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package serializer
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import (
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"encoding/base64"
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"encoding/gob"
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"encoding/json"
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)
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// UploadPolicy slave模式下传递的上传策略
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type UploadPolicy struct {
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SavePath string `json:"save_path"`
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FileName string `json:"file_name"`
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AutoRename bool `json:"auto_rename"`
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MaxSize uint64 `json:"max_size"`
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AllowedExtension []string `json:"allowed_extension"`
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CallbackURL string `json:"callback_url"`
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}
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// UploadCredential 返回给客户端的上传凭证
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type UploadCredential struct {
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Token string `json:"token"`
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Policy string `json:"policy"`
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Path string `json:"path"` // 存储路径
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AccessKey string `json:"ak"`
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KeyTime string `json:"key_time,omitempty"` // COS用有效期
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Callback string `json:"callback,omitempty"` // 回调地址
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Key string `json:"key,omitempty"` // 文件标识符，通常为回调key
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}
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// UploadSession 上传会话
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type UploadSession struct {
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Key string
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UID uint
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PolicyID uint
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VirtualPath string
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Name string
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Size uint64
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SavePath string
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}
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// UploadCallback 上传回调正文
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type UploadCallback struct {
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Name string `json:"name"`
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SourceName string `json:"source_name"`
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PicInfo string `json:"pic_info"`
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Size uint64 `json:"size"`
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}
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// GeneralUploadCallbackFailed 存储策略上传回调失败响应
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type GeneralUploadCallbackFailed struct {
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Error string `json:"error"`
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}
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func init() {
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gob.Register(UploadSession{})
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}
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// DecodeUploadPolicy 反序列化Header中携带的上传策略
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func DecodeUploadPolicy(raw string) (*UploadPolicy, error) {
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var res UploadPolicy
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rawJSON, err := base64.StdEncoding.DecodeString(raw)
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if err != nil {
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return nil, err
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}
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err = json.Unmarshal(rawJSON, &res)
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if err != nil {
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return nil, err
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}
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return &res, err
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}
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// EncodeUploadPolicy 序列化Header中携带的上传策略
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func (policy *UploadPolicy) EncodeUploadPolicy() (string, error) {
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jsonRes, err := json.Marshal(policy)
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if err != nil {
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return "", err
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}
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res := base64.StdEncoding.EncodeToString(jsonRes)
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return res, nil
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}
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