From 37374ae95e615cc02da0c64a43a7a30b7156fea4 Mon Sep 17 00:00:00 2001 From: Kim Alvefur Date: Sun, 6 Jan 2019 10:39:33 +0100 Subject: util.http: Pre-generate urlencoding mappings (optimization) Function calls are more expensive than table lookups --- util/http.lua | 21 +++++++++++---------- 1 file changed, 11 insertions(+), 10 deletions(-) (limited to 'util/http.lua') diff --git a/util/http.lua b/util/http.lua index cfb89193..1730d4d4 100644 --- a/util/http.lua +++ b/util/http.lua @@ -6,24 +6,25 @@ -- local format, char = string.format, string.char; -local pairs, ipairs, tonumber = pairs, ipairs, tonumber; +local pairs, ipairs = pairs, ipairs; local t_insert, t_concat = table.insert, table.concat; +local url_codes = {}; +for i = 0, 255 do + local c = char(i); + local u = format("%%%02x", i); + url_codes[c] = u; + url_codes[u] = c; +end local function urlencode(s) - return s and (s:gsub("[^a-zA-Z0-9.~_-]", function (c) return format("%%%02x", c:byte()); end)); + return s and (s:gsub("[^a-zA-Z0-9.~_-]", url_codes)); end local function urldecode(s) - return s and (s:gsub("%%(%x%x)", function (c) return char(tonumber(c,16)); end)); + return s and (s:gsub("%%%x%x", url_codes)); end local function _formencodepart(s) - return s and (s:gsub("%W", function (c) - if c ~= " " then - return format("%%%02x", c:byte()); - else - return "+"; - end - end)); + return s and (urlencode(s):gsub("%%20", "+")); end local function formencode(form) -- cgit v1.2.3 From 3e30870220e8c617cda3a06b1c9d9054b346283c Mon Sep 17 00:00:00 2001 From: Kim Alvefur Date: Wed, 16 Jan 2019 13:53:04 +0100 Subject: util.http: Fix decoding of uppercase URL encoded chars Broken in 1af5106a2c34 --- util/http.lua | 1 + 1 file changed, 1 insertion(+) (limited to 'util/http.lua') diff --git a/util/http.lua b/util/http.lua index 1730d4d4..3852f91c 100644 --- a/util/http.lua +++ b/util/http.lua @@ -15,6 +15,7 @@ for i = 0, 255 do local u = format("%%%02x", i); url_codes[c] = u; url_codes[u] = c; + url_codes[u:upper()] = c; end local function urlencode(s) return s and (s:gsub("[^a-zA-Z0-9.~_-]", url_codes)); -- cgit v1.2.3