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http: align header value validation with Fetch spec #61597
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,169 @@ | ||
| 'use strict'; | ||
| const common = require('../common'); | ||
| const assert = require('assert'); | ||
| const http = require('http'); | ||
| const net = require('net'); | ||
|
|
||
| // Integration tests for relaxed header value validation. | ||
| // When insecureHTTPParser is enabled, outgoing headers with control characters | ||
| // (0x01-0x1f except HTAB, and DEL 0x7f) are allowed per Fetch spec. | ||
| // NUL (0x00), CR (0x0d), and LF (0x0a) are always rejected. | ||
|
|
||
| // Helper: create a request that won't actually connect (for setHeader tests) | ||
| function dummyRequest(opts) { | ||
| const req = http.request({ host: '127.0.0.1', port: 1, ...opts }); | ||
| req.on('error', () => {}); // Suppress connection errors | ||
| return req; | ||
| } | ||
|
|
||
| // ============================================================================ | ||
| // Test 1: Client setHeader with control chars in strict mode (default) - throws | ||
| // ============================================================================ | ||
| { | ||
| const req = dummyRequest(); | ||
| assert.throws(() => { | ||
| req.setHeader('X-Test', 'value\x01here'); | ||
| }, { code: 'ERR_INVALID_CHAR' }); | ||
| req.destroy(); | ||
| } | ||
|
|
||
| // ============================================================================ | ||
| // Test 2: Client setHeader with control chars in lenient mode - allowed | ||
| // ============================================================================ | ||
| { | ||
| const req = dummyRequest({ insecureHTTPParser: true }); | ||
| // Should not throw - control chars allowed in lenient mode | ||
| req.setHeader('X-Test', 'value\x01here'); | ||
| req.setHeader('X-Bel', 'ding\x07'); | ||
| req.setHeader('X-Esc', 'esc\x1b'); | ||
| req.setHeader('X-Del', 'del\x7f'); | ||
| req.destroy(); | ||
| } | ||
|
|
||
| // ============================================================================ | ||
| // Test 3: NUL, CR, LF always rejected even in lenient mode (client) | ||
| // ============================================================================ | ||
| { | ||
| const req = dummyRequest({ insecureHTTPParser: true }); | ||
| assert.throws(() => { | ||
| req.setHeader('X-Test', 'value\x00here'); | ||
| }, { code: 'ERR_INVALID_CHAR' }); | ||
| assert.throws(() => { | ||
| req.setHeader('X-Test', 'value\rhere'); | ||
| }, { code: 'ERR_INVALID_CHAR' }); | ||
| assert.throws(() => { | ||
| req.setHeader('X-Test', 'value\nhere'); | ||
| }, { code: 'ERR_INVALID_CHAR' }); | ||
| req.destroy(); | ||
| } | ||
|
|
||
| // ============================================================================ | ||
| // Test 4: Server response setHeader with control chars in lenient mode | ||
| // ============================================================================ | ||
| { | ||
| const server = http.createServer({ | ||
| insecureHTTPParser: true, | ||
| }, common.mustCall((req, res) => { | ||
| // Should not throw - control chars allowed in lenient mode | ||
| res.setHeader('X-Custom', 'value\x01here'); | ||
| res.end('ok'); | ||
| })); | ||
|
|
||
| server.listen(0, common.mustCall(() => { | ||
| const port = server.address().port; | ||
| // Use a raw TCP connection to read the response headers directly, | ||
| // since http.get would fail to parse the control char in the header. | ||
| const client = net.connect(port, common.mustCall(() => { | ||
| client.write('GET / HTTP/1.1\r\nHost: localhost\r\nConnection: close\r\n\r\n'); | ||
| })); | ||
| let data = ''; | ||
| client.on('data', (chunk) => { data += chunk; }); | ||
| client.on('end', common.mustCall(() => { | ||
| // eslint-disable-next-line no-control-regex | ||
| assert.match(data, /X-Custom: value\x01here/); | ||
| server.close(); | ||
| })); | ||
| })); | ||
| } | ||
|
|
||
| // ============================================================================ | ||
| // Test 5: Server response NUL/CR/LF always rejected in lenient mode | ||
| // ============================================================================ | ||
| { | ||
| const server = http.createServer({ | ||
| insecureHTTPParser: true, | ||
| }, common.mustCall((req, res) => { | ||
| assert.throws(() => { | ||
| res.setHeader('X-Test', 'value\x00here'); | ||
| }, { code: 'ERR_INVALID_CHAR' }); | ||
| assert.throws(() => { | ||
| res.setHeader('X-Test', 'value\rhere'); | ||
| }, { code: 'ERR_INVALID_CHAR' }); | ||
| assert.throws(() => { | ||
| res.setHeader('X-Test', 'value\nhere'); | ||
| }, { code: 'ERR_INVALID_CHAR' }); | ||
| res.end('ok'); | ||
| })); | ||
|
|
||
| server.listen(0, common.mustCall(() => { | ||
| http.get({ port: server.address().port }, common.mustCall((res) => { | ||
| res.resume(); | ||
| res.on('end', common.mustCall(() => { | ||
| server.close(); | ||
| })); | ||
| })); | ||
| })); | ||
| } | ||
|
|
||
| // ============================================================================ | ||
| // Test 6: Server response strict mode (default) rejects control chars | ||
| // ============================================================================ | ||
| { | ||
| const server = http.createServer(common.mustCall((req, res) => { | ||
| assert.throws(() => { | ||
| res.setHeader('X-Test', 'value\x01here'); | ||
| }, { code: 'ERR_INVALID_CHAR' }); | ||
| res.end('ok'); | ||
| })); | ||
|
|
||
| server.listen(0, common.mustCall(() => { | ||
| http.get({ port: server.address().port }, common.mustCall((res) => { | ||
| res.resume(); | ||
| res.on('end', common.mustCall(() => { | ||
| server.close(); | ||
| })); | ||
| })); | ||
| })); | ||
| } | ||
|
|
||
| // ============================================================================ | ||
| // Test 7: appendHeader also respects lenient mode | ||
| // ============================================================================ | ||
| { | ||
| const req = dummyRequest({ insecureHTTPParser: true }); | ||
| // Should not throw in lenient mode | ||
| req.appendHeader('X-Test', 'value\x01here'); | ||
| req.destroy(); | ||
| } | ||
|
|
||
| // ============================================================================ | ||
| // Test 8: appendHeader strict mode rejects control chars | ||
| // ============================================================================ | ||
| { | ||
| const req = dummyRequest(); | ||
| assert.throws(() => { | ||
| req.appendHeader('X-Test', 'value\x01here'); | ||
| }, { code: 'ERR_INVALID_CHAR' }); | ||
| req.destroy(); | ||
| } | ||
|
|
||
| // ============================================================================ | ||
| // Test 9: Explicit insecureHTTPParser: false overrides global flag | ||
| // ============================================================================ | ||
| { | ||
| const req = dummyRequest({ insecureHTTPParser: false }); | ||
| assert.throws(() => { | ||
| req.setHeader('X-Test', 'value\x01here'); | ||
| }, { code: 'ERR_INVALID_CHAR' }); | ||
| req.destroy(); | ||
| } |
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Nit: the comment should clarify that this is the original behavior