cli: add --max-http-header-size flag #24811

cjihrig · 2018-12-03T17:33:00Z

Allow the maximum size of HTTP headers to be overridden from the command line.

Refs: nodejs/http-parser#453
Fixes: #24692

Checklist

make -j4 test (UNIX), or vcbuild test (Windows) passes
tests and/or benchmarks are included
documentation is changed or added
commit message follows commit guidelines

nodejs-github-bot · 2018-12-03T17:33:04Z

@cjihrig build started: https://ci.nodejs.org/blue/organizations/jenkins/node-test-pull-request-lite-pipeline/detail/node-test-pull-request-lite-pipeline/1807/pipeline

mcollina · 2018-12-03T18:05:15Z

Is there a matching PR for http-parser?

@cjihrig do you see this as an alternative to #24716?

mcollina · 2018-12-03T18:05:45Z

I think we should expose that value as a read-only property under http.

cjihrig · 2018-12-03T18:12:02Z

Is there a matching PR for http-parser?

Yes, nodejs/http-parser#453

do you see this as an alternative to #24716?

Not strictly an alternative. See #24716 (comment) for my feelings on having both.

src/node_http_parser.cc

sam-github · 2018-12-03T18:23:38Z

Probably an obvious suggestion, but perhaps you can reuse the existing tests if they are made slightly context aware wrt. the size setting, then wrap them in one that specifies a node option, like https://github.com/nodejs/node/blob/master/test/parallel/test-tls-cli-min-version-1.0.js

doc/api/cli.md

src/node_options.h

CVE-2018-12121 PR-URL: nodejs-private/node-private#143 Ref: nodejs-private/security#139 Ref: nodejs-private/http-parser-private#2 Reviewed-By: Anatoli Papirovski <[email protected]> Reviewed-By: Ben Noordhuis <[email protected]> Reviewed-By: James M Snell <[email protected]> Reviewed-By: Rod Vagg <[email protected]> Reviewed-By: Anna Henningsen <[email protected]>

mcollina

LGTM

dglozic · 2018-12-04T18:54:07Z

Can this be back-ported to Node 8 LTS? As of v8.14.0, people blessed with domains with a lot of cookies are broken without this option, effectively preventing them from consuming any more LTS fixes (and 8.14.0 contains a security fix as well).

cjihrig · 2018-12-05T23:11:48Z

I think I've addressed all the nits.

@mcollina, you signed off on this, but did you still want this added to the HTTP API?

mcollina · 2018-12-05T23:26:05Z

It would be better but it can come later if somebody needs it.

cjihrig · 2018-12-06T01:10:05Z

It would be better but it can come later if somebody needs it.

Opened #24860 to discuss separately.

mcollina · 2018-12-07T10:00:12Z

CI: https://ci.nodejs.org/job/node-test-pull-request/19298/

mcollina · 2018-12-10T18:28:54Z

@cjihrig what's the status of this?

…e introduced - more detail: nodejs/node#24811

…troduced - Detail: nodejs/node#24811

- Detail: nodejs/node#24811

lxe · 2019-01-10T00:06:51Z

Thanks for this!

This commit adds http_parser_set_max_header_size() to the http-parser for overriding the compile time maximum HTTP header size. PR-URL: nodejs#24811 Fixes: nodejs#24692 Refs: nodejs/http-parser#453 Reviewed-By: Anna Henningsen <[email protected]> Reviewed-By: Matteo Collina <[email protected]> Reviewed-By: Myles Borins <[email protected]> Reviewed-By: Michael Dawson <[email protected]> Reviewed-By: Сковорода Никита Андреевич <[email protected]> Reviewed-By: James M Snell <[email protected]> Reviewed-By: Jeremiah Senkpiel <[email protected]>

This commit adds support for uint64_t option parsing. PR-URL: nodejs#24811 Reviewed-By: Anna Henningsen <[email protected]> Reviewed-By: Colin Ihrig <[email protected]> Reviewed-By: Myles Borins <[email protected]> Reviewed-By: Michael Dawson <[email protected]> Reviewed-By: Сковорода Никита Андреевич <[email protected]> Reviewed-By: James M Snell <[email protected]> Reviewed-By: Jeremiah Senkpiel <[email protected]>

Allow the maximum size of HTTP headers to be overridden from the command line. co-authored-by: Matteo Collina <[email protected]> PR-URL: nodejs#24811 Fixes: nodejs#24692 Reviewed-By: Anna Henningsen <[email protected]> Reviewed-By: Myles Borins <[email protected]> Reviewed-By: Michael Dawson <[email protected]> Reviewed-By: Сковорода Никита Андреевич <[email protected]> Reviewed-By: James M Snell <[email protected]> Reviewed-By: Jeremiah Senkpiel <[email protected]>

The 6.15.0 security release introduced some unexpected breakages on the 6.x release line. This is a special release to fix a regression in the HTTP binary upgrade response body and add a missing CLI flag to adjust the max header size of the http parser. Notable changes: * cli: - add --max-http-header-size flag (cjihrig) nodejs#24811 * http: - add maxHeaderSize property (cjihrig) nodejs#24860 PR-URL: nodejs#25178

The 8.14.0 security release introduced some unexpected breakages on the 8.x release line. This is a special release to fix a regression in the HTTP binary upgrade response body and add a missing CLI flag to adjust the max header size of the http parser. Notable changes: * cli: - add --max-http-header-size flag (cjihrig) nodejs#24811 * http: - add maxHeaderSize property (cjihrig) nodejs#24860 PR-URL: nodejs#25177

The 10.14.0 security release introduced some unexpected breakages on the 10.x release line. This is a special release to fix a regression in the HTTP binary upgrade response body and add a missing CLI flag to adjust the max header size of the http parser. Notable Changes: * cli: - add --max-http-header-size flag (cjihrig) nodejs#24811 * http: - add maxHeaderSize property (cjihrig) nodejs#24860 PR-URL: nodejs#25176

Notable Changes: * cli: - add --max-http-header-size flag (cjihrig) nodejs#24811 * crypto: - always accept certificates as public keys (Tobias Nießen) nodejs#24234 - add key object API (Tobias Nießen) [nodejs#24234](nodejs#24234) - update root certificates (Sam Roberts) nodejs#25113 * deps: - upgrade to libuv 1.24.1 (cjihrig) nodejs#25078 - upgrade npm to 6.5.0 (Audrey Eschright) nodejs#24734 * http: - add maxHeaderSize property (cjihrig) nodejs#24860 PR-URL: nodejs#25175

pharatesid · 2019-01-30T06:47:47Z

how do i use this feature and configure the http header size

losdevnull · 2019-01-30T10:21:13Z

Does this apply to https as well? It does not seem to work with https.createServer.

mcollina · 2019-02-02T14:15:38Z

@losdevnull it should! If not please open an new issue with a script to reproduce and tag me.

losdevnull · 2019-02-02T14:19:23Z

@mcollina never mind.. it turns out that we did not set the arg correctly in command line by appending it in the end instead of in front of the app to be started. After fix that it worked as expected for https. Thanks!

JSMike · 2019-02-04T18:27:41Z

src/node_http_parser_impl.h

@@ -916,6 +913,14 @@ const parser_settings_t Parser::settings = {
 };


+#ifndef NODE_EXPERIMENTAL_HTTP
+void InitMaxHttpHeaderSizeOnce() {
+  const uint32_t max_http_header_size = per_process_opts->max_http_header_size;


Hi @cjihrig I tried to dig but couldn't figure out the answer.

Does per_process get populated with .npmrc or system environment values? Or can this only be set with the CLI option?

You can configure this via the CLI option or NODE_OPTIONS environment variable (search the tests in this PR for NODE_OPTIONS).

mike503 · 2019-02-22T00:15:38Z

It would be great if node responded with an HTTP 413 “Request Header fields too large” (or something similar) is this was encountered instead of behaving like it is crashing (or empty return) or timing out (with nginx in front it will result in a 502/400 based on the node version or a 504 timeout)

richardlau · 2019-02-22T01:53:42Z

It would be great if node responded with an HTTP 413 “Request Header fields too large” (or something similar) is this was encountered instead of behaving like it is crashing (or empty return) or timing out (with nginx in front it will result in a 502/400 based on the node version or a 504 timeout)

See #25528 and #25605 which changes the response to 431.

nodejs-github-bot added c++ Issues and PRs that require attention from people who are familiar with C++. lib / src Issues and PRs related to general changes in the lib or src directory. labels Dec 3, 2018

richardlau mentioned this pull request Dec 3, 2018

build: make HTTP_MAX_HEADER_SIZE configurable #24716

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Support Travis VM Infrastructure pelias/schema#337

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cjihrig force-pushed the max-headers-size branch 3 times, most recently from d4a3a0a to 3275c64 Compare December 5, 2018 23:02

cjihrig mentioned this pull request Dec 6, 2018

http: add maxHeaderSize property #24860

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hyj1991 pushed a commit to aliyun-node/bug-versions that referenced this pull request Jan 8, 2019

feat: fix unexpected breakages which the node-v8.14.0 security releas…

c993fe4

…e introduced - more detail: nodejs/node#24811

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feat: fix unexpected breakages which 8.14.0 security release introduced cnpm/bug-versions#34

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hyj1991 pushed a commit to aliyun-node/bug-versions that referenced this pull request Jan 8, 2019

feat: fix unexpected breakages which node-v8.14.0 security release in…

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…troduced - Detail: nodejs/node#24811

hyj1991 pushed a commit to aliyun-node/bug-versions that referenced this pull request Jan 8, 2019

fix: unexpected breakages which node-v8.14.0 security release introduced

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- Detail: nodejs/node#24811

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fix: unexpected breakages which node-v8.14.0 security release introduced

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- Detail: nodejs/node#24811

figureone mentioned this pull request Jan 9, 2019

Upstream prematurely closed connection while reading response header from upstream LearningLocker/learninglocker#1166

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hoffmc mentioned this pull request Jan 12, 2019

Enable setting max http header size via environment variable cloudfoundry/nodejs-buildpack#176

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How to set max http header size in create react app facebook/create-react-app#6582

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Electron v5.0.10 cypress-io/cypress#4720

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431 status code on stubbed XHR requests with large response in 3.5.0 cypress-io/cypress#5431

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sam-github mentioned this pull request Nov 20, 2019

http: llhttp opt-in insecure HTTP header parsing #30567

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Silent 400 error when headers exceed 8KiB RedHatInsights/insights-proxy#38

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cli: add --max-http-header-size flag #24811

cli: add --max-http-header-size flag #24811

cjihrig commented Dec 3, 2018 •

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cli: add --max-http-header-size flag #24811

cli: add --max-http-header-size flag #24811

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