prosody
d774cb85664b
core/certmanager.lua

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core/certmanager.lua @ 6089:d774cb85664b

certmanager: Move ssl.protocol handling to after ssl.options is a table (thanks Ralph)
author Kim Alvefur <zash@zash.se>
date Mon, 21 Apr 2014 02:43:09 +0200
parent 6087:821756a862b0
child 6165:6a184b16b717
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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Waqas Hussain <waqas20@gmail.com>
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diff changeset
1 -- Prosody IM
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Waqas Hussain <waqas20@gmail.com>
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2 -- Copyright (C) 2008-2010 Matthew Wild
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3 -- Copyright (C) 2008-2010 Waqas Hussain
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Florian Zeitz <florob@babelmonkeys.de>
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4 --
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5 -- This project is MIT/X11 licensed. Please see the
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6 -- COPYING file in the source package for more information.
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7 --
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8
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9 local configmanager = require "core.configmanager";
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10 local log = require "util.logger".init("certmanager");
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11 local ssl = ssl;
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12 local ssl_newcontext = ssl and ssl.newcontext;
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13
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14 local tostring = tostring;
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15 local pairs = pairs;
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16 local type = type;
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17 local io_open = io.open;
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18 local t_concat = table.concat;
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19 local t_insert = table.insert;
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20
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21 local prosody = prosody;
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22 local resolve_path = configmanager.resolve_relative_path;
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23 local config_path = prosody.paths.config;
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24
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25 local luasec_has_noticket, luasec_has_verifyext, luasec_has_no_compression;
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26 if ssl then
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27 local luasec_major, luasec_minor = ssl._VERSION:match("^(%d+)%.(%d+)");
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28 luasec_has_noticket = tonumber(luasec_major)>0 or tonumber(luasec_minor)>=4;
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29 luasec_has_verifyext = tonumber(luasec_major)>0 or tonumber(luasec_minor)>=5;
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30 luasec_has_no_compression = tonumber(luasec_major)>0 or tonumber(luasec_minor)>=5;
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31 end
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32
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33 module "certmanager"
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34
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35 -- Global SSL options if not overridden per-host
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36 local global_ssl_config = configmanager.get("*", "ssl");
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37
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38 -- Built-in defaults
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39 local core_defaults = {
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40 capath = "/etc/ssl/certs";
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41 protocol = "tlsv1+";
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42 verify = (ssl and ssl.x509 and { "peer", "client_once", }) or "none";
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43 options = {
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44 cipher_server_preference = true;
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45 no_ticket = luasec_has_noticket;
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46 no_compression = luasec_has_no_compression and configmanager.get("*", "ssl_compression") ~= true;
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47 -- Has no_compression? Then it has these too...
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48 single_dh_use = luasec_has_no_compression;
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49 single_ecdh_use = luasec_has_no_compression;
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50 };
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51 verifyext = { "lsec_continue", "lsec_ignore_purpose" };
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52 curve = "secp384r1";
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53 ciphers = "HIGH+kEDH:HIGH+kEECDH:HIGH:!PSK:!SRP:!3DES:!aNULL";
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54 }
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55 local path_options = { -- These we pass through resolve_path()
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56 key = true, certificate = true, cafile = true, capath = true, dhparam = true
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57 }
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58 local set_options = {
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59 options = true, verify = true, verifyext = true
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60 }
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61
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62 if ssl and not luasec_has_verifyext and ssl.x509 then
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63 -- COMPAT mw/luasec-hg
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64 for i=1,#core_defaults.verifyext do -- Remove lsec_ prefix
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65 core_defaults.verify[#core_defaults.verify+1] = core_defaults.verifyext[i]:sub(6);
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66 end
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67 end
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68
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69 local function merge_set(t, o)
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70 if type(t) ~= "table" then t = { t } end
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71 for k,v in pairs(t) do
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72 if v == true or v == false then
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73 o[k] = v;
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74 else
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75 o[v] = true;
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76 end
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77 end
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78 return o;
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79 end
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80
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81 local protocols = { "sslv2", "sslv3", "tlsv1", "tlsv1_1", "tlsv1_2" };
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82 for i = 1, #protocols do protocols[protocols[i] .. "+"] = i - 1; end
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83
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84 function create_context(host, mode, user_ssl_config)
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85 user_ssl_config = user_ssl_config or {}
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86 user_ssl_config.mode = mode;
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87
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88 if not ssl then return nil, "LuaSec (required for encryption) was not found"; end
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89
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90 if global_ssl_config then
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91 for option,default_value in pairs(global_ssl_config) do
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92 if user_ssl_config[option] == nil then
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93 user_ssl_config[option] = default_value;
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94 end
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95 end
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96 end
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97
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98 for option,default_value in pairs(core_defaults) do
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99 if user_ssl_config[option] == nil then
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100 user_ssl_config[option] = default_value;
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101 end
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102 end
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103
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104 for option in pairs(set_options) do
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105 local merged = {};
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106 merge_set(core_defaults[option], merged);
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107 if global_ssl_config then
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108 merge_set(global_ssl_config[option], merged);
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109 end
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110 merge_set(user_ssl_config[option], merged);
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111 local final_array = {};
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112 for opt, enable in pairs(merged) do
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113 if enable then
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114 final_array[#final_array+1] = opt;
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115 end
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116 end
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117 user_ssl_config[option] = final_array;
6999d4415a58 certmanager: Merge ssl.options, verify etc from core defaults and global ssl settings with inheritance while allowing options to be disabled per virtualhost
Kim Alvefur <zash@zash.se>
parents: 6076
diff changeset
118 end
6999d4415a58 certmanager: Merge ssl.options, verify etc from core defaults and global ssl settings with inheritance while allowing options to be disabled per virtualhost
Kim Alvefur <zash@zash.se>
parents: 6076
diff changeset
119
6089
d774cb85664b certmanager: Move ssl.protocol handling to after ssl.options is a table (thanks Ralph)
Kim Alvefur <zash@zash.se>
parents: 6087
diff changeset
120 local min_protocol = protocols[user_ssl_config.protocol];
d774cb85664b certmanager: Move ssl.protocol handling to after ssl.options is a table (thanks Ralph)
Kim Alvefur <zash@zash.se>
parents: 6087
diff changeset
121 if min_protocol then
d774cb85664b certmanager: Move ssl.protocol handling to after ssl.options is a table (thanks Ralph)
Kim Alvefur <zash@zash.se>
parents: 6087
diff changeset
122 user_ssl_config.protocol = "sslv23";
d774cb85664b certmanager: Move ssl.protocol handling to after ssl.options is a table (thanks Ralph)
Kim Alvefur <zash@zash.se>
parents: 6087
diff changeset
123 for i = 1, min_protocol do
d774cb85664b certmanager: Move ssl.protocol handling to after ssl.options is a table (thanks Ralph)
Kim Alvefur <zash@zash.se>
parents: 6087
diff changeset
124 t_insert(user_ssl_config.options, "no_"..protocols[i]);
d774cb85664b certmanager: Move ssl.protocol handling to after ssl.options is a table (thanks Ralph)
Kim Alvefur <zash@zash.se>
parents: 6087
diff changeset
125 end
d774cb85664b certmanager: Move ssl.protocol handling to after ssl.options is a table (thanks Ralph)
Kim Alvefur <zash@zash.se>
parents: 6087
diff changeset
126 end
d774cb85664b certmanager: Move ssl.protocol handling to after ssl.options is a table (thanks Ralph)
Kim Alvefur <zash@zash.se>
parents: 6087
diff changeset
127
6076
e0713386319a certmanager: Wrap long line and add comment
Kim Alvefur <zash@zash.se>
parents: 6075
diff changeset
128 -- We can't read the password interactively when daemonized
e0713386319a certmanager: Wrap long line and add comment
Kim Alvefur <zash@zash.se>
parents: 6075
diff changeset
129 user_ssl_config.password = user_ssl_config.password or
e0713386319a certmanager: Wrap long line and add comment
Kim Alvefur <zash@zash.se>
parents: 6075
diff changeset
130 function() log("error", "Encrypted certificate for %s requires 'ssl' 'password' to be set in config", host); end;
e0713386319a certmanager: Wrap long line and add comment
Kim Alvefur <zash@zash.se>
parents: 6075
diff changeset
131
5684
5554029d759b certmanager: Overhaul of how ssl configs are built.
Kim Alvefur <zash@zash.se>
parents: 5679
diff changeset
132 for option in pairs(path_options) do
5822
970c666c5586 certmanager: Allow for specifying the dhparam option as a path to a file instead of a callback
Kim Alvefur <zash@zash.se>
parents: 5821
diff changeset
133 if type(user_ssl_config[option]) == "string" then
970c666c5586 certmanager: Allow for specifying the dhparam option as a path to a file instead of a callback
Kim Alvefur <zash@zash.se>
parents: 5821
diff changeset
134 user_ssl_config[option] = resolve_path(config_path, user_ssl_config[option]);
970c666c5586 certmanager: Allow for specifying the dhparam option as a path to a file instead of a callback
Kim Alvefur <zash@zash.se>
parents: 5821
diff changeset
135 end
5816
20e2b588f8c2 certmanager: Allow for specifying the dhparam option as a path to a file instead of a callback
Kim Alvefur <zash@zash.se>
parents: 5815
diff changeset
136 end
20e2b588f8c2 certmanager: Allow for specifying the dhparam option as a path to a file instead of a callback
Kim Alvefur <zash@zash.se>
parents: 5815
diff changeset
137
6075
524060125f9c certmanager: Concatenate cipher list if given as a table
Kim Alvefur <zash@zash.se>
parents: 6074
diff changeset
138 -- Allow the cipher list to be a table
524060125f9c certmanager: Concatenate cipher list if given as a table
Kim Alvefur <zash@zash.se>
parents: 6074
diff changeset
139 if type(user_ssl_config.ciphers) == "table" then
524060125f9c certmanager: Concatenate cipher list if given as a table
Kim Alvefur <zash@zash.se>
parents: 6074
diff changeset
140 user_ssl_config.ciphers = t_concat(user_ssl_config.ciphers, ":")
524060125f9c certmanager: Concatenate cipher list if given as a table
Kim Alvefur <zash@zash.se>
parents: 6074
diff changeset
141 end
524060125f9c certmanager: Concatenate cipher list if given as a table
Kim Alvefur <zash@zash.se>
parents: 6074
diff changeset
142
6074
6498554adb0d certmanager: Allow non-server contexts to be without certificate and key
Kim Alvefur <zash@zash.se>
parents: 6073
diff changeset
143 if mode == "server" then
6498554adb0d certmanager: Allow non-server contexts to be without certificate and key
Kim Alvefur <zash@zash.se>
parents: 6073
diff changeset
144 if not user_ssl_config.key then return nil, "No key present in SSL/TLS configuration for "..host; end
6498554adb0d certmanager: Allow non-server contexts to be without certificate and key
Kim Alvefur <zash@zash.se>
parents: 6073
diff changeset
145 if not user_ssl_config.certificate then return nil, "No certificate present in SSL/TLS configuration for "..host; end
6498554adb0d certmanager: Allow non-server contexts to be without certificate and key
Kim Alvefur <zash@zash.se>
parents: 6073
diff changeset
146 end
3355
9bb2da325d4d certmanager: Adjust paths of SSL key/certs to be relative to the config file, fixes #147
Matthew Wild <mwild1@gmail.com>
parents: 2739
diff changeset
147
5816
20e2b588f8c2 certmanager: Allow for specifying the dhparam option as a path to a file instead of a callback
Kim Alvefur <zash@zash.se>
parents: 5815
diff changeset
148 -- LuaSec expects dhparam to be a callback that takes two arguments.
20e2b588f8c2 certmanager: Allow for specifying the dhparam option as a path to a file instead of a callback
Kim Alvefur <zash@zash.se>
parents: 5815
diff changeset
149 -- We ignore those because it is mostly used for having a separate
20e2b588f8c2 certmanager: Allow for specifying the dhparam option as a path to a file instead of a callback
Kim Alvefur <zash@zash.se>
parents: 5815
diff changeset
150 -- set of params for EXPORT ciphers, which we don't have by default.
5822
970c666c5586 certmanager: Allow for specifying the dhparam option as a path to a file instead of a callback
Kim Alvefur <zash@zash.se>
parents: 5821
diff changeset
151 if type(user_ssl_config.dhparam) == "string" then
970c666c5586 certmanager: Allow for specifying the dhparam option as a path to a file instead of a callback
Kim Alvefur <zash@zash.se>
parents: 5821
diff changeset
152 local f, err = io_open(user_ssl_config.dhparam);
5816
20e2b588f8c2 certmanager: Allow for specifying the dhparam option as a path to a file instead of a callback
Kim Alvefur <zash@zash.se>
parents: 5815
diff changeset
153 if not f then return nil, "Could not open DH parameters: "..err end
20e2b588f8c2 certmanager: Allow for specifying the dhparam option as a path to a file instead of a callback
Kim Alvefur <zash@zash.se>
parents: 5815
diff changeset
154 local dhparam = f:read("*a");
20e2b588f8c2 certmanager: Allow for specifying the dhparam option as a path to a file instead of a callback
Kim Alvefur <zash@zash.se>
parents: 5815
diff changeset
155 f:close();
5822
970c666c5586 certmanager: Allow for specifying the dhparam option as a path to a file instead of a callback
Kim Alvefur <zash@zash.se>
parents: 5821
diff changeset
156 user_ssl_config.dhparam = function() return dhparam; end
5816
20e2b588f8c2 certmanager: Allow for specifying the dhparam option as a path to a file instead of a callback
Kim Alvefur <zash@zash.se>
parents: 5815
diff changeset
157 end
20e2b588f8c2 certmanager: Allow for specifying the dhparam option as a path to a file instead of a callback
Kim Alvefur <zash@zash.se>
parents: 5815
diff changeset
158
5684
5554029d759b certmanager: Overhaul of how ssl configs are built.
Kim Alvefur <zash@zash.se>
parents: 5679
diff changeset
159 local ctx, err = ssl_newcontext(user_ssl_config);
4359
c69cbac4178f certmanager: Support setting ciphers in SSL config. LuaSec apparently ignores the documented ciphers option.
Waqas Hussain <waqas20@gmail.com>
parents: 3670
diff changeset
160
5684
5554029d759b certmanager: Overhaul of how ssl configs are built.
Kim Alvefur <zash@zash.se>
parents: 5679
diff changeset
161 -- COMPAT Older LuaSec ignores the cipher list from the config, so we have to take care
4359
c69cbac4178f certmanager: Support setting ciphers in SSL config. LuaSec apparently ignores the documented ciphers option.
Waqas Hussain <waqas20@gmail.com>
parents: 3670
diff changeset
162 -- of it ourselves (W/A for #x)
c69cbac4178f certmanager: Support setting ciphers in SSL config. LuaSec apparently ignores the documented ciphers option.
Waqas Hussain <waqas20@gmail.com>
parents: 3670
diff changeset
163 if ctx and user_ssl_config.ciphers then
c69cbac4178f certmanager: Support setting ciphers in SSL config. LuaSec apparently ignores the documented ciphers option.
Waqas Hussain <waqas20@gmail.com>
parents: 3670
diff changeset
164 local success;
c69cbac4178f certmanager: Support setting ciphers in SSL config. LuaSec apparently ignores the documented ciphers option.
Waqas Hussain <waqas20@gmail.com>
parents: 3670
diff changeset
165 success, err = ssl.context.setcipher(ctx, user_ssl_config.ciphers);
c69cbac4178f certmanager: Support setting ciphers in SSL config. LuaSec apparently ignores the documented ciphers option.
Waqas Hussain <waqas20@gmail.com>
parents: 3670
diff changeset
166 if not success then ctx = nil; end
c69cbac4178f certmanager: Support setting ciphers in SSL config. LuaSec apparently ignores the documented ciphers option.
Waqas Hussain <waqas20@gmail.com>
parents: 3670
diff changeset
167 end
c69cbac4178f certmanager: Support setting ciphers in SSL config. LuaSec apparently ignores the documented ciphers option.
Waqas Hussain <waqas20@gmail.com>
parents: 3670
diff changeset
168
3355
9bb2da325d4d certmanager: Adjust paths of SSL key/certs to be relative to the config file, fixes #147
Matthew Wild <mwild1@gmail.com>
parents: 2739
diff changeset
169 if not ctx then
9bb2da325d4d certmanager: Adjust paths of SSL key/certs to be relative to the config file, fixes #147
Matthew Wild <mwild1@gmail.com>
parents: 2739
diff changeset
170 err = err or "invalid ssl config"
9bb2da325d4d certmanager: Adjust paths of SSL key/certs to be relative to the config file, fixes #147
Matthew Wild <mwild1@gmail.com>
parents: 2739
diff changeset
171 local file = err:match("^error loading (.-) %(");
9bb2da325d4d certmanager: Adjust paths of SSL key/certs to be relative to the config file, fixes #147
Matthew Wild <mwild1@gmail.com>
parents: 2739
diff changeset
172 if file then
9bb2da325d4d certmanager: Adjust paths of SSL key/certs to be relative to the config file, fixes #147
Matthew Wild <mwild1@gmail.com>
parents: 2739
diff changeset
173 if file == "private key" then
5684
5554029d759b certmanager: Overhaul of how ssl configs are built.
Kim Alvefur <zash@zash.se>
parents: 5679
diff changeset
174 file = user_ssl_config.key or "your private key";
3355
9bb2da325d4d certmanager: Adjust paths of SSL key/certs to be relative to the config file, fixes #147
Matthew Wild <mwild1@gmail.com>
parents: 2739
diff changeset
175 elseif file == "certificate" then
5684
5554029d759b certmanager: Overhaul of how ssl configs are built.
Kim Alvefur <zash@zash.se>
parents: 5679
diff changeset
176 file = user_ssl_config.certificate or "your certificate file";
3355
9bb2da325d4d certmanager: Adjust paths of SSL key/certs to be relative to the config file, fixes #147
Matthew Wild <mwild1@gmail.com>
parents: 2739
diff changeset
177 end
9bb2da325d4d certmanager: Adjust paths of SSL key/certs to be relative to the config file, fixes #147
Matthew Wild <mwild1@gmail.com>
parents: 2739
diff changeset
178 local reason = err:match("%((.+)%)$") or "some reason";
9bb2da325d4d certmanager: Adjust paths of SSL key/certs to be relative to the config file, fixes #147
Matthew Wild <mwild1@gmail.com>
parents: 2739
diff changeset
179 if reason == "Permission denied" then
9bb2da325d4d certmanager: Adjust paths of SSL key/certs to be relative to the config file, fixes #147
Matthew Wild <mwild1@gmail.com>
parents: 2739
diff changeset
180 reason = "Check that the permissions allow Prosody to read this file.";
9bb2da325d4d certmanager: Adjust paths of SSL key/certs to be relative to the config file, fixes #147
Matthew Wild <mwild1@gmail.com>
parents: 2739
diff changeset
181 elseif reason == "No such file or directory" then
9bb2da325d4d certmanager: Adjust paths of SSL key/certs to be relative to the config file, fixes #147
Matthew Wild <mwild1@gmail.com>
parents: 2739
diff changeset
182 reason = "Check that the path is correct, and the file exists.";
9bb2da325d4d certmanager: Adjust paths of SSL key/certs to be relative to the config file, fixes #147
Matthew Wild <mwild1@gmail.com>
parents: 2739
diff changeset
183 elseif reason == "system lib" then
9bb2da325d4d certmanager: Adjust paths of SSL key/certs to be relative to the config file, fixes #147
Matthew Wild <mwild1@gmail.com>
parents: 2739
diff changeset
184 reason = "Previous error (see logs), or other system error.";
9bb2da325d4d certmanager: Adjust paths of SSL key/certs to be relative to the config file, fixes #147
Matthew Wild <mwild1@gmail.com>
parents: 2739
diff changeset
185 elseif reason == "(null)" or not reason then
9bb2da325d4d certmanager: Adjust paths of SSL key/certs to be relative to the config file, fixes #147
Matthew Wild <mwild1@gmail.com>
parents: 2739
diff changeset
186 reason = "Check that the file exists and the permissions are correct";
2630
e8fc67b73820 certmanager: Bring back the friendly errors when failing to load the key/certificate file
Matthew Wild <mwild1@gmail.com>
parents: 2564
diff changeset
187 else
3355
9bb2da325d4d certmanager: Adjust paths of SSL key/certs to be relative to the config file, fixes #147
Matthew Wild <mwild1@gmail.com>
parents: 2739
diff changeset
188 reason = "Reason: "..tostring(reason):lower();
2630
e8fc67b73820 certmanager: Bring back the friendly errors when failing to load the key/certificate file
Matthew Wild <mwild1@gmail.com>
parents: 2564
diff changeset
189 end
4925
55f6e0673e33 certmanager: Add quotes around cert file path when logging.
Waqas Hussain <waqas20@gmail.com>
parents: 4900
diff changeset
190 log("error", "SSL/TLS: Failed to load '%s': %s (for %s)", file, reason, host);
3355
9bb2da325d4d certmanager: Adjust paths of SSL key/certs to be relative to the config file, fixes #147
Matthew Wild <mwild1@gmail.com>
parents: 2739
diff changeset
191 else
4855
a31ea431d906 certmanager: Adjust error messages to be non-specific about 'host' (so we can specify a service name instead ffor SSL)
Matthew Wild <mwild1@gmail.com>
parents: 4656
diff changeset
192 log("error", "SSL/TLS: Error initialising for %s: %s", host, err);
3355
9bb2da325d4d certmanager: Adjust paths of SSL key/certs to be relative to the config file, fixes #147
Matthew Wild <mwild1@gmail.com>
parents: 2739
diff changeset
193 end
3540
bc139431830b Monster whitespace commit (beware the whitespace monster).
Waqas Hussain <waqas20@gmail.com>
parents: 3402
diff changeset
194 end
bc139431830b Monster whitespace commit (beware the whitespace monster).
Waqas Hussain <waqas20@gmail.com>
parents: 3402
diff changeset
195 return ctx, err;
2554
b877533d4ec9 certmanager: Hello world, I'm come to manage your SSL contexts
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
196 end
b877533d4ec9 certmanager: Hello world, I'm come to manage your SSL contexts
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
197
b877533d4ec9 certmanager: Hello world, I'm come to manage your SSL contexts
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
198 function reload_ssl_config()
5684
5554029d759b certmanager: Overhaul of how ssl configs are built.
Kim Alvefur <zash@zash.se>
parents: 5679
diff changeset
199 global_ssl_config = configmanager.get("*", "ssl");
6080
b7d1607df87d certmanager: Update ssl_compression when config is reloaded
Kim Alvefur <zash@zash.se>
parents: 6079
diff changeset
200 if luasec_has_no_compression then
b7d1607df87d certmanager: Update ssl_compression when config is reloaded
Kim Alvefur <zash@zash.se>
parents: 6079
diff changeset
201 core_defaults.options.no_compression = configmanager.get("*", "ssl_compression") ~= true;
b7d1607df87d certmanager: Update ssl_compression when config is reloaded
Kim Alvefur <zash@zash.se>
parents: 6079
diff changeset
202 end
2554
b877533d4ec9 certmanager: Hello world, I'm come to manage your SSL contexts
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
203 end
b877533d4ec9 certmanager: Hello world, I'm come to manage your SSL contexts
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
204
b877533d4ec9 certmanager: Hello world, I'm come to manage your SSL contexts
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
205 prosody.events.add_handler("config-reloaded", reload_ssl_config);
b877533d4ec9 certmanager: Hello world, I'm come to manage your SSL contexts
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
206
b877533d4ec9 certmanager: Hello world, I'm come to manage your SSL contexts
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
207 return _M;