sanitize error reports

Author: t3chguy

src/CountlyAnalytics.ts

@@ -343,6 +343,18 @@ const getRoomStats = (roomId: string) => {
  }
 }
 
+// async wrapper for regex-powered String.prototype.replace
+const strReplaceAsync = async (str: string, regex: RegExp, fn: (...args: string[]) => Promise<string>) => {
+ const promises: Promise<string>[] = [];
+ // dry-run to calculate the replace values
+ str.replace(regex, (...args: string[]) => {
+ promises.push(fn(...args));
+ return "";
+ });
+ const values = await Promise.all(promises);
+ return str.replace(regex, () => values.shift());
+};
+
 export default class CountlyAnalytics {
  private baseUrl: URL = null;
  private appKey: string = null;
@@ -495,7 +507,7 @@ export default class CountlyAnalytics {
  return this.lastMsTs;
  }
 
- public recordError(err: Error | string, fatal = false) {
+ public async recordError(err: Error | string, fatal = false) {
  if (this.disabled || this.anonymous) return;
 
  let error = "";
@@ -523,6 +535,11 @@ export default class CountlyAnalytics {
  error = err + "";
  }
 
+ // sanitize the error from identifiers
+ error = await strReplaceAsync(error, /([!@+#]).+?:[\w:.]+/g, async (substring: string, glyph: string) => {
+ return glyph + await hashHex(substring.substring(1));
+ });
+
  const metrics = this.getMetrics();
  const ob: ICrash = {
  _resolution: metrics?._resolution,