<?php
+/**
+ * This file contains functions used by the install script (config/index.php)
+ * and maintenance scripts. It is not loaded in normal web requests.
+ *
+ * @file
+ */
+
function install_version_checks() {
# We dare not turn output buffer _off_ since this will break completely
# if PHP is globally configured to run through a gzip filter.
die( -1 );
}
if( version_compare( phpversion(), '5.0.0' ) < 0 ) {
- echo "PHP 5.0.0 or higher is required. ABORTING.\n";
+ echo "PHP 5.0.0 or higher is required. If PHP 5 is available only when \n".
+ "PHP files have a .php5 extension, please navigate to <a href=\"index.php5\">index.php5</a> \n".
+ "to continue installation. ABORTING.\n";
die( -1 );
}
"or higher. ABORTING. (http://bugs.php.net/bug.php?id=34879 for details)\n";
die( -1 );
}
+
+ $test = new PhpXmlBugTester();
+ if( !$test->ok ) {
+ echo "Your system has a combination of PHP and libxml2 versions which is buggy\n" .
+ "and can cause hidden data corruption in MediaWiki and other web apps.\n" .
+ "Upgrade to PHP 5.2.9 or later and libxml2 2.7.2 or later!\n" .
+ "ABORTING (http://bugs.php.net/bug.php?id=45996 for details).\n";
+ die( -1 );
+ }
+
global $wgCommandLineMode;
$wgCommandLineMode = true;
@set_time_limit( 0 );
}
-function copyfile( $sdir, $name, $ddir, $perms = 0664 ) {
- copyfileto( $sdir, $name, $ddir, $name, $perms );
-}
-
-function copyfileto( $sdir, $sname, $ddir, $dname, $perms = 0664 ) {
- global $wgInstallOwner, $wgInstallGroup;
-
- $d = "{$ddir}/{$dname}";
- if ( copy( "{$sdir}/{$sname}", $d ) ) {
- if ( isset( $wgInstallOwner ) ) { chown( $d, $wgInstallOwner ); }
- if ( isset( $wgInstallGroup ) ) { chgrp( $d, $wgInstallGroup ); }
- chmod( $d, $perms );
- # print "Copied \"{$sname}\" to \"{$d}\".\n";
- } else {
- print "Failed to copy file \"{$sname}\" to \"{$ddir}/{$dname}\".\n";
- exit();
+/**
+ * Test for PHP+libxml2 bug which breaks XML input subtly with certain versions.
+ * http://bugs.php.net/bug.php?id=45996
+ * Known fixed with PHP 5.2.9 + libxml2-2.7.3
+ */
+class PhpXmlBugTester {
+ private $parsedData = '';
+ public $ok = false;
+ public function __construct() {
+ $charData = '<b>c</b>';
+ $xml = '<a>' . htmlspecialchars( $charData ) . '</a>';
+
+ $parser = xml_parser_create();
+ xml_set_character_data_handler( $parser, array( $this, 'chardata' ) );
+ $parsedOk = xml_parse($parser, $xml, true);
+ $this->ok = $parsedOk && ($this->parsedData == $charData);
}
-}
-
-function copydirectory( $source, $dest ) {
- $handle = opendir( $source );
- while ( false !== ( $f = readdir( $handle ) ) ) {
- $fullname = "$source/$f";
- if ( $f{0} != '.' && is_file( $fullname ) ) {
- copyfile( $source, $f, $dest );
- }
+ public function chardata($parser, $data) {
+ $this->parsedData .= $data;
}
}
return readline( $prompt );
} else {
if ( $isatty ) {
- print $prompt;
- }
- if ( feof( STDIN ) ) {
- return false;
+ $st = readlineEmulation( $prompt );
+ } else {
+ if ( feof( STDIN ) ) {
+ $st = false;
+ } else {
+ $st = fgets(STDIN, 1024);
+ }
}
- $st = fgets(STDIN, 1024);
if ($st === false) return false;
$resp = trim( $st );
return $resp;
}
}
+function findExecutable( $name ) {
+ $paths = explode( PATH_SEPARATOR, getenv( "PATH" ) );
+ foreach( $paths as $path ) {
+ $full = $path . DIRECTORY_SEPARATOR . $name;
+ if( file_exists( $full ) ) {
+ if( wfIsWindows() || is_executable( $full ) ) {
+ return $full;
+ }
+ }
+ }
+ return false;
+}
+
+function readlineEmulation( $prompt ) {
+ $bash = "bash";
+ if( !wfIsWindows() && findExecutable( $bash ) ) {
+ $retval = false;
+ $encPrompt = wfEscapeShellArg( $prompt );
+ $command = "read -er -p $encPrompt && echo \"\$REPLY\"";
+ $encCommand = wfEscapeShellArg( $command );
+ $line = wfShellExec( "$bash -c $encCommand", $retval );
+
+ if( $retval == 0 ) {
+ return $line;
+ } elseif( $retval == 127 ) {
+ // Couldn't execute bash even though we thought we saw it.
+ // Shell probably spit out an error message, sorry :(
+ // Fall through to fgets()...
+ } else {
+ // EOF/ctrl+D
+ return false;
+ }
+ }
+
+ // Fallback... we'll have no editing controls, EWWW
+ if ( feof( STDIN ) ) {
+ return false;
+ }
+ print $prompt;
+ return fgets(STDIN, 1024);
+}
+
+
#
# Read and execute SQL commands from a file
#
function dbsource( $fname, $db = false ) {
+ wfDeprecated( __METHOD__ );
if ( !$db ) {
// Try $wgDatabase, which is used in the install and update scripts
global $wgDatabase;
if ( isset( $wgDatabase ) ) {
- $db =& $wgDatabase;
+ $db = $wgDatabase;
} else {
// No? Well, we must be outside of those scripts, so use the standard method
- $db =& wfGetDB( DB_MASTER );
+ $db = wfGetDB( DB_MASTER );
}
}
$error = $db->sourceFile( $fname );
}
}
-# Obsolete, use Database::fieldExists()
-function field_exists( $table, $field ) {
- $fname = 'Update script: field_exists';
- $db =& wfGetDB( DB_SLAVE );
- $res = $db->query( "DESCRIBE $table", $fname );
- $found = false;
-
- while ( $row = $db->fetchObject( $res ) ) {
- if ( $row->Field == $field ) {
- $found = true;
- break;
- }
- }
- return $found;
-}
-
-# Obsolete Database::tableExists()
-function table_exists( $db ) {
- global $wgDBname;
- $res = mysql_list_tables( $wgDBname );
- if( !$res ) {
- echo "** " . mysql_error() . "\n";
- return false;
- }
- for( $i = mysql_num_rows( $res ) - 1; $i--; $i > 0 ) {
- if( mysql_tablename( $res, $i ) == $db ) return true;
- }
- return false;
-}
-
-# Obsolete, use Database:fieldInfo()
-function field_info( $table, $field ) {
- $res = mysql_query( "SELECT * FROM $table LIMIT 1" );
- $n = mysql_num_fields( $res );
- for( $i = 0; $i < $n; $i++ ) {
- $meta = mysql_fetch_field( $res, $i );
- if( $field == $meta->name ) {
- return $meta;
- }
- }
- return false;
+/**
+ * Get the value of session.save_path
+ *
+ * Per http://www.php.net/manual/en/ref.session.php#ini.session.save-path,
+ * this might have some additional preceding parts which need to be
+ * ditched
+ *
+ * @return string
+ */
+function mw_get_session_save_path() {
+ $path = ini_get( 'session.save_path' );
+ $path = substr( $path, strrpos( $path, ';' ) );
+ return $path;
}
-?>
+/**
+ * Is dl() available to us?
+ *
+ * According to http://www.php.net/manual/en/function.dl.php, dl()
+ * is *not* available when `enable_dl` is off, or under `safe_mode`
+ *
+ * @return bool
+ */
+function mw_have_dl() {
+ return function_exists( 'dl' )
+ && is_callable( 'dl' )
+ && wfIniGetBool( 'enable_dl' )
+ && !wfIniGetBool( 'safe_mode' );
+}
\ No newline at end of file
dépôts / lhc / web / wiklou.git / blobdiff