filestack-js
Version:
Official JavaScript library for Filestack
232 lines (230 loc) • 24.4 kB
JavaScript
/*
* Copyright (c) 2018 by Filestack.
* Some rights reserved.
*
* 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.
*/
import { __assign, __awaiter, __generator } from "tslib";
import { ExtensionsMap } from './extensions';
import { fileTypeFromBuffer } from 'file-type';
import isutf8 from 'isutf8';
/**
* Resolve cdn url based on handle type
*
* @private
* @param session session object
* @param handle file handle (hash, src://alias, url)
*/
export var resolveCdnUrl = function (session, handle) {
var cdnURL = session.urls.cdnUrl;
if (handle && (handle.indexOf('src:') === 0 || handle.indexOf('http') === 0)) {
if (!session.apikey) {
throw new Error('Api key is required when storage alias is provided');
}
// apikey is required for alias or external sources call
return "".concat(cdnURL, "/").concat(session.apikey);
}
return cdnURL;
};
/**
* Resolve all urls with provided cnames
*
* @private
* @param urls
* @param cname
*/
export var resolveHost = function (urls, cname) {
if (!cname) {
return urls;
}
var hosts = /filestackapi.com|filestackcontent.com/i;
Object.keys(urls).forEach(function (key) {
urls[key] = urls[key].replace(hosts, cname);
});
return urls;
};
/**
* Removes empty options from object
*
* @private
* @param obj
*/
export var removeEmpty = function (obj) {
var newObj = __assign({}, obj);
Object.keys(newObj).forEach(function (k) { return !newObj[k] && typeof newObj[k] !== 'boolean' && delete newObj[k]; });
return newObj;
};
/**
* Returns unique time
*/
var last;
export var uniqueTime = function () {
var time = Date.now();
last = time === last ? time + 1 : time;
return last;
};
/**
* Generates random string with provided length
*
* @param len
*/
export var uniqueId = function (len) {
if (len === void 0) { len = 10; }
return new Array(len).join().replace(/(.|$)/g, function () { return ((Math.random() * 36) | 0).toString(36)[Math.random() < 0.5 ? 'toString' : 'toUpperCase'](); });
};
/**
* Check if input is a svg
*
* @param {Uint8Array | Buffer} file
* @returns {string} - mimetype
*/
export var getMimetype = function (file, name) { return __awaiter(void 0, void 0, void 0, function () {
var type, e_1, excludedMimetypes, mime_1;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
_a.trys.push([0, 2, , 3]);
return [4 /*yield*/, fileTypeFromBuffer(file)];
case 1:
type = _a.sent();
return [3 /*break*/, 3];
case 2:
e_1 = _a.sent();
console.warn('An exception occurred while processing the buffer:', e_1.message);
return [3 /*break*/, 3];
case 3:
excludedMimetypes = ['text/plain', 'application/octet-stream', 'application/x-ms', 'application/x-msi', 'application/zip', 'audio/x-m4a'];
if (type && excludedMimetypes.indexOf(type.mime) === -1) {
return [2 /*return*/, type.mime];
}
if (name && name.indexOf('.') > -1) {
mime_1 = extensionToMime(name);
if (mime_1) {
return [2 /*return*/, mime_1];
}
}
try {
if (isutf8(file)) {
return [2 /*return*/, 'text/plain'];
}
}
catch (e) {
/* istanbul ignore next */
console.warn('Additional mimetype checks (text/plain) are currently not supported for browsers');
}
// this is only fallback, omit it in coverage
/* istanbul ignore next */
// if we cant find types by extensions and we have magic bytes fallback to it
if (type) {
return [2 /*return*/, type.mime];
}
return [2 /*return*/, 'application/octet-stream'];
}
});
}); };
/**
* Change extension to according mimetype using ext=>mimetype map
*
* @param ext - string
* @return string|boolean
*/
export var extensionToMime = function (ext) {
if (!ext || ext.length === 0) {
return;
}
if (ext.split('/').length === 2) {
return ext;
}
if (ext.indexOf('.') > -1) {
ext = ext.split('.').pop();
}
ext = ext.toLocaleLowerCase();
var keys = Object.keys(ExtensionsMap);
var mapLen = keys.length;
for (var i = 0; i < mapLen; i++) {
if (ExtensionsMap[keys[i]].indexOf(ext) > -1) {
return keys[i];
}
}
return;
};
/**
* Sanitize file name
*
* @param name
* @param {bool} options - enable,disable sanitizer, default enabled
* @param {string} options.replacement - replacement for sanitized chars defaults to "-"
* @param {string[]} options.exclude - array with excluded chars default - `['\', '{', '}','|', '%', '`', '"', "'", '~', '[', ']', '#', '|', '^', '<', '>']`
*/
export var sanitizeName = function (name, options) {
if (options === void 0) { options = true; }
if (typeof options === 'boolean' && !options) {
return name;
}
var ext;
var replacement = typeof options !== 'boolean' && options.replacement ? options.replacement : '-';
var exclude = typeof options !== 'boolean' && options.exclude ? options.exclude : ['\\', '{', '}', '|', '%', '`', '"', "'", '~', '[', ']', '#', '|', '^', '<', '>'];
if (!name || name.length === 0) {
return 'undefined';
}
var fileParts = name.split('.');
if (fileParts.length > 1) {
ext = fileParts.pop();
}
return "".concat(fileParts
.join('.')
.split('')
.map(function (char) { return (exclude.indexOf(char) > -1 ? replacement : char); })
.join('')).concat(ext ? '.' + ext : '');
};
/**
* Filter object to given fields
*
* @param toFilter
* @param requiredFields
*/
export var filterObject = function (toFilter, requiredFields) {
if (!requiredFields || requiredFields.length === 0) {
return toFilter;
}
if (Object.keys(toFilter).length === 0) {
return toFilter;
}
return Object.keys(toFilter)
.filter(function (f) { return requiredFields.indexOf(f) > -1; })
.reduce(function (obj, key) {
var _a;
return (__assign(__assign({}, obj), (_a = {}, _a[key] = toFilter[key], _a)));
}, {});
};
/**
* Deep cleanup object from functions
*
* @param obj
*/
export var cleanUpCallbacks = function (obj) {
if (!obj || Object.keys(obj).length === 0) {
return obj;
}
Object.keys(obj).forEach(function (k) {
if (typeof obj[k] === 'function') {
obj[k] = undefined;
}
if (obj[k] === Object(obj[k])) {
obj[k] = cleanUpCallbacks(obj[k]);
}
});
return obj;
};
export * from './index.node';
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* Copyright (c) 2018 by Filestack.\n * Some rights reserved.\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *     http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { Session } from '../client';\nimport { Hosts } from './../../config';\nimport { ExtensionsMap } from './extensions';\nimport { fileTypeFromBuffer } from 'file-type';\nimport isutf8 from 'isutf8';\n\n/**\n * Resolve cdn url based on handle type\n *\n * @private\n * @param session session object\n * @param handle file handle (hash, src://alias, url)\n */\nexport const resolveCdnUrl = (session: Session, handle: string): string => {\n  const cdnURL = session.urls.cdnUrl;\n\n  if (handle && (handle.indexOf('src:') === 0 || handle.indexOf('http') === 0)) {\n    if (!session.apikey) {\n      throw new Error('Api key is required when storage alias is provided');\n    }\n\n    // apikey is required for alias or external sources call\n    return `${cdnURL}/${session.apikey}`;\n  }\n\n  return cdnURL;\n};\n\n/**\n * Resolve all urls with provided cnames\n *\n * @private\n * @param urls\n * @param cname\n */\nexport const resolveHost = (urls: Hosts, cname: string): Hosts => {\n  if (!cname) {\n    return urls;\n  }\n\n  const hosts = /filestackapi.com|filestackcontent.com/i;\n\n  Object.keys(urls).forEach(key => {\n    urls[key] = urls[key].replace(hosts, cname);\n  });\n\n  return urls;\n};\n\n/**\n * Removes empty options from object\n *\n * @private\n * @param obj\n */\nexport const removeEmpty = (obj: any) => {\n  const newObj = { ...obj };\n  Object.keys(newObj).forEach(k => !newObj[k] && typeof newObj[k] !== 'boolean' && delete newObj[k]);\n  return newObj;\n};\n\n/**\n * Returns unique time\n */\nlet last;\nexport const uniqueTime = () => {\n  const time = Date.now();\n  last = time === last ? time + 1 : time;\n  return last;\n};\n\n/**\n * Generates random string with provided length\n *\n * @param len\n */\nexport const uniqueId = (len: number = 10): string => {\n  return new Array(len).join().replace(/(.|$)/g, () => ((Math.random() * 36) | 0).toString(36)[Math.random() < 0.5 ? 'toString' : 'toUpperCase']());\n};\n\n/**\n * Check if input is a svg\n *\n * @param {Uint8Array | Buffer} file\n * @returns {string} - mimetype\n */\nexport const getMimetype = async (file: Uint8Array | Buffer, name?: string): Promise<string> => {\n  let type;\n\n  try {\n    type = await fileTypeFromBuffer(file as Uint8Array);\n  } catch (e) {\n    console.warn('An exception occurred while processing the buffer:', e.message);\n  }\n\n  const excludedMimetypes = ['text/plain', 'application/octet-stream', 'application/x-ms', 'application/x-msi', 'application/zip', 'audio/x-m4a'];\n\n  if (type && excludedMimetypes.indexOf(type.mime) === -1) {\n    return type.mime;\n  }\n\n  if (name && name.indexOf('.') > -1) {\n    const mime = extensionToMime(name);\n\n    if (mime) {\n      return mime;\n    }\n  }\n\n  try {\n    if (isutf8(file)) {\n      return 'text/plain';\n    }\n  } catch (e) {\n    /* istanbul ignore next */\n    console.warn('Additional mimetype checks (text/plain) are currently not supported for browsers');\n  }\n  // this is only fallback, omit it in coverage\n  /* istanbul ignore next */\n\n  // if we cant find types by extensions and we have magic bytes fallback to it\n  if (type) {\n    return type.mime;\n  }\n\n  return 'application/octet-stream';\n};\n\n/**\n * Change extension to according mimetype using ext=>mimetype map\n *\n * @param ext - string\n * @return string|boolean\n */\nexport const extensionToMime = (ext: string) => {\n  if (!ext || ext.length === 0) {\n    return;\n  }\n\n  if (ext.split('/').length === 2) {\n    return ext;\n  }\n\n  if (ext.indexOf('.') > -1) {\n    ext = ext.split('.').pop();\n  }\n\n  ext = ext.toLocaleLowerCase();\n\n  const keys = Object.keys(ExtensionsMap);\n  const mapLen = keys.length;\n\n  for (let i = 0; i < mapLen; i++) {\n    if (ExtensionsMap[keys[i]].indexOf(ext) > -1) {\n      return keys[i];\n    }\n  }\n\n  return;\n};\n\n/**\n * Sanitizer Options\n */\nexport type SanitizeOptions =\n  | boolean\n  | {\n      exclude?: string[];\n      replacement?: string;\n    };\n\n/**\n * Sanitize file name\n *\n * @param name\n * @param {bool} options  - enable,disable sanitizer, default enabled\n * @param {string} options.replacement - replacement for sanitized chars defaults to \"-\"\n * @param {string[]} options.exclude - array with excluded chars default - `['\\', '{', '}','|', '%', '`', '\"', \"'\", '~', '[', ']', '#', '|', '^', '<', '>']`\n */\nexport const sanitizeName = (name: string, options: SanitizeOptions = true): string => {\n  if (typeof options === 'boolean' && !options) {\n    return name;\n  }\n\n  let ext;\n\n  const replacement = typeof options !== 'boolean' && options.replacement ? options.replacement : '-';\n  const exclude = typeof options !== 'boolean' && options.exclude ? options.exclude : ['\\\\', '{', '}', '|', '%', '`', '\"', \"'\", '~', '[', ']', '#', '|', '^', '<', '>'];\n\n  if (!name || name.length === 0) {\n    return 'undefined';\n  }\n\n  const fileParts = name.split('.');\n\n  if (fileParts.length > 1) {\n    ext = fileParts.pop();\n  }\n\n  return `${fileParts\n    .join('.')\n    .split('')\n    .map(char => (exclude.indexOf(char) > -1 ? replacement : char))\n    .join('')}${ext ? '.' + ext : ''}`;\n};\n\n/**\n * Filter object to given fields\n *\n * @param toFilter\n * @param requiredFields\n */\nexport const filterObject = (toFilter, requiredFields: string[]) => {\n  if (!requiredFields || requiredFields.length === 0) {\n    return toFilter;\n  }\n\n  if (Object.keys(toFilter).length === 0) {\n    return toFilter;\n  }\n\n  return Object.keys(toFilter)\n    .filter(f => requiredFields.indexOf(f) > -1)\n    .reduce((obj, key) => ({ ...obj, [key]: toFilter[key] }), {});\n};\n\n/**\n * Deep cleanup object from functions\n *\n * @param obj\n */\nexport const cleanUpCallbacks = (obj: any) => {\n  if (!obj || Object.keys(obj).length === 0) {\n    return obj;\n  }\n\n  Object.keys(obj).forEach(k => {\n    if (typeof obj[k] === 'function') {\n      obj[k] = undefined;\n    }\n\n    if (obj[k] === Object(obj[k])) {\n      obj[k] = cleanUpCallbacks(obj[k]);\n    }\n  });\n\n  return obj;\n};\n\nexport * from './index.node';\n"]}