HI, I received URL from which i need to extract several parameters, I do that using urlp in lua. Values of parameters are urlencoded. And I notice something strange : urlp seems to get only the first part of the value when the 2 char “;+” or “+;” are in the value of the parameter.
From the php point of view, using http://php.net/manual/en/function.urlencode.php , the 2 char “;+” or “+;” is valid in an urlencoded string. Here are 2 tests URL and the dumped value from lua: /dump_headers.php?p1=value1&ua=word1+;word2&otherparam=test [info] 341/090330 (130491) : ua=word1+ The dumped value should be : word1+;word2 /dump_headers.php?p1=value1&ua=word1;+word2&otherparam=test [info] 341/090951 (130491) : ua=word1 The dumped value should be : word1;+word2 Here is the haproxy config file (I removed everything not related to my question) : global debug # lua file lua-load url.lua defaults mode http frontend fe bind :80 acl testurl url_beg /dump_headers.php http-request lua.logValue if testurl use_backend beok backend beok server mysrv 127.0.0.1:8080 check inter 1000ms fall 3 rise 1 weight 100 Here is the lua file : core.register_action("logValue", {"http-req"}, function(txn) local var = txn.f:urlp("ua"); core.Info("ua=" .. var); end) haproxy -vv HA-Proxy version 1.6.2 2015/11/03 Copyright 2000-2015 Willy Tarreau <[email protected]> Build options : TARGET = linux2628 CPU = generic CC = gcc CFLAGS = -O2 -g -fno-strict-aliasing -Wdeclaration-after-statement OPTIONS = USE_ZLIB=1 USE_OPENSSL=1 USE_LUA=yes USE_DEVICEATLAS=1 USE_PCRE=1 Default settings : maxconn = 2000, bufsize = 16384, maxrewrite = 1024, maxpollevents = 200 Encrypted password support via crypt(3): yes Built with zlib version : 1.2.3 Compression algorithms supported : identity("identity"), deflate("deflate"), raw-deflate("deflate"), gzip("gzip") Built with OpenSSL version : OpenSSL 1.0.2d 9 Jul 2015 Running on OpenSSL version : OpenSSL 1.0.2d 9 Jul 2015 OpenSSL library supports TLS extensions : yes OpenSSL library supports SNI : yes OpenSSL library supports prefer-server-ciphers : yes Built with PCRE version : 7.8 2008-09-05 PCRE library supports JIT : no (USE_PCRE_JIT not set) Built with Lua version : Lua 5.3.1 Built with transparent proxy support using: IP_TRANSPARENT IPV6_TRANSPARENT IP_FREEBIND Available polling systems : epoll : pref=300, test result OK poll : pref=200, test result OK select : pref=150, test result OK Total: 3 (3 usable), will use epoll. Running on centos 6. I notice the same thing with haproxy 1.6.1 and lua 5.3.1 or 5.3.0 Note : in the frontend, if I use : http-request set-header X-debugua %[urlp(ua)] I get the same value as I get from Lua. Can you tell me if I do something the wrong way or if it is a bug or if it is intended ? Best regards Laurent
