const assert = require('assert'); const { validate, convert, lookup } = require('../lib/custom-media'); const http = require('http'); describe('custom-media', () => { let valid, invalid; beforeEach(() => { invalid = valid = { title: 'Test Video', duration: 10, live: false, thumbnail: 'https://example.com/thumb.jpg', sources: [ { url: 'https://example.com/video.mp4', contentType: 'video/mp4', quality: 1080, bitrate: 5000 } ], textTracks: [ { url: 'https://example.com/subtitles.vtt', contentType: 'text/vtt', name: 'English Subtitles' } ] }; }); describe('#validate', () => { it('accepts valid metadata', () => { validate(valid); }); it('accepts valid metadata with no optional params', () => { delete valid.live; delete valid.thumbnail; delete valid.textTracks; delete valid.sources[0].bitrate; validate(valid); }); it('rejects missing title', () => { delete invalid.title; assert.throws(() => validate(invalid), /title must be a string/); }); it('rejects blank title', () => { invalid.title = ''; assert.throws(() => validate(invalid), /title must not be blank/); }); it('rejects non-numeric duration', () => { invalid.duration = 'twenty four seconds'; assert.throws(() => validate(invalid), /duration must be a number/); }); it('rejects non-finite duration', () => { invalid.duration = NaN; assert.throws(() => validate(invalid), /duration must be a non-negative finite number/); }); it('rejects negative duration', () => { invalid.duration = -1; assert.throws(() => validate(invalid), /duration must be a non-negative finite number/); }); it('rejects non-boolean live', () => { invalid.live = 'false'; assert.throws(() => validate(invalid), /live must be a boolean/); }); it('rejects non-string thumbnail', () => { invalid.thumbnail = 1234; assert.throws(() => validate(invalid), /thumbnail must be a string/); }); it('rejects invalid thumbnail URL', () => { invalid.thumbnail = 'http://example.com/thumb.jpg'; assert.throws(() => validate(invalid), /URL protocol must be HTTPS/); }); it('rejects non-live DASH', () => { invalid.live = false; invalid.sources[0].contentType = 'application/dash+xml'; assert.throws( () => validate(invalid), /contentType "application\/dash\+xml" requires live: true/ ); }); }); describe('#validateSources', () => { it('rejects non-array sources', () => { invalid.sources = { a: 'b' }; assert.throws(() => validate(invalid), /sources must be a list/); }); it('rejects empty source list', () => { invalid.sources = []; assert.throws(() => validate(invalid), /source list must be nonempty/); }); it('rejects non-string source url', () => { invalid.sources[0].url = 1234; assert.throws(() => validate(invalid), /source URL must be a string/); }); it('rejects invalid source URL', () => { invalid.sources[0].url = 'http://example.com/thumb.jpg'; assert.throws(() => validate(invalid), /URL protocol must be HTTPS/); }); it('rejects unacceptable source contentType', () => { invalid.sources[0].contentType = 'rtmp/flv'; assert.throws(() => validate(invalid), /unacceptable source contentType/); }); it('rejects unacceptable source quality', () => { invalid.sources[0].quality = 144; assert.throws(() => validate(invalid), /unacceptable source quality/); }); it('rejects non-numeric source bitrate', () => { invalid.sources[0].bitrate = '1000kbps' assert.throws(() => validate(invalid), /source bitrate must be a number/); }); it('rejects non-finite source bitrate', () => { invalid.sources[0].bitrate = Infinity; assert.throws(() => validate(invalid), /source bitrate must be a non-negative finite number/); }); it('rejects negative source bitrate', () => { invalid.sources[0].bitrate = -1000; assert.throws(() => validate(invalid), /source bitrate must be a non-negative finite number/); }); }); describe('#validateTextTracks', () => { it('rejects non-array text track list', () => { invalid.textTracks = { a: 'b' }; assert.throws(() => validate(invalid), /textTracks must be a list/); }); it('rejects non-string track url', () => { invalid.textTracks[0].url = 1234; assert.throws(() => validate(invalid), /text track URL must be a string/); }); it('rejects invalid track URL', () => { invalid.textTracks[0].url = 'http://example.com/thumb.jpg'; assert.throws(() => validate(invalid), /URL protocol must be HTTPS/); }); it('rejects unacceptable track contentType', () => { invalid.textTracks[0].contentType = 'text/plain'; assert.throws(() => validate(invalid), /unacceptable text track contentType/); }); it('rejects non-string track name', () => { invalid.textTracks[0].name = 1234; assert.throws(() => validate(invalid), /text track name must be a string/); }); it('rejects blank track name', () => { invalid.textTracks[0].name = ''; assert.throws(() => validate(invalid), /text track name must be nonempty/); }); }); describe('#validateURL', () => { it('rejects non-URLs', () => { invalid.sources[0].url = 'not a url'; assert.throws(() => validate(invalid), /invalid URL/); }); it('rejects non-https', () => { invalid.sources[0].url = 'http://example.com/thumb.jpg'; assert.throws(() => validate(invalid), /URL protocol must be HTTPS/); }); it('rejects IP addresses', () => { invalid.sources[0].url = 'https://0.0.0.0/thumb.jpg'; assert.throws(() => validate(invalid), /URL hostname must be a domain name/); }); }); describe('#convert', () => { let expected; let id = 'testing'; beforeEach(() => { expected = { id: 'testing', title: 'Test Video', seconds: 10, duration: '00:10', type: 'cm', meta: { direct: { 1080: [ { link: 'https://example.com/video.mp4', contentType: 'video/mp4', quality: 1080 } ] }, textTracks: [ { url: 'https://example.com/subtitles.vtt', contentType: 'text/vtt', name: 'English Subtitles' } ] } }; }); function cleanForComparison(actual) { actual = actual.pack(); // Strip out extraneous undefineds for (let key in actual.meta) { if (actual.meta[key] === undefined) delete actual.meta[key]; } return actual; } it('converts custom metadata to a CyTube Media object', () => { const media = convert(id, valid); const actual = cleanForComparison(media); assert.deepStrictEqual(actual, expected); }); it('sets duration to 0 if live = true', () => { valid.live = true; expected.duration = '00:00'; expected.seconds = 0; const media = convert(id, valid); const actual = cleanForComparison(media); assert.deepStrictEqual(actual, expected); }); }); describe('#lookup', () => { let server; let serveFunc; beforeEach(() => { serveFunc = function (req, res) { res.writeHead(200, { 'Content-Type': 'application/json' }); res.write(JSON.stringify(valid, null, 2)); res.end(); }; server = http.createServer((req, res) => serveFunc(req, res)); server.listen(10111); }); afterEach(done => { server.close(() => done()); }); it('retrieves metadata', () => { function cleanForComparison(actual) { actual = actual.pack(); delete actual.id; // Strip out extraneous undefineds for (let key in actual.meta) { if (actual.meta[key] === undefined) delete actual.meta[key]; } return actual; } const expected = { title: 'Test Video', seconds: 10, duration: '00:10', type: 'cm', meta: { direct: { 1080: [ { link: 'https://example.com/video.mp4', contentType: 'video/mp4', quality: 1080 } ] }, textTracks: [ { url: 'https://example.com/subtitles.vtt', contentType: 'text/vtt', name: 'English Subtitles' } ] } }; return lookup('http://127.0.0.1:10111/').then(result => { assert.deepStrictEqual(cleanForComparison(result), expected); }); }); it('rejects the wrong content-type', () => { serveFunc = (req, res) => { res.writeHead(200, { 'Content-Type': 'text/plain' }); res.write(JSON.stringify(valid, null, 2)); res.end(); }; return lookup('http://127.0.0.1:10111/').then(() => { throw new Error('Expected failure due to wrong content-type'); }).catch(error => { assert.strictEqual( error.message, 'Expected content-type application/json, not text/plain' ); }); }); it('rejects non-200 status codes', () => { serveFunc = (req, res) => { res.writeHead(404, { 'Content-Type': 'application/json' }); res.write(JSON.stringify(valid, null, 2)); res.end(); }; return lookup('http://127.0.0.1:10111/').then(() => { throw new Error('Expected failure due to 404'); }).catch(error => { assert.strictEqual( error.message, 'Expected HTTP 200 OK, not 404 Not Found' ); }); }); it('rejects responses >100KB', () => { serveFunc = (req, res) => { res.writeHead(200, { 'Content-Type': 'application/json' }); res.write(Buffer.alloc(200 * 1024)); res.end(); }; return lookup('http://127.0.0.1:10111/').then(() => { throw new Error('Expected failure due to response size'); }).catch(error => { assert.strictEqual( error.message, 'Response size exceeds 100KB' ); }); }); it('times out', () => { serveFunc = (req, res) => { res.writeHead(200, { 'Content-Type': 'application/json' }); res.write(JSON.stringify(valid, null, 2)); setTimeout(() => res.end(), 100); }; return lookup('http://127.0.0.1:10111/', { timeout: 1 }).then(() => { throw new Error('Expected failure due to request timeout'); }).catch(error => { assert.strictEqual( error.message, 'Request timed out' ); assert.strictEqual(error.code, 'ETIMEDOUT'); }); }); it('rejects URLs with non-http(s) protocols', () => { return lookup('ftp://127.0.0.1:10111/').then(() => { throw new Error('Expected failure due to unacceptable URL protocol'); }).catch(error => { assert.strictEqual( error.message, 'Unacceptable protocol "ftp:". Custom metadata must be retrieved' + ' by HTTP or HTTPS' ); }); }); it('rejects invalid URLs', () => { return lookup('not valid').then(() => { throw new Error('Expected failure due to invalid URL'); }).catch(error => { assert.strictEqual( error.message, 'Invalid URL "not valid"' ); }); }); }); });