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 #
  91 # Read and execute SQL commands from a file
  92 #
  93 function dbsource( $fname, $db = false ) {
  94         if ( !$db ) {
  95                 // Try $wgDatabase, which is used in the install and update scripts
  96                 global $wgDatabase;
  97                 if ( isset( $wgDatabase ) ) {
  98                         $db =& $wgDatabase;
  99                 } else {
 100                         // No? Well, we must be outside of those scripts, so use the standard method
 101                         $db =& wfGetDB( DB_MASTER );
 102                 }
 103         }
 104         $error = $db->sourceFile( $fname );
 105         if ( $error !== true ) {
 106                 print $error;
 107                 exit(1);
 108         }
 109 }
 110
 111 # Obsolete, use Database::fieldExists()
 112 function field_exists( $table, $field ) {
 113         $fname = 'Update script: field_exists';
 114         $db =& wfGetDB( DB_SLAVE );
 115         $res = $db->query( "DESCRIBE $table", $fname );
 116         $found = false;
 117
 118         while ( $row = $db->fetchObject( $res ) ) {
 119                 if ( $row->Field == $field ) {
 120                         $found = true;
 121                         break;
 122                 }
 123         }
 124         return $found;
 125 }
 126
 127 # Obsolete Database::tableExists()
 128 function table_exists( $db ) {
 129         global $wgDBname;
 130         $res = mysql_list_tables( $wgDBname );
 131         if( !$res ) {
 132                 echo "** " . mysql_error() . "\n";
 133                 return false;
 134         }
 135         for( $i = mysql_num_rows( $res ) - 1; $i--; $i > 0 ) {
 136                 if( mysql_tablename( $res, $i ) == $db ) return true;
 137         }
 138         return false;
 139 }
 140
 141 # Obsolete, use Database:fieldInfo()
 142 function field_info( $table, $field ) {
 143         $res = mysql_query( "SELECT * FROM $table LIMIT 1" );
 144         $n = mysql_num_fields( $res );
 145         for( $i = 0; $i < $n; $i++ ) {
 146                 $meta = mysql_fetch_field( $res, $i );
 147                 if( $field == $meta->name ) {
 148                         return $meta;
 149                 }
 150         }
 151         return false;
 152 }
 153
 154 ?>