Encode (Function)

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Encode (Function)

In french: Encode

Encodes a character string or a buffer. To decode the result, simply use Decode.

Caution: As the result of encoding is a character string, it may vary from one project configuration to another, depending on the setting of string management at runtime.

Example

// Encodage d'une image en Base 64
Res is string = Encode(fLoadBuffer("MonImage.jpg"), encodeBASE64)

// Encodage d'une URL
Info(Encode("https://www.google.fr/?", encodeURLFromAnsi) + ...
	Encode(Encode("https://www.google.fr/?é", encodeURLFromAnsi), encodeURLParameter))

// Le buffer contient des caractères au format Unicode en iOS
// ou au format ANSI dans d'autres configurations (paramétrées en ANSI)
MessageEnBuffer is Buffer = fChargeBuffer(fDataDir()/"monbuffer.bin")
MessageEnBuffer = Encode(MessageEnBuffer, encodeBASE64NoCR)
// Conversion permettant d'avoir un buffer en ANSI et BASE 64 dans toutes les plateformes:
MessageEnBuffer = StringToUTF8(Encode(MessageEnBuffer, encodeBASE64NoCR))

Syntax

<Result> = Encode(<Data> [, <Encoding format>])

<Result>: Character string

Data encoded according to the selected format.

<Data>: Character string or Buffer

Data to encode.

<Encoding format>: Optional Integer constant

Format for encoding data:
encodeBASE64
(Default value) BASE 64 format (complies with the RFC 4648 standard). Encoded text contains only printable characters and CRs (Carriage Returns).
Carriage returns (CR) are removed.
encodeBASE64NoCR BASE 64 format (complies with RFC 4648 standard) without RCs (Carriage Returns). The encoded text contains printable characters only.
This constant is not available.
encodeBASE64URL BASE 64 URL format (complies with the RFC 4648 standard). The encoded text contains printable characters only.
This constant is not available.
encodeBASE85 BASE 85 format. The encoded text contains printable characters only.
Unsupported format.
This constant is not available.
encodePCS ASCII format. The encoded text contains printable characters only.
Unsupported format.
encodeURLFromAnsi URL format. The encoded text only contains characters allowed in a URL. The text to encode is an ANSI string.
This constant is not available.
encodeURLFromUnicode URL format. The encoded text only contains characters allowed in a URL. The text to encode is a Unicode string.
This constant is not available.
encodeURLFromUTF8 URL format. The encoded text only contains characters allowed in a URL. The text to encode is a UTF-8 string.
This constant is not available.
encodeURLParameter This constant is used when it is necessary to pass a given URL (URL A) as a parameter to another URL (URL B). The reserved characters of URL A (//,?...) are encoded.
URL A (to be encoded) must be a valid URL. If it has parameters of its own, they must have been encoded with one of the following constants: encodeURLDfromAnsi, encodeURLDfromUnicode or encodeURLDfromUTF8.
This constant is not available.
encodeUUEncode UUEncode format. The encoded text contains printable characters only.
Unsupported format.

Business / UI classification: Business Logic

Component: wd300std.dll

See also

Minimum version required

Version 22

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Comments

Exemplo com Fonte

https://repository.windev.com/resource.awp?file_id=281474976711928;exemplo-cryptografia-descryptografia

Boller

15 Mar. 2024

OBS

É muito importante fazer o encode e o decode base 64 quando usar em arquivos de texto ou arquivos ini, pois existe varios formatos de arquivos sendo eles: ansi, unicode, utf-8. E uma vez encodado e decodando a criptofrafia e descriptografia vai funcionar perfeitamente pois os caracteres originais estaram cifrados, se nao fazer o encode e decode os caracteres armazenados nao vao bater e a senha usada sera inutil e nao dara certo o procedimento.

Il est très important d'encoder et de décoder la base 64 lors de l'utilisation de fichiers texte ou de fichiers ini, car il existe plusieurs formats de fichiers : ansi, unicode, utf-8. Et une fois encodés et décodés, le cryptage et le décryptage fonctionneront parfaitement car les caractères originaux seront cryptés, si vous n'encodez pas et ne décodez pas les caractères stockés ne correspondront pas et le mot de passe utilisé sera inutile et la procédure ne fonctionnera pas.

Boller

15 Mar. 2024

Exemplo

E no Windev Mobile
//Criptografia
B_senha is Buffer = HashString(HA_HMAC_MD5_128, "bob-esponja")
B_resultado_Criptografado is Buffer = CryptStandard(buf_conteudo_sig, B_senha, cryptAES128)
B_resultado_Criptografado=encode(B_resultado_Criptografado, encodeBASE64)

info(B_resultado_Criptografado)

//Descriptografia
B_senha is Buffer = HashString(HA_HMAC_MD5_128, "bob-esponja")
B_resultado_Descriptografado is Buffer = decode(B_resultado_Criptografado, encodeBASE64)
B_resultado_Descriptografado = UnCryptStandard(B_resultado_Descriptografado, B_senha, cryptAES128)

info(B_resultado_Descriptografado )

Boller

15 Mar. 2024

Exemplo

//Exemplo para Criptografar
// se usar a criptografia em um arquivo texto ou ini deve fazer encode 64 bits.

sMessage is Buffer = "Message to encrypt"
bufKey is Buffer = HashString(HA_CKSUM_64, "password")
bufEncrypt is Buffer = CryptStandard(sMessage, bufKey, cryptDES)
bufEncrypt = encode(bufEncrypt, encodeBASE64)
Info(bufEncrypt)

// Exemplo para Decriptografar
bufKey is Buffer = HashString(HA_CKSUM_64, "password")
sResult is Buffer = decode(sResult, encodeBASE64)
sResult = UncryptStandard(bufEncrypt, bufKey, cryptDES)
Info(sResult)

Boller

15 Mar. 2024

Link exemplos

https://forum.pcsoft.fr/fr-FR/pcsoft.br.windev/4235-comandos-criptografia-descriptografia-para-usar-windev-webdev-windev/read.awp

Boller

15 Mar. 2024

IMAGEN /STRING

//VOU MOSTRAR HOJE, COMO TRANSFORMAR
//UMA IMAGEN EM STRING E TRANSFORMAR
//UMA STRING EM UMA IMAGEM

IMG_IMAGEN_1 = "c:\ICONES\IC_OK_N.PNG" // VALIDADO
EDT_IMAGEN_TEXTO=Encode(fChargeBuffer(IMG_IMAGEN_1),encodeBASE64)
//--
IMG_IMAGEM_VOLTA = Decode(EDT_IMAGEN_TEXTO,encodeBASE64)

//BLOG COM VIDE E EXEMPLO

http://windevdesenvolvimento.blogspot.com/2017/08/aula-1237-windev-imagen-006-encodedecode.html

https://www.youtube.com/watch?v=KLr4-1wg_WQ

De matos

11 Aug. 2017

Last update: 09/24/2024

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