110 lines
2.2 KiB
Go
110 lines
2.2 KiB
Go
package stream
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import (
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"encoding/hex"
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"encoding/json"
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"github.com/lbryio/lbry.go/v2/extras/errors"
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)
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// inspired by https://blog.gopheracademy.com/advent-2016/advanced-encoding-decoding/
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type SDBlobAlias SDBlob
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type JSONSDBlob struct {
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StreamName string `json:"stream_name"`
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SDBlobAlias
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Key string `json:"key"`
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SuggestedFileName string `json:"suggested_file_name"`
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StreamHash string `json:"stream_hash"`
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}
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func (s SDBlob) MarshalJSON() ([]byte, error) {
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var tmp JSONSDBlob
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tmp.StreamName = hex.EncodeToString([]byte(s.StreamName))
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tmp.StreamHash = hex.EncodeToString(s.StreamHash)
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tmp.SuggestedFileName = hex.EncodeToString([]byte(s.SuggestedFileName))
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tmp.Key = hex.EncodeToString(s.Key)
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tmp.SDBlobAlias = SDBlobAlias(s)
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return json.Marshal(tmp)
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}
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func (s *SDBlob) UnmarshalJSON(b []byte) error {
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var tmp JSONSDBlob
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err := json.Unmarshal(b, &tmp)
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if err != nil {
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return errors.Err(err)
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}
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*s = SDBlob(tmp.SDBlobAlias)
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str, err := hex.DecodeString(tmp.StreamName)
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if err != nil {
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return errors.Err(err)
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}
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s.StreamName = string(str)
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str, err = hex.DecodeString(tmp.SuggestedFileName)
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if err != nil {
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return errors.Err(err)
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}
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s.SuggestedFileName = string(str)
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s.StreamHash, err = hex.DecodeString(tmp.StreamHash)
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if err != nil {
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return errors.Err(err)
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}
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s.Key, err = hex.DecodeString(tmp.Key)
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if err != nil {
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return errors.Err(err)
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}
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return nil
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}
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type BlobInfoAlias BlobInfo
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type JSONBlobInfo struct {
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BlobInfoAlias
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BlobHash string `json:"blob_hash,omitempty"`
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IV string `json:"iv"`
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}
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func (bi BlobInfo) MarshalJSON() ([]byte, error) {
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var tmp JSONBlobInfo
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tmp.IV = hex.EncodeToString(bi.IV)
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if len(bi.BlobHash) > 0 {
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tmp.BlobHash = hex.EncodeToString(bi.BlobHash)
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}
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tmp.BlobInfoAlias = BlobInfoAlias(bi)
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return json.Marshal(tmp)
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}
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func (bi *BlobInfo) UnmarshalJSON(b []byte) error {
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var tmp JSONBlobInfo
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err := json.Unmarshal(b, &tmp)
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if err != nil {
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return errors.Err(err)
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}
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*bi = BlobInfo(tmp.BlobInfoAlias)
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bi.BlobHash, err = hex.DecodeString(tmp.BlobHash)
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if err != nil {
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return errors.Err(err)
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}
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bi.IV, err = hex.DecodeString(tmp.IV)
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if err != nil {
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return errors.Err(err)
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}
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return nil
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}
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