From 67fdec20726e48ba3a934cb25bb30d47ec4a4f29 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Yaroslav=20De=20La=20Pe=C3=B1a=20Smirnov?= Date: Wed, 29 Nov 2017 11:44:34 +0300 Subject: Initial commit, version 0.5.3 --- node_modules/fresh/HISTORY.md | 70 ++++++++++++++++++++ node_modules/fresh/LICENSE | 23 +++++++ node_modules/fresh/README.md | 119 ++++++++++++++++++++++++++++++++++ node_modules/fresh/index.js | 137 ++++++++++++++++++++++++++++++++++++++++ node_modules/fresh/package.json | 126 ++++++++++++++++++++++++++++++++++++ 5 files changed, 475 insertions(+) create mode 100644 node_modules/fresh/HISTORY.md create mode 100644 node_modules/fresh/LICENSE create mode 100644 node_modules/fresh/README.md create mode 100644 node_modules/fresh/index.js create mode 100644 node_modules/fresh/package.json (limited to 'node_modules/fresh') diff --git a/node_modules/fresh/HISTORY.md b/node_modules/fresh/HISTORY.md new file mode 100644 index 0000000..4586996 --- /dev/null +++ b/node_modules/fresh/HISTORY.md @@ -0,0 +1,70 @@ +0.5.2 / 2017-09-13 +================== + + * Fix regression matching multiple ETags in `If-None-Match` + * perf: improve `If-None-Match` token parsing + +0.5.1 / 2017-09-11 +================== + + * Fix handling of modified headers with invalid dates + * perf: improve ETag match loop + +0.5.0 / 2017-02-21 +================== + + * Fix incorrect result when `If-None-Match` has both `*` and ETags + * Fix weak `ETag` matching to match spec + * perf: delay reading header values until needed + * perf: skip checking modified time if ETag check failed + * perf: skip parsing `If-None-Match` when no `ETag` header + * perf: use `Date.parse` instead of `new Date` + +0.4.0 / 2017-02-05 +================== + + * Fix false detection of `no-cache` request directive + * perf: enable strict mode + * perf: hoist regular expressions + * perf: remove duplicate conditional + * perf: remove unnecessary boolean coercions + +0.3.0 / 2015-05-12 +================== + + * Add weak `ETag` matching support + +0.2.4 / 2014-09-07 +================== + + * Support Node.js 0.6 + +0.2.3 / 2014-09-07 +================== + + * Move repository to jshttp + +0.2.2 / 2014-02-19 +================== + + * Revert "Fix for blank page on Safari reload" + +0.2.1 / 2014-01-29 +================== + + * Fix for blank page on Safari reload + +0.2.0 / 2013-08-11 +================== + + * Return stale for `Cache-Control: no-cache` + +0.1.0 / 2012-06-15 +================== + + * Add `If-None-Match: *` support + +0.0.1 / 2012-06-10 +================== + + * Initial release diff --git a/node_modules/fresh/LICENSE b/node_modules/fresh/LICENSE new file mode 100644 index 0000000..1434ade --- /dev/null +++ b/node_modules/fresh/LICENSE @@ -0,0 +1,23 @@ +(The MIT License) + +Copyright (c) 2012 TJ Holowaychuk +Copyright (c) 2016-2017 Douglas Christopher Wilson + +Permission is hereby granted, free of charge, to any person obtaining +a copy of this software and associated documentation files (the +'Software'), to deal in the Software without restriction, including +without limitation the rights to use, copy, modify, merge, publish, +distribute, sublicense, and/or sell copies of the Software, and to +permit persons to whom the Software is furnished to do so, subject to +the following conditions: + +The above copyright notice and this permission notice shall be +included in all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, +EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. +IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY +CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, +TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE +SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. diff --git a/node_modules/fresh/README.md b/node_modules/fresh/README.md new file mode 100644 index 0000000..1c1c680 --- /dev/null +++ b/node_modules/fresh/README.md @@ -0,0 +1,119 @@ +# fresh + +[![NPM Version][npm-image]][npm-url] +[![NPM Downloads][downloads-image]][downloads-url] +[![Node.js Version][node-version-image]][node-version-url] +[![Build Status][travis-image]][travis-url] +[![Test Coverage][coveralls-image]][coveralls-url] + +HTTP response freshness testing + +## 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): + +``` +$ npm install fresh +``` + +## API + + + +```js +var fresh = require('fresh') +``` + +### fresh(reqHeaders, resHeaders) + +Check freshness of the response using request and response headers. + +When the response is still "fresh" in the client's cache `true` is +returned, otherwise `false` is returned to indicate that the client +cache is now stale and the full response should be sent. + +When a client sends the `Cache-Control: no-cache` request header to +indicate an end-to-end reload request, this module will return `false` +to make handling these requests transparent. + +## Known Issues + +This module is designed to only follow the HTTP specifications, not +to work-around all kinda of client bugs (especially since this module +typically does not recieve enough information to understand what the +client actually is). + +There is a known issue that in certain versions of Safari, Safari +will incorrectly make a request that allows this module to validate +freshness of the resource even when Safari does not have a +representation of the resource in the cache. The module +[jumanji](https://www.npmjs.com/package/jumanji) can be used in +an Express application to work-around this issue and also provides +links to further reading on this Safari bug. + +## Example + +### API usage + + + +```js +var reqHeaders = { 'if-none-match': '"foo"' } +var resHeaders = { 'etag': '"bar"' } +fresh(reqHeaders, resHeaders) +// => false + +var reqHeaders = { 'if-none-match': '"foo"' } +var resHeaders = { 'etag': '"foo"' } +fresh(reqHeaders, resHeaders) +// => true +``` + +### Using with Node.js http server + +```js +var fresh = require('fresh') +var http = require('http') + +var server = http.createServer(function (req, res) { + // perform server logic + // ... including adding ETag / Last-Modified response headers + + if (isFresh(req, res)) { + // client has a fresh copy of resource + res.statusCode = 304 + res.end() + return + } + + // send the resource + res.statusCode = 200 + res.end('hello, world!') +}) + +function isFresh (req, res) { + return fresh(req.headers, { + 'etag': res.getHeader('ETag'), + 'last-modified': res.getHeader('Last-Modified') + }) +} + +server.listen(3000) +``` + +## License + +[MIT](LICENSE) + +[npm-image]: https://img.shields.io/npm/v/fresh.svg +[npm-url]: https://npmjs.org/package/fresh +[node-version-image]: https://img.shields.io/node/v/fresh.svg +[node-version-url]: https://nodejs.org/en/ +[travis-image]: https://img.shields.io/travis/jshttp/fresh/master.svg +[travis-url]: https://travis-ci.org/jshttp/fresh +[coveralls-image]: https://img.shields.io/coveralls/jshttp/fresh/master.svg +[coveralls-url]: https://coveralls.io/r/jshttp/fresh?branch=master +[downloads-image]: https://img.shields.io/npm/dm/fresh.svg +[downloads-url]: https://npmjs.org/package/fresh diff --git a/node_modules/fresh/index.js b/node_modules/fresh/index.js new file mode 100644 index 0000000..d154f5a --- /dev/null +++ b/node_modules/fresh/index.js @@ -0,0 +1,137 @@ +/*! + * fresh + * Copyright(c) 2012 TJ Holowaychuk + * Copyright(c) 2016-2017 Douglas Christopher Wilson + * MIT Licensed + */ + +'use strict' + +/** + * RegExp to check for no-cache token in Cache-Control. + * @private + */ + +var CACHE_CONTROL_NO_CACHE_REGEXP = /(?:^|,)\s*?no-cache\s*?(?:,|$)/ + +/** + * Module exports. + * @public + */ + +module.exports = fresh + +/** + * Check freshness of the response using request and response headers. + * + * @param {Object} reqHeaders + * @param {Object} resHeaders + * @return {Boolean} + * @public + */ + +function fresh (reqHeaders, resHeaders) { + // fields + var modifiedSince = reqHeaders['if-modified-since'] + var noneMatch = reqHeaders['if-none-match'] + + // unconditional request + if (!modifiedSince && !noneMatch) { + return false + } + + // Always return stale when Cache-Control: no-cache + // to support end-to-end reload requests + // https://tools.ietf.org/html/rfc2616#section-14.9.4 + var cacheControl = reqHeaders['cache-control'] + if (cacheControl && CACHE_CONTROL_NO_CACHE_REGEXP.test(cacheControl)) { + return false + } + + // if-none-match + if (noneMatch && noneMatch !== '*') { + var etag = resHeaders['etag'] + + if (!etag) { + return false + } + + var etagStale = true + var matches = parseTokenList(noneMatch) + for (var i = 0; i < matches.length; i++) { + var match = matches[i] + if (match === etag || match === 'W/' + etag || 'W/' + match === etag) { + etagStale = false + break + } + } + + if (etagStale) { + return false + } + } + + // if-modified-since + if (modifiedSince) { + var lastModified = resHeaders['last-modified'] + var modifiedStale = !lastModified || !(parseHttpDate(lastModified) <= parseHttpDate(modifiedSince)) + + if (modifiedStale) { + return false + } + } + + return true +} + +/** + * Parse an HTTP Date into a number. + * + * @param {string} date + * @private + */ + +function parseHttpDate (date) { + var timestamp = date && Date.parse(date) + + // istanbul ignore next: guard against date.js Date.parse patching + return typeof timestamp === 'number' + ? timestamp + : NaN +} + +/** + * Parse a HTTP token list. + * + * @param {string} str + * @private + */ + +function parseTokenList (str) { + var end = 0 + var list = [] + var start = 0 + + // gather tokens + for (var i = 0, len = str.length; i < len; i++) { + switch (str.charCodeAt(i)) { + case 0x20: /* */ + if (start === end) { + start = end = i + 1 + } + break + case 0x2c: /* , */ + list.push(str.substring(start, end)) + start = end = i + 1 + break + default: + end = i + 1 + break + } + } + + // final token + list.push(str.substring(start, end)) + + return list +} diff --git a/node_modules/fresh/package.json b/node_modules/fresh/package.json new file mode 100644 index 0000000..750d001 --- /dev/null +++ b/node_modules/fresh/package.json @@ -0,0 +1,126 @@ +{ + "_args": [ + [ + { + "raw": "fresh@0.5.2", + "scope": null, + "escapedName": "fresh", + "name": "fresh", + "rawSpec": "0.5.2", + "spec": "0.5.2", + "type": "version" + }, + "/mnt/e/Yaroslav/Documents/Webs/nodejs/checkers/node_modules/express" + ] + ], + "_from": "fresh@0.5.2", + "_id": "fresh@0.5.2", + "_inCache": true, + "_location": "/fresh", + "_nodeVersion": "6.11.1", + "_npmOperationalInternal": { + "host": "s3://npm-registry-packages", + "tmp": "tmp/fresh-0.5.2.tgz_1505365391149_0.7952043106779456" + }, + "_npmUser": { + "name": "dougwilson", + "email": "doug@somethingdoug.com" + }, + "_npmVersion": "3.10.10", + "_phantomChildren": {}, + "_requested": { + "raw": "fresh@0.5.2", + "scope": null, + "escapedName": "fresh", + "name": "fresh", + "rawSpec": "0.5.2", + "spec": "0.5.2", + "type": "version" + }, + "_requiredBy": [ + "/express", + "/send" + ], + "_resolved": "https://registry.npmjs.org/fresh/-/fresh-0.5.2.tgz", + "_shasum": "3d8cadd90d976569fa835ab1f8e4b23a105605a7", + "_shrinkwrap": null, + "_spec": "fresh@0.5.2", + "_where": "/mnt/e/Yaroslav/Documents/Webs/nodejs/checkers/node_modules/express", + "author": { + "name": "TJ Holowaychuk", + "email": "tj@vision-media.ca", + "url": "http://tjholowaychuk.com" + }, + "bugs": { + "url": "https://github.com/jshttp/fresh/issues" + }, + "contributors": [ + { + "name": "Douglas Christopher Wilson", + "email": "doug@somethingdoug.com" + }, + { + "name": "Jonathan Ong", + "email": "me@jongleberry.com", + "url": "http://jongleberry.com" + } + ], + "dependencies": {}, + "description": "HTTP response freshness testing", + "devDependencies": { + "beautify-benchmark": "0.2.4", + "benchmark": "2.1.4", + "eslint": "3.19.0", + "eslint-config-standard": "10.2.1", + "eslint-plugin-import": "2.7.0", + "eslint-plugin-markdown": "1.0.0-beta.6", + "eslint-plugin-node": "5.1.1", + "eslint-plugin-promise": "3.5.0", + "eslint-plugin-standard": "3.0.1", + "istanbul": "0.4.5", + "mocha": "1.21.5" + }, + "directories": {}, + "dist": { + "shasum": "3d8cadd90d976569fa835ab1f8e4b23a105605a7", + "tarball": "https://registry.npmjs.org/fresh/-/fresh-0.5.2.tgz" + }, + "engines": { + "node": ">= 0.6" + }, + "files": [ + "HISTORY.md", + "LICENSE", + "index.js" + ], + "gitHead": "02df6303ff260b6b7da0b479f3e42222e8157b47", + "homepage": "https://github.com/jshttp/fresh#readme", + "keywords": [ + "fresh", + "http", + "conditional", + "cache" + ], + "license": "MIT", + "maintainers": [ + { + "name": "dougwilson", + "email": "doug@somethingdoug.com" + } + ], + "name": "fresh", + "optionalDependencies": {}, + "readme": "ERROR: No README data found!", + "repository": { + "type": "git", + "url": "git+https://github.com/jshttp/fresh.git" + }, + "scripts": { + "bench": "node benchmark/index.js", + "lint": "eslint --plugin markdown --ext js,md .", + "test": "mocha --reporter spec --bail --check-leaks test/", + "test-cov": "istanbul cover node_modules/mocha/bin/_mocha -- --reporter dot --check-leaks test/", + "test-travis": "istanbul cover node_modules/mocha/bin/_mocha --report lcovonly -- --reporter spec --check-leaks test/" + }, + "version": "0.5.2" +} -- cgit v1.2.3