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index.js
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index.js
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const expect = require('unexpected')
.clone()
.use(require('unexpected-set'))
.use(require('unexpected-sinon'));
const hyperlink = require('../lib/');
const httpception = require('httpception');
const TapRender = require('@munter/tap-render');
const sinon = require('sinon');
const pathModule = require('path');
function spyTapCalls(spy) {
return spy
.withArgs(null)
.getCalls()
.map((c) => c.args[1]);
}
describe('hyperlink', function () {
it('should complain about insecure content warnings', async function () {
httpception([
{
request: 'GET https://example.com/',
response: {
statusCode: 200,
headers: {
'Content-Type': 'text/html; charset=UTF-8',
},
body:
'<html><head><script src="http://example.com/insecureScript.js"></script></head><body></body></html>',
},
},
{
request: 'GET http://example.com/insecureScript.js',
response: {
statusCode: 200,
headers: {
'Content-Type': 'application/javascript',
},
body: 'alert("hello, insecure world");',
},
},
]);
const t = new TapRender();
sinon.spy(t, 'push');
await hyperlink(
{
recursive: false,
root: 'https://example.com/',
inputUrls: ['https://example.com/'],
},
t
);
expect(t.close(), 'to satisfy', { fail: 1 });
expect(t.push, 'to have a call satisfying', () => {
t.push(null, {
ok: false,
operator: 'mixed-content',
name:
'mixed-content https://example.com/ --> http://example.com/insecureScript.js',
at:
'https://example.com/ (1:26) <script src="http://example.com/insecureScript.js">...</script>',
expected:
'https://example.com/ --> https://example.com/insecureScript.js',
actual: 'https://example.com/ --> http://example.com/insecureScript.js',
});
});
});
it('should not follow links to unsupported protocols', async function () {
httpception([
{
request: 'GET https://example.com/',
response: {
statusCode: 200,
headers: {
'Content-Type': 'text/html; charset=UTF-8',
},
body: `
<a href="https://google.com">find something securely</a>
<a href="http://google.com">find something insecurely</a>
<a href="//google.com">find something in whatever way you're browsing now</a>
<a href="mailto:recipient@hopefullynonexistingdomainname-whoreallyknows.tools">send me an email</a>
<a href="tel:+4500000000">give me a call</a>
<a href="fax:+4500000000">does anyone still use these?</a>
<a href="gopher://gopher.yoyodyne.com/">this is just rediculous</a>
`,
},
},
{
request: 'HEAD https://google.com/',
response: {
statusCode: 200,
headers: {
'Content-Type': 'text/html',
},
},
},
{
request: 'HEAD http://google.com/',
response: {
statusCode: 200,
headers: {
'Content-Type': 'text/html',
},
},
},
]);
const t = new TapRender();
sinon.spy(t, 'push');
await hyperlink(
{
root: 'https://example.com/',
inputUrls: ['https://example.com/'],
},
t
);
// expect(t.close(), 'to satisfy', { count: 1, pass: 1, fail: 0, skip: 0, todo: 0 });
expect(t.push, 'to have calls satisfying', () => {
t.push({ name: 'Crawling internal assets' });
t.push(null, {
name: 'load https://example.com/',
ok: true,
});
t.push({ name: 'Crawling 2 outgoing urls' });
t.push(null, {
ok: true,
name: 'external-check https://google.com',
});
t.push(null, {
ok: true,
name: 'external-check http://google.com',
});
t.push({
name:
'Connecting to 0 hosts (checking <link rel="preconnect" href="...">',
});
t.push({
name:
'Looking up 0 host names (checking <link rel="dns-prefetch" href="...">',
});
});
});
it('should complain if an asset loaded has an unexpected Content-Type', async function () {
httpception([
{
request: 'GET https://example.com/',
response: {
statusCode: 200,
headers: {
'Content-Type': 'text/html; charset=UTF-8',
},
body: `
<!DOCTYPE html>
<html>
<head>
<link rel="stylesheet" href="styles.css">
</head>
<body>
</body>
</html>
`,
},
},
{
request: 'GET https://example.com/styles.css',
response: {
headers: {
'Content-Type': 'image/png',
},
body: 'div { color: maroon; }',
},
},
]);
const t = new TapRender();
sinon.spy(t, 'push');
await hyperlink(
{
root: 'https://example.com/',
inputUrls: ['https://example.com/'],
},
t
);
expect(t.close(), 'to satisfy', { fail: 1 });
expect(t.push, 'to have a call satisfying', () => {
t.push(null, {
ok: false,
operator: 'content-type-mismatch',
name: 'content-type-mismatch https://example.com/styles.css',
actual: 'Asset is used as both Css and Png',
at:
'https://example.com/ (5:44) <link rel="stylesheet" href="styles.css">',
});
});
});
it('should complain if an asset being HEADed has an unexpected Content-Type', async function () {
httpception([
{
request: 'GET https://example.com/',
response: {
statusCode: 200,
headers: {
'Content-Type': 'text/html; charset=UTF-8',
},
body: `
<!DOCTYPE html>
<html>
<head></head>
<body>
<img src="hey.png">
</body>
</html>
`,
},
},
{
request: 'HEAD https://example.com/hey.png',
response: {
headers: {
'Content-Type': 'text/plain',
},
},
},
]);
const t = new TapRender();
sinon.spy(t, 'push');
await hyperlink(
{
root: 'https://example.com/',
inputUrls: ['https://example.com/'],
},
t
);
expect(t.close(), 'to satisfy', { fail: 1 });
expect(t.push, 'to have a call satisfying', () => {
t.push(null, {
ok: false,
operator: 'content-type-mismatch',
name: 'content-type-mismatch https://example.com/hey.png',
actual: 'Asset is used as both Image and Text',
at: 'https://example.com/ (6:25) <img src="hey.png">',
});
});
});
it('should complain if an asset being HEADed has no Content-Type', async function () {
httpception([
{
request: 'GET https://example.com/',
response: {
statusCode: 200,
headers: {
'Content-Type': 'text/html; charset=UTF-8',
},
body: `
<!DOCTYPE html>
<html>
<head></head>
<body>
<img src="hey.png">
</body>
</html>
`,
},
},
{
request: 'HEAD https://example.com/hey.png',
response: 200,
},
]);
const t = new TapRender();
sinon.spy(t, 'push');
await hyperlink(
{
root: 'https://example.com/',
inputUrls: ['https://example.com/'],
},
t
);
expect(t.close(), 'to satisfy', { fail: 1 });
expect(t.push, 'to have a call satisfying', () => {
t.push(null, {
ok: false,
operator: 'content-type-missing',
name: 'content-type-missing https://example.com/hey.png',
at: 'https://example.com/ (6:25) <img src="hey.png">',
});
});
});
it('should unload the assets as they are being processed', async function () {
const server = require('http')
.createServer((req, res) => {
res.writeHead(200, {
'Content-Type': 'text/css',
});
const id = parseInt(req.url.match(/(\d+)\.css/));
if (id < 100) {
res.end(`@import "${id + 1}.css";`);
} else {
res.end('body { color: maroon; }');
}
})
.listen(0);
const serverAddress = server.address();
const root = `http://${
serverAddress.address === '::' ? 'localhost' : serverAddress.address
}:${serverAddress.port}/`;
const t = new TapRender();
try {
const ag = await hyperlink(
{
root,
inputUrls: [`${root}1.css`],
},
t
);
expect(t.close(), 'to satisfy', { fail: 0, pass: 100 });
expect(ag.findAssets({ isLoaded: false }), 'to have length', 100);
expect(ag.findAssets({ isLoaded: true }), 'to have length', 0);
} finally {
server.close();
}
});
it('should not throw when populating missing files', async function () {
const root = `file://${process.cwd()}`;
const t = new TapRender();
sinon.spy(t, 'push');
await hyperlink(
{
recursive: true,
root,
inputUrls: [
{
url: `${root}/index.html`,
text:
'<!doctype html><html><body><a href="broken.html">broken</a></body></html>',
},
],
},
t
);
expect(t.close(), 'to satisfy', {
count: 2,
pass: 1,
fail: 1,
skip: 0,
todo: 0,
});
expect(t.push, 'to have calls satisfying', () => {
t.push({
name: 'Crawling internal assets',
});
t.push(null, {
ok: true,
name: `load index.html`,
});
t.push(null, {
ok: false,
operator: 'load',
name: `load broken.html`,
actual: expect.it('to begin with', 'ENOENT: no such file or directory'),
});
t.push({
name: 'Crawling 0 outgoing urls',
});
t.push({
name:
'Connecting to 0 hosts (checking <link rel="preconnect" href="...">',
});
t.push({
name:
'Looking up 0 host names (checking <link rel="dns-prefetch" href="...">',
});
});
});
describe('on a local file system', function () {
it('should not execute tests on outgoing relations of other pages when recursion is disabled', async function () {
const t = new TapRender();
sinon.spy(t, 'push');
await hyperlink(
{
recursive: false,
root: pathModule.resolve(__dirname, '..', 'testdata', 'recursive'),
inputUrls: ['index.html'],
},
t
);
expect(t.close(), 'to satisfy', {
count: 8,
pass: 8,
fail: 0,
skip: 0,
todo: 0,
});
expect(t.push, 'to have a call satisfying', () => {
t.push({
name: 'Crawling 0 outgoing urls',
});
});
expect(t.push, 'to have no calls satisfying', () => {
t.push(null, {
operator: 'fragment-check',
name:
'fragment-check testdata/recursive/page.html --> index.html#brokenfragment',
});
});
expect(t.push, 'to have no calls satisfying', () => {
t.push(null, {
operator: 'external-check',
name:
'external-check testdata/recursive/index.html --> hyperlink.gif',
});
});
});
it('should not execute tests on outgoing relations of other pages when recursion is enabled', async function () {
const t = new TapRender();
sinon.spy(t, 'push');
await hyperlink(
{
recursive: true,
root: pathModule.resolve(__dirname, '..', 'testdata', 'recursive'),
inputUrls: ['index.html'],
},
t
);
expect(spyTapCalls(t.push), 'with set semantics to satisfy', [
{
operator: 'load',
name: 'load testdata/recursive/index.html',
ok: true,
},
{
operator: 'load',
name: 'load testdata/recursive/style.css',
ok: true,
},
{
operator: 'load',
name: 'load testdata/recursive/favicon.ico',
ok: true,
},
{
operator: 'load',
name: 'load testdata/recursive/page.html',
ok: true,
},
{
operator: 'load',
name: 'load testdata/recursive/hyperlink.gif',
ok: true,
},
{
operator: 'load',
name: 'load testdata/recursive/bf176a25b4f8227fea804854c98dc5e2.png',
ok: true,
},
{
operator: 'load',
name:
'load testdata/recursive/1ebd0482aadade65f20ec178219fe012.woff2',
ok: true,
},
{
operator: 'load',
name: 'load testdata/recursive/314bbcd238d458622bbf32427346774f.woff',
ok: true,
},
{
operator: 'fragment-check',
name:
'fragment-check testdata/recursive/page.html --> index.html#brokenfragment',
expected: 'id="brokenfragment"',
at:
'testdata/recursive/page.html:8:14 <a href="index.html#brokenfragment">...</a>',
ok: false,
actual: null,
},
]);
expect(t.close(), 'to satisfy', {
count: 9,
pass: 8,
fail: 1,
skip: 0,
todo: 0,
});
expect(t.push, 'to have a call satisfying', () => {
t.push({
name: 'Crawling 0 outgoing urls',
});
});
});
});
describe('with document fragments', function () {
it('should not complain when a referenced fragment exists in the target HTML', async function () {
httpception([
{
request: 'GET https://example.com/',
response: {
statusCode: 200,
headers: {
'Content-Type': 'text/html; charset=UTF-8',
},
body:
'<html><head></head><body><a href="foo.html#bar">Link</a></body></html>',
},
},
{
request: 'GET https://example.com/foo.html',
response: {
statusCode: 200,
headers: {
'Content-Type': 'text/html; charset=UTF-8',
},
body:
'<html><head></head><body><a id="bar">Welcome!</a></body></html>',
},
},
]);
const t = new TapRender();
sinon.spy(t, 'push');
await hyperlink(
{
recursive: true,
root: 'https://example.com/',
inputUrls: ['https://example.com/'],
},
t
);
expect(t.close(), 'to satisfy', { fail: 0 });
expect(t.push, 'to have a call satisfying', () => {
t.push(null, {
ok: true,
operator: 'fragment-check',
name: 'fragment-check https://example.com/ --> foo.html#bar',
});
});
});
it('should issue an error when a referenced fragment does not exist', async function () {
httpception([
{
request: 'GET https://example.com/',
response: {
statusCode: 200,
headers: {
'Content-Type': 'text/html; charset=UTF-8',
},
body:
'<html><head></head><body><a href="foo.html#bar">Link</a></body></html>',
},
},
{
request: 'GET https://example.com/foo.html',
response: {
statusCode: 200,
headers: {
'Content-Type': 'text/html; charset=UTF-8',
},
body: '<html><head></head><body>No fragments here</body></html>',
},
},
]);
const t = new TapRender();
sinon.spy(t, 'push');
await hyperlink(
{
recursive: true,
root: 'https://example.com/',
inputUrls: ['https://example.com/'],
},
t
);
expect(t.close(), 'to satisfy', { fail: 1 });
expect(t.push, 'to have a call satisfying', () => {
t.push(null, {
ok: false,
operator: 'fragment-check',
expected: 'id="bar"',
name: 'fragment-check https://example.com/ --> foo.html#bar',
});
});
});
describe('with an implicit index.html in a subdir via FileRedirect', function () {
it('should complain about a fragment when there is no trailing slash on the href, even though the fragment exists', async function () {
const t = new TapRender();
sinon.spy(t, 'push');
await hyperlink(
{
recursive: false,
root: pathModule.resolve(
__dirname,
'..',
'testdata',
'fragmentAndRedirectWithoutSlash'
),
inputUrls: ['index.html'],
},
t
);
expect(t.push, 'to have a call exhaustively satisfying', () => {
t.push(null, {
operator: 'fragment-redirect',
name:
'fragment-redirect testdata/fragmentAndRedirectWithoutSlash/index.html --> testdata/fragmentAndRedirectWithoutSlash/subdir#myFragment --> testdata/fragmentAndRedirectWithoutSlash/subdir/index.html',
actual: '/subdir#myFragment',
expected: '/subdir/#myFragment',
at:
'testdata/fragmentAndRedirectWithoutSlash/index.html:5:12 <a href="/subdir#myFragment">...</a>',
ok: false,
});
});
});
it('should not complain about a fragment when there is a trailing slash on the href', async function () {
const t = new TapRender();
sinon.spy(t, 'push');
await hyperlink(
{
recursive: false,
root: pathModule.resolve(
__dirname,
'..',
'testdata',
'fragmentAndRedirectWithSlash'
),
inputUrls: ['index.html'],
},
t
);
expect(t.push, 'to have no calls satisfying', () => {
t.push(null, {
operator: 'fragment-redirect',
});
});
});
});
describe('with an implicit index.html in a subdir via HttpRedirect', function () {
it('should complain about a fragment href pointing to a page that is redirected, even though the fragment exists', async function () {
httpception([
{
request: 'GET https://example.com/',
response: {
headers: {
'Content-Type': 'text/html',
},
body: `<!DOCTYPE html><html><head></head><body><a href="/subdir#myFragment"></a></body></html>`,
},
},
{
request: 'GET https://example.com/subdir',
response: {
statusCode: 302,
headers: {
Location: 'https://example.com/subdir/',
},
},
},
{
request: 'GET https://example.com/subdir/',
response: {
headers: {
'Content-Type': 'text/html',
},
body: `<!DOCTYPE html><html><head></head><body><div id="myFragment"></div></body></html>`,
},
},
]);
const t = new TapRender();
sinon.spy(t, 'push');
await hyperlink(
{
recursive: true,
root: 'https://example.com/',
inputUrls: ['https://example.com/'],
},
t
);
expect(t.push, 'to have a call exhaustively satisfying', () => {
t.push(null, {
operator: 'fragment-redirect',
name:
'fragment-redirect https://example.com/ --> https://example.com/subdir#myFragment --> https://example.com/subdir/',
expected: '/subdir/#myFragment',
actual: '/subdir#myFragment',
at:
'https://example.com/ (1:50) <a href="/subdir#myFragment">...</a>',
ok: false,
});
});
});
it('should complain about a fragment href pointing to a page that is redirected, even though there is a trailing slash and the fragment exists', async function () {
httpception([
{
request: 'GET https://example.com/',
response: {
headers: {
'Content-Type': 'text/html',
},
body: `<!DOCTYPE html><html><head></head><body><a href="/subdir/#myFragment"></a></body></html>`,
},
},
{
request: 'GET https://example.com/subdir/',
response: {
statusCode: 302,
headers: {
Location: 'https://example.com/subdir2/',
},
},
},
{
request: 'GET https://example.com/subdir2/',
response: {
headers: {
'Content-Type': 'text/html',
},
body: `<!DOCTYPE html><html><head></head><body><div id="myFragment"></div></body></html>`,
},
},
]);
const t = new TapRender();
sinon.spy(t, 'push');
await hyperlink(
{
recursive: true,
root: 'https://example.com/',
inputUrls: ['https://example.com/'],
},
t
);
expect(t.push, 'to have a call exhaustively satisfying', () => {
t.push(null, {
operator: 'fragment-redirect',
name:
'fragment-redirect https://example.com/ --> https://example.com/subdir/#myFragment --> https://example.com/subdir2/',
expected: '/subdir2/#myFragment',
actual: '/subdir/#myFragment',
at:
'https://example.com/ (1:50) <a href="/subdir/#myFragment">...</a>',
ok: false,
});
});
});
});
it('should not complain about an #iefix fragment in a CSS file', async function () {
const t = new TapRender();
sinon.spy(t, 'push');
const root = pathModule.resolve(
__dirname,
'..',
'testdata',
'fontWithIefix'
);
await hyperlink(
{
root,
inputUrls: ['/'],
},
t
);
expect(t.push, 'to have no calls satisfying', () => {
t.push(null, {
operator: 'fragment-check',
});
});
});
it('should issue an error when referencing another asset with an empty fragment', async function () {
httpception([
{
request: 'GET https://example.com/',
response: {
statusCode: 200,
headers: {
'Content-Type': 'text/html; charset=UTF-8',
},
body:
'<html><head></head><body><a href="foo.html#">Link</a></body></html>',
},
},
{
request: 'GET https://example.com/foo.html',
response: {
statusCode: 200,
headers: {
'Content-Type': 'text/html; charset=UTF-8',
},
body: '<html><head></head><body>No fragments here</body></html>',
},
},
]);
const t = new TapRender();
sinon.spy(t, 'push');
await hyperlink(
{
recursive: true,
root: 'https://example.com/',
inputUrls: ['https://example.com/'],
},
t
);
expect(t.close(), 'to satisfy', { fail: 1 });
expect(t.push, 'to have a call satisfying', () => {
t.push(null, {
ok: false,
operator: 'fragment-check',
name: 'fragment-check https://example.com/ --> foo.html#',
expected:
'Fragment identifiers in links to different documents should not be empty',
});
});
});
it('should not issue an error when referencing an external asset with an existing fragment', async function () {
httpception([
{
request: 'GET https://example.com/',
response: {
statusCode: 200,
headers: {
'Content-Type': 'text/html; charset=UTF-8',
},
body:
'<html><head></head><body><a href="https://example2.com/foo.html#frag">Link</a></body></html>',
},
},
{
request: 'GET https://example2.com/foo.html',
response: {
statusCode: 200,
headers: {
'Content-Type': 'text/html; charset=UTF-8',
},
body:
'<html><head><link rel="stylesheet" href="dont-follow.css"></head><body><img src="dont-follow.png"><main id="frag">I exist</main></body></html>',
},
},
]);
const t = new TapRender();
sinon.spy(t, 'push');
await hyperlink(
{
recursive: true,
root: 'https://example.com/',
inputUrls: ['https://example.com/'],
},
t
);
expect(t.close(), 'to satisfy', { fail: 0 });
expect(t.push, 'to have a call satisfying', () => {
t.push(null, {
ok: true,
operator: 'fragment-check',
name:
'fragment-check https://example.com/ --> https://example2.com/foo.html#frag',
expected: 'id="frag"',
});
});
});
it('should be fine when an asset references itself with an empty fragment', async function () {
httpception([
{
request: 'GET https://example.com/',
response: {
statusCode: 200,
headers: {
'Content-Type': 'text/html; charset=UTF-8',
},
body: '<html><head></head><body><a href="#">Link</a></body></html>',
},
},
]);
const t = new TapRender();
sinon.spy(t, 'push');
await hyperlink(
{
recursive: true,
root: 'https://example.com/',
inputUrls: ['https://example.com/'],
},
t
);
expect(t.close(), 'to satisfy', { fail: 0 });
expect(t.push, 'to have no calls satisfying', () => {
t.push(null, {
operator: 'fragment-check',
});
});
});
describe('on a local file system', function () {
it('should report missing fragments through a FileRedirect', async function () {
const t = new TapRender();
sinon.spy(t, 'push');
await hyperlink(
{
recursive: true,
root: pathModule.resolve(
__dirname,
'..',
'testdata',
'fragmentIdentifier'
),
inputUrls: ['index.html'],
},
t
);
expect(t.close(), 'to satisfy', {
count: 5,
pass: 4,
fail: 1,
skip: 0,
todo: 0,
});
expect(t.push, 'to have a call satisfying', () => {
t.push(null, {
ok: false,
operator: 'fragment-check',
name:
'fragment-check testdata/fragmentIdentifier/index.html --> /subdir/#definitely-broken',
expected: 'id="definitely-broken"',
});
}).and('to have no calls satisfying', () => {
t.push(null, {
name: expect.it('to contain', '#fine'),
ok: false,
});
});
});
it('should report missing name-attributes through a FileRedirect', async function () {
const t = new TapRender();
sinon.spy(t, 'push');
await hyperlink(
{
recursive: true,
root: pathModule.resolve(
__dirname,
'..',
'testdata',
'nameIdentifier'
),
inputUrls: ['index.html'],
},
t
);
expect(t.close(), 'to satisfy', {
count: 5,