Files
flipper/desktop/plugins/network/utils.tsx
Pascal Hartig fc9ed65762 prettier 2
Summary:
Quick notes:

- This looks worse than it is. It adds mandatory parentheses to single argument lambdas. Lots of outrage on Twitter about it, personally I'm {emoji:1f937_200d_2642} about it.
- Space before function, e.g. `a = function ()` is now enforced. I like this because both were fine before.
- I added `eslint-config-prettier` to the config because otherwise a ton of rules conflict with eslint itself.

Close https://github.com/facebook/flipper/pull/915

Reviewed By: jknoxville

Differential Revision: D20594929

fbshipit-source-id: ca1c65376b90e009550dd6d1f4e0831d32cbff03
2020-03-24 09:38:11 -07:00

104 lines
2.8 KiB
TypeScript

/**
* Copyright (c) Facebook, Inc. and its affiliates.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*
* @format
*/
import pako from 'pako';
import {Request, Response, Header} from './types';
export function getHeaderValue(headers: Array<Header>, key: string): string {
for (const header of headers) {
if (header.key.toLowerCase() === key.toLowerCase()) {
return header.value;
}
}
return '';
}
export function decodeBody(container: Request | Response): string {
if (!container.data) {
return '';
}
const b64Decoded = atob(container.data);
try {
if (getHeaderValue(container.headers, 'Content-Encoding') === 'gzip') {
// for gzip, use pako to decompress directly to unicode string
return decompress(b64Decoded);
}
// Data is transferred as base64 encoded bytes to support unicode characters,
// we need to decode the bytes here to display the correct unicode characters.
return decodeURIComponent(escape(b64Decoded));
} catch (e) {
console.warn('Discarding malformed body, size: ' + b64Decoded.length);
return '';
}
}
function decompress(body: string): string {
const charArray = body.split('').map((x) => x.charCodeAt(0));
const byteArray = new Uint8Array(charArray);
try {
if (body) {
return pako.inflate(byteArray, {to: 'string'});
} else {
return body;
}
} catch (e) {
// Sometimes Content-Encoding is 'gzip' but the body is already decompressed.
// Assume this is the case when decompression fails.
}
return body;
}
export function convertRequestToCurlCommand(request: Request): string {
let command: string = `curl -v -X ${request.method}`;
command += ` ${escapedString(request.url)}`;
// Add headers
request.headers.forEach((header: Header) => {
const headerStr = `${header.key}: ${header.value}`;
command += ` -H ${escapedString(headerStr)}`;
});
// Add body
const body = decodeBody(request);
if (body) {
command += ` -d ${escapedString(body)}`;
}
return command;
}
function escapeCharacter(x: string) {
const code = x.charCodeAt(0);
return code < 16 ? '\\u0' + code.toString(16) : '\\u' + code.toString(16);
}
const needsEscapingRegex = /[\u0000-\u001f\u007f-\u009f!]/g;
// Escape util function, inspired by Google DevTools. Works only for POSIX
// based systems.
function escapedString(str: string) {
if (needsEscapingRegex.test(str) || str.includes("'")) {
return (
"$'" +
str
.replace(/\\/g, '\\\\')
.replace(/\'/g, "\\'")
.replace(/\n/g, '\\n')
.replace(/\r/g, '\\r')
.replace(needsEscapingRegex, escapeCharacter) +
"'"
);
}
// Simply use singly quoted string.
return "'" + str + "'";
}