[pbs-devel] [PATCH widget-toolkit v4 1/7] utils: add base64 conversion helper

[Thomas Lamprecht]

On 13/09/2024 15:10, Gabriel Goller wrote:
> Add helper functions to convert from a utf8 string to a base64 string
> and vice-versa. Using the TextEncoder/TextDecoder we can support unicode
> such as emojis as well [0].
> 
> [0]: https://developer.mozilla.org/en-US/docs/Glossary/Base64#the_unicode_problem
> 
> Signed-off-by: Gabriel Goller <g.goller at proxmox.com>

Reviewed-by: Thomas Lamprecht <t.lamprecht at proxmox.com>

One small nit inline though.

> ---
>  src/Utils.js | 18 ++++++++++++++++++
>  1 file changed, 18 insertions(+)
> 
> diff --git a/src/Utils.js b/src/Utils.js
> index 7dd034a5e56f..3badb6aaf606 100644
> --- a/src/Utils.js
> +++ b/src/Utils.js
> @@ -1356,6 +1356,24 @@ utilities: {
>  	);
>      },
>  
> +    // Convert utf-8 string to base64.
> +    // This also escapes unicode characters such as emojis.
> +    utf8ToBase64: function(string) {
> +	let bytes = new TextEncoder().encode(string);
> +	const escapedString = Array.from(bytes, (byte) =>
> +	    String.fromCodePoint(byte),
> +	).join("");

FWIW this could be a bit shorter by using map (which typed arrays
also support [0]):

        const escapedString = bytes.map(b => String.fromCodePoint(b)).join('');

But for that we really need no new revision.

[0]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/TypedArray/map