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<?php
2
/**
3
 *
4
 * @category        module
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 * @package         precheck
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 * @author          WebsiteBaker Project
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 * @copyright       2004-2009, Ryan Djurovich
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 * @copyright       2009-2011, Website Baker Org. e.V.
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 * @link			http://www.websitebaker2.org/
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 * @license         http://www.gnu.org/licenses/gpl.html
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 * @platform        WebsiteBaker 2.8.x
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 * @requirements    PHP 5.2.2 and higher
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 * @version         $Id: addon.precheck.inc.php 1499 2011-08-12 11:21:25Z DarkViper $
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 * @filesource		$HeadURL: svn://isteam.dynxs.de/wb-archiv/branches/2.8.x/wb/framework/addon.precheck.inc.php $
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 * @lastmodified    $Date: 2011-08-12 13:21:25 +0200 (Fri, 12 Aug 2011) $
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 *
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 */
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/* -------------------------------------------------------- */
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// Must include code to stop this file being accessed directly
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if(!defined('WB_PATH')) {
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	require_once(dirname(__FILE__).'/globalExceptionHandler.php');
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	throw new IllegalFileException();
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}
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/* -------------------------------------------------------- */
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function getVersion($version, $strip_suffix = true)
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{
28
	/**
29
	 * This funtion creates a version string following the major.minor.revision convention
30
	 * The minor and revision part of the version may not exceed 999 (three digits)
31
	 * An optional suffix part can be added after revision (requires $strip_suffix = false)
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	 *
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	 * EXAMPLES: input --> output
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	 *	5 --> 5.000000; 5.0 --> 5.000000; 5.0.0 --> 5.000000
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	 * 	5.2 --> 5.002000; 5.20 --> 5.002000; 5.2.0 --> 5.002000
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	 * 	5.21 --> 5.002001; 5.2.1 --> 5.002001;
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	 * 	5.27.1 --> 5.027001; 5.2.71 --> 5.002071;
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	 * 	5.27.1 rc1 --> 5.027001_RC1 ($strip_suffix:= false)
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	 */
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	// replace comma by decimal point
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	$version = str_replace(',', '.', $version);
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	// convert version into major.minor.revision numbering system
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	list($major, $minor, $revision) = explode('.', $version, 3);
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	// convert versioning style 5.21 into 5.2.1
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	if ($revision == '' && strlen(intval($minor)) == 2) {
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		$revision = substr($minor, -1);
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		$minor = substr($minor, 0, 1);
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	}
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	// extract possible non numerical suffix from revision part (e.g. Alpha, Beta, RC1)
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	$suffix = strtoupper(trim(substr($revision, strlen(intval($revision)))));
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/*
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	return (int)$major . '.' . sprintf('%03d', (int)$minor) . sprintf('%03d', (int)$revision) .
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		(($strip_suffix == false && $suffix != '') ? '_' . $suffix : '');
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*/
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	// return standard version number (minor and revision numbers may not exceed 999)
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    return sprintf('%d.%03d.%03d%s', (int)$major, (int)minor, (int)$revision,
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    (($strip_suffix == false && $suffix != '') ? '_' . $suffix : ''));
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}
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/**
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 *	As "version_compare" it self seems only got trouble 
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 *	within words like "Alpha", "Beta" a.s.o. this function
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 *	only modify the version-string in the way that these words are replaced by values/numbers.
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 *
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 *	E.g:	"1.2.3 Beta2" => "1.2.322"
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 *			"0.1.1 ALPHA" => "0.1.11"
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 *
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 *	Notice:	Please keep in mind, that this will not correct the way "version_control" 
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 *			handel "1 < 1.0 < 1.0.0 < 1.0.0.0" and will not correct missformed version-strings
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 *			below 2.7, e.g. "1.002 released candidate 2.3"
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 *			
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 *	@since	2.8.0 RC2
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 *
78
 *	@param	string	A versionstring
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 *	@return	string	The modificated versionstring
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 *
81
 */
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function getVersion2 ($version="") {
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	$states = array (
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		'1' => "alpha",
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		'2' => "beta",
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		'4' => "rc",
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		'8' => "final"	
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	);
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	$version = strtolower($version);
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	foreach($states as $value=>$keys) $version = str_replace($keys, $value, $version);
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	$version = str_replace(" ", "", $version);
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97
	return $version;
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}
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function versionCompare($version1, $version2, $operator = '>=')
101
{
102
	/**
103
	 * This funtion performs a comparison of two provided version strings
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	 * The versions are first converted into a string following the major.minor.revision 
105
	 * convention and performs a version_compare afterwards.
106
	 */
107
	// return version_compare(getVersion($version1), getVersion($version2), $operator);
108
	return version_compare(getVersion2($version1), getVersion2($version2), $operator);
109
}
110

    
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function sortPreCheckArray($precheck_array)
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{
113
	/**
114
	 * This funtion sorts the precheck array to a common format
115
	 */
116
	// define desired precheck order
117
	$key_order = array('WB_VERSION', 'WB_ADDONS', 'PHP_VERSION', 'PHP_EXTENSIONS', 'PHP_SETTINGS', 'CUSTOM_CHECKS');
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119
	$temp_array = array();
120
	foreach($key_order as $key) {
121
		if (!isset($precheck_array[$key])) continue;
122
		$temp_array[$key] = $precheck_array[$key];
123
	}
124
	return $temp_array;
125
}
126

    
127
function preCheckAddon($temp_addon_file)
128
{
129
	/**
130
	 * This funtion performs pretest upfront of the Add-On installation process.
131
	 * The requirements can be specified via the array $PRECHECK which needs to
132
	 * be defined in the optional Add-on file precheck.php.
133
	 */
134
	global $database, $admin, $TEXT, $HEADING, $MESSAGE;
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136
	// path to the temporary Add-on folder
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	$temp_path = WB_PATH . '/temp/unzip';
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139
	// check if file precheck.php exists for the Add-On uploaded via WB installation routine
140
	if (!file_exists($temp_path . '/precheck.php')) return;
141
	
142
	// unset any previous declared PRECHECK array
143
	unset($PRECHECK);
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145
	// include Add-On precheck.php file
146
	include($temp_path . '/precheck.php');
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148
	// check if there are any Add-On requirements to check for
149
	if (!(isset($PRECHECK) && count($PRECHECK) > 0)) return;
150
	
151
	// sort precheck array
152
	$PRECHECK = sortPreCheckArray($PRECHECK);
153
	
154
	$failed_checks = 0;
155
	$msg = array();
156
	// check if specified addon requirements are fullfilled
157
	foreach ($PRECHECK as $key => $value) {
158
		switch ($key) {
159
			case 'WB_VERSION':
160
				if (isset($value['VERSION'])) {
161
					// obtain operator for string comparison if exist
162
					$operator = (isset($value['OPERATOR']) &&  trim($value['OPERATOR']) != '') ? $value['OPERATOR'] : '>=';
163
				
164
					// compare versions and extract actual status
165
					$status = versionCompare(WB_VERSION, $value['VERSION'], $operator);
166
					$msg[] = array(
167
						'check'		=> 'WB-' . $TEXT['VERSION'] .': ',
168
						'required'	=> htmlentities($operator) . $value['VERSION'],
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						'actual'	=> WB_VERSION,
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						'status'	=> $status
171
					);
172

    
173
					// increase counter if required
174
					if (!$status) $failed_checks++;
175
				}
176
				break;
177

    
178
			case 'WB_ADDONS':
179
				if (is_array($PRECHECK['WB_ADDONS'])) {
180
					foreach($PRECHECK['WB_ADDONS'] as $addon => $values) {
181
						if (is_array($values)) {
182
							// extract module version and operator
183
							$version = (isset($values['VERSION']) &&  trim($values['VERSION']) != '') ? $values['VERSION'] : '';
184
							$operator = (isset($values['OPERATOR']) &&  trim($values['OPERATOR']) != '') ? $values['OPERATOR'] : '>=';
185
						} else {
186
							// no version and operator specified (only check if addon exists)
187
							$addon = strip_tags($values);
188
							$version = ''; $operator = '';
189
						}
190
					
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						// check if addon is listed in WB database
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						$table = TABLE_PREFIX . 'addons';
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						$sql = "SELECT * FROM `$table` WHERE `directory` = '" . addslashes($addon) . "'";
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						$results = $database->query($sql);
195
					
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						$status = false; $addon_status = $TEXT['NOT_INSTALLED'];
197
						if ($results && $row = $results->fetchRow()) {
198
							$status = true; 
199
							$addon_status = $TEXT['INSTALLED'];
200
						
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							// compare version if required
202
							if ($version != '') {
203
								$status = versionCompare($row['version'], $version, $operator);
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								$addon_status = $row['version'];
205
							}
206
						}
207
					
208
						// provide addon status
209
						$msg[] = array(
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							'check'		=> '&nbsp; ' . $TEXT['ADDON'] . ': ' . htmlentities($addon),
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							'required'	=> ($version != '') ? $operator . '&nbsp;' . $version : $TEXT['INSTALLED'],
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							'actual'	=> $addon_status,
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							'status'	=> $status
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						);
215
						
216
						// increase counter if required
217
						if (!$status) $failed_checks++;
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					}
219
				}
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				break;
221

    
222
			case 'PHP_VERSION':
223
				if (isset($value['VERSION'])) {
224
					// obtain operator for string comparison if exist
225
					$operator = (isset($value['OPERATOR']) &&  trim($value['OPERATOR']) != '') ? $value['OPERATOR'] : '>=';
226
				
227
					// compare versions and extract actual status
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					$status = versionCompare(PHP_VERSION, $value['VERSION'], $operator);
229
					$msg[] = array(
230
						'check'		=> 'PHP-' . $TEXT['VERSION'] .': ',
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						'required'	=> htmlentities($operator) . '&nbsp;' . $value['VERSION'],
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						'actual'	=> PHP_VERSION,
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						'status'	=> $status
234
					);
235

    
236
					// increase counter if required
237
					if (!$status) $failed_checks++;
238

    
239
				}
240
				break;
241

    
242
			case 'PHP_EXTENSIONS':
243
				if (is_array($PRECHECK['PHP_EXTENSIONS'])) {
244
					foreach($PRECHECK['PHP_EXTENSIONS'] as $extension) {
245
						$status = extension_loaded(strtolower($extension));
246
						$msg[] = array(
247
							'check'		=> '&nbsp; ' . $TEXT['EXTENSION'] . ': ' . htmlentities($extension),
248
							'required'	=> $TEXT['INSTALLED'],
249
							'actual'	=> ($status) ? $TEXT['INSTALLED'] : $TEXT['NOT_INSTALLED'],
250
							'status'	=> $status
251
						);
252

    
253
						// increase counter if required
254
						if (!$status) $failed_checks++;
255
					}
256
				}
257
				break;
258

    
259
			case 'PHP_SETTINGS':
260
				if (is_array($PRECHECK['PHP_SETTINGS'])) {
261
					foreach($PRECHECK['PHP_SETTINGS'] as $setting => $value) {
262
						$actual_setting = ($temp = ini_get($setting)) ? $temp : 0;
263
						$status = ($actual_setting == $value);
264
					
265
						$msg[] = array(
266
							'check'		=> '&nbsp; '. ($setting),
267
							'required'	=> $value,
268
							'actual'	=> $actual_setting,
269
							'status'	=> $status
270
						);
271

    
272
						// increase counter if required
273
						if (!$status) $failed_checks++;
274
					}
275
				}
276
				break;
277

    
278
			case 'CUSTOM_CHECKS':
279
				if (is_array($PRECHECK['CUSTOM_CHECKS'])) {
280
					foreach($PRECHECK['CUSTOM_CHECKS'] as $key => $values) {
281
						$status = (true === array_key_exists('STATUS', $values )) ? $values['STATUS'] : false;
282
						$msg[] = array(
283
							'check'		=> $key,
284
							'required'	=> $values['REQUIRED'],
285
							'actual'	=> $values['ACTUAL'],
286
							'status'	=> $status
287
						);
288
					}
289

    
290
					// increase counter if required
291
					if (!$status) $failed_checks++;
292
				}
293
				break;
294
		}
295
	}
296

    
297
	// leave if all requirements are fullfilled
298
	if ($failed_checks == 0) return;
299
	
300
	// output summary table with requirements not fullfilled
301
	echo <<< EOT
302
	<h2>{$HEADING['ADDON_PRECHECK_FAILED']}</h2>
303
	<p>{$MESSAGE['ADDON']['PRECHECK_FAILED']}</p> 
304

    
305
	<table width="700px" cellpadding="4" border="0" style="margin: 0.5em; border-collapse: collapse; border: 1px solid silver;">
306
	<tr>
307
		<th>{$TEXT['REQUIREMENT']}:</th>
308
		<th>{$TEXT['REQUIRED']}:</th>
309
		<th>{$TEXT['CURRENT']}:</th>
310
	</tr>
311
EOT;
312

    
313
	foreach($msg as $check) {
314
		echo '<tr>';
315
		$style = $check['status'] ? 'color: #46882B;' : 'color: #C00;';
316
		foreach($check as $key => $value) {
317
			if ($key == 'status') continue;
318
			
319
			echo '<td style="' . $style . '">' . $value . '</td>';
320
		}
321
		echo '</tr>';
322
	}
323
	echo '</table>';
324

    
325
	// delete the temp unzip directory
326
	rm_full_dir($temp_path);	
327

    
328
	// delete the temporary zip file of the Add-on
329
	if(file_exists($temp_addon_file)) { unlink($temp_addon_file); }	
330
	
331
	// output status message and die
332
	$admin->print_error('');
333
}
334

    
335
?>
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