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chore: Valid template file name.

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This commit is contained in:
Ruben Verborgh 2021-07-12 17:34:07 +01:00
parent 649f7a9a78
commit 1ed733a2a7
1 changed files with 4 additions and 2 deletions
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6
src/storage/conversion/ErrorToTemplateConverter.ts
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@ -1,3 +1,4 @@
import assert from 'assert';
import { promises as fsPromises } from 'fs';
import arrayifyStream from 'arrayify-stream';
import { BasicRepresentation } from '../../ldp/representation/BasicRepresentation';
@ -57,10 +58,11 @@ export class ErrorToTemplateConverter extends TypedRepresentationConverter {
private async getErrorCodeMessage(error: Error): Promise<string | undefined> {
if (HttpError.isInstance(error) && error.errorCode) {
const filePath = joinFilePath(this.descriptions, `${error.errorCode}${this.extension}`);
let template: string;
try {
template = await fsPromises.readFile(filePath, 'utf8');
const fileName = `${error.errorCode}${this.extension}`;
assert(/^[\w.-]+$/u.test(fileName), 'Invalid error template name');
template = await fsPromises.readFile(joinFilePath(this.descriptions, fileName), 'utf8');
} catch {
// In case no template is found we still want to convert
return;