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develop
pkg/media/base64.go
50 строк
2 KB
Michael Mayer
API: Disable gzip compression for /api/v1/dl endpoint #127 #1090
11 апр 2025, 15:13
11 апр 2025, 15:13
35bfe06
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package media import ( "encoding/base64" "io" ) // EncodeBase64String returns the base64 encoding of bin. func EncodeBase64String(bin []byte) string { return base64.StdEncoding.EncodeToString(bin) } // EncodedLenBase64 returns the length in bytes of the base64 encoding of an input buffer of length n. func EncodedLenBase64(decodedBytes int) int { return base64.StdEncoding.EncodedLen(decodedBytes) } // DecodeBase64String returns the bytes represented by the base64 string s. // If the input is malformed, it returns the partially decoded data and // [CorruptInputError]. Newline characters (\r and \n) are ignored. func DecodeBase64String(s string) ([]byte, error) { return base64.StdEncoding.DecodeString(s) } // ReadBase64 returns a new reader that decodes base64 and returns binary data. func ReadBase64(stream io.Reader) io.Reader { return base64.NewDecoder(base64.StdEncoding, stream) } // EncodeBase64Bytes encodes src, writing EncodedLenBase64 bytes to dst. // // The encoding pads the output to a multiple of 4 bytes, // so Encode is not appropriate for use on individual blocks // of a large data stream. func EncodeBase64Bytes(dst, src []byte) { base64.StdEncoding.Encode(dst, src) } // DecodedLenBase64 returns the maximum length in bytes of the decoded data // corresponding to n bytes of base64-encoded data. func DecodedLenBase64(encodedBytes int) int { return base64.StdEncoding.DecodedLen(encodedBytes) } // DecodeBase64Bytes decodes src, writing at most DecodedLenBase64 bytes to dst. // If src contains invalid base64 data, it returns the number of bytes successfully // written. New line characters (\r and \n) are ignored. func DecodeBase64Bytes(dst, src []byte) (n int, err error) { return base64.StdEncoding.Decode(dst, src) }