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core/certmanager.lua @ 6600:b1c84d220c40 0.9.8
mod_s2s: to/from attributes are required on s2s stream headers. Set them to '' when not available. Fixes #468.
author | Matthew Wild <mwild1@gmail.com> |
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date | Tue, 24 Mar 2015 16:03:37 +0000 (2015-03-24) |
parent | 6496:e4b998ffc922 |
child | 6501:71b6e8b48a12 |
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-- Prosody IM -- Copyright (C) 2008-2010 Matthew Wild -- Copyright (C) 2008-2010 Waqas Hussain -- -- This project is MIT/X11 licensed. Please see the -- COPYING file in the source package for more information. -- local configmanager = require "core.configmanager"; local log = require "util.logger".init("certmanager"); local ssl = ssl; local ssl_newcontext = ssl and ssl.newcontext; local tostring = tostring; local type = type; local io_open = io.open; local prosody = prosody; local resolve_path = configmanager.resolve_relative_path; local config_path = prosody.paths.config; local luasec_has_noticket, luasec_has_verifyext, luasec_has_no_compression; if ssl then local luasec_major, luasec_minor = ssl._VERSION:match("^(%d+)%.(%d+)"); luasec_has_noticket = tonumber(luasec_major)>0 or tonumber(luasec_minor)>=4; luasec_has_verifyext = tonumber(luasec_major)>0 or tonumber(luasec_minor)>=5; luasec_has_no_compression = tonumber(luasec_major)>0 or tonumber(luasec_minor)>=5; end module "certmanager" -- Global SSL options if not overridden per-host local default_ssl_config = configmanager.get("*", "ssl"); local default_capath = "/etc/ssl/certs"; local default_verify = (ssl and ssl.x509 and { "peer", "client_once", }) or "none"; local default_options = { "no_sslv2", "no_sslv3", "cipher_server_preference", luasec_has_noticket and "no_ticket" or nil }; local default_verifyext = { "lsec_continue", "lsec_ignore_purpose" }; if ssl and not luasec_has_verifyext and ssl.x509 then -- COMPAT mw/luasec-hg for i=1,#default_verifyext do -- Remove lsec_ prefix default_verify[#default_verify+1] = default_verifyext[i]:sub(6); end end if luasec_has_no_compression and configmanager.get("*", "ssl_compression") ~= true then default_options[#default_options+1] = "no_compression"; end if luasec_has_no_compression then -- Has no_compression? Then it has these too... default_options[#default_options+1] = "single_dh_use"; default_options[#default_options+1] = "single_ecdh_use"; end function create_context(host, mode, user_ssl_config) user_ssl_config = user_ssl_config or default_ssl_config; if not ssl then return nil, "LuaSec (required for encryption) was not found"; end if not user_ssl_config then return nil, "No SSL/TLS configuration present for "..host; end local ssl_config = { mode = mode; protocol = user_ssl_config.protocol or "sslv23"; key = resolve_path(config_path, user_ssl_config.key); password = user_ssl_config.password or function() log("error", "Encrypted certificate for %s requires 'ssl' 'password' to be set in config", host); end; certificate = resolve_path(config_path, user_ssl_config.certificate); capath = resolve_path(config_path, user_ssl_config.capath or default_capath); cafile = resolve_path(config_path, user_ssl_config.cafile); verify = user_ssl_config.verify or default_verify; verifyext = user_ssl_config.verifyext or default_verifyext; options = user_ssl_config.options or default_options; depth = user_ssl_config.depth; curve = user_ssl_config.curve or "secp384r1"; ciphers = user_ssl_config.ciphers or "HIGH+kEDH:HIGH+kEECDH:HIGH:!PSK:!SRP:!3DES:!aNULL"; dhparam = user_ssl_config.dhparam; }; -- LuaSec expects dhparam to be a callback that takes two arguments. -- We ignore those because it is mostly used for having a separate -- set of params for EXPORT ciphers, which we don't have by default. if type(ssl_config.dhparam) == "string" then local f, err = io_open(resolve_path(config_path, ssl_config.dhparam)); if not f then return nil, "Could not open DH parameters: "..err end local dhparam = f:read("*a"); f:close(); ssl_config.dhparam = function() return dhparam; end end local ctx, err = ssl_newcontext(ssl_config); -- COMPAT: LuaSec 0.4.1 ignores the cipher list from the config, so we have to take -- care of it ourselves... if ctx and ssl_config.ciphers then local success; success, err = ssl.context.setcipher(ctx, ssl_config.ciphers); if not success then ctx = nil; end end if not ctx then err = err or "invalid ssl config" local file = err:match("^error loading (.-) %("); if file then if file == "private key" then file = ssl_config.key or "your private key"; elseif file == "certificate" then file = ssl_config.certificate or "your certificate file"; end local reason = err:match("%((.+)%)$") or "some reason"; if reason == "Permission denied" then reason = "Check that the permissions allow Prosody to read this file."; elseif reason == "No such file or directory" then reason = "Check that the path is correct, and the file exists."; elseif reason == "system lib" then reason = "Previous error (see logs), or other system error."; elseif reason == "(null)" or not reason then reason = "Check that the file exists and the permissions are correct"; else reason = "Reason: "..tostring(reason):lower(); end log("error", "SSL/TLS: Failed to load '%s': %s (for %s)", file, reason, host); else log("error", "SSL/TLS: Error initialising for %s: %s", host, err); end end return ctx, err; end function reload_ssl_config() default_ssl_config = configmanager.get("*", "ssl"); end prosody.events.add_handler("config-reloaded", reload_ssl_config); return _M;