",\"method\":\"credit_card\",\"amount\":1299,\"currency_code\":\"USD\",\"credit_card\":"
                + json_string_dataTwo + "}";
        // "{\r\n  \"merchant_ref\": \"Astonishing-Sale\",\r\n  \"transaction_type\": \"authorize\",\r\n  \"method\": \"credit_card\",\r\n  \"amount\": \"1299\",\r\n  \"currency_code\": \"USD\",\r\n  \"credit_card\": {\r\n    \"type\": \"visa\",\r\n    \"cardholder_name\": \"John Smith\",\r\n    \"card_number\": \"4788250000028291\",\r\n    \"exp_date\": \"1020\",\r\n    \"cvv\": \"123\"\r\n  }\r\n}";

        epoch = System.currentTimeMillis();// / 1000;
        // nonce = UUID.randomUUID().toString();
        nonce = Math.abs(SecureRandom.getInstance("SHA1PRNG").nextLong());
        contentSha1 = contentSha1(json_string_data);
        authorizationHeader = authHeader(epoch, contentSha1);
        System.out.println(excutePost(json_string_data));
    }

    private static String authHeader(long hashTime, String contentSha1) {
        String authorizationHeader = null;
        try {
            String hmacString = "POST" + NEWLINE + "application/json" + NEWLINE + contentSha1 + NEWLINE + hashTime + NEWLINE + apikey + NEWLINE
                    + new URI("https://api-cert.payeezy.com/v1/transactions");

            return sha1(hmacString, ApiSecretkey);
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }

    private static String contentSha1(String content) throws Exception {
        MessageDigest md = MessageDigest.getInstance("SHA-1");
        byte[] sha1hash = new byte[40];
        md.update(content.getBytes("UTF-8"), 0, content.length());
        sha1hash = md.digest();
        return convertToHex(sha1hash);
    }

    private static String convertToHex(byte[] data) {
        StringBuffer buf = new StringBuffer();
        for (int i = 0; i < data.length; i++) {
            int halfbyte = data[i] >>> 4 & 0xF;
            int two_halfs = 0;
            do {
                if ((0 <= halfbyte) && (halfbyte <= 9))
                    buf.append((char) (48 + halfbyte));
                else
                    buf.append((char) (97 + (halfbyte - 10)));
                halfbyte = data[i] & 0xF;
            } while (two_halfs++ < 1);
        }
        return buf.toString();
    }

//     private static String sha1(String s, String keyString) {
//     Base64 base64 = new Base64();
//     try {
//     SecretKeySpec key = new SecretKeySpec(keyString.getBytes("UTF-8"),
//     "HmacSHA1");
//     Mac mac = Mac.getInstance("HmacSHA1");
//     mac.init(key);
//     byte[] bytes = mac.doFinal(s.getBytes("UTF-8"));
//    
//     return new String(base64.encode(bytes));
//     } catch (Exception e) {
//     throw new RuntimeException(e);
//     }
//     }
    private static String sha1(String s, String keyString) {
        byte[] bytes = null;
        try {
            Mac sha256_HMAC = Mac.getInstance("HmacSHA256");
            SecretKeySpec secret_key = new SecretKeySpec(keyString.getBytes(), "HmacSHA256");
            sha256_HMAC.init(secret_key);
            bytes = sha256_HMAC.doFinal(s.getBytes("UTF-8"));
            //return new String(Base64.encodeBase64String(bytes));
        } catch (Exception e) {
            System.out.println("Error");
        }
        return  Base64.getEncoder().encodeToString(bytes);
    }

    private static String hashTime() {
        String time = getUTCFormattedDate("yyyy-MM-dd'T'HH:mm:ss'Z'");

        return time;
    }

    private static String getUTCFormattedDate(String format) {
        SimpleDateFormat dateFormat = new SimpleDateFormat(format);
        dateFormat.setTimeZone(TimeZone.getTimeZone("UTC"));
        return dateFormat.format(new Date());
    }

    public static String excutePost(String urlParameters) throws IOException {
    System.out.println(urlParameters);
    System.out.println(headerContentType);
    System.out.println(MerchantToken);
    System.out.println(authorizationHeader);
    System.out.println(epoch);
    System.out.println(nonce);
        URL url = new URL("https://api-cert.payeezy.com/v1/transactions");
        HttpURLConnection connection = (HttpURLConnection) url.openConnection();
        try {
            // Create connection
            connection.setRequestMethod("POST");
            connection.setRequestProperty("Content-Type", headerContentType);
            connection.setRequestProperty("apikey ", apikey);
            connection.setRequestProperty("token", MerchantToken);
            connection.setRequestProperty("Authorization", authorizationHeader);
            connection.setRequestProperty("timestamp", "" + epoch);
            connection.setRequestProperty("nonce", "" + nonce);
            connection.setDoOutput(true);
            connection.setReadTimeout(30000);

            // Send request
            DataOutputStream wr = new DataOutputStream(connection.getOutputStream());
            wr.writeBytes(urlParameters);
            wr.flush();
            wr.close();

            // Get Response
            InputStream is = null;
            int statusCode = connection.getResponseCode();

        try {
            is = connection.getInputStream();
        } catch (IOException e) {
            if (statusCode >= 400) {
                is = connection.getErrorStream();
            }
        }
        BufferedReader rd = new BufferedReader(new InputStreamReader(is));
            String line;
            StringBuffer response = new StringBuffer();
            while ((line = rd.readLine()) != null) {
                response.append(line);
                response.append('\r');
            }
            rd.close();
            return response.toString();

        } catch (Exception e) {

            e.printStackTrace();
            return null;

        } finally {

            if (connection != null) {
                connection.disconnect();
            }
        }
    }

}

Answer 3

我唯一的问题是字符编码，我假设是UTF-8。我怀疑错误在其他地方。

        // Send request
        byte[] data = urlParameters.getBytes(StandardCharsets.UTF_8);
        BufferedOutputStream wr = new BufferedOutputStream(connection.getOutputStream());
        wr.writeBytes(data);
        wr.close();

        // Get Response
        InputStream is = connection.getInputStream();
        BufferedReader rd = new BufferedReader(new InputStreamReader(is,
                StandardCharsets.UTF_8));

并且\r，CR，不作为行分隔符（除旧MacOS之外）。

           response.append("\r\n"); // Or '\n'

错误： - {＆＃34;代码＆＃34;：＆＃34; 403＆＃34;，＆＃34;消息＆＃34;：＆＃34; HMAC验证失败＆＃34;}

3 个答案: