mirror of
https://github.com/EGroupware/egroupware.git
synced 2024-11-12 19:14:57 +01:00
374 lines
9.3 KiB
PHP
374 lines
9.3 KiB
PHP
<?php
|
|
/**
|
|
* @version V4.65 22 July 2005 (c) 2000-2005 John Lim (jlim@natsoft.com.my). All rights reserved.
|
|
* Released under both BSD license and Lesser GPL library license.
|
|
* Whenever there is any discrepancy between the two licenses,
|
|
* the BSD license will take precedence.
|
|
*
|
|
* Set tabs to 4 for best viewing.
|
|
*
|
|
* PEAR DB Emulation Layer for ADODB.
|
|
*
|
|
* The following code is modelled on PEAR DB code by Stig Bakken <ssb@fast.no> |
|
|
* and Tomas V.V.Cox <cox@idecnet.com>. Portions (c)1997-2002 The PHP Group.
|
|
*/
|
|
|
|
/*
|
|
We support:
|
|
|
|
DB_Common
|
|
---------
|
|
query - returns PEAR_Error on error
|
|
limitQuery - return PEAR_Error on error
|
|
prepare - does not return PEAR_Error on error
|
|
execute - does not return PEAR_Error on error
|
|
setFetchMode - supports ASSOC and ORDERED
|
|
errorNative
|
|
quote
|
|
nextID
|
|
disconnect
|
|
|
|
getOne
|
|
getAssoc
|
|
getRow
|
|
getCol
|
|
getAll
|
|
|
|
DB_Result
|
|
---------
|
|
numRows - returns -1 if not supported
|
|
numCols
|
|
fetchInto - does not support passing of fetchmode
|
|
fetchRows - does not support passing of fetchmode
|
|
free
|
|
*/
|
|
|
|
define('ADODB_PEAR',dirname(__FILE__));
|
|
include_once "PEAR.php";
|
|
include_once ADODB_PEAR."/adodb-errorpear.inc.php";
|
|
include_once ADODB_PEAR."/adodb.inc.php";
|
|
|
|
if (!defined('DB_OK')) {
|
|
define("DB_OK", 1);
|
|
define("DB_ERROR",-1);
|
|
|
|
// autoExecute constants
|
|
define('DB_AUTOQUERY_INSERT', 1);
|
|
define('DB_AUTOQUERY_UPDATE', 2);
|
|
|
|
/**
|
|
* This is a special constant that tells DB the user hasn't specified
|
|
* any particular get mode, so the default should be used.
|
|
*/
|
|
|
|
define('DB_FETCHMODE_DEFAULT', 0);
|
|
|
|
/**
|
|
* Column data indexed by numbers, ordered from 0 and up
|
|
*/
|
|
|
|
define('DB_FETCHMODE_ORDERED', 1);
|
|
|
|
/**
|
|
* Column data indexed by column names
|
|
*/
|
|
|
|
define('DB_FETCHMODE_ASSOC', 2);
|
|
|
|
/* for compatibility */
|
|
|
|
define('DB_GETMODE_ORDERED', DB_FETCHMODE_ORDERED);
|
|
define('DB_GETMODE_ASSOC', DB_FETCHMODE_ASSOC);
|
|
|
|
/**
|
|
* these are constants for the tableInfo-function
|
|
* they are bitwised or'ed. so if there are more constants to be defined
|
|
* in the future, adjust DB_TABLEINFO_FULL accordingly
|
|
*/
|
|
|
|
define('DB_TABLEINFO_ORDER', 1);
|
|
define('DB_TABLEINFO_ORDERTABLE', 2);
|
|
define('DB_TABLEINFO_FULL', 3);
|
|
}
|
|
|
|
/**
|
|
* The main "DB" class is simply a container class with some static
|
|
* methods for creating DB objects as well as some utility functions
|
|
* common to all parts of DB.
|
|
*
|
|
*/
|
|
|
|
class DB
|
|
{
|
|
/**
|
|
* Create a new DB object for the specified database type
|
|
*
|
|
* @param $type string database type, for example "mysql"
|
|
*
|
|
* @return object a newly created DB object, or a DB error code on
|
|
* error
|
|
*/
|
|
|
|
function &factory($type)
|
|
{
|
|
include_once(ADODB_DIR."/drivers/adodb-$type.inc.php");
|
|
$obj = &NewADOConnection($type);
|
|
if (!is_object($obj)) $obj =& new PEAR_Error('Unknown Database Driver: '.$dsninfo['phptype'],-1);
|
|
return $obj;
|
|
}
|
|
|
|
/**
|
|
* Create a new DB object and connect to the specified database
|
|
*
|
|
* @param $dsn mixed "data source name", see the DB::parseDSN
|
|
* method for a description of the dsn format. Can also be
|
|
* specified as an array of the format returned by DB::parseDSN.
|
|
*
|
|
* @param $options mixed if boolean (or scalar), tells whether
|
|
* this connection should be persistent (for backends that support
|
|
* this). This parameter can also be an array of options, see
|
|
* DB_common::setOption for more information on connection
|
|
* options.
|
|
*
|
|
* @return object a newly created DB connection object, or a DB
|
|
* error object on error
|
|
*
|
|
* @see DB::parseDSN
|
|
* @see DB::isError
|
|
*/
|
|
function &connect($dsn, $options = false)
|
|
{
|
|
if (is_array($dsn)) {
|
|
$dsninfo = $dsn;
|
|
} else {
|
|
$dsninfo = DB::parseDSN($dsn);
|
|
}
|
|
switch ($dsninfo["phptype"]) {
|
|
case 'pgsql': $type = 'postgres7'; break;
|
|
case 'ifx': $type = 'informix9'; break;
|
|
default: $type = $dsninfo["phptype"]; break;
|
|
}
|
|
|
|
if (is_array($options) && isset($options["debug"]) &&
|
|
$options["debug"] >= 2) {
|
|
// expose php errors with sufficient debug level
|
|
@include_once("adodb-$type.inc.php");
|
|
} else {
|
|
@include_once("adodb-$type.inc.php");
|
|
}
|
|
|
|
@$obj =& NewADOConnection($type);
|
|
if (!is_object($obj)) {
|
|
$obj =& new PEAR_Error('Unknown Database Driver: '.$dsninfo['phptype'],-1);
|
|
return $obj;
|
|
}
|
|
if (is_array($options)) {
|
|
foreach($options as $k => $v) {
|
|
switch(strtolower($k)) {
|
|
case 'persist':
|
|
case 'persistent': $persist = $v; break;
|
|
#ibase
|
|
case 'dialect': $obj->dialect = $v; break;
|
|
case 'charset': $obj->charset = $v; break;
|
|
case 'buffers': $obj->buffers = $v; break;
|
|
#ado
|
|
case 'charpage': $obj->charPage = $v; break;
|
|
#mysql
|
|
case 'clientflags': $obj->clientFlags = $v; break;
|
|
}
|
|
}
|
|
} else {
|
|
$persist = false;
|
|
}
|
|
|
|
if (isset($dsninfo['socket'])) $dsninfo['hostspec'] .= ':'.$dsninfo['socket'];
|
|
else if (isset($dsninfo['port'])) $dsninfo['hostspec'] .= ':'.$dsninfo['port'];
|
|
|
|
if($persist) $ok = $obj->PConnect($dsninfo['hostspec'], $dsninfo['username'],$dsninfo['password'],$dsninfo['database']);
|
|
else $ok = $obj->Connect($dsninfo['hostspec'], $dsninfo['username'],$dsninfo['password'],$dsninfo['database']);
|
|
|
|
if (!$ok) $obj = ADODB_PEAR_Error();
|
|
return $obj;
|
|
}
|
|
|
|
/**
|
|
* Return the DB API version
|
|
*
|
|
* @return int the DB API version number
|
|
*/
|
|
function apiVersion()
|
|
{
|
|
return 2;
|
|
}
|
|
|
|
/**
|
|
* Tell whether a result code from a DB method is an error
|
|
*
|
|
* @param $value int result code
|
|
*
|
|
* @return bool whether $value is an error
|
|
*/
|
|
function isError($value)
|
|
{
|
|
if (!is_object($value)) return false;
|
|
$class = get_class($value);
|
|
return $class == 'pear_error' || is_subclass_of($value, 'pear_error') ||
|
|
$class == 'db_error' || is_subclass_of($value, 'db_error');
|
|
}
|
|
|
|
|
|
/**
|
|
* Tell whether a result code from a DB method is a warning.
|
|
* Warnings differ from errors in that they are generated by DB,
|
|
* and are not fatal.
|
|
*
|
|
* @param $value mixed result value
|
|
*
|
|
* @return bool whether $value is a warning
|
|
*/
|
|
function isWarning($value)
|
|
{
|
|
return false;
|
|
/*
|
|
return is_object($value) &&
|
|
(get_class( $value ) == "db_warning" ||
|
|
is_subclass_of($value, "db_warning"));*/
|
|
}
|
|
|
|
/**
|
|
* Parse a data source name
|
|
*
|
|
* @param $dsn string Data Source Name to be parsed
|
|
*
|
|
* @return array an associative array with the following keys:
|
|
*
|
|
* phptype: Database backend used in PHP (mysql, odbc etc.)
|
|
* dbsyntax: Database used with regards to SQL syntax etc.
|
|
* protocol: Communication protocol to use (tcp, unix etc.)
|
|
* hostspec: Host specification (hostname[:port])
|
|
* database: Database to use on the DBMS server
|
|
* username: User name for login
|
|
* password: Password for login
|
|
*
|
|
* The format of the supplied DSN is in its fullest form:
|
|
*
|
|
* phptype(dbsyntax)://username:password@protocol+hostspec/database
|
|
*
|
|
* Most variations are allowed:
|
|
*
|
|
* phptype://username:password@protocol+hostspec:110//usr/db_file.db
|
|
* phptype://username:password@hostspec/database_name
|
|
* phptype://username:password@hostspec
|
|
* phptype://username@hostspec
|
|
* phptype://hostspec/database
|
|
* phptype://hostspec
|
|
* phptype(dbsyntax)
|
|
* phptype
|
|
*
|
|
* @author Tomas V.V.Cox <cox@idecnet.com>
|
|
*/
|
|
function parseDSN($dsn)
|
|
{
|
|
if (is_array($dsn)) {
|
|
return $dsn;
|
|
}
|
|
|
|
$parsed = array(
|
|
'phptype' => false,
|
|
'dbsyntax' => false,
|
|
'protocol' => false,
|
|
'hostspec' => false,
|
|
'database' => false,
|
|
'username' => false,
|
|
'password' => false
|
|
);
|
|
|
|
// Find phptype and dbsyntax
|
|
if (($pos = strpos($dsn, '://')) !== false) {
|
|
$str = substr($dsn, 0, $pos);
|
|
$dsn = substr($dsn, $pos + 3);
|
|
} else {
|
|
$str = $dsn;
|
|
$dsn = NULL;
|
|
}
|
|
|
|
// Get phptype and dbsyntax
|
|
// $str => phptype(dbsyntax)
|
|
if (preg_match('|^(.+?)\((.*?)\)$|', $str, $arr)) {
|
|
$parsed['phptype'] = $arr[1];
|
|
$parsed['dbsyntax'] = (empty($arr[2])) ? $arr[1] : $arr[2];
|
|
} else {
|
|
$parsed['phptype'] = $str;
|
|
$parsed['dbsyntax'] = $str;
|
|
}
|
|
|
|
if (empty($dsn)) {
|
|
return $parsed;
|
|
}
|
|
|
|
// Get (if found): username and password
|
|
// $dsn => username:password@protocol+hostspec/database
|
|
if (($at = strpos($dsn,'@')) !== false) {
|
|
$str = substr($dsn, 0, $at);
|
|
$dsn = substr($dsn, $at + 1);
|
|
if (($pos = strpos($str, ':')) !== false) {
|
|
$parsed['username'] = urldecode(substr($str, 0, $pos));
|
|
$parsed['password'] = urldecode(substr($str, $pos + 1));
|
|
} else {
|
|
$parsed['username'] = urldecode($str);
|
|
}
|
|
}
|
|
|
|
// Find protocol and hostspec
|
|
// $dsn => protocol+hostspec/database
|
|
if (($pos=strpos($dsn, '/')) !== false) {
|
|
$str = substr($dsn, 0, $pos);
|
|
$dsn = substr($dsn, $pos + 1);
|
|
} else {
|
|
$str = $dsn;
|
|
$dsn = NULL;
|
|
}
|
|
|
|
// Get protocol + hostspec
|
|
// $str => protocol+hostspec
|
|
if (($pos=strpos($str, '+')) !== false) {
|
|
$parsed['protocol'] = substr($str, 0, $pos);
|
|
$parsed['hostspec'] = urldecode(substr($str, $pos + 1));
|
|
} else {
|
|
$parsed['hostspec'] = urldecode($str);
|
|
}
|
|
|
|
// Get dabase if any
|
|
// $dsn => database
|
|
if (!empty($dsn)) {
|
|
$parsed['database'] = $dsn;
|
|
}
|
|
|
|
return $parsed;
|
|
}
|
|
|
|
/**
|
|
* Load a PHP database extension if it is not loaded already.
|
|
*
|
|
* @access public
|
|
*
|
|
* @param $name the base name of the extension (without the .so or
|
|
* .dll suffix)
|
|
*
|
|
* @return bool true if the extension was already or successfully
|
|
* loaded, false if it could not be loaded
|
|
*/
|
|
function assertExtension($name)
|
|
{
|
|
if (!extension_loaded($name)) {
|
|
$dlext = (strncmp(PHP_OS,'WIN',3) === 0) ? '.dll' : '.so';
|
|
@dl($name . $dlext);
|
|
}
|
|
if (!extension_loaded($name)) {
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
}
|
|
|
|
?>
|