diff options
Diffstat (limited to 'backend/node_modules/cookie/README.md')
| -rw-r--r-- | backend/node_modules/cookie/README.md | 317 |
1 files changed, 317 insertions, 0 deletions
diff --git a/backend/node_modules/cookie/README.md b/backend/node_modules/cookie/README.md new file mode 100644 index 0000000..71fdac1 --- /dev/null +++ b/backend/node_modules/cookie/README.md @@ -0,0 +1,317 @@ +# cookie + +[![NPM Version][npm-version-image]][npm-url] +[![NPM Downloads][npm-downloads-image]][npm-url] +[![Node.js Version][node-image]][node-url] +[![Build Status][ci-image]][ci-url] +[![Coverage Status][coveralls-image]][coveralls-url] + +Basic HTTP cookie parser and serializer for HTTP servers. + +## Installation + +This is a [Node.js](https://nodejs.org/en/) module available through the +[npm registry](https://www.npmjs.com/). Installation is done using the +[`npm install` command](https://docs.npmjs.com/getting-started/installing-npm-packages-locally): + +```sh +$ npm install cookie +``` + +## API + +```js +var cookie = require('cookie'); +``` + +### cookie.parse(str, options) + +Parse an HTTP `Cookie` header string and returning an object of all cookie name-value pairs. +The `str` argument is the string representing a `Cookie` header value and `options` is an +optional object containing additional parsing options. + +```js +var cookies = cookie.parse('foo=bar; equation=E%3Dmc%5E2'); +// { foo: 'bar', equation: 'E=mc^2' } +``` + +#### Options + +`cookie.parse` accepts these properties in the options object. + +##### decode + +Specifies a function that will be used to decode a cookie's value. Since the value of a cookie +has a limited character set (and must be a simple string), this function can be used to decode +a previously-encoded cookie value into a JavaScript string or other object. + +The default function is the global `decodeURIComponent`, which will decode any URL-encoded +sequences into their byte representations. + +**note** if an error is thrown from this function, the original, non-decoded cookie value will +be returned as the cookie's value. + +### cookie.serialize(name, value, options) + +Serialize a cookie name-value pair into a `Set-Cookie` header string. The `name` argument is the +name for the cookie, the `value` argument is the value to set the cookie to, and the `options` +argument is an optional object containing additional serialization options. + +```js +var setCookie = cookie.serialize('foo', 'bar'); +// foo=bar +``` + +#### Options + +`cookie.serialize` accepts these properties in the options object. + +##### domain + +Specifies the value for the [`Domain` `Set-Cookie` attribute][rfc-6265-5.2.3]. By default, no +domain is set, and most clients will consider the cookie to apply to only the current domain. + +##### encode + +Specifies a function that will be used to encode a cookie's value. Since value of a cookie +has a limited character set (and must be a simple string), this function can be used to encode +a value into a string suited for a cookie's value. + +The default function is the global `encodeURIComponent`, which will encode a JavaScript string +into UTF-8 byte sequences and then URL-encode any that fall outside of the cookie range. + +##### expires + +Specifies the `Date` object to be the value for the [`Expires` `Set-Cookie` attribute][rfc-6265-5.2.1]. +By default, no expiration is set, and most clients will consider this a "non-persistent cookie" and +will delete it on a condition like exiting a web browser application. + +**note** the [cookie storage model specification][rfc-6265-5.3] states that if both `expires` and +`maxAge` are set, then `maxAge` takes precedence, but it is possible not all clients by obey this, +so if both are set, they should point to the same date and time. + +##### httpOnly + +Specifies the `boolean` value for the [`HttpOnly` `Set-Cookie` attribute][rfc-6265-5.2.6]. When truthy, +the `HttpOnly` attribute is set, otherwise it is not. By default, the `HttpOnly` attribute is not set. + +**note** be careful when setting this to `true`, as compliant clients will not allow client-side +JavaScript to see the cookie in `document.cookie`. + +##### maxAge + +Specifies the `number` (in seconds) to be the value for the [`Max-Age` `Set-Cookie` attribute][rfc-6265-5.2.2]. +The given number will be converted to an integer by rounding down. By default, no maximum age is set. + +**note** the [cookie storage model specification][rfc-6265-5.3] states that if both `expires` and +`maxAge` are set, then `maxAge` takes precedence, but it is possible not all clients by obey this, +so if both are set, they should point to the same date and time. + +##### partitioned + +Specifies the `boolean` value for the [`Partitioned` `Set-Cookie`](rfc-cutler-httpbis-partitioned-cookies) +attribute. When truthy, the `Partitioned` attribute is set, otherwise it is not. By default, the +`Partitioned` attribute is not set. + +**note** This is an attribute that has not yet been fully standardized, and may change in the future. +This also means many clients may ignore this attribute until they understand it. + +More information about can be found in [the proposal](https://github.com/privacycg/CHIPS). + +##### path + +Specifies the value for the [`Path` `Set-Cookie` attribute][rfc-6265-5.2.4]. By default, the path +is considered the ["default path"][rfc-6265-5.1.4]. + +##### priority + +Specifies the `string` to be the value for the [`Priority` `Set-Cookie` attribute][rfc-west-cookie-priority-00-4.1]. + + - `'low'` will set the `Priority` attribute to `Low`. + - `'medium'` will set the `Priority` attribute to `Medium`, the default priority when not set. + - `'high'` will set the `Priority` attribute to `High`. + +More information about the different priority levels can be found in +[the specification][rfc-west-cookie-priority-00-4.1]. + +**note** This is an attribute that has not yet been fully standardized, and may change in the future. +This also means many clients may ignore this attribute until they understand it. + +##### sameSite + +Specifies the `boolean` or `string` to be the value for the [`SameSite` `Set-Cookie` attribute][rfc-6265bis-09-5.4.7]. + + - `true` will set the `SameSite` attribute to `Strict` for strict same site enforcement. + - `false` will not set the `SameSite` attribute. + - `'lax'` will set the `SameSite` attribute to `Lax` for lax same site enforcement. + - `'none'` will set the `SameSite` attribute to `None` for an explicit cross-site cookie. + - `'strict'` will set the `SameSite` attribute to `Strict` for strict same site enforcement. + +More information about the different enforcement levels can be found in +[the specification][rfc-6265bis-09-5.4.7]. + +**note** This is an attribute that has not yet been fully standardized, and may change in the future. +This also means many clients may ignore this attribute until they understand it. + +##### secure + +Specifies the `boolean` value for the [`Secure` `Set-Cookie` attribute][rfc-6265-5.2.5]. When truthy, +the `Secure` attribute is set, otherwise it is not. By default, the `Secure` attribute is not set. + +**note** be careful when setting this to `true`, as compliant clients will not send the cookie back to +the server in the future if the browser does not have an HTTPS connection. + +## Example + +The following example uses this module in conjunction with the Node.js core HTTP server +to prompt a user for their name and display it back on future visits. + +```js +var cookie = require('cookie'); +var escapeHtml = require('escape-html'); +var http = require('http'); +var url = require('url'); + +function onRequest(req, res) { + // Parse the query string + var query = url.parse(req.url, true, true).query; + + if (query && query.name) { + // Set a new cookie with the name + res.setHeader('Set-Cookie', cookie.serialize('name', String(query.name), { + httpOnly: true, + maxAge: 60 * 60 * 24 * 7 // 1 week + })); + + // Redirect back after setting cookie + res.statusCode = 302; + res.setHeader('Location', req.headers.referer || '/'); + res.end(); + return; + } + + // Parse the cookies on the request + var cookies = cookie.parse(req.headers.cookie || ''); + + // Get the visitor name set in the cookie + var name = cookies.name; + + res.setHeader('Content-Type', 'text/html; charset=UTF-8'); + + if (name) { + res.write('<p>Welcome back, <b>' + escapeHtml(name) + '</b>!</p>'); + } else { + res.write('<p>Hello, new visitor!</p>'); + } + + res.write('<form method="GET">'); + res.write('<input placeholder="enter your name" name="name"> <input type="submit" value="Set Name">'); + res.end('</form>'); +} + +http.createServer(onRequest).listen(3000); +``` + +## Testing + +```sh +$ npm test +``` + +## Benchmark + +``` +$ npm run bench + +> cookie@0.5.0 bench +> node benchmark/index.js + + node@18.18.2 + acorn@8.10.0 + ada@2.6.0 + ares@1.19.1 + brotli@1.0.9 + cldr@43.1 + icu@73.2 + llhttp@6.0.11 + modules@108 + napi@9 + nghttp2@1.57.0 + nghttp3@0.7.0 + ngtcp2@0.8.1 + openssl@3.0.10+quic + simdutf@3.2.14 + tz@2023c + undici@5.26.3 + unicode@15.0 + uv@1.44.2 + uvwasi@0.0.18 + v8@10.2.154.26-node.26 + zlib@1.2.13.1-motley + +> node benchmark/parse-top.js + + cookie.parse - top sites + + 14 tests completed. + + parse accounts.google.com x 2,588,913 ops/sec ±0.74% (186 runs sampled) + parse apple.com x 2,370,002 ops/sec ±0.69% (186 runs sampled) + parse cloudflare.com x 2,213,102 ops/sec ±0.88% (188 runs sampled) + parse docs.google.com x 2,194,157 ops/sec ±1.03% (184 runs sampled) + parse drive.google.com x 2,265,084 ops/sec ±0.79% (187 runs sampled) + parse en.wikipedia.org x 457,099 ops/sec ±0.81% (186 runs sampled) + parse linkedin.com x 504,407 ops/sec ±0.89% (186 runs sampled) + parse maps.google.com x 1,230,959 ops/sec ±0.98% (186 runs sampled) + parse microsoft.com x 926,294 ops/sec ±0.88% (184 runs sampled) + parse play.google.com x 2,311,338 ops/sec ±0.83% (185 runs sampled) + parse support.google.com x 1,508,850 ops/sec ±0.86% (186 runs sampled) + parse www.google.com x 1,022,582 ops/sec ±1.32% (182 runs sampled) + parse youtu.be x 332,136 ops/sec ±1.02% (185 runs sampled) + parse youtube.com x 323,833 ops/sec ±0.77% (183 runs sampled) + +> node benchmark/parse.js + + cookie.parse - generic + + 6 tests completed. + + simple x 3,214,032 ops/sec ±1.61% (183 runs sampled) + decode x 587,237 ops/sec ±1.16% (187 runs sampled) + unquote x 2,954,618 ops/sec ±1.35% (183 runs sampled) + duplicates x 857,008 ops/sec ±0.89% (187 runs sampled) + 10 cookies x 292,133 ops/sec ±0.89% (187 runs sampled) + 100 cookies x 22,610 ops/sec ±0.68% (187 runs sampled) +``` + +## References + +- [RFC 6265: HTTP State Management Mechanism][rfc-6265] +- [Same-site Cookies][rfc-6265bis-09-5.4.7] + +[rfc-cutler-httpbis-partitioned-cookies]: https://tools.ietf.org/html/draft-cutler-httpbis-partitioned-cookies/ +[rfc-west-cookie-priority-00-4.1]: https://tools.ietf.org/html/draft-west-cookie-priority-00#section-4.1 +[rfc-6265bis-09-5.4.7]: https://tools.ietf.org/html/draft-ietf-httpbis-rfc6265bis-09#section-5.4.7 +[rfc-6265]: https://tools.ietf.org/html/rfc6265 +[rfc-6265-5.1.4]: https://tools.ietf.org/html/rfc6265#section-5.1.4 +[rfc-6265-5.2.1]: https://tools.ietf.org/html/rfc6265#section-5.2.1 +[rfc-6265-5.2.2]: https://tools.ietf.org/html/rfc6265#section-5.2.2 +[rfc-6265-5.2.3]: https://tools.ietf.org/html/rfc6265#section-5.2.3 +[rfc-6265-5.2.4]: https://tools.ietf.org/html/rfc6265#section-5.2.4 +[rfc-6265-5.2.5]: https://tools.ietf.org/html/rfc6265#section-5.2.5 +[rfc-6265-5.2.6]: https://tools.ietf.org/html/rfc6265#section-5.2.6 +[rfc-6265-5.3]: https://tools.ietf.org/html/rfc6265#section-5.3 + +## License + +[MIT](LICENSE) + +[ci-image]: https://badgen.net/github/checks/jshttp/cookie/master?label=ci +[ci-url]: https://github.com/jshttp/cookie/actions/workflows/ci.yml +[coveralls-image]: https://badgen.net/coveralls/c/github/jshttp/cookie/master +[coveralls-url]: https://coveralls.io/r/jshttp/cookie?branch=master +[node-image]: https://badgen.net/npm/node/cookie +[node-url]: https://nodejs.org/en/download +[npm-downloads-image]: https://badgen.net/npm/dm/cookie +[npm-url]: https://npmjs.org/package/cookie +[npm-version-image]: https://badgen.net/npm/v/cookie |