http: add request.flush() method

Forcibly flushes the request headers.  You need this with long-lived
HTTP connections where the first data isn't written until the connection
has been established (think: tunneling requests over HTTP CONNECT.)

Fixes #7296.

Signed-off-by: Fedor Indutny <fedor@indutny.com>

1 files changed, 37 insertions, 0 deletions

diff --git a/test/simple/test-http-flush.js b/test/simple/test-http-flush.js
new file mode 100644
index 0000000000..7da94e89dc
--- /dev/null
+++ b/test/simple/test-http-flush.js
@@ -0,0 +1,37 @@
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to permit
+// persons to whom the Software is furnished to do so, subject to the
+// following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+// USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+var common = require('../common');
+var assert = require('assert');
+var http = require('http');
+
+http.createServer(function(req, res) {
+  res.end('ok');
+  this.close();
+}).listen(function() {
+  var req = http.request({
+    method: 'POST',
+    host: this.address().address,
+    port: this.address().port,
+  });
+  req.flush();  // Flush the request headers.
+  req.flush();  // Should be idempotent.
+});