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diff --git a/PasswordHash.php b/PasswordHash.php
new file mode 100644
--- /dev/null
+++ b/PasswordHash.php
@@ -0,0 +1,253 @@
+<?php
+#
+# Portable PHP password hashing framework.
+#
+# Version 0.3 / genuine.
+#
+# Written by Solar Designer <solar at openwall.com> in 2004-2006 and placed in
+# the public domain. Revised in subsequent years, still public domain.
+#
+# There's absolutely no warranty.
+#
+# The homepage URL for this framework is:
+#
+# http://www.openwall.com/phpass/
+#
+# Please be sure to update the Version line if you edit this file in any way.
+# It is suggested that you leave the main version number intact, but indicate
+# your project name (after the slash) and add your own revision information.
+#
+# Please do not change the "private" password hashing method implemented in
+# here, thereby making your hashes incompatible. However, if you must, please
+# change the hash type identifier (the "$P$") to something different.
+#
+# Obviously, since this code is in the public domain, the above are not
+# requirements (there can be none), but merely suggestions.
+#
+class PasswordHash {
+ var $itoa64;
+ var $iteration_count_log2;
+ var $portable_hashes;
+ var $random_state;
+
+ function PasswordHash($iteration_count_log2, $portable_hashes)
+ {
+ $this->itoa64 = './0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz';
+
+ if ($iteration_count_log2 < 4 || $iteration_count_log2 > 31)
+ $iteration_count_log2 = 8;
+ $this->iteration_count_log2 = $iteration_count_log2;
+
+ $this->portable_hashes = $portable_hashes;
+
+ $this->random_state = microtime();
+ if (function_exists('getmypid'))
+ $this->random_state .= getmypid();
+ }
+
+ function get_random_bytes($count)
+ {
+ $output = '';
+ if (is_readable('/dev/urandom') &&
+ ($fh = @fopen('/dev/urandom', 'rb'))) {
+ $output = fread($fh, $count);
+ fclose($fh);
+ }
+
+ if (strlen($output) < $count) {
+ $output = '';
+ for ($i = 0; $i < $count; $i += 16) {
+ $this->random_state =
+ md5(microtime() . $this->random_state);
+ $output .=
+ pack('H*', md5($this->random_state));
+ }
+ $output = substr($output, 0, $count);
+ }
+
+ return $output;
+ }
+
+ function encode64($input, $count)
+ {
+ $output = '';
+ $i = 0;
+ do {
+ $value = ord($input[$i++]);
+ $output .= $this->itoa64[$value & 0x3f];
+ if ($i < $count)
+ $value |= ord($input[$i]) << 8;
+ $output .= $this->itoa64[($value >> 6) & 0x3f];
+ if ($i++ >= $count)
+ break;
+ if ($i < $count)
+ $value |= ord($input[$i]) << 16;
+ $output .= $this->itoa64[($value >> 12) & 0x3f];
+ if ($i++ >= $count)
+ break;
+ $output .= $this->itoa64[($value >> 18) & 0x3f];
+ } while ($i < $count);
+
+ return $output;
+ }
+
+ function gensalt_private($input)
+ {
+ $output = '$P$';
+ $output .= $this->itoa64[min($this->iteration_count_log2 +
+ ((PHP_VERSION >= '5') ? 5 : 3), 30)];
+ $output .= $this->encode64($input, 6);
+
+ return $output;
+ }
+
+ function crypt_private($password, $setting)
+ {
+ $output = '*0';
+ if (substr($setting, 0, 2) == $output)
+ $output = '*1';
+
+ $id = substr($setting, 0, 3);
+ # We use "$P$", phpBB3 uses "$H$" for the same thing
+ if ($id != '$P$' && $id != '$H$')
+ return $output;
+
+ $count_log2 = strpos($this->itoa64, $setting[3]);
+ if ($count_log2 < 7 || $count_log2 > 30)
+ return $output;
+
+ $count = 1 << $count_log2;
+
+ $salt = substr($setting, 4, 8);
+ if (strlen($salt) != 8)
+ return $output;
+
+ # We're kind of forced to use MD5 here since it's the only
+ # cryptographic primitive available in all versions of PHP
+ # currently in use. To implement our own low-level crypto
+ # in PHP would result in much worse performance and
+ # consequently in lower iteration counts and hashes that are
+ # quicker to crack (by non-PHP code).
+ if (PHP_VERSION >= '5') {
+ $hash = md5($salt . $password, TRUE);
+ do {
+ $hash = md5($hash . $password, TRUE);
+ } while (--$count);
+ } else {
+ $hash = pack('H*', md5($salt . $password));
+ do {
+ $hash = pack('H*', md5($hash . $password));
+ } while (--$count);
+ }
+
+ $output = substr($setting, 0, 12);
+ $output .= $this->encode64($hash, 16);
+
+ return $output;
+ }
+
+ function gensalt_extended($input)
+ {
+ $count_log2 = min($this->iteration_count_log2 + 8, 24);
+ # This should be odd to not reveal weak DES keys, and the
+ # maximum valid value is (2**24 - 1) which is odd anyway.
+ $count = (1 << $count_log2) - 1;
+
+ $output = '_';
+ $output .= $this->itoa64[$count & 0x3f];
+ $output .= $this->itoa64[($count >> 6) & 0x3f];
+ $output .= $this->itoa64[($count >> 12) & 0x3f];
+ $output .= $this->itoa64[($count >> 18) & 0x3f];
+
+ $output .= $this->encode64($input, 3);
+
+ return $output;
+ }
+
+ function gensalt_blowfish($input)
+ {
+ # This one needs to use a different order of characters and a
+ # different encoding scheme from the one in encode64() above.
+ # We care because the last character in our encoded string will
+ # only represent 2 bits. While two known implementations of
+ # bcrypt will happily accept and correct a salt string which
+ # has the 4 unused bits set to non-zero, we do not want to take
+ # chances and we also do not want to waste an additional byte
+ # of entropy.
+ $itoa64 = './ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789';
+
+ $output = '$2a$';
+ $output .= chr(ord('0') + $this->iteration_count_log2 / 10);
+ $output .= chr(ord('0') + $this->iteration_count_log2 % 10);
+ $output .= '$';
+
+ $i = 0;
+ do {
+ $c1 = ord($input[$i++]);
+ $output .= $itoa64[$c1 >> 2];
+ $c1 = ($c1 & 0x03) << 4;
+ if ($i >= 16) {
+ $output .= $itoa64[$c1];
+ break;
+ }
+
+ $c2 = ord($input[$i++]);
+ $c1 |= $c2 >> 4;
+ $output .= $itoa64[$c1];
+ $c1 = ($c2 & 0x0f) << 2;
+
+ $c2 = ord($input[$i++]);
+ $c1 |= $c2 >> 6;
+ $output .= $itoa64[$c1];
+ $output .= $itoa64[$c2 & 0x3f];
+ } while (1);
+
+ return $output;
+ }
+
+ function HashPassword($password)
+ {
+ $random = '';
+
+ if (CRYPT_BLOWFISH == 1 && !$this->portable_hashes) {
+ $random = $this->get_random_bytes(16);
+ $hash =
+ crypt($password, $this->gensalt_blowfish($random));
+ if (strlen($hash) == 60)
+ return $hash;
+ }
+
+ if (CRYPT_EXT_DES == 1 && !$this->portable_hashes) {
+ if (strlen($random) < 3)
+ $random = $this->get_random_bytes(3);
+ $hash =
+ crypt($password, $this->gensalt_extended($random));
+ if (strlen($hash) == 20)
+ return $hash;
+ }
+
+ if (strlen($random) < 6)
+ $random = $this->get_random_bytes(6);
+ $hash =
+ $this->crypt_private($password,
+ $this->gensalt_private($random));
+ if (strlen($hash) == 34)
+ return $hash;
+
+ # Returning '*' on error is safe here, but would _not_ be safe
+ # in a crypt(3)-like function used _both_ for generating new
+ # hashes and for validating passwords against existing hashes.
+ return '*';
+ }
+
+ function CheckPassword($password, $stored_hash)
+ {
+ $hash = $this->crypt_private($password, $stored_hash);
+ if ($hash[0] == '*')
+ $hash = crypt($password, $stored_hash);
+
+ return $hash == $stored_hash;
+ }
+}
+
+?>
diff --git a/user_sql.php b/user_sql.php
--- a/user_sql.php
+++ b/user_sql.php
@@ -1,680 +1,684 @@
<?php
/**
* ownCloud - user_sql
*
* @author Andreas Böhler and contributors
* @copyright 2012/2013 Andreas Böhler <andreas (at) aboehler (dot) at>
*
* credits go to Ed W for several SQL injection fixes and caching support
* credits go to Frédéric France for providing Joomla support
* credits go to Mark Jansenn for providing Joomla 2.5.18+ / 3.2.1+ support
* credits go to Dominik Grothaus for providing SSHA256 support and fixing a few bugs
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
* License as published by the Free Software Foundation; either
* version 3 of the License, or any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU AFFERO GENERAL PUBLIC LICENSE for more details.
*
* You should have received a copy of the GNU Affero General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*
*/
class OC_USER_SQL extends OC_User_Backend implements OC_User_Interface
{
protected $cache;
// cached settings
protected $sql_host;
protected $sql_username;
protected $sql_database;
protected $sql_password;
protected $sql_table;
protected $sql_column_username;
protected $sql_column_password;
protected $sql_column_active;
protected $sql_column_displayname;
protected $sql_type;
protected $db_conn;
protected $db;
protected $default_domain;
protected $strip_domain;
protected $crypt_type;
protected $domain_settings;
protected $domain_array;
protected $map_array;
protected $allow_password_change;
public function __construct()
{
$this -> db_conn = false;
$this -> cache = \OC\Cache::getGlobalCache();
$this -> sql_host = OCP\Config::getAppValue('user_sql', 'sql_host', '');
$this -> sql_username = OCP\Config::getAppValue('user_sql', 'sql_user', '');
$this -> sql_database = OCP\Config::getAppValue('user_sql', 'sql_database', '');
$this -> sql_password = OCP\Config::getAppValue('user_sql', 'sql_password', '');
$this -> sql_table = OCP\Config::getAppValue('user_sql', 'sql_table', '');
$this -> sql_column_username = OCP\Config::getAppValue('user_sql', 'sql_column_username', '');
$this -> sql_column_password = OCP\Config::getAppValue('user_sql', 'sql_column_password', '');
$this -> sql_column_displayname = OCP\Config::getAppValue('user_sql', 'sql_column_displayname', $this->sql_column_username);
$this -> sql_column_active = OCP\Config::getAppValue('user_sql', 'sql_column_active', '');
$this -> sql_type = OCP\Config::getAppValue('user_sql', 'sql_type', '');
$this -> default_domain = OCP\Config::getAppValue('user_sql', 'default_domain', '');
$this -> strip_domain = OCP\Config::getAppValue('user_sql', 'strip_domain', 0);
$this -> allow_password_change = OCP\Config::getAppValue('user_sql', 'allow_password_change', 0);
$this -> crypt_type = OCP\Config::getAppValue('user_sql', 'crypt_type', 'md5crypt');
$this -> domain_settings = OCP\Config::getAppValue('user_sql', 'domain_settings', 'none');
$this -> domain_array = explode(",", OCP\Config::getAppValue('user_sql', 'domain_array', ''));
$this -> map_array = explode(",", OCP\Config::getAppValue('user_sql', 'map_array', ''));
$dsn = $this -> sql_type . ":host=" . $this -> sql_host . ";dbname=" . $this -> sql_database;
try
{
$this -> db = new PDO($dsn, $this -> sql_username, $this -> sql_password);
$this -> db_conn = true;
} catch (PDOException $e)
{
OC_Log::write('OC_USER_SQL', 'Failed to connect to the database: ' . $e -> getMessage(), OC_Log::ERROR);
}
return false;
}
private function doUserDomainMapping($uid)
{
$uid = trim($uid);
switch($this->domain_settings)
{
case "default" :
OC_Log::write('OC_USER_SQL', "Default mapping", OC_Log::DEBUG);
if($this -> default_domain && (strpos($uid, '@') === false))
$uid .= "@" . $this -> default_domain;
break;
case "server" :
OC_Log::write('OC_USER_SQL', "Server based mapping", OC_Log::DEBUG);
if(strpos($uid, '@') === false)
$uid .= "@" . $_SERVER['SERVER_NAME'];
break;
case "mapping" :
OC_Log::write('OC_USER_SQL', 'Domain mapping selected', OC_Log::DEBUG);
if(strpos($uid, '@') === false)
{
for($i = 0; $i < count($this -> domain_array); $i++)
{
OC_Log::write('OC_USER_SQL', 'Checking domain in mapping: ' . $this -> domain_array[$i], OC_Log::DEBUG);
if($_SERVER['SERVER_NAME'] == trim($this -> domain_array[$i]))
{
OC_Log::write('OC_USER_SQL', 'Found domain in mapping: ' . $this -> domain_array[$i], OC_Log::DEBUG);
$uid .= "@" . trim($this -> map_array[$i]);
break;
}
}
}
break;
case "none" :
default :
OC_Log::write('OC_USER_SQL', "No mapping", OC_Log::DEBUG);
break;
}
$uid = strtolower($uid);
OC_Log::write('OC_USER_SQL', 'Returning mapped UID: ' . $uid, OC_Log::DEBUG);
return $uid;
}
public function implementsAction($actions)
{
return (bool)((OC_USER_BACKEND_CHECK_PASSWORD | OC_USER_BACKEND_GET_DISPLAYNAME) & $actions);
}
public function hasUserListings()
{
return true;
}
public function createUser()
{
// Can't create user
OC_Log::write('OC_USER_SQL', 'Not possible to create local users from web frontend using SQL user backend', OC_Log::ERROR);
return false;
}
public function deleteUser($uid)
{
// Can't delete user
OC_Log::write('OC_USER_SQL', 'Not possible to delete local users from web frontend using SQL user backend', OC_Log::ERROR);
return false;
}
public function setPassword($uid, $password)
{
// Update the user's password - this might affect other services, that
// use the same database, as well
OC_Log::write('OC_USER_SQL', "Entering setPassword for UID: $uid", OC_Log::DEBUG);
if(!$this -> db_conn || !$this->allow_password_change)
{
return false;
}
$uid = $this -> doUserDomainMapping($uid);
$query = "SELECT $this->sql_column_password FROM $this->sql_table WHERE $this->sql_column_username = :uid";
OC_Log::write('OC_USER_SQL', "Preparing query: $query", OC_Log::DEBUG);
$result = $this -> db -> prepare($query);
$result -> bindParam(":uid", $uid);
OC_Log::write('OC_USER_SQL', "Executing query...", OC_Log::DEBUG);
if(!$result -> execute())
{
return false;
}
OC_Log::write('OC_USER_SQL', "Fetching result...", OC_Log::DEBUG);
$row = $result -> fetch();
if(!$row)
{
return false;
}
$old_password = $row[$this -> sql_column_password];
if($this -> crypt_type == 'joomla2')
{
+ if(!class_exists('PasswordHash')
+ require_once('PasswordHash.php');
$hasher = new PasswordHash(10, true);
$enc_password = $hasher->HashPassword($password);
} else
{
$enc_password = $this -> pacrypt($password, $old_password);
}
$query = "UPDATE $this->sql_table SET $this->sql_column_password = :enc_password WHERE $this->sql_column_username = :uid";
OC_Log::write('OC_USER_SQL', "Preapring query: $query", OC_Log::DEBUG);
$result = $this -> db -> prepare($query);
$result -> bindParam(":enc_password", $enc_password);
$result -> bindParam(":uid", $uid);
OC_Log::write('OC_USER_SQL', "Executing query...", OC_Log::DEBUG);
if(!$result -> execute())
{
$err = $result -> errorInfo();
OC_Log::write('OC_USER_SQL', "Query failed: " . $err[2], OC_Log::DEBUG);
OC_Log::write('OC_USER_SQL', "Could not update password!", OC_Log::ERROR);
return false;
}
OC_Log::write('OC_USER_SQL', "Updated password successfully, return true", OC_Log::DEBUG);
return true;
}
/**
* @brief Check if the password is correct
* @param $uid The username
* @param $password The password
* @returns true/false
*
* Check if the password is correct without logging in the user
*/
public function checkPassword($uid, $password)
{
OC_Log::write('OC_USER_SQL', "Entering checkPassword() for UID: $uid", OC_Log::DEBUG);
if(!$this -> db_conn)
{
return false;
}
$uid = $this -> doUserDomainMapping($uid);
$query = "SELECT $this->sql_column_username, $this->sql_column_password FROM $this->sql_table WHERE $this->sql_column_username = :uid";
if($this -> sql_column_active != '')
$query .= " AND $this->sql_column_active = 1";
OC_Log::write('OC_USER_SQL', "Preparing query: $query", OC_Log::DEBUG);
$result = $this -> db -> prepare($query);
$result -> bindParam(":uid", $uid);
OC_Log::write('OC_USER_SQL', "Executing query...", OC_Log::DEBUG);
if(!$result -> execute())
{
$err = $result -> errorInfo();
OC_Log::write('OC_USER_SQL', "Query failed: " . $err[2], OC_Log::DEBUG);
return false;
}
OC_Log::write('OC_USER_SQL', "Fetching row...", OC_Log::DEBUG);
$row = $result -> fetch();
if(!$row)
{
OC_Log::write('OC_USER_SQL', "Got no row, return false", OC_Log::DEBUG);
return false;
}
OC_Log::write('OC_USER_SQL', "Encrypting and checking password", OC_Log::DEBUG);
// Joomla 2.5.18 switched to phPass, which doesn't play nice with the way
// we check passwords
if($this -> crypt_type == 'joomla2')
{
+ if(!class_exists('PasswordHash'))
+ require_once('PasswordHash.php');
$hasher = new PasswordHash(10, true);
$ret = $hasher -> CheckPassword($password, $row[$this -> sql_column_password]);
} else
{
$ret = $this -> pacrypt($password, $row[$this -> sql_column_password]) == $row[$this -> sql_column_password];
}
if($ret)
{
OC_Log::write('OC_USER_SQL', "Passwords matching, return true", OC_Log::DEBUG);
if($this -> strip_domain)
{
$uid = explode("@", $uid);
$uid = $uid[0];
}
return $uid;
} else
{
OC_Log::write('OC_USER_SQL', "Passwords do not match, return false", OC_Log::DEBUG);
return false;
}
}
/**
* @brief Get a list of all users
* @returns array with all uids
*
* Get a list of all users.
*/
public function getUsers($search = '', $limit = null, $offset = null)
{
OC_Log::write('OC_USER_SQL', "Entering getUsers() with Search: $search, Limit: $limit, Offset: $offset", OC_Log::DEBUG);
$users = array();
if(!$this -> db_conn)
{
return false;
}
$query = "SELECT $this->sql_column_username FROM $this->sql_table";
$query .= " WHERE $this->sql_column_username LIKE :search";
if($this -> sql_column_active != '')
{
$query .= " AND $this->sql_column_active = 1";
}
$query .= " ORDER BY $this->sql_column_username";
if($limit != null)
{
$limit = intval($limit);
$query .= " LIMIT $limit";
}
if($offset != null)
{
$offset = intval($offset);
$query .= " OFFSET $offset";
}
OC_Log::write('OC_USER_SQL', "Preparing query: $query", OC_Log::DEBUG);
$result = $this -> db -> prepare($query);
if($search != '')
{
$search = "%".$this -> doUserDomainMapping($search."%")."%";
}
else
{
$search = "%".$this -> doUserDomainMapping("")."%";
}
$result -> bindParam(":search", $search);
OC_Log::write('OC_USER_SQL', "Executing query...", OC_Log::DEBUG);
if(!$result -> execute())
{
$err = $result -> errorInfo();
OC_Log::write('OC_USER_SQL', "Query failed: " . $err[2], OC_Log::DEBUG);
return array();
}
OC_Log::write('OC_USER_SQL', "Fetching results...", OC_Log::DEBUG);
while($row = $result -> fetch())
{
$uid = $row[$this -> sql_column_username];
if($this -> strip_domain)
{
$uid = explode("@", $uid);
$uid = $uid[0];
}
$users[] = strtolower($uid);
}
OC_Log::write('OC_USER_SQL', "Return list of results", OC_Log::DEBUG);
return $users;
}
/**
* @brief check if a user exists
* @param string $uid the username
* @return boolean
*/
public function userExists($uid)
{
$cacheKey = 'sql_user_exists_' . $uid;
$cacheVal = $this -> cache -> get($cacheKey);
if(!is_null($cacheVal))
return (bool)$cacheVal;
OC_Log::write('OC_USER_SQL', "Entering userExists() for UID: $uid", OC_Log::DEBUG);
if(!$this -> db_conn)
{
return false;
}
$uid = $this -> doUserDomainMapping($uid);
$query = "SELECT $this->sql_column_username FROM $this->sql_table WHERE $this->sql_column_username = :uid";
if($this -> sql_column_active != '')
$query .= " AND $this->sql_column_active = 1";
OC_Log::write('OC_USER_SQL', "Preparing query: $query", OC_Log::DEBUG);
$result = $this -> db -> prepare($query);
$result -> bindParam(":uid", $uid);
OC_Log::write('OC_USER_SQL', "Executing query...", OC_Log::DEBUG);
if(!$result -> execute())
{
$err = $result -> errorInfo();
OC_Log::write('OC_USER_SQL', "Query failed: " . $err[2], OC_Log::DEBUG);
return false;
}
OC_Log::write('OC_USER_SQL', "Fetching results...", OC_Log::DEBUG);
$exists = (bool)$result -> fetch();
$this -> cache -> set($cacheKey, $exists, 60);
if(!$exists)
{
OC_Log::write('OC_USER_SQL', "Empty row, user does not exists, return false", OC_Log::DEBUG);
return false;
} else
{
OC_Log::write('OC_USER_SQL', "User exists, return true", OC_Log::DEBUG);
return true;
}
}
public function getDisplayName($uid)
{
OC_Log::write('OC_USER_SQL', "Entering getDisplayName() for UID: $uid", OC_Log::DEBUG);
if(!$this -> db_conn)
{
return false;
}
$uid = $this -> doUserDomainMapping($uid);
if(!$this -> userExists($uid))
{
return false;
}
$query = "SELECT $this->sql_column_displayname FROM $this->sql_table WHERE $this->sql_column_username = :uid";
if($this -> sql_column_active != '')
$query .= " AND $this->sql_column_active = 1";
OC_Log::write('OC_USER_SQL', "Preparing query: $query", OC_Log::DEBUG);
$result = $this -> db -> prepare($query);
$result -> bindParam(":uid", $uid);
OC_Log::write('OC_USER_SQL', "Executing query...", OC_Log::DEBUG);
if(!$result -> execute())
{
$err = $result -> errorInfo();
OC_Log::write('OC_USER_SQL', "Query failed: " . $err[2], OC_Log::DEBUG);
return false;
}
OC_Log::write('OC_USER_SQL', "Fetching results...", OC_Log::DEBUG);
$row = $result -> fetch();
if(!$row)
{
OC_Log::write('OC_USER_SQL', "Empty row, user has no display name or does not exist, return false", OC_Log::DEBUG);
return false;
} else
{
OC_Log::write('OC_USER_SQL', "User exists, return true", OC_Log::DEBUG);
$displayName = utf8_encode($row[$this -> sql_column_displayname]);
return $displayName; ;
}
return false;
}
public function getDisplayNames($search = '', $limit = null, $offset = null)
{
$uids = $this -> getUsers($search, $limit, $offset);
$displayNames = array();
foreach($uids as $uid)
{
$displayNames[$uid] = $this -> getDisplayName($uid);
}
return $displayNames;
}
/**
* The following functions were directly taken from PostfixAdmin and just
* slightly modified
* to suit our needs.
* Encrypt a password, using the apparopriate hashing mechanism as defined in
* config.inc.php ($this->crypt_type).
* When wanting to compare one pw to another, it's necessary to provide the
* salt used - hence
* the second parameter ($pw_db), which is the existing hash from the DB.
*
* @param string $pw
* @param string $encrypted password
* @return string encrypted password.
*/
private function pacrypt($pw, $pw_db = "")
{
OC_Log::write('OC_USER_SQL', "Entering private pacrypt()", OC_Log::DEBUG);
$pw = stripslashes($pw);
$password = "";
$salt = "";
if($this -> crypt_type == 'md5crypt')
{
$split_salt = preg_split('/\$/', $pw_db);
if(isset($split_salt[2]))
{
$salt = $split_salt[2];
}
$password = $this -> md5crypt($pw, $salt);
} elseif($this -> crypt_type == 'md5')
{
$password = md5($pw);
} elseif($this -> crypt_type == 'system')
{
// We never generate salts, as user creation is not allowed here
$password = crypt($pw, $pw_db);
} elseif($this -> crypt_type == 'cleartext')
{
$password = $pw;
}
// See
// https://sourceforge.net/tracker/?func=detail&atid=937966&aid=1793352&group_id=191583
// this is apparently useful for pam_mysql etc.
elseif($this -> crypt_type == 'mysql_encrypt')
{
if(!$this -> db_conn)
{
return false;
}
if($pw_db != "")
{
$salt = substr($pw_db, 0, 2);
$query = "SELECT ENCRYPT(:pw, :salt);";
} else
{
$query = "SELECT ENCRYPT(:pw);";
}
$result = $this -> db -> prepare($query);
$result -> bindParam(":pw", $pw);
if($pw_db != "")
$result -> bindParam(":salt", $salt);
if(!$result -> execute())
{
return false;
}
$row = $result -> fetch();
if(!$row)
{
return false;
}
$password = $row[0];
} elseif($this -> crypt_type == 'mysql_password')
{
if(!$this -> db_conn)
{
return false;
}
$query = "SELECT PASSWORD(:pw);";
$result = $this -> db -> prepare($query);
$result -> bindParam(":pw", $pw);
if(!$result -> execute())
{
return false;
}
$row = $result -> fetch();
if(!$row)
{
return false;
}
$password = $row[0];
}
// The following is by Frédéric France
elseif($this -> crypt_type == 'joomla')
{
$split_salt = preg_split('/:/', $pw_db);
if(isset($split_salt[1]))
{
$salt = $split_salt[1];
}
$password = ($salt) ? md5($pw . $salt) : md5($pw);
$password .= ':' . $salt;
}
elseif($this-> crypt_type == 'ssha256')
{
$salted_password = base64_decode(preg_replace('/{SSHA256}/i','',$pw_db));
$salt = substr($salted_password,-(strlen($salted_password)-32));
$password = $this->ssha256($pw,$salt);
} else
{
OC_Log::write('OC_USER_SQL', "unknown/invalid crypt_type settings: $this->crypt_type", OC_Log::ERROR);
die('unknown/invalid Encryption type setting: ' . $this -> crypt_type);
}
OC_Log::write('OC_USER_SQL', "pacrypt() done, return", OC_Log::DEBUG);
return $password;
}
//
// md5crypt
// Action: Creates MD5 encrypted password
// Call: md5crypt (string cleartextpassword)
//
private function md5crypt($pw, $salt = "", $magic = "")
{
$MAGIC = "$1$";
if($magic == "")
$magic = $MAGIC;
if($salt == "")
$salt = $this -> create_salt();
$slist = explode("$", $salt);
if($slist[0] == "1")
$salt = $slist[1];
$salt = substr($salt, 0, 8);
$ctx = $pw . $magic . $salt;
$final = $this -> pahex2bin(md5($pw . $salt . $pw));
for($i = strlen($pw); $i > 0; $i -= 16)
{
if($i > 16)
{
$ctx .= substr($final, 0, 16);
} else
{
$ctx .= substr($final, 0, $i);
}
}
$i = strlen($pw);
while($i > 0)
{
if($i & 1)
$ctx .= chr(0);
else
$ctx .= $pw[0];
$i = $i>>1;
}
$final = $this -> pahex2bin(md5($ctx));
for($i = 0; $i < 1000; $i++)
{
$ctx1 = "";
if($i & 1)
{
$ctx1 .= $pw;
} else
{
$ctx1 .= substr($final, 0, 16);
}
if($i % 3)
$ctx1 .= $salt;
if($i % 7)
$ctx1 .= $pw;
if($i & 1)
{
$ctx1 .= substr($final, 0, 16);
} else
{
$ctx1 .= $pw;
}
$final = $this -> pahex2bin(md5($ctx1));
}
$passwd = "";
$passwd .= $this -> to64(((ord($final[0])<<16) | (ord($final[6])<<8) | (ord($final[12]))), 4);
$passwd .= $this -> to64(((ord($final[1])<<16) | (ord($final[7])<<8) | (ord($final[13]))), 4);
$passwd .= $this -> to64(((ord($final[2])<<16) | (ord($final[8])<<8) | (ord($final[14]))), 4);
$passwd .= $this -> to64(((ord($final[3])<<16) | (ord($final[9])<<8) | (ord($final[15]))), 4);
$passwd .= $this -> to64(((ord($final[4])<<16) | (ord($final[10])<<8) | (ord($final[5]))), 4);
$passwd .= $this -> to64(ord($final[11]), 2);
return "$magic$salt\$$passwd";
}
private function create_salt()
{
srand((double) microtime() * 1000000);
$salt = substr(md5(rand(0, 9999999)), 0, 8);
return $salt;
}
private function ssha256($pw, $salt)
{
return '{SSHA256}'.base64_encode(hash('sha256',$pw.$salt,true).$salt);
}
private function pahex2bin($str)
{
if(function_exists('hex2bin'))
{
return hex2bin($str);
} else
{
$len = strlen($str);
$nstr = "";
for($i = 0; $i < $len; $i += 2)
{
$num = sscanf(substr($str, $i, 2), "%x");
$nstr .= chr($num[0]);
}
return $nstr;
}
}
private function to64($v, $n)
{
$ITOA64 = "./0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
$ret = "";
while(($n - 1) >= 0)
{
$n--;
$ret .= $ITOA64[$v & 0x3f];
$v = $v>>6;
}
return $ret;
}
}
?>

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