mirror of
https://github.com/musix-org/musix-oss
synced 2024-11-14 03:30:18 +00:00
1612 lines
53 KiB
JavaScript
1612 lines
53 KiB
JavaScript
/**
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* @license
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* Copyright 2017 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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/**
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* @fileoverview Firebase constants. Some of these (@defines) can be overridden at compile-time.
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*/
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const CONSTANTS = {
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/**
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* @define {boolean} Whether this is the client Node.js SDK.
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*/
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NODE_CLIENT: false,
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/**
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* @define {boolean} Whether this is the Admin Node.js SDK.
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*/
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NODE_ADMIN: false,
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/**
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* Firebase SDK Version
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*/
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SDK_VERSION: '${JSCORE_VERSION}'
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};
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/**
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* @license
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* Copyright 2017 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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/**
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* Throws an error if the provided assertion is falsy
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*/
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const assert = function (assertion, message) {
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if (!assertion) {
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throw assertionError(message);
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}
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};
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/**
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* Returns an Error object suitable for throwing.
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*/
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const assertionError = function (message) {
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return new Error('Firebase Database (' +
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CONSTANTS.SDK_VERSION +
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') INTERNAL ASSERT FAILED: ' +
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message);
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};
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/**
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* @license
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* Copyright 2017 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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const stringToByteArray = function (str) {
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// TODO(user): Use native implementations if/when available
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const out = [];
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let p = 0;
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for (let i = 0; i < str.length; i++) {
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let c = str.charCodeAt(i);
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if (c < 128) {
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out[p++] = c;
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}
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else if (c < 2048) {
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out[p++] = (c >> 6) | 192;
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out[p++] = (c & 63) | 128;
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}
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else if ((c & 0xfc00) === 0xd800 &&
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i + 1 < str.length &&
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(str.charCodeAt(i + 1) & 0xfc00) === 0xdc00) {
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// Surrogate Pair
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c = 0x10000 + ((c & 0x03ff) << 10) + (str.charCodeAt(++i) & 0x03ff);
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out[p++] = (c >> 18) | 240;
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out[p++] = ((c >> 12) & 63) | 128;
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out[p++] = ((c >> 6) & 63) | 128;
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out[p++] = (c & 63) | 128;
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}
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else {
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out[p++] = (c >> 12) | 224;
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out[p++] = ((c >> 6) & 63) | 128;
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out[p++] = (c & 63) | 128;
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}
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}
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return out;
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};
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/**
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* Turns an array of numbers into the string given by the concatenation of the
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* characters to which the numbers correspond.
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* @param bytes Array of numbers representing characters.
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* @return Stringification of the array.
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*/
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const byteArrayToString = function (bytes) {
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// TODO(user): Use native implementations if/when available
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const out = [];
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let pos = 0, c = 0;
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while (pos < bytes.length) {
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const c1 = bytes[pos++];
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if (c1 < 128) {
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out[c++] = String.fromCharCode(c1);
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}
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else if (c1 > 191 && c1 < 224) {
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const c2 = bytes[pos++];
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out[c++] = String.fromCharCode(((c1 & 31) << 6) | (c2 & 63));
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}
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else if (c1 > 239 && c1 < 365) {
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// Surrogate Pair
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const c2 = bytes[pos++];
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const c3 = bytes[pos++];
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const c4 = bytes[pos++];
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const u = (((c1 & 7) << 18) | ((c2 & 63) << 12) | ((c3 & 63) << 6) | (c4 & 63)) -
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0x10000;
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out[c++] = String.fromCharCode(0xd800 + (u >> 10));
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out[c++] = String.fromCharCode(0xdc00 + (u & 1023));
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}
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else {
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const c2 = bytes[pos++];
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const c3 = bytes[pos++];
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out[c++] = String.fromCharCode(((c1 & 15) << 12) | ((c2 & 63) << 6) | (c3 & 63));
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}
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}
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return out.join('');
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};
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// We define it as an object literal instead of a class because a class compiled down to es5 can't
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// be treeshaked. https://github.com/rollup/rollup/issues/1691
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// Static lookup maps, lazily populated by init_()
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const base64 = {
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/**
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* Maps bytes to characters.
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*/
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byteToCharMap_: null,
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/**
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* Maps characters to bytes.
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*/
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charToByteMap_: null,
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/**
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* Maps bytes to websafe characters.
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* @private
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*/
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byteToCharMapWebSafe_: null,
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/**
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* Maps websafe characters to bytes.
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* @private
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*/
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charToByteMapWebSafe_: null,
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/**
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* Our default alphabet, shared between
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* ENCODED_VALS and ENCODED_VALS_WEBSAFE
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*/
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ENCODED_VALS_BASE: 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' + 'abcdefghijklmnopqrstuvwxyz' + '0123456789',
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/**
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* Our default alphabet. Value 64 (=) is special; it means "nothing."
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*/
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get ENCODED_VALS() {
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return this.ENCODED_VALS_BASE + '+/=';
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},
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/**
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* Our websafe alphabet.
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*/
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get ENCODED_VALS_WEBSAFE() {
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return this.ENCODED_VALS_BASE + '-_.';
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},
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/**
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* Whether this browser supports the atob and btoa functions. This extension
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* started at Mozilla but is now implemented by many browsers. We use the
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* ASSUME_* variables to avoid pulling in the full useragent detection library
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* but still allowing the standard per-browser compilations.
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*
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*/
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HAS_NATIVE_SUPPORT: typeof atob === 'function',
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/**
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* Base64-encode an array of bytes.
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*
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* @param input An array of bytes (numbers with
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* value in [0, 255]) to encode.
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* @param webSafe Boolean indicating we should use the
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* alternative alphabet.
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* @return The base64 encoded string.
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*/
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encodeByteArray(input, webSafe) {
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if (!Array.isArray(input)) {
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throw Error('encodeByteArray takes an array as a parameter');
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}
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this.init_();
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const byteToCharMap = webSafe
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? this.byteToCharMapWebSafe_
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: this.byteToCharMap_;
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const output = [];
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for (let i = 0; i < input.length; i += 3) {
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const byte1 = input[i];
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const haveByte2 = i + 1 < input.length;
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const byte2 = haveByte2 ? input[i + 1] : 0;
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const haveByte3 = i + 2 < input.length;
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const byte3 = haveByte3 ? input[i + 2] : 0;
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const outByte1 = byte1 >> 2;
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const outByte2 = ((byte1 & 0x03) << 4) | (byte2 >> 4);
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let outByte3 = ((byte2 & 0x0f) << 2) | (byte3 >> 6);
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let outByte4 = byte3 & 0x3f;
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if (!haveByte3) {
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outByte4 = 64;
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if (!haveByte2) {
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outByte3 = 64;
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}
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}
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output.push(byteToCharMap[outByte1], byteToCharMap[outByte2], byteToCharMap[outByte3], byteToCharMap[outByte4]);
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}
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return output.join('');
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},
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/**
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* Base64-encode a string.
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*
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* @param input A string to encode.
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* @param webSafe If true, we should use the
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* alternative alphabet.
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* @return The base64 encoded string.
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*/
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encodeString(input, webSafe) {
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// Shortcut for Mozilla browsers that implement
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// a native base64 encoder in the form of "btoa/atob"
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if (this.HAS_NATIVE_SUPPORT && !webSafe) {
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return btoa(input);
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}
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return this.encodeByteArray(stringToByteArray(input), webSafe);
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},
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/**
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* Base64-decode a string.
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*
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* @param input to decode.
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* @param webSafe True if we should use the
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* alternative alphabet.
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* @return string representing the decoded value.
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*/
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decodeString(input, webSafe) {
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// Shortcut for Mozilla browsers that implement
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// a native base64 encoder in the form of "btoa/atob"
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if (this.HAS_NATIVE_SUPPORT && !webSafe) {
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return atob(input);
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}
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return byteArrayToString(this.decodeStringToByteArray(input, webSafe));
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},
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/**
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* Base64-decode a string.
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*
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* In base-64 decoding, groups of four characters are converted into three
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* bytes. If the encoder did not apply padding, the input length may not
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* be a multiple of 4.
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*
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* In this case, the last group will have fewer than 4 characters, and
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* padding will be inferred. If the group has one or two characters, it decodes
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* to one byte. If the group has three characters, it decodes to two bytes.
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*
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* @param input Input to decode.
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* @param webSafe True if we should use the web-safe alphabet.
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* @return bytes representing the decoded value.
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*/
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decodeStringToByteArray(input, webSafe) {
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this.init_();
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const charToByteMap = webSafe
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? this.charToByteMapWebSafe_
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: this.charToByteMap_;
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const output = [];
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for (let i = 0; i < input.length;) {
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const byte1 = charToByteMap[input.charAt(i++)];
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const haveByte2 = i < input.length;
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const byte2 = haveByte2 ? charToByteMap[input.charAt(i)] : 0;
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++i;
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const haveByte3 = i < input.length;
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const byte3 = haveByte3 ? charToByteMap[input.charAt(i)] : 64;
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++i;
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const haveByte4 = i < input.length;
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const byte4 = haveByte4 ? charToByteMap[input.charAt(i)] : 64;
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++i;
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if (byte1 == null || byte2 == null || byte3 == null || byte4 == null) {
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throw Error();
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}
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const outByte1 = (byte1 << 2) | (byte2 >> 4);
|
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output.push(outByte1);
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if (byte3 !== 64) {
|
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const outByte2 = ((byte2 << 4) & 0xf0) | (byte3 >> 2);
|
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output.push(outByte2);
|
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if (byte4 !== 64) {
|
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const outByte3 = ((byte3 << 6) & 0xc0) | byte4;
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output.push(outByte3);
|
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}
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}
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}
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return output;
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},
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/**
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* Lazy static initialization function. Called before
|
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* accessing any of the static map variables.
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* @private
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*/
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init_() {
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if (!this.byteToCharMap_) {
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this.byteToCharMap_ = {};
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this.charToByteMap_ = {};
|
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this.byteToCharMapWebSafe_ = {};
|
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this.charToByteMapWebSafe_ = {};
|
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// We want quick mappings back and forth, so we precompute two maps.
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for (let i = 0; i < this.ENCODED_VALS.length; i++) {
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this.byteToCharMap_[i] = this.ENCODED_VALS.charAt(i);
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this.charToByteMap_[this.byteToCharMap_[i]] = i;
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this.byteToCharMapWebSafe_[i] = this.ENCODED_VALS_WEBSAFE.charAt(i);
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this.charToByteMapWebSafe_[this.byteToCharMapWebSafe_[i]] = i;
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// Be forgiving when decoding and correctly decode both encodings.
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if (i >= this.ENCODED_VALS_BASE.length) {
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this.charToByteMap_[this.ENCODED_VALS_WEBSAFE.charAt(i)] = i;
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this.charToByteMapWebSafe_[this.ENCODED_VALS.charAt(i)] = i;
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}
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}
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}
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}
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};
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/**
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* URL-safe base64 encoding
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*/
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const base64Encode = function (str) {
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const utf8Bytes = stringToByteArray(str);
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return base64.encodeByteArray(utf8Bytes, true);
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};
|
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/**
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* URL-safe base64 decoding
|
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*
|
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* NOTE: DO NOT use the global atob() function - it does NOT support the
|
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* base64Url variant encoding.
|
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*
|
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* @param str To be decoded
|
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* @return Decoded result, if possible
|
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*/
|
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const base64Decode = function (str) {
|
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try {
|
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return base64.decodeString(str, true);
|
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}
|
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catch (e) {
|
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console.error('base64Decode failed: ', e);
|
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}
|
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return null;
|
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};
|
|
|
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/**
|
|
* @license
|
|
* 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.
|
|
*/
|
|
/**
|
|
* Do a deep-copy of basic JavaScript Objects or Arrays.
|
|
*/
|
|
function deepCopy(value) {
|
|
return deepExtend(undefined, value);
|
|
}
|
|
/**
|
|
* Copy properties from source to target (recursively allows extension
|
|
* of Objects and Arrays). Scalar values in the target are over-written.
|
|
* If target is undefined, an object of the appropriate type will be created
|
|
* (and returned).
|
|
*
|
|
* We recursively copy all child properties of plain Objects in the source- so
|
|
* that namespace- like dictionaries are merged.
|
|
*
|
|
* Note that the target can be a function, in which case the properties in
|
|
* the source Object are copied onto it as static properties of the Function.
|
|
*/
|
|
function deepExtend(target, source) {
|
|
if (!(source instanceof Object)) {
|
|
return source;
|
|
}
|
|
switch (source.constructor) {
|
|
case Date:
|
|
// Treat Dates like scalars; if the target date object had any child
|
|
// properties - they will be lost!
|
|
const dateValue = source;
|
|
return new Date(dateValue.getTime());
|
|
case Object:
|
|
if (target === undefined) {
|
|
target = {};
|
|
}
|
|
break;
|
|
case Array:
|
|
// Always copy the array source and overwrite the target.
|
|
target = [];
|
|
break;
|
|
default:
|
|
// Not a plain Object - treat it as a scalar.
|
|
return source;
|
|
}
|
|
for (const prop in source) {
|
|
if (!source.hasOwnProperty(prop)) {
|
|
continue;
|
|
}
|
|
target[prop] = deepExtend(target[prop], source[prop]);
|
|
}
|
|
return target;
|
|
}
|
|
|
|
/**
|
|
* @license
|
|
* 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.
|
|
*/
|
|
class Deferred {
|
|
constructor() {
|
|
this.reject = () => { };
|
|
this.resolve = () => { };
|
|
this.promise = new Promise((resolve, reject) => {
|
|
this.resolve = resolve;
|
|
this.reject = reject;
|
|
});
|
|
}
|
|
/**
|
|
* Our API internals are not promiseified and cannot because our callback APIs have subtle expectations around
|
|
* invoking promises inline, which Promises are forbidden to do. This method accepts an optional node-style callback
|
|
* and returns a node-style callback which will resolve or reject the Deferred's promise.
|
|
*/
|
|
wrapCallback(callback) {
|
|
return (error, value) => {
|
|
if (error) {
|
|
this.reject(error);
|
|
}
|
|
else {
|
|
this.resolve(value);
|
|
}
|
|
if (typeof callback === 'function') {
|
|
// Attaching noop handler just in case developer wasn't expecting
|
|
// promises
|
|
this.promise.catch(() => { });
|
|
// Some of our callbacks don't expect a value and our own tests
|
|
// assert that the parameter length is 1
|
|
if (callback.length === 1) {
|
|
callback(error);
|
|
}
|
|
else {
|
|
callback(error, value);
|
|
}
|
|
}
|
|
};
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @license
|
|
* 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.
|
|
*/
|
|
/**
|
|
* Returns navigator.userAgent string or '' if it's not defined.
|
|
* @return user agent string
|
|
*/
|
|
function getUA() {
|
|
if (typeof navigator !== 'undefined' &&
|
|
typeof navigator['userAgent'] === 'string') {
|
|
return navigator['userAgent'];
|
|
}
|
|
else {
|
|
return '';
|
|
}
|
|
}
|
|
/**
|
|
* Detect Cordova / PhoneGap / Ionic frameworks on a mobile device.
|
|
*
|
|
* Deliberately does not rely on checking `file://` URLs (as this fails PhoneGap
|
|
* in the Ripple emulator) nor Cordova `onDeviceReady`, which would normally
|
|
* wait for a callback.
|
|
*/
|
|
function isMobileCordova() {
|
|
return (typeof window !== 'undefined' &&
|
|
// @ts-ignore Setting up an broadly applicable index signature for Window
|
|
// just to deal with this case would probably be a bad idea.
|
|
!!(window['cordova'] || window['phonegap'] || window['PhoneGap']) &&
|
|
/ios|iphone|ipod|ipad|android|blackberry|iemobile/i.test(getUA()));
|
|
}
|
|
/**
|
|
* Detect Node.js.
|
|
*
|
|
* @return true if Node.js environment is detected.
|
|
*/
|
|
// Node detection logic from: https://github.com/iliakan/detect-node/
|
|
function isNode() {
|
|
try {
|
|
return (Object.prototype.toString.call(global.process) === '[object process]');
|
|
}
|
|
catch (e) {
|
|
return false;
|
|
}
|
|
}
|
|
/**
|
|
* Detect Browser Environment
|
|
*/
|
|
function isBrowser() {
|
|
return typeof self === 'object' && self.self === self;
|
|
}
|
|
function isBrowserExtension() {
|
|
const runtime = typeof chrome === 'object'
|
|
? chrome.runtime
|
|
: typeof browser === 'object'
|
|
? browser.runtime
|
|
: undefined;
|
|
return typeof runtime === 'object' && runtime.id !== undefined;
|
|
}
|
|
/**
|
|
* Detect React Native.
|
|
*
|
|
* @return true if ReactNative environment is detected.
|
|
*/
|
|
function isReactNative() {
|
|
return (typeof navigator === 'object' && navigator['product'] === 'ReactNative');
|
|
}
|
|
/** Detects Electron apps. */
|
|
function isElectron() {
|
|
return getUA().indexOf('Electron/') >= 0;
|
|
}
|
|
/** Detects Internet Explorer. */
|
|
function isIE() {
|
|
const ua = getUA();
|
|
return ua.indexOf('MSIE ') >= 0 || ua.indexOf('Trident/') >= 0;
|
|
}
|
|
/** Detects Universal Windows Platform apps. */
|
|
function isUWP() {
|
|
return getUA().indexOf('MSAppHost/') >= 0;
|
|
}
|
|
/**
|
|
* Detect whether the current SDK build is the Node version.
|
|
*
|
|
* @return true if it's the Node SDK build.
|
|
*/
|
|
function isNodeSdk() {
|
|
return CONSTANTS.NODE_CLIENT === true || CONSTANTS.NODE_ADMIN === true;
|
|
}
|
|
|
|
/**
|
|
* @license
|
|
* 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.
|
|
*/
|
|
/**
|
|
* @fileoverview Standardized Firebase Error.
|
|
*
|
|
* Usage:
|
|
*
|
|
* // Typescript string literals for type-safe codes
|
|
* type Err =
|
|
* 'unknown' |
|
|
* 'object-not-found'
|
|
* ;
|
|
*
|
|
* // Closure enum for type-safe error codes
|
|
* // at-enum {string}
|
|
* var Err = {
|
|
* UNKNOWN: 'unknown',
|
|
* OBJECT_NOT_FOUND: 'object-not-found',
|
|
* }
|
|
*
|
|
* let errors: Map<Err, string> = {
|
|
* 'generic-error': "Unknown error",
|
|
* 'file-not-found': "Could not find file: {$file}",
|
|
* };
|
|
*
|
|
* // Type-safe function - must pass a valid error code as param.
|
|
* let error = new ErrorFactory<Err>('service', 'Service', errors);
|
|
*
|
|
* ...
|
|
* throw error.create(Err.GENERIC);
|
|
* ...
|
|
* throw error.create(Err.FILE_NOT_FOUND, {'file': fileName});
|
|
* ...
|
|
* // Service: Could not file file: foo.txt (service/file-not-found).
|
|
*
|
|
* catch (e) {
|
|
* assert(e.message === "Could not find file: foo.txt.");
|
|
* if (e.code === 'service/file-not-found') {
|
|
* console.log("Could not read file: " + e['file']);
|
|
* }
|
|
* }
|
|
*/
|
|
const ERROR_NAME = 'FirebaseError';
|
|
// Based on code from:
|
|
// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Error#Custom_Error_Types
|
|
class FirebaseError extends Error {
|
|
constructor(code, message) {
|
|
super(message);
|
|
this.code = code;
|
|
this.name = ERROR_NAME;
|
|
// Fix For ES5
|
|
// https://github.com/Microsoft/TypeScript-wiki/blob/master/Breaking-Changes.md#extending-built-ins-like-error-array-and-map-may-no-longer-work
|
|
Object.setPrototypeOf(this, FirebaseError.prototype);
|
|
// Maintains proper stack trace for where our error was thrown.
|
|
// Only available on V8.
|
|
if (Error.captureStackTrace) {
|
|
Error.captureStackTrace(this, ErrorFactory.prototype.create);
|
|
}
|
|
}
|
|
}
|
|
class ErrorFactory {
|
|
constructor(service, serviceName, errors) {
|
|
this.service = service;
|
|
this.serviceName = serviceName;
|
|
this.errors = errors;
|
|
}
|
|
create(code, ...data) {
|
|
const customData = data[0] || {};
|
|
const fullCode = `${this.service}/${code}`;
|
|
const template = this.errors[code];
|
|
const message = template ? replaceTemplate(template, customData) : 'Error';
|
|
// Service Name: Error message (service/code).
|
|
const fullMessage = `${this.serviceName}: ${message} (${fullCode}).`;
|
|
const error = new FirebaseError(fullCode, fullMessage);
|
|
// Keys with an underscore at the end of their name are not included in
|
|
// error.data for some reason.
|
|
// TODO: Replace with Object.entries when lib is updated to es2017.
|
|
for (const key of Object.keys(customData)) {
|
|
if (key.slice(-1) !== '_') {
|
|
if (key in error) {
|
|
console.warn(`Overwriting FirebaseError base field "${key}" can cause unexpected behavior.`);
|
|
}
|
|
error[key] = customData[key];
|
|
}
|
|
}
|
|
return error;
|
|
}
|
|
}
|
|
function replaceTemplate(template, data) {
|
|
return template.replace(PATTERN, (_, key) => {
|
|
const value = data[key];
|
|
return value != null ? value.toString() : `<${key}?>`;
|
|
});
|
|
}
|
|
const PATTERN = /\{\$([^}]+)}/g;
|
|
|
|
/**
|
|
* @license
|
|
* 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.
|
|
*/
|
|
/**
|
|
* Evaluates a JSON string into a javascript object.
|
|
*
|
|
* @param {string} str A string containing JSON.
|
|
* @return {*} The javascript object representing the specified JSON.
|
|
*/
|
|
function jsonEval(str) {
|
|
return JSON.parse(str);
|
|
}
|
|
/**
|
|
* Returns JSON representing a javascript object.
|
|
* @param {*} data Javascript object to be stringified.
|
|
* @return {string} The JSON contents of the object.
|
|
*/
|
|
function stringify(data) {
|
|
return JSON.stringify(data);
|
|
}
|
|
|
|
/**
|
|
* @license
|
|
* 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.
|
|
*/
|
|
/**
|
|
* Decodes a Firebase auth. token into constituent parts.
|
|
*
|
|
* Notes:
|
|
* - May return with invalid / incomplete claims if there's no native base64 decoding support.
|
|
* - Doesn't check if the token is actually valid.
|
|
*/
|
|
const decode = function (token) {
|
|
let header = {}, claims = {}, data = {}, signature = '';
|
|
try {
|
|
const parts = token.split('.');
|
|
header = jsonEval(base64Decode(parts[0]) || '');
|
|
claims = jsonEval(base64Decode(parts[1]) || '');
|
|
signature = parts[2];
|
|
data = claims['d'] || {};
|
|
delete claims['d'];
|
|
}
|
|
catch (e) { }
|
|
return {
|
|
header,
|
|
claims,
|
|
data,
|
|
signature
|
|
};
|
|
};
|
|
/**
|
|
* Decodes a Firebase auth. token and checks the validity of its time-based claims. Will return true if the
|
|
* token is within the time window authorized by the 'nbf' (not-before) and 'iat' (issued-at) claims.
|
|
*
|
|
* Notes:
|
|
* - May return a false negative if there's no native base64 decoding support.
|
|
* - Doesn't check if the token is actually valid.
|
|
*/
|
|
const isValidTimestamp = function (token) {
|
|
const claims = decode(token).claims;
|
|
const now = Math.floor(new Date().getTime() / 1000);
|
|
let validSince = 0, validUntil = 0;
|
|
if (typeof claims === 'object') {
|
|
if (claims.hasOwnProperty('nbf')) {
|
|
validSince = claims['nbf'];
|
|
}
|
|
else if (claims.hasOwnProperty('iat')) {
|
|
validSince = claims['iat'];
|
|
}
|
|
if (claims.hasOwnProperty('exp')) {
|
|
validUntil = claims['exp'];
|
|
}
|
|
else {
|
|
// token will expire after 24h by default
|
|
validUntil = validSince + 86400;
|
|
}
|
|
}
|
|
return (!!now &&
|
|
!!validSince &&
|
|
!!validUntil &&
|
|
now >= validSince &&
|
|
now <= validUntil);
|
|
};
|
|
/**
|
|
* Decodes a Firebase auth. token and returns its issued at time if valid, null otherwise.
|
|
*
|
|
* Notes:
|
|
* - May return null if there's no native base64 decoding support.
|
|
* - Doesn't check if the token is actually valid.
|
|
*/
|
|
const issuedAtTime = function (token) {
|
|
const claims = decode(token).claims;
|
|
if (typeof claims === 'object' && claims.hasOwnProperty('iat')) {
|
|
return claims['iat'];
|
|
}
|
|
return null;
|
|
};
|
|
/**
|
|
* Decodes a Firebase auth. token and checks the validity of its format. Expects a valid issued-at time.
|
|
*
|
|
* Notes:
|
|
* - May return a false negative if there's no native base64 decoding support.
|
|
* - Doesn't check if the token is actually valid.
|
|
*/
|
|
const isValidFormat = function (token) {
|
|
const decoded = decode(token), claims = decoded.claims;
|
|
return !!claims && typeof claims === 'object' && claims.hasOwnProperty('iat');
|
|
};
|
|
/**
|
|
* Attempts to peer into an auth token and determine if it's an admin auth token by looking at the claims portion.
|
|
*
|
|
* Notes:
|
|
* - May return a false negative if there's no native base64 decoding support.
|
|
* - Doesn't check if the token is actually valid.
|
|
*/
|
|
const isAdmin = function (token) {
|
|
const claims = decode(token).claims;
|
|
return typeof claims === 'object' && claims['admin'] === true;
|
|
};
|
|
|
|
/**
|
|
* @license
|
|
* 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.
|
|
*/
|
|
function contains(obj, key) {
|
|
return Object.prototype.hasOwnProperty.call(obj, key);
|
|
}
|
|
function safeGet(obj, key) {
|
|
if (Object.prototype.hasOwnProperty.call(obj, key)) {
|
|
return obj[key];
|
|
}
|
|
else {
|
|
return undefined;
|
|
}
|
|
}
|
|
function isEmpty(obj) {
|
|
for (const key in obj) {
|
|
if (Object.prototype.hasOwnProperty.call(obj, key)) {
|
|
return false;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
function map(obj, fn, contextObj) {
|
|
const res = {};
|
|
for (const key in obj) {
|
|
if (Object.prototype.hasOwnProperty.call(obj, key)) {
|
|
res[key] = fn.call(contextObj, obj[key], key, obj);
|
|
}
|
|
}
|
|
return res;
|
|
}
|
|
|
|
/**
|
|
* @license
|
|
* 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.
|
|
*/
|
|
/**
|
|
* Returns a querystring-formatted string (e.g. &arg=val&arg2=val2) from a
|
|
* params object (e.g. {arg: 'val', arg2: 'val2'})
|
|
* Note: You must prepend it with ? when adding it to a URL.
|
|
*/
|
|
function querystring(querystringParams) {
|
|
const params = [];
|
|
for (const [key, value] of Object.entries(querystringParams)) {
|
|
if (Array.isArray(value)) {
|
|
value.forEach(arrayVal => {
|
|
params.push(encodeURIComponent(key) + '=' + encodeURIComponent(arrayVal));
|
|
});
|
|
}
|
|
else {
|
|
params.push(encodeURIComponent(key) + '=' + encodeURIComponent(value));
|
|
}
|
|
}
|
|
return params.length ? '&' + params.join('&') : '';
|
|
}
|
|
/**
|
|
* Decodes a querystring (e.g. ?arg=val&arg2=val2) into a params object
|
|
* (e.g. {arg: 'val', arg2: 'val2'})
|
|
*/
|
|
function querystringDecode(querystring) {
|
|
const obj = {};
|
|
const tokens = querystring.replace(/^\?/, '').split('&');
|
|
tokens.forEach(token => {
|
|
if (token) {
|
|
const key = token.split('=');
|
|
obj[key[0]] = key[1];
|
|
}
|
|
});
|
|
return obj;
|
|
}
|
|
|
|
/**
|
|
* @license
|
|
* 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.
|
|
*/
|
|
/**
|
|
* @fileoverview SHA-1 cryptographic hash.
|
|
* Variable names follow the notation in FIPS PUB 180-3:
|
|
* http://csrc.nist.gov/publications/fips/fips180-3/fips180-3_final.pdf.
|
|
*
|
|
* Usage:
|
|
* var sha1 = new sha1();
|
|
* sha1.update(bytes);
|
|
* var hash = sha1.digest();
|
|
*
|
|
* Performance:
|
|
* Chrome 23: ~400 Mbit/s
|
|
* Firefox 16: ~250 Mbit/s
|
|
*
|
|
*/
|
|
/**
|
|
* SHA-1 cryptographic hash constructor.
|
|
*
|
|
* The properties declared here are discussed in the above algorithm document.
|
|
* @constructor
|
|
* @final
|
|
* @struct
|
|
*/
|
|
class Sha1 {
|
|
constructor() {
|
|
/**
|
|
* Holds the previous values of accumulated variables a-e in the compress_
|
|
* function.
|
|
* @private
|
|
*/
|
|
this.chain_ = [];
|
|
/**
|
|
* A buffer holding the partially computed hash result.
|
|
* @private
|
|
*/
|
|
this.buf_ = [];
|
|
/**
|
|
* An array of 80 bytes, each a part of the message to be hashed. Referred to
|
|
* as the message schedule in the docs.
|
|
* @private
|
|
*/
|
|
this.W_ = [];
|
|
/**
|
|
* Contains data needed to pad messages less than 64 bytes.
|
|
* @private
|
|
*/
|
|
this.pad_ = [];
|
|
/**
|
|
* @private {number}
|
|
*/
|
|
this.inbuf_ = 0;
|
|
/**
|
|
* @private {number}
|
|
*/
|
|
this.total_ = 0;
|
|
this.blockSize = 512 / 8;
|
|
this.pad_[0] = 128;
|
|
for (let i = 1; i < this.blockSize; ++i) {
|
|
this.pad_[i] = 0;
|
|
}
|
|
this.reset();
|
|
}
|
|
reset() {
|
|
this.chain_[0] = 0x67452301;
|
|
this.chain_[1] = 0xefcdab89;
|
|
this.chain_[2] = 0x98badcfe;
|
|
this.chain_[3] = 0x10325476;
|
|
this.chain_[4] = 0xc3d2e1f0;
|
|
this.inbuf_ = 0;
|
|
this.total_ = 0;
|
|
}
|
|
/**
|
|
* Internal compress helper function.
|
|
* @param buf Block to compress.
|
|
* @param offset Offset of the block in the buffer.
|
|
* @private
|
|
*/
|
|
compress_(buf, offset) {
|
|
if (!offset) {
|
|
offset = 0;
|
|
}
|
|
const W = this.W_;
|
|
// get 16 big endian words
|
|
if (typeof buf === 'string') {
|
|
for (let i = 0; i < 16; i++) {
|
|
// TODO(user): [bug 8140122] Recent versions of Safari for Mac OS and iOS
|
|
// have a bug that turns the post-increment ++ operator into pre-increment
|
|
// during JIT compilation. We have code that depends heavily on SHA-1 for
|
|
// correctness and which is affected by this bug, so I've removed all uses
|
|
// of post-increment ++ in which the result value is used. We can revert
|
|
// this change once the Safari bug
|
|
// (https://bugs.webkit.org/show_bug.cgi?id=109036) has been fixed and
|
|
// most clients have been updated.
|
|
W[i] =
|
|
(buf.charCodeAt(offset) << 24) |
|
|
(buf.charCodeAt(offset + 1) << 16) |
|
|
(buf.charCodeAt(offset + 2) << 8) |
|
|
buf.charCodeAt(offset + 3);
|
|
offset += 4;
|
|
}
|
|
}
|
|
else {
|
|
for (let i = 0; i < 16; i++) {
|
|
W[i] =
|
|
(buf[offset] << 24) |
|
|
(buf[offset + 1] << 16) |
|
|
(buf[offset + 2] << 8) |
|
|
buf[offset + 3];
|
|
offset += 4;
|
|
}
|
|
}
|
|
// expand to 80 words
|
|
for (let i = 16; i < 80; i++) {
|
|
const t = W[i - 3] ^ W[i - 8] ^ W[i - 14] ^ W[i - 16];
|
|
W[i] = ((t << 1) | (t >>> 31)) & 0xffffffff;
|
|
}
|
|
let a = this.chain_[0];
|
|
let b = this.chain_[1];
|
|
let c = this.chain_[2];
|
|
let d = this.chain_[3];
|
|
let e = this.chain_[4];
|
|
let f, k;
|
|
// TODO(user): Try to unroll this loop to speed up the computation.
|
|
for (let i = 0; i < 80; i++) {
|
|
if (i < 40) {
|
|
if (i < 20) {
|
|
f = d ^ (b & (c ^ d));
|
|
k = 0x5a827999;
|
|
}
|
|
else {
|
|
f = b ^ c ^ d;
|
|
k = 0x6ed9eba1;
|
|
}
|
|
}
|
|
else {
|
|
if (i < 60) {
|
|
f = (b & c) | (d & (b | c));
|
|
k = 0x8f1bbcdc;
|
|
}
|
|
else {
|
|
f = b ^ c ^ d;
|
|
k = 0xca62c1d6;
|
|
}
|
|
}
|
|
const t = (((a << 5) | (a >>> 27)) + f + e + k + W[i]) & 0xffffffff;
|
|
e = d;
|
|
d = c;
|
|
c = ((b << 30) | (b >>> 2)) & 0xffffffff;
|
|
b = a;
|
|
a = t;
|
|
}
|
|
this.chain_[0] = (this.chain_[0] + a) & 0xffffffff;
|
|
this.chain_[1] = (this.chain_[1] + b) & 0xffffffff;
|
|
this.chain_[2] = (this.chain_[2] + c) & 0xffffffff;
|
|
this.chain_[3] = (this.chain_[3] + d) & 0xffffffff;
|
|
this.chain_[4] = (this.chain_[4] + e) & 0xffffffff;
|
|
}
|
|
update(bytes, length) {
|
|
// TODO(johnlenz): tighten the function signature and remove this check
|
|
if (bytes == null) {
|
|
return;
|
|
}
|
|
if (length === undefined) {
|
|
length = bytes.length;
|
|
}
|
|
const lengthMinusBlock = length - this.blockSize;
|
|
let n = 0;
|
|
// Using local instead of member variables gives ~5% speedup on Firefox 16.
|
|
const buf = this.buf_;
|
|
let inbuf = this.inbuf_;
|
|
// The outer while loop should execute at most twice.
|
|
while (n < length) {
|
|
// When we have no data in the block to top up, we can directly process the
|
|
// input buffer (assuming it contains sufficient data). This gives ~25%
|
|
// speedup on Chrome 23 and ~15% speedup on Firefox 16, but requires that
|
|
// the data is provided in large chunks (or in multiples of 64 bytes).
|
|
if (inbuf === 0) {
|
|
while (n <= lengthMinusBlock) {
|
|
this.compress_(bytes, n);
|
|
n += this.blockSize;
|
|
}
|
|
}
|
|
if (typeof bytes === 'string') {
|
|
while (n < length) {
|
|
buf[inbuf] = bytes.charCodeAt(n);
|
|
++inbuf;
|
|
++n;
|
|
if (inbuf === this.blockSize) {
|
|
this.compress_(buf);
|
|
inbuf = 0;
|
|
// Jump to the outer loop so we use the full-block optimization.
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
while (n < length) {
|
|
buf[inbuf] = bytes[n];
|
|
++inbuf;
|
|
++n;
|
|
if (inbuf === this.blockSize) {
|
|
this.compress_(buf);
|
|
inbuf = 0;
|
|
// Jump to the outer loop so we use the full-block optimization.
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
this.inbuf_ = inbuf;
|
|
this.total_ += length;
|
|
}
|
|
/** @override */
|
|
digest() {
|
|
const digest = [];
|
|
let totalBits = this.total_ * 8;
|
|
// Add pad 0x80 0x00*.
|
|
if (this.inbuf_ < 56) {
|
|
this.update(this.pad_, 56 - this.inbuf_);
|
|
}
|
|
else {
|
|
this.update(this.pad_, this.blockSize - (this.inbuf_ - 56));
|
|
}
|
|
// Add # bits.
|
|
for (let i = this.blockSize - 1; i >= 56; i--) {
|
|
this.buf_[i] = totalBits & 255;
|
|
totalBits /= 256; // Don't use bit-shifting here!
|
|
}
|
|
this.compress_(this.buf_);
|
|
let n = 0;
|
|
for (let i = 0; i < 5; i++) {
|
|
for (let j = 24; j >= 0; j -= 8) {
|
|
digest[n] = (this.chain_[i] >> j) & 255;
|
|
++n;
|
|
}
|
|
}
|
|
return digest;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Helper to make a Subscribe function (just like Promise helps make a
|
|
* Thenable).
|
|
*
|
|
* @param executor Function which can make calls to a single Observer
|
|
* as a proxy.
|
|
* @param onNoObservers Callback when count of Observers goes to zero.
|
|
*/
|
|
function createSubscribe(executor, onNoObservers) {
|
|
const proxy = new ObserverProxy(executor, onNoObservers);
|
|
return proxy.subscribe.bind(proxy);
|
|
}
|
|
/**
|
|
* Implement fan-out for any number of Observers attached via a subscribe
|
|
* function.
|
|
*/
|
|
class ObserverProxy {
|
|
/**
|
|
* @param executor Function which can make calls to a single Observer
|
|
* as a proxy.
|
|
* @param onNoObservers Callback when count of Observers goes to zero.
|
|
*/
|
|
constructor(executor, onNoObservers) {
|
|
this.observers = [];
|
|
this.unsubscribes = [];
|
|
this.observerCount = 0;
|
|
// Micro-task scheduling by calling task.then().
|
|
this.task = Promise.resolve();
|
|
this.finalized = false;
|
|
this.onNoObservers = onNoObservers;
|
|
// Call the executor asynchronously so subscribers that are called
|
|
// synchronously after the creation of the subscribe function
|
|
// can still receive the very first value generated in the executor.
|
|
this.task
|
|
.then(() => {
|
|
executor(this);
|
|
})
|
|
.catch(e => {
|
|
this.error(e);
|
|
});
|
|
}
|
|
next(value) {
|
|
this.forEachObserver((observer) => {
|
|
observer.next(value);
|
|
});
|
|
}
|
|
error(error) {
|
|
this.forEachObserver((observer) => {
|
|
observer.error(error);
|
|
});
|
|
this.close(error);
|
|
}
|
|
complete() {
|
|
this.forEachObserver((observer) => {
|
|
observer.complete();
|
|
});
|
|
this.close();
|
|
}
|
|
/**
|
|
* Subscribe function that can be used to add an Observer to the fan-out list.
|
|
*
|
|
* - We require that no event is sent to a subscriber sychronously to their
|
|
* call to subscribe().
|
|
*/
|
|
subscribe(nextOrObserver, error, complete) {
|
|
let observer;
|
|
if (nextOrObserver === undefined &&
|
|
error === undefined &&
|
|
complete === undefined) {
|
|
throw new Error('Missing Observer.');
|
|
}
|
|
// Assemble an Observer object when passed as callback functions.
|
|
if (implementsAnyMethods(nextOrObserver, [
|
|
'next',
|
|
'error',
|
|
'complete'
|
|
])) {
|
|
observer = nextOrObserver;
|
|
}
|
|
else {
|
|
observer = {
|
|
next: nextOrObserver,
|
|
error,
|
|
complete
|
|
};
|
|
}
|
|
if (observer.next === undefined) {
|
|
observer.next = noop;
|
|
}
|
|
if (observer.error === undefined) {
|
|
observer.error = noop;
|
|
}
|
|
if (observer.complete === undefined) {
|
|
observer.complete = noop;
|
|
}
|
|
const unsub = this.unsubscribeOne.bind(this, this.observers.length);
|
|
// Attempt to subscribe to a terminated Observable - we
|
|
// just respond to the Observer with the final error or complete
|
|
// event.
|
|
if (this.finalized) {
|
|
// eslint-disable-next-line @typescript-eslint/no-floating-promises
|
|
this.task.then(() => {
|
|
try {
|
|
if (this.finalError) {
|
|
observer.error(this.finalError);
|
|
}
|
|
else {
|
|
observer.complete();
|
|
}
|
|
}
|
|
catch (e) {
|
|
// nothing
|
|
}
|
|
return;
|
|
});
|
|
}
|
|
this.observers.push(observer);
|
|
return unsub;
|
|
}
|
|
// Unsubscribe is synchronous - we guarantee that no events are sent to
|
|
// any unsubscribed Observer.
|
|
unsubscribeOne(i) {
|
|
if (this.observers === undefined || this.observers[i] === undefined) {
|
|
return;
|
|
}
|
|
delete this.observers[i];
|
|
this.observerCount -= 1;
|
|
if (this.observerCount === 0 && this.onNoObservers !== undefined) {
|
|
this.onNoObservers(this);
|
|
}
|
|
}
|
|
forEachObserver(fn) {
|
|
if (this.finalized) {
|
|
// Already closed by previous event....just eat the additional values.
|
|
return;
|
|
}
|
|
// Since sendOne calls asynchronously - there is no chance that
|
|
// this.observers will become undefined.
|
|
for (let i = 0; i < this.observers.length; i++) {
|
|
this.sendOne(i, fn);
|
|
}
|
|
}
|
|
// Call the Observer via one of it's callback function. We are careful to
|
|
// confirm that the observe has not been unsubscribed since this asynchronous
|
|
// function had been queued.
|
|
sendOne(i, fn) {
|
|
// Execute the callback asynchronously
|
|
// eslint-disable-next-line @typescript-eslint/no-floating-promises
|
|
this.task.then(() => {
|
|
if (this.observers !== undefined && this.observers[i] !== undefined) {
|
|
try {
|
|
fn(this.observers[i]);
|
|
}
|
|
catch (e) {
|
|
// Ignore exceptions raised in Observers or missing methods of an
|
|
// Observer.
|
|
// Log error to console. b/31404806
|
|
if (typeof console !== 'undefined' && console.error) {
|
|
console.error(e);
|
|
}
|
|
}
|
|
}
|
|
});
|
|
}
|
|
close(err) {
|
|
if (this.finalized) {
|
|
return;
|
|
}
|
|
this.finalized = true;
|
|
if (err !== undefined) {
|
|
this.finalError = err;
|
|
}
|
|
// Proxy is no longer needed - garbage collect references
|
|
// eslint-disable-next-line @typescript-eslint/no-floating-promises
|
|
this.task.then(() => {
|
|
this.observers = undefined;
|
|
this.onNoObservers = undefined;
|
|
});
|
|
}
|
|
}
|
|
/** Turn synchronous function into one called asynchronously. */
|
|
function async(fn, onError) {
|
|
return (...args) => {
|
|
Promise.resolve(true)
|
|
.then(() => {
|
|
fn(...args);
|
|
})
|
|
.catch((error) => {
|
|
if (onError) {
|
|
onError(error);
|
|
}
|
|
});
|
|
};
|
|
}
|
|
/**
|
|
* Return true if the object passed in implements any of the named methods.
|
|
*/
|
|
function implementsAnyMethods(obj, methods) {
|
|
if (typeof obj !== 'object' || obj === null) {
|
|
return false;
|
|
}
|
|
for (const method of methods) {
|
|
if (method in obj && typeof obj[method] === 'function') {
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
function noop() {
|
|
// do nothing
|
|
}
|
|
|
|
/**
|
|
* @license
|
|
* 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.
|
|
*/
|
|
/**
|
|
* Check to make sure the appropriate number of arguments are provided for a public function.
|
|
* Throws an error if it fails.
|
|
*
|
|
* @param fnName The function name
|
|
* @param minCount The minimum number of arguments to allow for the function call
|
|
* @param maxCount The maximum number of argument to allow for the function call
|
|
* @param argCount The actual number of arguments provided.
|
|
*/
|
|
const validateArgCount = function (fnName, minCount, maxCount, argCount) {
|
|
let argError;
|
|
if (argCount < minCount) {
|
|
argError = 'at least ' + minCount;
|
|
}
|
|
else if (argCount > maxCount) {
|
|
argError = maxCount === 0 ? 'none' : 'no more than ' + maxCount;
|
|
}
|
|
if (argError) {
|
|
const error = fnName +
|
|
' failed: Was called with ' +
|
|
argCount +
|
|
(argCount === 1 ? ' argument.' : ' arguments.') +
|
|
' Expects ' +
|
|
argError +
|
|
'.';
|
|
throw new Error(error);
|
|
}
|
|
};
|
|
/**
|
|
* Generates a string to prefix an error message about failed argument validation
|
|
*
|
|
* @param fnName The function name
|
|
* @param argumentNumber The index of the argument
|
|
* @param optional Whether or not the argument is optional
|
|
* @return The prefix to add to the error thrown for validation.
|
|
*/
|
|
function errorPrefix(fnName, argumentNumber, optional) {
|
|
let argName = '';
|
|
switch (argumentNumber) {
|
|
case 1:
|
|
argName = optional ? 'first' : 'First';
|
|
break;
|
|
case 2:
|
|
argName = optional ? 'second' : 'Second';
|
|
break;
|
|
case 3:
|
|
argName = optional ? 'third' : 'Third';
|
|
break;
|
|
case 4:
|
|
argName = optional ? 'fourth' : 'Fourth';
|
|
break;
|
|
default:
|
|
throw new Error('errorPrefix called with argumentNumber > 4. Need to update it?');
|
|
}
|
|
let error = fnName + ' failed: ';
|
|
error += argName + ' argument ';
|
|
return error;
|
|
}
|
|
/**
|
|
* @param fnName
|
|
* @param argumentNumber
|
|
* @param namespace
|
|
* @param optional
|
|
*/
|
|
function validateNamespace(fnName, argumentNumber, namespace, optional) {
|
|
if (optional && !namespace) {
|
|
return;
|
|
}
|
|
if (typeof namespace !== 'string') {
|
|
//TODO: I should do more validation here. We only allow certain chars in namespaces.
|
|
throw new Error(errorPrefix(fnName, argumentNumber, optional) +
|
|
'must be a valid firebase namespace.');
|
|
}
|
|
}
|
|
function validateCallback(fnName, argumentNumber, callback, optional) {
|
|
if (optional && !callback) {
|
|
return;
|
|
}
|
|
if (typeof callback !== 'function') {
|
|
throw new Error(errorPrefix(fnName, argumentNumber, optional) +
|
|
'must be a valid function.');
|
|
}
|
|
}
|
|
function validateContextObject(fnName, argumentNumber, context, optional) {
|
|
if (optional && !context) {
|
|
return;
|
|
}
|
|
if (typeof context !== 'object' || context === null) {
|
|
throw new Error(errorPrefix(fnName, argumentNumber, optional) +
|
|
'must be a valid context object.');
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @license
|
|
* 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.
|
|
*/
|
|
// Code originally came from goog.crypt.stringToUtf8ByteArray, but for some reason they
|
|
// automatically replaced '\r\n' with '\n', and they didn't handle surrogate pairs,
|
|
// so it's been modified.
|
|
// Note that not all Unicode characters appear as single characters in JavaScript strings.
|
|
// fromCharCode returns the UTF-16 encoding of a character - so some Unicode characters
|
|
// use 2 characters in Javascript. All 4-byte UTF-8 characters begin with a first
|
|
// character in the range 0xD800 - 0xDBFF (the first character of a so-called surrogate
|
|
// pair).
|
|
// See http://www.ecma-international.org/ecma-262/5.1/#sec-15.1.3
|
|
/**
|
|
* @param {string} str
|
|
* @return {Array}
|
|
*/
|
|
const stringToByteArray$1 = function (str) {
|
|
const out = [];
|
|
let p = 0;
|
|
for (let i = 0; i < str.length; i++) {
|
|
let c = str.charCodeAt(i);
|
|
// Is this the lead surrogate in a surrogate pair?
|
|
if (c >= 0xd800 && c <= 0xdbff) {
|
|
const high = c - 0xd800; // the high 10 bits.
|
|
i++;
|
|
assert(i < str.length, 'Surrogate pair missing trail surrogate.');
|
|
const low = str.charCodeAt(i) - 0xdc00; // the low 10 bits.
|
|
c = 0x10000 + (high << 10) + low;
|
|
}
|
|
if (c < 128) {
|
|
out[p++] = c;
|
|
}
|
|
else if (c < 2048) {
|
|
out[p++] = (c >> 6) | 192;
|
|
out[p++] = (c & 63) | 128;
|
|
}
|
|
else if (c < 65536) {
|
|
out[p++] = (c >> 12) | 224;
|
|
out[p++] = ((c >> 6) & 63) | 128;
|
|
out[p++] = (c & 63) | 128;
|
|
}
|
|
else {
|
|
out[p++] = (c >> 18) | 240;
|
|
out[p++] = ((c >> 12) & 63) | 128;
|
|
out[p++] = ((c >> 6) & 63) | 128;
|
|
out[p++] = (c & 63) | 128;
|
|
}
|
|
}
|
|
return out;
|
|
};
|
|
/**
|
|
* Calculate length without actually converting; useful for doing cheaper validation.
|
|
* @param {string} str
|
|
* @return {number}
|
|
*/
|
|
const stringLength = function (str) {
|
|
let p = 0;
|
|
for (let i = 0; i < str.length; i++) {
|
|
const c = str.charCodeAt(i);
|
|
if (c < 128) {
|
|
p++;
|
|
}
|
|
else if (c < 2048) {
|
|
p += 2;
|
|
}
|
|
else if (c >= 0xd800 && c <= 0xdbff) {
|
|
// Lead surrogate of a surrogate pair. The pair together will take 4 bytes to represent.
|
|
p += 4;
|
|
i++; // skip trail surrogate.
|
|
}
|
|
else {
|
|
p += 3;
|
|
}
|
|
}
|
|
return p;
|
|
};
|
|
|
|
export { CONSTANTS, Deferred, ErrorFactory, FirebaseError, Sha1, assert, assertionError, async, base64, base64Decode, base64Encode, contains, createSubscribe, decode, deepCopy, deepExtend, errorPrefix, getUA, isAdmin, isBrowser, isBrowserExtension, isElectron, isEmpty, isIE, isMobileCordova, isNode, isNodeSdk, isReactNative, isUWP, isValidFormat, isValidTimestamp, issuedAtTime, jsonEval, map, querystring, querystringDecode, safeGet, stringLength, stringToByteArray$1 as stringToByteArray, stringify, validateArgCount, validateCallback, validateContextObject, validateNamespace };
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|
//# sourceMappingURL=index.esm2017.js.map
|