install-utils.inc

   1 <?php
   2
   3 function install_version_checks() {
   4         # Turn off output buffering if it's on
   5         @ob_end_flush();
   6
   7         if( !function_exists( "version_compare" ) ) {
   8                 # version_compare was introduced in 4.1.0
   9                 die( "Your PHP version is much too old; 4.0.x will _not_ work. 4.3.2 or higher is recommended. ABORTING.\n" );
  10         }
  11         if( version_compare( phpversion(), "4.3.2" ) < 0 ) {
  12                 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";
  13         }
  14
  15         if (!extension_loaded('mysql')) {
  16                 if (!dl('mysql.so')) {
  17                         print "Could not load MySQL driver! Please compile ".
  18                                   "php --with-mysql or install the mysql.so module.\n";
  19                 exit;
  20                 }
  21         }
  22
  23         global $wgCommandLineMode;
  24         $wgCommandLineMode = true;
  25         umask( 000 );
  26         set_time_limit( 0 );
  27 }
  28
  29 function copyfile( $sdir, $name, $ddir, $perms = 0664 ) {
  30         copyfileto( $sdir, $name, $ddir, $name, $perms );
  31 }
  32
  33 function copyfileto( $sdir, $sname, $ddir, $dname, $perms = 0664 ) {
  34         global $wgInstallOwner, $wgInstallGroup;
  35
  36         $d = "{$ddir}/{$dname}";
  37         if ( copy( "{$sdir}/{$sname}", $d ) ) {
  38                 if ( isset( $wgInstallOwner ) ) { chown( $d, $wgInstallOwner ); }
  39                 if ( isset( $wgInstallGroup ) ) { chgrp( $d, $wgInstallGroup ); }
  40                 chmod( $d, $perms );
  41                 # print "Copied \"{$sname}\" to \"{$d}\".\n";
  42         } else {
  43                 print "Failed to copy file \"{$sname}\" to \"{$ddir}/{$dname}\".\n";
  44                 exit();
  45         }
  46 }
  47
  48 function copydirectory( $source, $dest ) {
  49         $handle = opendir( $source );
  50         while ( false !== ( $f = readdir( $handle ) ) ) {
  51                 $fullname = "$source/$f";
  52                 if ( $f{0} !="." && is_file( $fullname ) ) {
  53                         copyfile( $source, $f, $dest );
  54                 }
  55         }
  56 }
  57
  58 function readconsole() {
  59         $fp = fopen( "php://stdin", "r" );
  60         $resp = trim( fgets( $fp, 1024 ) );
  61         fclose( $fp );
  62         return $resp;
  63 }
  64
  65
  66 function replacevars( $ins ) {
  67         $varnames = array(
  68                 "wgDBserver", "wgDBname", "wgDBintlname", "wgDBuser",
  69                 "wgDBpassword", "wgDBsqluser", "wgDBsqlpassword",
  70                 "wgDBadminuser", "wgDBadminpassword"
  71         );
  72
  73         foreach ( $varnames as $var ) {
  74                 global $$var;
  75                 $ins = str_replace( '{$' . $var . '}', $$var, $ins );
  76         }
  77         return $ins;
  78 }
  79
  80 #
  81 # Read and execute SQL commands from a file
  82 #
  83 function dbsource( $fname, $database = false ) {
  84         $fp = fopen( $fname, "r" );
  85         if ( false === $fp ) {
  86                 print "Could not open \"{$fname}\".\n";
  87                 exit();
  88         }
  89
  90         $cmd = "";
  91         $done = false;
  92
  93         while ( ! feof( $fp ) ) {
  94                 $line = trim( fgets( $fp, 1024 ) );
  95                 $sl = strlen( $line ) - 1;
  96
  97                 if ( $sl < 0 ) { continue; }
  98                 if ( "-" == $line{0} && "-" == $line{1} ) { continue; }
  99
 100                 if ( ";" == $line{$sl} ) {
 101                         $done = true;
 102                         $line = substr( $line, 0, $sl );
 103                 }
 104
 105                 if ( "" != $cmd ) { $cmd .= " "; }
 106                 $cmd .= $line;
 107
 108                 if ( $done ) {
 109                         $cmd = replacevars( $cmd );
 110                         if( $database )
 111                                 $res = $database->query( $cmd );
 112                         else
 113                                 $res = mysql_query( $cmd );
 114
 115                         if ( false === $res ) {
 116                                 print "Query \"{$cmd}\" failed.\n";
 117                                 exit();
 118                         }
 119
 120                         $cmd = "";
 121                         $done = false;
 122                 }
 123         }
 124         fclose( $fp );
 125 }
 126
 127 # Obsolete, use Database::fieldExists()
 128 function field_exists( $table, $field ) {
 129         $fname = "Update script: field_exists";
 130         $res = wfQuery( "DESCRIBE $table", $fname );
 131         $found = false;
 132
 133         while ( $row = wfFetchObject( $res ) ) {
 134                 if ( $row->Field == $field ) {
 135                         $found = true;
 136                         break;
 137                 }
 138         }
 139         return $found;
 140 }
 141
 142 # Obsolete Database::tableExists()
 143 function table_exists( $db ) {
 144         global $wgDBname;
 145         $res = mysql_list_tables( $wgDBname );
 146         if( !$res ) {
 147                 echo "** " . mysql_error() . "\n";
 148                 return false;
 149         }
 150         for( $i = mysql_num_rows( $res ) - 1; $i--; $i > 0 ) {
 151                 if( mysql_tablename( $res, $i ) == $db ) return true;
 152         }
 153         return false;
 154 }
 155
 156 # Obsolete, use Database:fieldInfo()
 157 function field_info( $table, $field ) {
 158         $res = mysql_query( "SELECT * FROM $table LIMIT 1" );
 159         $n = mysql_num_fields( $res );
 160         for( $i = 0; $i < $n; $i++ ) {
 161                 $meta = mysql_fetch_field( $res, $i );
 162                 if( $field == $meta->name ) {
 163                         return $meta;
 164                 }
 165         }
 166         return false;
 167 }
 168
 169 ?>