firebase-admin
Version:
Firebase admin SDK for Node.js
146 lines (145 loc) • 6.31 kB
JavaScript
/*! firebase-admin v5.11.0 */
;
/*!
* Copyright 2017 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
Object.defineProperty(exports, "__esModule", { value: true });
var api_request_1 = require("../utils/api-request");
var error_1 = require("../utils/error");
var validator = require("../utils/validator");
// FCM backend constants
var FIREBASE_MESSAGING_PORT = 443;
var FIREBASE_MESSAGING_TIMEOUT = 10000;
var FIREBASE_MESSAGING_HTTP_METHOD = 'POST';
var FIREBASE_MESSAGING_HEADERS = {
'Content-Type': 'application/json',
'Sdk-Version': 'Node/Admin/5.11.0',
'access_token_auth': 'true',
};
/**
* Class that provides a mechanism to send requests to the Firebase Cloud Messaging backend.
*/
var FirebaseMessagingRequestHandler = /** @class */ (function () {
/**
* @param {FirebaseApp} app The app used to fetch access tokens to sign API requests.
* @constructor
*/
function FirebaseMessagingRequestHandler(app) {
this.signedApiRequestHandler = new api_request_1.SignedApiRequestHandler(app);
}
/**
* @param {object} response The response to check for errors.
* @return {string|null} The error code if present; null otherwise.
*/
FirebaseMessagingRequestHandler.getErrorCode = function (response) {
if (validator.isNonNullObject(response) && 'error' in response) {
if (typeof response.error === 'string') {
return response.error;
}
else if ('status' in response.error) {
return response.error.status;
}
else {
return response.error.message;
}
}
return null;
};
/**
* Extracts error message from the given response object.
*
* @param {object} response The response to check for errors.
* @return {string|null} The error message if present; null otherwise.
*/
FirebaseMessagingRequestHandler.getErrorMessage = function (response) {
if (validator.isNonNullObject(response) &&
'error' in response &&
validator.isNonEmptyString(response.error.message)) {
return response.error.message;
}
return null;
};
/**
* Invokes the request handler with the provided request data.
*
* @param {string} host The host to which to send the request.
* @param {string} path The path to which to send the request.
* @param {object} requestData The request data.
* @return {Promise<object>} A promise that resolves with the response.
*/
FirebaseMessagingRequestHandler.prototype.invokeRequestHandler = function (host, path, requestData) {
return this.signedApiRequestHandler.sendRequest(host, FIREBASE_MESSAGING_PORT, path, FIREBASE_MESSAGING_HTTP_METHOD, requestData, FIREBASE_MESSAGING_HEADERS, FIREBASE_MESSAGING_TIMEOUT).then(function (response) {
// Send non-JSON responses to the catch() below where they will be treated as errors.
if (typeof response === 'string') {
return Promise.reject({
error: response,
statusCode: 200,
});
}
// Check for backend errors in the response.
var errorCode = FirebaseMessagingRequestHandler.getErrorCode(response);
if (errorCode) {
return Promise.reject({
error: response,
statusCode: 200,
});
}
// Return entire response.
return response;
})
.catch(function (response) {
// Re-throw the error if it already has the proper format.
if (response instanceof error_1.FirebaseError) {
throw response;
}
else if (response.error instanceof error_1.FirebaseError) {
throw response.error;
}
// Add special handling for non-JSON responses.
if (typeof response.error === 'string') {
var error = void 0;
switch (response.statusCode) {
case 400:
error = error_1.MessagingClientErrorCode.INVALID_ARGUMENT;
break;
case 401:
case 403:
error = error_1.MessagingClientErrorCode.AUTHENTICATION_ERROR;
break;
case 500:
error = error_1.MessagingClientErrorCode.INTERNAL_ERROR;
break;
case 503:
error = error_1.MessagingClientErrorCode.SERVER_UNAVAILABLE;
break;
default:
// Treat non-JSON responses with unexpected status codes as unknown errors.
error = error_1.MessagingClientErrorCode.UNKNOWN_ERROR;
}
throw new error_1.FirebaseMessagingError({
code: error.code,
message: error.message + " Raw server response: \"" + response.error + "\". Status code: " +
(response.statusCode + "."),
});
}
// For JSON responses, map the server response to a client-side error.
var errorCode = FirebaseMessagingRequestHandler.getErrorCode(response.error);
var errorMessage = FirebaseMessagingRequestHandler.getErrorMessage(response.error);
throw error_1.FirebaseMessagingError.fromServerError(errorCode, errorMessage, response.error);
});
};
return FirebaseMessagingRequestHandler;
}());
exports.FirebaseMessagingRequestHandler = FirebaseMessagingRequestHandler;