diff options
| -rw-r--r-- | core/certmanager.lua | 80 |
1 files changed, 68 insertions, 12 deletions
diff --git a/core/certmanager.lua b/core/certmanager.lua index 9dfb8f3a..8f1e1520 100644 --- a/core/certmanager.lua +++ b/core/certmanager.lua @@ -15,6 +15,7 @@ local tostring = tostring; local pairs = pairs; local type = type; local io_open = io.open; +local t_concat = table.concat; local prosody = prosody; local resolve_path = configmanager.resolve_relative_path; @@ -33,11 +34,19 @@ module "certmanager" -- Global SSL options if not overridden per-host local global_ssl_config = configmanager.get("*", "ssl"); +-- Built-in defaults local core_defaults = { capath = "/etc/ssl/certs"; - protocol = "sslv23"; + protocol = "tlsv1+"; verify = (ssl and ssl.x509 and { "peer", "client_once", }) or "none"; - options = { "no_sslv2", "no_sslv3", "cipher_server_preference", luasec_has_noticket and "no_ticket" or nil }; + options = { + cipher_server_preference = true; + no_ticket = luasec_has_noticket; + no_compression = luasec_has_no_compression and configmanager.get("*", "ssl_compression") ~= true; + -- Has no_compression? Then it has these too... + single_dh_use = luasec_has_no_compression; + single_ecdh_use = luasec_has_no_compression; + }; verifyext = { "lsec_continue", "lsec_ignore_purpose" }; curve = "secp384r1"; ciphers = "HIGH+kEDH:HIGH+kEECDH:HIGH:!PSK:!SRP:!3DES:!aNULL"; @@ -45,6 +54,9 @@ local core_defaults = { local path_options = { -- These we pass through resolve_path() key = true, certificate = true, cafile = true, capath = true, dhparam = true } +local set_options = { + options = true, verify = true, verifyext = true +} if ssl and not luasec_has_verifyext and ssl.x509 then -- COMPAT mw/luasec-hg @@ -53,14 +65,21 @@ if ssl and not luasec_has_verifyext and ssl.x509 then end end -if luasec_has_no_compression then -- Has no_compression? Then it has these too... - core_defaults.options[#core_defaults.options+1] = "single_dh_use"; - core_defaults.options[#core_defaults.options+1] = "single_ecdh_use"; - if configmanager.get("*", "ssl_compression") ~= true then - core_defaults.options[#core_defaults.options+1] = "no_compression"; +local function merge_set(t, o) + if type(t) ~= "table" then t = { t } end + for k,v in pairs(t) do + if v == true or v == false then + o[k] = v; + else + o[v] = true; + end end + return o; end +local protocols = { "sslv2", "sslv3", "tlsv1", "tlsv1_1", "tlsv1_2" }; +for i = 1, #protocols do protocols[protocols[i] .. "+"] = i - 1; end + function create_context(host, mode, user_ssl_config) user_ssl_config = user_ssl_config or {} user_ssl_config.mode = mode; @@ -69,25 +88,59 @@ function create_context(host, mode, user_ssl_config) if global_ssl_config then for option,default_value in pairs(global_ssl_config) do - if not user_ssl_config[option] then + if user_ssl_config[option] == nil then user_ssl_config[option] = default_value; end end end + for option,default_value in pairs(core_defaults) do - if not user_ssl_config[option] then + if user_ssl_config[option] == nil then user_ssl_config[option] = default_value; end end - user_ssl_config.password = user_ssl_config.password or function() log("error", "Encrypted certificate for %s requires 'ssl' 'password' to be set in config", host); end; + + local min_protocol = protocols[user_ssl_config.protocol]; + if min_protocol then + user_ssl_config.protocol = "sslv23"; + for i = min_protocol, 1, -1 do + user_ssl_config.options["no_"..protocols[i]] = true; + end + end + + for option in pairs(set_options) do + local merged = {}; + merge_set(core_defaults[option], merged); + merge_set(global_ssl_config[option], merged); + merge_set(user_ssl_config[option], merged); + local final_array = {}; + for opt, enable in pairs(merged) do + if enable then + final_array[#final_array+1] = opt; + end + end + user_ssl_config[option] = final_array; + end + + -- We can't read the password interactively when daemonized + user_ssl_config.password = user_ssl_config.password or + function() log("error", "Encrypted certificate for %s requires 'ssl' 'password' to be set in config", host); end; + for option in pairs(path_options) do if type(user_ssl_config[option]) == "string" then user_ssl_config[option] = resolve_path(config_path, user_ssl_config[option]); end end - if not user_ssl_config.key then return nil, "No key present in SSL/TLS configuration for "..host; end - if not user_ssl_config.certificate then return nil, "No certificate present in SSL/TLS configuration for "..host; end + -- Allow the cipher list to be a table + if type(user_ssl_config.ciphers) == "table" then + user_ssl_config.ciphers = t_concat(user_ssl_config.ciphers, ":") + end + + if mode == "server" then + if not user_ssl_config.key then return nil, "No key present in SSL/TLS configuration for "..host; end + if not user_ssl_config.certificate then return nil, "No certificate present in SSL/TLS configuration for "..host; end + end -- LuaSec expects dhparam to be a callback that takes two arguments. -- We ignore those because it is mostly used for having a separate @@ -141,6 +194,9 @@ end function reload_ssl_config() global_ssl_config = configmanager.get("*", "ssl"); + if luasec_has_no_compression then + core_defaults.options.no_compression = configmanager.get("*", "ssl_compression") ~= true; + end end prosody.events.add_handler("config-reloaded", reload_ssl_config); |