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mod_auth_external/mod_auth_external.lua @ 600:03be4622454f
mod_stanza_counter_http: de-revert to use configmanager instead of module mm for the cleanup function also give it an unique name (mismatch possible "??")
author | Marco Cirillo <maranda@lightwitch.org> |
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date | Thu, 09 Feb 2012 00:52:18 +0000 |
parent | 342:8e9e5c7d97ff |
child | 814:881ec9919144 |
rev | line source |
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158
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1 -- |
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2 -- NOTE: currently this uses lpc; when waqas fixes process, it can go back to that |
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3 -- |
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4 -- Prosody IM |
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5 -- Copyright (C) 2010 Waqas Hussain |
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6 -- Copyright (C) 2010 Jeff Mitchell |
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7 -- |
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8 -- This project is MIT/X11 licensed. Please see the |
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9 -- COPYING file in the source package for more information. |
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10 -- |
152 | 11 |
12 | |
13 local nodeprep = require "util.encodings".stringprep.nodeprep; | |
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14 --local process = require "process"; |
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15 local lpc = require "lpc"; |
152 | 16 |
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17 local config = require "core.configmanager"; |
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18 local log = module._log; |
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19 local host = module.host; |
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20 local script_type = config.get(host, "core", "external_auth_protocol") or "generic"; |
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21 assert(script_type == "ejabberd" or script_type == "generic"); |
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22 local command = config.get(host, "core", "external_auth_command") or ""; |
152 | 23 assert(type(command) == "string"); |
24 assert(not host:find(":")); | |
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25 local usermanager = require "core.usermanager"; |
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26 local jid_bare = require "util.jid".bare; |
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27 local new_sasl = require "util.sasl".new; |
152 | 28 |
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29 --local proc; |
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30 local pid; |
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31 local readfile; |
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32 local writefile; |
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33 |
152 | 34 local function send_query(text) |
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35 if pid and lpc.wait(pid,1) ~= nil then |
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36 log("debug","error, process died, force reopen"); |
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37 pid=nil; |
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38 end |
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39 if not pid then |
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40 log("debug", "Opening process " .. command); |
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41 -- proc = process.popen(command); |
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42 pid, writefile, readfile = lpc.run(command); |
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43 end |
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44 -- if not proc then |
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45 if not pid then |
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46 log("debug", "Process failed to open"); |
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47 return nil; |
152 | 48 end |
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49 -- proc:write(text); |
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50 -- proc:flush(); |
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51 |
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52 writefile:write(text); |
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53 writefile:flush(); |
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54 if script_type == "ejabberd" then |
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55 -- return proc:read(4); -- FIXME do properly |
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56 return readfile:read(4); -- FIXME do properly |
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57 elseif script_type == "generic" then |
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58 -- return proc:read(1); |
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59 return readfile:read(); |
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60 end |
152 | 61 end |
62 | |
63 function do_query(kind, username, password) | |
64 if not username then return nil, "not-acceptable"; end | |
65 username = nodeprep(username); | |
66 if not username then return nil, "jid-malformed"; end | |
67 | |
68 local query = (password and "%s:%s:%s:%s" or "%s:%s:%s"):format(kind, username, host, password); | |
69 local len = #query | |
70 if len > 1000 then return nil, "policy-violation"; end | |
71 | |
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72 if script_type == "ejabberd" then |
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73 local lo = len % 256; |
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74 local hi = (len - lo) / 256; |
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75 query = string.char(hi, lo)..query; |
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76 end |
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77 if script_type == "generic" then |
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78 query = query..'\n'; |
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79 end |
152 | 80 |
81 local response = send_query(query); | |
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82 if (script_type == "ejabberd" and response == "\0\2\0\0") or |
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83 (script_type == "generic" and response == "0") then |
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84 return nil, "not-authorized"; |
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85 elseif (script_type == "ejabberd" and response == "\0\2\0\1") or |
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86 (script_type == "generic" and response == "1") then |
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87 return true; |
152 | 88 else |
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89 log("debug", "Nonsense back"); |
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90 --proc:close(); |
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91 --proc = nil; |
152 | 92 return nil, "internal-server-error"; |
93 end | |
94 end | |
95 | |
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96 function new_external_provider(host) |
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97 local provider = { name = "external" }; |
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98 |
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99 function provider.test_password(username, password) |
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100 return do_query("auth", username, password); |
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101 end |
152 | 102 |
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103 function provider.set_password(username, password) |
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104 return do_query("setpass", username, password); |
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105 end |
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106 |
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107 function provider.user_exists(username) |
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108 return do_query("isuser", username); |
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109 end |
152 | 110 |
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111 function provider.create_user(username, password) return nil, "Account creation/modification not available."; end |
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112 |
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113 function provider.get_sasl_handler() |
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114 local testpass_authentication_profile = { |
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115 plain_test = function(sasl, username, password, realm) |
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116 local prepped_username = nodeprep(username); |
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117 if not prepped_username then |
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118 log("debug", "NODEprep failed on username: %s", username); |
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119 return "", nil; |
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120 end |
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121 return usermanager.test_password(prepped_username, realm, password), true; |
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122 end, |
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123 }; |
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124 return new_sasl(module.host, testpass_authentication_profile); |
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125 end |
152 | 126 |
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127 function provider.is_admin(jid) |
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128 local admins = config.get(host, "core", "admins"); |
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129 if admins ~= config.get("*", "core", "admins") then |
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130 if type(admins) == "table" then |
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131 jid = jid_bare(jid); |
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132 for _,admin in ipairs(admins) do |
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133 if admin == jid then return true; end |
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134 end |
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135 elseif admins then |
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136 log("error", "Option 'admins' for host '%s' is not a table", host); |
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137 end |
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138 end |
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139 return usermanager.is_admin(jid); -- Test whether it's a global admin instead |
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140 end |
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141 |
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142 return provider; |
152 | 143 end |
144 | |
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145 module:add_item("auth-provider", new_external_provider(module.host)); |