testMinimumPhpVersion.php — Matomo Analytics – Powerful, Privacy-First Insights for WordPress 4.13.3

matomo / app / core / testMinimumPhpVersion.php

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testMinimumPhpVersion.php

233 lines

1	<?php
2
3	/**
4	* Matomo - free/libre analytics platform
5	*
6	* @link https://matomo.org
7	* @license http://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later
8	*
9	*/
10
11	/**
12	* This file is executed before anything else.
13	* It checks the minimum PHP version required to run Matomo.
14	* This file must be compatible PHP4.
15	*/
16
17	$piwik_errorMessage = '';
18
19	// Minimum requirement: stream_resolve_include_path, working json_encode in 5.3.3, namespaces in 5.3
20	// NOTE: when changing this variable, we also need to update
21	// 1) api.matomo.org
22	// 2) tests/travis/generator/Generator.php
23	// 3) composer.json (in two places)
24	// 4) tests/PHPUnit/Integration/ReleaseCheckListTest.php
25	global $piwik_minimumPHPVersion;
26	$piwik_minimumPHPVersion = '7.2.5';
27	$piwik_currentPHPVersion = PHP_VERSION;
28	$minimumPhpInvalid = version_compare($piwik_minimumPHPVersion, $piwik_currentPHPVersion) > 0;
29	if ($minimumPhpInvalid) {
30	$piwik_errorMessage .= "<p><strong>To run Matomo you need at least PHP version $piwik_minimumPHPVersion</strong></p>
31	<p>Unfortunately it seems your webserver is using PHP version $piwik_currentPHPVersion. </p>
32	<p>Please try to update your PHP version, Matomo is really worth it! Nowadays most web hosts
33	support PHP $piwik_minimumPHPVersion.</p>";
34	} else {
35	if (!extension_loaded('session')) {
36	$piwik_errorMessage .= "<p><strong>Matomo and Zend_Session require the session extension</strong></p>
37	<p>It appears your PHP was compiled with <pre>--disable-session</pre>.
38	To enjoy Matomo, you need PHP compiled without that configure option.</p>";
39	}
40
41	if (!function_exists('ini_set')) {
42	$piwik_errorMessage .= "<p><strong>Matomo and Zend_Session require the <code>ini_set()</code> function</strong></p>
43	<p>It appears your PHP has disabled this function.
44	To enjoy Matomo, you need remove <pre>ini_set</pre> from your <pre>disable_functions</pre> directive in php.ini, and restart your webserver.</p>";
45	}
46
47	if (ini_get('mbstring.func_overload')) {
48	$piwik_errorMessage .= "<p><strong>Matomo does not work when PHP is configured with <pre>mbstring.func_overload = " . ini_get('mbstring.func_overload') . "</pre></strong></p>
49	<p>It appears your mbstring extension in PHP is configured to override string functions.
50	To enjoy Matomo, you need to modify php.ini <pre>mbstring.func_overload = 0</pre>, and restart your webserver.</p>";
51	}
52
53	if (!function_exists('json_encode')) {
54	$piwik_errorMessage .= "<p><strong>Matomo requires the php-json extension which provides the functions <code>json_encode()</code> and <code>json_decode()</code></strong></p>
55	<p>It appears your PHP has not yet installed the php-json extension.
56	To use Matomo, please ask your web host to install php-json or install it yourself, for example on debian system: <code>sudo apt-get install php-json</code>. <br/>Then restart your webserver and refresh this page.</p>";
57	}
58
59	if (!file_exists(PIWIK_VENDOR_PATH . '/autoload.php')) {
60	$composerInstall = "In the matomo directory, run in the command line the following (eg. via ssh): \n\n"
61	. "<pre> curl -sS https://getcomposer.org/installer \| php \n\n php composer.phar install\n\n</pre> ";
62	if (DIRECTORY_SEPARATOR === '\\' /* ::isWindows() */) {
63	$composerInstall = "Download and run <a href=\"https://getcomposer.org/Composer-Setup.exe\"><b>Composer-Setup.exe</b></a>, it will install the latest Composer version and set up your PATH so that you can just call composer from any directory in your command line. "
64	. " <br>Then run this command in a terminal in the matomo directory: <br> $ php composer.phar install ";
65	}
66	$piwik_errorMessage .= "<p>It appears the <a href='https://getcomposer.org/' rel='noreferrer noopener' target='_blank'>composer</a> tool is not yet installed. You can install Composer in a few easy steps:\n\n" .
67	"<br/>" . $composerInstall .
68	" This will initialize composer for Matomo and download libraries we use in vendor/* directory." .
69	"\n\n<br/><br/>Then reload this page to access your analytics reports." .
70	"\n\n<br/><br/>For more information check out this FAQ: <a href='https://matomo.org/faq/how-to-install/faq_18271/' rel='noreferrer noopener' target='_blank'>How do I use Matomo from the Git repository?</a>." .
71	"\n\n<br/><br/>Note: if for some reasons you cannot install composer, instead install the latest Matomo release from " .
72	"<a href='https://builds.matomo.org/piwik.zip' rel='noreferrer noopener'>builds.matomo.org</a>.</p>";
73	}
74	}
75
76	define('PAGE_TITLE_WHEN_ERROR', 'Matomo &rsaquo; Error');
77
78	if (!function_exists('Piwik_GetErrorMessagePage')) {
79	/**
80	* Returns true if Piwik should print the backtrace with error messages.
81	*
82	* To make sure the backtrace is printed, define PIWIK_PRINT_ERROR_BACKTRACE.
83	*
84	* @return bool
85	*/
86	function Piwik_ShouldPrintBackTraceWithMessage()
87	{
88	if (
89	class_exists('\Piwik\SettingsServer')
90	&& class_exists('\Piwik\Common')
91	&& \Piwik\SettingsServer::isArchivePhpTriggered()
92	&& \Piwik\Common::isPhpCliMode()
93	) {
94	return true;
95	}
96
97	$bool = (defined('PIWIK_PRINT_ERROR_BACKTRACE') && PIWIK_PRINT_ERROR_BACKTRACE)
98	\|\| !empty($GLOBALS['PIWIK_PRINT_ERROR_BACKTRACE'])
99	\|\| !empty($GLOBALS['PIWIK_TRACKER_DEBUG']);
100
101	return $bool;
102	}
103
104	/**
105	* Displays info/warning/error message in a friendly UI and exits.
106	*
107	* Note: this method should not be called by anyone other than FrontController.
108	*
109	* @param string $message Main message, must be html encoded before calling
110	* @param bool\|string $optionalTrace Backtrace; will be displayed in lighter color
111	* @param bool $optionalLinks If true, will show links to the Piwik website for help
112	* @param bool $optionalLinkBack If true, displays a link to go back
113	* @param bool\|string $logoUrl The URL to the logo to use.
114	* @param bool\|string $faviconUrl The URL to the favicon to use.
115	* @param string $errorLogPrefix String to prepend to the error in log file
116	* @param bool $writeErrorLog If true then a webserver error log will be written, defaults to true
117	* @return string
118	*/
119	function Piwik_GetErrorMessagePage(
120	$message,
121	$optionalTrace = false,
122	$optionalLinks = false,
123	$optionalLinkBack = false,
124	$logoUrl = false,
125	$faviconUrl = false,
126	$isCli = null,
127	$errorLogPrefix = '',
128	bool $writeErrorLog = true,
129	string $redirectUrl = null,
130	int $countdown = null
131	) {
132	$hasCountdownRedirect = !empty($redirectUrl) && !empty($countdown);
133
134	if ($writeErrorLog) {
135	error_log(sprintf("{$errorLogPrefix}Error in Matomo: %s", str_replace("\n", " ", strip_tags($message))));
136	}
137
138	if (!headers_sent()) {
139	header('Content-Type: text/html; charset=utf-8');
140	header('Cache-Control: private, no-cache, no-store');
141
142	$isInternalServerError = preg_match('/(sql\|database\|mysql)/i', $message);
143	if ($isInternalServerError) {
144	header('HTTP/1.1 500 Internal Server Error');
145	}
146	}
147
148	// We return only an HTML fragment for AJAX requests
149	if (
150	isset($_SERVER['HTTP_X_REQUESTED_WITH'])
151	&& (strtolower($_SERVER['HTTP_X_REQUESTED_WITH']) === 'xmlhttprequest')
152	) {
153	return "<div class='alert alert-danger'><strong>Error:</strong> $message</div>";
154	}
155
156	if (empty($logoUrl)) {
157	$logoUrl = "plugins/Morpheus/images/logo.svg";
158	}
159
160	if (empty($faviconUrl)) {
161	$faviconUrl = "plugins/CoreHome/images/favicon.png";
162	}
163
164	if ($optionalTrace) {
165	$optionalTrace = '<h2>Stack trace</h2><pre>' . htmlentities($optionalTrace, ENT_COMPAT \| ENT_HTML401, 'UTF-8') . '</pre>';
166	}
167
168	if ($isCli === null) {
169	$isCli = PHP_SAPI == 'cli';
170	}
171
172	if ($optionalLinks) {
173	$optionalLinks = '<ul>
174	<li><a rel="noreferrer noopener" target="_blank" href="https://matomo.org">Matomo.org homepage</a></li>
175	<li><a rel="noreferrer noopener" target="_blank" href="https://matomo.org/faq/">Frequently Asked Questions</a></li>
176	<li><a rel="noreferrer noopener" target="_blank" href="https://matomo.org/docs/">User Guides</a></li>
177	<li><a rel="noreferrer noopener" target="_blank" href="https://forum.matomo.org/">Matomo Forums</a></li>
178	<li><a rel="noreferrer noopener" target="_blank" href="https://matomo.org/support/?pk_campaign=App_AnErrorOccured&pk_source=Matomo_App&pk_medium=ProfessionalServicesLink">Professional Support for Matomo</a></li>
179	</ul>';
180	}
181	if ($optionalLinkBack) {
182	$optionalLinkBack = '<a href="javascript:window.history.back();">Go Back</a>';
183	}
184
185	$headerPage = file_get_contents(PIWIK_INCLUDE_PATH . '/plugins/Morpheus/templates/simpleLayoutHeader.tpl');
186	$headerPage = str_replace('%logoUrl%', $logoUrl, $headerPage);
187	$headerPage = str_replace('%faviconUrl%', $faviconUrl, $headerPage);
188
189	$footerPage = file_get_contents(PIWIK_INCLUDE_PATH . '/plugins/Morpheus/templates/simpleLayoutFooter.tpl');
190
191	$headerPage = str_replace('{$HTML_TITLE}', PAGE_TITLE_WHEN_ERROR, $headerPage);
192
193	$backLinks = '<p>'
194	. $optionalLinkBack
195	. ' \| <a href="index.php">Go to Matomo</a>'
196	. '</p>';
197
198	$redirectSection = '';
199	if ($hasCountdownRedirect) {
200	$redirectSection = '<p>
201	Please click below if you are not redirected in ' . $countdown . ' seconds</br></br>
202	Go to <a href="' . $redirectUrl . '">' . $redirectUrl . '</a>
203	</p>
204	<script>setTimeout(function(){window.location.href="' . $redirectUrl . '"}, ' . ($countdown * 1000) . ');</script>';
205	$backLinks = '';
206	}
207
208	$content = '<h2>' . $message . '</h2>'
209	. $redirectSection
210	. $backLinks
211	. ' ' . (Piwik_ShouldPrintBackTraceWithMessage() ? $optionalTrace : '')
212	. ' ' . $optionalLinks;
213
214
215	$message = str_replace(["<br />", "<br>", "<br/>", "</p>"], "\n", $message);
216	$message = str_replace("\t", "", $message);
217	$message = strip_tags($message);
218
219	if (!$isCli) {
220	$message = $headerPage . $content . $footerPage;
221	}
222
223	$message .= "\n";
224
225	return $message;
226	}
227	}
228
229	if (!empty($piwik_errorMessage)) {
230	echo Piwik_GetErrorMessagePage($piwik_errorMessage, false, true);
231	exit(1);
232	}
233