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clientHelper.ts
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clientHelper.ts
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/**
* Copyright 2017 Google Inc. All rights reserved.
* Modifications copyright (c) Microsoft Corporation.
*
* 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 * as types from './types';
import * as fs from 'fs';
import * as util from 'util';
import { isString, isRegExp } from '../utils/utils';
const deprecatedHits = new Set();
export function deprecate(methodName: string, message: string) {
if (deprecatedHits.has(methodName))
return;
deprecatedHits.add(methodName);
console.warn(message);
}
export function envObjectToArray(env: types.Env): { name: string, value: string }[] {
const result: { name: string, value: string }[] = [];
for (const name in env) {
if (!Object.is(env[name], undefined))
result.push({ name, value: String(env[name]) });
}
return result;
}
export async function evaluationScript(fun: Function | string | { path?: string, content?: string }, arg?: any, addSourceUrl: boolean = true): Promise<string> {
if (typeof fun === 'function') {
const source = fun.toString();
const argString = Object.is(arg, undefined) ? 'undefined' : JSON.stringify(arg);
return `(${source})(${argString})`;
}
if (arg !== undefined)
throw new Error('Cannot evaluate a string with arguments');
if (isString(fun))
return fun;
if (fun.content !== undefined)
return fun.content;
if (fun.path !== undefined) {
let source = await util.promisify(fs.readFile)(fun.path, 'utf8');
if (addSourceUrl)
source += '//# sourceURL=' + fun.path.replace(/\n/g, '');
return source;
}
throw new Error('Either path or content property must be present');
}
export function parsedURL(url: string): URL | null {
try {
return new URL(url);
} catch (e) {
return null;
}
}
export function urlMatches(urlString: string, match: types.URLMatch | undefined): boolean {
if (match === undefined || match === '')
return true;
if (isString(match))
match = globToRegex(match);
if (isRegExp(match))
return match.test(urlString);
if (typeof match === 'string' && match === urlString)
return true;
const url = parsedURL(urlString);
if (!url)
return false;
if (typeof match === 'string')
return url.pathname === match;
if (typeof match !== 'function')
throw new Error('url parameter should be string, RegExp or function');
return match(url);
}
const escapeGlobChars = new Set(['/', '$', '^', '+', '.', '(', ')', '=', '!', '|']);
export function globToRegex(glob: string): RegExp {
const tokens = ['^'];
let inGroup;
for (let i = 0; i < glob.length; ++i) {
const c = glob[i];
if (escapeGlobChars.has(c)) {
tokens.push('\\' + c);
continue;
}
if (c === '*') {
const beforeDeep = glob[i - 1];
let starCount = 1;
while (glob[i + 1] === '*') {
starCount++;
i++;
}
const afterDeep = glob[i + 1];
const isDeep = starCount > 1 &&
(beforeDeep === '/' || beforeDeep === undefined) &&
(afterDeep === '/' || afterDeep === undefined);
if (isDeep) {
tokens.push('((?:[^/]*(?:\/|$))*)');
i++;
} else {
tokens.push('([^/]*)');
}
continue;
}
switch (c) {
case '?':
tokens.push('.');
break;
case '{':
inGroup = true;
tokens.push('(');
break;
case '}':
inGroup = false;
tokens.push(')');
break;
case ',':
if (inGroup) {
tokens.push('|');
break;
}
tokens.push('\\' + c);
break;
default:
tokens.push(c);
}
}
tokens.push('$');
return new RegExp(tokens.join(''));
}