Feat: #196 구글 인앱 결제(영수증 검증) API 추가 + CI/CD 파일에 google-acoount-key 생성 …

…부분 추가

.github/workflows/cicd-ec2.yml

@@ -66,6 +66,14 @@ jobs:
           echo "${{ secrets.APPLICATION_STAGING }}" > ./application-staging.yml
         shell: bash
 
+      - name: Create Google key.json file
+        if: contains(github.ref, 'staging') || contains(github.ref, 'main-test')
+        run: |
+          cd ./genti-api/src/main/resources
+          mkdir -p ./google
+          echo "${{ secrets.GOOGLE_ACCOUNT_KEY }}" > ./google/key.json
+        shell: bash
+
       - name: make apple private key
         run: |
           cd ./genti-external/src/main

.gitignore

@@ -63,7 +63,7 @@ logs/
 firebase-genti.json
 
 *.pem
-
+/genti-api/src/main/resources/jsonkey/
 AuthKey_ZRZMQQX883.p8
 /genti-api/src/main/resources/static/swagger.json
 update-github-secret.sh

genti-api/build.gradle

@@ -22,6 +22,10 @@ dependencies {
     // redis
     implementation 'org.springframework.boot:spring-boot-starter-data-redis'
 
+    compileOnly("com.google.api-client:google-api-client:1.33.0")
+    implementation 'com.google.auth:google-auth-library-oauth2-http:1.6.0'
+    compileOnly('com.google.apis:google-api-services-androidpublisher:v2-rev22-1.21.0')
+
     // test && test h2
     testImplementation 'org.springframework.boot:spring-boot-starter-test'
     testImplementation 'org.springframework.security:spring-security-test'

genti-api/src/main/java/com/gt/genti/purchase/controller/UserPurchaseController.java

@@ -0,0 +1,26 @@
+package com.gt.genti.purchase.controller;
+
+import com.gt.genti.purchase.dto.request.PurchaseRequestDto;
+import com.gt.genti.purchase.service.InAppPurchaseService;
+import com.gt.genti.response.GentiResponse;
+import com.gt.genti.user.model.AuthUser;
+import lombok.RequiredArgsConstructor;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+@RequestMapping("/api/v1/users/in-app-purchases")
+@RequiredArgsConstructor
+public class UserPurchaseController {
+
+    private final InAppPurchaseService inAppPurchaseService;
+
+    @PostMapping("/google/receipt-validation")
+    public ResponseEntity<GentiResponse.ApiResult<Boolean>> validateReceipt(
+            @AuthUser Long userId,
+            PurchaseRequestDto purchaseRequestDto) {
+        return GentiResponse.success(inAppPurchaseService.validateReceipt(userId, purchaseRequestDto));
+    }
+}

genti-api/src/main/java/com/gt/genti/purchase/dto/request/PurchaseRequestDto.java

@@ -0,0 +1,10 @@
+package com.gt.genti.purchase.dto.request;
+
+import lombok.Getter;
+
+@Getter
+public class PurchaseRequestDto {
+    private String packageName; //인앱 상품이 판매된 애플리케이션의 패키지 이름
+    private String productId; //인앱 상품 SKU
+    private String purchaseToken; //안드로이드에서 받아올 구매 토큰
+}

genti-api/src/main/java/com/gt/genti/purchase/service/InAppPurchaseService.java

@@ -0,0 +1,78 @@
+package com.gt.genti.purchase.service;
+
+import com.google.api.client.googleapis.javanet.GoogleNetHttpTransport;
+import com.google.api.client.http.HttpTransport;
+import com.google.api.client.json.JsonFactory;
+import com.google.api.client.json.gson.GsonFactory;
+import com.google.api.services.androidpublisher.AndroidPublisher;
+import com.google.api.services.androidpublisher.AndroidPublisherScopes;
+import com.google.api.services.androidpublisher.model.ProductPurchase;
+import com.google.auth.http.HttpCredentialsAdapter;
+import com.google.auth.oauth2.GoogleCredentials;
+import com.gt.genti.purchase.dto.request.PurchaseRequestDto;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.core.io.ClassPathResource;
+import org.springframework.stereotype.Service;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.security.GeneralSecurityException;
+
+@Service
+public class InAppPurchaseService {
+
+    @Value("{google-account.file-path}")
+    private String googleAccountFilePath;
+
+    @Value("{google-application.package-name}")
+    private String googleApplicationPackageName;
+
+    public Boolean validateReceipt(Long userId, PurchaseRequestDto purchaseRequestDto) {
+
+        try {
+            // ================= Google Credential 생성 =================
+            JsonFactory JSON_FACTORY = GsonFactory.getDefaultInstance();
+            HttpTransport httpTransport = GoogleNetHttpTransport.newTrustedTransport();
+
+            InputStream inputStream = new ClassPathResource(googleAccountFilePath).getInputStream();
+            GoogleCredentials credentials = GoogleCredentials
+                    .fromStream(inputStream)
+                    .createScoped(AndroidPublisherScopes.ANDROIDPUBLISHER);
+
+            // ======================== API 호출 ========================
+            AndroidPublisher.Builder builder = new AndroidPublisher.Builder(httpTransport, JSON_FACTORY, new HttpCredentialsAdapter(credentials));
+            AndroidPublisher publisher = builder.setApplicationName(googleApplicationPackageName).build();
+            AndroidPublisher.Purchases.Products.Get gas = publisher.purchases()
+                    .products()
+                    .get(
+                            "packageName",
+                            "productId",
+                            "purchaseToken");
+            ProductPurchase purchase = gas.execute();
+
+            AndroidPublisher.Purchases.Products.Get get = publisher.purchases().products()
+                    .get(purchaseRequestDto.getPackageName(), purchaseRequestDto.getProductId(), purchaseRequestDto.getPurchaseToken()); //inapp 아이템의 구매 및 소모 상태 확인
+            ProductPurchase productPurchase = get.execute(); //검증 결과
+            System.out.println(productPurchase.toPrettyString());
+
+            // 인앱 상품의 소비 상태. 0 아직 소비 안됨(Yet to be consumed) / 1 소비됨(Consumed)
+            Integer consumptionState = productPurchase.getConsumptionState();
+
+            // 개발자가 지정한 임의 문자열 정보
+            String developerPayload = productPurchase.getDeveloperPayload();
+
+            // 구매 상태. 0 구매완료 / 1 취소됨
+            Integer purchaseState = productPurchase.getPurchaseState();
+            if(purchaseState == 1){
+                return false;
+            }
+
+            // 상품이 구매된 시각. 타임스탬프 형태
+            Long purchaseTimeMillis = productPurchase.getPurchaseTimeMillis();
+
+            return true;
+        } catch (IOException | GeneralSecurityException e) {
+            return false;
+        }
+    }
+}