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Update S3 configuration checks and regex for base64 image validation

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- Made S3_REGION optional in the configuration check.
- Updated HAS_S3 condition to include S3_REGION and S3_ENDPOINT.
- Enhanced regex for base64 image validation to allow alphanumeric characters.
This commit is contained in:
Zai Shi 2025-07-30 14:35:27 -07:00
parent 3a2def77d0
commit c856d00d1c
2 changed files with 4 additions and 4 deletions
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2
apps/backend/src/lib/images.tsx
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@ -17,7 +17,7 @@ export async function parseBase64Image(input: string, options: {
allowTypes: ['image/jpeg', 'image/png', 'image/webp'],
}) {
// Remove data URL prefix if present (e.g., "data:image/jpeg;base64,")
const base64Data = input.replace(/^data:image\/[a-z]+;base64,/, '');
const base64Data = input.replace(/^data:image\/[a-zA-Z0-9]+;base64,/, '');
// check the size before and after the base64 conversion
if (base64Data.length > options.maxBytes!) {

6
apps/backend/src/s3.tsx
View File

@ -3,13 +3,13 @@ import { getEnvVariable } from "@stackframe/stack-shared/dist/utils/env";
import { StackAssertionError, StatusError } from "@stackframe/stack-shared/dist/utils/errors";
import { parseBase64Image } from "./lib/images";
const S3_REGION = getEnvVariable("STACK_S3_REGION", "us-east-1");
const S3_REGION = getEnvVariable("STACK_S3_REGION", "");
const S3_ENDPOINT = getEnvVariable("STACK_S3_ENDPOINT", "");
const S3_BUCKET = getEnvVariable("STACK_S3_BUCKET", "");
const S3_ACCESS_KEY_ID = getEnvVariable("STACK_S3_ACCESS_KEY_ID", "");
const S3_SECRET_ACCESS_KEY = getEnvVariable("STACK_S3_SECRET_ACCESS_KEY", "");
const HAS_S3 = !!S3_BUCKET && !!S3_ACCESS_KEY_ID && !!S3_SECRET_ACCESS_KEY;
const HAS_S3 = !!S3_REGION && !!S3_ENDPOINT && !!S3_BUCKET && !!S3_ACCESS_KEY_ID && !!S3_SECRET_ACCESS_KEY;
if (!HAS_S3) {
console.warn("S3 bucket is not configured. File upload features will not be available.");
@ -69,7 +69,7 @@ async function uploadBase64Image({
export function checkImageString(input: string) {
return {
isBase64Image: /^data:image\/[a-z]+;base64,/.test(input),
isBase64Image: /^data:image\/[a-zA-Z0-9]+;base64,/.test(input),
isUrl: /^https?:\/\//.test(input),
};
}