MediaWiki REL1_33
CommandFactory.php
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1<?php
21namespace MediaWiki\Shell;
22
24use Psr\Log\LoggerAwareTrait;
25use Psr\Log\NullLogger;
26
33 use LoggerAwareTrait;
34
36 private $limits;
37
39 private $cgroup;
40
42 private $doLogStderr = false;
43
48
52 private $firejail;
53
62 $this->limits = $limits;
63 $this->cgroup = $cgroup;
64 if ( $restrictionMethod === 'autodetect' ) {
65 // On Linux systems check for firejail
66 if ( PHP_OS === 'Linux' && $this->findFirejail() !== false ) {
67 $this->restrictionMethod = 'firejail';
68 } else {
69 $this->restrictionMethod = false;
70 }
71 } else {
72 $this->restrictionMethod = $restrictionMethod;
73 }
74 $this->setLogger( new NullLogger() );
75 }
76
77 private function findFirejail() {
78 if ( $this->firejail === null ) {
79 $this->firejail = ExecutableFinder::findInDefaultPaths( 'firejail' );
80 }
81
82 return $this->firejail;
83 }
84
91 public function logStderr( $yesno = true ) {
92 $this->doLogStderr = $yesno;
93 }
94
100 public function create() {
101 if ( $this->restrictionMethod === 'firejail' ) {
102 $command = new FirejailCommand( $this->findFirejail() );
104 } else {
105 $command = new Command();
106 }
107 $command->setLogger( $this->logger );
108
109 return $command
110 ->limits( $this->limits )
111 ->cgroup( $this->cgroup )
112 ->logStderr( $this->doLogStderr );
113 }
114}
Apache License January AND DISTRIBUTION Definitions License shall mean the terms and conditions for use
$command
Definition cdb.php:65
Utility class to find executables in likely places.
static findInDefaultPaths( $names, $versionInfo=false)
Same as locateExecutable(), but checks in getPossibleBinPaths() by default.
Factory facilitating dependency injection for Command.
__construct(array $limits, $cgroup, $restrictionMethod)
Constructor.
logStderr( $yesno=true)
When enabled, text sent to stderr will be logged with a level of 'error'.
create()
Instantiates a new Command.
Class used for executing shell commands.
Definition Command.php:35
Restricts execution of shell commands using firejail.
const RESTRICT_DEFAULT
Apply a default set of restrictions for improved security out of the box.
Definition Shell.php:100
injection txt This is an overview of how MediaWiki makes use of dependency injection The design described here grew from the discussion of RFC T384 The term dependency this means that anything an object needs to operate should be injected from the the object itself should only know narrow no concrete implementation of the logic it relies on The requirement to inject everything typically results in an architecture that based on two main types of and essentially stateless service objects that use other service objects to operate on the value objects As of the beginning MediaWiki is only starting to use the DI approach Much of the code still relies on global state or direct resulting in a highly cyclical dependency which acts as the top level factory for services in MediaWiki which can be used to gain access to default instances of various services MediaWikiServices however also allows new services to be defined and default services to be redefined Services are defined or redefined by providing a callback the instantiator that will return a new instance of the service When it will create an instance of MediaWikiServices and populate it with the services defined in the files listed by thereby bootstrapping the DI framework Per $wgServiceWiringFiles lists includes ServiceWiring php
Definition injection.txt:37
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))
Copyright (C) 2017 Kunal Mehta legoktm@member.fsf.org
Definition Command.php:21