Merge pull request #27 from CyJaySong/master

添加 v3 版的人脸对比

vision/face/v2/match.go

@@ -8,7 +8,7 @@ import (
 )
 
 const (
-	FACE_MATCH_URL = "https://aip.baidubce.com/rest/2.0/face/v2/match"
+	faceMatchUrl = "https://aip.baidubce.com/rest/2.0/face/v2/match"
 )
 
 func (fc FaceClient) Match(img1, img2 *vision.Image, options map[string]interface{}) (*FaceResponse, error) {
@@ -30,7 +30,7 @@ func (fc FaceClient) Match(img1, img2 *vision.Image, options map[string]interfac
 	header := req.Header{
 		"Content-Type": "application/x-www-form-urlencoded",
 	}
-	url := fmt.Sprintf("%s?access_token=%s", FACE_MATCH_URL, fc.AccessToken)
+	url := fmt.Sprintf("%s?access_token=%s", faceMatchUrl, fc.AccessToken)
 	resp, err := req.Post(url, header, req.Param(options))
 	if err != nil {
 		return nil, err

vision/face/v3/match.go

@@ -0,0 +1,44 @@
+package v3
+
+import (
+	"errors"
+	"fmt"
+	"github.com/imroc/req"
+)
+
+const (
+	faceMatchUrl = "https://aip.baidubce.com/rest/2.0/face/v3/match"
+)
+
+type FaceMatchResponse struct {
+	*req.Resp
+}
+
+type FaceMatchImage struct {
+	Image           string `json:"image"`
+	ImageType       string `json:"image_type"`
+	FaceType        string `json:"face_type,omitempty"`        // 默认LIVE
+	QualityControl  string `json:"quality_control,omitempty"`  // 默认 NONE
+	LivenessControl string `json:"liveness_control,omitempty"` // 默认 NONE
+	FaceSortType    string `json:"face_sort_type,omitempty"`   // 默认为0
+}
+
+func (fc FaceClient) FaceMatch(images [2]FaceMatchImage) (*FaceMatchResponse, error) {
+	for _, image := range images {
+		if image.ImageType != "BASE64" && image.ImageType != "URL" && image.ImageType != "FACE_TOKEN" {
+			return nil, errors.New("image_type is invalid")
+		}
+		if image.ImageType == "BASE64" && len(image.Image) > 2<<(20-1)*2 {
+			return nil, errors.New("image length is invalid")
+		}
+	}
+	if err := fc.Auth(); err != nil {
+		return nil, err
+	}
+	url := fmt.Sprintf("%s?access_token=%s", faceMatchUrl, fc.AccessToken)
+	resp, err := req.Post(url, req.BodyJSON(&images))
+	if err != nil {
+		return nil, err
+	}
+	return &FaceMatchResponse{resp}, nil
+}