From 6470f4c6c8ea434eb80ff76eca3b67de17d7a45d Mon Sep 17 00:00:00 2001
From: Trivikram Kamat <trivikr.dev@gmail.com>
Date: Thu, 28 Sep 2017 23:22:50 -0500
Subject: [PATCH] http2: setting shuttingDown=true after validation

In shutdown(), shuttingDown was set to true before validating options.
If invalid options are passed, error was thrown and server remained in
shuttingDown state. This code change fixes it.

PR-URL: https://github.com/nodejs/node/pull/15676
Fixes: https://github.com/nodejs/node/issues/15666
Refs: https://github.com/nodejs/node/issues/14985
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
---
 lib/internal/http2/core.js                    |  6 +-
 ...st-http2-server-shutdown-options-errors.js | 61 +++++++++++++++++++
 2 files changed, 64 insertions(+), 3 deletions(-)
 create mode 100644 test/parallel/test-http2-server-shutdown-options-errors.js

diff --git a/lib/internal/http2/core.js b/lib/internal/http2/core.js
index 56b99cd701..b85ee44130 100644
--- a/lib/internal/http2/core.js
+++ b/lib/internal/http2/core.js
@@ -983,9 +983,6 @@ class Http2Session extends EventEmitter {
     if (this[kState].shutdown || this[kState].shuttingDown)
       return;
 
-    debug(`[${sessionName(this[kType])}] initiating shutdown`);
-    this[kState].shuttingDown = true;
-
     const type = this[kType];
 
     if (typeof options === 'function') {
@@ -1023,6 +1020,9 @@ class Http2Session extends EventEmitter {
                                  options.lastStreamID);
     }
 
+    debug(`[${sessionName(this[kType])}] initiating shutdown`);
+    this[kState].shuttingDown = true;
+
     if (callback) {
       this.on('shutdown', callback);
     }
diff --git a/test/parallel/test-http2-server-shutdown-options-errors.js b/test/parallel/test-http2-server-shutdown-options-errors.js
new file mode 100644
index 0000000000..2bf2b47dd7
--- /dev/null
+++ b/test/parallel/test-http2-server-shutdown-options-errors.js
@@ -0,0 +1,61 @@
+'use strict';
+
+const common = require('../common');
+if (!common.hasCrypto)
+  common.skip('missing crypto');
+const http2 = require('http2');
+
+const server = http2.createServer();
+
+const optionsToTest = {
+  opaqueData: 'Uint8Array',
+  graceful: 'boolean',
+  errorCode: 'number',
+  lastStreamID: 'number'
+};
+
+const types = {
+  boolean: true,
+  number: 1,
+  object: {},
+  array: [],
+  null: null,
+  Uint8Array: Buffer.from([0x1, 0x2, 0x3, 0x4, 0x5])
+};
+
+server.on(
+  'stream',
+  common.mustCall((stream) => {
+    Object.keys(optionsToTest).forEach((option) => {
+      Object.keys(types).forEach((type) => {
+        if (type === optionsToTest[option]) {
+          return;
+        }
+        common.expectsError(
+          () =>
+            stream.session.shutdown(
+              { [option]: types[type] },
+              common.mustNotCall()
+            ),
+          {
+            type: TypeError,
+            code: 'ERR_INVALID_OPT_VALUE',
+            message: `The value "${String(types[type])}" is invalid ` +
+            `for option "${option}"`
+          }
+        );
+      });
+    });
+    stream.session.destroy();
+  })
+);
+
+server.listen(
+  0,
+  common.mustCall(() => {
+    const client = http2.connect(`http://localhost:${server.address().port}`);
+    const req = client.request();
+    req.resume();
+    req.on('end', common.mustCall(() => server.close()));
+  })
+);