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Original file line number | Diff line number | Diff line change |
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@@ -1,83 +1,87 @@ | ||
'use strict' | ||
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const fastDecode = require('fast-decode-uri-component') | ||
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// It must spot all the chars where decodeURIComponent(x) !== decodeURI(x) | ||
// The chars are: # $ & + , / : ; = ? @ | ||
const uriComponentsCharMap = new Array(53).fill(0x00) | ||
uriComponentsCharMap[50] = new Array(103).fill(0x00) | ||
uriComponentsCharMap[50][51] = true // # '%23' | ||
uriComponentsCharMap[50][52] = true // $ '%24' | ||
uriComponentsCharMap[50][54] = true // & '%26' | ||
uriComponentsCharMap[50][66] = true // + '%2B' | ||
uriComponentsCharMap[50][98] = true // + '%2b' | ||
uriComponentsCharMap[50][67] = true // , '%2C' | ||
uriComponentsCharMap[50][99] = true // , '%2c' | ||
uriComponentsCharMap[50][70] = true // / '%2F' | ||
uriComponentsCharMap[50][102] = true // / '%2f' | ||
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uriComponentsCharMap[51] = new Array(103).fill(0x00) | ||
uriComponentsCharMap[51][65] = true // : '%3A' | ||
uriComponentsCharMap[51][97] = true // : '%3a' | ||
uriComponentsCharMap[51][66] = true // ; '%3B' | ||
uriComponentsCharMap[51][98] = true // ; '%3b' | ||
uriComponentsCharMap[51][68] = true // = '%3D' | ||
uriComponentsCharMap[51][100] = true // = '%3d' | ||
uriComponentsCharMap[51][70] = true // ? '%3F' | ||
uriComponentsCharMap[51][102] = true // ? '%3f' | ||
function decodeComponentChar (highCharCode, lowCharCode) { | ||
if (highCharCode === 50) { | ||
if (lowCharCode === 53) return '%' | ||
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uriComponentsCharMap[52] = new Array(49).fill(0x00) | ||
uriComponentsCharMap[52][48] = true // @ '%40' | ||
if (lowCharCode === 51) return '#' | ||
if (lowCharCode === 52) return '$' | ||
if (lowCharCode === 54) return '&' | ||
if (lowCharCode === 66) return '+' | ||
if (lowCharCode === 98) return '+' | ||
if (lowCharCode === 67) return ',' | ||
if (lowCharCode === 99) return ',' | ||
if (lowCharCode === 70) return '/' | ||
if (lowCharCode === 102) return '/' | ||
return null | ||
} | ||
if (highCharCode === 51) { | ||
if (lowCharCode === 65) return ':' | ||
if (lowCharCode === 97) return ':' | ||
if (lowCharCode === 66) return ';' | ||
if (lowCharCode === 98) return ';' | ||
if (lowCharCode === 68) return '=' | ||
if (lowCharCode === 100) return '=' | ||
if (lowCharCode === 70) return '?' | ||
if (lowCharCode === 102) return '?' | ||
return null | ||
} | ||
if (highCharCode === 52 && lowCharCode === 48) { | ||
return '@' | ||
} | ||
return null | ||
} | ||
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function sanitizeUrl (url, customDecoder) { | ||
let originPath = url | ||
function safeDecodeURI (path) { | ||
let shouldDecode = false | ||
let containsEncodedComponents = false | ||
let highChar | ||
let lowChar | ||
for (var i = 0, len = url.length; i < len; i++) { | ||
var charCode = url.charCodeAt(i) | ||
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if (shouldDecode && !containsEncodedComponents) { | ||
if (highChar === 0 && uriComponentsCharMap[charCode]) { | ||
highChar = charCode | ||
lowChar = 0x00 | ||
} else if (highChar && lowChar === 0 && uriComponentsCharMap[highChar][charCode]) { | ||
containsEncodedComponents = true | ||
for (let i = 1; i < path.length; i++) { | ||
const charCode = path.charCodeAt(i) | ||
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if (charCode === 37) { | ||
const highCharCode = path.charCodeAt(i + 1) | ||
const lowCharCode = path.charCodeAt(i + 2) | ||
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if (decodeComponentChar(highCharCode, lowCharCode) === null) { | ||
shouldDecode = true | ||
} else { | ||
highChar = undefined | ||
lowChar = undefined | ||
// %25 - encoded % char. We need to encode one more time to prevent double decoding | ||
if (highCharCode === 50 && lowCharCode === 53) { | ||
shouldDecode = true | ||
path = path.slice(0, i + 1) + '25' + path.slice(i + 1) | ||
i += 2 | ||
} | ||
i += 2 | ||
} | ||
} | ||
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// Some systems do not follow RFC and separate the path and query | ||
// string with a `;` character (code 59), e.g. `/foo;jsessionid=123456`. | ||
// Thus, we need to split on `;` as well as `?` and `#`. | ||
if (charCode === 63 || charCode === 59 || charCode === 35) { | ||
originPath = url.slice(0, i) | ||
} else if (charCode === 63 || charCode === 59 || charCode === 35) { | ||
path = path.slice(0, i) | ||
break | ||
} else if (charCode === 37) { | ||
shouldDecode = true | ||
highChar = 0x00 | ||
} | ||
} | ||
const decoded = shouldDecode ? decodeURI(originPath) : originPath | ||
return shouldDecode ? decodeURI(path) : path | ||
} | ||
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return { | ||
path: decoded, | ||
originPath, | ||
sliceParameter: containsEncodedComponents | ||
? sliceAndDecode | ||
: slicePath | ||
} | ||
function safeDecodeURIComponent (uriComponent, startIndex = 0) { | ||
let decoded = '' | ||
let lastIndex = startIndex | ||
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function sliceAndDecode (from, to) { | ||
return (customDecoder || fastDecode)(this.originPath.slice(from, to)) | ||
} | ||
} | ||
for (let i = startIndex; i < uriComponent.length; i++) { | ||
if (uriComponent.charCodeAt(i) === 37) { | ||
const highCharCode = uriComponent.charCodeAt(i + 1) | ||
const lowCharCode = uriComponent.charCodeAt(i + 2) | ||
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module.exports = sanitizeUrl | ||
const decodedChar = decodeComponentChar(highCharCode, lowCharCode) | ||
decoded += uriComponent.slice(lastIndex, i) + decodedChar | ||
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function slicePath (from, to) { | ||
return this.path.slice(from, to) | ||
lastIndex = i + 3 | ||
} | ||
} | ||
return uriComponent.slice(0, startIndex) + decoded + uriComponent.slice(lastIndex) | ||
} | ||
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module.exports = { safeDecodeURI, safeDecodeURIComponent } |
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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,94 @@ | ||
'use strict' | ||
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const t = require('tap') | ||
const test = t.test | ||
const FindMyWay = require('..') | ||
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test('Match static url without encoding option', t => { | ||
t.plan(2) | ||
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const findMyWay = FindMyWay() | ||
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const handler = () => {} | ||
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findMyWay.on('GET', '/🍌', handler) | ||
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t.same(findMyWay.find('GET', '/🍌').handler, handler) | ||
t.same(findMyWay.find('GET', '/%F0%9F%8D%8C').handler, handler) | ||
}) | ||
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test('Match parametric url with encoding option', t => { | ||
t.plan(2) | ||
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const findMyWay = FindMyWay() | ||
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findMyWay.on('GET', '/🍌/:param', () => {}) | ||
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t.same(findMyWay.find('GET', '/🍌/@').params, { param: '@' }) | ||
t.same(findMyWay.find('GET', '/%F0%9F%8D%8C/@').params, { param: '@' }) | ||
}) | ||
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test('Match encoded parametric url with encoding option', t => { | ||
t.plan(2) | ||
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const findMyWay = FindMyWay() | ||
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findMyWay.on('GET', '/🍌/:param', () => {}) | ||
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t.same(findMyWay.find('GET', '/🍌/%23').params, { param: '#' }) | ||
t.same(findMyWay.find('GET', '/%F0%9F%8D%8C/%23').params, { param: '#' }) | ||
}) | ||
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test('Decode url components', t => { | ||
t.plan(3) | ||
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const findMyWay = FindMyWay() | ||
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findMyWay.on('GET', '/:param1/:param2', () => {}) | ||
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t.same(findMyWay.find('GET', '/foo%23bar/foo%23bar').params, { param1: 'foo#bar', param2: 'foo#bar' }) | ||
t.same(findMyWay.find('GET', '/%F0%9F%8D%8C/%F0%9F%8D%8C').params, { param1: '🍌', param2: '🍌' }) | ||
t.same(findMyWay.find('GET', '/%F0%9F%8D%8C/foo%23bar').params, { param1: '🍌', param2: 'foo#bar' }) | ||
}) | ||
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test('Decode url components', t => { | ||
t.plan(4) | ||
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const findMyWay = FindMyWay() | ||
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findMyWay.on('GET', '/foo🍌bar/:param1/:param2', () => {}) | ||
findMyWay.on('GET', '/user/:id', () => {}) | ||
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t.same(findMyWay.find('GET', '/foo%F0%9F%8D%8Cbar/foo%23bar/foo%23bar').params, { param1: 'foo#bar', param2: 'foo#bar' }) | ||
t.same(findMyWay.find('GET', '/user/maintainer+tomas').params, { id: 'maintainer+tomas' }) | ||
t.same(findMyWay.find('GET', '/user/maintainer%2Btomas').params, { id: 'maintainer+tomas' }) | ||
t.same(findMyWay.find('GET', '/user/maintainer%20tomas').params, { id: 'maintainer tomas' }) | ||
}) | ||
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test('Decode url components', t => { | ||
t.plan(18) | ||
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const findMyWay = FindMyWay() | ||
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findMyWay.on('GET', '/:param1', () => {}) | ||
t.same(findMyWay.find('GET', '/foo%23bar').params, { param1: 'foo#bar' }) | ||
t.same(findMyWay.find('GET', '/foo%24bar').params, { param1: 'foo$bar' }) | ||
t.same(findMyWay.find('GET', '/foo%26bar').params, { param1: 'foo&bar' }) | ||
t.same(findMyWay.find('GET', '/foo%2bbar').params, { param1: 'foo+bar' }) | ||
t.same(findMyWay.find('GET', '/foo%2Bbar').params, { param1: 'foo+bar' }) | ||
t.same(findMyWay.find('GET', '/foo%2cbar').params, { param1: 'foo,bar' }) | ||
t.same(findMyWay.find('GET', '/foo%2Cbar').params, { param1: 'foo,bar' }) | ||
t.same(findMyWay.find('GET', '/foo%2fbar').params, { param1: 'foo/bar' }) | ||
t.same(findMyWay.find('GET', '/foo%2Fbar').params, { param1: 'foo/bar' }) | ||
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t.same(findMyWay.find('GET', '/foo%3abar').params, { param1: 'foo:bar' }) | ||
t.same(findMyWay.find('GET', '/foo%3Abar').params, { param1: 'foo:bar' }) | ||
t.same(findMyWay.find('GET', '/foo%3bbar').params, { param1: 'foo;bar' }) | ||
t.same(findMyWay.find('GET', '/foo%3Bbar').params, { param1: 'foo;bar' }) | ||
t.same(findMyWay.find('GET', '/foo%3dbar').params, { param1: 'foo=bar' }) | ||
t.same(findMyWay.find('GET', '/foo%3Dbar').params, { param1: 'foo=bar' }) | ||
t.same(findMyWay.find('GET', '/foo%3fbar').params, { param1: 'foo?bar' }) | ||
t.same(findMyWay.find('GET', '/foo%3Fbar').params, { param1: 'foo?bar' }) | ||
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t.same(findMyWay.find('GET', '/foo%40bar').params, { param1: 'foo@bar' }) | ||
}) |