ktutil.inc
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<?php
/**
* $Id$
*
* Small non-domain-specific utility functions
*
* Copyright (c) 2004 Jam Warehouse http://www.jamwarehouse.com
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* @version $Revision$
* @author Neil Blakey-Milner <nbm@jamwarehouse.com>, Jam Warehouse (Pty) Ltd, South Africa
*/
class KTUtil {
function extractGPC () {
foreach (func_get_args() as $var) {
if (array_key_exists($var, $_REQUEST)) {
$GLOBALS["$var"] = $_REQUEST["$var"];
}
}
}
function strToBool ($sString, $null = false, $empty = false) {
$sString = strtoupper($sString);
if ($sString == "Y") {
return true;
} elseif (($sString == "N")) {
return false;
} elseif (($sString == "ON")) {
return true;
} elseif (($sString == "OFF")) {
return false;
} elseif (($sString == "")) {
return $empty;
} else {
return $null;
}
}
function intToBool ($sString) {
$iInt = (int)$sString;
return $iInt !== 0;
}
function anyToBool ($sString, $null = false) {
if (is_bool($sString)) {
return $sString;
}
if (is_numeric($sString)) {
return KTUtil::intToBool($sString);
}
if (is_string($sString)) {
if (KTUtil::strToBool($sString) === true) {
return true;
}
}
if (is_null($sString)) {
return $null;
}
return false;
}
function randomString($length=16, $sRandom="ABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890"){
$sString = "";
$iCurLen = 0;
$iRandomLen = strlen($sRandom);
while ($length > $iCurLen) {
$sString .= substr($sRandom, mt_rand(0, $iRandomLen -1), 1);
$iCurLen++;
}
return $sString;
}
function arrayGet($aArray, $sKey, $mDefault = null) {
if (array_key_exists($sKey, $aArray)) {
return $aArray[$sKey];
}
return $mDefault;
}
function requestValue($sKey, $mDefault = null) {
return KTUtil::arrayGet($_REQUEST, $sKey, $mDefault);
}
// {{{ whereToString
/**
* Convert an array of parameterised strings to a single
* parameterised string.
*
* Return null in case of an empty array.
*/
function whereToString($aWhere) {
$aStrings = array();
$aParams = array();
foreach ($aWhere as $oSomething) {
if (is_string($oSomething)) {
$aStrings[] = $oSomething;
} else if (is_array($oSomething)) {
$aStrings[] = $oSomething[0];
$aNewParams = array();
foreach ($oSomething[1] as $oParam) {
if (is_array($oParam)) {
$aNewParams = array_merge($aNewParams, $oParam);
} else {
$aNewParams[] = $oParam;
}
}
$aParams = array_merge($aParams, $aNewParams);
} else {
return PEAR::raiseError("Weird WhereClause passed");
}
}
if (count($aStrings) === 0) {
return null;
}
return array(join(" AND ", $aStrings), $aParams);
}
// }}}
// {{{ safeShellString
function safeShellString () {
$aArgs = func_get_args();
$aSafeArgs = array();
if (is_array($aArgs[0])) {
$aArgs = $aArgs[0];
}
$aSafeArgs[] = escapeshellarg(array_shift($aArgs));
if (is_array($aArgs[0])) {
$aArgs = $aArgs;
}
foreach ($aArgs as $sArg) {
if (empty($sArg)) {
$aSafeArgs[] = "''";
} else {
$aSafeArgs[] = escapeshellarg($sArg);
}
}
return join(" ", $aSafeArgs);
}
// }}}
// {{{
function copyDirectory($sSrc, $sDst, $bMove = false) {
if (file_exists($sDst)) {
return PEAR::raiseError("Destination directory already exists.");
}
if (OS_UNIX) {
if ($bMove && file_exists('/bin/mv')) {
system(KTUtil::safeShellString(array('/bin/mv', $sSrc, $sDst)));
return;
}
if (!$bMove && file_exists('/bin/cp')) {
system(KTUtil::safeShellString(array('/bin/cp', '-R', $sSrc, $sDst)));
return;
}
}
if (substr($sDst, 0, strlen($sSrc)) === $sSrc) {
return PEAR::raiseError("Destination of move is within source");
}
$hSrc = @opendir($sSrc);
if ($hSrc === false) {
return PEAR::raiseError("Could not open source directory: $sSrc");
}
if (@mkdir($sDst, 0777) === false) {
return PEAR::raiseError("Could not create destination directory: $sDst");
}
while (($sFilename = readdir($hSrc)) !== false) {
if (in_array($sFilename, array('.', '..'))) {
continue;
}
$sOldFile = sprintf("%s/%s", $sSrc, $sFilename);
$sNewFile = sprintf("%s/%s", $sDst, $sFilename);
if (is_dir($sOldFile)) {
KTUtil::copyDirectory($sOldFile, $sNewFile, $bMove);
continue;
}
if ($bMove) {
KTUtil::moveFile($sOldFile, $sNewFile);
} else {
copy($sOldFile, $sNewFile);
}
}
if ($bMove) {
rmdir($sSrc);
}
}
// }}}
// {{{ moveDirectory
function moveDirectory($sSrc, $sDst) {
return KTUtil::copyDirectory($sSrc, $sDst, true);
}
// }}}
// {{{ moveFile
function moveFile ($sSrc, $sDst) {
// Only 4.3.3 and above allow us to use rename across partitions
// on Unix-like systems.
if (OS_UNIX) {
// If /bin/mv exists, just use it.
if (file_exists('/bin/mv')) {
system(KTUtil::safeShellString(array('/bin/mv', $sSrc, $sDst)));
return;
}
$aSrcStat = stat($sSrc);
if ($aSrcStat === false) {
return PEAR::raiseError("Couldn't stat source file: $sSrc");
}
$aDstStat = stat(dirname($sDst));
if ($aDstStat === false) {
return PEAR::raiseError("Couldn't stat destination location: $sDst");
}
if ($aSrcStat["dev"] === $aDstStat["dev"]) {
$res = @rename($sSrc, $sDst);
if ($res === false) {
return PEAR::raiseError("Couldn't move file to destination: $sDst");
}
return;
}
$res = @copy($sSrc, $sDst);
if ($res === false) {
return PEAR::raiseError("Could not copy to destination: $sDst");
}
$res = @unlink($sSrc);
if ($res === false) {
return PEAR::raiseError("Could not remove source: $sSrc");
}
} else {
$res = @rename($sSrc, $sDst);
if ($res === false) {
return PEAR::raiseError("Could not move to destination: $sDst");
}
}
}
// }}}
}
?>