mirror of
https://github.com/musix-org/musix-oss
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129 lines
5.4 KiB
JavaScript
129 lines
5.4 KiB
JavaScript
/*! firebase-admin v8.9.2 */
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"use strict";
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/*!
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* Copyright 2019 Google Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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Object.defineProperty(exports, "__esModule", { value: true });
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var api_request_1 = require("../utils/api-request");
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var error_1 = require("../utils/error");
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var PART_BOUNDARY = '__END_OF_PART__';
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var TEN_SECONDS_IN_MILLIS = 10000;
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/**
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* An HTTP client that can be used to make batch requests. This client is not tied to any service
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* (FCM or otherwise). Therefore it can be used to make batch requests to any service that allows
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* it. If this requirement ever arises we can move this implementation to the utils module
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* where it can be easily shared among other modules.
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*/
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var BatchRequestClient = /** @class */ (function () {
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/**
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* @param {HttpClient} httpClient The client that will be used to make HTTP calls.
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* @param {string} batchUrl The URL that accepts batch requests.
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* @param {object=} commonHeaders Optional headers that will be included in all requests.
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*
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* @constructor
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*/
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function BatchRequestClient(httpClient, batchUrl, commonHeaders) {
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this.httpClient = httpClient;
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this.batchUrl = batchUrl;
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this.commonHeaders = commonHeaders;
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}
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/**
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* Sends the given array of sub requests as a single batch, and parses the results into an array
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* of HttpResponse objects.
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*
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* @param {SubRequest[]} requests An array of sub requests to send.
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* @return {Promise<HttpResponse[]>} A promise that resolves when the send operation is complete.
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*/
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BatchRequestClient.prototype.send = function (requests) {
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var _this = this;
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requests = requests.map(function (req) {
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req.headers = Object.assign({}, _this.commonHeaders, req.headers);
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return req;
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});
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var requestHeaders = {
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'Content-Type': "multipart/mixed; boundary=" + PART_BOUNDARY,
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};
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var request = {
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method: 'POST',
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url: this.batchUrl,
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data: this.getMultipartPayload(requests),
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headers: Object.assign({}, this.commonHeaders, requestHeaders),
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timeout: TEN_SECONDS_IN_MILLIS,
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};
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return this.httpClient.send(request).then(function (response) {
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if (!response.multipart) {
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throw new error_1.FirebaseAppError(error_1.AppErrorCodes.INTERNAL_ERROR, 'Expected a multipart response.');
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}
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return response.multipart.map(function (buff) {
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return api_request_1.parseHttpResponse(buff, request);
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});
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});
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};
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BatchRequestClient.prototype.getMultipartPayload = function (requests) {
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var buffer = '';
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requests.forEach(function (request, idx) {
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buffer += createPart(request, PART_BOUNDARY, idx);
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});
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buffer += "--" + PART_BOUNDARY + "--\r\n";
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return Buffer.from(buffer, 'utf-8');
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};
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return BatchRequestClient;
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}());
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exports.BatchRequestClient = BatchRequestClient;
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/**
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* Creates a single part in a multipart HTTP request body. The part consists of several headers
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* followed by the serialized sub request as the body. As per the requirements of the FCM batch
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* API, sets the content-type header to application/http, and the content-transfer-encoding to
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* binary.
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*
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* @param {SubRequest} request A sub request that will be used to populate the part.
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* @param {string} boundary Multipart boundary string.
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* @param {number} idx An index number that is used to set the content-id header.
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* @return {string} The part as a string that can be included in the HTTP body.
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*/
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function createPart(request, boundary, idx) {
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var serializedRequest = serializeSubRequest(request);
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var part = "--" + boundary + "\r\n";
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part += "Content-Length: " + serializedRequest.length + "\r\n";
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part += 'Content-Type: application/http\r\n';
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part += "content-id: " + (idx + 1) + "\r\n";
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part += 'content-transfer-encoding: binary\r\n';
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part += '\r\n';
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part += serializedRequest + "\r\n";
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return part;
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}
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/**
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* Serializes a sub request into a string that can be embedded in a multipart HTTP request. The
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* format of the string is the wire format of a typical HTTP request, consisting of a header and a
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* body.
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*
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* @param request {SubRequest} The sub request to be serialized.
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* @return {string} String representation of the SubRequest.
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*/
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function serializeSubRequest(request) {
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var requestBody = JSON.stringify(request.body);
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var messagePayload = "POST " + request.url + " HTTP/1.1\r\n";
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messagePayload += "Content-Length: " + requestBody.length + "\r\n";
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messagePayload += 'Content-Type: application/json; charset=UTF-8\r\n';
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if (request.headers) {
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Object.keys(request.headers).forEach(function (key) {
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messagePayload += key + ": " + request.headers[key] + "\r\n";
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});
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}
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messagePayload += '\r\n';
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messagePayload += requestBody;
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return messagePayload;
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}
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