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fix: base64 encoded drawio image decoded to Latin-1 instead of UTF-8 (#369)

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servostar
2024-10-10 16:39:04 +02:00
committed by GitHub
parent 7ec6a36515
commit e333eee08b
1 changed files with 11 additions and 1 deletions
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12
apps/client/src/lib/utils.ts
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@ -53,11 +53,21 @@ export async function svgStringToFile(
return new File([blob], fileName, { type: "image/svg+xml" }); return new File([blob], fileName, { type: "image/svg+xml" });
} }
// Convert a string holding Base64 encoded UTF-8 data into a proper UTF-8 encoded string
// as a replacement for `atob`.
// based on: https://developer.mozilla.org/en-US/docs/Glossary/Base64
function decodeBase64(base64: string): string {
// convert string to bytes
const bytes = Uint8Array.from(atob(base64), (m) => m.codePointAt(0));
// properly decode bytes to UTF-8 encoded string
return new TextDecoder().decode(bytes);
}
export function decodeBase64ToSvgString(base64Data: string): string { export function decodeBase64ToSvgString(base64Data: string): string {
const base64Prefix = 'data:image/svg+xml;base64,'; const base64Prefix = 'data:image/svg+xml;base64,';
if (base64Data.startsWith(base64Prefix)) { if (base64Data.startsWith(base64Prefix)) {
base64Data = base64Data.replace(base64Prefix, ''); base64Data = base64Data.replace(base64Prefix, '');
} }
return atob(base64Data); return decodeBase64(base64Data);
} }