126 lines
3.4 KiB
TypeScript
126 lines
3.4 KiB
TypeScript
// Copyright 2018-2021 Signal Messenger, LLC
|
|
// SPDX-License-Identifier: AGPL-3.0-only
|
|
|
|
/* eslint-env node */
|
|
|
|
import is from '@sindresorhus/is';
|
|
import { join as pathJoin } from 'path';
|
|
|
|
import { compose } from 'lodash/fp';
|
|
import { escapeRegExp } from 'lodash';
|
|
|
|
export const APP_ROOT_PATH = pathJoin(__dirname, '..', '..');
|
|
|
|
const PHONE_NUMBER_PATTERN = /\+\d{7,12}(\d{3})/g;
|
|
const UUID_PATTERN = /[0-9A-F]{8}-[0-9A-F]{4}-4[0-9A-F]{3}-[89AB][0-9A-F]{3}-[0-9A-F]{9}([0-9A-F]{3})/gi;
|
|
const GROUP_ID_PATTERN = /(group\()([^)]+)(\))/g;
|
|
const GROUP_V2_ID_PATTERN = /(groupv2\()([^=)]+)(=?=?\))/g;
|
|
const REDACTION_PLACEHOLDER = '[REDACTED]';
|
|
|
|
export type RedactFunction = (value: string) => string;
|
|
|
|
export const _redactPath = (filePath: string): RedactFunction => {
|
|
if (!is.string(filePath)) {
|
|
throw new TypeError("'filePath' must be a string");
|
|
}
|
|
|
|
const filePathPattern = _pathToRegExp(filePath);
|
|
|
|
return (text: string): string => {
|
|
if (!is.string(text)) {
|
|
throw new TypeError("'text' must be a string");
|
|
}
|
|
|
|
if (!is.regExp(filePathPattern)) {
|
|
return text;
|
|
}
|
|
|
|
return text.replace(filePathPattern, REDACTION_PLACEHOLDER);
|
|
};
|
|
};
|
|
|
|
export const _pathToRegExp = (filePath: string): RegExp | undefined => {
|
|
try {
|
|
const pathWithNormalizedSlashes = filePath.replace(/\//g, '\\');
|
|
const pathWithEscapedSlashes = filePath.replace(/\\/g, '\\\\');
|
|
const urlEncodedPath = encodeURI(filePath);
|
|
// Safe `String::replaceAll`:
|
|
// https://github.com/lodash/lodash/issues/1084#issuecomment-86698786
|
|
const patternString = [
|
|
filePath,
|
|
pathWithNormalizedSlashes,
|
|
pathWithEscapedSlashes,
|
|
urlEncodedPath,
|
|
]
|
|
.map(escapeRegExp)
|
|
.join('|');
|
|
return new RegExp(patternString, 'g');
|
|
} catch (error) {
|
|
return undefined;
|
|
}
|
|
};
|
|
|
|
// Public API
|
|
export const redactPhoneNumbers = (text: string): string => {
|
|
if (!is.string(text)) {
|
|
throw new TypeError("'text' must be a string");
|
|
}
|
|
|
|
return text.replace(PHONE_NUMBER_PATTERN, `+${REDACTION_PLACEHOLDER}$1`);
|
|
};
|
|
|
|
export const redactUuids = (text: string): string => {
|
|
if (!is.string(text)) {
|
|
throw new TypeError("'text' must be a string");
|
|
}
|
|
|
|
return text.replace(UUID_PATTERN, `${REDACTION_PLACEHOLDER}$1`);
|
|
};
|
|
|
|
export const redactGroupIds = (text: string): string => {
|
|
if (!is.string(text)) {
|
|
throw new TypeError("'text' must be a string");
|
|
}
|
|
|
|
return text
|
|
.replace(
|
|
GROUP_ID_PATTERN,
|
|
(_, before, id, after) =>
|
|
`${before}${REDACTION_PLACEHOLDER}${removeNewlines(id).slice(
|
|
-3
|
|
)}${after}`
|
|
)
|
|
.replace(
|
|
GROUP_V2_ID_PATTERN,
|
|
(_, before, id, after) =>
|
|
`${before}${REDACTION_PLACEHOLDER}${removeNewlines(id).slice(
|
|
-3
|
|
)}${after}`
|
|
);
|
|
};
|
|
|
|
const createRedactSensitivePaths = (
|
|
paths: ReadonlyArray<string>
|
|
): RedactFunction => {
|
|
return compose(paths.map(filePath => _redactPath(filePath)));
|
|
};
|
|
|
|
const sensitivePaths: Array<string> = [];
|
|
|
|
let redactSensitivePaths: RedactFunction = (text: string) => text;
|
|
|
|
export const addSensitivePath = (filePath: string): void => {
|
|
sensitivePaths.push(filePath);
|
|
redactSensitivePaths = createRedactSensitivePaths(sensitivePaths);
|
|
};
|
|
|
|
addSensitivePath(APP_ROOT_PATH);
|
|
|
|
export const redactAll: RedactFunction = compose(
|
|
(text: string) => redactSensitivePaths(text),
|
|
redactGroupIds,
|
|
redactPhoneNumbers,
|
|
redactUuids
|
|
);
|
|
|
|
const removeNewlines: RedactFunction = text => text.replace(/\r?\n|\r/g, '');
|