[pbs-devel] [PATCH widget-toolkit v4 1/7] utils: add base64 conversion helper
Gabriel Goller
g.goller at proxmox.com
Fri Sep 13 15:10:27 CEST 2024
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>
---
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("");
+ return btoa(escapedString);
+ },
+
+ // Converts a base64 string into a utf8 string.
+ // Decodes escaped unicode characters correctly.
+ base64ToUtf8: function(b64_string) {
+ let string = atob(b64_string);
+ let bytes = Uint8Array.from(string, (m) => m.codePointAt(0));
+ return new TextDecoder().decode(bytes);
+ },
+
stringToRGB: function(string) {
let hash = 0;
if (!string) {
--
2.39.2
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