backend/ruoyi-admin/src/main/java/com/ruoyi/web/line/LinePay.java

package com.ruoyi.web.line;

import java.io.IOException;
import java.io.Serializable;
import java.net.URISyntaxException;
import java.text.MessageFormat;
import java.util.UUID;

import org.apache.commons.codec.binary.Base64;
import org.apache.commons.codec.digest.HmacAlgorithms;
import org.apache.commons.codec.digest.HmacUtils;
import org.apache.hc.client5.http.classic.methods.HttpPost;
import org.apache.hc.client5.http.impl.classic.CloseableHttpClient;
import org.apache.hc.client5.http.impl.classic.HttpClients;
import org.apache.hc.core5.http.ContentType;
import org.apache.hc.core5.http.io.entity.EntityUtils;
import org.apache.hc.core5.http.io.entity.StringEntity;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;

import com.fasterxml.jackson.databind.ObjectMapper;
import com.ruoyi.web.pcApi.domain.TOrderManage;
import com.ruoyi.web.pcApi.domain.TOrderManageTotal;
import com.ruoyi.web.pcApi.service.ITOrderManageService;

@Component
public class LinePay  implements Serializable {
	
    private static final long serialVersionUID = 1L;
    /** log */
    private static final Logger log = LoggerFactory.getLogger(LinePay.class);
    
    @Autowired
    private LineConfig lineConfig;
    
    @Autowired
    private ITOrderManageService orderManageService;
    
	/**
	 * create the line pay request body.
	 * 
	 * @param orderManageTotal 订单管理-总对象
	 * @return line pay request body
	 */
	public SendBody createSendBody(TOrderManageTotal orderManageTotal, String deptName) {
		//create line pay request body
		SendBody sendBody = new SendBody();
		//订单金额
		sendBody.setAmount(orderManageTotal.getOrderMoney().intValue());
		//order id
		sendBody.setOrderId(String.valueOf(orderManageTotal.getId()));
		
		for (TOrderManage orderManage : orderManageTotal.getOrderList()) {
			
			TOrderManage order = orderManageService.selectTOrderManageById(orderManage.getId());
			
			//send order
			Orders ord = new Orders();
			//注文番号 
			ord.setId(order.getOrderNo());
			//決済金額
			ord.setAmount(order.getOrderMoney().intValue());
			//パッケージの名前(または、加盟店内の出店業者の名前)
			ord.setName(deptName);
			//add the packages
			sendBody.add(ord);
			
			OrderDetail detail = new OrderDetail();
			//販売商品の名前
			detail.setName(order.getCommodityName());
			//販売商品の画像URL
			detail.setImageUrl(order.getFaceImg());
			//商品数
			detail.setQuantity(1);
			//各商品の決済金額
			detail.setPrice(order.getOrderMoney().intValue());
			
			ord.add(detail);
			
		}
		//call back urls
		RedirectUrls callBack = new RedirectUrls();
		//confirm url
		callBack.setConfirmUrl(lineConfig.callbankConfirmUrl);
		//cancel url
		callBack.setCancelUrl(lineConfig.callbankCancelUrl);
		
		sendBody.setRedirectUrls(callBack);
		
		return sendBody;
	}
	
	/**
	 * set the header info
	 * @param request
	 * @throws URISyntaxException 
	 */
	private void setHeaderAndEntity(HttpPost request, String sendBody) throws URISyntaxException {
		String nonce = UUID.randomUUID().toString();
		request.setHeader("Content-Type", "application/json");
		request.setHeader("X-LINE-ChannelId", lineConfig.channelId);
		request.setHeader("X-LINE-Authorization-Nonce", nonce);
		
		StringBuffer message = new StringBuffer();
		//channelSecret
		message.append(lineConfig.channelSecret);
		//path
		message.append(request.getUri().getPath());
		//body
		message.append(sendBody);
		//nonce
		message.append(nonce);
		
		byte[] bytes = HmacUtils.getInitializedMac(HmacAlgorithms.HMAC_SHA_256, lineConfig.channelSecret.getBytes()).doFinal(message.toString().getBytes());
		
		byte[] byteArray = Base64.encodeBase64(bytes);
		
		request.setHeader("X-LINE-Authorization", new String(byteArray));
		
		request.setEntity(new StringEntity(sendBody, ContentType.APPLICATION_JSON));

	}
	/**
	 * line pay 
	 * @param orderManageTotal
	 */
	public LinePayAPOD pay(TOrderManageTotal orderManageTotal, String deptName) {

		//create request body
		SendBody sendBody = createSendBody(orderManageTotal, deptName);
		
		ObjectMapper mapper = new ObjectMapper();
	
		LinePayAPOD response = null;
		
		try (CloseableHttpClient client = HttpClients.createDefault()) {

			HttpPost request = new HttpPost(lineConfig.payUrl);
	
			setHeaderAndEntity(request, mapper.writeValueAsString(sendBody));
			
			response = client.execute(request, httpResponse ->
		       mapper.readValue(EntityUtils.toString(httpResponse.getEntity()), LinePayAPOD.class));
	
		   log.info(mapper.writeValueAsString(response));
		   
		} catch (IOException | URISyntaxException e) {
			
			log.error("line pay Request API エラーが発生しました。", e);
		}
		
		return response;
	}

	/**
	 * confirm line pay
	 * @param transactionId
	 * @param total
	 */
	public LinePayConfirmAPOD payConfirm(String transactionId, long total) {
		//
		ConfirmBody body = new ConfirmBody();
		
		body.setAmount(total);
		
		ObjectMapper mapper = new ObjectMapper();

		MessageFormat form = new MessageFormat(lineConfig.confirmUrl);
				
		String formatStr = form.format(new Object[] {transactionId}); 
		
		LinePayConfirmAPOD response = null;
		
		try (CloseableHttpClient client = HttpClients.createDefault()) {

			HttpPost request = new HttpPost(formatStr);
	
			setHeaderAndEntity(request, mapper.writeValueAsString(body));

			response = client.execute(request, httpResponse ->
		       mapper.readValue(EntityUtils.toString(httpResponse.getEntity()), LinePayConfirmAPOD.class));

			log.info(mapper.writeValueAsString(response));
			
		} catch (IOException | URISyntaxException e) {
			
			log.error("line pay Confirm API エラーが発生しました。", e);
		}
		
		return response;
	}

	/**
	 * 決済完了(売上確定済み)された取引を返金します。
	 * @param transactionId
	 * @param refundAmount
	 */
	public LinePayRefundAPOD payRefund(String transactionId, Long refundAmount) {
		//
		RefundBody body = new RefundBody();
		
		body.setRefundAmount(refundAmount);
		
		ObjectMapper mapper = new ObjectMapper();

		MessageFormat form = new MessageFormat(lineConfig.confirmUrl);
				
		String formatStr = form.format(new Object[] {transactionId}); 
		
		LinePayRefundAPOD response = null;
		
		try (CloseableHttpClient client = HttpClients.createDefault()) {

			HttpPost request = new HttpPost(formatStr);
	
			setHeaderAndEntity(request, mapper.writeValueAsString(body));

			response = client.execute(request, httpResponse ->
		       mapper.readValue(EntityUtils.toString(httpResponse.getEntity()), LinePayRefundAPOD.class));

			log.info(mapper.writeValueAsString(response));
			
		} catch (IOException | URISyntaxException e) {
			
			log.error("line pay Refund API エラーが発生しました。", e);
		}
		
		return response;
	}
}