prosody
1e4e314bef33
core/usermanager.lua

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core/usermanager.lua @ 2929:1e4e314bef33

usermanager: Return sane errors/results when Cyrus SASL is in use.
author Waqas Hussain <waqas20@gmail.com>
date Tue, 23 Mar 2010 20:24:56 +0500
parent 2923:b7049746bd29
child 2934:060bb8217fea
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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 datamanager = require "util.datamanager";
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10 local log = require "util.logger".init("usermanager");
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11 local type = type;
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12 local error = error;
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13 local ipairs = ipairs;
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14 local hashes = require "util.hashes";
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15 local jid_bare = require "util.jid".bare;
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16 local config = require "core.configmanager";
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17 local hosts = hosts;
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19 module "usermanager"
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20
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21 local function is_cyrus(host) return config.get(host, "core", "sasl_backend") == "cyrus"; end
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22
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23 function validate_credentials(host, username, password, method)
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24 log("debug", "User '%s' is being validated", username);
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25 if is_cyrus(host) then return nil, "Legacy auth not supported with Cyrus SASL."; end
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26 local credentials = datamanager.load(username, host, "accounts") or {};
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28 if method == nil then method = "PLAIN"; end
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29 if method == "PLAIN" and credentials.password then -- PLAIN, do directly
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30 if password == credentials.password then
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31 return true;
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32 else
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33 return nil, "Auth failed. Invalid username or password.";
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34 end
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35 end
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36 -- must do md5
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37 -- make credentials md5
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38 local pwd = credentials.password;
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39 if not pwd then pwd = credentials.md5; else pwd = hashes.md5(pwd, true); end
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40 -- make password md5
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41 if method == "PLAIN" then
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42 password = hashes.md5(password or "", true);
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43 elseif method ~= "DIGEST-MD5" then
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44 return nil, "Unsupported auth method";
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45 end
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46 -- compare
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47 if password == pwd then
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48 return true;
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49 else
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50 return nil, "Auth failed. Invalid username or password.";
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51 end
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52 end
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54 function get_password(username, host)
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55 if is_cyrus(host) then return nil, "Passwords unavailable for Cyrus SASL."; end
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56 return (datamanager.load(username, host, "accounts") or {}).password
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57 end
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58
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59 function user_exists(username, host)
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60 if is_cyrus(host) then return true; end
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61 return datamanager.load(username, host, "accounts") ~= nil; -- FIXME also check for empty credentials
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62 end
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64 function create_user(username, password, host)
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65 if is_cyrus(host) then return nil, "Account creation/modification not available with Cyrus SASL."; end
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66 return datamanager.store(username, host, "accounts", {password = password});
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67 end
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68
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69 function get_supported_methods(host)
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70 return {["PLAIN"] = true, ["DIGEST-MD5"] = true}; -- TODO this should be taken from the config
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71 end
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72
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73 function is_admin(jid, host)
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74 host = host or "*";
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75 local admins = config.get(host, "core", "admins");
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76 if host ~= "*" and admins == config.get("*", "core", "admins") then
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77 return nil;
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78 end
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79 if type(admins) == "table" then
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80 jid = jid_bare(jid);
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81 for _,admin in ipairs(admins) do
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82 if admin == jid then return true; end
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83 end
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84 elseif admins then log("warn", "Option 'admins' for host '%s' is not a table", host); end
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85 return nil;
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86 end
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87
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88 return _M;