Changeset

8269:25237002aba4

mod_limits: Handle fractional outstanding balance values (caused by e3f7b6fa46ba) Fractional values were passed to string.sub() when doing buffer manipulations, and caused random bytes to be skipped in the stream.
author Matthew Wild <mwild1@gmail.com>
date Tue, 26 Sep 2017 17:48:33 +0100
parents 8267:42fad8465537
children 8270:8b470cf497b7 8272:64165865b131
files plugins/mod_limits.lua
diffstat 1 files changed, 2 insertions(+), 0 deletions(-) [+]
line wrap: on
line diff
--- a/plugins/mod_limits.lua	Mon Sep 25 23:12:47 2017 +0100
+++ b/plugins/mod_limits.lua	Tue Sep 26 17:48:33 2017 +0100
@@ -4,6 +4,7 @@
 local filters = require "util.filters";
 local throttle = require "util.throttle";
 local timer = require "util.timer";
+local ceil = math.ceil;
 
 local limits_cfg = module:get_option("limits", {});
 local limits_resolution = module:get_option_number("limits_resolution", 1);
@@ -55,6 +56,7 @@
 		local ok, balance, outstanding = throttle:poll(#bytes, true);
 		if not ok then
 			session.log("debug", "Session over rate limit (%d) with %d (by %d), pausing", throttle.max, #bytes, outstanding);
+			outstanding = ceil(outstanding);
 			session.conn:pause(); -- Read no more data from the connection until there is no outstanding data
 			local outstanding_data = bytes:sub(-outstanding);
 			bytes = bytes:sub(1, #bytes-outstanding);