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 required. ABORTING.\n" );
  11         }
  12         if( version_compare( phpversion(), '4.3.2' ) < 0 ) {
  13                 die( "PHP 4.3.2 or higher is required. ABORTING.\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         static $isatty = null, $fp = null;
  61         if ( is_null( $fp ) ) {
  62                 $fp = fopen( 'php://stdin', 'r' );
  63         }
  64         if ( is_null( $isatty ) ) {
  65                 if ( !function_exists( 'posix_isatty' ) || posix_isatty( $fp ) ) {
  66                         $isatty = true;
  67                 } else {
  68                         $isatty = false;
  69                 }
  70         }
  71
  72         if ( $isatty && function_exists( 'readline' ) ) {
  73                 return readline( $prompt );
  74         } else {
  75                 if ( $isatty ) {
  76                         print $prompt;
  77                 }
  78                 if ( feof( $fp ) ) {
  79                         return false;
  80                 }
  81                 $st = fgets($fp, 1024);
  82                 if ($st === false) return false;
  83                 $resp = trim( $st );
  84                 return $resp;
  85         }
  86 }
  87
  88 function replacevars( $ins ) {
  89         $varnames = array(
  90                 'wgDBserver', 'wgDBname', 'wgDBintlname', 'wgDBuser',
  91                 'wgDBpassword', 'wgDBsqluser', 'wgDBsqlpassword',
  92                 'wgDBadminuser', 'wgDBadminpassword', 'wgDBprefix'
  93         );
  94
  95         foreach ( $varnames as $var ) {
  96                 if( isset( $GLOBALS[$var] ) ) {
  97                         $val = addslashes( $GLOBALS[$var] );
  98                         $ins = str_replace( '{$' . $var . '}', $val, $ins );
  99                         $ins = str_replace( '/*$' . $var . '*/`', '`' . $val, $ins );
 100                         $ins = str_replace( '/*$' . $var . '*/', $val, $ins );
 101                 }
 102         }
 103         return $ins;
 104 }
 105
 106 #
 107 # Read and execute SQL commands from a file
 108 #
 109 function dbsource( $fname, $database = false ) {
 110         $fp = fopen( $fname, 'r' );
 111         if ( false === $fp ) {
 112                 print "Could not open \"{$fname}\".\n";
 113                 exit();
 114         }
 115
 116         $cmd = "";
 117         $done = false;
 118
 119         while ( ! feof( $fp ) ) {
 120                 $line = trim( fgets( $fp, 1024 ) );
 121                 $sl = strlen( $line ) - 1;
 122
 123                 if ( $sl < 0 ) { continue; }
 124                 if ( '-' == $line{0} && '-' == $line{1} ) { continue; }
 125
 126                 if ( ';' == $line{$sl} && ($sl < 2 || ';' != $line{$sl - 1})) {
 127                         $done = true;
 128                         $line = substr( $line, 0, $sl );
 129                 }
 130
 131                 if ( '' != $cmd ) { $cmd .= ' '; }
 132                 $cmd .= "$line\n";
 133
 134                 if ( $done ) {
 135                         $cmd = str_replace(';;', ";", $cmd);
 136                         $cmd = replacevars( $cmd );
 137                         if( $database )
 138                                 $res = $database->query( $cmd, 'dbsource', true );
 139                         else
 140                                 $res = mysql_query( $cmd );
 141
 142                         if ( false === $res ) {
 143                                 $err = mysql_error();
 144                                 print "Query \"{$cmd}\" failed with error code \"$err\".\n";
 145                                 exit();
 146                         }
 147
 148                         $cmd = '';
 149                         $done = false;
 150                 }
 151         }
 152         fclose( $fp );
 153 }
 154
 155 # Obsolete, use Database::fieldExists()
 156 function field_exists( $table, $field ) {
 157         $fname = 'Update script: field_exists';
 158         $db =& wfGetDB( DB_SLAVE );
 159         $res = $db->query( "DESCRIBE $table", $fname );
 160         $found = false;
 161
 162         while ( $row = $db->fetchObject( $res ) ) {
 163                 if ( $row->Field == $field ) {
 164                         $found = true;
 165                         break;
 166                 }
 167         }
 168         return $found;
 169 }
 170
 171 # Obsolete Database::tableExists()
 172 function table_exists( $db ) {
 173         global $wgDBname;
 174         $res = mysql_list_tables( $wgDBname );
 175         if( !$res ) {
 176                 echo "** " . mysql_error() . "\n";
 177                 return false;
 178         }
 179         for( $i = mysql_num_rows( $res ) - 1; $i--; $i > 0 ) {
 180                 if( mysql_tablename( $res, $i ) == $db ) return true;
 181         }
 182         return false;
 183 }
 184
 185 # Obsolete, use Database:fieldInfo()
 186 function field_info( $table, $field ) {
 187         $res = mysql_query( "SELECT * FROM $table LIMIT 1" );
 188         $n = mysql_num_fields( $res );
 189         for( $i = 0; $i < $n; $i++ ) {
 190                 $meta = mysql_fetch_field( $res, $i );
 191                 if( $field == $meta->name ) {
 192                         return $meta;
 193                 }
 194         }
 195         return false;
 196 }
 197
 198 ?>