1 files changed, 127 insertions, 0 deletions
diff --git a/packages/taler-util/src/http-impl.qtart.ts b/packages/taler-util/src/http-impl.qtart.ts
new file mode 100644
index 000000000..954b41802
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+++ b/packages/taler-util/src/http-impl.qtart.ts
@@ -0,0 +1,127 @@
+/*
+ This file is part of GNU Taler
+ (C) 2019 Taler Systems S.A.
+
+ 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.
+
+ GNU 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/>
+
+ SPDX-License-Identifier: AGPL3.0-or-later
+*/
+
+/**
+ * Imports.
+ */
+import { Logger } from "@gnu-taler/taler-util";
+import { TalerError } from "./errors.js";
+import { encodeBody, HttpLibArgs } from "./http-common.js";
+import {
+  Headers,
+  HttpRequestLibrary,
+  HttpRequestOptions,
+  HttpResponse,
+} from "./http.js";
+import { RequestThrottler, TalerErrorCode, URL } from "./index.js";
+import { qjsOs } from "./qtart.js";
+
+const logger = new Logger("http-impl.qtart.ts");
+
+const textDecoder = new TextDecoder();
+
+/**
+ * Implementation of the HTTP request library interface for node.
+ */
+export class HttpLibImpl implements HttpRequestLibrary {
+  private throttle = new RequestThrottler();
+  private throttlingEnabled = true;
+
+  constructor(args?: HttpLibArgs) {
+    this.throttlingEnabled = args?.enableThrottling ?? false;
+  }
+
+  /**
+   * Set whether requests should be throttled.
+   */
+  setThrottling(enabled: boolean): void {
+    this.throttlingEnabled = enabled;
+  }
+
+  async fetch(url: string, opt?: HttpRequestOptions): Promise<HttpResponse> {
+    const method = opt?.method ?? "GET";
+
+    logger.trace(`Requesting ${method} ${url}`);
+
+    const parsedUrl = new URL(url);
+    if (this.throttlingEnabled && this.throttle.applyThrottle(url)) {
+      throw TalerError.fromDetail(
+        TalerErrorCode.WALLET_HTTP_REQUEST_THROTTLED,
+        {
+          requestMethod: method,
+          requestUrl: url,
+          throttleStats: this.throttle.getThrottleStats(url),
+        },
+        `request to origin ${parsedUrl.origin} was throttled`,
+      );
+    }
+
+    let data: ArrayBuffer | undefined = undefined;
+    let headers: string[] = [];
+    if (opt?.headers) {
+      for (let headerName of Object.keys(opt.headers)) {
+        headers.push(`${headerName}: ${opt.headers[headerName]}`);
+      }
+    }
+    if (method.toUpperCase() === "POST") {
+      data = encodeBody(opt?.body);
+    }
+    const res = await qjsOs.fetchHttp(url, {
+      method,
+      data,
+      headers,
+    });
+    return {
+      requestMethod: method,
+      // FIXME: We don't return headers!
+      headers: new Headers(),
+      async bytes() {
+        return res.data;
+      },
+      json() {
+        const text = textDecoder.decode(res.data);
+        return JSON.parse(text);
+      },
+      async text() {
+        const text = textDecoder.decode(res.data);
+        return text;
+      },
+      requestUrl: url,
+      status: res.status,
+    };
+  }
+
+  async get(url: string, opt?: HttpRequestOptions): Promise<HttpResponse> {
+    return this.fetch(url, {
+      method: "GET",
+      ...opt,
+    });
+  }
+
+  async postJson(
+    url: string,
+    body: any,
+    opt?: HttpRequestOptions,
+  ): Promise<HttpResponse> {
+    return this.fetch(url, {
+      method: "POST",
+      body,
+      ...opt,
+    });
+  }
+}