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         if (!extension_loaded('mysql')) {
  19                 if (!dl('mysql.so')) {
  20                         print 'Could not load MySQL driver! Please compile '.
  21                                   "php --with-mysql or install the mysql.so module.\n";
  22                 exit;
  23                 }
  24         }
  25
  26         global $wgCommandLineMode;
  27         $wgCommandLineMode = true;
  28         umask( 000 );
  29         set_time_limit( 0 );
  30 }
  31
  32 function copyfile( $sdir, $name, $ddir, $perms = 0664 ) {
  33         copyfileto( $sdir, $name, $ddir, $name, $perms );
  34 }
  35
  36 function copyfileto( $sdir, $sname, $ddir, $dname, $perms = 0664 ) {
  37         global $wgInstallOwner, $wgInstallGroup;
  38
  39         $d = "{$ddir}/{$dname}";
  40         if ( copy( "{$sdir}/{$sname}", $d ) ) {
  41                 if ( isset( $wgInstallOwner ) ) { chown( $d, $wgInstallOwner ); }
  42                 if ( isset( $wgInstallGroup ) ) { chgrp( $d, $wgInstallGroup ); }
  43                 chmod( $d, $perms );
  44                 # print "Copied \"{$sname}\" to \"{$d}\".\n";
  45         } else {
  46                 print "Failed to copy file \"{$sname}\" to \"{$ddir}/{$dname}\".\n";
  47                 exit();
  48         }
  49 }
  50
  51 function copydirectory( $source, $dest ) {
  52         $handle = opendir( $source );
  53         while ( false !== ( $f = readdir( $handle ) ) ) {
  54                 $fullname = "$source/$f";
  55                 if ( $f{0} != '.' && is_file( $fullname ) ) {
  56                         copyfile( $source, $f, $dest );
  57                 }
  58         }
  59 }
  60
  61 function readconsole( $prompt = '' ) {
  62         static $isatty = null, $fp = null;
  63         if ( is_null( $fp ) ) {
  64                 $fp = fopen( 'php://stdin', 'r' );
  65         }
  66         if ( is_null( $isatty ) ) {
  67                 if ( !function_exists( 'posix_isatty' ) || posix_isatty( $fp ) ) {
  68                         $isatty = true;
  69                 } else {
  70                         $isatty = false;
  71                 }
  72         }
  73
  74         if ( $isatty && function_exists( 'readline' ) ) {
  75                 return readline( $prompt );
  76         } else {
  77                 if ( $isatty ) {
  78                         print $prompt;
  79                 }
  80                 if ( feof( $fp ) ) {
  81                         return false;
  82                 }
  83                 $st = fgets($fp, 1024);
  84                 if ($st === false) return false;
  85                 $resp = trim( $st );
  86                 return $resp;
  87         }
  88 }
  89
  90 function replacevars( $ins ) {
  91         $varnames = array(
  92                 'wgDBserver', 'wgDBname', 'wgDBintlname', 'wgDBuser',
  93                 'wgDBpassword', 'wgDBsqluser', 'wgDBsqlpassword',
  94                 'wgDBadminuser', 'wgDBadminpassword', 'wgDBprefix'
  95         );
  96
  97         foreach ( $varnames as $var ) {
  98                 if( isset( $GLOBALS[$var] ) ) {
  99                         $val = addslashes( $GLOBALS[$var] );
 100                         $ins = str_replace( '{$' . $var . '}', $val, $ins );
 101                         $ins = str_replace( '/*$' . $var . '*/`', '`' . $val, $ins );
 102                         $ins = str_replace( '/*$' . $var . '*/', $val, $ins );
 103                 }
 104         }
 105         return $ins;
 106 }
 107
 108 #
 109 # Read and execute SQL commands from a file
 110 #
 111 function dbsource( $fname, $database = false ) {
 112         $fp = fopen( $fname, 'r' );
 113         if ( false === $fp ) {
 114                 print "Could not open \"{$fname}\".\n";
 115                 exit();
 116         }
 117
 118         $cmd = "";
 119         $done = false;
 120
 121         while ( ! feof( $fp ) ) {
 122                 $line = trim( fgets( $fp, 1024 ) );
 123                 $sl = strlen( $line ) - 1;
 124
 125                 if ( $sl < 0 ) { continue; }
 126                 if ( '-' == $line{0} && '-' == $line{1} ) { continue; }
 127
 128                 if ( ';' == $line{$sl} && ($sl < 2 || ';' != $line{$sl - 1})) {
 129                         $done = true;
 130                         $line = substr( $line, 0, $sl );
 131                 }
 132
 133                 if ( '' != $cmd ) { $cmd .= ' '; }
 134                 $cmd .= "$line\n";
 135
 136                 if ( $done ) {
 137                         $cmd = str_replace(';;', ";", $cmd);
 138                         $cmd = replacevars( $cmd );
 139                         if( $database )
 140                                 $res = $database->query( $cmd, 'dbsource', true );
 141                         else
 142                                 $res = mysql_query( $cmd );
 143
 144                         if ( false === $res ) {
 145                                 $err = mysql_error();
 146                                 print "Query \"{$cmd}\" failed with error code \"$err\".\n";
 147                                 exit();
 148                         }
 149
 150                         $cmd = '';
 151                         $done = false;
 152                 }
 153         }
 154         fclose( $fp );
 155 }
 156
 157 # Obsolete, use Database::fieldExists()
 158 function field_exists( $table, $field ) {
 159         $fname = 'Update script: field_exists';
 160         $db =& wfGetDB( DB_SLAVE );
 161         $res = $db->query( "DESCRIBE $table", $fname );
 162         $found = false;
 163
 164         while ( $row = $db->fetchObject( $res ) ) {
 165                 if ( $row->Field == $field ) {
 166                         $found = true;
 167                         break;
 168                 }
 169         }
 170         return $found;
 171 }
 172
 173 # Obsolete Database::tableExists()
 174 function table_exists( $db ) {
 175         global $wgDBname;
 176         $res = mysql_list_tables( $wgDBname );
 177         if( !$res ) {
 178                 echo "** " . mysql_error() . "\n";
 179                 return false;
 180         }
 181         for( $i = mysql_num_rows( $res ) - 1; $i--; $i > 0 ) {
 182                 if( mysql_tablename( $res, $i ) == $db ) return true;
 183         }
 184         return false;
 185 }
 186
 187 # Obsolete, use Database:fieldInfo()
 188 function field_info( $table, $field ) {
 189         $res = mysql_query( "SELECT * FROM $table LIMIT 1" );
 190         $n = mysql_num_fields( $res );
 191         for( $i = 0; $i < $n; $i++ ) {
 192                 $meta = mysql_fetch_field( $res, $i );
 193                 if( $field == $meta->name ) {
 194                         return $meta;
 195                 }
 196         }
 197         return false;
 198 }
 199
 200 ?>