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refactor(base64): mutualized base64 functions into global utilities

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Corentin Thomasset 2022-08-04 12:09:32 +02:00
parent ca7cb44389
commit 447bdf2148
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GPG key ID: 3103EB5E79496F9C
8 changed files with 138 additions and 12 deletions
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33
src/utils/base64.ts Normal file
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export { textToBase64, base64ToText, isValidBase64, removePotentialDataAndMimePrefix };
function textToBase64(str: string) {
return window.btoa(str);
}
function base64ToText(str: string) {
if (!isValidBase64(str)) {
throw new Error('Incorrect base64 string');
}
const cleanStr = removePotentialDataAndMimePrefix(str);
try {
return window.atob(cleanStr);
} catch (_) {
throw new Error('Incorrect base64 string');
}
}
function removePotentialDataAndMimePrefix(str: string) {
return str.replace(/^data:.*?;base64,/, '');
}
function isValidBase64(str: string) {
const cleanStr = removePotentialDataAndMimePrefix(str);
try {
return window.btoa(window.atob(cleanStr)) === cleanStr;
} catch (err) {
return false;
}
}