(2010-)
* @license GPLv2 http://files.froxlor.org/misc/COPYING.txt
* @package Language
*
*/
/**
* Function getPreConfig
*
* outputs various content before the update process
* can be continued (askes for agreement whatever is being asked)
*
* @param string version
*
* @return string
*/
function getPreConfig($current_version)
{
$has_preconfig = false;
$return = '
'.makecheckbox('update_changesagreed', 'I have read the update notifications above and I am aware of the changes made to my system.', '1', true, '0', true);
$return .= '
';
$return .= '';
if($has_preconfig) {
return $return;
} else {
return '';
}
}
function versionInUpdate($current_version, $version_to_check)
{
if (!isFroxlor()) {
return true;
}
return (version_compare2($current_version, $version_to_check) == -1 ? true : false);
}
/**
* compare of froxlor versions
*
* @param string $a
* @param string $b
*
* @return integer 0 if equal, 1 if a>b and -1 if b>a
*/
function version_compare2($a, $b) {
// split version into pieces and remove trailing .0
$a = explode(".", rtrim($a, ".0"));
$b = explode(".", rtrim($b, ".0"));
// -svn or -dev or -rc ?
if (stripos($a[count($a)-1], '-') !== false) {
$x = explode("-", $a[count($a)-1]);
$a[count($a)-1] = $x[0];
if (stripos($x[1], 'rc') !== false) {
$a[] = '0';
$a[] = '2'; // rc > dev > svn
// number of rc
$a[] = substr($x[1], 2);
}
else if (stripos($x[1], 'dev') !== false) {
$a[] = '0';
$a[] = '1'; // svn < dev < rc
// number of dev
$a[] = substr($x[1], 3);
}
// -svn version are deprecated
else if (stripos($x[1], 'svn') !== false) {
$a[] = '0';
$a[] = '0'; // svn < dev < rc
// number of svn
$a[] = substr($x[1], 3);
}
else {
// unknown version string
return 0;
}
}
// same with $b
if (stripos($b[count($b)-1], '-') !== false) {
$x = explode("-", $b[count($b)-1]);
$b[count($b)-1] = $x[0];
if (stripos($x[1], 'rc') !== false) {
$b[] = '0';
$b[] = '2'; // rc > dev > svn
// number of rc
$b[] = substr($x[1], 2);
}
else if (stripos($x[1], 'dev') !== false) {
$b[] = '0';
$b[] = '1'; // svn < dev < rc
// number of dev
$b[] = substr($x[1], 3);
}
// -svn version are deprecated
else if (stripos($x[1], 'svn') !== false) {
$b[] = '0';
$b[] = '0'; // svn < dev < rc
// number of svn
$b[] = substr($x[1], 3);
}
else {
// unknown version string
return 0;
}
}
/*
if (count($a) > count($b)) {
if ($a[count($b)-1] == $b[count($b)-1]) {
return -1;
}
}
if (count($b) > count($a)) {
if ($b[count($a)-1] == $a[count($a)-1]) {
return 1;
}
}
*/
foreach ($a as $depth => $aVal) {
// iterate over each piece of A
if (isset($b[$depth])) {
// if B matches A to this depth, compare the values
if ($aVal > $b[$depth]) {
return 1; // A > B
}
else if ($aVal < $b[$depth]) {
return -1; // B > A
}
// an equal result is inconclusive at this point
} else {
// if B does not match A to this depth, then A comes after B in sort order
return 1; // so A > B
}
}
// at this point, we know that to the depth that A and B extend to, they are equivalent.
// either the loop ended because A is shorter than B, or both are equal.
return (count($a) < count($b)) ? -1 : 0;
}