1 files changed, 0 insertions, 128 deletions
diff --git a/src/util/RequestThrottler.ts b/src/util/RequestThrottler.ts
deleted file mode 100644
index d979fbfcf..000000000
--- a/src/util/RequestThrottler.ts
+++ /dev/null
@@ -1,128 +0,0 @@
-/*
- This file is part of GNU Taler
- (C) 2019 GNUnet e.V.
-
- GNU Taler is free software; you can redistribute it and/or modify it under the
- terms of the GNU General Public License as published by the Free Software
- Foundation; either version 3, or (at your option) any later version.
-
- TALER is distributed in the hope that it will be useful, but WITHOUT ANY
- WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
- A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License along with
- GNU Taler; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
- */
-
-/**
- * Implementation of token bucket throttling.
- */
-
-/**
- * Imports.
- */
-import { getTimestampNow, timestampDifference } from "../util/time";
-
-/**
- * Maximum request per second, per origin.
- */
-const MAX_PER_SECOND = 50;
-
-/**
- * Maximum request per minute, per origin.
- */
-const MAX_PER_MINUTE = 100;
-
-/**
- * Maximum request per hour, per origin.
- */
-const MAX_PER_HOUR = 1000;
-
-/**
- * Throttling state for one origin.
- */
-class OriginState {
-  private tokensSecond: number = MAX_PER_SECOND;
-  private tokensMinute: number = MAX_PER_MINUTE;
-  private tokensHour: number = MAX_PER_HOUR;
-  private lastUpdate = getTimestampNow();
-
-  private refill(): void {
-    const now = getTimestampNow();
-    const d = timestampDifference(now, this.lastUpdate);
-    if (d.d_ms === "forever") {
-      throw Error("assertion failed");
-    }
-    const d_s = d.d_ms / 1000;
-    this.tokensSecond = Math.min(
-      MAX_PER_SECOND,
-      this.tokensSecond + d_s / 1000,
-    );
-    this.tokensMinute = Math.min(
-      MAX_PER_MINUTE,
-      this.tokensMinute + (d_s / 1000) * 60,
-    );
-    this.tokensHour = Math.min(
-      MAX_PER_HOUR,
-      this.tokensHour + (d_s / 1000) * 60 * 60,
-    );
-    this.lastUpdate = now;
-  }
-
-  /**
-   * Return true if the request for this origin should be throttled.
-   * Otherwise, take a token out of the respective buckets.
-   */
-  applyThrottle(): boolean {
-    this.refill();
-    if (this.tokensSecond < 1) {
-      console.log("request throttled (per second limit exceeded)");
-      return true;
-    }
-    if (this.tokensMinute < 1) {
-      console.log("request throttled (per minute limit exceeded)");
-      return true;
-    }
-    if (this.tokensHour < 1) {
-      console.log("request throttled (per hour limit exceeded)");
-      return true;
-    }
-    this.tokensSecond--;
-    this.tokensMinute--;
-    this.tokensHour--;
-    return false;
-  }
-}
-
-/**
- * Request throttler, used as a "last layer of defense" when some
- * other part of the re-try logic is broken and we're sending too
- * many requests to the same exchange/bank/merchant.
- */
-export class RequestThrottler {
-  private perOriginInfo: { [origin: string]: OriginState } = {};
-
-  /**
-   * Get the throttling state for an origin, or
-   * initialize if no state is associated with the
-   * origin yet.
-   */
-  private getState(origin: string): OriginState {
-    const s = this.perOriginInfo[origin];
-    if (s) {
-      return s;
-    }
-    const ns = (this.perOriginInfo[origin] = new OriginState());
-    return ns;
-  }
-
-  /**
-   * Apply throttling to a request.
-   *
-   * @returns whether the request should be throttled.
-   */
-  applyThrottle(requestUrl: string): boolean {
-    const origin = new URL(requestUrl).origin;
-    return this.getState(origin).applyThrottle();
-  }
-}