@speckle/shared/dist/esm/images/base64.js

Shared code between various Speckle JS packages

export const isValidBase64Image = (data) => {
    if (!data.startsWith('data:image/'))
        return false;
    const parts = data.split(',');
    if (parts.length !== 2)
        return false;
    // Remove all whitespace characters from base64 string
    const base64String = parts[1].replace(/\s+/g, '');
    // Validate that the cleaned string only has valid base64 characters
    const base64Regex = /^[A-Za-z0-9+/]+={0,2}$/;
    if (!base64Regex.test(base64String))
        return false;
    try {
        const buffer = Buffer.from(base64String, 'base64');
        return buffer.length > 0;
    }
    catch {
        return false;
    }
};
//# sourceMappingURL=base64.js.map