prosody
19ada596aec4
core/certmanager.lua

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core/certmanager.lua @ 6081:19ada596aec4

Merge 0.10->trunk
author Kim Alvefur <zash@zash.se>
date Tue, 15 Apr 2014 20:36:39 +0200
parent 6080:b7d1607df87d
child 6087:821756a862b0
comparison
equal deleted inserted replaced
6072:ce5428f6e3c3 6081:19ada596aec4
13 13
14 local tostring = tostring; 14 local tostring = tostring;
15 local pairs = pairs; 15 local pairs = pairs;
16 local type = type; 16 local type = type;
17 local io_open = io.open; 17 local io_open = io.open;
18 local t_concat = table.concat;
18 19
19 local prosody = prosody; 20 local prosody = prosody;
20 local resolve_path = configmanager.resolve_relative_path; 21 local resolve_path = configmanager.resolve_relative_path;
21 local config_path = prosody.paths.config; 22 local config_path = prosody.paths.config;
22 23
31 module "certmanager" 32 module "certmanager"
32 33
33 -- Global SSL options if not overridden per-host 34 -- Global SSL options if not overridden per-host
34 local global_ssl_config = configmanager.get("*", "ssl"); 35 local global_ssl_config = configmanager.get("*", "ssl");
35 36
37 -- Built-in defaults
36 local core_defaults = { 38 local core_defaults = {
37 capath = "/etc/ssl/certs"; 39 capath = "/etc/ssl/certs";
38 protocol = "sslv23"; 40 protocol = "tlsv1+";
39 verify = (ssl and ssl.x509 and { "peer", "client_once", }) or "none"; 41 verify = (ssl and ssl.x509 and { "peer", "client_once", }) or "none";
40 options = { "no_sslv2", "no_sslv3", "cipher_server_preference", luasec_has_noticket and "no_ticket" or nil }; 42 options = {
43 cipher_server_preference = true;
44 no_ticket = luasec_has_noticket;
45 no_compression = luasec_has_no_compression and configmanager.get("*", "ssl_compression") ~= true;
46 -- Has no_compression? Then it has these too...
47 single_dh_use = luasec_has_no_compression;
48 single_ecdh_use = luasec_has_no_compression;
49 };
41 verifyext = { "lsec_continue", "lsec_ignore_purpose" }; 50 verifyext = { "lsec_continue", "lsec_ignore_purpose" };
42 curve = "secp384r1"; 51 curve = "secp384r1";
43 ciphers = "HIGH+kEDH:HIGH+kEECDH:HIGH:!PSK:!SRP:!3DES:!aNULL"; 52 ciphers = "HIGH+kEDH:HIGH+kEECDH:HIGH:!PSK:!SRP:!3DES:!aNULL";
44 } 53 }
45 local path_options = { -- These we pass through resolve_path() 54 local path_options = { -- These we pass through resolve_path()
46 key = true, certificate = true, cafile = true, capath = true, dhparam = true 55 key = true, certificate = true, cafile = true, capath = true, dhparam = true
47 } 56 }
57 local set_options = {
58 options = true, verify = true, verifyext = true
59 }
48 60
49 if ssl and not luasec_has_verifyext and ssl.x509 then 61 if ssl and not luasec_has_verifyext and ssl.x509 then
50 -- COMPAT mw/luasec-hg 62 -- COMPAT mw/luasec-hg
51 for i=1,#core_defaults.verifyext do -- Remove lsec_ prefix 63 for i=1,#core_defaults.verifyext do -- Remove lsec_ prefix
52 core_defaults.verify[#core_defaults.verify+1] = core_defaults.verifyext[i]:sub(6); 64 core_defaults.verify[#core_defaults.verify+1] = core_defaults.verifyext[i]:sub(6);
53 end 65 end
54 end 66 end
55 67
56 if luasec_has_no_compression then -- Has no_compression? Then it has these too... 68 local function merge_set(t, o)
57 core_defaults.options[#core_defaults.options+1] = "single_dh_use"; 69 if type(t) ~= "table" then t = { t } end
58 core_defaults.options[#core_defaults.options+1] = "single_ecdh_use"; 70 for k,v in pairs(t) do
59 if configmanager.get("*", "ssl_compression") ~= true then 71 if v == true or v == false then
60 core_defaults.options[#core_defaults.options+1] = "no_compression"; 72 o[k] = v;
61 end 73 else
62 end 74 o[v] = true;
75 end
76 end
77 return o;
78 end
79
80 local protocols = { "sslv2", "sslv3", "tlsv1", "tlsv1_1", "tlsv1_2" };
81 for i = 1, #protocols do protocols[protocols[i] .. "+"] = i - 1; end
63 82
64 function create_context(host, mode, user_ssl_config) 83 function create_context(host, mode, user_ssl_config)
65 user_ssl_config = user_ssl_config or {} 84 user_ssl_config = user_ssl_config or {}
66 user_ssl_config.mode = mode; 85 user_ssl_config.mode = mode;
67 86
68 if not ssl then return nil, "LuaSec (required for encryption) was not found"; end 87 if not ssl then return nil, "LuaSec (required for encryption) was not found"; end
69 88
70 if global_ssl_config then 89 if global_ssl_config then
71 for option,default_value in pairs(global_ssl_config) do 90 for option,default_value in pairs(global_ssl_config) do
72 if not user_ssl_config[option] then 91 if user_ssl_config[option] == nil then
73 user_ssl_config[option] = default_value; 92 user_ssl_config[option] = default_value;
74 end 93 end
75 end 94 end
76 end 95 end
96
77 for option,default_value in pairs(core_defaults) do 97 for option,default_value in pairs(core_defaults) do
78 if not user_ssl_config[option] then 98 if user_ssl_config[option] == nil then
79 user_ssl_config[option] = default_value; 99 user_ssl_config[option] = default_value;
80 end 100 end
81 end 101 end
82 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; 102
103 local min_protocol = protocols[user_ssl_config.protocol];
104 if min_protocol then
105 user_ssl_config.protocol = "sslv23";
106 for i = min_protocol, 1, -1 do
107 user_ssl_config.options["no_"..protocols[i]] = true;
108 end
109 end
110
111 for option in pairs(set_options) do
112 local merged = {};
113 merge_set(core_defaults[option], merged);
114 merge_set(global_ssl_config[option], merged);
115 merge_set(user_ssl_config[option], merged);
116 local final_array = {};
117 for opt, enable in pairs(merged) do
118 if enable then
119 final_array[#final_array+1] = opt;
120 end
121 end
122 user_ssl_config[option] = final_array;
123 end
124
125 -- We can't read the password interactively when daemonized
126 user_ssl_config.password = user_ssl_config.password or
127 function() log("error", "Encrypted certificate for %s requires 'ssl' 'password' to be set in config", host); end;
128
83 for option in pairs(path_options) do 129 for option in pairs(path_options) do
84 if type(user_ssl_config[option]) == "string" then 130 if type(user_ssl_config[option]) == "string" then
85 user_ssl_config[option] = resolve_path(config_path, user_ssl_config[option]); 131 user_ssl_config[option] = resolve_path(config_path, user_ssl_config[option]);
86 end 132 end
87 end 133 end
88 134
89 if not user_ssl_config.key then return nil, "No key present in SSL/TLS configuration for "..host; end 135 -- Allow the cipher list to be a table
90 if not user_ssl_config.certificate then return nil, "No certificate present in SSL/TLS configuration for "..host; end 136 if type(user_ssl_config.ciphers) == "table" then
137 user_ssl_config.ciphers = t_concat(user_ssl_config.ciphers, ":")
138 end
139
140 if mode == "server" then
141 if not user_ssl_config.key then return nil, "No key present in SSL/TLS configuration for "..host; end
142 if not user_ssl_config.certificate then return nil, "No certificate present in SSL/TLS configuration for "..host; end
143 end
91 144
92 -- LuaSec expects dhparam to be a callback that takes two arguments. 145 -- LuaSec expects dhparam to be a callback that takes two arguments.
93 -- We ignore those because it is mostly used for having a separate 146 -- We ignore those because it is mostly used for having a separate
94 -- set of params for EXPORT ciphers, which we don't have by default. 147 -- set of params for EXPORT ciphers, which we don't have by default.
95 if type(user_ssl_config.dhparam) == "string" then 148 if type(user_ssl_config.dhparam) == "string" then
139 return ctx, err; 192 return ctx, err;
140 end 193 end
141 194
142 function reload_ssl_config() 195 function reload_ssl_config()
143 global_ssl_config = configmanager.get("*", "ssl"); 196 global_ssl_config = configmanager.get("*", "ssl");
197 if luasec_has_no_compression then
198 core_defaults.options.no_compression = configmanager.get("*", "ssl_compression") ~= true;
199 end
144 end 200 end
145 201
146 prosody.events.add_handler("config-reloaded", reload_ssl_config); 202 prosody.events.add_handler("config-reloaded", reload_ssl_config);
147 203
148 return _M; 204 return _M;