prosody
05d8b4099cf5
core/certmanager.lua

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core/certmanager.lua @ 4677:05d8b4099cf5

portmanager: Add get_service_at(interface, port) and close(interface, port)
author Matthew Wild <mwild1@gmail.com>
date Tue, 24 Apr 2012 16:00:20 +0100
parent 4656:43469a2d124d
child 4855:a31ea431d906
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1 -- Prosody IM
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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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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 setmetatable, tostring = setmetatable, tostring;
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15
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16 local prosody = prosody;
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17 local resolve_path = configmanager.resolve_relative_path;
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18 local config_path = prosody.paths.config;
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20 module "certmanager"
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21
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22 -- Global SSL options if not overridden per-host
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23 local default_ssl_config = configmanager.get("*", "core", "ssl");
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24 local default_capath = "/etc/ssl/certs";
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25 local default_verify = (ssl and ssl.x509 and { "peer", "client_once", "continue", "ignore_purpose" }) or "none";
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26 local default_options = { "no_sslv2" };
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27
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28 function create_context(host, mode, user_ssl_config)
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29 user_ssl_config = user_ssl_config or default_ssl_config;
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30
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31 if not ssl then return nil, "LuaSec (required for encryption) was not found"; end
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32 if not user_ssl_config then return nil, "No SSL/TLS configuration present for "..host; end
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34 local ssl_config = {
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35 mode = mode;
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36 protocol = user_ssl_config.protocol or "sslv23";
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37 key = resolve_path(config_path, user_ssl_config.key);
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38 password = user_ssl_config.password or function() log("error", "Encrypted certificate for %s requires 'ssl' 'password' to be set in config", host); end;
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39 certificate = resolve_path(config_path, user_ssl_config.certificate);
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40 capath = resolve_path(config_path, user_ssl_config.capath or default_capath);
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41 cafile = resolve_path(config_path, user_ssl_config.cafile);
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42 verify = user_ssl_config.verify or default_verify;
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43 options = user_ssl_config.options or default_options;
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44 depth = user_ssl_config.depth;
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45 };
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46
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47 local ctx, err = ssl_newcontext(ssl_config);
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48
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49 -- LuaSec ignores the cipher list from the config, so we have to take care
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50 -- of it ourselves (W/A for #x)
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51 if ctx and user_ssl_config.ciphers then
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52 local success;
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53 success, err = ssl.context.setcipher(ctx, user_ssl_config.ciphers);
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54 if not success then ctx = nil; end
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55 end
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56
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57 if not ctx then
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58 err = err or "invalid ssl config"
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59 local file = err:match("^error loading (.-) %(");
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60 if file then
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61 if file == "private key" then
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62 file = ssl_config.key or "your private key";
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63 elseif file == "certificate" then
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64 file = ssl_config.certificate or "your certificate file";
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65 end
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66 local reason = err:match("%((.+)%)$") or "some reason";
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67 if reason == "Permission denied" then
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68 reason = "Check that the permissions allow Prosody to read this file.";
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69 elseif reason == "No such file or directory" then
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70 reason = "Check that the path is correct, and the file exists.";
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71 elseif reason == "system lib" then
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72 reason = "Previous error (see logs), or other system error.";
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73 elseif reason == "(null)" or not reason then
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74 reason = "Check that the file exists and the permissions are correct";
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75 else
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76 reason = "Reason: "..tostring(reason):lower();
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77 end
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78 log("error", "SSL/TLS: Failed to load %s: %s (host: %s)", file, reason, host);
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79 else
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80 log("error", "SSL/TLS: Error initialising for host %s: %s (host: %s)", host, err, host);
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81 end
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82 end
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83 return ctx, err;
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84 end
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85
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86 function reload_ssl_config()
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87 default_ssl_config = configmanager.get("*", "core", "ssl");
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88 end
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89
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90 prosody.events.add_handler("config-reloaded", reload_ssl_config);
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91
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92 return _M;