i18n翻译

internal/util/oss.go

@@ -2,6 +2,18 @@ package util
 
 import (
 	"context"
+	"epic/internal/consts"
+	"fmt"
+	"io"
+	"net/http"
+	"os"
+	"path/filepath"
+	"time"
+
+	"github.com/aws/aws-sdk-go-v2/aws"
+	"github.com/aws/aws-sdk-go-v2/config"
+	"github.com/aws/aws-sdk-go-v2/credentials"
+	"github.com/aws/aws-sdk-go-v2/service/s3"
 )
 
 // DownloadAndUploadToOSS 下载网络图片并上传到OSS，返回OSS路径
@@ -9,9 +21,78 @@ import (
 // 返回: OSS上的图片URL，或错误
 func DownloadAndUploadToOSS(ctx context.Context, imageUrl string) (string, error) {
 	// 1. 下载 imageUrl 到本地临时文件
+	resp, err := http.Get(imageUrl)
+	if err != nil {
+		return "", fmt.Errorf("failed to download image: %w", err)
+	}
+	defer resp.Body.Close()
+	if resp.StatusCode != http.StatusOK {
+		return "", fmt.Errorf("failed to download image: status %d", resp.StatusCode)
+	}
+
+	tmpFile, err := os.CreateTemp("", "ossimg-*.tmp")
+	if err != nil {
+		return "", fmt.Errorf("failed to create temp file: %w", err)
+	}
+	tmpFilePath := tmpFile.Name()
+	defer func() {
+		tmpFile.Close()
+		os.Remove(tmpFilePath)
+	}()
+
+	_, err = io.Copy(tmpFile, resp.Body)
+	if err != nil {
+		return "", fmt.Errorf("failed to save image to temp file: %w", err)
+	}
+
 	// 2. 上传临时文件到OSS，获取OSS路径
-	// 3. 删除临时文件
-	// 4. 返回OSS路径
-	// TODO: 实现具体逻辑
-	return "", nil
-} 
+	accessKey := consts.S3AccessKey
+	secretKey := consts.S3SecretKey
+	bucket := consts.S3Bucket
+	region := consts.S3Region
+	endpoint := consts.S3Endpoint
+	if accessKey == "" || secretKey == "" || bucket == "" || endpoint == "" {
+		return "", fmt.Errorf("missing S3 credentials or bucket info in consts")
+	}
+
+	customResolver := aws.EndpointResolverWithOptionsFunc(func(service, region string, options ...interface{}) (aws.Endpoint, error) {
+		if service == s3.ServiceID {
+			return aws.Endpoint{URL: endpoint}, nil
+		}
+		return aws.Endpoint{}, fmt.Errorf("unknown service requested")
+	})
+	customProvider := credentials.NewStaticCredentialsProvider(accessKey, secretKey, "")
+	cfg, err := config.LoadDefaultConfig(ctx,
+		config.WithCredentialsProvider(customProvider),
+		config.WithEndpointResolverWithOptions(customResolver),
+	)
+	if err != nil {
+		return "", fmt.Errorf("failed to load S3 config: %w", err)
+	}
+	cfg.Region = region
+	s3Client := s3.NewFromConfig(cfg)
+
+	// 生成唯一的 object key
+	fileName := filepath.Base(tmpFilePath)
+	objectKey := fmt.Sprintf("images/%d_%s", time.Now().UnixNano(), fileName)
+
+	tmpFile.Seek(0, io.SeekStart)
+	_, err = tmpFile.Stat()
+	if err != nil {
+		return "", fmt.Errorf("failed to stat temp file: %w", err)
+	}
+
+	// 上传
+	_, err = s3Client.PutObject(ctx, &s3.PutObjectInput{
+		Bucket: aws.String(bucket),
+		Key:    aws.String(objectKey),
+		Body:   tmpFile,
+	})
+	if err != nil {
+		return "", fmt.Errorf("failed to upload to S3: %w", err)
+	}
+
+	// 4. 返回OSS路径（拼接URL）
+	ossUrl := fmt.Sprintf("%s/%s/%s", endpoint, bucket, objectKey)
+	return ossUrl, nil
+}