228 lines
6.5 KiB
Go
228 lines
6.5 KiB
Go
package api
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import (
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"fmt"
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"io"
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"os"
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"path/filepath"
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"strings"
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"contentSecurityDemo/conf"
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"contentSecurityDemo/internal/model"
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openapi "github.com/alibabacloud-go/darabonba-openapi/v2/client"
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green20220302 "github.com/alibabacloud-go/green-20220302/v2/client"
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util "github.com/alibabacloud-go/tea-utils/v2/service"
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"github.com/alibabacloud-go/tea/tea"
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)
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// ImageScanner 图片内容安全扫描器2.0
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type ImageScanner struct {
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Client *green20220302.Client
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Config *conf.Config
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}
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// ImageServiceType 图片审核服务类型
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type ImageServiceType string
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const (
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// BaselineCheckGlobal 通用基线检测
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BaselineCheckGlobal ImageServiceType = "baselineCheck_global"
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// PostImageCheckByVLGlobal 大小模型融合图片审核服务（专业版）
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PostImageCheckByVLGlobal ImageServiceType = "postImageCheckByVL_global"
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// AigcDetectorGlobal AI生成图片鉴别
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AigcDetectorGlobal ImageServiceType = "aigcDetector_global"
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)
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// NewImageScanner 创建图片扫描器
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func NewImageScanner(config *conf.Config) (*ImageScanner, error) {
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// 获取有效的访问凭证
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accessKeyID, accessKeySecret, securityToken := config.GetEffectiveCredentials()
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// 创建配置
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clientConfig := &openapi.Config{
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AccessKeyId: tea.String(accessKeyID),
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AccessKeySecret: tea.String(accessKeySecret),
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SecurityToken: tea.String(securityToken),
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RegionId: tea.String(config.Region),
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Endpoint: tea.String(config.Endpoint),
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}
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// 创建客户端
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client, err := green20220302.NewClient(clientConfig)
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if err != nil {
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return nil, fmt.Errorf("创建客户端失败: %v", err)
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}
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return &ImageScanner{
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Client: client,
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Config: config,
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}, nil
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}
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// ScanImageByURL 通过URL扫描图片
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func (s *ImageScanner) ScanImageByURL(imageURL string, dataID string, serviceType ImageServiceType) (*model.ImageScanResponse, error) {
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// 创建运行时配置
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runtime := &util.RuntimeOptions{}
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runtime.ReadTimeout = tea.Int(10000)
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runtime.ConnectTimeout = tea.Int(10000)
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// 构建请求参数
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imageScanRequest := &green20220302.ImageModerationRequest{
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Service: tea.String(string(serviceType)),
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ServiceParameters: tea.String(fmt.Sprintf(`{"imageUrl":"%s","dataId":"%s"}`, imageURL, dataID)),
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}
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// 调用API
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response, err := s.Client.ImageModerationWithOptions(imageScanRequest, runtime)
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if err != nil {
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return nil, fmt.Errorf("请求失败: %v", err)
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}
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// 转换响应格式
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scanResponse := &model.ImageScanResponse{
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Code: tea.Int32Value(response.Body.Code),
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Message: tea.StringValue(response.Body.Msg),
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Data: make([]model.ImageScanData, 0),
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}
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// 创建单个数据项
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scanData := model.ImageScanData{
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DataID: *response.Body.Data.DataId,
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Code: tea.Int32Value(response.Body.Code),
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Message: "success",
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Results: make([]*green20220302.ImageModerationResponseBodyDataResult, 0),
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}
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// 如果有结果数据，进行转换
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if response.Body.Data != nil {
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data := response.Body.Data
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scanData.Results = append(scanData.Results, data.Result...)
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}
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scanResponse.Data = append(scanResponse.Data, scanData)
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return scanResponse, nil
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}
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// ScanImageByFile 通过文件扫描图片
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func (s *ImageScanner) ScanImageByFile(filePath string, dataID string, serviceType ImageServiceType) (*model.ImageScanResponse, error) {
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// 读取文件
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file, err := os.Open(filePath)
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if err != nil {
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return nil, fmt.Errorf("打开文件失败: %v", err)
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}
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defer file.Close()
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// 检查文件大小（限制为9MB）
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fileInfo, err := file.Stat()
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if err != nil {
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return nil, fmt.Errorf("获取文件信息失败: %v", err)
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}
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if fileInfo.Size() > 9*1024*1024 {
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return nil, fmt.Errorf("文件大小超过9MB限制")
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}
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// 读取文件内容并转换为base64
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fileContent, err := io.ReadAll(file)
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if err != nil {
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return nil, fmt.Errorf("读取文件失败: %v", err)
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}
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// 检查文件类型 - 2.0版本支持更多格式
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ext := strings.ToLower(filepath.Ext(filePath))
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supportedExts := []string{".jpg", ".jpeg", ".png", ".bmp", ".gif", ".webp", ".tiff", ".svg", ".ico", ".heic"}
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isSupported := false
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for _, supportedExt := range supportedExts {
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if ext == supportedExt {
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isSupported = true
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break
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}
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}
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if !isSupported {
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return nil, fmt.Errorf("不支持的文件格式: %s", ext)
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}
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// 将文件内容转换为base64
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base64Content := fmt.Sprintf("data:image/%s;base64,%s", ext[1:],
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strings.ReplaceAll(string(fileContent), "\n", ""))
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// 创建运行时配置
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runtime := &util.RuntimeOptions{}
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runtime.ReadTimeout = tea.Int(10000)
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runtime.ConnectTimeout = tea.Int(10000)
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// 构建请求参数
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imageScanRequest := &green20220302.ImageModerationRequest{
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Service: tea.String(string(serviceType)),
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ServiceParameters: tea.String(fmt.Sprintf(`{"content":"%s"}`, base64Content)),
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}
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// 调用API
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response, err := s.Client.ImageModerationWithOptions(imageScanRequest, runtime)
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if err != nil {
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return nil, fmt.Errorf("请求失败: %v", err)
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}
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// 转换响应格式
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scanResponse := &model.ImageScanResponse{
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Code: tea.Int32Value(response.Body.Code),
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Message: tea.StringValue(response.Body.Msg),
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Data: make([]model.ImageScanData, 0),
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}
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// 创建单个数据项
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scanData := model.ImageScanData{
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DataID: dataID,
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Code: tea.Int32Value(response.Body.Code),
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Results: make([]*green20220302.ImageModerationResponseBodyDataResult, 0),
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}
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if response.Body.Code == tea.Int32(200) {
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scanData.Message = "success"
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} else {
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scanData.Message = tea.StringValue(response.Body.Msg)
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}
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// 如果有结果数据，进行转换
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if response.Body.Data != nil {
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// 这里需要根据实际的响应结构进行调整
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// 暂时创建一个基本的结果结构
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data := response.Body.Data
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scanData.Results = append(scanData.Results, data.Result...)
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}
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scanResponse.Data = append(scanResponse.Data, scanData)
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return scanResponse, nil
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}
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// PrintResult 打印扫描结果
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func (s *ImageScanner) PrintResult(response *model.ImageScanResponse) {
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fmt.Println("=== 图片内容安全审核结果===")
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fmt.Printf("状态码: %d\n", response.Code)
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fmt.Printf("消息: %s\n", response.Message)
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for _, data := range response.Data {
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fmt.Printf("\n数据ID: %s\n", data.DataID)
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fmt.Printf("处理状态: %d - %s\n", data.Code, data.Message)
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for _, result := range data.Results {
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if result.Confidence != nil {
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fmt.Printf("置信度: %f\n", *result.Confidence)
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}
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if result.Description != nil {
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fmt.Printf("描述: %s\n", *result.Description)
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}
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if result.Label != nil {
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fmt.Printf("标签: %s\n", *result.Label)
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}
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if result.RiskLevel != nil {
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fmt.Printf("风险等级: %s\n", *result.RiskLevel)
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}
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fmt.Println("---")
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}
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}
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}
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