author | Kim Alvefur <zash@zash.se> |
Mon, 14 Sep 2015 12:57:25 +0200 | |
changeset 1856 | 4f49ac23fc36 |
parent 1343 | 7dbde05b48a9 |
permissions | -rw-r--r-- |
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-- Wordpress authentication backend for Prosody |
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-- |
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-- Copyright (C) 2011 Waqas Hussain |
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-- Copyright (C) 2011 Kim Alvefur |
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-- |
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local log = require "util.logger".init("auth_sql"); |
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local new_sasl = require "util.sasl".new; |
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local nodeprep = require "util.encodings".stringprep.nodeprep; |
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local saslprep = require "util.encodings".stringprep.saslprep; |
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local DBI = require "DBI" |
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local md5 = require "util.hashes".md5; |
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local uuid_gen = require "util.uuid".generate; |
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local connection; |
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local params = module:get_option("sql"); |
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local table_prefix = module:get_option_string("wordpress_table_prefix", "wp_"); |
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local resolve_relative_path = require "core.configmanager".resolve_relative_path; |
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local function test_connection() |
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if not connection then return nil; end |
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if connection:ping() then |
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return true; |
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else |
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module:log("debug", "Database connection closed"); |
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connection = nil; |
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end |
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end |
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local function connect() |
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if not test_connection() then |
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prosody.unlock_globals(); |
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local dbh, err = DBI.Connect( |
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params.driver, params.database, |
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params.username, params.password, |
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params.host, params.port |
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); |
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prosody.lock_globals(); |
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if not dbh then |
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module:log("debug", "Database connection failed: %s", tostring(err)); |
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return nil, err; |
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end |
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module:log("debug", "Successfully connected to database"); |
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dbh:autocommit(true); -- don't run in transaction |
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connection = dbh; |
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return connection; |
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end |
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end |
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do -- process options to get a db connection |
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params = params or { driver = "SQLite3" }; |
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|
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if params.driver == "SQLite3" then |
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params.database = resolve_relative_path(prosody.paths.data or ".", params.database or "prosody.sqlite"); |
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end |
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assert(params.driver and params.database, "Both the SQL driver and the database need to be specified"); |
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assert(connect()); |
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end |
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|
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local function getsql(sql, ...) |
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if params.driver == "PostgreSQL" then |
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sql = sql:gsub("`", "\""); |
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end |
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if not test_connection() then connect(); end |
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-- do prepared statement stuff |
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local stmt, err = connection:prepare(sql); |
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if not stmt and not test_connection() then error("connection failed"); end |
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if not stmt then module:log("error", "QUERY FAILED: %s %s", err, debug.traceback()); return nil, err; end |
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-- run query |
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local ok, err = stmt:execute(...); |
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if not ok and not test_connection() then error("connection failed"); end |
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if not ok then return nil, err; end |
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|
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return stmt; |
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end |
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local function setsql(sql, ...) |
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local stmt, err = getsql(sql, ...); |
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if not stmt then return stmt, err; end |
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return stmt:affected(); |
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end |
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|
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local function get_password(username) |
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local stmt, err = getsql("SELECT `user_pass` FROM `"..table_prefix.."users` WHERE `user_login`=?", username); |
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if stmt then |
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for row in stmt:rows(true) do |
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return row.user_pass; |
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89 |
end |
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end |
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end |
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|
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|
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94 |
local itoa64 = "./0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"; |
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local function hashEncode64(input, count) |
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96 |
local output = ""; |
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97 |
local i, value = 0, 0; |
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98 |
|
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99 |
while true do |
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100 |
value = input:byte(i+1) |
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101 |
i = i+1; |
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102 |
local idx = value % 0x40 + 1; |
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103 |
output = output .. itoa64:sub(idx, idx); |
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104 |
|
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105 |
if i < count then |
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106 |
value = value + input:byte(i+1) * 256; |
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107 |
end |
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108 |
local _ = value % (2^6); |
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109 |
local idx = ((value - _) / (2^6)) % 0x40 + 1 |
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110 |
output = output .. itoa64:sub(idx, idx); |
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111 |
|
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112 |
if i >= count then break; end |
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113 |
i = i+1; |
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114 |
|
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mod_auth_phpbb3: Initial commit.
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parents:
diff
changeset
|
115 |
if i < count then |
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mod_auth_phpbb3: Initial commit.
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parents:
diff
changeset
|
116 |
value = value + input:byte(i+1) * 256 * 256; |
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mod_auth_phpbb3: Initial commit.
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parents:
diff
changeset
|
117 |
end |
81c7b36e6cdd
mod_auth_phpbb3: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff
changeset
|
118 |
local _ = value % (2^12); |
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mod_auth_phpbb3: Initial commit.
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parents:
diff
changeset
|
119 |
local idx = ((value - _) / (2^12)) % 0x40 + 1 |
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mod_auth_phpbb3: Initial commit.
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parents:
diff
changeset
|
120 |
output = output .. itoa64:sub(idx, idx); |
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mod_auth_phpbb3: Initial commit.
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parents:
diff
changeset
|
121 |
|
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mod_auth_phpbb3: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff
changeset
|
122 |
if i >= count then break; end |
81c7b36e6cdd
mod_auth_phpbb3: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff
changeset
|
123 |
i = i+1; |
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mod_auth_phpbb3: Initial commit.
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parents:
diff
changeset
|
124 |
|
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mod_auth_phpbb3: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff
changeset
|
125 |
local _ = value % (2^18); |
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mod_auth_phpbb3: Initial commit.
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parents:
diff
changeset
|
126 |
local idx = ((value - _) / (2^18)) % 0x40 + 1 |
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mod_auth_phpbb3: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff
changeset
|
127 |
output = output .. itoa64:sub(idx, idx); |
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mod_auth_phpbb3: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff
changeset
|
128 |
|
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mod_auth_phpbb3: Initial commit.
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parents:
diff
changeset
|
129 |
if not(i < count) then break; end |
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Waqas Hussain <waqas20@gmail.com>
parents:
diff
changeset
|
130 |
end |
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parents:
diff
changeset
|
131 |
return output; |
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parents:
diff
changeset
|
132 |
end |
377
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parents:
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diff
changeset
|
133 |
local function hashCryptPrivate(password, genSalt) |
373
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parents:
diff
changeset
|
134 |
local output = "*"; |
423
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parents:
421
diff
changeset
|
135 |
if not genSalt:match("^%$P%$") then return output; end |
373
81c7b36e6cdd
mod_auth_phpbb3: Initial commit.
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parents:
diff
changeset
|
136 |
|
81c7b36e6cdd
mod_auth_phpbb3: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff
changeset
|
137 |
local count_log2 = itoa64:find(genSalt:sub(4,4)) - 1; |
81c7b36e6cdd
mod_auth_phpbb3: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff
changeset
|
138 |
if count_log2 < 7 or count_log2 > 30 then return output; end |
81c7b36e6cdd
mod_auth_phpbb3: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff
changeset
|
139 |
|
81c7b36e6cdd
mod_auth_phpbb3: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff
changeset
|
140 |
local count = 2 ^ count_log2; |
81c7b36e6cdd
mod_auth_phpbb3: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff
changeset
|
141 |
local salt = genSalt:sub(5, 12); |
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mod_auth_phpbb3: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff
changeset
|
142 |
|
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mod_auth_phpbb3: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff
changeset
|
143 |
if #salt ~= 8 then return output; end |
81c7b36e6cdd
mod_auth_phpbb3: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff
changeset
|
144 |
|
81c7b36e6cdd
mod_auth_phpbb3: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff
changeset
|
145 |
local hash = md5(salt..password); |
81c7b36e6cdd
mod_auth_phpbb3: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff
changeset
|
146 |
|
81c7b36e6cdd
mod_auth_phpbb3: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff
changeset
|
147 |
while true do |
81c7b36e6cdd
mod_auth_phpbb3: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff
changeset
|
148 |
hash = md5(hash..password); |
81c7b36e6cdd
mod_auth_phpbb3: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff
changeset
|
149 |
if not(count > 1) then break; end |
81c7b36e6cdd
mod_auth_phpbb3: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff
changeset
|
150 |
count = count-1; |
81c7b36e6cdd
mod_auth_phpbb3: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff
changeset
|
151 |
end |
81c7b36e6cdd
mod_auth_phpbb3: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff
changeset
|
152 |
|
81c7b36e6cdd
mod_auth_phpbb3: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff
changeset
|
153 |
output = genSalt:sub(1, 12); |
377
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parents:
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diff
changeset
|
154 |
output = output .. hashEncode64(hash, 16); |
373
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mod_auth_phpbb3: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff
changeset
|
155 |
|
81c7b36e6cdd
mod_auth_phpbb3: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff
changeset
|
156 |
return output; |
81c7b36e6cdd
mod_auth_phpbb3: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff
changeset
|
157 |
end |
377
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parents:
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diff
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|
158 |
local function hashGensaltPrivate(input) |
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parents:
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diff
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|
159 |
local iteration_count_log2 = 6; |
425
34eb9df9e37f
mod_auth_wordpress: Fix hash identifier.
Kim Alvefur <zash@zash.se>
parents:
424
diff
changeset
|
160 |
local output = "$P$"; |
377
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parents:
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diff
changeset
|
161 |
local idx = math.min(iteration_count_log2 + 5, 30) + 1; |
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parents:
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diff
changeset
|
162 |
output = output .. itoa64:sub(idx, idx); |
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parents:
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diff
changeset
|
163 |
output = output .. hashEncode64(input, 6); |
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mod_auth_phpbb3: Implement password change.
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parents:
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diff
changeset
|
164 |
return output; |
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mod_auth_phpbb3: Implement password change.
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parents:
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diff
changeset
|
165 |
end |
424
22935ef37284
mod_auth_wordpress: Rename functions to match module name
Kim Alvefur <zash@zash.se>
parents:
423
diff
changeset
|
166 |
local function wordpressCheckHash(password, hash) |
22935ef37284
mod_auth_wordpress: Rename functions to match module name
Kim Alvefur <zash@zash.se>
parents:
423
diff
changeset
|
167 |
if #hash == 32 then return hash == md5(password, true); end |
377
145fa870321c
mod_auth_phpbb3: Implement password change.
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parents:
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diff
changeset
|
168 |
return #hash == 34 and hashCryptPrivate(password, hash) == hash; |
373
81c7b36e6cdd
mod_auth_phpbb3: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff
changeset
|
169 |
end |
424
22935ef37284
mod_auth_wordpress: Rename functions to match module name
Kim Alvefur <zash@zash.se>
parents:
423
diff
changeset
|
170 |
local function wordpressCreateHash(password) |
377
145fa870321c
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parents:
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diff
changeset
|
171 |
local random = uuid_gen():sub(-6); |
145fa870321c
mod_auth_phpbb3: Implement password change.
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parents:
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diff
changeset
|
172 |
local salt = hashGensaltPrivate(random); |
145fa870321c
mod_auth_phpbb3: Implement password change.
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parents:
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diff
changeset
|
173 |
local hash = hashCryptPrivate(password, salt); |
145fa870321c
mod_auth_phpbb3: Implement password change.
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parents:
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diff
changeset
|
174 |
if #hash == 34 then return hash; end |
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mod_auth_phpbb3: Implement password change.
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parents:
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diff
changeset
|
175 |
return md5(password, true); |
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mod_auth_phpbb3: Implement password change.
Waqas Hussain <waqas20@gmail.com>
parents:
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diff
changeset
|
176 |
end |
145fa870321c
mod_auth_phpbb3: Implement password change.
Waqas Hussain <waqas20@gmail.com>
parents:
376
diff
changeset
|
177 |
|
373
81c7b36e6cdd
mod_auth_phpbb3: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff
changeset
|
178 |
|
814
881ec9919144
mod_auth_*: Use module:provides(), and don't explicitly specify provider.name.
Waqas Hussain <waqas20@gmail.com>
parents:
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diff
changeset
|
179 |
provider = {}; |
373
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mod_auth_phpbb3: Initial commit.
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parents:
diff
changeset
|
180 |
|
81c7b36e6cdd
mod_auth_phpbb3: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff
changeset
|
181 |
function provider.test_password(username, password) |
81c7b36e6cdd
mod_auth_phpbb3: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff
changeset
|
182 |
local hash = get_password(username); |
424
22935ef37284
mod_auth_wordpress: Rename functions to match module name
Kim Alvefur <zash@zash.se>
parents:
423
diff
changeset
|
183 |
return hash and wordpressCheckHash(password, hash); |
373
81c7b36e6cdd
mod_auth_phpbb3: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff
changeset
|
184 |
end |
81c7b36e6cdd
mod_auth_phpbb3: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff
changeset
|
185 |
function provider.user_exists(username) |
81c7b36e6cdd
mod_auth_phpbb3: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff
changeset
|
186 |
module:log("debug", "test user %s existence", username); |
81c7b36e6cdd
mod_auth_phpbb3: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff
changeset
|
187 |
return get_password(username) and true; |
81c7b36e6cdd
mod_auth_phpbb3: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff
changeset
|
188 |
end |
81c7b36e6cdd
mod_auth_phpbb3: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff
changeset
|
189 |
|
81c7b36e6cdd
mod_auth_phpbb3: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff
changeset
|
190 |
function provider.get_password(username) |
81c7b36e6cdd
mod_auth_phpbb3: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff
changeset
|
191 |
return nil, "Getting password is not supported."; |
81c7b36e6cdd
mod_auth_phpbb3: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff
changeset
|
192 |
end |
81c7b36e6cdd
mod_auth_phpbb3: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff
changeset
|
193 |
function provider.set_password(username, password) |
424
22935ef37284
mod_auth_wordpress: Rename functions to match module name
Kim Alvefur <zash@zash.se>
parents:
423
diff
changeset
|
194 |
local hash = wordpressCreateHash(password); |
426
6f2e37d0a1b0
mod_auth_wordpress: Allow table prefix to be configured
Kim Alvefur <zash@zash.se>
parents:
425
diff
changeset
|
195 |
local stmt, err = setsql("UPDATE `"..table_prefix.."users` SET `user_pass`=? WHERE `user_login`=?", hash, username); |
377
145fa870321c
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parents:
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diff
changeset
|
196 |
return stmt and true, err; |
373
81c7b36e6cdd
mod_auth_phpbb3: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff
changeset
|
197 |
end |
81c7b36e6cdd
mod_auth_phpbb3: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff
changeset
|
198 |
function provider.create_user(username, password) |
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mod_auth_phpbb3: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff
changeset
|
199 |
return nil, "Account creation/modification not supported."; |
81c7b36e6cdd
mod_auth_phpbb3: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff
changeset
|
200 |
end |
81c7b36e6cdd
mod_auth_phpbb3: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff
changeset
|
201 |
|
419
2a2b70e1a998
mod_auth_phpbb3: Apply stringprep, and try automatic JID escaping to derive username.
Waqas Hussain <waqas20@gmail.com>
parents:
377
diff
changeset
|
202 |
local escapes = { |
2a2b70e1a998
mod_auth_phpbb3: Apply stringprep, and try automatic JID escaping to derive username.
Waqas Hussain <waqas20@gmail.com>
parents:
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diff
changeset
|
203 |
[" "] = "\\20"; |
2a2b70e1a998
mod_auth_phpbb3: Apply stringprep, and try automatic JID escaping to derive username.
Waqas Hussain <waqas20@gmail.com>
parents:
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diff
changeset
|
204 |
['"'] = "\\22"; |
2a2b70e1a998
mod_auth_phpbb3: Apply stringprep, and try automatic JID escaping to derive username.
Waqas Hussain <waqas20@gmail.com>
parents:
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diff
changeset
|
205 |
["&"] = "\\26"; |
2a2b70e1a998
mod_auth_phpbb3: Apply stringprep, and try automatic JID escaping to derive username.
Waqas Hussain <waqas20@gmail.com>
parents:
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diff
changeset
|
206 |
["'"] = "\\27"; |
2a2b70e1a998
mod_auth_phpbb3: Apply stringprep, and try automatic JID escaping to derive username.
Waqas Hussain <waqas20@gmail.com>
parents:
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diff
changeset
|
207 |
["/"] = "\\2f"; |
2a2b70e1a998
mod_auth_phpbb3: Apply stringprep, and try automatic JID escaping to derive username.
Waqas Hussain <waqas20@gmail.com>
parents:
377
diff
changeset
|
208 |
[":"] = "\\3a"; |
2a2b70e1a998
mod_auth_phpbb3: Apply stringprep, and try automatic JID escaping to derive username.
Waqas Hussain <waqas20@gmail.com>
parents:
377
diff
changeset
|
209 |
["<"] = "\\3c"; |
2a2b70e1a998
mod_auth_phpbb3: Apply stringprep, and try automatic JID escaping to derive username.
Waqas Hussain <waqas20@gmail.com>
parents:
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diff
changeset
|
210 |
[">"] = "\\3e"; |
2a2b70e1a998
mod_auth_phpbb3: Apply stringprep, and try automatic JID escaping to derive username.
Waqas Hussain <waqas20@gmail.com>
parents:
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diff
changeset
|
211 |
["@"] = "\\40"; |
2a2b70e1a998
mod_auth_phpbb3: Apply stringprep, and try automatic JID escaping to derive username.
Waqas Hussain <waqas20@gmail.com>
parents:
377
diff
changeset
|
212 |
["\\"] = "\\5c"; |
2a2b70e1a998
mod_auth_phpbb3: Apply stringprep, and try automatic JID escaping to derive username.
Waqas Hussain <waqas20@gmail.com>
parents:
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diff
changeset
|
213 |
}; |
2a2b70e1a998
mod_auth_phpbb3: Apply stringprep, and try automatic JID escaping to derive username.
Waqas Hussain <waqas20@gmail.com>
parents:
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diff
changeset
|
214 |
local unescapes = {}; |
2a2b70e1a998
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Waqas Hussain <waqas20@gmail.com>
parents:
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diff
changeset
|
215 |
for k,v in pairs(escapes) do unescapes[v] = k; end |
2a2b70e1a998
mod_auth_phpbb3: Apply stringprep, and try automatic JID escaping to derive username.
Waqas Hussain <waqas20@gmail.com>
parents:
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diff
changeset
|
216 |
local function jid_escape(s) return s and (s:gsub(".", escapes)); end |
2a2b70e1a998
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parents:
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diff
changeset
|
217 |
local function jid_unescape(s) return s and (s:gsub("\\%x%x", unescapes)); end |
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Waqas Hussain <waqas20@gmail.com>
parents:
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diff
changeset
|
218 |
|
373
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parents:
diff
changeset
|
219 |
function provider.get_sasl_handler() |
419
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parents:
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diff
changeset
|
220 |
local sasl = {}; |
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parents:
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diff
changeset
|
221 |
function sasl:clean_clone() return provider.get_sasl_handler(); end |
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parents:
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diff
changeset
|
222 |
function sasl:mechanisms() return { PLAIN = true; }; end |
2a2b70e1a998
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Waqas Hussain <waqas20@gmail.com>
parents:
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diff
changeset
|
223 |
function sasl:select(mechanism) |
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Waqas Hussain <waqas20@gmail.com>
parents:
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diff
changeset
|
224 |
if not self.selected and mechanism == "PLAIN" then |
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self.selected = mechanism; |
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return true; |
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end |
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end |
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function sasl:process(message) |
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if not message then return "failure", "malformed-request"; end |
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local authorization, authentication, password = message:match("^([^%z]*)%z([^%z]+)%z([^%z]+)"); |
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if not authorization then return "failure", "malformed-request"; end |
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authentication = saslprep(authentication); |
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password = saslprep(password); |
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if (not password) or (password == "") or (not authentication) or (authentication == "") then |
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return "failure", "malformed-request", "Invalid username or password."; |
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237 |
end |
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238 |
local function test(authentication) |
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local prepped = nodeprep(authentication); |
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local normalized = jid_unescape(prepped); |
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return normalized and provider.test_password(normalized, password) and prepped; |
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parents:
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242 |
end |
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local username = test(authentication) or test(jid_escape(authentication)); |
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244 |
if username then |
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self.username = username; |
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246 |
return "success"; |
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|
247 |
end |
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248 |
return "failure", "not-authorized", "Unable to authorize you with the authentication credentials you've sent."; |
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parents:
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|
249 |
end |
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parents:
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250 |
return sasl; |
373
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mod_auth_phpbb3: Initial commit.
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251 |
end |
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mod_auth_phpbb3: Initial commit.
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diff
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252 |
|
814
881ec9919144
mod_auth_*: Use module:provides(), and don't explicitly specify provider.name.
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parents:
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|
253 |
module:provides("auth", provider); |
373
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mod_auth_phpbb3: Initial commit.
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parents:
diff
changeset
|
254 |