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                 die( "Your PHP version is much too old; 4.0.x will _not_ work. 4.3.2 or higher is recommended. ABORTING.\n" );
  11         }
  12         if( version_compare( phpversion(), '4.3.2' ) < 0 ) {
  13                 echo "WARNING: PHP 4.3.2 or higher is recommended. Older versions from 4.1.x up may work but are not actively supported.\n\n";
  14         }
  15
  16         if (!extension_loaded('mysql')) {
  17                 if (!dl('mysql.so')) {
  18                         print 'Could not load MySQL driver! Please compile '.
  19                                   "php --with-mysql or install the mysql.so module.\n";
  20                 exit;
  21                 }
  22         }
  23
  24         global $wgCommandLineMode;
  25         $wgCommandLineMode = true;
  26         umask( 000 );
  27         set_time_limit( 0 );
  28 }
  29
  30 function copyfile( $sdir, $name, $ddir, $perms = 0664 ) {
  31         copyfileto( $sdir, $name, $ddir, $name, $perms );
  32 }
  33
  34 function copyfileto( $sdir, $sname, $ddir, $dname, $perms = 0664 ) {
  35         global $wgInstallOwner, $wgInstallGroup;
  36
  37         $d = "{$ddir}/{$dname}";
  38         if ( copy( "{$sdir}/{$sname}", $d ) ) {
  39                 if ( isset( $wgInstallOwner ) ) { chown( $d, $wgInstallOwner ); }
  40                 if ( isset( $wgInstallGroup ) ) { chgrp( $d, $wgInstallGroup ); }
  41                 chmod( $d, $perms );
  42                 # print "Copied \"{$sname}\" to \"{$d}\".\n";
  43         } else {
  44                 print "Failed to copy file \"{$sname}\" to \"{$ddir}/{$dname}\".\n";
  45                 exit();
  46         }
  47 }
  48
  49 function copydirectory( $source, $dest ) {
  50         $handle = opendir( $source );
  51         while ( false !== ( $f = readdir( $handle ) ) ) {
  52                 $fullname = "$source/$f";
  53                 if ( $f{0} != '.' && is_file( $fullname ) ) {
  54                         copyfile( $source, $f, $dest );
  55                 }
  56         }
  57 }
  58
  59 function readconsole( $prompt = '' ) {
  60         if ( function_exists( 'readline' ) ) {
  61                 return readline( $prompt );
  62         } else {
  63                 print $prompt;
  64                 $fp = fopen( 'php://stdin', 'r' );
  65                 $st = fgets($fp, 1024);
  66                 if ($st === false) return false;
  67                 $resp = trim( $st );
  68                 fclose( $fp );
  69                 return $resp;
  70         }
  71 }
  72
  73 function replacevars( $ins ) {
  74         $varnames = array(
  75                 'wgDBserver', 'wgDBname', 'wgDBintlname', 'wgDBuser',
  76                 'wgDBpassword', 'wgDBsqluser', 'wgDBsqlpassword',
  77                 'wgDBadminuser', 'wgDBadminpassword', 'wgDBprefix'
  78         );
  79
  80         foreach ( $varnames as $var ) {
  81                 if( isset( $GLOBALS[$var] ) ) {
  82                         $val = addslashes( $GLOBALS[$var] );
  83                         $ins = str_replace( '{$' . $var . '}', $val, $ins );
  84                         $ins = str_replace( '/*$' . $var . '*/`', '`' . $val, $ins );
  85                         $ins = str_replace( '/*$' . $var . '*/', $val, $ins );
  86                 }
  87         }
  88         return $ins;
  89 }
  90
  91 #
  92 # Read and execute SQL commands from a file
  93 #
  94 function dbsource( $fname, $database = false ) {
  95         $fp = fopen( $fname, 'r' );
  96         if ( false === $fp ) {
  97                 print "Could not open \"{$fname}\".\n";
  98                 exit();
  99         }
 100
 101         $cmd = "";
 102         $done = false;
 103
 104         while ( ! feof( $fp ) ) {
 105                 $line = trim( fgets( $fp, 1024 ) );
 106                 $sl = strlen( $line ) - 1;
 107
 108                 if ( $sl < 0 ) { continue; }
 109                 if ( '-' == $line{0} && '-' == $line{1} ) { continue; }
 110
 111                 if ( ';' == $line{$sl} ) {
 112                         $done = true;
 113                         $line = substr( $line, 0, $sl );
 114                 }
 115
 116                 if ( '' != $cmd ) { $cmd .= ' '; }
 117                 $cmd .= $line;
 118
 119                 if ( $done ) {
 120                         $cmd = replacevars( $cmd );
 121                         if( $database )
 122                                 $res = $database->query( $cmd );
 123                         else
 124                                 $res = mysql_query( $cmd );
 125
 126                         if ( false === $res ) {
 127                                 $err = mysql_error();
 128                                 print "Query \"{$cmd}\" failed with error code \"$err\".\n";
 129                                 exit();
 130                         }
 131
 132                         $cmd = '';
 133                         $done = false;
 134                 }
 135         }
 136         fclose( $fp );
 137 }
 138
 139 # Obsolete, use Database::fieldExists()
 140 function field_exists( $table, $field ) {
 141         $fname = 'Update script: field_exists';
 142         $db =& wfGetDB( DB_SLAVE );
 143         $res = $db->query( "DESCRIBE $table", $fname );
 144         $found = false;
 145
 146         while ( $row = $db->fetchObject( $res ) ) {
 147                 if ( $row->Field == $field ) {
 148                         $found = true;
 149                         break;
 150                 }
 151         }
 152         return $found;
 153 }
 154
 155 # Obsolete Database::tableExists()
 156 function table_exists( $db ) {
 157         global $wgDBname;
 158         $res = mysql_list_tables( $wgDBname );
 159         if( !$res ) {
 160                 echo "** " . mysql_error() . "\n";
 161                 return false;
 162         }
 163         for( $i = mysql_num_rows( $res ) - 1; $i--; $i > 0 ) {
 164                 if( mysql_tablename( $res, $i ) == $db ) return true;
 165         }
 166         return false;
 167 }
 168
 169 # Obsolete, use Database:fieldInfo()
 170 function field_info( $table, $field ) {
 171         $res = mysql_query( "SELECT * FROM $table LIMIT 1" );
 172         $n = mysql_num_fields( $res );
 173         for( $i = 0; $i < $n; $i++ ) {
 174                 $meta = mysql_fetch_field( $res, $i );
 175                 if( $field == $meta->name ) {
 176                         return $meta;
 177                 }
 178         }
 179         return false;
 180 }
 181
 182 ?>