github.com/wangyougui/gf/v2@v2.6.5/encoding/gbase64/gbase64.go (about)

     1  // Copyright GoFrame Author(https://goframe.org). All Rights Reserved.
     2  //
     3  // This Source Code Form is subject to the terms of the MIT License.
     4  // If a copy of the MIT was not distributed with this file,
     5  // You can obtain one at https://github.com/wangyougui/gf.
     6  
     7  // Package gbase64 provides useful API for BASE64 encoding/decoding algorithm.
     8  package gbase64
     9  
    10  import (
    11  	"encoding/base64"
    12  	"os"
    13  
    14  	"github.com/wangyougui/gf/v2/errors/gerror"
    15  )
    16  
    17  // Encode encodes bytes with BASE64 algorithm.
    18  func Encode(src []byte) []byte {
    19  	dst := make([]byte, base64.StdEncoding.EncodedLen(len(src)))
    20  	base64.StdEncoding.Encode(dst, src)
    21  	return dst
    22  }
    23  
    24  // EncodeString encodes string with BASE64 algorithm.
    25  func EncodeString(src string) string {
    26  	return EncodeToString([]byte(src))
    27  }
    28  
    29  // EncodeToString encodes bytes to string with BASE64 algorithm.
    30  func EncodeToString(src []byte) string {
    31  	return string(Encode(src))
    32  }
    33  
    34  // EncodeFile encodes file content of `path` using BASE64 algorithms.
    35  func EncodeFile(path string) ([]byte, error) {
    36  	content, err := os.ReadFile(path)
    37  	if err != nil {
    38  		err = gerror.Wrapf(err, `os.ReadFile failed for filename "%s"`, path)
    39  		return nil, err
    40  	}
    41  	return Encode(content), nil
    42  }
    43  
    44  // MustEncodeFile encodes file content of `path` using BASE64 algorithms.
    45  // It panics if any error occurs.
    46  func MustEncodeFile(path string) []byte {
    47  	result, err := EncodeFile(path)
    48  	if err != nil {
    49  		panic(err)
    50  	}
    51  	return result
    52  }
    53  
    54  // EncodeFileToString encodes file content of `path` to string using BASE64 algorithms.
    55  func EncodeFileToString(path string) (string, error) {
    56  	content, err := EncodeFile(path)
    57  	if err != nil {
    58  		return "", err
    59  	}
    60  	return string(content), nil
    61  }
    62  
    63  // MustEncodeFileToString encodes file content of `path` to string using BASE64 algorithms.
    64  // It panics if any error occurs.
    65  func MustEncodeFileToString(path string) string {
    66  	result, err := EncodeFileToString(path)
    67  	if err != nil {
    68  		panic(err)
    69  	}
    70  	return result
    71  }
    72  
    73  // Decode decodes bytes with BASE64 algorithm.
    74  func Decode(data []byte) ([]byte, error) {
    75  	var (
    76  		src    = make([]byte, base64.StdEncoding.DecodedLen(len(data)))
    77  		n, err = base64.StdEncoding.Decode(src, data)
    78  	)
    79  	if err != nil {
    80  		err = gerror.Wrap(err, `base64.StdEncoding.Decode failed`)
    81  	}
    82  	return src[:n], err
    83  }
    84  
    85  // MustDecode decodes bytes with BASE64 algorithm.
    86  // It panics if any error occurs.
    87  func MustDecode(data []byte) []byte {
    88  	result, err := Decode(data)
    89  	if err != nil {
    90  		panic(err)
    91  	}
    92  	return result
    93  }
    94  
    95  // DecodeString decodes string with BASE64 algorithm.
    96  func DecodeString(data string) ([]byte, error) {
    97  	return Decode([]byte(data))
    98  }
    99  
   100  // MustDecodeString decodes string with BASE64 algorithm.
   101  // It panics if any error occurs.
   102  func MustDecodeString(data string) []byte {
   103  	result, err := DecodeString(data)
   104  	if err != nil {
   105  		panic(err)
   106  	}
   107  	return result
   108  }
   109  
   110  // DecodeToString decodes string with BASE64 algorithm.
   111  func DecodeToString(data string) (string, error) {
   112  	b, err := DecodeString(data)
   113  	return string(b), err
   114  }
   115  
   116  // MustDecodeToString decodes string with BASE64 algorithm.
   117  // It panics if any error occurs.
   118  func MustDecodeToString(data string) string {
   119  	result, err := DecodeToString(data)
   120  	if err != nil {
   121  		panic(err)
   122  	}
   123  	return result
   124  }