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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 | <?php /* -*- tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ /* # ***** BEGIN LICENSE BLOCK ***** # This file is part of Plume Framework, a simple PHP Application Framework. # Copyright (C) 2001-2007 Loic d'Anterroches and contributors. # # Plume Framework is free software; you can redistribute it and/or modify # it under the terms of the GNU Lesser General Public License as published by # the Free Software Foundation; either version 2.1 of the License, or # (at your option) any later version. # # Plume Framework is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU Lesser General Public License for more details. # # You should have received a copy of the GNU Lesser General Public License # along with this program; if not, write to the Free Software # Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA # # ***** END LICENSE BLOCK ***** */ /** * Database class. * * Depending of the parameters, the database object will connect to a MySQL * or SQLite database. */ class Pluf_DB { /** * Get a database connection. */ static function get( $engine , $server , $database , $login , $password , $prefix , $debug =false, $version = '' ) { $engine = 'Pluf_DB_' . $engine ; $con = new $engine ( $login , $password , $server , $database , $prefix , $debug , $version ); return $con ; } } /** * Get the default DB connection. * * The default database connection is defined in the configuration file * through the following configuration variables: * - db_login : Login to connect to the database * - db_password : Password to the database * - db_server : Name of the server * - db_database : Name of the database * - db_table_prefix : Prefix for the table names * - db_version : Version of the database engine * - db_engine : Engine for exampe 'MySQL', 'SQLite' * * Once the first connection is created the following calls to Pluf::db() * are getting the same connection. * */ function Pluf_DB_getConnection( $extra =null) { if (isset( $GLOBALS [ '_PX_db' ]) && ( is_resource ( $GLOBALS [ '_PX_db' ]->con_id) or is_object ( $GLOBALS [ '_PX_db' ]->con_id))) { return $GLOBALS [ '_PX_db' ]; } $GLOBALS [ '_PX_db' ] = Pluf_DB::get(Pluf::f( 'db_engine' ), Pluf::f( 'db_server' ), Pluf::f( 'db_database' ), Pluf::f( 'db_login' ), Pluf::f( 'db_password' ), Pluf::f( 'db_table_prefix' ), Pluf::f( 'debug' ), Pluf::f( 'db_version' )); return $GLOBALS [ '_PX_db' ]; } /** * Returns an array of default typecast and quoting for the database ORM. * * Foreach field type you need to provide an array with 2 functions, * the from_db, the to_db. * * $value = from_db($value); * $escaped_value = to_db($value, $dbobject); * * $escaped_value is ready to be put in the SQL, that is if this is a * string, the value is quoted and escaped for example with SQLite: * 'my string'' is escaped' or with MySQL 'my string\' is escaped' the * starting ' and ending ' are included! * * @return array Default typecast. */ function Pluf_DB_defaultTypecast() { return array ( 'Pluf_DB_Field_Boolean' => array ( 'Pluf_DB_BooleanFromDb' , 'Pluf_DB_BooleanToDb' ), 'Pluf_DB_Field_Date' => array ( 'Pluf_DB_IdentityFromDb' , 'Pluf_DB_IdentityToDb' ), 'Pluf_DB_Field_Datetime' => array ( 'Pluf_DB_IdentityFromDb' , 'Pluf_DB_IdentityToDb' ), 'Pluf_DB_Field_Email' => array ( 'Pluf_DB_IdentityFromDb' , 'Pluf_DB_IdentityToDb' ), 'Pluf_DB_Field_File' => array ( 'Pluf_DB_IdentityFromDb' , 'Pluf_DB_IdentityToDb' ), 'Pluf_DB_Field_Float' => array ( 'Pluf_DB_IdentityFromDb' , 'Pluf_DB_IdentityToDb' ), 'Pluf_DB_Field_Foreignkey' => array ( 'Pluf_DB_IntegerFromDb' , 'Pluf_DB_IntegerToDb' ), 'Pluf_DB_Field_Integer' => array ( 'Pluf_DB_IntegerFromDb' , 'Pluf_DB_IntegerToDb' ), 'Pluf_DB_Field_Password' => array ( 'Pluf_DB_IdentityFromDb' , 'Pluf_DB_PasswordToDb' ), 'Pluf_DB_Field_Sequence' => array ( 'Pluf_DB_IntegerFromDb' , 'Pluf_DB_IntegerToDb' ), 'Pluf_DB_Field_Text' => array ( 'Pluf_DB_IdentityFromDb' , 'Pluf_DB_IdentityToDb' ), 'Pluf_DB_Field_Varchar' => array ( 'Pluf_DB_IdentityFromDb' , 'Pluf_DB_IdentityToDb' ), 'Pluf_DB_Field_Serialized' => array ( 'Pluf_DB_SerializedFromDb' , 'Pluf_DB_SerializedToDb' ), 'Pluf_DB_Field_Compressed' => array ( 'Pluf_DB_CompressedFromDb' , 'Pluf_DB_CompressedToDb' ), ); } /** * Identity function. * * @param mixed Value * @return mixed Value */ function Pluf_DB_IdentityFromDb( $val ) { return $val ; } /** * Identity function. * * @param mixed Value. * @param object Database handler. * @return string Ready to use for SQL. */ function Pluf_DB_IdentityToDb( $val , $db ) { if (null === $val ) { return 'NULL' ; } return $db ->esc( $val ); } function Pluf_DB_SerializedFromDb( $val ) { if ( $val ) { return unserialize( $val ); } return $val ; } function Pluf_DB_SerializedToDb( $val , $db ) { if (null === $val ) { return 'NULL' ; } return $db ->esc(serialize( $val )); } function Pluf_DB_CompressedFromDb( $val ) { return ( $val ) ? gzinflate( $val ) : $val ; } function Pluf_DB_CompressedToDb( $val , $db ) { return (null === $val ) ? 'NULL' : $db ->esc(gzdeflate( $val , 9)); } function Pluf_DB_BooleanFromDb( $val ) { if ( $val ) { return true; } return false; } function Pluf_DB_BooleanToDb( $val , $db ) { if (null === $val ) { return 'NULL' ; } if ( $val ) { return $db ->esc( '1' ); } return $db ->esc( '0' ); } function Pluf_DB_IntegerFromDb( $val ) { return (null === $val ) ? null : (int) $val ; } function Pluf_DB_IntegerToDb( $val , $db ) { return (null === $val ) ? 'NULL' : (string)(int) $val ; } function Pluf_DB_PasswordToDb( $val , $db ) { $exp = explode ( ':' , $val ); if (in_array( $exp [0], array ( 'sha1' , 'md5' , 'crc32' ))) { return $db ->esc( $val ); } // We need to hash the value. $salt = Pluf_Utils::getRandomString(5); return $db ->esc( 'sha1:' . $salt . ':' .sha1( $salt . $val )); } |