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;
16 local prosody = prosody;
17 local resolve_path = configmanager.resolve_relative_path;
18 local config_path = prosody.paths.config;
20 local luasec_has_noticket, luasec_has_verifyext, luasec_has_no_compression;
22 local luasec_major, luasec_minor = ssl._VERSION:match("^(%d+)%.(%d+)");
23 luasec_has_noticket = tonumber(luasec_major)>0 or tonumber(luasec_minor)>=4;
24 luasec_has_verifyext = tonumber(luasec_major)>0 or tonumber(luasec_minor)>=5;
25 luasec_has_no_compression = tonumber(luasec_major)>0 or tonumber(luasec_minor)>=5;
30 -- Global SSL options if not overridden per-host
31 local default_ssl_config = configmanager.get("*", "ssl");
32 local default_capath = "/etc/ssl/certs";
33 local default_verify = (ssl and ssl.x509 and { "peer", "client_once", }) or "none";
34 local default_options = { "no_sslv2", luasec_has_noticket and "no_ticket" or nil };
35 local default_verifyext = { "lsec_continue", "lsec_ignore_purpose" };
37 if ssl and not luasec_has_verifyext and ssl.x509 then
38 -- COMPAT mw/luasec-hg
39 for i=1,#default_verifyext do -- Remove lsec_ prefix
40 default_verify[#default_verify+1] = default_verifyext[i]:sub(6);
43 if luasec_has_no_compression and configmanager.get("*", "ssl_compression") ~= true then
44 default_options[#default_options+1] = "no_compression";
47 function create_context(host, mode, user_ssl_config)
48 user_ssl_config = user_ssl_config or default_ssl_config;
50 if not ssl then return nil, "LuaSec (required for encryption) was not found"; end
51 if not user_ssl_config then return nil, "No SSL/TLS configuration present for "..host; end
55 protocol = user_ssl_config.protocol or "sslv23";
56 key = resolve_path(config_path, user_ssl_config.key);
57 password = user_ssl_config.password or function() log("error", "Encrypted certificate for %s requires 'ssl' 'password' to be set in config", host); end;
58 certificate = resolve_path(config_path, user_ssl_config.certificate);
59 capath = resolve_path(config_path, user_ssl_config.capath or default_capath);
60 cafile = resolve_path(config_path, user_ssl_config.cafile);
61 verify = user_ssl_config.verify or default_verify;
62 verifyext = user_ssl_config.verifyext or default_verifyext;
63 options = user_ssl_config.options or default_options;
64 depth = user_ssl_config.depth;
67 local ctx, err = ssl_newcontext(ssl_config);
69 -- LuaSec ignores the cipher list from the config, so we have to take care
70 -- of it ourselves (W/A for #x)
71 if ctx and user_ssl_config.ciphers then
73 success, err = ssl.context.setcipher(ctx, user_ssl_config.ciphers);
74 if not success then ctx = nil; end
78 err = err or "invalid ssl config"
79 local file = err:match("^error loading (.-) %(");
81 if file == "private key" then
82 file = ssl_config.key or "your private key";
83 elseif file == "certificate" then
84 file = ssl_config.certificate or "your certificate file";
86 local reason = err:match("%((.+)%)$") or "some reason";
87 if reason == "Permission denied" then
88 reason = "Check that the permissions allow Prosody to read this file.";
89 elseif reason == "No such file or directory" then
90 reason = "Check that the path is correct, and the file exists.";
91 elseif reason == "system lib" then
92 reason = "Previous error (see logs), or other system error.";
93 elseif reason == "(null)" or not reason then
94 reason = "Check that the file exists and the permissions are correct";
96 reason = "Reason: "..tostring(reason):lower();
98 log("error", "SSL/TLS: Failed to load '%s': %s (for %s)", file, reason, host);
100 log("error", "SSL/TLS: Error initialising for %s: %s", host, err);
106 function reload_ssl_config()
107 default_ssl_config = configmanager.get("*", "ssl");
110 prosody.events.add_handler("config-reloaded", reload_ssl_config);