110 lines
2.7 KiB
Go
110 lines
2.7 KiB
Go
package material
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import (
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"encoding/json"
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"fmt"
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"github.com/silenceper/wechat/v2/util"
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)
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// MediaType 媒体文件类型
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type MediaType string
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const (
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// MediaTypeImage 媒体文件:图片
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MediaTypeImage MediaType = "image"
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// MediaTypeVoice 媒体文件:声音
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MediaTypeVoice MediaType = "voice"
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// MediaTypeVideo 媒体文件:视频
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MediaTypeVideo MediaType = "video"
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// MediaTypeThumb 媒体文件:缩略图
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MediaTypeThumb MediaType = "thumb"
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)
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const (
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mediaUploadURL = "https://api.weixin.qq.com/cgi-bin/media/upload"
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mediaUploadImageURL = "https://api.weixin.qq.com/cgi-bin/media/uploadimg"
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mediaGetURL = "https://api.weixin.qq.com/cgi-bin/media/get"
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)
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// Media 临时素材上传返回信息
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type Media struct {
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util.CommonError
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Type MediaType `json:"type"`
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MediaID string `json:"media_id"`
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ThumbMediaID string `json:"thumb_media_id"`
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CreatedAt int64 `json:"created_at"`
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}
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// MediaUpload 临时素材上传
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func (material *Material) MediaUpload(mediaType MediaType, filename string) (media Media, err error) {
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var accessToken string
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accessToken, err = material.GetAccessToken()
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if err != nil {
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return
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}
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uri := fmt.Sprintf("%s?access_token=%s&type=%s", mediaUploadURL, accessToken, mediaType)
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var response []byte
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response, err = util.PostFile("media", filename, uri)
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if err != nil {
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return
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}
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err = json.Unmarshal(response, &media)
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if err != nil {
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return
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}
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if media.ErrCode != 0 {
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err = fmt.Errorf("MediaUpload error : errcode=%v , errmsg=%v", media.ErrCode, media.ErrMsg)
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return
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}
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return
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}
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// GetMediaURL 返回临时素材的下载地址供用户自己处理
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// NOTICE: URL 不可公开，因为含access_token 需要立即另存文件
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func (material *Material) GetMediaURL(mediaID string) (mediaURL string, err error) {
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var accessToken string
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accessToken, err = material.GetAccessToken()
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if err != nil {
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return
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}
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mediaURL = fmt.Sprintf("%s?access_token=%s&media_id=%s", mediaGetURL, accessToken, mediaID)
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return
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}
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// resMediaImage 图片上传返回结果
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type resMediaImage struct {
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util.CommonError
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URL string `json:"url"`
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}
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// ImageUpload 图片上传
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func (material *Material) ImageUpload(filename string) (url string, err error) {
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var accessToken string
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accessToken, err = material.GetAccessToken()
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if err != nil {
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return
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}
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uri := fmt.Sprintf("%s?access_token=%s", mediaUploadImageURL, accessToken)
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var response []byte
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response, err = util.PostFile("media", filename, uri)
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if err != nil {
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return
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}
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var image resMediaImage
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err = json.Unmarshal(response, &image)
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if err != nil {
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return
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}
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if image.ErrCode != 0 {
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err = fmt.Errorf("UploadImage error : errcode=%v , errmsg=%v", image.ErrCode, image.ErrMsg)
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return
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}
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url = image.URL
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return
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}
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