summaryrefslogtreecommitdiff
path: root/requirements/index.php
blob: b6f6ffe7610480e03ff379925c829c9a58a0fca1 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
<?php
/**
 * PRADO Requirements Checker script
 *
 * @author Qiang Xue <qiang.xue@gmail.com>
 * @link http://www.pradosoft.com/
 * @copyright Copyright &copy; 2005 PradoSoft
 * @license http://www.pradosoft.com/license/
 * @version $Id$
 * @package prado
 */

/**
 * PRADO Requirements Checker script
 *
 * This script will check if your system meets the requirements for running PRADO.
 * It will check if you are running the right version of PHP, if you included
 * the right libraries and if your php.ini file settings are correct.
 *
 * This script is capable of displaying localized messages.
 * All messages are stored in messages.txt. A localized message file is named as
 * messsages-<language code>.txt, and it will be used when the client browser
 * chooses the corresponding language.
 * The script output uses a template named template.html.
 * Its localized version is stored in template-<language code>.html.
 */

// TO BE CONFIRMED: PHP 5.1.0 has problem with I18N and L10N
/**
 * @var array List of requirements (required or not, check item, hint)
 */
$requirements = array(
	array(
		true,
		version_compare(PHP_VERSION,"5.1.0",">="),
		'PHP version check','PHP 5.1.0 or higher required'),
	array(
		true,
		isset($_SERVER["HTTP_ACCEPT"]),
		'$_SERVER["HTTP_ACCEPT"] check',
		'HTTP_ACCEPT required'),
	array(
		true,
		isset($_SERVER["SCRIPT_FILENAME"]) && realpath($_SERVER["SCRIPT_FILENAME"])===realpath(__FILE__),
		'$_SERVER["SCRIPT_FILENAME"] check',
		'SCRIPT_FILENAME required'),
	array(
		true,
		isset($_SERVER["REQUEST_URI"]) || isset($_SERVER["QUERY_STRING"]),
		'$_SERVER["REQUEST_URI"] check',
		'REQUEST_URI required'),
	array(
		true,
		isset($_SERVER["PATH_INFO"]) || strpos($_SERVER["PHP_SELF"],$_SERVER["SCRIPT_NAME"])===0,
		'$_SERVER["PATH_INFO"] check',
		'PATH_INFO required'),
	array(
		true,
		class_exists('Reflection',false),
		'Reflection extension check',
		'Reflection extension required'),
	array(
		true,
		class_exists("DOMDocument",false),
		'DOM extension check',
		'DOM extension required'),
    array(
        true,
        extension_loaded("SPL"),
        'SPL extension check',
        'SPL extension required'),
    array(
        true,
        extension_loaded("CType"),
        'CType extension check',
        'CType extension required'),
    array(
        true,
        extension_loaded("pcre"),
        'PCRE extension check',
        'PCRE extension required'),
    array(
        true,
        class_exists("PDO",false),
        'PDO extension check',
        'PDO extension optional'),
	array(
		false,
		function_exists("iconv"),
		'ICONV extension check',
		'ICONV extension optional'),
	array(
		false,
		extension_loaded("zlib"),
		'Zlib extension check',
		'Zlib extension optional'),
	array(
		false,
		extension_loaded("sqlite"),
		'SQLite extension check',
		'SQLite extension optional'),
	array(
		false,
		extension_loaded("memcache"),
		'Memcache extension check',
		'Memcache extension optional'),
	array(
		false,
		extension_loaded("apc"),
		'APC extension check',
		'APC extension optional'),
	array(
		false,
		extension_loaded("mcrypt"),
		'Mcrypt extension check',
		'Mcrypt extension optional'),
	array(
		false,
		extension_loaded("xsl"),
		'XSL extension check',
		'XSL extension optional'),
	array(
		false,
		extension_loaded("soap"),
		'SOAP extension check',
		'SOAP extension optiona'),
);

$results = "<table class=\"result\">\n";
$conclusion = 0;
foreach($requirements as $requirement)
{
	list($required,$expression,$aspect,$hint)=$requirement;
	//eval('$ret='.$expression.';');
	$ret=$expression;
	if($required)
	{
		if($ret)
			$ret='passed';
		else
		{
			$conclusion=1;
			$ret='error';
		}
	}
	else
	{
		if($ret)
			$ret='passed';
		else
		{
			if($conclusion!==1)
				$conclusion=2;
			$ret='warning';
		}
	}
	$results.="<tr class=\"$ret\"><td class=\"$ret\">".lmessage($aspect)."</td><td class=\"$ret\">".lmessage($hint)."</td></tr>\n";
}
$results .= '</table>';
if($conclusion===0)
	$conclusion=lmessage('all passed');
else if($conclusion===1)
	$conclusion=lmessage('failed');
else
	$conclusion=lmessage('passed with warnings');

$tokens = array(
	'%%Conclusion%%' => $conclusion,
	'%%Details%%' => $results,
	'%%Version%%' => $_SERVER['SERVER_SOFTWARE'].' <a href="http://www.pradosoft.com/">PRADO</a>/'.getPradoVersion(),
	'%%Time%%' => @strftime('%Y-%m-%d %H:%m',time()),
);

$lang=getPreferredLanguage();
$templateFile=dirname(__FILE__)."/template-$lang.html";
if(!is_file($templateFile))
	$templateFile=dirname(__FILE__).'/template.html';
if(($content=@file_get_contents($templateFile))===false)
	die("Unable to open template file '$templateFile'.");

header('Content-Type: text/html; charset=UTF-8');
echo strtr($content,$tokens);

/**
 * Returns a localized message according to user preferred language.
 * @param string message to be translated
 * @return string translated message
 */
function lmessage($token)
{
	static $messages=null;
	if($messages===null)
	{
		$lang = getPreferredLanguage();
		$msgFile=dirname(__FILE__)."/messages-$lang.txt";
		if(!is_file($msgFile))
			$msgFile=dirname(__FILE__).'/messages.txt';
		if(($entries=@file($msgFile))!==false)
		{
			foreach($entries as $entry)
			{
				@list($code,$message)=explode('=',$entry,2);
				$messages[trim($code)]=trim($message);
			}
		}
	}
	return isset($messages[$token])?$messages[$token]:$token;
}

/**
 * Returns a list of user preferred languages.
 * The languages are returned as an array. Each array element
 * represents a single language preference. The languages are ordered
 * according to user preferences. The first language is the most preferred.
 * @return array list of user preferred languages.
 */
function getUserLanguages()
{
	static $languages=null;
	if($languages===null)
	{
		$languages=array();
		foreach(explode(',',$_SERVER['HTTP_ACCEPT_LANGUAGE']) as $language)
		{
			$array=split(';q=',trim($language));
			$languages[trim($array[0])]=isset($array[1])?(float)$array[1]:1.0;
		}
		arsort($languages);
		$languages=array_keys($languages);
		if(empty($languages))
			$languages[0]='en';
	}
	return $languages;
}

/**
 * Returns the most preferred language by the client user.
 * @return string the most preferred language by the client user, defaults to English.
 */
function getPreferredLanguage()
{
	static $language=null;
	if($language===null)
	{
		$langs=getUserLanguages();
		$lang=explode('-',$langs[0]);
		if(empty($lang[0]) || !function_exists('ctype_alpha') || !ctype_alpha($lang[0]))
			$language='en';
		else
			$language=$lang[0];
	}
	return $language;
}

/**
 * @return string Prado version
 */
function getPradoVersion()
{
	$coreFile=dirname(__FILE__).'/../framework/PradoBase.php';
	if(is_file($coreFile))
	{
		$contents=file_get_contents($coreFile);
		$matches=array();
		if(preg_match('/public static function getVersion.*?return \'(.*?)\'/ms',$contents,$matches)>0)
			return $matches[1];
	}
	return '';
}

?>