2 -- Copyright (C) 2008-2010 Matthew Wild
3 -- Copyright (C) 2008-2010 Waqas Hussain
5 -- This project is MIT/X11 licensed. Please see the
6 -- COPYING file in the source package for more information.
9 local configmanager = require "core.configmanager";
10 local log = require "util.logger".init("certmanager");
12 local ssl_newcontext = ssl and ssl.newcontext;
14 local tostring = tostring;
17 local prosody = prosody;
18 local resolve_path = configmanager.resolve_relative_path;
19 local config_path = prosody.paths.config;
21 local luasec_has_noticket, luasec_has_verifyext, luasec_has_no_compression;
23 local luasec_major, luasec_minor = ssl._VERSION:match("^(%d+)%.(%d+)");
24 luasec_has_noticket = tonumber(luasec_major)>0 or tonumber(luasec_minor)>=4;
25 luasec_has_verifyext = tonumber(luasec_major)>0 or tonumber(luasec_minor)>=5;
26 luasec_has_no_compression = tonumber(luasec_major)>0 or tonumber(luasec_minor)>=5;
31 -- Global SSL options if not overridden per-host
32 local global_ssl_config = configmanager.get("*", "ssl");
34 local core_defaults = {
35 capath = "/etc/ssl/certs";
37 verify = (ssl and ssl.x509 and { "peer", "client_once", }) or "none";
38 options = { "no_sslv2", luasec_has_noticket and "no_ticket" or nil };
39 verifyext = { "lsec_continue", "lsec_ignore_purpose" };
42 local path_options = { -- These we pass through resolve_path()
43 key = true, certificate = true, cafile = true, capath = true
46 if ssl and not luasec_has_verifyext and ssl.x509 then
47 -- COMPAT mw/luasec-hg
48 for i=1,#core_defaults.verifyext do -- Remove lsec_ prefix
49 core_defaults.verify[#core_defaults.verify+1] = core_defaults.verifyext[i]:sub(6);
53 if luasec_has_no_compression and configmanager.get("*", "ssl_compression") ~= true then
54 core_defaults.options[#core_defaults.options+1] = "no_compression";
57 function create_context(host, mode, user_ssl_config)
58 user_ssl_config = user_ssl_config or {}
59 user_ssl_config.mode = mode;
61 if not ssl then return nil, "LuaSec (required for encryption) was not found"; end
63 if global_ssl_config then
64 for option,default_value in pairs(global_ssl_config) do
65 if not user_ssl_config[option] then
66 user_ssl_config[option] = default_value;
70 for option,default_value in pairs(core_defaults) do
71 if not user_ssl_config[option] then
72 user_ssl_config[option] = default_value;
75 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;
76 for option in pairs(path_options) do
77 user_ssl_config[option] = user_ssl_config[option] and resolve_path(config_path, user_ssl_config[option]);
80 if not user_ssl_config.key then return nil, "No key present in SSL/TLS configuration for "..host; end
81 if not user_ssl_config.certificate then return nil, "No certificate present in SSL/TLS configuration for "..host; end
83 local ctx, err = ssl_newcontext(user_ssl_config);
85 -- COMPAT Older LuaSec ignores the cipher list from the config, so we have to take care
86 -- of it ourselves (W/A for #x)
87 if ctx and user_ssl_config.ciphers then
89 success, err = ssl.context.setcipher(ctx, user_ssl_config.ciphers);
90 if not success then ctx = nil; end
94 err = err or "invalid ssl config"
95 local file = err:match("^error loading (.-) %(");
97 if file == "private key" then
98 file = user_ssl_config.key or "your private key";
99 elseif file == "certificate" then
100 file = user_ssl_config.certificate or "your certificate file";
102 local reason = err:match("%((.+)%)$") or "some reason";
103 if reason == "Permission denied" then
104 reason = "Check that the permissions allow Prosody to read this file.";
105 elseif reason == "No such file or directory" then
106 reason = "Check that the path is correct, and the file exists.";
107 elseif reason == "system lib" then
108 reason = "Previous error (see logs), or other system error.";
109 elseif reason == "(null)" or not reason then
110 reason = "Check that the file exists and the permissions are correct";
112 reason = "Reason: "..tostring(reason):lower();
114 log("error", "SSL/TLS: Failed to load '%s': %s (for %s)", file, reason, host);
116 log("error", "SSL/TLS: Error initialising for %s: %s", host, err);
122 function reload_ssl_config()
123 global_ssl_config = configmanager.get("*", "ssl");
126 prosody.events.add_handler("config-reloaded", reload_ssl_config);