Normalize HTTP headers.

"Content-Length" becomes "content-length".

lib/http.js

@@ -109,11 +109,8 @@ exports.parseUri.options = {
 };
 
 
-var connection_expression = /Connection/i;
-var transfer_encoding_expression = /Transfer-Encoding/i;
 var close_expression = /close/i;
 var chunk_expression = /chunk/i;
-var content_length_expression = /Content-Length/i;
 
 
 /* Abstract base class for ServerRequest and ClientResponse. */
@@ -245,15 +242,15 @@ OutgoingMessage.prototype.sendHeaderLines = function (first_line, headers) {
 
     message_header += field + ": " + value + CRLF;
 
-    if (connection_expression.exec(field)) {
+    if ("connection" === field) {
       sent_connection_header = true;
       if (close_expression.exec(value)) this.closeOnFinish = true;
 
-    } else if (transfer_encoding_expression.exec(field)) {
+    } else if ("transfer-encoding" === field) {
       sent_transfer_encoding_header = true;
       if (chunk_expression.exec(value)) this.chunked_encoding = true;
 
-    } else if (content_length_expression.exec(field)) {
+    } else if ("content-length" === field) {
       sent_content_length_header = true;
 
     }

src/http.cc

@@ -128,12 +128,28 @@ HTTPConnection::on_fragment (http_parser *parser, const char *buf, size_t len)
   return 0;
 }
 
+const static char normalizer[] =
+  "\0------------------------------"
+  "-----------------0123456789-----"
+  "--abcdefghijklmnopqrstuvwxyz----"
+  "--abcdefghijklmnopqrstuvwxyz----"
+  "--------------------------------"
+  "--------------------------------"
+  "--------------------------------"
+  "--------------------------------";
+
 int
 HTTPConnection::on_header_field (http_parser *parser, const char *buf, size_t len)
 {
   HandleScope scope;
   HTTPConnection *connection = static_cast<HTTPConnection*>(parser->data);
   assert(connection->attached_);
+
+  // NORMALIZE
+  size_t i;
+  char *nonconstbuf = (char*)buf; // FIXME
+  for (i = 0; i < len; i++) { nonconstbuf[i] = normalizer[buf[i]]; }
+
   Local<Value> argv[1] = { String::New(buf, len) };
   connection->Emit("headerField", 1, argv);
   return 0;
@@ -145,6 +161,7 @@ HTTPConnection::on_header_value (http_parser *parser, const char *buf, size_t le
   HandleScope scope;
   HTTPConnection *connection = static_cast<HTTPConnection*>(parser->data);
   assert(connection->attached_);
+
   Local<Value> argv[1] = { String::New(buf, len) };
   connection->Emit("headerValue", 1, argv);
   return 0;

test/mjsunit/test-http.js

@@ -13,11 +13,11 @@ http.createServer(function (req, res) {
     assertEquals("/hello", req.uri.path);
 
     p(req.headers);
-    assertTrue("Accept" in req.headers);
+    assertTrue("accept" in req.headers);
-    assertEquals("*/*", req.headers["Accept"]);
+    assertEquals("*/*", req.headers["accept"]);
 
-    assertTrue("Foo" in req.headers);
+    assertTrue("foo" in req.headers);
-    assertEquals("bar", req.headers["Foo"]);
+    assertEquals("bar", req.headers["foo"]);
   }
 
   if (responses_sent == 1) {