includes/installer/SqliteInstaller.php

   1 <?php
   2
   3 class SqliteInstaller extends InstallerDBType {
   4         protected $globalNames = array(
   5                 'wgDBname',
   6                 'wgSQLiteDataDir',
   7         );
   8
   9         function getName() {
  10                 return 'sqlite';
  11         }
  12
  13         function isCompiled() {
  14                 return $this->checkExtension( 'pdo_sqlite' );
  15         }
  16
  17         function getGlobalDefaults() {
  18                 if ( isset( $_SERVER['DOCUMENT_ROOT'] ) ) {
  19                         $path = str_replace(
  20                                 array( '/', '\\' ),
  21                                 DIRECTORY_SEPARATOR,
  22                                 dirname( $_SERVER['DOCUMENT_ROOT'] ) . '/data'
  23                         );
  24                         return array( 'wgSQLiteDataDir' => $path );
  25                 } else {
  26                         return array();
  27                 }
  28         }
  29
  30         function getConnectForm() {
  31                 return $this->getTextBox( 'wgSQLiteDataDir', 'config-sqlite-dir' ) .
  32                         $this->parent->getHelpBox( 'config-sqlite-dir-help' ) .
  33                         $this->getTextBox( 'wgDBname', 'config-db-name' ) .
  34                         $this->parent->getHelpBox( 'config-sqlite-name-help' );
  35         }
  36
  37         function submitConnectForm() {
  38                 global $wgSQLiteDataDir;
  39                 $this->setVarsFromRequest( array( 'wgSQLiteDataDir', 'wgDBname' ) );
  40
  41                 $dir = realpath( $this->getVar( 'wgSQLiteDataDir' ) );
  42                 if ( !$dir ) {
  43                         // realpath() sometimes fails, especially on Windows
  44                         $dir = $this->getVar( 'wgSQLiteDataDir' );
  45                 }
  46                 $this->setVar( 'wgSQLiteDataDir', $dir );
  47                 return self::dataDirOKmaybeCreate( $dir, true /* create? */ );
  48         }
  49
  50         private static function dataDirOKmaybeCreate( $dir, $create = false ) {
  51                 if ( !is_dir( $dir ) ) {
  52                         if ( !is_writable( dirname( $dir ) ) ) {
  53                                 $webserverGroup = Installer::maybeGetWebserverPrimaryGroup();
  54                                 if ( $webserverGroup !== null ) {
  55                                         return Status::newFatal( 'config-sqlite-parent-unwritable-group', $dir, dirname( $dir ), basename( $dir ), $webserverGroup );
  56                                 } else {
  57                                         return Status::newFatal( 'config-sqlite-parent-unwritable-nogroup', $dir, dirname( $dir ), basename( $dir ) );
  58                                 }
  59                         }
  60
  61                         # Called early on in the installer, later we just want to sanity check
  62                         # if it's still writable
  63                         if ( $create ) {
  64                                 wfSuppressWarnings();
  65                                 $ok = wfMkdirParents( $dir, 0700 );
  66                                 wfRestoreWarnings();
  67                                 if ( !$ok ) {
  68                                         return Status::newFatal( 'config-sqlite-mkdir-error', $dir );
  69                                 }
  70                                 # Put a .htaccess file in in case the user didn't take our advice
  71                                 file_put_contents( "$dir/.htaccess", "Deny from all\n" );
  72                         }
  73                 }
  74                 if ( !is_writable( $dir ) ) {
  75                         return Status::newFatal( 'config-sqlite-dir-unwritable', $dir );
  76                 }
  77
  78                 # We haven't blown up yet, fall through
  79                 return Status::newGood();
  80         }
  81
  82         function getConnection() {
  83                 global $wgSQLiteDataDir;
  84
  85                 $status = Status::newGood();
  86                 $dir = $this->getVar( 'wgSQLiteDataDir' );
  87                 $dbName = $this->getVar( 'wgDBname' );
  88
  89                 try {
  90                         # FIXME: need more sensible constructor parameters, e.g. single associative array
  91                         # Setting globals kind of sucks
  92                         $wgSQLiteDataDir = $dir;
  93                         $this->db = new DatabaseSqlite( false, false, false, $dbName );
  94                         $status->value = $this->db;
  95                 } catch ( DBConnectionError $e ) {
  96                         $status->fatal( 'config-sqlite-connection-error', $e->getMessage() );
  97                 }
  98                 return $status;
  99         }
 100
 101         function needsUpgrade() {
 102                 $dir = $this->getVar( 'wgSQLiteDataDir' );
 103                 $dbName = $this->getVar( 'wgDBname' );
 104                 // Don't create the data file yet
 105                 if ( !file_exists( DatabaseSqlite::generateFileName( $dir, $dbName ) ) ) {
 106                         return false;
 107                 }
 108
 109                 // If the data file exists, look inside it
 110                 return parent::needsUpgrade();
 111         }
 112
 113         function getSettingsForm() {
 114                 return false;
 115         }
 116
 117         function submitSettingsForm() {
 118                 return Status::newGood();
 119         }
 120
 121         function setupDatabase() {
 122                 $dir = $this->getVar( 'wgSQLiteDataDir' );
 123
 124                 # Sanity check. We checked this before but maybe someone deleted the
 125                 # data dir between then and now
 126                 $dir_status = self::dataDirOKmaybeCreate( $dir, false /* create? */ );
 127                 if ( !$dir_status->isOK() ) {
 128                         return $dir_status;
 129                 }
 130
 131                 $db = $this->getVar( 'wgDBname' );
 132                 $file = DatabaseSqlite::generateFileName( $dir, $db );
 133                 if ( file_exists( $file ) ) {
 134                         if ( !is_writable( $file ) ) {
 135                                 return Status::newFatal( 'config-sqlite-readonly', $file );
 136                         }
 137                 } else {
 138                         if ( file_put_contents( $file, '' ) === false ) {
 139                                 return Status::newFatal( 'config-sqlite-cant-create-db', $file );
 140                         }
 141                 }
 142                 // nuke the unused settings for clarity
 143                 $this->setVar( 'wgDBserver', '' );
 144                 $this->setVar( 'wgDBuser', '' );
 145                 $this->setVar( 'wgDBpassword', '' );
 146                 return $this->getConnection();
 147         }
 148
 149         function createTables() {
 150                 global $IP;
 151                 $status = $this->getConnection();
 152                 if ( !$status->isOK() ) {
 153                         return $status;
 154                 }
 155                 // Process common MySQL/SQLite table definitions
 156                 $err = $this->db->sourceFile( "$IP/maintenance/tables.sql" );
 157                 if ( $err !== true ) {
 158                         //@todo or...?
 159                         $this->db->reportQueryError( $err, 0, $sql, __FUNCTION__ );
 160                 }
 161                 //@todo set up searchindex
 162                 // Create default interwikis
 163                 return Status::newGood();
 164         }
 165
 166         function doUpgrade() {
 167                 global $wgDatabase;
 168                 LBFactory::enableBackend();
 169                 $wgDatabase = wfGetDB( DB_MASTER );
 170                 ob_start( array( 'SqliteInstaller', 'outputHandler' ) );
 171                 do_all_updates( false, true );
 172                 ob_end_flush();
 173                 return true;
 174         }
 175
 176         static function outputHandler( $string ) {
 177                 return htmlspecialchars( $string );
 178         }
 179
 180         function getLocalSettings() {
 181                 $dir = LocalSettingsGenerator::escapePhpString( $this->getVar( 'wgSQLiteDataDir' ) );
 182                 return
 183 "# SQLite-specific settings
 184 \$wgSQLiteDataDir    = \"{$dir}\";";
 185         }
 186 }