return 414 for URI length violations

There's an HTTP status code allocated for it in
<http://www.iana.org/assignments/http-status-codes>, so
return that instead of 400.

1 files changed, 7 insertions, 0 deletions

diff --git a/ext/unicorn_http/global_variables.h b/ext/unicorn_http/global_variables.h
index cdbc42d..cda7f24 100644
--- a/ext/unicorn_http/global_variables.h
+++ b/ext/unicorn_http/global_variables.h
@@ -1,6 +1,7 @@
 #ifndef global_variables_h
 #define global_variables_h
 static VALUE eHttpParserError;
+static VALUE eRequestURITooLongError;
 
 static VALUE g_rack_url_scheme;
 static VALUE g_request_method;
@@ -36,6 +37,7 @@ static VALUE g_http_11;
     "HTTP element " # N  " is longer than the " # length " allowed length."
 
 NORETURN(static void parser_error(const char *));
+NORETURN(static void raise_414(const char *));
 
 /**
  * Validates the max length of given input and throws an HttpParserError
@@ -46,6 +48,11 @@ NORETURN(static void parser_error(const char *));
     parser_error(MAX_##N##_LENGTH_ERR); \
 } while (0)
 
+#define VALIDATE_MAX_URI_LENGTH(len, N) do { \
+  if (len > MAX_##N##_LENGTH) \
+    raise_414(MAX_##N##_LENGTH_ERR); \
+} while (0)
+
 /** Defines global strings in the init method. */
 #define DEF_GLOBAL(N, val) do { \
   g_##N = rb_obj_freeze(rb_str_new(val, sizeof(val) - 1)); \