style(代码风格): 整理声明顺序与字体模块

ofdgo_sign_ses.go

@@ -45,37 +45,6 @@ type ParsedSignatureSeal struct {
 	Height float64
 }
 
-// ParseSignatureSeal 解析独立SES印章供展示使用，不验证授权、有效期或制章者信任
-// 入参: data DER编码的电子印章
-// 返回: *ParsedSignatureSeal 印章信息及独立图像副本, error 解析错误
-func ParseSignatureSeal(data []byte) (*ParsedSignatureSeal, error) {
-	var raw asn1.RawValue
-	rest, err := asn1.Unmarshal(data, &raw)
-	if err != nil || len(rest) != 0 || raw.Tag != asn1.TagSequence || raw.Class != asn1.ClassUniversal {
-		return nil, fmt.Errorf("invalid SES seal DER")
-	}
-	seal, err := parseSESSeal(raw)
-	if err != nil {
-		return nil, err
-	}
-	items, _ := asn1Children(raw.Bytes)
-	info, _ := asn1Children(items[0].Bytes)
-	picture, _ := asn1Children(info[3].Bytes)
-	width, err := asn1Integer(picture[2])
-	if err != nil || width <= 0 {
-		return nil, fmt.Errorf("invalid seal picture width")
-	}
-	height, err := asn1Integer(picture[3])
-	if err != nil || height <= 0 {
-		return nil, fmt.Errorf("invalid seal picture height")
-	}
-	format, image := probeSealMedia(seal.PicData)
-	if len(image) == 0 || format != seal.PicType {
-		return nil, fmt.Errorf("invalid seal picture")
-	}
-	return &ParsedSignatureSeal{Info: seal.Info, Type: format, Data: append([]byte(nil), image...), Width: float64(width), Height: float64(height)}, nil
-}
-
 // sesSignature SES签章值
 type sesSignature struct {
 	Timestamp []byte
@@ -137,6 +106,37 @@ type sesVerifyResult struct {
 	SignatureTime   time.Time
 }
 
+// ParseSignatureSeal 解析独立SES印章供展示使用，不验证授权、有效期或制章者信任
+// 入参: data DER编码的电子印章
+// 返回: *ParsedSignatureSeal 印章信息及独立图像副本, error 解析错误
+func ParseSignatureSeal(data []byte) (*ParsedSignatureSeal, error) {
+	var raw asn1.RawValue
+	rest, err := asn1.Unmarshal(data, &raw)
+	if err != nil || len(rest) != 0 || raw.Tag != asn1.TagSequence || raw.Class != asn1.ClassUniversal {
+		return nil, fmt.Errorf("invalid SES seal DER")
+	}
+	seal, err := parseSESSeal(raw)
+	if err != nil {
+		return nil, err
+	}
+	items, _ := asn1Children(raw.Bytes)
+	info, _ := asn1Children(items[0].Bytes)
+	picture, _ := asn1Children(info[3].Bytes)
+	width, err := asn1Integer(picture[2])
+	if err != nil || width <= 0 {
+		return nil, fmt.Errorf("invalid seal picture width")
+	}
+	height, err := asn1Integer(picture[3])
+	if err != nil || height <= 0 {
+		return nil, fmt.Errorf("invalid seal picture height")
+	}
+	format, image := probeSealMedia(seal.PicData)
+	if len(image) == 0 || format != seal.PicType {
+		return nil, fmt.Errorf("invalid seal picture")
+	}
+	return &ParsedSignatureSeal{Info: seal.Info, Type: format, Data: append([]byte(nil), image...), Width: float64(width), Height: float64(height)}, nil
+}
+
 // parseSESSignature 解析SES签章值
 // 入参: data 签章值数据
 // 返回: *sesSignature SES签章值, error 错误信息