530 lines
19 KiB
Plaintext
530 lines
19 KiB
Plaintext
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<?php
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/*
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* Gallery - a web based photo album viewer and editor
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* Copyright (C) 2000-2007 Bharat Mediratta
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or (at
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* your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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/**
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* System checks
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* @package Install
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*/
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class SystemChecksStep extends InstallStep {
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function stepName() {
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return _('System Checks');
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}
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/*
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* Returns the exact bytes value from a php.ini setting
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* Copied from PHP.net's manual entry for ini_get()
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*/
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function _getBytes($val) {
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$val = trim($val);
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$last = $val{strlen($val)-1};
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switch ($last) {
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case 'g':
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case 'G':
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$val *= 1024;
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case 'm':
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case 'M':
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$val *= 1024;
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case 'k':
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case 'K':
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$val *= 1024;
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}
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return $val;
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}
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function processRequest() {
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/* Zend test */
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if (!empty($_GET['zendtest'])) {
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header("Content-Type: text/plain");
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header("Content-Length: 8");
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$x = array(new stdclass());
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/* v-- This may cause PHP to crash! */
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$x = $x[0];
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print "SUCCESS\n";
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return false;
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}
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/* Normal request */
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/* Create GalleryStub to store information for the install core step / install log */
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global $galleryStub;
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$galleryStub = new GalleryStub();
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$failCount = 0;
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$suggestedHtaccess = array();
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$setTimeLimitAvailable = false;
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$template = new StatusTemplate();
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$template->renderHeader(true);
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$template->renderStatusMessage(_('Performing system checks'), '', 0);
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/* assert compatible version of PHP, we accept 4.3.0+ / 5.0.4+ */
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if (!function_exists('version_compare') || version_compare(phpversion(), '4.3.0', '<')
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|| (version_compare(phpversion(), '5.0.0', '>=')
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&& version_compare(phpversion(), '5.0.4', '<'))) {
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$templateData['check'][] =
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array('title' => _('PHP version >= 4.3.0 or >= 5.0.4'),
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'error' => true,
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'notice' => sprintf(
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_("Error: Gallery 2 requires PHP version 4.3.0 or newer or 5.0.4 or " .
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"newer. You have PHP version %s installed. Contact your webserver " .
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"administrator to request an upgrade, available at the %sPHP " .
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"website%s."), phpversion(), '<a href="http://php.net/">', '</a>'));
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$failCount++;
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} else {
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$templateData['check'][] =
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array('title' => _('PHP Version'), 'success' => true);
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}
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/* assert that __FILE__ works correctly */
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if (!SystemChecksStep::CheckFileDirective()) {
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$templateData['check'][] =
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array('title' => _('FILE directive supported'),
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'error' => true,
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'notice' => _('Error: your PHP __FILE__ directive is not functioning ' .
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'correctly. Please file a support request with your ' .
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'webserver administrator or in the Gallery forums.'));
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$failCount++;
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} else {
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$templateData['check'][] =
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array('title' => _('FILE Directive'), 'success' => true);
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}
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/* Make sure that safe mode is not enabled */
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if (GalleryUtilities::getPhpIniBool('safe_mode')) {
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$templateData['check'][] =
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array('title' => _('Safe mode disabled'),
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'error' => true,
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'notice' => _('Error: Your version of PHP is configured with safe mode ' .
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'enabled. You must disable safe mode before Gallery will run.'));
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$failCount++;
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} else {
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$templateData['check'][] =
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array('title' => _('Safe Mode'), 'success' => true);
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}
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/* Make sure we have PCRE support */
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if (!function_exists('preg_match') || !function_exists('preg_replace')) {
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$templateData['check'][] =
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array('title' => _('Regular expressions'),
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'error' => true,
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'notice' => sprintf(
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_('Error: Your PHP is configured without support for %sPerl Compatible ' .
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'Regular Expressions%s. You must enable these functions before ' .
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'Gallery will run.'), '<a href="http://php.net/pcre">', '</a>'));
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$failCount++;
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} /* skip showing 'success' for this one */
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/* Warning when exec() is disabled */
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if (in_array('exec', split(',\s*', ini_get('disable_functions')))) {
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$templateData['check'][] =
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array('title' => _('exec() allowed'),
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'warning' => true,
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'notice' =>
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_('Warning: The exec() function is disabled in your PHP by the <b>disabled' .
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'_functions</b> parameter in php.ini. You won\'t be able to use modules ' .
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'that require external binaries (e.g. ImageMagick, NetPBM or Ffmpeg). ' .
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'This can only be set server-wide, so you will need to change it in the ' .
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'global php.ini.'),
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);
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} else {
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$templateData['check'][] =
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array('title' => _('exec() allowed'), 'success' => true);
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}
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/* Warning when set_time_limit() is disabled */
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if (in_array('set_time_limit', split(',\s*', ini_get('disable_functions')))) {
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$timeLimit = ini_get('max_execution_time');
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$templateData['check'][] =
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array('title' => _('set_time_limit() allowed'),
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'warning' => true,
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'notice' => sprintf(
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_('Warning: The set_time_limit() function is disabled in your PHP by ' .
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'the <b>disabled_functions</b> parameter in php.ini. Gallery can ' .
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'function with this setting, but it will not operate reliably. ' .
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'Any operation that takes longer than %d seconds will fail (and in ' .
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'some cases just return a blank page) possibly leading to data ' .
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'corruption.'), $timeLimit),
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);
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} else {
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$templateData['check'][] =
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array('title' => _('set_time_limit() allowed'), 'success' => true);
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/* Set the time limit large enough for the remaining checks (slow systems) */
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set_time_limit(180);
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$setTimeLimitAvailable = true;
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}
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$template->renderStatusMessage(_('Performing system checks'), '', 0.02);
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/* Make sure filesystem operations are allowed */
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$missingFilesystemFunctions = array();
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foreach (array('fopen', 'fclose', 'fread', 'fwrite', 'file', 'copy', 'rename', 'readfile',
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'file_get_contents', 'copy', 'move_uploaded_file', 'file_exists', 'tempnam', 'glob',
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'closedir', 'stat', 'unlink', 'rmdir', 'mkdir', 'getcwd', 'chdir', 'opendir',
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'readdir', 'chmod') as $function) {
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if (!function_exists($function)) {
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$missingFilesystemFunctions[] = $function;
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}
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}
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if (!empty($missingFilesystemFunctions)) {
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$templateData['check'][] =
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array('title' => _('Filesystem Operations'),
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'error' => true,
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'notice' => sprintf(
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_('Error: Essential filesystem operations are disabled in your PHP by ' .
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'the <b>disabled_functions</b> parameter in php.ini. You must allow ' .
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'these functions before Gallery will run. These functions are ' .
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'missing: %s.'),
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implode(', ', $missingFilesystemFunctions)));
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$failCount++;
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} /* skip showing 'success' for this one */
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/* Warning if memory_limit is set and is too low */
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$memoryLimit = ini_get('memory_limit');
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$title = sprintf('%s (%s)', _('Memory limit'),
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($memoryLimit == '' ? _('no limit') : $memoryLimit . 'b'));
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$minimumMemoryLimit = 16;
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if ($memoryLimit != ''
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&& ($this->_getBytes($memoryLimit) / (1024 * 1024)) < $minimumMemoryLimit) {
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$templateData['check'][] =
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array('title' => $title,
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'warning' => true,
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'notice' => sprintf(
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_('Warning: Your PHP is configured to limit the memory to %sb (<b>' .
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'memory_limit</b> parameter in php.ini). You should raise this limit ' .
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'to at least <b>%sMB</b> for proper Gallery operation.'),
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$memoryLimit, $minimumMemoryLimit),
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);
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$suggestedHtaccess[] = sprintf('php_value memory_limit %sM', $minimumMemoryLimit);
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} else {
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$templateData['check'][] =
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array('title' => $title, 'success' => true);
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}
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/* Warning if file_uploads are not allowed */
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if (! GalleryUtilities::getPhpIniBool('file_uploads')) {
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$templateData['check'][] =
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array('title' => _('File uploads allowed'),
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'warning' => true,
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'notice' =>
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_('Warning: Your PHP is configured not to allow file uploads (<b>file_' .
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'uploads</b> parameter in php.ini). You will need to enable this option ' .
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'if you want to upload files to your Gallery with a web browser.'),
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);
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$suggestedHtaccess[] = 'php_flag file_uploads on';
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} else {
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$templateData['check'][] =
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array('title' => _('File uploads allowed'), 'success' => true);
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}
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/* Warning if upload_max_filesize is less than 2M */
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$title = sprintf('%s (%sb)', _('Maximum upload size'), ini_get('upload_max_filesize'));
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$minimumUploadsize = 2;
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$uploadSize = $this->_getBytes(ini_get('upload_max_filesize')) / (1024 * 1024);
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if ($uploadSize < $minimumUploadsize) {
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$templateData['check'][] =
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array('title' => $title,
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'warning' => true,
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'notice' => sprintf(
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_('Warning: Your PHP is configured to limit the size of file uploads to' .
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' %sb (<b>upload_max_filesize</b> parameter in php.ini). You should ' .
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'raise this limit to allow uploading bigger files.'),
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ini_get('upload_max_filesize')),
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);
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$suggestedHtaccess[] = sprintf('php_value upload_max_filesize %sM', $minimumUploadsize);
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} else {
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$templateData['check'][] =
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array('title' => $title, 'success' => true);
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}
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/* Warning if post_max_size is less than 2M */
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$title = sprintf('%s (%sb)', _('Maximum POST size'), ini_get('post_max_size'));
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$minimumPostsize = 2;
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$postSize = $this->_getBytes(ini_get('post_max_size')) / (1024 * 1024);
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if ($postSize < $minimumPostsize) {
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$templateData['check'][] =
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array('title' => $title,
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'warning' => true,
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'notice' => sprintf(
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_('Warning: Your PHP is configured to limit the post data to a maximum ' .
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'of %sb (<b>post_max_size</b> parameter in php.ini). You should raise' .
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' this limit to allow uploading bigger files.'),
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ini_get('post_max_size')),
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);
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$suggestedHtaccess[] = sprintf('php_value post_max_size %sM', $minimumPostsize);
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} else {
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$templateData['check'][] =
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array('title' => $title, 'success' => true);
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}
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/* Check for gettext support */
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$title = _('Translation support');
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if (!function_exists('dgettext')) {
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$templateData['check'][] =
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array('title' => $title,
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'warning' => true,
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'notice' => sprintf(
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_('Your webserver does not support localization. To enable support for ' .
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'additional languages please instruct your system administrator to ' .
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'reconfigure PHP with the %sgettext%s option enabled.'),
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'<a href="http://php.net/gettext">', '</a>'));
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} else if (!function_exists('bind_textdomain_codeset')) {
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$templateData['check'][] =
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array('title' => $title,
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'warning' => true,
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'notice' => sprintf(
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_('Your PHP is missing the function %sbind_textdomain_codeset%s. This ' .
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'means Gallery may display extended characters for some languages ' .
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'incorrectly.'),
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'<a href="http://php.net/bind_textdomain_codeset">', '</a>'));
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} else if (!function_exists('dngettext')) {
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$templateData['check'][] =
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array('title' => $title,
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'warning' => true,
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'notice' => sprintf(
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_('Your PHP is missing the function %sdngettext%s. This means Gallery ' .
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'will be unable to translate plural forms.'),
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'<a href="http://php.net/dngettext">', '</a>'));
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} else {
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$templateData['check'][] = array('title' => $title, 'success' => true);
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}
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/* $x=$x[0] <--(an object) can crash PHP with zend.ze1_compatibility_mode ON */
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if (GalleryUtilities::getPhpIniBool('zend.ze1_compatibility_mode')) {
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$templateData['check'][] =
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array('title' => _('Zend compatibility mode'),
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'warning' => true,
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'notice' => sprintf(
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_('Warning: Your PHP is configured with Zend ze1_compatibility_mode ' .
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'which can cause PHP to crash. Click <a href="%s">here</a> to test ' .
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'your PHP. If you see "SUCCESS" then your PHP is ok. If you get an ' .
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'error or no response then you must turn off ze1_compatibility_mode ' .
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'before proceeding.'),
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INDEX_PHP . '?step=' . $this->_stepNumber . '&zendtest=1'),
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);
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} /* skip showing 'success' for this one */
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/* Warning if putenv is disabled */
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if (in_array('putenv', split(',\s*', ini_get('disable_functions')))) {
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$templateData['check'][] =
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array('title' => _('putenv() allowed'),
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'warning' => true,
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'notice' =>
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_('Warning: The putenv() function is disabled in your PHP by the <b>' .
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|
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'disabled_functions</b> parameter in php.ini. Gallery can function with ' .
|
||
|
|
'this setting, but on some rare systems Gallery will be unable to run in ' .
|
||
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'other languages than the system language and English.'),
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||
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);
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} /* skip showing 'success' for this one */
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/* Warning if output_buffering / handlers are enabled */
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$outputBuffers = array();
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foreach (array('output_buffering', 'zlib.output_compression') as $outputFunction) {
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|
|
if (GalleryUtilities::getPhpIniBool($outputFunction) ||
|
||
|
|
(int) ini_get($outputFunction) > 0) {
|
||
|
|
$outputBuffers[] = $outputFunction;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
foreach (array('output_handler', 'zlib.output_handler') as $outputHandler) {
|
||
|
|
if (($value = ini_get($outputHandler)) && !empty($value)) {
|
||
|
|
$outputBuffers[] = $outputHandler;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (!empty($outputBuffers)) {
|
||
|
|
$templateData['check'][] =
|
||
|
|
array('title' => _('Output buffering disabled'),
|
||
|
|
'warning' => true,
|
||
|
|
'notice' => sprintf(
|
||
|
|
_('Warning: Output buffering is enabled in your PHP by the <b>%s</b> ' .
|
||
|
|
'parameter(s) in php.ini. Gallery can function with this setting - ' .
|
||
|
|
'downloading files is even faster - but Gallery might be unable to ' .
|
||
|
|
'serve large files (e.g. large videos) and run into the memory limit.' .
|
||
|
|
' Also, some features like the progress bars might not work correctly' .
|
||
|
|
' if output buffering is enabled unless ini_set() is allowed.'),
|
||
|
|
implode(', ', $outputBuffers)),
|
||
|
|
);
|
||
|
|
} /* skip showing 'success' for this one */
|
||
|
|
|
||
|
|
$template->renderStatusMessage(_('Performing system checks'), '', 0.06);
|
||
|
|
|
||
|
|
/* Check all files against MANIFEST */
|
||
|
|
$title = _('Gallery file integrity');
|
||
|
|
if (!SystemChecksStep::CheckFileDirective() || !empty($missingFilesystemFunctions)) {
|
||
|
|
$templateData['check'][] =
|
||
|
|
array('title' => $title,
|
||
|
|
'warning' => true,
|
||
|
|
'notice' => _('Test skipped due to other errors.'));
|
||
|
|
} else {
|
||
|
|
/* Error if no themes are available */
|
||
|
|
if (!SystemChecksStep::AssertThemeIsAvailable()) {
|
||
|
|
$templateData['check'][] =
|
||
|
|
array('title' => _('Theme available'),
|
||
|
|
'error' => true,
|
||
|
|
'notice' => sprintf(
|
||
|
|
_('Error: There must be at least one theme in the %s folder!'),
|
||
|
|
dirname(dirname(dirname(__FILE__)))
|
||
|
|
. DIRECTORY_SEPARATOR . 'themes')
|
||
|
|
);
|
||
|
|
$failCount++;
|
||
|
|
} /* skip showing 'success' for this one */
|
||
|
|
|
||
|
|
/* Now check the MANIFEST files */
|
||
|
|
$isSvnInstall = file_exists(dirname(__FILE__) . '/.svn');
|
||
|
|
$manifest = SystemChecksStep::CheckManifest($template, $setTimeLimitAvailable);
|
||
|
|
if (!isset($manifest)) {
|
||
|
|
$templateData['check'][] =
|
||
|
|
array('title' => $title,
|
||
|
|
'warning' => true,
|
||
|
|
'notice' => _('Manifest missing or inaccessible.'));
|
||
|
|
|
||
|
|
$galleryStub->setConfig('systemchecks.fileintegrity',
|
||
|
|
'Manifest missing or inaccessible.');
|
||
|
|
} else if (empty($manifest['missing']) && empty($manifest['modified'])
|
||
|
|
&& empty($manifest['shouldRemove'])) {
|
||
|
|
$templateData['check'][] = array('title' => $title, 'success' => true);
|
||
|
|
|
||
|
|
$galleryStub->setConfig('systemchecks.fileintegrity',
|
||
|
|
'Ok');
|
||
|
|
} else {
|
||
|
|
ob_start();
|
||
|
|
include(dirname(__FILE__) . '/../templates/ManifestSystemCheck.html');
|
||
|
|
$notice = ob_get_contents();
|
||
|
|
ob_end_clean();
|
||
|
|
|
||
|
|
$templateData['check'][] =
|
||
|
|
array('title' => $title,
|
||
|
|
'warning' => true,
|
||
|
|
'notice' => $notice);
|
||
|
|
|
||
|
|
if (empty($manifest['missing']) && empty($manifest['modified'])) {
|
||
|
|
$galleryStub->setConfig('systemchecks.fileintegrity',
|
||
|
|
'There are some old files');
|
||
|
|
} else {
|
||
|
|
$galleryStub->setConfig('systemchecks.fileintegrity',
|
||
|
|
'There are missing/modified files!');
|
||
|
|
}
|
||
|
|
}
|
||
|
|
$galleryStub->setConfig('systemchecks.issvninstall', $isSvnInstall);
|
||
|
|
}
|
||
|
|
|
||
|
|
$template->renderStatusMessage(_('Performing system checks'), '', 1);
|
||
|
|
$template->hideStatusBlock();
|
||
|
|
|
||
|
|
$templateData['suggestedHtaccess'] = join("\n", $suggestedHtaccess);
|
||
|
|
$templateData['bodyFile'] = 'SystemChecks.html';
|
||
|
|
$this->setComplete($failCount == 0);
|
||
|
|
$this->setInError($failCount > 0);
|
||
|
|
$template->renderBodyAndFooter($templateData);
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
function CheckFileDirective() {
|
||
|
|
if (strstr(__FILE__, 'install/steps/SystemChecksStep.class') ||
|
||
|
|
strstr(__FILE__, '\\install\\steps\\SystemChecksStep.class')) {
|
||
|
|
return true;
|
||
|
|
} else {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/** Verify that there is at least one themes/.../theme.inc file. */
|
||
|
|
function AssertThemeIsAvailable() {
|
||
|
|
$themesFolder = dirname(dirname(dirname(__FILE__))) . '/themes/' ;
|
||
|
|
if (!file_exists($themesFolder)) {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
$dh = opendir($themesFolder);
|
||
|
|
if (!$dh) {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
while (false !== ($folder = readdir($dh))) {
|
||
|
|
if ($folder == '..' || $folder == '.') {
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
if (file_exists($themesFolder . $folder . '/theme.inc')) {
|
||
|
|
closedir($dh);
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
closedir($dh);
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
function CheckManifest(&$statusMonitor, $useSetTimeLimit) {
|
||
|
|
$base = realpath(dirname(__FILE__) . '/../..') . '/';
|
||
|
|
|
||
|
|
if ($useSetTimeLimit) {
|
||
|
|
set_time_limit(180);
|
||
|
|
}
|
||
|
|
$manifest = GalleryUtilities::readManifest();
|
||
|
|
if (empty($manifest)) {
|
||
|
|
return null;
|
||
|
|
}
|
||
|
|
|
||
|
|
$statusMonitor->renderStatusMessage(_('Performing system checks'), '', 0.1);
|
||
|
|
if ($useSetTimeLimit) {
|
||
|
|
set_time_limit(180);
|
||
|
|
}
|
||
|
|
|
||
|
|
$missing = $modified = $shouldRemove = array();
|
||
|
|
$stepSize = max((int)(count($manifest) / 22), 1);
|
||
|
|
$i = 0;
|
||
|
|
foreach ($manifest as $file => $info) {
|
||
|
|
$i++;
|
||
|
|
if ($file == 'MANIFEST') {
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
$path = $base . $file;
|
||
|
|
|
||
|
|
if ($i % $stepSize == 0) {
|
||
|
|
$statusMonitor->renderStatusMessage(_('Performing system checks'), '',
|
||
|
|
0.12 + $i / $stepSize * 0.04);
|
||
|
|
if ($useSetTimeLimit) {
|
||
|
|
set_time_limit(180);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!empty($info['removed'])) {
|
||
|
|
if (file_exists($path)) {
|
||
|
|
$shouldRemove[] = $file;
|
||
|
|
}
|
||
|
|
} else if (!file_exists($path)) {
|
||
|
|
$missing[] = $file;
|
||
|
|
} else {
|
||
|
|
/*
|
||
|
|
* Use size comparison instead of checksum for speed. We have
|
||
|
|
* two sizes, one calculated with unix eols, one with windows eols.
|
||
|
|
*/
|
||
|
|
$actualSize = filesize($path);
|
||
|
|
if ($actualSize != $info['size'] && $actualSize != $info['size_crlf']) {
|
||
|
|
/* This can be useful debug info */
|
||
|
|
if (false) {
|
||
|
|
printf("%s (expected: %s/%s, actual: %s)<br/>", $file,
|
||
|
|
$info['size'], $info['size_crlf'], $actualSize);
|
||
|
|
}
|
||
|
|
$modified[] = $file;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return array('missing' => $missing, 'modified' => $modified,
|
||
|
|
'shouldRemove' => $shouldRemove);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
?>
|