From 728b0ab2f3b92b5972a9065c1884ea46322e39f5 Mon Sep 17 00:00:00 2001
From: Brian Reavis <brian@thirdroute.com>
Date: Sat, 15 Aug 2015 22:42:09 -0600
Subject: [PATCH] Allow providers to customize status code on error.

---
 lib/TileRequestHandler.js  |  2 +-
 test/TileRequestHandler.js | 16 ++++++++++++++++
 2 files changed, 17 insertions(+), 1 deletion(-)

diff --git a/lib/TileRequestHandler.js b/lib/TileRequestHandler.js
index 3bd6790..7cd2dec 100755
--- a/lib/TileRequestHandler.js
+++ b/lib/TileRequestHandler.js
@@ -185,7 +185,7 @@ TileRequestHandler.prototype['GET'] = function(server, req, callback) {
 				return done(404, BUFFER_NOPROVIDER, {});
 			}
 			self.provider.serve(server, req, function(err, buffer, headers) {
-				if (err) return done(500, new Buffer(err.message || err, 'utf8'), {});
+				if (err) return done(err.statusCode || 500, new Buffer(err.message || err, 'utf8'), {});
 				renderedHeaders = headers || {};
 				renderedBuffer = buffer;
 				setImmediate(callback);
diff --git a/test/TileRequestHandler.js b/test/TileRequestHandler.js
index f29ee4d..b5b9e26 100755
--- a/test/TileRequestHandler.js
+++ b/test/TileRequestHandler.js
@@ -406,6 +406,22 @@ describe('TileRequestHandler', function() {
 				done();
 			});
 		});
+		it('should return statusCode attached to provider error if available', function(done) {
+			var mockServer = new TileServer();
+			var mockRequest = TileRequest.parse('/layer/1/2/3/tile.png');
+			var handler = new TileRequestHandler();
+			handler.use({
+				serve: function(server, req, callback) {
+					var err = new Error('My error');
+					err.statusCode = 999;
+					callback(err);
+				}
+			});
+			handler.GET(mockServer, mockRequest, function(status, buffer, headers) {
+				assert.equal(status, 999);
+				done();
+			});
+		});
 		it('should skip transforms if provider fails', function(done) {
 			var mockServer = new TileServer();
 			var mockRequest = TileRequest.parse('/layer/1/2/3/tile.png');