install-utils.inc

   1 <?php
   2
   3 function install_version_checks() {
   4         # We dare not turn output buffer _off_ since this will break completely
   5         # if PHP is globally configured to run through a gzip filter.
   6         @ob_implicit_flush( true );
   7
   8         if( !function_exists( 'version_compare' ) ) {
   9                 # version_compare was introduced in 4.1.0
  10                 echo "Your PHP version is much too old; 4.0.x will _not_ work. 4.3.2 or higher is required. ABORTING.\n";
  11                 die( -1 );
  12         }
  13         if( version_compare( phpversion(), '4.3.2' ) < 0 ) {
  14                 echo "PHP 4.3.2 or higher is required. ABORTING.\n";
  15                 die( -1 );
  16         }
  17
  18         $gotdatabase = 0;
  19         ## XXX We should quiet the warnings thrown here
  20         if (extension_loaded('mysql') or @dl('mysql.so')) {
  21                 $gotdatabase = 'mysql';
  22         }
  23         else if (extension_loaded('pgsql') or @dl('pgsql.so')) {
  24                 $gotdatabase = 'pg';
  25         }
  26         if (!$gotdatabase) {
  27                 global $wgCommandLineMode;
  28
  29                 $error ="Could not load the MySQL or the PostgreSQL driver! Please compile ".
  30                           "php with either --with-mysql or --with-pgsql, or install the mysql.so or pg.so module.<br/>\n".
  31                           " If the database extension is installed (eg php-mysql), make sure it is enabled in your php.ini.\n";
  32                 if( $wgCommandLineMode ) { print $error; }
  33                 else { outputFooter($error); }
  34                 exit;
  35         }
  36
  37         global $wgCommandLineMode;
  38         $wgCommandLineMode = true;
  39         umask( 000 );
  40         set_time_limit( 0 );
  41 }
  42
  43 function copyfile( $sdir, $name, $ddir, $perms = 0664 ) {
  44         copyfileto( $sdir, $name, $ddir, $name, $perms );
  45 }
  46
  47 function copyfileto( $sdir, $sname, $ddir, $dname, $perms = 0664 ) {
  48         global $wgInstallOwner, $wgInstallGroup;
  49
  50         $d = "{$ddir}/{$dname}";
  51         if ( copy( "{$sdir}/{$sname}", $d ) ) {
  52                 if ( isset( $wgInstallOwner ) ) { chown( $d, $wgInstallOwner ); }
  53                 if ( isset( $wgInstallGroup ) ) { chgrp( $d, $wgInstallGroup ); }
  54                 chmod( $d, $perms );
  55                 # print "Copied \"{$sname}\" to \"{$d}\".\n";
  56         } else {
  57                 print "Failed to copy file \"{$sname}\" to \"{$ddir}/{$dname}\".\n";
  58                 exit();
  59         }
  60 }
  61
  62 function copydirectory( $source, $dest ) {
  63         $handle = opendir( $source );
  64         while ( false !== ( $f = readdir( $handle ) ) ) {
  65                 $fullname = "$source/$f";
  66                 if ( $f{0} != '.' && is_file( $fullname ) ) {
  67                         copyfile( $source, $f, $dest );
  68                 }
  69         }
  70 }
  71
  72 function readconsole( $prompt = '' ) {
  73         static $isatty = null, $fp = null;
  74         if ( is_null( $fp ) ) {
  75                 $fp = fopen( 'php://stdin', 'r' );
  76         }
  77         if ( is_null( $isatty ) ) {
  78                 if ( !function_exists( 'posix_isatty' ) || posix_isatty( $fp ) ) {
  79                         $isatty = true;
  80                 } else {
  81                         $isatty = false;
  82                 }
  83         }
  84
  85         if ( $isatty && function_exists( 'readline' ) ) {
  86                 return readline( $prompt );
  87         } else {
  88                 if ( $isatty ) {
  89                         print $prompt;
  90                 }
  91                 if ( feof( $fp ) ) {
  92                         return false;
  93                 }
  94                 $st = fgets($fp, 1024);
  95                 if ($st === false) return false;
  96                 $resp = trim( $st );
  97                 return $resp;
  98         }
  99 }
 100
 101 #
 102 # Read and execute SQL commands from a file
 103 #
 104 function dbsource( $fname, $db = false ) {
 105         if ( !$db ) {
 106                 // Try $wgDatabase, which is used in the install and update scripts
 107                 global $wgDatabase;
 108                 if ( isset( $wgDatabase ) ) {
 109                         $db =& $wgDatabase;
 110                 } else {
 111                         // No? Well, we must be outside of those scripts, so use the standard method
 112                         $db =& wfGetDB( DB_MASTER );
 113                 }
 114         }
 115         $error = $db->sourceFile( $fname );
 116         if ( $error !== true ) {
 117                 print $error;
 118                 exit(1);
 119         }
 120 }
 121
 122 # Obsolete, use Database::fieldExists()
 123 function field_exists( $table, $field ) {
 124         $fname = 'Update script: field_exists';
 125         $db =& wfGetDB( DB_SLAVE );
 126         $res = $db->query( "DESCRIBE $table", $fname );
 127         $found = false;
 128
 129         while ( $row = $db->fetchObject( $res ) ) {
 130                 if ( $row->Field == $field ) {
 131                         $found = true;
 132                         break;
 133                 }
 134         }
 135         return $found;
 136 }
 137
 138 # Obsolete Database::tableExists()
 139 function table_exists( $db ) {
 140         global $wgDBname;
 141         $res = mysql_list_tables( $wgDBname );
 142         if( !$res ) {
 143                 echo "** " . mysql_error() . "\n";
 144                 return false;
 145         }
 146         for( $i = mysql_num_rows( $res ) - 1; $i--; $i > 0 ) {
 147                 if( mysql_tablename( $res, $i ) == $db ) return true;
 148         }
 149         return false;
 150 }
 151
 152 # Obsolete, use Database:fieldInfo()
 153 function field_info( $table, $field ) {
 154         $res = mysql_query( "SELECT * FROM $table LIMIT 1" );
 155         $n = mysql_num_fields( $res );
 156         for( $i = 0; $i < $n; $i++ ) {
 157                 $meta = mysql_fetch_field( $res, $i );
 158                 if( $field == $meta->name ) {
 159                         return $meta;
 160                 }
 161         }
 162         return false;
 163 }
 164
 165 /**
 166  * Used to end the HTML stream when we die out
 167  */
 168 function outputFooter( $text ) {
 169 print $text;
 170 print <<<END
 171 </div></div></div>
 172
 173
 174 <div id="column-one">
 175     <div class="portlet" id="p-logo">
 176       <a style="background-image: url(../skins/common/images/mediawiki.png);"
 177         href="http://www.mediawiki.org/"
 178         title="Main Page"></a>
 179     </div>
 180     <script type="text/javascript"> if (window.isMSIE55) fixalpha(); </script>
 181     <div class='portlet'><div class='pBody'>
 182         <ul>
 183             <li><strong><a href="http://www.mediawiki.org/">MediaWiki home</a></strong></li>
 184             <li><a href="../README">Readme</a></li>
 185             <li><a href="../RELEASE-NOTES">Release notes</a></li>
 186             <li><a href="../docs/">Documentation</a></li>
 187             <li><a href="http://meta.wikipedia.org/wiki/MediaWiki_User's_Guide">User's Guide</a></li>
 188             <li><a href="http://meta.wikimedia.org/wiki/MediaWiki_FAQ">FAQ</a></li>
 189         </ul>
 190         <p style="font-size:90%;margin-top:1em">MediaWiki is Copyright &copy; 2001-2006 by Magnus Manske, Brion Vibber, Lee Daniel Crocker, Tim Starling, Erik M&ouml;ller, Gabriel Wicke and others.</p>
 191     </div></div>
 192 </div>
 193
 194 </div>
 195
 196 </body>
 197 </html>
 198
 199 END;
 200
 201 }
 202 ?>