prosody
99be525bcfb4
plugins/mod_auth_internal_hashed.lua

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plugins/mod_auth_internal_hashed.lua @ 3180:99be525bcfb4

Rename mod_defaultauth -> mod_auth_internal, mod_hashpassauth -> mod_auth_internal_hashed, and the providers to internal and internal_hashed respectively. Also no longer auto-load defaultauth, but instead auto-load the plugin selected for each host at startup based on the provider name.
author Matthew Wild <mwild1@gmail.com>
date Fri, 04 Jun 2010 14:33:36 +0100
parent 3167:plugins/mod_hashpassauth.lua@546695e80e0a
child 3186:b5f261123013
comparison
equal deleted inserted replaced
3179:99c5288a26e4 3180:99be525bcfb4
1 -- Prosody IM
2 -- Copyright (C) 2008-2010 Matthew Wild
3 -- Copyright (C) 2008-2010 Waqas Hussain
4 -- Copyright (C) 2010 Jeff Mitchell
5 --
6 -- This project is MIT/X11 licensed. Please see the
7 -- COPYING file in the source package for more information.
8 --
9
10 local datamanager = require "util.datamanager";
11 local log = require "util.logger".init("usermanager");
12 local type = type;
13 local error = error;
14 local ipairs = ipairs;
15 local hashes = require "util.hashes";
16 local jid_bare = require "util.jid".bare;
17 local saltedPasswordSHA1 = require "util.sasl.scram".saltedPasswordSHA1;
18 local config = require "core.configmanager";
19 local usermanager = require "core.usermanager";
20 local generate_uuid = require "util.uuid".generate;
21 local hosts = hosts;
22
23 local prosody = _G.prosody;
24
25 local is_cyrus = usermanager.is_cyrus;
26
27 -- Default; can be set per-user
28 local iteration_count = 4096;
29
30 function new_hashpass_provider(host)
31 local provider = { name = "internal_hashed" };
32 log("debug", "initializing hashpass authentication provider for host '%s'", host);
33
34 function provider.test_password(username, password)
35 if is_cyrus(host) then return nil, "Legacy auth not supported with Cyrus SASL."; end
36 local credentials = datamanager.load(username, host, "accounts") or {};
37
38 if credentials.password ~= nil and string.len(credentials.password) ~= 0 then
39 if credentials.password ~= password then
40 return nil, "Auth failed. Provided password is incorrect.";
41 end
42
43 if provider.set_password(username, credentials.password) == nil then
44 return nil, "Auth failed. Could not set hashed password from plaintext.";
45 else
46 return true;
47 end
48 end
49
50 if credentials.iteration_count == nil or credentials.salt == nil or string.len(credentials.salt) == 0 then
51 return nil, "Auth failed. Stored salt and iteration count information is not complete.";
52 end
53
54 local valid, binpass = saltedPasswordSHA1(password, credentials.salt, credentials.iteration_count);
55 local hexpass = binpass:gsub(".", function (c) return ("%02x"):format(c:byte()); end);
56
57 if valid and hexpass == credentials.hashpass then
58 return true;
59 else
60 return nil, "Auth failed. Invalid username, password, or password hash information.";
61 end
62 end
63
64 function provider.set_password(username, password)
65 if is_cyrus(host) then return nil, "Passwords unavailable for Cyrus SASL."; end
66 local account = datamanager.load(username, host, "accounts");
67 if account then
68 if account.iteration_count == nil then
69 account.iteration_count = iteration_count;
70 end
71
72 if account.salt == nil then
73 account.salt = generate_uuid();
74 end
75
76 local valid, binpass = saltedPasswordSHA1(password, account.salt, account.iteration_count);
77 local hexpass = binpass:gsub(".", function (c) return ("%02x"):format(c:byte()); end);
78 account.hashpass = hexpass;
79
80 account.password = nil;
81 return datamanager.store(username, host, "accounts", account);
82 end
83 return nil, "Account not available.";
84 end
85
86 function provider.user_exists(username)
87 if is_cyrus(host) then return true; end
88 local account = datamanager.load(username, host, "accounts");
89 if not account then
90 log("debug", "account not found for username '%s' at host '%s'", username, module.host);
91 return nil, "Auth failed. Invalid username";
92 end
93 if (account.hashpass == nil or string.len(account.hashpass) == 0) and (account.password == nil or string.len(account.password) == 0) then
94 log("debug", "account password not set or zero-length for username '%s' at host '%s'", username, module.host);
95 return nil, "Auth failed. Password invalid.";
96 end
97 return true;
98 end
99
100 function provider.create_user(username, password)
101 if is_cyrus(host) then return nil, "Account creation/modification not available with Cyrus SASL."; end
102 local salt = generate_uuid();
103 local valid, binpass = saltedPasswordSHA1(password, salt, iteration_count);
104 local hexpass = binpass:gsub(".", function (c) return ("%02x"):format(c:byte()); end);
105 return datamanager.store(username, host, "accounts", {hashpass = hexpass, salt = salt, iteration_count = iteration_count});
106 end
107
108 function provider.get_supported_methods()
109 return {["PLAIN"] = true}; -- TODO this should be taken from the config
110 end
111
112 function provider.is_admin(jid)
113 local admins = config.get(host, "core", "admins");
114 if admins ~= config.get("*", "core", "admins") and type(admins) == "table" then
115 jid = jid_bare(jid);
116 for _,admin in ipairs(admins) do
117 if admin == jid then return true; end
118 end
119 elseif admins then
120 log("error", "Option 'admins' for host '%s' is not a table", host);
121 end
122 return is_admin(jid); -- Test whether it's a global admin instead
123 end
124 return provider;
125 end
126
127 module:add_item("auth-provider", new_hashpass_provider(module.host));
128