@aws-amplify/core
Version:
Core category of aws-amplify
222 lines (221 loc) • 8.38 kB
JavaScript
;
// Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
// SPDX-License-Identifier: Apache-2.0
Object.defineProperty(exports, "__esModule", { value: true });
exports.isStrictObject = exports.transferKeyToUpperCase = exports.transferKeyToLowerCase = exports.browserOrNode = exports.isWebWorker = exports.makeQuerablePromise = exports.generateRandomString = exports.isTextFile = exports.filenameToContentType = exports.objectLessAttributes = exports.sortByField = exports.isEmpty = void 0;
var MIME_MAP = [
{ type: 'text/plain', ext: 'txt' },
{ type: 'text/html', ext: 'html' },
{ type: 'text/javascript', ext: 'js' },
{ type: 'text/css', ext: 'css' },
{ type: 'text/csv', ext: 'csv' },
{ type: 'text/yaml', ext: 'yml' },
{ type: 'text/yaml', ext: 'yaml' },
{ type: 'text/calendar', ext: 'ics' },
{ type: 'text/calendar', ext: 'ical' },
{ type: 'image/apng', ext: 'apng' },
{ type: 'image/bmp', ext: 'bmp' },
{ type: 'image/gif', ext: 'gif' },
{ type: 'image/x-icon', ext: 'ico' },
{ type: 'image/x-icon', ext: 'cur' },
{ type: 'image/jpeg', ext: 'jpg' },
{ type: 'image/jpeg', ext: 'jpeg' },
{ type: 'image/jpeg', ext: 'jfif' },
{ type: 'image/jpeg', ext: 'pjp' },
{ type: 'image/jpeg', ext: 'pjpeg' },
{ type: 'image/png', ext: 'png' },
{ type: 'image/svg+xml', ext: 'svg' },
{ type: 'image/tiff', ext: 'tif' },
{ type: 'image/tiff', ext: 'tiff' },
{ type: 'image/webp', ext: 'webp' },
{ type: 'application/json', ext: 'json' },
{ type: 'application/xml', ext: 'xml' },
{ type: 'application/x-sh', ext: 'sh' },
{ type: 'application/zip', ext: 'zip' },
{ type: 'application/x-rar-compressed', ext: 'rar' },
{ type: 'application/x-tar', ext: 'tar' },
{ type: 'application/x-bzip', ext: 'bz' },
{ type: 'application/x-bzip2', ext: 'bz2' },
{ type: 'application/pdf', ext: 'pdf' },
{ type: 'application/java-archive', ext: 'jar' },
{ type: 'application/msword', ext: 'doc' },
{ type: 'application/vnd.ms-excel', ext: 'xls' },
{ type: 'application/vnd.ms-excel', ext: 'xlsx' },
{ type: 'message/rfc822', ext: 'eml' },
];
var isEmpty = function (obj) {
if (obj === void 0) { obj = {}; }
return Object.keys(obj).length === 0;
};
exports.isEmpty = isEmpty;
var sortByField = function (list, field, dir) {
if (!list || !list.sort) {
return false;
}
var dirX = dir && dir === 'desc' ? -1 : 1;
list.sort(function (a, b) {
var a_val = a[field];
var b_val = b[field];
if (typeof b_val === 'undefined') {
return typeof a_val === 'undefined' ? 0 : 1 * dirX;
}
if (typeof a_val === 'undefined') {
return -1 * dirX;
}
if (a_val < b_val) {
return -1 * dirX;
}
if (a_val > b_val) {
return 1 * dirX;
}
return 0;
});
return true;
};
exports.sortByField = sortByField;
var objectLessAttributes = function (obj, less) {
var ret = Object.assign({}, obj);
if (less) {
if (typeof less === 'string') {
delete ret[less];
}
else {
less.forEach(function (attr) {
delete ret[attr];
});
}
}
return ret;
};
exports.objectLessAttributes = objectLessAttributes;
var filenameToContentType = function (filename, defVal) {
if (defVal === void 0) { defVal = 'application/octet-stream'; }
var name = filename.toLowerCase();
var filtered = MIME_MAP.filter(function (mime) { return name.endsWith('.' + mime.ext); });
return filtered.length > 0 ? filtered[0].type : defVal;
};
exports.filenameToContentType = filenameToContentType;
var isTextFile = function (contentType) {
var type = contentType.toLowerCase();
if (type.startsWith('text/')) {
return true;
}
return ('application/json' === type ||
'application/xml' === type ||
'application/sh' === type);
};
exports.isTextFile = isTextFile;
var generateRandomString = function () {
var result = '';
var chars = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
for (var i = 32; i > 0; i -= 1) {
result += chars[Math.floor(Math.random() * chars.length)];
}
return result;
};
exports.generateRandomString = generateRandomString;
var makeQuerablePromise = function (promise) {
if (promise.isResolved)
return promise;
var isPending = true;
var isRejected = false;
var isFullfilled = false;
var result = promise.then(function (data) {
isFullfilled = true;
isPending = false;
return data;
}, function (e) {
isRejected = true;
isPending = false;
throw e;
});
result.isFullfilled = function () { return isFullfilled; };
result.isPending = function () { return isPending; };
result.isRejected = function () { return isRejected; };
return result;
};
exports.makeQuerablePromise = makeQuerablePromise;
var isWebWorker = function () {
if (typeof self === 'undefined') {
return false;
}
var selfContext = self;
return (typeof selfContext.WorkerGlobalScope !== 'undefined' &&
self instanceof selfContext.WorkerGlobalScope);
};
exports.isWebWorker = isWebWorker;
var browserOrNode = function () {
var isBrowser = typeof window !== 'undefined' && typeof window.document !== 'undefined';
var isNode = typeof process !== 'undefined' &&
process.versions != null &&
process.versions.node != null;
return {
isBrowser: isBrowser,
isNode: isNode,
};
};
exports.browserOrNode = browserOrNode;
/**
* transfer the first letter of the keys to lowercase
* @param {Object} obj - the object need to be transferred
* @param {Array} whiteListForItself - whitelist itself from being transferred
* @param {Array} whiteListForChildren - whitelist its children keys from being transferred
*/
var transferKeyToLowerCase = function (obj, whiteListForItself, whiteListForChildren) {
if (whiteListForItself === void 0) { whiteListForItself = []; }
if (whiteListForChildren === void 0) { whiteListForChildren = []; }
if (!(0, exports.isStrictObject)(obj))
return obj;
var ret = {};
for (var key in obj) {
if (obj.hasOwnProperty(key)) {
var transferedKey = whiteListForItself.includes(key)
? key
: key[0].toLowerCase() + key.slice(1);
ret[transferedKey] = whiteListForChildren.includes(key)
? obj[key]
: (0, exports.transferKeyToLowerCase)(obj[key], whiteListForItself, whiteListForChildren);
}
}
return ret;
};
exports.transferKeyToLowerCase = transferKeyToLowerCase;
/**
* transfer the first letter of the keys to lowercase
* @param {Object} obj - the object need to be transferred
* @param {Array} whiteListForItself - whitelist itself from being transferred
* @param {Array} whiteListForChildren - whitelist its children keys from being transferred
*/
var transferKeyToUpperCase = function (obj, whiteListForItself, whiteListForChildren) {
if (whiteListForItself === void 0) { whiteListForItself = []; }
if (whiteListForChildren === void 0) { whiteListForChildren = []; }
if (!(0, exports.isStrictObject)(obj))
return obj;
var ret = {};
for (var key in obj) {
if (obj.hasOwnProperty(key)) {
var transferredKey = whiteListForItself.includes(key)
? key
: key[0].toUpperCase() + key.slice(1);
ret[transferredKey] = whiteListForChildren.includes(key)
? obj[key]
: (0, exports.transferKeyToUpperCase)(obj[key], whiteListForItself, whiteListForChildren);
}
}
return ret;
};
exports.transferKeyToUpperCase = transferKeyToUpperCase;
/**
* Return true if the object is a strict object
* which means it's not Array, Function, Number, String, Boolean or Null
* @param obj the Object
*/
var isStrictObject = function (obj) {
return (obj instanceof Object &&
!(obj instanceof Array) &&
!(obj instanceof Function) &&
!(obj instanceof Number) &&
!(obj instanceof String) &&
!(obj instanceof Boolean));
};
exports.isStrictObject = isStrictObject;