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( 'posix_isatty' ) && posix_isatty( STDIN ) ) {
  61                 $isatty = true;
  62         } else {
  63                 $isatty = false;
  64         }
  65
  66         if ( $isatty && function_exists( 'readline' ) ) {
  67                 return readline( $prompt );
  68         } else {
  69                 if ( $isatty ) {
  70                         print $prompt;
  71                 }
  72                 $fp = fopen( 'php://stdin', 'r' );
  73                 $st = fgets($fp, 1024);
  74                 if ($st === false) return false;
  75                 $resp = trim( $st );
  76                 fclose( $fp );
  77                 return $resp;
  78         }
  79 }
  80
  81 function replacevars( $ins ) {
  82         $varnames = array(
  83                 'wgDBserver', 'wgDBname', 'wgDBintlname', 'wgDBuser',
  84                 'wgDBpassword', 'wgDBsqluser', 'wgDBsqlpassword',
  85                 'wgDBadminuser', 'wgDBadminpassword', 'wgDBprefix'
  86         );
  87
  88         foreach ( $varnames as $var ) {
  89                 if( isset( $GLOBALS[$var] ) ) {
  90                         $val = addslashes( $GLOBALS[$var] );
  91                         $ins = str_replace( '{$' . $var . '}', $val, $ins );
  92                         $ins = str_replace( '/*$' . $var . '*/`', '`' . $val, $ins );
  93                         $ins = str_replace( '/*$' . $var . '*/', $val, $ins );
  94                 }
  95         }
  96         return $ins;
  97 }
  98
  99 #
 100 # Read and execute SQL commands from a file
 101 #
 102 function dbsource( $fname, $database = false ) {
 103         $fp = fopen( $fname, 'r' );
 104         if ( false === $fp ) {
 105                 print "Could not open \"{$fname}\".\n";
 106                 exit();
 107         }
 108
 109         $cmd = "";
 110         $done = false;
 111
 112         while ( ! feof( $fp ) ) {
 113                 $line = trim( fgets( $fp, 1024 ) );
 114                 $sl = strlen( $line ) - 1;
 115
 116                 if ( $sl < 0 ) { continue; }
 117                 if ( '-' == $line{0} && '-' == $line{1} ) { continue; }
 118
 119                 if ( ';' == $line{$sl} && ($sl < 2 || ';' != $line{$sl - 1})) {
 120                         $done = true;
 121                         $line = substr( $line, 0, $sl );
 122                 }
 123
 124                 if ( '' != $cmd ) { $cmd .= ' '; }
 125                 $cmd .= "$line\n";
 126
 127                 if ( $done ) {
 128                         $cmd = str_replace(';;', ";", $cmd);
 129                         $cmd = replacevars( $cmd );
 130                         if( $database )
 131                                 $res = $database->query( $cmd, 'dbsource', true );
 132                         else
 133                                 $res = mysql_query( $cmd );
 134
 135                         if ( false === $res ) {
 136                                 $err = mysql_error();
 137                                 print "Query \"{$cmd}\" failed with error code \"$err\".\n";
 138                                 exit();
 139                         }
 140
 141                         $cmd = '';
 142                         $done = false;
 143                 }
 144         }
 145         fclose( $fp );
 146 }
 147
 148 # Obsolete, use Database::fieldExists()
 149 function field_exists( $table, $field ) {
 150         $fname = 'Update script: field_exists';
 151         $db =& wfGetDB( DB_SLAVE );
 152         $res = $db->query( "DESCRIBE $table", $fname );
 153         $found = false;
 154
 155         while ( $row = $db->fetchObject( $res ) ) {
 156                 if ( $row->Field == $field ) {
 157                         $found = true;
 158                         break;
 159                 }
 160         }
 161         return $found;
 162 }
 163
 164 # Obsolete Database::tableExists()
 165 function table_exists( $db ) {
 166         global $wgDBname;
 167         $res = mysql_list_tables( $wgDBname );
 168         if( !$res ) {
 169                 echo "** " . mysql_error() . "\n";
 170                 return false;
 171         }
 172         for( $i = mysql_num_rows( $res ) - 1; $i--; $i > 0 ) {
 173                 if( mysql_tablename( $res, $i ) == $db ) return true;
 174         }
 175         return false;
 176 }
 177
 178 # Obsolete, use Database:fieldInfo()
 179 function field_info( $table, $field ) {
 180         $res = mysql_query( "SELECT * FROM $table LIMIT 1" );
 181         $n = mysql_num_fields( $res );
 182         for( $i = 0; $i < $n; $i++ ) {
 183                 $meta = mysql_fetch_field( $res, $i );
 184                 if( $field == $meta->name ) {
 185                         return $meta;
 186                 }
 187         }
 188         return false;
 189 }
 190
 191 ?>