1 | <?php |
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2 | |
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3 | |
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4 | /* |
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5 | V4.01 23 Oct 2003 (c) 2000-2004 John Lim (jlim@natsoft.com.my). All rights reserved. |
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6 | Contributed by Ross Smith (adodb@netebb.com). |
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7 | Released under both BSD license and Lesser GPL library license. |
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8 | Whenever there is any discrepancy between the two licenses, |
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9 | the BSD license will take precedence. |
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10 | Set tabs to 4 for best viewing. |
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11 | */ |
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12 | |
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13 | /* |
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14 | You may want to rename the 'data' field to 'session_data' as |
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15 | 'data' appears to be a reserved word for one or more of the following: |
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16 | ANSI SQL |
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17 | IBM DB2 |
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18 | MS SQL Server |
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19 | Postgres |
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20 | SAP |
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21 | |
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22 | If you do, then execute: |
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23 | |
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24 | ADODB_Session::dataFieldName('session_data'); |
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25 | |
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26 | */ |
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27 | |
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28 | if (!defined('_ADODB_LAYER')) { |
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29 | require_once realpath(dirname(__FILE__) . '/../adodb.inc.php'); |
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30 | } |
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31 | |
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32 | if (defined('ADODB_SESSION')) return 1; |
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33 | |
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34 | define('ADODB_SESSION', dirname(__FILE__)); |
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35 | |
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36 | /*! |
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37 | \static |
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38 | */ |
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39 | class ADODB_Session { |
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40 | ///////////////////// |
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41 | // getter/setter methods |
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42 | ///////////////////// |
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43 | |
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44 | /*! |
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45 | */ |
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46 | function driver($driver = null) { |
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47 | static $_driver = 'mysql'; |
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48 | static $set = false; |
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49 | |
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50 | if (!is_null($driver)) { |
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51 | $_driver = trim($driver); |
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52 | $set = true; |
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53 | } elseif (!$set) { |
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54 | // backwards compatibility |
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55 | if (isset($GLOBALS['ADODB_SESSION_DRIVER'])) { |
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56 | return $GLOBALS['ADODB_SESSION_DRIVER']; |
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57 | } |
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58 | } |
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59 | |
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60 | return $_driver; |
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61 | } |
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62 | |
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63 | /*! |
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64 | */ |
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65 | function host($host = null) { |
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66 | static $_host = 'localhost'; |
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67 | static $set = false; |
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68 | |
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69 | if (!is_null($host)) { |
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70 | $_host = trim($host); |
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71 | $set = true; |
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72 | } elseif (!$set) { |
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73 | // backwards compatibility |
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74 | if (isset($GLOBALS['ADODB_SESSION_CONNECT'])) { |
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75 | return $GLOBALS['ADODB_SESSION_CONNECT']; |
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76 | } |
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77 | } |
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78 | |
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79 | return $_host; |
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80 | } |
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81 | |
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82 | /*! |
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83 | */ |
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84 | function user($user = null) { |
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85 | static $_user = 'root'; |
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86 | static $set = false; |
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87 | |
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88 | if (!is_null($user)) { |
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89 | $_user = trim($user); |
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90 | $set = true; |
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91 | } elseif (!$set) { |
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92 | // backwards compatibility |
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93 | if (isset($GLOBALS['ADODB_SESSION_USER'])) { |
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94 | return $GLOBALS['ADODB_SESSION_USER']; |
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95 | } |
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96 | } |
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97 | |
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98 | return $_user; |
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99 | } |
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100 | |
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101 | /*! |
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102 | */ |
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103 | function password($password = null) { |
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104 | static $_password = ''; |
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105 | static $set = false; |
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106 | |
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107 | if (!is_null($password)) { |
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108 | $_password = $password; |
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109 | $set = true; |
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110 | } elseif (!$set) { |
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111 | // backwards compatibility |
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112 | if (isset($GLOBALS['ADODB_SESSION_PWD'])) { |
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113 | return $GLOBALS['ADODB_SESSION_PWD']; |
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114 | } |
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115 | } |
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116 | |
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117 | return $_password; |
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118 | } |
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119 | |
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120 | /*! |
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121 | */ |
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122 | function database($database = null) { |
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123 | static $_database = 'xphplens_2'; |
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124 | static $set = false; |
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125 | |
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126 | if (!is_null($database)) { |
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127 | $_database = trim($database); |
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128 | $set = true; |
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129 | } elseif (!$set) { |
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130 | // backwards compatibility |
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131 | if (isset($GLOBALS['ADODB_SESSION_DB'])) { |
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132 | return $GLOBALS['ADODB_SESSION_DB']; |
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133 | } |
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134 | } |
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135 | |
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136 | return $_database; |
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137 | } |
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138 | |
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139 | /*! |
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140 | */ |
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141 | function persist($persist = null) { |
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142 | static $_persist = true; |
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143 | |
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144 | if (!is_null($persist)) { |
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145 | $_persist = trim($persist); |
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146 | } |
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147 | |
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148 | return $_persist; |
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149 | } |
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150 | |
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151 | /*! |
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152 | */ |
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153 | function lifetime($lifetime = null) { |
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154 | static $_lifetime; |
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155 | static $set = false; |
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156 | |
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157 | if (!is_null($lifetime)) { |
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158 | $_lifetime = (int) $lifetime; |
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159 | $set = true; |
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160 | } elseif (!$set) { |
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161 | // backwards compatibility |
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162 | if (isset($GLOBALS['ADODB_SESS_LIFE'])) { |
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163 | return $GLOBALS['ADODB_SESS_LIFE']; |
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164 | } |
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165 | } |
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166 | if (!$_lifetime) { |
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167 | $_lifetime = ini_get('session.gc_maxlifetime'); |
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168 | if ($_lifetime <= 1) { |
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169 | // bug in PHP 4.0.3 pl 1 -- how about other versions? |
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170 | //print "<h3>Session Error: PHP.INI setting <i>session.gc_maxlifetime</i>not set: $lifetime</h3>"; |
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171 | $_lifetime = 1440; |
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172 | } |
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173 | } |
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174 | |
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175 | return $_lifetime; |
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176 | } |
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177 | |
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178 | /*! |
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179 | */ |
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180 | function debug($debug = null) { |
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181 | static $_debug = false; |
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182 | static $set = false; |
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183 | |
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184 | if (!is_null($debug)) { |
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185 | $_debug = (bool) $debug; |
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186 | |
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187 | $conn = ADODB_Session::_conn(); |
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188 | if ($conn) { |
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189 | $conn->debug = $_debug; |
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190 | } |
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191 | $set = true; |
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192 | } elseif (!$set) { |
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193 | // backwards compatibility |
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194 | if (isset($GLOBALS['ADODB_SESS_DEBUG'])) { |
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195 | return $GLOBALS['ADODB_SESS_DEBUG']; |
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196 | } |
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197 | } |
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198 | |
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199 | return $_debug; |
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200 | } |
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201 | |
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202 | /*! |
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203 | */ |
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204 | function expireNotify($expire_notify = null) { |
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205 | static $_expire_notify; |
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206 | static $set = false; |
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207 | |
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208 | if (!is_null($expire_notify)) { |
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209 | $_expire_notify = $expire_notify; |
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210 | $set = true; |
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211 | } elseif (!$set) { |
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212 | // backwards compatibility |
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213 | if (isset($GLOBALS['ADODB_SESSION_EXPIRE_NOTIFY'])) { |
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214 | return $GLOBALS['ADODB_SESSION_EXPIRE_NOTIFY']; |
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215 | } |
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216 | } |
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217 | |
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218 | return $_expire_notify; |
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219 | } |
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220 | |
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221 | /*! |
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222 | */ |
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223 | function table($table = null) { |
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224 | static $_table = 'sessions'; |
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225 | static $set = false; |
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226 | |
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227 | if (!is_null($table)) { |
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228 | $_table = trim($table); |
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229 | $set = true; |
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230 | } elseif (!$set) { |
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231 | // backwards compatibility |
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232 | if (isset($GLOBALS['ADODB_SESSION_TBL'])) { |
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233 | return $GLOBALS['ADODB_SESSION_TBL']; |
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234 | } |
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235 | } |
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236 | |
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237 | return $_table; |
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238 | } |
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239 | |
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240 | /*! |
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241 | */ |
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242 | function optimize($optimize = null) { |
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243 | static $_optimize = false; |
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244 | static $set = false; |
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245 | |
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246 | if (!is_null($optimize)) { |
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247 | $_optimize = (bool) $optimize; |
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248 | $set = true; |
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249 | } elseif (!$set) { |
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250 | // backwards compatibility |
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251 | if (defined('ADODB_SESSION_OPTIMIZE')) { |
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252 | return true; |
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253 | } |
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254 | } |
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255 | |
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256 | return $_optimize; |
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257 | } |
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258 | |
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259 | /*! |
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260 | */ |
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261 | function syncSeconds($sync_seconds = null) { |
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262 | static $_sync_seconds = 60; |
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263 | static $set = false; |
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264 | |
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265 | if (!is_null($sync_seconds)) { |
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266 | $_sync_seconds = (int) $sync_seconds; |
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267 | $set = true; |
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268 | } elseif (!$set) { |
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269 | // backwards compatibility |
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270 | if (defined('ADODB_SESSION_SYNCH_SECS')) { |
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271 | return ADODB_SESSION_SYNCH_SECS; |
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272 | } |
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273 | } |
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274 | |
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275 | return $_sync_seconds; |
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276 | } |
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277 | |
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278 | /*! |
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279 | */ |
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280 | function clob($clob = null) { |
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281 | static $_clob = false; |
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282 | static $set = false; |
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283 | |
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284 | if (!is_null($clob)) { |
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285 | $_clob = strtolower(trim($clob)); |
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286 | $set = true; |
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287 | } elseif (!$set) { |
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288 | // backwards compatibility |
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289 | if (isset($GLOBALS['ADODB_SESSION_USE_LOBS'])) { |
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290 | return $GLOBALS['ADODB_SESSION_USE_LOBS']; |
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291 | } |
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292 | } |
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293 | |
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294 | return $_clob; |
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295 | } |
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296 | |
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297 | /*! |
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298 | */ |
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299 | function dataFieldName($data_field_name = null) { |
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300 | static $_data_field_name = 'data'; |
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301 | |
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302 | if (!is_null($data_field_name)) { |
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303 | $_data_field_name = trim($data_field_name); |
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304 | } |
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305 | |
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306 | return $_data_field_name; |
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307 | } |
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308 | |
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309 | /*! |
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310 | */ |
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311 | function filter($filter = null) { |
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312 | static $_filter = array(); |
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313 | |
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314 | if (!is_null($filter)) { |
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315 | if (!is_array($filter)) { |
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316 | $filter = array($filter); |
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317 | } |
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318 | $_filter = $filter; |
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319 | } |
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320 | |
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321 | return $_filter; |
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322 | } |
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323 | |
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324 | /*! |
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325 | */ |
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326 | function encryptionKey($encryption_key = null) { |
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327 | static $_encryption_key = 'CRYPTED ADODB SESSIONS ROCK!'; |
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328 | |
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329 | if (!is_null($encryption_key)) { |
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330 | $_encryption_key = $encryption_key; |
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331 | } |
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332 | |
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333 | return $_encryption_key; |
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334 | } |
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335 | |
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336 | ///////////////////// |
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337 | // private methods |
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338 | ///////////////////// |
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339 | |
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340 | /*! |
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341 | */ |
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342 | function &_conn($conn=null) { |
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343 | return $GLOBALS['ADODB_SESS_CONN']; |
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344 | } |
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345 | |
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346 | /*! |
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347 | */ |
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348 | function _crc($crc = null) { |
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349 | static $_crc = false; |
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350 | |
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351 | if (!is_null($crc)) { |
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352 | $_crc = $crc; |
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353 | } |
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354 | |
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355 | return $_crc; |
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356 | } |
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357 | |
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358 | /*! |
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359 | */ |
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360 | function _init() { |
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361 | session_module_name('user'); |
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362 | session_set_save_handler( |
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363 | array('ADODB_Session', 'open'), |
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364 | array('ADODB_Session', 'close'), |
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365 | array('ADODB_Session', 'read'), |
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366 | array('ADODB_Session', 'write'), |
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367 | array('ADODB_Session', 'destroy'), |
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368 | array('ADODB_Session', 'gc') |
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369 | ); |
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370 | } |
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371 | |
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372 | |
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373 | /*! |
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374 | */ |
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375 | function _sessionKey() { |
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376 | // use this function to create the encryption key for crypted sessions |
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377 | // crypt the used key, ADODB_Session::encryptionKey() as key and session_id() as salt |
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378 | return crypt(ADODB_Session::encryptionKey(), session_id()); |
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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 | function _dumprs($rs) { |
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384 | $conn =& ADODB_Session::_conn(); |
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385 | $debug = ADODB_Session::debug(); |
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386 | |
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387 | if (!$conn) { |
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388 | return; |
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389 | } |
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390 | |
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391 | if (!$debug) { |
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392 | return; |
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393 | } |
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394 | |
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395 | if (!$rs) { |
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396 | echo "<br />\$rs is null or false<br />\n"; |
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397 | return; |
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398 | } |
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399 | |
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400 | //echo "<br />\nAffected_Rows=",$conn->Affected_Rows(),"<br />\n"; |
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401 | |
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402 | if (!is_object($rs)) { |
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403 | return; |
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404 | } |
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405 | |
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406 | require_once ADODB_SESSION.'/../tohtml.inc.php'; |
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407 | rs2html($rs); |
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408 | } |
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409 | |
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410 | ///////////////////// |
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411 | // public methods |
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412 | ///////////////////// |
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413 | |
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414 | /*! |
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415 | Create the connection to the database. |
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416 | |
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417 | If $conn already exists, reuse that connection |
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418 | */ |
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419 | function open($save_path, $session_name, $persist = null) { |
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420 | $conn =& ADODB_Session::_conn(); |
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421 | |
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422 | if ($conn) { |
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423 | return true; |
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424 | } |
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425 | |
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426 | $database = ADODB_Session::database(); |
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427 | $debug = ADODB_Session::debug(); |
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428 | $driver = ADODB_Session::driver(); |
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429 | $host = ADODB_Session::host(); |
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430 | $password = ADODB_Session::password(); |
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431 | $user = ADODB_Session::user(); |
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432 | |
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433 | if (!is_null($persist)) { |
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434 | $persist = (bool) $persist; |
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435 | ADODB_Session::persist($persist); |
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436 | } else { |
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437 | $persist = ADODB_Session::persist(); |
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438 | } |
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439 | |
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440 | # these can all be defaulted to in php.ini |
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441 | # assert('$database'); |
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442 | # assert('$driver'); |
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443 | # assert('$host'); |
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444 | |
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445 | // cannot use =& below - do not know why... |
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446 | $conn = ADONewConnection($driver); |
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447 | |
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448 | if ($debug) { |
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449 | $conn->debug = true; |
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450 | // ADOConnection::outp( " driver=$driver user=$user pwd=$password db=$database "); |
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451 | } |
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452 | |
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453 | if ($persist) { |
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454 | $ok = $conn->PConnect($host, $user, $password, $database); |
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455 | } else { |
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456 | $ok = $conn->Connect($host, $user, $password, $database); |
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457 | } |
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458 | |
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459 | if ($ok) $GLOBALS['ADODB_SESS_CONN'] =& $conn; |
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460 | else |
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461 | ADOConnection::outp('<p>Session: connection failed</p>', false); |
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462 | |
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463 | |
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464 | return $ok; |
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465 | } |
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466 | |
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467 | /*! |
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468 | Close the connection |
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469 | */ |
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470 | function close() { |
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471 | $conn =& ADODB_Session::_conn(); |
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472 | |
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473 | if ($conn) { |
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474 | $conn->Close(); |
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475 | } |
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476 | |
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477 | return true; |
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478 | } |
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479 | |
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480 | /* |
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481 | Slurp in the session variables and return the serialized string |
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482 | */ |
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483 | function read($key) { |
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484 | $conn =& ADODB_Session::_conn(); |
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485 | $data = ADODB_Session::dataFieldName(); |
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486 | $filter = ADODB_Session::filter(); |
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487 | $table = ADODB_Session::table(); |
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488 | |
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489 | if (!$conn) { |
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490 | return ''; |
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491 | } |
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492 | |
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493 | assert('$table'); |
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494 | |
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495 | $qkey = $conn->quote($key); |
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496 | $binary = $conn->dataProvider === 'mysql' ? '/*! BINARY */' : ''; |
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497 | |
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498 | $sql = "SELECT $data FROM $table WHERE $binary sesskey = $qkey AND expiry >= " . time(); |
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499 | $rs =& $conn->Execute($sql); |
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500 | //ADODB_Session::_dumprs($rs); |
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501 | if ($rs) { |
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502 | if ($rs->EOF) { |
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503 | $v = ''; |
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504 | } else { |
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505 | $v = reset($rs->fields); |
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506 | $filter = array_reverse($filter); |
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507 | foreach ($filter as $f) { |
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508 | if (is_object($f)) { |
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509 | $v = $f->read($v, ADODB_Session::_sessionKey()); |
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510 | } |
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511 | } |
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512 | $v = rawurldecode($v); |
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513 | } |
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514 | |
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515 | $rs->Close(); |
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516 | |
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517 | ADODB_Session::_crc(strlen($v) . crc32($v)); |
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518 | return $v; |
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519 | } |
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520 | |
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521 | return ''; |
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522 | } |
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523 | |
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524 | /*! |
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525 | Write the serialized data to a database. |
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526 | |
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527 | If the data has not been modified since the last read(), we do not write. |
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528 | */ |
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529 | function write($key, $val) { |
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530 | $clob = ADODB_Session::clob(); |
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531 | $conn =& ADODB_Session::_conn(); |
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532 | $crc = ADODB_Session::_crc(); |
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533 | $data = ADODB_Session::dataFieldName(); |
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534 | $debug = ADODB_Session::debug(); |
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535 | $driver = ADODB_Session::driver(); |
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536 | $expire_notify = ADODB_Session::expireNotify(); |
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537 | $filter = ADODB_Session::filter(); |
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538 | $lifetime = ADODB_Session::lifetime(); |
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539 | $table = ADODB_Session::table(); |
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540 | |
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541 | if (!$conn) { |
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542 | return false; |
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543 | } |
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544 | |
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545 | assert('$table'); |
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546 | |
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547 | $expiry = time() + $lifetime; |
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548 | |
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549 | $qkey = $conn->quote($key); |
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550 | $binary = $conn->dataProvider === 'mysql' ? '/*! BINARY */' : ''; |
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551 | |
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552 | // crc32 optimization since adodb 2.1 |
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553 | // now we only update expiry date, thx to sebastian thom in adodb 2.32 |
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554 | if ($crc !== false && $crc == (strlen($val) . crc32($val))) { |
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555 | if ($debug) { |
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556 | echo '<p>Session: Only updating date - crc32 not changed</p>'; |
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557 | } |
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558 | $sql = "UPDATE $table SET expiry = $expiry WHERE $binary sesskey = $qkey AND expiry >= " . time(); |
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559 | $rs =& $conn->Execute($sql); |
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560 | ADODB_Session::_dumprs($rs); |
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561 | if ($rs) { |
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562 | $rs->Close(); |
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563 | } |
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564 | return true; |
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565 | } |
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566 | $val = rawurlencode($val); |
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567 | foreach ($filter as $f) { |
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568 | if (is_object($f)) { |
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569 | $val = $f->write($val, ADODB_Session::_sessionKey()); |
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570 | } |
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571 | } |
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572 | |
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573 | $arr = array('sesskey' => $key, 'expiry' => $expiry, $data => $val, 'expireref' => ''); |
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574 | if ($expire_notify) { |
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575 | $var = reset($expire_notify); |
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576 | global $$var; |
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577 | if (isset($$var)) { |
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578 | $arr['expireref'] = $$var; |
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579 | } |
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580 | } |
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581 | |
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582 | if (!$clob) { // no lobs, simply use replace() |
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583 | $arr[$data] = $conn->qstr($val); |
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584 | $rs = $conn->Replace($table, $arr, 'sesskey', $autoQuote = true); |
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585 | ADODB_Session::_dumprs($rs); |
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586 | } else { |
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587 | // what value shall we insert/update for lob row? |
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588 | switch ($driver) { |
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589 | // empty_clob or empty_lob for oracle dbs |
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590 | case 'oracle': |
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591 | case 'oci8': |
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592 | case 'oci8po': |
---|
593 | case 'oci805': |
---|
594 | $lob_value = sprintf('empty_%s()', strtolower($clob)); |
---|
595 | break; |
---|
596 | |
---|
597 | // null for all other |
---|
598 | default: |
---|
599 | $lob_value = 'null'; |
---|
600 | break; |
---|
601 | } |
---|
602 | |
---|
603 | // do we insert or update? => as for sesskey |
---|
604 | $rs =& $conn->Execute("SELECT COUNT(*) AS cnt FROM $table WHERE $binary sesskey = $qkey"); |
---|
605 | ADODB_Session::_dumprs($rs); |
---|
606 | if ($rs && reset($rs->fields) > 0) { |
---|
607 | $sql = "UPDATE $table SET expiry = $expiry, $data = $lob_value WHERE sesskey = $qkey"; |
---|
608 | } else { |
---|
609 | $sql = "INSERT INTO $table (expiry, $data, sesskey) VALUES ($expiry, $lob_value, $qkey)"; |
---|
610 | } |
---|
611 | if ($rs) { |
---|
612 | $rs->Close(); |
---|
613 | } |
---|
614 | |
---|
615 | $err = ''; |
---|
616 | $rs1 =& $conn->Execute($sql); |
---|
617 | ADODB_Session::_dumprs($rs1); |
---|
618 | if (!$rs1) { |
---|
619 | $err = $conn->ErrorMsg()."\n"; |
---|
620 | } |
---|
621 | $rs2 =& $conn->UpdateBlob($table, $data, $val, " sesskey=$qkey", strtoupper($clob)); |
---|
622 | ADODB_Session::_dumprs($rs2); |
---|
623 | if (!$rs2) { |
---|
624 | $err .= $conn->ErrorMsg()."\n"; |
---|
625 | } |
---|
626 | $rs = ($rs && $rs2) ? true : false; |
---|
627 | if ($rs1) { |
---|
628 | $rs1->Close(); |
---|
629 | } |
---|
630 | if (is_object($rs2)) { |
---|
631 | $rs2->Close(); |
---|
632 | } |
---|
633 | } |
---|
634 | |
---|
635 | if (!$rs) { |
---|
636 | ADOConnection::outp('<p>Session Replace: ' . $conn->ErrorMsg() . '</p>', false); |
---|
637 | return false; |
---|
638 | } else { |
---|
639 | // bug in access driver (could be odbc?) means that info is not committed |
---|
640 | // properly unless select statement executed in Win2000 |
---|
641 | if ($conn->databaseType == 'access') { |
---|
642 | $sql = "SELECT sesskey FROM $table WHERE $binary sesskey = $qkey"; |
---|
643 | $rs =& $conn->Execute($sql); |
---|
644 | ADODB_Session::_dumprs($rs); |
---|
645 | if ($rs) { |
---|
646 | $rs->Close(); |
---|
647 | } |
---|
648 | } |
---|
649 | } |
---|
650 | return $rs ? true : false; |
---|
651 | } |
---|
652 | |
---|
653 | /*! |
---|
654 | */ |
---|
655 | function destroy($key) { |
---|
656 | $conn =& ADODB_Session::_conn(); |
---|
657 | $table = ADODB_Session::table(); |
---|
658 | $expire_notify = ADODB_Session::expireNotify(); |
---|
659 | |
---|
660 | if (!$conn) { |
---|
661 | return false; |
---|
662 | } |
---|
663 | |
---|
664 | assert('$table'); |
---|
665 | |
---|
666 | $qkey = $conn->quote($key); |
---|
667 | $binary = $conn->dataProvider === 'mysql' ? '/*! BINARY */' : ''; |
---|
668 | |
---|
669 | if ($expire_notify) { |
---|
670 | reset($expire_notify); |
---|
671 | $fn = next($expire_notify); |
---|
672 | $savem = $conn->SetFetchMode(ADODB_FETCH_NUM); |
---|
673 | $sql = "SELECT expireref, sesskey FROM $table WHERE $binary sesskey = $qkey"; |
---|
674 | $rs =& $conn->Execute($sql); |
---|
675 | ADODB_Session::_dumprs($rs); |
---|
676 | $conn->SetFetchMode($savem); |
---|
677 | if (!$rs) { |
---|
678 | return false; |
---|
679 | } |
---|
680 | if (!$rs->EOF) { |
---|
681 | $ref = $rs->fields[0]; |
---|
682 | $key = $rs->fields[1]; |
---|
683 | //assert('$ref'); |
---|
684 | //assert('$key'); |
---|
685 | $fn($ref, $key); |
---|
686 | } |
---|
687 | $rs->Close(); |
---|
688 | } |
---|
689 | |
---|
690 | $sql = "DELETE FROM $table WHERE $binary sesskey = $qkey"; |
---|
691 | $rs =& $conn->Execute($sql); |
---|
692 | ADODB_Session::_dumprs($rs); |
---|
693 | if ($rs) { |
---|
694 | $rs->Close(); |
---|
695 | } |
---|
696 | |
---|
697 | return $rs ? true : false; |
---|
698 | } |
---|
699 | |
---|
700 | /*! |
---|
701 | */ |
---|
702 | function gc($maxlifetime) { |
---|
703 | $conn =& ADODB_Session::_conn(); |
---|
704 | $debug = ADODB_Session::debug(); |
---|
705 | $expire_notify = ADODB_Session::expireNotify(); |
---|
706 | $optimize = ADODB_Session::optimize(); |
---|
707 | $sync_seconds = ADODB_Session::syncSeconds(); |
---|
708 | $table = ADODB_Session::table(); |
---|
709 | |
---|
710 | if (!$conn) { |
---|
711 | return false; |
---|
712 | } |
---|
713 | |
---|
714 | assert('$table'); |
---|
715 | |
---|
716 | $time = time(); |
---|
717 | |
---|
718 | $binary = $conn->dataProvider === 'mysql' ? '/*! BINARY */' : ''; |
---|
719 | |
---|
720 | if ($expire_notify) { |
---|
721 | reset($expire_notify); |
---|
722 | $fn = next($expire_notify); |
---|
723 | $savem = $conn->SetFetchMode(ADODB_FETCH_NUM); |
---|
724 | $sql = "SELECT expireref, sesskey FROM $table WHERE expiry < $time"; |
---|
725 | $rs =& $conn->Execute($sql); |
---|
726 | ADODB_Session::_dumprs($rs); |
---|
727 | $conn->SetFetchMode($savem); |
---|
728 | if ($rs) { |
---|
729 | $conn->BeginTrans(); |
---|
730 | $keys = array(); |
---|
731 | while (!$rs->EOF) { |
---|
732 | $ref = $rs->fields[0]; |
---|
733 | $key = $rs->fields[1]; |
---|
734 | $fn($ref, $key); |
---|
735 | $del = $conn->Execute("DELETE FROM $table WHERE sesskey='$key'"); |
---|
736 | $rs->MoveNext(); |
---|
737 | } |
---|
738 | $rs->Close(); |
---|
739 | |
---|
740 | $conn->CommitTrans(); |
---|
741 | } |
---|
742 | } else { |
---|
743 | $sql = "DELETE FROM $table WHERE expiry < $time"; |
---|
744 | $rs =& $conn->Execute($sql); |
---|
745 | ADODB_Session::_dumprs($rs); |
---|
746 | if ($rs) { |
---|
747 | $rs->Close(); |
---|
748 | } |
---|
749 | if ($debug) { |
---|
750 | ADOConnection::outp("<p><b>Garbage Collection</b>: $sql</p>"); |
---|
751 | } |
---|
752 | } |
---|
753 | |
---|
754 | // suggested by Cameron, "GaM3R" <gamr@outworld.cx> |
---|
755 | if ($optimize) { |
---|
756 | $driver = ADODB_Session::driver(); |
---|
757 | |
---|
758 | if (preg_match('/mysql/i', $driver)) { |
---|
759 | $sql = "OPTIMIZE TABLE $table"; |
---|
760 | } |
---|
761 | if (preg_match('/postgres/i', $driver)) { |
---|
762 | $sql = "VACUUM $table"; |
---|
763 | } |
---|
764 | if (!empty($sql)) { |
---|
765 | $conn->Execute($sql); |
---|
766 | } |
---|
767 | } |
---|
768 | |
---|
769 | if ($sync_seconds) { |
---|
770 | $sql = 'SELECT '; |
---|
771 | if ($conn->dataProvider === 'oci8') { |
---|
772 | $sql .= "TO_CHAR({$conn->sysTimeStamp}, 'RRRR-MM-DD HH24:MI:SS')"; |
---|
773 | } else { |
---|
774 | $sql .= $conn->sysTimeStamp; |
---|
775 | } |
---|
776 | $sql .= " FROM $table"; |
---|
777 | |
---|
778 | $rs =& $conn->SelectLimit($sql, 1); |
---|
779 | if ($rs && !$rs->EOF) { |
---|
780 | $dbts = reset($rs->fields); |
---|
781 | $rs->Close(); |
---|
782 | $dbt = $conn->UnixTimeStamp($dbts); |
---|
783 | $t = time(); |
---|
784 | |
---|
785 | if (abs($dbt - $t) >= $sync_seconds) { |
---|
786 | global $HTTP_SERVER_VARS; |
---|
787 | $msg = __FILE__ . |
---|
788 | ": Server time for webserver {$HTTP_SERVER_VARS['HTTP_HOST']} not in synch with database: " . |
---|
789 | " database=$dbt ($dbts), webserver=$t (diff=". (abs($dbt - $t) / 3600) . ' hours)'; |
---|
790 | error_log($msg); |
---|
791 | if ($debug) { |
---|
792 | ADOConnection::outp("<p>$msg</p>"); |
---|
793 | } |
---|
794 | } |
---|
795 | } |
---|
796 | } |
---|
797 | |
---|
798 | return true; |
---|
799 | } |
---|
800 | |
---|
801 | } |
---|
802 | |
---|
803 | ADODB_Session::_init(); |
---|
804 | |
---|
805 | |
---|
806 | // for backwards compatability only |
---|
807 | function adodb_sess_open($save_path, $session_name, $persist = true) { |
---|
808 | return ADODB_Session::open($save_path, $session_name, $persist); |
---|
809 | } |
---|
810 | |
---|
811 | // for backwards compatability only |
---|
812 | function adodb_sess_gc($t) |
---|
813 | { |
---|
814 | return ADODB_Session::gc($t); |
---|
815 | } |
---|
816 | |
---|
817 | ?> |
---|