[2] | 1 | <?php |
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| 2 | |
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| 3 | |
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| 4 | /* |
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[34] | 5 | V4.94 23 Jan 2007 (c) 2000-2007 John Lim (jlim#natsoft.com.my). All rights reserved. |
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[2] | 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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[34] | 29 | require realpath(dirname(__FILE__) . '/../adodb.inc.php'); |
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[2] | 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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[34] | 36 | |
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| 37 | /* |
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| 38 | Unserialize session data manually. See http://phplens.com/lens/lensforum/msgs.php?id=9821 |
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| 39 | |
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| 40 | From Kerr Schere, to unserialize session data stored via ADOdb. |
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| 41 | 1. Pull the session data from the db and loop through it. |
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| 42 | 2. Inside the loop, you will need to urldecode the data column. |
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| 43 | 3. After urldecode, run the serialized string through this function: |
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| 44 | |
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| 45 | */ |
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| 46 | function adodb_unserialize( $serialized_string ) |
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| 47 | { |
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| 48 | $variables = array( ); |
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| 49 | $a = preg_split( "/(\w+)\|/", $serialized_string, -1, PREG_SPLIT_NO_EMPTY | PREG_SPLIT_DELIM_CAPTURE ); |
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| 50 | for( $i = 0; $i < count( $a ); $i = $i+2 ) { |
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| 51 | $variables[$a[$i]] = unserialize( $a[$i+1] ); |
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| 52 | } |
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| 53 | return( $variables ); |
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| 54 | } |
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| 55 | |
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| 56 | /* |
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| 57 | Thanks Joe Li. See http://phplens.com/lens/lensforum/msgs.php?id=11487&x=1 |
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| 58 | Since adodb 4.61. |
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| 59 | */ |
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| 60 | function adodb_session_regenerate_id() |
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| 61 | { |
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| 62 | $conn =& ADODB_Session::_conn(); |
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| 63 | if (!$conn) return false; |
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| 64 | |
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| 65 | $old_id = session_id(); |
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| 66 | if (function_exists('session_regenerate_id')) { |
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| 67 | session_regenerate_id(); |
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| 68 | } else { |
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| 69 | session_id(md5(uniqid(rand(), true))); |
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| 70 | $ck = session_get_cookie_params(); |
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| 71 | setcookie(session_name(), session_id(), false, $ck['path'], $ck['domain'], $ck['secure']); |
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| 72 | //@session_start(); |
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| 73 | } |
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| 74 | $new_id = session_id(); |
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| 75 | $ok =& $conn->Execute('UPDATE '. ADODB_Session::table(). ' SET sesskey='. $conn->qstr($new_id). ' WHERE sesskey='.$conn->qstr($old_id)); |
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| 76 | |
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| 77 | /* it is possible that the update statement fails due to a collision */ |
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| 78 | if (!$ok) { |
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| 79 | session_id($old_id); |
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| 80 | if (empty($ck)) $ck = session_get_cookie_params(); |
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| 81 | setcookie(session_name(), session_id(), false, $ck['path'], $ck['domain'], $ck['secure']); |
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| 82 | return false; |
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| 83 | } |
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| 84 | |
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| 85 | return true; |
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| 86 | } |
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| 87 | |
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| 88 | /* |
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| 89 | Generate database table for session data |
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| 90 | @see http://phplens.com/lens/lensforum/msgs.php?id=12280 |
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| 91 | @return 0 if failure, 1 if errors, 2 if successful. |
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| 92 | @author Markus Staab http://www.public-4u.de |
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| 93 | */ |
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| 94 | function adodb_session_create_table($schemaFile=null,$conn = null) |
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| 95 | { |
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| 96 | // set default values |
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| 97 | if ($schemaFile===null) $schemaFile = ADODB_SESSION . '/session_schema.xml'; |
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| 98 | if ($conn===null) $conn =& ADODB_Session::_conn(); |
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| 99 | |
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| 100 | if (!$conn) return 0; |
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| 101 | |
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| 102 | $schema = new adoSchema($conn); |
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| 103 | $schema->ParseSchema($schemaFile); |
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| 104 | return $schema->ExecuteSchema(); |
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| 105 | } |
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| 106 | |
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[2] | 107 | /*! |
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| 108 | \static |
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| 109 | */ |
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| 110 | class ADODB_Session { |
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| 111 | ///////////////////// |
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| 112 | // getter/setter methods |
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| 113 | ///////////////////// |
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[34] | 114 | |
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| 115 | /* |
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| 116 | |
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| 117 | function Lock($lock=null) |
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| 118 | { |
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| 119 | static $_lock = false; |
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| 120 | |
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| 121 | if (!is_null($lock)) $_lock = $lock; |
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| 122 | return $lock; |
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| 123 | } |
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| 124 | */ |
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[2] | 125 | /*! |
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| 126 | */ |
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| 127 | function driver($driver = null) { |
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| 128 | static $_driver = 'mysql'; |
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| 129 | static $set = false; |
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| 130 | |
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| 131 | if (!is_null($driver)) { |
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| 132 | $_driver = trim($driver); |
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| 133 | $set = true; |
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| 134 | } elseif (!$set) { |
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| 135 | // backwards compatibility |
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| 136 | if (isset($GLOBALS['ADODB_SESSION_DRIVER'])) { |
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| 137 | return $GLOBALS['ADODB_SESSION_DRIVER']; |
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| 138 | } |
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| 139 | } |
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| 140 | |
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| 141 | return $_driver; |
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| 142 | } |
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| 143 | |
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| 144 | /*! |
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| 145 | */ |
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| 146 | function host($host = null) { |
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| 147 | static $_host = 'localhost'; |
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| 148 | static $set = false; |
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| 149 | |
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| 150 | if (!is_null($host)) { |
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| 151 | $_host = trim($host); |
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| 152 | $set = true; |
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| 153 | } elseif (!$set) { |
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| 154 | // backwards compatibility |
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| 155 | if (isset($GLOBALS['ADODB_SESSION_CONNECT'])) { |
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| 156 | return $GLOBALS['ADODB_SESSION_CONNECT']; |
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| 157 | } |
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| 158 | } |
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| 159 | |
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| 160 | return $_host; |
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| 161 | } |
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| 162 | |
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| 163 | /*! |
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| 164 | */ |
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| 165 | function user($user = null) { |
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| 166 | static $_user = 'root'; |
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| 167 | static $set = false; |
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| 168 | |
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| 169 | if (!is_null($user)) { |
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| 170 | $_user = trim($user); |
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| 171 | $set = true; |
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| 172 | } elseif (!$set) { |
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| 173 | // backwards compatibility |
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| 174 | if (isset($GLOBALS['ADODB_SESSION_USER'])) { |
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| 175 | return $GLOBALS['ADODB_SESSION_USER']; |
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| 176 | } |
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| 177 | } |
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| 178 | |
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| 179 | return $_user; |
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| 180 | } |
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| 181 | |
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| 182 | /*! |
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| 183 | */ |
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| 184 | function password($password = null) { |
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| 185 | static $_password = ''; |
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| 186 | static $set = false; |
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| 187 | |
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| 188 | if (!is_null($password)) { |
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| 189 | $_password = $password; |
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| 190 | $set = true; |
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| 191 | } elseif (!$set) { |
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| 192 | // backwards compatibility |
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| 193 | if (isset($GLOBALS['ADODB_SESSION_PWD'])) { |
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| 194 | return $GLOBALS['ADODB_SESSION_PWD']; |
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| 195 | } |
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| 196 | } |
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| 197 | |
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| 198 | return $_password; |
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| 199 | } |
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| 200 | |
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| 201 | /*! |
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| 202 | */ |
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| 203 | function database($database = null) { |
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| 204 | static $_database = 'xphplens_2'; |
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| 205 | static $set = false; |
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| 206 | |
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| 207 | if (!is_null($database)) { |
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| 208 | $_database = trim($database); |
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| 209 | $set = true; |
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| 210 | } elseif (!$set) { |
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| 211 | // backwards compatibility |
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| 212 | if (isset($GLOBALS['ADODB_SESSION_DB'])) { |
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| 213 | return $GLOBALS['ADODB_SESSION_DB']; |
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| 214 | } |
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| 215 | } |
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| 216 | |
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| 217 | return $_database; |
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| 218 | } |
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| 219 | |
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| 220 | /*! |
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| 221 | */ |
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[34] | 222 | function persist($persist = null) |
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| 223 | { |
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[2] | 224 | static $_persist = true; |
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| 225 | |
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| 226 | if (!is_null($persist)) { |
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| 227 | $_persist = trim($persist); |
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| 228 | } |
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| 229 | |
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| 230 | return $_persist; |
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| 231 | } |
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| 232 | |
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| 233 | /*! |
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| 234 | */ |
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| 235 | function lifetime($lifetime = null) { |
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| 236 | static $_lifetime; |
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| 237 | static $set = false; |
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| 238 | |
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| 239 | if (!is_null($lifetime)) { |
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| 240 | $_lifetime = (int) $lifetime; |
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| 241 | $set = true; |
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| 242 | } elseif (!$set) { |
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| 243 | // backwards compatibility |
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| 244 | if (isset($GLOBALS['ADODB_SESS_LIFE'])) { |
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| 245 | return $GLOBALS['ADODB_SESS_LIFE']; |
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| 246 | } |
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| 247 | } |
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| 248 | if (!$_lifetime) { |
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| 249 | $_lifetime = ini_get('session.gc_maxlifetime'); |
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| 250 | if ($_lifetime <= 1) { |
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| 251 | // bug in PHP 4.0.3 pl 1 -- how about other versions? |
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| 252 | //print "<h3>Session Error: PHP.INI setting <i>session.gc_maxlifetime</i>not set: $lifetime</h3>"; |
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| 253 | $_lifetime = 1440; |
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| 254 | } |
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| 255 | } |
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| 256 | |
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| 257 | return $_lifetime; |
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| 258 | } |
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| 259 | |
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| 260 | /*! |
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| 261 | */ |
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| 262 | function debug($debug = null) { |
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| 263 | static $_debug = false; |
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| 264 | static $set = false; |
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| 265 | |
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| 266 | if (!is_null($debug)) { |
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| 267 | $_debug = (bool) $debug; |
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| 268 | |
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| 269 | $conn = ADODB_Session::_conn(); |
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| 270 | if ($conn) { |
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| 271 | $conn->debug = $_debug; |
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| 272 | } |
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| 273 | $set = true; |
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| 274 | } elseif (!$set) { |
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| 275 | // backwards compatibility |
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| 276 | if (isset($GLOBALS['ADODB_SESS_DEBUG'])) { |
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| 277 | return $GLOBALS['ADODB_SESS_DEBUG']; |
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| 278 | } |
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| 279 | } |
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| 280 | |
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| 281 | return $_debug; |
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| 282 | } |
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| 283 | |
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| 284 | /*! |
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| 285 | */ |
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| 286 | function expireNotify($expire_notify = null) { |
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| 287 | static $_expire_notify; |
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| 288 | static $set = false; |
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| 289 | |
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| 290 | if (!is_null($expire_notify)) { |
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| 291 | $_expire_notify = $expire_notify; |
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| 292 | $set = true; |
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| 293 | } elseif (!$set) { |
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| 294 | // backwards compatibility |
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| 295 | if (isset($GLOBALS['ADODB_SESSION_EXPIRE_NOTIFY'])) { |
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| 296 | return $GLOBALS['ADODB_SESSION_EXPIRE_NOTIFY']; |
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| 297 | } |
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| 298 | } |
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| 299 | |
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| 300 | return $_expire_notify; |
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| 301 | } |
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| 302 | |
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| 303 | /*! |
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| 304 | */ |
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| 305 | function table($table = null) { |
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| 306 | static $_table = 'sessions'; |
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| 307 | static $set = false; |
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| 308 | |
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| 309 | if (!is_null($table)) { |
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| 310 | $_table = trim($table); |
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| 311 | $set = true; |
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| 312 | } elseif (!$set) { |
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| 313 | // backwards compatibility |
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| 314 | if (isset($GLOBALS['ADODB_SESSION_TBL'])) { |
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| 315 | return $GLOBALS['ADODB_SESSION_TBL']; |
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| 316 | } |
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| 317 | } |
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| 318 | |
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| 319 | return $_table; |
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| 320 | } |
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| 321 | |
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| 322 | /*! |
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| 323 | */ |
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| 324 | function optimize($optimize = null) { |
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| 325 | static $_optimize = false; |
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| 326 | static $set = false; |
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| 327 | |
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| 328 | if (!is_null($optimize)) { |
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| 329 | $_optimize = (bool) $optimize; |
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| 330 | $set = true; |
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| 331 | } elseif (!$set) { |
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| 332 | // backwards compatibility |
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| 333 | if (defined('ADODB_SESSION_OPTIMIZE')) { |
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| 334 | return true; |
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| 335 | } |
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| 336 | } |
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| 337 | |
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| 338 | return $_optimize; |
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| 339 | } |
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| 340 | |
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| 341 | /*! |
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| 342 | */ |
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| 343 | function syncSeconds($sync_seconds = null) { |
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| 344 | static $_sync_seconds = 60; |
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| 345 | static $set = false; |
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| 346 | |
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| 347 | if (!is_null($sync_seconds)) { |
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| 348 | $_sync_seconds = (int) $sync_seconds; |
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| 349 | $set = true; |
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| 350 | } elseif (!$set) { |
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| 351 | // backwards compatibility |
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| 352 | if (defined('ADODB_SESSION_SYNCH_SECS')) { |
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| 353 | return ADODB_SESSION_SYNCH_SECS; |
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| 354 | } |
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| 355 | } |
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| 356 | |
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| 357 | return $_sync_seconds; |
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| 358 | } |
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| 359 | |
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| 360 | /*! |
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| 361 | */ |
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| 362 | function clob($clob = null) { |
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| 363 | static $_clob = false; |
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| 364 | static $set = false; |
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| 365 | |
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| 366 | if (!is_null($clob)) { |
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| 367 | $_clob = strtolower(trim($clob)); |
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| 368 | $set = true; |
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| 369 | } elseif (!$set) { |
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| 370 | // backwards compatibility |
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| 371 | if (isset($GLOBALS['ADODB_SESSION_USE_LOBS'])) { |
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| 372 | return $GLOBALS['ADODB_SESSION_USE_LOBS']; |
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| 373 | } |
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| 374 | } |
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| 375 | |
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| 376 | return $_clob; |
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| 377 | } |
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| 378 | |
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| 379 | /*! |
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| 380 | */ |
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| 381 | function dataFieldName($data_field_name = null) { |
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| 382 | static $_data_field_name = 'data'; |
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| 383 | |
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| 384 | if (!is_null($data_field_name)) { |
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| 385 | $_data_field_name = trim($data_field_name); |
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| 386 | } |
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| 387 | |
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| 388 | return $_data_field_name; |
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| 389 | } |
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| 390 | |
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| 391 | /*! |
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| 392 | */ |
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| 393 | function filter($filter = null) { |
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| 394 | static $_filter = array(); |
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| 395 | |
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| 396 | if (!is_null($filter)) { |
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| 397 | if (!is_array($filter)) { |
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| 398 | $filter = array($filter); |
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| 399 | } |
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| 400 | $_filter = $filter; |
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| 401 | } |
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| 402 | |
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| 403 | return $_filter; |
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| 404 | } |
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| 405 | |
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| 406 | /*! |
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| 407 | */ |
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| 408 | function encryptionKey($encryption_key = null) { |
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| 409 | static $_encryption_key = 'CRYPTED ADODB SESSIONS ROCK!'; |
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| 410 | |
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| 411 | if (!is_null($encryption_key)) { |
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| 412 | $_encryption_key = $encryption_key; |
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| 413 | } |
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| 414 | |
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| 415 | return $_encryption_key; |
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| 416 | } |
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| 417 | |
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| 418 | ///////////////////// |
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| 419 | // private methods |
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| 420 | ///////////////////// |
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| 421 | |
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| 422 | /*! |
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| 423 | */ |
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| 424 | function &_conn($conn=null) { |
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| 425 | return $GLOBALS['ADODB_SESS_CONN']; |
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| 426 | } |
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| 427 | |
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| 428 | /*! |
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| 429 | */ |
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| 430 | function _crc($crc = null) { |
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| 431 | static $_crc = false; |
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| 432 | |
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| 433 | if (!is_null($crc)) { |
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| 434 | $_crc = $crc; |
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| 435 | } |
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| 436 | |
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| 437 | return $_crc; |
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| 438 | } |
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| 439 | |
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| 440 | /*! |
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| 441 | */ |
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| 442 | function _init() { |
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| 443 | session_module_name('user'); |
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| 444 | session_set_save_handler( |
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| 445 | array('ADODB_Session', 'open'), |
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| 446 | array('ADODB_Session', 'close'), |
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| 447 | array('ADODB_Session', 'read'), |
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| 448 | array('ADODB_Session', 'write'), |
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| 449 | array('ADODB_Session', 'destroy'), |
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| 450 | array('ADODB_Session', 'gc') |
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| 451 | ); |
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| 452 | } |
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| 453 | |
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| 454 | |
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| 455 | /*! |
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| 456 | */ |
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| 457 | function _sessionKey() { |
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| 458 | // use this function to create the encryption key for crypted sessions |
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| 459 | // crypt the used key, ADODB_Session::encryptionKey() as key and session_id() as salt |
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| 460 | return crypt(ADODB_Session::encryptionKey(), session_id()); |
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| 461 | } |
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| 462 | |
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| 463 | /*! |
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| 464 | */ |
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| 465 | function _dumprs($rs) { |
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| 466 | $conn =& ADODB_Session::_conn(); |
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| 467 | $debug = ADODB_Session::debug(); |
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| 468 | |
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| 469 | if (!$conn) { |
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| 470 | return; |
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| 471 | } |
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| 472 | |
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| 473 | if (!$debug) { |
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| 474 | return; |
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| 475 | } |
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| 476 | |
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| 477 | if (!$rs) { |
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| 478 | echo "<br />\$rs is null or false<br />\n"; |
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| 479 | return; |
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| 480 | } |
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| 481 | |
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| 482 | //echo "<br />\nAffected_Rows=",$conn->Affected_Rows(),"<br />\n"; |
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| 483 | |
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| 484 | if (!is_object($rs)) { |
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| 485 | return; |
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| 486 | } |
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| 487 | |
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| 488 | require_once ADODB_SESSION.'/../tohtml.inc.php'; |
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| 489 | rs2html($rs); |
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| 490 | } |
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| 491 | |
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| 492 | ///////////////////// |
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| 493 | // public methods |
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| 494 | ///////////////////// |
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[34] | 495 | |
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| 496 | function config($driver, $host, $user, $password, $database=false,$options=false) |
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| 497 | { |
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| 498 | ADODB_Session::driver($driver); |
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| 499 | ADODB_Session::host($host); |
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| 500 | ADODB_Session::user($user); |
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| 501 | ADODB_Session::password($password); |
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| 502 | ADODB_Session::database($database); |
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| 503 | |
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| 504 | if ($driver == 'oci8' || $driver == 'oci8po') $options['lob'] = 'CLOB'; |
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| 505 | |
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| 506 | if (isset($options['table'])) ADODB_Session::table($options['table']); |
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| 507 | if (isset($options['lob'])) ADODB_Session::clob($options['lob']); |
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| 508 | if (isset($options['debug'])) ADODB_Session::debug($options['debug']); |
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| 509 | } |
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[2] | 510 | |
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| 511 | /*! |
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| 512 | Create the connection to the database. |
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| 513 | |
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| 514 | If $conn already exists, reuse that connection |
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| 515 | */ |
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[34] | 516 | function open($save_path, $session_name, $persist = null) |
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| 517 | { |
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[2] | 518 | $conn =& ADODB_Session::_conn(); |
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| 519 | |
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| 520 | if ($conn) { |
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| 521 | return true; |
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| 522 | } |
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| 523 | |
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| 524 | $database = ADODB_Session::database(); |
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| 525 | $debug = ADODB_Session::debug(); |
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| 526 | $driver = ADODB_Session::driver(); |
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| 527 | $host = ADODB_Session::host(); |
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| 528 | $password = ADODB_Session::password(); |
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| 529 | $user = ADODB_Session::user(); |
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| 530 | |
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| 531 | if (!is_null($persist)) { |
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| 532 | ADODB_Session::persist($persist); |
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| 533 | } else { |
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| 534 | $persist = ADODB_Session::persist(); |
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| 535 | } |
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| 536 | |
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| 537 | # these can all be defaulted to in php.ini |
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| 538 | # assert('$database'); |
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| 539 | # assert('$driver'); |
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| 540 | # assert('$host'); |
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| 541 | |
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[34] | 542 | $conn =& ADONewConnection($driver); |
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[2] | 543 | |
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| 544 | if ($debug) { |
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| 545 | $conn->debug = true; |
---|
| 546 | // ADOConnection::outp( " driver=$driver user=$user pwd=$password db=$database "); |
---|
| 547 | } |
---|
| 548 | |
---|
| 549 | if ($persist) { |
---|
[34] | 550 | switch($persist) { |
---|
| 551 | default: |
---|
| 552 | case 'P': $ok = $conn->PConnect($host, $user, $password, $database); break; |
---|
| 553 | case 'C': $ok = $conn->Connect($host, $user, $password, $database); break; |
---|
| 554 | case 'N': $ok = $conn->NConnect($host, $user, $password, $database); break; |
---|
| 555 | } |
---|
[2] | 556 | } else { |
---|
| 557 | $ok = $conn->Connect($host, $user, $password, $database); |
---|
| 558 | } |
---|
| 559 | |
---|
| 560 | if ($ok) $GLOBALS['ADODB_SESS_CONN'] =& $conn; |
---|
| 561 | else |
---|
| 562 | ADOConnection::outp('<p>Session: connection failed</p>', false); |
---|
| 563 | |
---|
| 564 | |
---|
| 565 | return $ok; |
---|
| 566 | } |
---|
| 567 | |
---|
| 568 | /*! |
---|
| 569 | Close the connection |
---|
| 570 | */ |
---|
[34] | 571 | function close() |
---|
| 572 | { |
---|
| 573 | /* |
---|
[2] | 574 | $conn =& ADODB_Session::_conn(); |
---|
[34] | 575 | if ($conn) $conn->Close(); |
---|
| 576 | */ |
---|
[2] | 577 | return true; |
---|
| 578 | } |
---|
| 579 | |
---|
| 580 | /* |
---|
| 581 | Slurp in the session variables and return the serialized string |
---|
| 582 | */ |
---|
[34] | 583 | function read($key) |
---|
| 584 | { |
---|
[2] | 585 | $conn =& ADODB_Session::_conn(); |
---|
| 586 | $data = ADODB_Session::dataFieldName(); |
---|
| 587 | $filter = ADODB_Session::filter(); |
---|
| 588 | $table = ADODB_Session::table(); |
---|
| 589 | |
---|
| 590 | if (!$conn) { |
---|
| 591 | return ''; |
---|
| 592 | } |
---|
| 593 | |
---|
[34] | 594 | //assert('$table'); |
---|
[2] | 595 | |
---|
| 596 | $qkey = $conn->quote($key); |
---|
| 597 | $binary = $conn->dataProvider === 'mysql' ? '/*! BINARY */' : ''; |
---|
[34] | 598 | |
---|
| 599 | $sql = "SELECT $data FROM $table WHERE sesskey = $binary $qkey AND expiry >= " . time(); |
---|
| 600 | /* Lock code does not work as it needs to hold transaction within whole page, and we don't know if |
---|
| 601 | developer has commited elsewhere... :( |
---|
| 602 | */ |
---|
| 603 | #if (ADODB_Session::Lock()) |
---|
| 604 | # $rs =& $conn->RowLock($table, "$binary sesskey = $qkey AND expiry >= " . time(), $data); |
---|
| 605 | #else |
---|
| 606 | |
---|
| 607 | $rs =& $conn->Execute($sql); |
---|
[2] | 608 | //ADODB_Session::_dumprs($rs); |
---|
| 609 | if ($rs) { |
---|
| 610 | if ($rs->EOF) { |
---|
| 611 | $v = ''; |
---|
| 612 | } else { |
---|
| 613 | $v = reset($rs->fields); |
---|
| 614 | $filter = array_reverse($filter); |
---|
| 615 | foreach ($filter as $f) { |
---|
| 616 | if (is_object($f)) { |
---|
| 617 | $v = $f->read($v, ADODB_Session::_sessionKey()); |
---|
| 618 | } |
---|
| 619 | } |
---|
| 620 | $v = rawurldecode($v); |
---|
| 621 | } |
---|
| 622 | |
---|
| 623 | $rs->Close(); |
---|
| 624 | |
---|
| 625 | ADODB_Session::_crc(strlen($v) . crc32($v)); |
---|
| 626 | return $v; |
---|
| 627 | } |
---|
| 628 | |
---|
| 629 | return ''; |
---|
| 630 | } |
---|
| 631 | |
---|
| 632 | /*! |
---|
| 633 | Write the serialized data to a database. |
---|
| 634 | |
---|
| 635 | If the data has not been modified since the last read(), we do not write. |
---|
| 636 | */ |
---|
[34] | 637 | function write($key, $val) |
---|
| 638 | { |
---|
| 639 | global $ADODB_SESSION_READONLY; |
---|
| 640 | |
---|
| 641 | if (!empty($ADODB_SESSION_READONLY)) return; |
---|
| 642 | |
---|
[2] | 643 | $clob = ADODB_Session::clob(); |
---|
| 644 | $conn =& ADODB_Session::_conn(); |
---|
| 645 | $crc = ADODB_Session::_crc(); |
---|
| 646 | $data = ADODB_Session::dataFieldName(); |
---|
| 647 | $debug = ADODB_Session::debug(); |
---|
| 648 | $driver = ADODB_Session::driver(); |
---|
| 649 | $expire_notify = ADODB_Session::expireNotify(); |
---|
| 650 | $filter = ADODB_Session::filter(); |
---|
| 651 | $lifetime = ADODB_Session::lifetime(); |
---|
| 652 | $table = ADODB_Session::table(); |
---|
[34] | 653 | |
---|
[2] | 654 | if (!$conn) { |
---|
| 655 | return false; |
---|
| 656 | } |
---|
[34] | 657 | $qkey = $conn->qstr($key); |
---|
| 658 | |
---|
| 659 | //assert('$table'); |
---|
[2] | 660 | |
---|
| 661 | $expiry = time() + $lifetime; |
---|
| 662 | |
---|
| 663 | $binary = $conn->dataProvider === 'mysql' ? '/*! BINARY */' : ''; |
---|
| 664 | |
---|
| 665 | // crc32 optimization since adodb 2.1 |
---|
| 666 | // now we only update expiry date, thx to sebastian thom in adodb 2.32 |
---|
| 667 | if ($crc !== false && $crc == (strlen($val) . crc32($val))) { |
---|
| 668 | if ($debug) { |
---|
| 669 | echo '<p>Session: Only updating date - crc32 not changed</p>'; |
---|
| 670 | } |
---|
[34] | 671 | |
---|
| 672 | $expirevar = ''; |
---|
| 673 | if ($expire_notify) { |
---|
| 674 | $var = reset($expire_notify); |
---|
| 675 | global $$var; |
---|
| 676 | if (isset($$var)) { |
---|
| 677 | $expirevar = $$var; |
---|
| 678 | } |
---|
[2] | 679 | } |
---|
[34] | 680 | |
---|
| 681 | |
---|
| 682 | $sql = "UPDATE $table SET expiry = ".$conn->Param('0').",expireref=".$conn->Param('1')." WHERE $binary sesskey = ".$conn->Param('2')." AND expiry >= ".$conn->Param('3'); |
---|
| 683 | $rs =& $conn->Execute($sql,array($expiry,$expirevar,$key,time())); |
---|
[2] | 684 | return true; |
---|
| 685 | } |
---|
| 686 | $val = rawurlencode($val); |
---|
| 687 | foreach ($filter as $f) { |
---|
| 688 | if (is_object($f)) { |
---|
| 689 | $val = $f->write($val, ADODB_Session::_sessionKey()); |
---|
| 690 | } |
---|
| 691 | } |
---|
| 692 | |
---|
| 693 | $arr = array('sesskey' => $key, 'expiry' => $expiry, $data => $val, 'expireref' => ''); |
---|
| 694 | if ($expire_notify) { |
---|
| 695 | $var = reset($expire_notify); |
---|
| 696 | global $$var; |
---|
| 697 | if (isset($$var)) { |
---|
| 698 | $arr['expireref'] = $$var; |
---|
| 699 | } |
---|
| 700 | } |
---|
| 701 | |
---|
| 702 | if (!$clob) { // no lobs, simply use replace() |
---|
| 703 | $arr[$data] = $conn->qstr($val); |
---|
| 704 | $rs = $conn->Replace($table, $arr, 'sesskey', $autoQuote = true); |
---|
[34] | 705 | |
---|
[2] | 706 | } else { |
---|
| 707 | // what value shall we insert/update for lob row? |
---|
| 708 | switch ($driver) { |
---|
| 709 | // empty_clob or empty_lob for oracle dbs |
---|
| 710 | case 'oracle': |
---|
| 711 | case 'oci8': |
---|
| 712 | case 'oci8po': |
---|
| 713 | case 'oci805': |
---|
| 714 | $lob_value = sprintf('empty_%s()', strtolower($clob)); |
---|
| 715 | break; |
---|
| 716 | |
---|
| 717 | // null for all other |
---|
| 718 | default: |
---|
| 719 | $lob_value = 'null'; |
---|
| 720 | break; |
---|
| 721 | } |
---|
[34] | 722 | |
---|
| 723 | $conn->StartTrans(); |
---|
| 724 | $expiryref = $conn->qstr($arr['expireref']); |
---|
[2] | 725 | // do we insert or update? => as for sesskey |
---|
| 726 | $rs =& $conn->Execute("SELECT COUNT(*) AS cnt FROM $table WHERE $binary sesskey = $qkey"); |
---|
| 727 | if ($rs && reset($rs->fields) > 0) { |
---|
[34] | 728 | $sql = "UPDATE $table SET expiry = $expiry, $data = $lob_value, expireref=$expiryref WHERE sesskey = $qkey"; |
---|
[2] | 729 | } else { |
---|
[34] | 730 | $sql = "INSERT INTO $table (expiry, $data, sesskey,expireref) VALUES ($expiry, $lob_value, $qkey,$expiryref)"; |
---|
[2] | 731 | } |
---|
[34] | 732 | if ($rs)$rs->Close(); |
---|
| 733 | |
---|
[2] | 734 | |
---|
| 735 | $err = ''; |
---|
| 736 | $rs1 =& $conn->Execute($sql); |
---|
[34] | 737 | if (!$rs1) $err = $conn->ErrorMsg()."\n"; |
---|
| 738 | |
---|
[2] | 739 | $rs2 =& $conn->UpdateBlob($table, $data, $val, " sesskey=$qkey", strtoupper($clob)); |
---|
[34] | 740 | if (!$rs2) $err .= $conn->ErrorMsg()."\n"; |
---|
| 741 | |
---|
[2] | 742 | $rs = ($rs && $rs2) ? true : false; |
---|
[34] | 743 | $conn->CompleteTrans(); |
---|
[2] | 744 | } |
---|
| 745 | |
---|
| 746 | if (!$rs) { |
---|
| 747 | ADOConnection::outp('<p>Session Replace: ' . $conn->ErrorMsg() . '</p>', false); |
---|
| 748 | return false; |
---|
| 749 | } else { |
---|
| 750 | // bug in access driver (could be odbc?) means that info is not committed |
---|
| 751 | // properly unless select statement executed in Win2000 |
---|
| 752 | if ($conn->databaseType == 'access') { |
---|
| 753 | $sql = "SELECT sesskey FROM $table WHERE $binary sesskey = $qkey"; |
---|
| 754 | $rs =& $conn->Execute($sql); |
---|
| 755 | ADODB_Session::_dumprs($rs); |
---|
| 756 | if ($rs) { |
---|
| 757 | $rs->Close(); |
---|
| 758 | } |
---|
| 759 | } |
---|
[34] | 760 | }/* |
---|
| 761 | if (ADODB_Session::Lock()) { |
---|
| 762 | $conn->CommitTrans(); |
---|
| 763 | }*/ |
---|
[2] | 764 | return $rs ? true : false; |
---|
| 765 | } |
---|
| 766 | |
---|
| 767 | /*! |
---|
| 768 | */ |
---|
| 769 | function destroy($key) { |
---|
| 770 | $conn =& ADODB_Session::_conn(); |
---|
| 771 | $table = ADODB_Session::table(); |
---|
| 772 | $expire_notify = ADODB_Session::expireNotify(); |
---|
| 773 | |
---|
| 774 | if (!$conn) { |
---|
| 775 | return false; |
---|
| 776 | } |
---|
| 777 | |
---|
[34] | 778 | //assert('$table'); |
---|
[2] | 779 | |
---|
| 780 | $qkey = $conn->quote($key); |
---|
| 781 | $binary = $conn->dataProvider === 'mysql' ? '/*! BINARY */' : ''; |
---|
| 782 | |
---|
| 783 | if ($expire_notify) { |
---|
| 784 | reset($expire_notify); |
---|
| 785 | $fn = next($expire_notify); |
---|
| 786 | $savem = $conn->SetFetchMode(ADODB_FETCH_NUM); |
---|
| 787 | $sql = "SELECT expireref, sesskey FROM $table WHERE $binary sesskey = $qkey"; |
---|
| 788 | $rs =& $conn->Execute($sql); |
---|
| 789 | ADODB_Session::_dumprs($rs); |
---|
| 790 | $conn->SetFetchMode($savem); |
---|
| 791 | if (!$rs) { |
---|
| 792 | return false; |
---|
| 793 | } |
---|
| 794 | if (!$rs->EOF) { |
---|
| 795 | $ref = $rs->fields[0]; |
---|
| 796 | $key = $rs->fields[1]; |
---|
| 797 | //assert('$ref'); |
---|
| 798 | //assert('$key'); |
---|
| 799 | $fn($ref, $key); |
---|
| 800 | } |
---|
| 801 | $rs->Close(); |
---|
| 802 | } |
---|
| 803 | |
---|
| 804 | $sql = "DELETE FROM $table WHERE $binary sesskey = $qkey"; |
---|
| 805 | $rs =& $conn->Execute($sql); |
---|
| 806 | ADODB_Session::_dumprs($rs); |
---|
| 807 | |
---|
| 808 | return $rs ? true : false; |
---|
| 809 | } |
---|
| 810 | |
---|
| 811 | /*! |
---|
| 812 | */ |
---|
[34] | 813 | function gc($maxlifetime) |
---|
| 814 | { |
---|
[2] | 815 | $conn =& ADODB_Session::_conn(); |
---|
| 816 | $debug = ADODB_Session::debug(); |
---|
| 817 | $expire_notify = ADODB_Session::expireNotify(); |
---|
| 818 | $optimize = ADODB_Session::optimize(); |
---|
| 819 | $sync_seconds = ADODB_Session::syncSeconds(); |
---|
| 820 | $table = ADODB_Session::table(); |
---|
| 821 | |
---|
| 822 | if (!$conn) { |
---|
| 823 | return false; |
---|
| 824 | } |
---|
| 825 | |
---|
| 826 | |
---|
| 827 | $time = time(); |
---|
| 828 | $binary = $conn->dataProvider === 'mysql' ? '/*! BINARY */' : ''; |
---|
| 829 | |
---|
| 830 | if ($expire_notify) { |
---|
| 831 | reset($expire_notify); |
---|
| 832 | $fn = next($expire_notify); |
---|
| 833 | $savem = $conn->SetFetchMode(ADODB_FETCH_NUM); |
---|
| 834 | $sql = "SELECT expireref, sesskey FROM $table WHERE expiry < $time"; |
---|
| 835 | $rs =& $conn->Execute($sql); |
---|
| 836 | ADODB_Session::_dumprs($rs); |
---|
| 837 | $conn->SetFetchMode($savem); |
---|
| 838 | if ($rs) { |
---|
[34] | 839 | $conn->StartTrans(); |
---|
[2] | 840 | $keys = array(); |
---|
| 841 | while (!$rs->EOF) { |
---|
| 842 | $ref = $rs->fields[0]; |
---|
| 843 | $key = $rs->fields[1]; |
---|
| 844 | $fn($ref, $key); |
---|
[34] | 845 | $del = $conn->Execute("DELETE FROM $table WHERE sesskey=".$conn->Param('0'),array($key)); |
---|
[2] | 846 | $rs->MoveNext(); |
---|
| 847 | } |
---|
| 848 | $rs->Close(); |
---|
| 849 | |
---|
[34] | 850 | $conn->CompleteTrans(); |
---|
[2] | 851 | } |
---|
| 852 | } else { |
---|
[34] | 853 | |
---|
| 854 | if (1) { |
---|
| 855 | $sql = "SELECT sesskey FROM $table WHERE expiry < $time"; |
---|
| 856 | $arr =& $conn->GetAll($sql); |
---|
| 857 | foreach ($arr as $row) { |
---|
| 858 | $sql2 = "DELETE FROM $table WHERE sesskey=".$conn->Param('0'); |
---|
| 859 | $conn->Execute($sql2,array($row[0])); |
---|
| 860 | } |
---|
| 861 | } else { |
---|
| 862 | $sql = "DELETE FROM $table WHERE expiry < $time"; |
---|
| 863 | $rs =& $conn->Execute($sql); |
---|
| 864 | ADODB_Session::_dumprs($rs); |
---|
| 865 | if ($rs) $rs->Close(); |
---|
[2] | 866 | } |
---|
| 867 | if ($debug) { |
---|
| 868 | ADOConnection::outp("<p><b>Garbage Collection</b>: $sql</p>"); |
---|
| 869 | } |
---|
| 870 | } |
---|
| 871 | |
---|
| 872 | // suggested by Cameron, "GaM3R" <gamr@outworld.cx> |
---|
| 873 | if ($optimize) { |
---|
| 874 | $driver = ADODB_Session::driver(); |
---|
| 875 | |
---|
| 876 | if (preg_match('/mysql/i', $driver)) { |
---|
| 877 | $sql = "OPTIMIZE TABLE $table"; |
---|
| 878 | } |
---|
| 879 | if (preg_match('/postgres/i', $driver)) { |
---|
| 880 | $sql = "VACUUM $table"; |
---|
| 881 | } |
---|
| 882 | if (!empty($sql)) { |
---|
| 883 | $conn->Execute($sql); |
---|
| 884 | } |
---|
| 885 | } |
---|
| 886 | |
---|
| 887 | if ($sync_seconds) { |
---|
| 888 | $sql = 'SELECT '; |
---|
| 889 | if ($conn->dataProvider === 'oci8') { |
---|
| 890 | $sql .= "TO_CHAR({$conn->sysTimeStamp}, 'RRRR-MM-DD HH24:MI:SS')"; |
---|
| 891 | } else { |
---|
| 892 | $sql .= $conn->sysTimeStamp; |
---|
| 893 | } |
---|
| 894 | $sql .= " FROM $table"; |
---|
| 895 | |
---|
| 896 | $rs =& $conn->SelectLimit($sql, 1); |
---|
| 897 | if ($rs && !$rs->EOF) { |
---|
| 898 | $dbts = reset($rs->fields); |
---|
| 899 | $rs->Close(); |
---|
| 900 | $dbt = $conn->UnixTimeStamp($dbts); |
---|
| 901 | $t = time(); |
---|
| 902 | |
---|
| 903 | if (abs($dbt - $t) >= $sync_seconds) { |
---|
| 904 | $msg = __FILE__ . |
---|
[34] | 905 | ": Server time for webserver {$_SERVER['HTTP_HOST']} not in synch with database: " . |
---|
| 906 | " database=$dbt ($dbts), webserver=$t (diff=". (abs($dbt - $t) / 60) . ' minutes)'; |
---|
[2] | 907 | error_log($msg); |
---|
| 908 | if ($debug) { |
---|
| 909 | ADOConnection::outp("<p>$msg</p>"); |
---|
| 910 | } |
---|
| 911 | } |
---|
| 912 | } |
---|
| 913 | } |
---|
| 914 | |
---|
| 915 | return true; |
---|
| 916 | } |
---|
| 917 | } |
---|
| 918 | |
---|
| 919 | ADODB_Session::_init(); |
---|
[34] | 920 | if (empty($ADODB_SESSION_READONLY)) |
---|
| 921 | register_shutdown_function('session_write_close'); |
---|
[2] | 922 | |
---|
| 923 | // for backwards compatability only |
---|
| 924 | function adodb_sess_open($save_path, $session_name, $persist = true) { |
---|
| 925 | return ADODB_Session::open($save_path, $session_name, $persist); |
---|
| 926 | } |
---|
| 927 | |
---|
| 928 | // for backwards compatability only |
---|
| 929 | function adodb_sess_gc($t) |
---|
| 930 | { |
---|
| 931 | return ADODB_Session::gc($t); |
---|
| 932 | } |
---|
| 933 | |
---|
[34] | 934 | ?> |
---|