REL1_33/php/PHPVersionCheck_8php_source.html

<?php

// phpcs:disable Generic.Arrays.DisallowLongArraySyntax,PSR2.Classes.PropertyDeclaration,MediaWiki.Usage.DirUsage

// phpcs:disable Squiz.Scope.MemberVarScope.Missing,Squiz.Scope.MethodScope.Missing

// @phan-file-suppress PhanPluginDuplicateConditionalNullCoalescing


class PHPVersionCheck {

    /* @var string The number of the MediaWiki version used. */

    var $mwVersion = '1.33';


    /* @var array A mapping of PHP functions to PHP extensions. */

    var $functionsExtensionsMapping = array(

        'mb_substr'   => 'mbstring',

        'xml_parser_create' => 'xml',

        'ctype_digit' => 'ctype',

        'json_decode' => 'json',

        'iconv'       => 'iconv',

        'mime_content_type' => 'fileinfo',

    );


    var $format = 'text';


    var $scriptPath = '/';


    function setFormat( $format ) {

        $this->format = $format;

    }


    function setScriptPath( $scriptPath ) {

        $this->scriptPath = $scriptPath;

    }


    function getPHPInfo( $impl = false ) {

        if (

            ( defined( 'HHVM_VERSION' ) && $impl !== 'PHP' ) ||

            $impl === 'HHVM'

        ) {

            return array(

                'implementation' => 'HHVM',

                'version' => defined( 'HHVM_VERSION' ) ? HHVM_VERSION : 'undefined',

                'vendor' => 'Facebook',

                'upstreamSupported' => '3.18.5',

                'minSupported' => '3.18.5',

                'upgradeURL' => 'https://docs.hhvm.com/hhvm/installation/introduction',

            );

        }

        return array(

            'implementation' => 'PHP',

            'version' => PHP_VERSION,

            'vendor' => 'the PHP Group',

            'upstreamSupported' => '7.2.0',

            'minSupported' => '7.0.13',

            'upgradeURL' => 'https://secure.php.net/downloads.php',

        );

    }


    function checkRequiredPHPVersion() {

        $phpInfo = $this->getPHPInfo();

        $minimumVersion = $phpInfo['minSupported'];

        $otherInfo = $this->getPHPInfo( $phpInfo['implementation'] === 'HHVM' ? 'PHP' : 'HHVM' );

        if (

            !function_exists( 'version_compare' )

            || version_compare( $phpInfo['version'], $minimumVersion ) < 0

        ) {

            $shortText = "MediaWiki $this->mwVersion requires at least {$phpInfo['implementation']}"

                . " version $minimumVersion or {$otherInfo['implementation']} version "

                . "{$otherInfo['minSupported']}, you are using {$phpInfo['implementation']} "

                . "{$phpInfo['version']}.";


            $longText = "Error: You might be using an older {$phpInfo['implementation']} version "

                . "({$phpInfo['implementation']} {$phpInfo['version']}). \n"

                . "MediaWiki $this->mwVersion needs {$phpInfo['implementation']}"

                . " $minimumVersion or higher or {$otherInfo['implementation']} version "

                . "{$otherInfo['minSupported']}.\n\nCheck if you have a"

                . " newer PHP executable with a different name.\n\n";


            // phpcs:disable Generic.Files.LineLength

            $longHtml = <<<HTML

            Please consider <a href="{$phpInfo['upgradeURL']}">upgrading your copy of

            {$phpInfo['implementation']}</a>.

            {$phpInfo['implementation']} versions less than {$phpInfo['upstreamSupported']} are no

            longer supported by {$phpInfo['vendor']} and will not receive

            security or bugfix updates.

        </p>

        <p>

            If for some reason you are unable to upgrade your {$phpInfo['implementation']} version,

            you will need to <a href="https://www.mediawiki.org/wiki/Download">download</a> an

            older version of MediaWiki from our website.

            See our <a href="https://www.mediawiki.org/wiki/Compatibility#PHP">compatibility page</a>

            for details of which versions are compatible with prior versions of {$phpInfo['implementation']}.

HTML;

            // phpcs:enable Generic.Files.LineLength

            $this->triggerError(

                "Supported {$phpInfo['implementation']} versions",

                $shortText,

                $longText,

                $longHtml

            );

        }

    }


    function checkVendorExistence() {

        if ( !file_exists( dirname( __FILE__ ) . '/../vendor/autoload.php' ) ) {

            $shortText = "Installing some external dependencies (e.g. via composer) is required.";


            $longText = "Error: You are missing some external dependencies. \n"

                . "MediaWiki now also has some external dependencies that need to be installed\n"

                . "via composer or from a separate git repo. Please see\n"

                . "https://www.mediawiki.org/wiki/Download_from_Git#Fetch_external_libraries\n"

                . "for help on installing the required components.";


            // phpcs:disable Generic.Files.LineLength

            $longHtml = <<<HTML

        MediaWiki now also has some external dependencies that need to be installed via

        composer or from a separate git repo. Please see

        <a href="https://www.mediawiki.org/wiki/Download_from_Git#Fetch_external_libraries">mediawiki.org</a>

        for help on installing the required components.

HTML;

            // phpcs:enable Generic.Files.LineLength


            $this->triggerError( 'External dependencies', $shortText, $longText, $longHtml );

        }

    }


    function checkExtensionExistence() {

        $missingExtensions = array();

        foreach ( $this->functionsExtensionsMapping as $function => $extension ) {

            if ( !function_exists( $function ) ) {

                $missingExtensions[] = $extension;

            }

        }


        if ( $missingExtensions ) {

            $shortText = "Installing some PHP extensions is required.";


            $missingExtText = '';

            $missingExtHtml = '';

            $baseUrl = 'https://secure.php.net';

            foreach ( $missingExtensions as $ext ) {

                $missingExtText .= " * $ext <$baseUrl/$ext>\n";

                $missingExtHtml .= "<li><b>$ext</b> "

                    . "(<a href=\"$baseUrl/$ext\">more information</a>)</li>";

            }


            $cliText = "Error: Missing one or more required components of PHP.\n"

                . "You are missing a required extension to PHP that MediaWiki needs.\n"

                . "Please install:\n" . $missingExtText;


            $longHtml = <<<HTML

        You are missing a required extension to PHP that MediaWiki

        requires to run. Please install:

        <ul>

        $missingExtHtml

        </ul>

HTML;


            $this->triggerError( 'Required components', $shortText, $cliText, $longHtml );

        }

    }


    function outputHTMLHeader() {

        $protocol = isset( $_SERVER['SERVER_PROTOCOL'] ) ? $_SERVER['SERVER_PROTOCOL'] : 'HTTP/1.0';


        header( "$protocol 500 MediaWiki configuration Error" );

        // Don't cache error pages!  They cause no end of trouble...

        header( 'Cache-control: none' );

        header( 'Pragma: no-cache' );

    }


    function getIndexErrorOutput( $title, $longHtml, $shortText ) {

        $encLogo =

            htmlspecialchars( str_replace( '//', '/', $this->scriptPath . '/' ) .

                'resources/assets/mediawiki.png' );

        $shortHtml = htmlspecialchars( $shortText );


        header( 'Content-type: text/html; charset=UTF-8' );


        $finalOutput = <<<HTML

<!DOCTYPE html>

<html lang="en" dir="ltr">

    <head>

        <meta charset="UTF-8" />

        <title>MediaWiki {$this->mwVersion}</title>

        <style media='screen'>

            body {

                color: #000;

                background-color: #fff;

                font-family: sans-serif;

                padding: 2em;

                text-align: center;

            }

            p, img, h1, h2, ul  {

                text-align: left;

                margin: 0.5em 0 1em;

            }

            h1 {

                font-size: 120%;

            }

            h2 {

                font-size: 110%;

            }

        </style>

    </head>

    <body>

        <img src="{$encLogo}" alt='The MediaWiki logo' />

        <h1>MediaWiki {$this->mwVersion} internal error</h1>

        <div class='error'>

        <p>

            {$shortHtml}

        </p>

        <h2>{$title}</h2>

        <p>

            {$longHtml}

        </p>

        </div>

    </body>

</html>

HTML;


        return $finalOutput;

    }


    function triggerError( $title, $shortText, $longText, $longHtml ) {

        if ( $this->format === 'html' ) {

            // Used by index.php and mw-config/index.php

            $this->outputHTMLHeader();

            $finalOutput = $this->getIndexErrorOutput( $title, $longHtml, $shortText );

        } else {

            // Used by Maintenance.php (CLI)

            $finalOutput = $longText;

        }


        echo "$finalOutput\n";

        die( 1 );

    }


}


function wfEntryPointCheck( $format = 'text', $scriptPath = '/' ) {

    $phpVersionCheck = new PHPVersionCheck();

    $phpVersionCheck->setFormat( $format );

    $phpVersionCheck->setScriptPath( $scriptPath );

    $phpVersionCheck->checkRequiredPHPVersion();

    $phpVersionCheck->checkVendorExistence();

    $phpVersionCheck->checkExtensionExistence();

}


href
shown</td >< td > a href
Definition All_system_messages.txt:2667

color
in the sidebar</td >< td > font color
Definition All_system_messages.txt:425

and
and that you know you can do these things To protect your we need to make restrictions that forbid anyone to deny you these rights or to ask you to surrender the rights These restrictions translate to certain responsibilities for you if you distribute copies of the or if you modify it For if you distribute copies of such a whether gratis or for a you must give the recipients all the rights that you have You must make sure that receive or can get the source code And you must show them these terms so they know their rights We protect your rights with two and(2) offer you this license which gives you legal permission to copy

copy
and give any other recipients of the Program a copy of this License along with the Program You may charge a fee for the physical act of transferring a copy
Definition COPYING.txt:87

wfEntryPointCheck
wfEntryPointCheck( $format='text', $scriptPath='/')
Check PHP version and that external dependencies are installed, and display an informative error if e...
Definition PHPVersionCheck.php:340

PHPVersionCheck
Definition PHPVersionCheck.php:37

PHPVersionCheck\triggerError
triggerError( $title, $shortText, $longText, $longHtml)
Display something vaguely comprehensible in the event of a totally unrecoverable error.
Definition PHPVersionCheck.php:318

PHPVersionCheck\setFormat
setFormat( $format)
Set the format used for errors.
Definition PHPVersionCheck.php:66

PHPVersionCheck\$scriptPath
$scriptPath
Definition PHPVersionCheck.php:59

PHPVersionCheck\outputHTMLHeader
outputHTMLHeader()
Output headers that prevents error pages to be cached.
Definition PHPVersionCheck.php:235

PHPVersionCheck\setScriptPath
setScriptPath( $scriptPath)
Set the script path used for images in HTML-formatted errors.
Definition PHPVersionCheck.php:75

PHPVersionCheck\$format
$format
Definition PHPVersionCheck.php:54

PHPVersionCheck\checkExtensionExistence
checkExtensionExistence()
Displays an error, if a PHP extension does not exist.
Definition PHPVersionCheck.php:196

PHPVersionCheck\checkRequiredPHPVersion
checkRequiredPHPVersion()
Displays an error, if the installed PHP version does not meet the minimum requirement.
Definition PHPVersionCheck.php:122

PHPVersionCheck\checkVendorExistence
checkVendorExistence()
Displays an error, if the vendor/autoload.php file could not be found.
Definition PHPVersionCheck.php:170

PHPVersionCheck\$functionsExtensionsMapping
$functionsExtensionsMapping
Definition PHPVersionCheck.php:42

PHPVersionCheck\getPHPInfo
getPHPInfo( $impl=false)
Return the version of the installed PHP implementation.
Definition PHPVersionCheck.php:95

PHPVersionCheck\getIndexErrorOutput
getIndexErrorOutput( $title, $longHtml, $shortText)
Returns an error page, which is suitable for output to the end user via a web browser.
Definition PHPVersionCheck.php:252

PHPVersionCheck\$mwVersion
$mwVersion
Definition PHPVersionCheck.php:39

PHP
The ContentHandler facility adds support for arbitrary content types on wiki instead of relying on wikitext for everything It was introduced in MediaWiki Each kind of and so on Built in content types as usual *javascript user provided javascript code *json simple implementation for use by etc *css user provided css code *text plain text In PHP
Definition contenthandler.txt:15

version
Prior to version
Definition maintenance.txt:1

array
The wiki should then use memcached to cache various data To use multiple just add more items to the array To increase the weight of a make its entry a array("192.168.0.1:11211", 2))

MediaWiki
A helper class for throttling authentication attempts.

$ext
if(!is_readable( $file)) $ext
Definition router.php:48

div
div
Definition parserTests.txt:6850

title
title
Definition parserTests.txt:245

style
Bar style
Definition parserTests.txt:218