+-- 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 setmetatable = setmetatable;
+local setmetatable, tostring = setmetatable, tostring;
local prosody = prosody;
+local resolve_path = configmanager.resolve_relative_path;
+local config_path = prosody.paths.config;
module "certmanager"
--- These are the defaults if not overridden in the config
-local default_ssl_ctx = { mode = "client", protocol = "sslv23", capath = "/etc/ssl/certs", verify = "none", options = "no_sslv2"; };
-local default_ssl_ctx_in = { mode = "server", protocol = "sslv23", capath = "/etc/ssl/certs", verify = "none", options = "no_sslv2"; };
-
-local default_ssl_ctx_mt = { __index = default_ssl_ctx };
-local default_ssl_ctx_in_mt = { __index = default_ssl_ctx_in };
-
-- Global SSL options if not overridden per-host
local default_ssl_config = configmanager.get("*", "core", "ssl");
+local default_capath = "/etc/ssl/certs";
+local default_verify = (ssl and ssl.x509 and { "peer", "client_once", "continue", "ignore_purpose" }) or "none";
+local default_options = { "no_sslv2" };
+
+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;
+ 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;
+ options = user_ssl_config.options or default_options;
+ ciphers = user_ssl_config.ciphers;
+ depth = user_ssl_config.depth;
+ };
-function get_context(host, mode, config)
- local ssl_config = config and config.core.ssl or default_ssl_config;
- if ssl and ssl_config then
- return ssl_newcontext(setmetatable(ssl_config, mode == "client" and default_ssl_ctx_mt or default_ssl_ctx_in_mt));
+ local ctx, err = ssl_newcontext(ssl_config);
+ 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", file, reason);
+ else
+ log("error", "SSL/TLS: Error initialising for host %s: %s", host, err );
+ end
end
- return nil;
+ return ctx, err;
end
function reload_ssl_config()
- default_ssl_config = config.get("*", "core", "ssl");
+ default_ssl_config = configmanager.get("*", "core", "ssl");
end
prosody.events.add_handler("config-reloaded", reload_ssl_config);