1 | <?php |
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2 | // |
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3 | // +----------------------------------------------------------------------+ |
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4 | // | PHP Version 4 | |
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5 | // +----------------------------------------------------------------------+ |
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6 | // | | |
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7 | // +----------------------------------------------------------------------+ |
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8 | // | This source file is subject to version 2.02 of the PHP license, | |
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9 | // | that is bundled with this package in the file LICENSE, and is | |
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10 | // | available at through the world-wide-web at | |
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11 | // | http://www.php.net/license/2_02.txt. | |
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12 | // | If you did not receive a copy of the PHP license and are unable to | |
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13 | // | obtain it through the world-wide-web, please send a note to | |
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14 | // | license@php.net so we can mail you a copy immediately. | |
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15 | // +----------------------------------------------------------------------+ |
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16 | // | Authors: Martin Jansen <mj@php.net> |
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17 | // | Richard Tango-Lowy <richtl@arscognita.com> | |
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18 | // +----------------------------------------------------------------------+ |
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19 | // |
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20 | // |
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21 | |
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22 | require_once 'Auth/Container.php'; |
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23 | require_once 'adodb.inc.php'; |
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24 | require_once 'adodb-pear.inc.php'; |
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25 | require_once 'adodb-errorpear.inc.php'; |
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26 | |
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27 | /** |
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28 | * Storage driver for fetching login data from a database using ADOdb-PHP. |
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29 | * |
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30 | * This storage driver can use all databases which are supported |
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31 | * by the ADBdb DB abstraction layer to fetch login data. |
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32 | * See http://php.weblogs.com/adodb for information on ADOdb. |
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33 | * NOTE: The ADOdb directory MUST be in your PHP include_path! |
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34 | * |
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35 | * @author Richard Tango-Lowy <richtl@arscognita.com> |
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36 | * @package Auth |
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37 | */ |
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38 | class Auth_Container_ADOdb extends Auth_Container |
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39 | { |
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40 | |
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41 | /** |
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42 | * Additional options for the storage container |
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43 | * @var array |
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44 | */ |
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45 | var $options = array(); |
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46 | |
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47 | /** |
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48 | * DB object |
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49 | * @var object |
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50 | */ |
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51 | var $db = null; |
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52 | var $dsn = ''; |
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53 | |
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54 | /** |
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55 | * User that is currently selected from the DB. |
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56 | * @var string |
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57 | */ |
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58 | var $activeUser = ''; |
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59 | |
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60 | // {{{ Constructor |
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61 | |
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62 | /** |
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63 | * Constructor of the container class |
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64 | * |
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65 | * Initate connection to the database via PEAR::ADOdb |
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66 | * |
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67 | * @param string Connection data or DB object |
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68 | * @return object Returns an error object if something went wrong |
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69 | */ |
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70 | function Auth_Container_ADOdb($dsn) |
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71 | { |
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72 | $this->_setDefaults(); |
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73 | |
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74 | if (is_array($dsn)) { |
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75 | $this->_parseOptions($dsn); |
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76 | |
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77 | if (empty($this->options['dsn'])) { |
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78 | PEAR::raiseError('No connection parameters specified!'); |
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79 | } |
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80 | } else { |
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81 | // Extract db_type from dsn string. |
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82 | $this->options['dsn'] = $dsn; |
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83 | $this->_parseDsn( $dsn ); |
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84 | } |
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85 | } |
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86 | |
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87 | // }}} |
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88 | // {{{ _connect() |
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89 | |
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90 | /** |
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91 | * Connect to database by using the given DSN string |
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92 | * |
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93 | * @access private |
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94 | * @param string DSN string |
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95 | * @return mixed Object on error, otherwise bool |
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96 | */ |
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97 | function _connect($dsn) |
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98 | { |
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99 | if (is_string($dsn) || is_array($dsn)) { |
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100 | if(!$this->db) { |
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101 | $this->db = &ADONewConnection($this->options['db_type']); |
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102 | |
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103 | if( $err = ADODB_Pear_error() ) { |
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104 | return PEAR::raiseError($err); |
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105 | } |
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106 | } |
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107 | |
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108 | $dbconnected = $this->db->Connect( |
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109 | $this->options['db_host'], |
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110 | $this->options['db_user'], |
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111 | $this->options['db_pass'], |
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112 | $this->options['db_name'] ); |
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113 | if( !$dbconnected ) { |
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114 | PEAR::raiseError('Unable to connect to database' ); |
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115 | } |
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116 | |
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117 | } else { |
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118 | return PEAR::raiseError('The given dsn was not valid in file ' . __FILE__ . ' at line ' . __LINE__, |
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119 | 41, |
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120 | PEAR_ERROR_RETURN, |
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121 | null, |
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122 | null |
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123 | ); |
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124 | } |
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125 | |
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126 | if(!$this->db) { |
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127 | return PEAR::raiseError(ADODB_Pear_error()); |
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128 | } else { |
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129 | return true; |
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130 | } |
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131 | } |
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132 | |
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133 | // }}} |
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134 | // {{{ _prepare() |
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135 | |
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136 | /** |
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137 | * Prepare database connection |
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138 | * |
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139 | * This function checks if we have already opened a connection to |
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140 | * the database. If that's not the case, a new connection is opened. |
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141 | * |
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142 | * @access private |
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143 | * @return mixed True or a DB error object. |
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144 | */ |
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145 | function _prepare() |
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146 | { |
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147 | if(!$this->db) { |
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148 | $res = $this->_connect($this->options['dsn']); |
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149 | } |
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150 | return true; |
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151 | } |
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152 | |
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153 | // }}} |
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154 | // {{{ query() |
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155 | |
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156 | /** |
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157 | * Prepare query to the database |
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158 | * |
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159 | * This function checks if we have already opened a connection to |
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160 | * the database. If that's not the case, a new connection is opened. |
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161 | * After that the query is passed to the database. |
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162 | * |
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163 | * @access public |
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164 | * @param string Query string |
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165 | * @return mixed a DB_result object or DB_OK on success, a DB |
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166 | * or PEAR error on failure |
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167 | */ |
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168 | function query($query) |
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169 | { |
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170 | $err = $this->_prepare(); |
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171 | if ($err !== true) { |
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172 | return $err; |
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173 | } |
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174 | return $this->db->query($query); |
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175 | } |
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176 | |
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177 | // }}} |
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178 | // {{{ _setDefaults() |
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179 | |
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180 | /** |
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181 | * Set some default options |
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182 | * |
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183 | * @access private |
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184 | * @return void |
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185 | */ |
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186 | function _setDefaults() |
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187 | { |
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188 | $this->options['db_type'] = 'mysql'; |
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189 | $this->options['table'] = 'auth'; |
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190 | $this->options['usernamecol'] = 'username'; |
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191 | $this->options['passwordcol'] = 'password'; |
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192 | $this->options['dsn'] = ''; |
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193 | $this->options['db_fields'] = ''; |
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194 | $this->options['cryptType'] = 'md5'; |
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195 | } |
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196 | |
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197 | // }}} |
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198 | // {{{ _parseOptions() |
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199 | |
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200 | /** |
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201 | * Parse options passed to the container class |
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202 | * |
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203 | * @access private |
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204 | * @param array |
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205 | */ |
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206 | function _parseOptions($array) |
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207 | { |
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208 | foreach ($array as $key => $value) { |
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209 | if (isset($this->options[$key])) { |
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210 | $this->options[$key] = $value; |
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211 | } |
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212 | } |
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213 | |
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214 | /* Include additional fields if they exist */ |
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215 | if(!empty($this->options['db_fields'])){ |
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216 | if(is_array($this->options['db_fields'])){ |
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217 | $this->options['db_fields'] = join($this->options['db_fields'], ', '); |
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218 | } |
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219 | $this->options['db_fields'] = ', '.$this->options['db_fields']; |
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220 | } |
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221 | } |
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222 | |
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223 | // }}} |
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224 | // {{{ fetchData() |
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225 | |
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226 | /** |
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227 | * Get user information from database |
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228 | * |
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229 | * This function uses the given username to fetch |
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230 | * the corresponding login data from the database |
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231 | * table. If an account that matches the passed username |
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232 | * and password is found, the function returns true. |
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233 | * Otherwise it returns false. |
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234 | * |
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235 | * @param string Username |
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236 | * @param string Password |
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237 | * @return mixed Error object or boolean |
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238 | */ |
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239 | function fetchData($username, $password) |
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240 | { |
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241 | // Prepare for a database query |
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242 | $err = $this->_prepare(); |
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243 | if ($err !== true) { |
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244 | return PEAR::raiseError($err->getMessage(), $err->getCode()); |
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245 | } |
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246 | |
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247 | // Find if db_fields contains a *, i so assume all col are selected |
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248 | if(strstr($this->options['db_fields'], '*')){ |
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249 | $sql_from = "*"; |
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250 | } |
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251 | else{ |
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252 | $sql_from = $this->options['usernamecol'] . ", ".$this->options['passwordcol'].$this->options['db_fields']; |
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253 | } |
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254 | |
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255 | $query = "SELECT ".$sql_from. |
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256 | " FROM ".$this->options['table']. |
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257 | " WHERE ".$this->options['usernamecol']." = " . $this->db->Quote($username); |
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258 | |
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259 | $ADODB_FETCH_MODE = ADODB_FETCH_ASSOC; |
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260 | $rset = $this->db->Execute( $query ); |
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261 | $res = $rset->fetchRow(); |
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262 | |
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263 | if (DB::isError($res)) { |
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264 | return PEAR::raiseError($res->getMessage(), $res->getCode()); |
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265 | } |
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266 | if (!is_array($res)) { |
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267 | $this->activeUser = ''; |
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268 | return false; |
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269 | } |
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270 | if ($this->verifyPassword(trim($password, "\r\n"), |
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271 | trim($res[$this->options['passwordcol']], "\r\n"), |
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272 | $this->options['cryptType'])) { |
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273 | // Store additional field values in the session |
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274 | foreach ($res as $key => $value) { |
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275 | if ($key == $this->options['passwordcol'] || |
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276 | $key == $this->options['usernamecol']) { |
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277 | continue; |
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278 | } |
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279 | // Use reference to the auth object if exists |
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280 | // This is because the auth session variable can change so a static call to setAuthData does not make sence |
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281 | if(is_object($this->_auth_obj)){ |
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282 | $this->_auth_obj->setAuthData($key, $value); |
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283 | } else { |
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284 | Auth::setAuthData($key, $value); |
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285 | } |
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286 | } |
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287 | |
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288 | return true; |
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289 | } |
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290 | |
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291 | $this->activeUser = $res[$this->options['usernamecol']]; |
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292 | return false; |
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293 | } |
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294 | |
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295 | // }}} |
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296 | // {{{ listUsers() |
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297 | |
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298 | function listUsers() |
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299 | { |
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300 | $err = $this->_prepare(); |
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301 | if ($err !== true) { |
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302 | return PEAR::raiseError($err->getMessage(), $err->getCode()); |
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303 | } |
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304 | |
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305 | $retVal = array(); |
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306 | |
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307 | // Find if db_fileds contains a *, i so assume all col are selected |
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308 | if(strstr($this->options['db_fields'], '*')){ |
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309 | $sql_from = "*"; |
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310 | } |
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311 | else{ |
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312 | $sql_from = $this->options['usernamecol'] . ", ".$this->options['passwordcol'].$this->options['db_fields']; |
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313 | } |
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314 | |
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315 | $query = sprintf("SELECT %s FROM %s", |
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316 | $sql_from, |
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317 | $this->options['table'] |
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318 | ); |
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319 | $res = $this->db->getAll($query, null, DB_FETCHMODE_ASSOC); |
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320 | |
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321 | if (DB::isError($res)) { |
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322 | return PEAR::raiseError($res->getMessage(), $res->getCode()); |
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323 | } else { |
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324 | foreach ($res as $user) { |
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325 | $user['username'] = $user[$this->options['usernamecol']]; |
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326 | $retVal[] = $user; |
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327 | } |
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328 | } |
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329 | return $retVal; |
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330 | } |
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331 | |
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332 | // }}} |
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333 | // {{{ addUser() |
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334 | |
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335 | /** |
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336 | * Add user to the storage container |
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337 | * |
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338 | * @access public |
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339 | * @param string Username |
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340 | * @param string Password |
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341 | * @param mixed Additional information that are stored in the DB |
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342 | * |
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343 | * @return mixed True on success, otherwise error object |
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344 | */ |
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345 | function addUser($username, $password, $additional = "") |
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346 | { |
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347 | if (function_exists($this->options['cryptType'])) { |
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348 | $cryptFunction = $this->options['cryptType']; |
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349 | } else { |
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350 | $cryptFunction = 'md5'; |
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351 | } |
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352 | |
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353 | $additional_key = ''; |
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354 | $additional_value = ''; |
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355 | |
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356 | if (is_array($additional)) { |
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357 | foreach ($additional as $key => $value) { |
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358 | $additional_key .= ', ' . $key; |
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359 | $additional_value .= ", '" . $value . "'"; |
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360 | } |
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361 | } |
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362 | |
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363 | $query = sprintf("INSERT INTO %s (%s, %s%s) VALUES ('%s', '%s'%s)", |
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364 | $this->options['table'], |
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365 | $this->options['usernamecol'], |
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366 | $this->options['passwordcol'], |
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367 | $additional_key, |
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368 | $username, |
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369 | $cryptFunction($password), |
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370 | $additional_value |
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371 | ); |
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372 | |
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373 | $res = $this->query($query); |
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374 | |
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375 | if (DB::isError($res)) { |
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376 | return PEAR::raiseError($res->getMessage(), $res->getCode()); |
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377 | } else { |
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378 | return true; |
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379 | } |
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380 | } |
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381 | |
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382 | // }}} |
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383 | // {{{ removeUser() |
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384 | |
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385 | /** |
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386 | * Remove user from the storage container |
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387 | * |
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388 | * @access public |
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389 | * @param string Username |
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390 | * |
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391 | * @return mixed True on success, otherwise error object |
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392 | */ |
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393 | function removeUser($username) |
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394 | { |
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395 | $query = sprintf("DELETE FROM %s WHERE %s = '%s'", |
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396 | $this->options['table'], |
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397 | $this->options['usernamecol'], |
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398 | $username |
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399 | ); |
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400 | |
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401 | $res = $this->query($query); |
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402 | |
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403 | if (DB::isError($res)) { |
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404 | return PEAR::raiseError($res->getMessage(), $res->getCode()); |
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405 | } else { |
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406 | return true; |
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407 | } |
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408 | } |
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409 | |
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410 | // }}} |
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411 | |
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412 | function _parseDsn( $dsn ) |
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413 | { |
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414 | if( is_string( $dsn )) { |
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415 | preg_match( '/^(\w*):\/\/(\w*)(:(\w*))?@(\w*)\/(\w*)$/', $dsn, $match ); |
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416 | |
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417 | $this->options['db_type'] = $match[1]; |
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418 | $this->options['db_user'] = $match[2]; |
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419 | $this->options['db_pass'] = $match[3]; |
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420 | $this->options['db_host'] = $match[5]; |
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421 | $this->options['db_name'] = $match[6]; |
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422 | } |
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423 | } |
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424 | } |
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425 | |
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426 | function showDbg( $string ) { |
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427 | print "<P>$string</P>"; |
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428 | } |
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429 | function dump( $var, $str, $vardump = false ) { |
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430 | print "<H4>$str</H4><pre>"; |
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431 | ( !$vardump ) ? ( print_r( $var )) : ( var_dump( $var )); |
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432 | print "</pre>"; |
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433 | } |
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434 | ?> |
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