| 1 | <?php |
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| 2 | /* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4 foldmethod=marker: */ |
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| 3 | |
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| 4 | /** |
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| 5 | * Storage driver for use against PEAR DB |
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| 6 | * |
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| 7 | * PHP versions 4 and 5 |
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| 8 | * |
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| 9 | * LICENSE: This source file is subject to version 3.01 of the PHP license |
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| 10 | * that is available through the world-wide-web at the following URI: |
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| 11 | * http://www.php.net/license/3_01.txt. If you did not receive a copy of |
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| 12 | * the PHP License and are unable to obtain it through the web, please |
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| 13 | * send a note to [email protected] so we can mail you a copy immediately. |
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| 14 | * |
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| 15 | * @category Authentication |
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| 16 | * @package Auth |
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| 17 | * @author Martin Jansen <[email protected]> |
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| 18 | * @author Adam Ashley <[email protected]> |
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| 19 | * @copyright 2001-2006 The PHP Group |
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| 20 | * @license http://www.php.net/license/3_01.txt PHP License 3.01 |
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| 21 | * @version CVS: $Id: DB.php 8720 2006-12-01 05:20:37Z kakinaka $ |
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| 22 | * @link http://pear.php.net/package/Auth |
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| 23 | */ |
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| 24 | |
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| 25 | /** |
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| 26 | * Include Auth_Container base class |
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| 27 | */ |
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| 28 | $include_dir = realpath(dirname( __FILE__)); |
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| 29 | require_once $include_dir . '/../Container.php'; |
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| 30 | /** |
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| 31 | * Include PEAR DB |
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| 32 | */ |
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| 33 | require_once 'DB.php'; |
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| 34 | |
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| 35 | /** |
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| 36 | * Storage driver for fetching login data from a database |
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| 37 | * |
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| 38 | * This storage driver can use all databases which are supported |
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| 39 | * by the PEAR DB abstraction layer to fetch login data. |
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| 40 | * |
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| 41 | * @category Authentication |
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| 42 | * @package Auth |
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| 43 | * @author Martin Jansen <[email protected]> |
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| 44 | * @author Adam Ashley <[email protected]> |
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| 45 | * @copyright 2001-2006 The PHP Group |
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| 46 | * @license http://www.php.net/license/3_01.txt PHP License 3.01 |
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| 47 | * @version Release: 1.4.2 File: $Revision: 8720 $ |
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| 48 | * @link http://pear.php.net/package/Auth |
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| 49 | */ |
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| 50 | class Auth_Container_DB extends Auth_Container |
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| 51 | { |
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| 52 | |
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| 53 | // {{{ properties |
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| 54 | |
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| 55 | /** |
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| 56 | * Additional options for the storage container |
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| 57 | * @var array |
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| 58 | */ |
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| 59 | var $options = array(); |
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| 60 | |
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| 61 | /** |
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| 62 | * DB object |
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| 63 | * @var object |
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| 64 | */ |
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| 65 | var $db = null; |
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| 66 | var $dsn = ''; |
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| 67 | |
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| 68 | /** |
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| 69 | * User that is currently selected from the DB. |
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| 70 | * @var string |
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| 71 | */ |
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| 72 | var $activeUser = ''; |
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| 73 | |
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| 74 | // }}} |
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| 75 | // {{{ Auth_Container_DB [constructor] |
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| 76 | |
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| 77 | /** |
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| 78 | * Constructor of the container class |
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| 79 | * |
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| 80 | * Save the initial options passed to the container. Initiation of the DB |
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| 81 | * connection is no longer performed here and is only done when needed. |
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| 82 | * |
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| 83 | * @param string Connection data or DB object |
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| 84 | * @return object Returns an error object if something went wrong |
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| 85 | */ |
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| 86 | function Auth_Container_DB($dsn) |
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| 87 | { |
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| 88 | $this->_setDefaults(); |
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| 89 | |
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| 90 | if (is_array($dsn)) { |
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| 91 | $this->_parseOptions($dsn); |
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| 92 | |
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| 93 | if (empty($this->options['dsn'])) { |
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| 94 | PEAR::raiseError('No connection parameters specified!'); |
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| 95 | } |
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| 96 | } else { |
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| 97 | $this->options['dsn'] = $dsn; |
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| 98 | } |
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| 99 | } |
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| 100 | |
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| 101 | // }}} |
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| 102 | // {{{ _connect() |
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| 103 | |
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| 104 | /** |
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| 105 | * Connect to database by using the given DSN string |
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| 106 | * |
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| 107 | * @access private |
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| 108 | * @param string DSN string |
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| 109 | * @return mixed Object on error, otherwise bool |
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| 110 | */ |
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| 111 | function _connect($dsn) |
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| 112 | { |
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| 113 | if (is_string($dsn) || is_array($dsn)) { |
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| 114 | $this->db = DB::Connect($dsn, $this->options['db_options']); |
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| 115 | } elseif (is_subclass_of($dsn, 'db_common')) { |
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| 116 | $this->db = $dsn; |
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| 117 | } elseif (DB::isError($dsn)) { |
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| 118 | return PEAR::raiseError($dsn->getMessage(), $dsn->getCode()); |
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| 119 | } else { |
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| 120 | return PEAR::raiseError('The given dsn was not valid in file ' . __FILE__ . ' at line ' . __LINE__, |
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| 121 | 41, |
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| 122 | PEAR_ERROR_RETURN, |
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| 123 | null, |
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| 124 | null |
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| 125 | ); |
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| 126 | } |
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| 127 | |
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| 128 | if (DB::isError($this->db) || PEAR::isError($this->db)) { |
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| 129 | return PEAR::raiseError($this->db->getMessage(), $this->db->getCode()); |
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| 130 | } else { |
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| 131 | return true; |
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| 132 | } |
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| 133 | } |
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| 134 | |
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| 135 | // }}} |
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| 136 | // {{{ _prepare() |
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| 137 | |
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| 138 | /** |
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| 139 | * Prepare database connection |
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| 140 | * |
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| 141 | * This function checks if we have already opened a connection to |
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| 142 | * the database. If that's not the case, a new connection is opened. |
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| 143 | * |
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| 144 | * @access private |
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| 145 | * @return mixed True or a DB error object. |
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| 146 | */ |
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| 147 | function _prepare() |
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| 148 | { |
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| 149 | if (!DB::isConnection($this->db)) { |
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| 150 | $res = $this->_connect($this->options['dsn']); |
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| 151 | if (DB::isError($res) || PEAR::isError($res)) { |
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| 152 | return $res; |
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| 153 | } |
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| 154 | } |
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| 155 | if ($this->options['auto_quote'] && $this->db->dsn['phptype'] != 'sqlite') { |
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| 156 | $this->options['final_table'] = $this->db->quoteIdentifier($this->options['table']); |
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| 157 | $this->options['final_usernamecol'] = $this->db->quoteIdentifier($this->options['usernamecol']); |
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| 158 | $this->options['final_passwordcol'] = $this->db->quoteIdentifier($this->options['passwordcol']); |
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| 159 | } else { |
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| 160 | $this->options['final_table'] = $this->options['table']; |
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| 161 | $this->options['final_usernamecol'] = $this->options['usernamecol']; |
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| 162 | $this->options['final_passwordcol'] = $this->options['passwordcol']; |
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| 163 | } |
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| 164 | return true; |
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| 165 | } |
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| 166 | |
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| 167 | // }}} |
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| 168 | // {{{ query() |
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| 169 | |
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| 170 | /** |
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| 171 | * Prepare query to the database |
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| 172 | * |
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| 173 | * This function checks if we have already opened a connection to |
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| 174 | * the database. If that's not the case, a new connection is opened. |
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| 175 | * After that the query is passed to the database. |
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| 176 | * |
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| 177 | * @access public |
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| 178 | * @param string Query string |
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| 179 | * @return mixed a DB_result object or DB_OK on success, a DB |
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| 180 | * or PEAR error on failure |
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| 181 | */ |
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| 182 | function query($query) |
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| 183 | { |
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| 184 | $err = $this->_prepare(); |
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| 185 | if ($err !== true) { |
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| 186 | return $err; |
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| 187 | } |
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| 188 | return $this->db->query($query); |
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| 189 | } |
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| 190 | |
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| 191 | // }}} |
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| 192 | // {{{ _setDefaults() |
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| 193 | |
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| 194 | /** |
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| 195 | * Set some default options |
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| 196 | * |
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| 197 | * @access private |
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| 198 | * @return void |
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| 199 | */ |
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| 200 | function _setDefaults() |
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| 201 | { |
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| 202 | $this->options['table'] = 'auth'; |
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| 203 | $this->options['usernamecol'] = 'username'; |
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| 204 | $this->options['passwordcol'] = 'password'; |
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| 205 | $this->options['dsn'] = ''; |
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| 206 | $this->options['db_fields'] = ''; |
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| 207 | $this->options['cryptType'] = 'md5'; |
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| 208 | $this->options['db_options'] = array(); |
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| 209 | $this->options['auto_quote'] = true; |
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| 210 | } |
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| 211 | |
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| 212 | // }}} |
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| 213 | // {{{ _parseOptions() |
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| 214 | |
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| 215 | /** |
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| 216 | * Parse options passed to the container class |
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| 217 | * |
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| 218 | * @access private |
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| 219 | * @param array |
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| 220 | */ |
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| 221 | function _parseOptions($array) |
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| 222 | { |
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| 223 | foreach ($array as $key => $value) { |
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| 224 | if (isset($this->options[$key])) { |
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| 225 | $this->options[$key] = $value; |
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| 226 | } |
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| 227 | } |
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| 228 | } |
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| 229 | |
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| 230 | // }}} |
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| 231 | // {{{ _quoteDBFields() |
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| 232 | |
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| 233 | /** |
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| 234 | * Quote the db_fields option to avoid the possibility of SQL injection. |
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| 235 | * |
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| 236 | * @access private |
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| 237 | * @return string A properly quoted string that can be concatenated into a |
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| 238 | * SELECT clause. |
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| 239 | */ |
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| 240 | function _quoteDBFields() |
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| 241 | { |
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| 242 | if (isset($this->options['db_fields'])) { |
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| 243 | if (is_array($this->options['db_fields'])) { |
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| 244 | if ($this->options['auto_quote']) { |
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| 245 | $fields = array(); |
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| 246 | foreach ($this->options['db_fields'] as $field) { |
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| 247 | $fields[] = $this->db->quoteIdentifier($field); |
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| 248 | } |
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| 249 | return implode(', ', $fields); |
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| 250 | } else { |
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| 251 | return implode(', ', $this->options['db_fields']); |
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| 252 | } |
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| 253 | } else { |
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| 254 | if (strlen($this->options['db_fields']) > 0) { |
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| 255 | if ($this->options['auto_quote']) { |
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| 256 | return $this->db->quoteIdentifier($this->options['db_fields']); |
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| 257 | } else { |
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| 258 | return $this->options['db_fields']; |
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| 259 | } |
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| 260 | } |
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| 261 | } |
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| 262 | } |
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| 263 | |
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| 264 | return ''; |
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| 265 | } |
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| 266 | |
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| 267 | // }}} |
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| 268 | // {{{ fetchData() |
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| 269 | |
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| 270 | /** |
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| 271 | * Get user information from database |
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| 272 | * |
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| 273 | * This function uses the given username to fetch |
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| 274 | * the corresponding login data from the database |
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| 275 | * table. If an account that matches the passed username |
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| 276 | * and password is found, the function returns true. |
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| 277 | * Otherwise it returns false. |
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| 278 | * |
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| 279 | * @param string Username |
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| 280 | * @param string Password |
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| 281 | * @param boolean If true password is secured using a md5 hash |
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| 282 | * the frontend and auth are responsible for making sure the container supports |
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| 283 | * challenge response password authentication |
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| 284 | * @return mixed Error object or boolean |
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| 285 | */ |
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| 286 | function fetchData($username, $password, $isChallengeResponse=false) |
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| 287 | { |
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| 288 | // Prepare for a database query |
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| 289 | $err = $this->_prepare(); |
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| 290 | if ($err !== true) { |
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| 291 | return PEAR::raiseError($err->getMessage(), $err->getCode()); |
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| 292 | } |
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| 293 | |
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| 294 | // Find if db_fields contains a *, if so assume all columns are selected |
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| 295 | if (is_string($this->options['db_fields']) |
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| 296 | && strstr($this->options['db_fields'], '*')) { |
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| 297 | $sql_from = "*"; |
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| 298 | } else { |
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| 299 | $sql_from = $this->options['final_usernamecol']. |
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| 300 | ", ".$this->options['final_passwordcol']; |
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| 301 | |
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| 302 | if (strlen($fields = $this->_quoteDBFields()) > 0) { |
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| 303 | $sql_from .= ', '.$fields; |
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| 304 | } |
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| 305 | } |
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| 306 | |
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| 307 | $query = "SELECT ".$sql_from. |
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| 308 | " FROM ".$this->options['final_table']. |
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| 309 | " WHERE ".$this->options['final_usernamecol']." = ".$this->db->quoteSmart($username); |
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| 310 | |
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| 311 | $res = $this->db->getRow($query, null, DB_FETCHMODE_ASSOC); |
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| 312 | |
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| 313 | if (DB::isError($res)) { |
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| 314 | return PEAR::raiseError($res->getMessage(), $res->getCode()); |
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| 315 | } |
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| 316 | |
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| 317 | if (!is_array($res)) { |
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| 318 | $this->activeUser = ''; |
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| 319 | return false; |
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| 320 | } |
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| 321 | |
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| 322 | // Perform trimming here before the hashihg |
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| 323 | $password = trim($password, "\r\n"); |
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| 324 | $res[$this->options['passwordcol']] = trim($res[$this->options['passwordcol']], "\r\n"); |
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| 325 | |
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| 326 | // If using Challenge Response md5 the pass with the secret |
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| 327 | if ($isChallengeResponse) { |
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| 328 | $res[$this->options['passwordcol']] = md5($res[$this->options['passwordcol']] |
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| 329 | .$this->_auth_obj->session['loginchallenege']); |
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| 330 | |
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| 331 | // UGLY cannot avoid without modifying verifyPassword |
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| 332 | if ($this->options['cryptType'] == 'md5') { |
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| 333 | $res[$this->options['passwordcol']] = md5($res[$this->options['passwordcol']]); |
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| 334 | } |
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| 335 | |
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| 336 | //print " Hashed Password [{$res[$this->options['passwordcol']]}]<br/>\n"; |
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| 337 | } |
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| 338 | |
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| 339 | if ($this->verifyPassword($password, |
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| 340 | $res[$this->options['passwordcol']], |
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| 341 | $this->options['cryptType'])) { |
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| 342 | // Store additional field values in the session |
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| 343 | foreach ($res as $key => $value) { |
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| 344 | if ($key == $this->options['passwordcol'] || |
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| 345 | $key == $this->options['usernamecol']) { |
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| 346 | continue; |
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| 347 | } |
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| 348 | // Use reference to the auth object if exists |
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| 349 | // This is because the auth session variable can change so a |
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| 350 | // static call to setAuthData does not make sence |
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| 351 | $this->_auth_obj->setAuthData($key, $value); |
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| 352 | } |
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| 353 | return true; |
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| 354 | } |
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| 355 | $this->activeUser = $res[$this->options['usernamecol']]; |
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| 356 | return false; |
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| 357 | } |
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| 358 | |
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| 359 | // }}} |
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| 360 | // {{{ listUsers() |
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| 361 | |
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| 362 | /** |
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| 363 | * Returns a list of users from the container |
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| 364 | * |
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| 365 | * @return mixed |
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| 366 | * @access public |
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| 367 | */ |
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| 368 | function listUsers() |
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| 369 | { |
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| 370 | $err = $this->_prepare(); |
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| 371 | if ($err !== true) { |
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| 372 | return PEAR::raiseError($err->getMessage(), $err->getCode()); |
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| 373 | } |
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| 374 | |
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| 375 | $retVal = array(); |
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| 376 | |
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| 377 | // Find if db_fields contains a *, if so assume all col are selected |
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| 378 | if ( is_string($this->options['db_fields']) |
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| 379 | && strstr($this->options['db_fields'], '*')) { |
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| 380 | $sql_from = "*"; |
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| 381 | } else { |
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| 382 | $sql_from = $this->options['final_usernamecol']. |
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| 383 | ", ".$this->options['final_passwordcol']; |
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| 384 | |
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| 385 | if (strlen($fields = $this->_quoteDBFields()) > 0) { |
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| 386 | $sql_from .= ', '.$fields; |
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| 387 | } |
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| 388 | } |
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| 389 | |
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| 390 | $query = sprintf("SELECT %s FROM %s", |
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| 391 | $sql_from, |
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| 392 | $this->options['final_table'] |
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| 393 | ); |
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| 394 | $res = $this->db->getAll($query, null, DB_FETCHMODE_ASSOC); |
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| 395 | |
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| 396 | if (DB::isError($res)) { |
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| 397 | return PEAR::raiseError($res->getMessage(), $res->getCode()); |
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| 398 | } else { |
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| 399 | foreach ($res as $user) { |
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| 400 | $user['username'] = $user[$this->options['usernamecol']]; |
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| 401 | $retVal[] = $user; |
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| 402 | } |
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| 403 | } |
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| 404 | return $retVal; |
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| 405 | } |
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| 406 | |
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| 407 | // }}} |
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| 408 | // {{{ addUser() |
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| 409 | |
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| 410 | /** |
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| 411 | * Add user to the storage container |
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| 412 | * |
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| 413 | * @access public |
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| 414 | * @param string Username |
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| 415 | * @param string Password |
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| 416 | * @param mixed Additional information that are stored in the DB |
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| 417 | * |
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| 418 | * @return mixed True on success, otherwise error object |
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| 419 | */ |
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| 420 | function addUser($username, $password, $additional = "") |
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| 421 | { |
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| 422 | $err = $this->_prepare(); |
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| 423 | if ($err !== true) { |
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| 424 | return PEAR::raiseError($err->getMessage(), $err->getCode()); |
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| 425 | } |
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| 426 | |
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| 427 | if ( isset($this->options['cryptType']) |
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| 428 | && $this->options['cryptType'] == 'none') { |
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| 429 | $cryptFunction = 'strval'; |
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| 430 | } elseif ( isset($this->options['cryptType']) |
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| 431 | && function_exists($this->options['cryptType'])) { |
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| 432 | $cryptFunction = $this->options['cryptType']; |
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| 433 | } else { |
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| 434 | $cryptFunction = 'md5'; |
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| 435 | } |
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| 436 | |
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| 437 | $password = $cryptFunction($password); |
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| 438 | |
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| 439 | $additional_key = ''; |
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| 440 | $additional_value = ''; |
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| 441 | |
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| 442 | if (is_array($additional)) { |
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| 443 | foreach ($additional as $key => $value) { |
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| 444 | if ($this->options['auto_quote']) { |
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| 445 | $additional_key .= ', ' . $this->db->quoteIdentifier($key); |
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| 446 | } else { |
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| 447 | $additional_key .= ', ' . $key; |
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| 448 | } |
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| 449 | $additional_value .= ", " . $this->db->quoteSmart($value); |
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| 450 | } |
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| 451 | } |
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| 452 | |
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| 453 | $query = sprintf("INSERT INTO %s (%s, %s%s) VALUES (%s, %s%s)", |
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| 454 | $this->options['final_table'], |
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| 455 | $this->options['final_usernamecol'], |
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| 456 | $this->options['final_passwordcol'], |
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| 457 | $additional_key, |
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| 458 | $this->db->quoteSmart($username), |
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| 459 | $this->db->quoteSmart($password), |
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| 460 | $additional_value |
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| 461 | ); |
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| 462 | |
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| 463 | $res = $this->query($query); |
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| 464 | |
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| 465 | if (DB::isError($res)) { |
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| 466 | return PEAR::raiseError($res->getMessage(), $res->getCode()); |
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| 467 | } else { |
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| 468 | return true; |
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| 469 | } |
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| 470 | } |
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| 471 | |
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| 472 | // }}} |
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| 473 | // {{{ removeUser() |
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| 474 | |
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| 475 | /** |
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| 476 | * Remove user from the storage container |
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| 477 | * |
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| 478 | * @access public |
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| 479 | * @param string Username |
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| 480 | * |
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| 481 | * @return mixed True on success, otherwise error object |
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| 482 | */ |
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| 483 | function removeUser($username) |
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| 484 | { |
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| 485 | $err = $this->_prepare(); |
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| 486 | if ($err !== true) { |
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| 487 | return PEAR::raiseError($err->getMessage(), $err->getCode()); |
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| 488 | } |
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| 489 | |
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| 490 | $query = sprintf("DELETE FROM %s WHERE %s = %s", |
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| 491 | $this->options['final_table'], |
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| 492 | $this->options['final_usernamecol'], |
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| 493 | $this->db->quoteSmart($username) |
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| 494 | ); |
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| 495 | |
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| 496 | $res = $this->query($query); |
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| 497 | |
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| 498 | if (DB::isError($res)) { |
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| 499 | return PEAR::raiseError($res->getMessage(), $res->getCode()); |
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| 500 | } else { |
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| 501 | return true; |
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| 502 | } |
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| 503 | } |
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| 504 | |
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| 505 | // }}} |
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| 506 | // {{{ changePassword() |
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| 507 | |
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| 508 | /** |
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| 509 | * Change password for user in the storage container |
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| 510 | * |
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| 511 | * @param string Username |
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| 512 | * @param string The new password (plain text) |
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| 513 | */ |
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| 514 | function changePassword($username, $password) |
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| 515 | { |
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| 516 | $err = $this->_prepare(); |
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| 517 | if ($err !== true) { |
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| 518 | return PEAR::raiseError($err->getMessage(), $err->getCode()); |
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| 519 | } |
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| 520 | |
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| 521 | if ( isset($this->options['cryptType']) |
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| 522 | && $this->options['cryptType'] == 'none') { |
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| 523 | $cryptFunction = 'strval'; |
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| 524 | } elseif ( isset($this->options['cryptType']) |
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| 525 | && function_exists($this->options['cryptType'])) { |
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| 526 | $cryptFunction = $this->options['cryptType']; |
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| 527 | } else { |
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| 528 | $cryptFunction = 'md5'; |
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| 529 | } |
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| 530 | |
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| 531 | $password = $cryptFunction($password); |
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| 532 | |
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| 533 | $query = sprintf("UPDATE %s SET %s = %s WHERE %s = %s", |
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| 534 | $this->options['final_table'], |
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| 535 | $this->options['final_passwordcol'], |
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| 536 | $this->db->quoteSmart($password), |
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| 537 | $this->options['final_usernamecol'], |
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| 538 | $this->db->quoteSmart($username) |
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| 539 | ); |
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| 540 | |
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| 541 | $res = $this->query($query); |
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| 542 | |
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| 543 | if (DB::isError($res)) { |
|---|
| 544 | return PEAR::raiseError($res->getMessage(), $res->getCode()); |
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| 545 | } else { |
|---|
| 546 | return true; |
|---|
| 547 | } |
|---|
| 548 | } |
|---|
| 549 | |
|---|
| 550 | // }}} |
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| 551 | // {{{ supportsChallengeResponse() |
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| 552 | |
|---|
| 553 | /** |
|---|
| 554 | * Determine if this container supports |
|---|
| 555 | * password authentication with challenge response |
|---|
| 556 | * |
|---|
| 557 | * @return bool |
|---|
| 558 | * @access public |
|---|
| 559 | */ |
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| 560 | function supportsChallengeResponse() |
|---|
| 561 | { |
|---|
| 562 | return in_array($this->options['cryptType'], array('md5', 'none', '')); |
|---|
| 563 | } |
|---|
| 564 | |
|---|
| 565 | // }}} |
|---|
| 566 | // {{{ getCryptType() |
|---|
| 567 | |
|---|
| 568 | /** |
|---|
| 569 | * Returns the selected crypt type for this container |
|---|
| 570 | */ |
|---|
| 571 | function getCryptType() |
|---|
| 572 | { |
|---|
| 573 | return($this->options['cryptType']); |
|---|
| 574 | } |
|---|
| 575 | |
|---|
| 576 | // }}} |
|---|
| 577 | |
|---|
| 578 | } |
|---|
| 579 | ?> |
|---|