oauth2,jssdk

material/media.go

@@ -0,0 +1,109 @@
+package material
+
+import (
+	"encoding/json"
+	"fmt"
+
+	"github.com/silenceper/wechat/util"
+)
+
+//MediaType 媒体文件类型
+type MediaType string
+
+const (
+	//MediaTypeImage 媒体文件:图片
+	MediaTypeImage MediaType = "image"
+	//MediaTypeVoice 媒体文件:声音
+	MediaTypeVoice = "voice"
+	//MediaTypeVideo 媒体文件:视频
+	MediaTypeVideo = "video"
+	//MediaTypeThumb 媒体文件:缩略图
+	MediaTypeThumb = "thumb"
+)
+
+const (
+	mediaUploadURL      = "https://api.weixin.qq.com/cgi-bin/media/upload"
+	mediaUploadImageURL = "https://api.weixin.qq.com/cgi-bin/media/uploadimg"
+	mediaGetURL         = "https://api.weixin.qq.com/cgi-bin/media/get"
+)
+
+//Media 临时素材上传返回信息
+type Media struct {
+	util.CommonError
+
+	Type      MediaType `json:"type"`
+	MediaID   string    `json:"media_id"`
+	CreatedAt int64     `json:"created_at"`
+}
+
+//MediaUpload 临时素材上传
+func (material *Material) MediaUpload(mediaType MediaType, filename string) (media Media, err error) {
+	var accessToken string
+	accessToken, err = material.GetAccessToken()
+	if err != nil {
+		return
+	}
+
+	uri := fmt.Sprintf("%s?access_token=%s&type=%s", mediaUploadURL, accessToken, mediaType)
+	var response []byte
+	response, err = util.PostFile("media", filename, uri)
+	if err != nil {
+		return
+	}
+	err = json.Unmarshal(response, &media)
+	if err != nil {
+		return
+	}
+	if media.ErrCode != 0 {
+		err = fmt.Errorf("MediaUpload error : errcode=%v , errmsg=%v", media.ErrCode, media.ErrMsg)
+		return
+	}
+	return
+}
+
+//GetMediaURL 返回临时素材的下载地址供用户自己处理
+//NOTICE: URL 不可公开，因为含access_token 需要立即另存文件
+func (material *Material) GetMediaURL(mediaID string) (mediaURL string, err error) {
+	var accessToken string
+	accessToken, err = material.GetAccessToken()
+	if err != nil {
+		return
+	}
+	mediaURL = fmt.Sprintf("%s?access_token=%s&media_id=%s", mediaGetURL, accessToken, mediaID)
+	return
+}
+
+//resMediaImage 图片上传返回结果
+type resMediaImage struct {
+	util.CommonError
+
+	URL string `json:"url"`
+}
+
+//ImageUpload 图片上传
+func (material *Material) ImageUpload(filename string) (url string, err error) {
+	var accessToken string
+	accessToken, err = material.GetAccessToken()
+	if err != nil {
+		return
+	}
+
+	uri := fmt.Sprintf("%s?access_token=%s", mediaUploadImageURL, accessToken)
+	var response []byte
+	response, err = util.PostFile("media", filename, uri)
+	if err != nil {
+		return
+	}
+	var image resMediaImage
+	err = json.Unmarshal(response, &image)
+	if err != nil {
+		return
+	}
+	if image.ErrCode != 0 {
+		err = fmt.Errorf("UploadImage error : errcode=%v , errmsg=%v", image.ErrCode, image.ErrMsg)
+		return
+	}
+	url = image.URL
+	return
+
+}