/**
* DBMS-specific installation helper.
*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ * http://www.gnu.org/copyleft/gpl.html
+ *
* @file
* @ingroup Deployment
*/
/**
* Base class for DBMS-specific installation helper classes.
- *
+ *
* @ingroup Deployment
* @since 1.17
*/
abstract class DatabaseInstaller {
-
+
/**
* The Installer object.
- *
+ *
* TODO: naming this parent is confusing, 'installer' would be clearer.
- *
- * @var Installer
+ *
+ * @var WebInstaller
*/
public $parent;
/**
* The database connection.
- *
+ *
* @var DatabaseBase
*/
- public $db;
+ public $db = null;
/**
* Internal variables for installation.
- *
+ *
* @var array
*/
protected $internalDefaults = array();
/**
* Array of MW configuration globals this class uses.
- *
+ *
* @var array
*/
protected $globalNames = array();
public abstract function getName();
/**
- * @return true if the client library is compiled in.
+ * @return bool Returns true if the client library is compiled in.
*/
public abstract function isCompiled();
+ /**
+ * Checks for installation prerequisites other than those checked by isCompiled()
+ * @since 1.19
+ * @return Status
+ */
+ public function checkPrerequisites() {
+ return Status::newGood();
+ }
+
/**
* Get HTML for a web form that configures this database. Configuration
- * at this time should be the minimum needed to connect and test
+ * at this time should be the minimum needed to connect and test
* whether install or upgrade is required.
*
* If this is called, $this->parent can be assumed to be a WebInstaller.
/**
* Set variables based on the request array, assuming it was submitted
- * via the form returned by getConnectForm(). Validate the connection
+ * via the form returned by getConnectForm(). Validate the connection
* settings by attempting to connect with them.
*
* If this is called, $this->parent can be assumed to be a WebInstaller.
/**
* Get HTML for a web form that retrieves settings used for installation.
* $this->parent can be assumed to be a WebInstaller.
- * If the DB type has no settings beyond those already configured with
+ * If the DB type has no settings beyond those already configured with
* getConnectForm(), this should return false.
+ * @return bool
*/
public function getSettingsForm() {
return false;
/**
* Set variables based on the request array, assuming it was submitted via
* the form return by getSettingsForm().
- *
+ *
* @return Status
*/
public function submitSettingsForm() {
}
/**
- * Connect to the database using the administrative user/password currently
- * defined in the session. On success, return the connection, on failure,
- * return a Status object.
+ * Open a connection to the database using the administrative user/password
+ * currently defined in the session, without any caching. Returns a status
+ * object. On success, the status object will contain a Database object in
+ * its value member.
*
- * This may be called multiple times, so the result should be cached.
+ * @return Status
*/
- public abstract function getConnection();
-
+ public abstract function openConnection();
+
/**
* Create the database and return a Status object indicating success or
* failure.
*/
public abstract function setupDatabase();
+ /**
+ * Connect to the database using the administrative user/password currently
+ * defined in the session. Returns a status object. On success, the status
+ * object will contain a Database object in its value member.
+ *
+ * This will return a cached connection if one is available.
+ *
+ * @return Status
+ */
+ public function getConnection() {
+ if ( $this->db ) {
+ return Status::newGood( $this->db );
+ }
+
+ $status = $this->openConnection();
+ if ( $status->isOK() ) {
+ $this->db = $status->value;
+ // Enable autocommit
+ $this->db->clearFlag( DBO_TRX );
+ $this->db->commit( __METHOD__ );
+ }
+ return $status;
+ }
+
/**
* Create database tables from scratch.
- *
+ *
* @return Status
*/
public function createTables() {
}
$this->db->selectDB( $this->getVar( 'wgDBname' ) );
- if( $this->db->tableExists( 'user' ) ) {
+ if( $this->db->tableExists( 'archive', __METHOD__ ) ) {
$status->warning( 'config-install-tables-exist' );
+ $this->enableLB();
return $status;
}
- $error = $this->db->sourceFile( $this->db->getSchema() );
+ $this->db->setFlag( DBO_DDLMODE ); // For Oracle's handling of schema files
+ $this->db->begin( __METHOD__ );
+
+ $error = $this->db->sourceFile( $this->db->getSchemaPath() );
if( $error !== true ) {
- $this->db->reportQueryError( $error, 0, $sql, __METHOD__ );
+ $this->db->reportQueryError( $error, 0, '', __METHOD__ );
+ $this->db->rollback( __METHOD__ );
$status->fatal( 'config-install-tables-failed', $error );
+ } else {
+ $this->db->commit( __METHOD__ );
+ }
+ // Resume normal operations
+ if( $status->isOk() ) {
+ $this->enableLB();
+ }
+ return $status;
+ }
+
+ /**
+ * Create the tables for each extension the user enabled
+ * @return Status
+ */
+ public function createExtensionTables() {
+ $status = $this->getConnection();
+ if ( !$status->isOK() ) {
+ return $status;
}
+
+ // Now run updates to create tables for old extensions
+ DatabaseUpdater::newForDB( $this->db )->doUpdates( array( 'extensions' ) );
+
return $status;
}
/**
* Get the DBMS-specific options for LocalSettings.php generation.
- *
+ *
* @return String
*/
- public abstract function getLocalSettings();
-
+ public abstract function getLocalSettings();
+
+ /**
+ * Override this to provide DBMS-specific schema variables, to be
+ * substituted into tables.sql and other schema files.
+ * @return array
+ */
+ public function getSchemaVars() {
+ return array();
+ }
+
+ /**
+ * Set appropriate schema variables in the current database connection.
+ *
+ * This should be called after any request data has been imported, but before
+ * any write operations to the database.
+ */
+ public function setupSchemaVars() {
+ $status = $this->getConnection();
+ if ( $status->isOK() ) {
+ $status->value->setSchemaVars( $this->getSchemaVars() );
+ } else {
+ throw new MWException( __METHOD__.': unexpected DB connection error' );
+ }
+ }
+
+ /**
+ * Set up LBFactory so that wfGetDB() etc. works.
+ * We set up a special LBFactory instance which returns the current
+ * installer connection.
+ */
+ public function enableLB() {
+ $status = $this->getConnection();
+ if ( !$status->isOK() ) {
+ throw new MWException( __METHOD__.': unexpected DB connection error' );
+ }
+ LBFactory::setInstance( new LBFactory_Single( array(
+ 'connection' => $status->value ) ) );
+ }
+
/**
* Perform database upgrades
*
* @return Boolean
*/
- public abstract function doUpgrade();
-
+ public function doUpgrade() {
+ $this->setupSchemaVars();
+ $this->enableLB();
+
+ $ret = true;
+ ob_start( array( $this, 'outputHandler' ) );
+ try {
+ $up = DatabaseUpdater::newForDB( $this->db );
+ $up->doUpdates();
+ } catch ( MWException $e ) {
+ echo "\nAn error occurred:\n";
+ echo $e->getText();
+ $ret = false;
+ }
+ ob_end_flush();
+ return $ret;
+ }
+
/**
* Allow DB installers a chance to make last-minute changes before installation
* occurs. This happens before setupDatabase() or createTables() is called, but
* long after the constructor. Helpful for things like modifying setup steps :)
*/
public function preInstall() {
-
+
}
/**
* Allow DB installers a chance to make checks before upgrade.
*/
public function preUpgrade() {
-
+
}
/**
* Get an array of MW configuration globals that will be configured by this class.
+ * @return array
*/
public function getGlobalNames() {
return $this->globalNames;
- }
-
- /**
- * Return any table options to be applied to all tables that don't
- * override them.
- *
- * @return Array
- */
- public function getTableOptions() {
- return array();
}
- /**
+ /**
* Construct and initialise parent.
* This is typically only called from Installer::getDBInstaller()
+ * @param $parent
*/
public function __construct( $parent ) {
$this->parent = $parent;
/**
* Convenience function.
* Check if a named extension is present.
- *
+ *
* @see wfDl
+ * @param $name
+ * @return bool
*/
protected static function checkExtension( $name ) {
wfSuppressWarnings();
/**
* Get the internationalised name for this DBMS.
+ * @return String
*/
public function getReadableName() {
return wfMsg( 'config-type-' . $this->getName() );
}
-
+
/**
* Get a name=>value map of MW configuration globals that overrides.
* DefaultSettings.php
+ * @return array
*/
public function getGlobalDefaults() {
return array();
/**
* Get a name=>value map of internal variables used during installation.
+ * @return array
*/
public function getInternalDefaults() {
return $this->internalDefaults;
/**
* Get a variable, taking local defaults into account.
+ * @param $var string
+ * @param $default null
+ * @return mixed
*/
public function getVar( $var, $default = null ) {
$defaults = $this->getGlobalDefaults();
/**
* Convenience alias for $this->parent->setVar()
+ * @param $name string
+ * @param $value mixed
*/
public function setVar( $name, $value ) {
$this->parent->setVar( $name, $value );
/**
* Get a labelled text box to configure a local variable.
+ *
+ * @param $var string
+ * @param $label string
+ * @param $attribs array
+ * @param $helpData string
+ * @return string
*/
- public function getTextBox( $var, $label, $attribs = array() ) {
+ public function getTextBox( $var, $label, $attribs = array(), $helpData = "" ) {
$name = $this->getName() . '_' . $var;
$value = $this->getVar( $var );
+ if ( !isset( $attribs ) ) {
+ $attribs = array();
+ }
return $this->parent->getTextBox( array(
'var' => $var,
'label' => $label,
'attribs' => $attribs,
'controlName' => $name,
- 'value' => $value
+ 'value' => $value,
+ 'help' => $helpData
) );
}
/**
* Get a labelled password box to configure a local variable.
* Implements password hiding.
+ *
+ * @param $var string
+ * @param $label string
+ * @param $attribs array
+ * @param $helpData string
+ * @return string
*/
- public function getPasswordBox( $var, $label, $attribs = array() ) {
+ public function getPasswordBox( $var, $label, $attribs = array(), $helpData = "" ) {
$name = $this->getName() . '_' . $var;
$value = $this->getVar( $var );
+ if ( !isset( $attribs ) ) {
+ $attribs = array();
+ }
return $this->parent->getPasswordBox( array(
'var' => $var,
'label' => $label,
'attribs' => $attribs,
'controlName' => $name,
- 'value' => $value
+ 'value' => $value,
+ 'help' => $helpData
) );
}
/**
* Get a labelled checkbox to configure a local boolean variable.
+ *
+ * @return string
*/
- public function getCheckBox( $var, $label, $attribs = array() ) {
+ public function getCheckBox( $var, $label, $attribs = array(), $helpData = "" ) {
$name = $this->getName() . '_' . $var;
$value = $this->getVar( $var );
return $this->parent->getCheckBox( array(
'attribs' => $attribs,
'controlName' => $name,
'value' => $value,
+ 'help' => $helpData
));
}
* values: List of allowed values (required)
* itemAttribs Array of attribute arrays, outer key is the value name (optional)
*
+ * @return string
*/
public function getRadioSet( $params ) {
$params['controlName'] = $this->getName() . '_' . $params['var'];
* Assumes that variables containing "password" in the name are (potentially
* fake) passwords.
* @param $varNames Array
+ * @return array
*/
public function setVarsFromRequest( $varNames ) {
return $this->parent->setVarsFromRequest( $varNames, $this->getName() . '_' );
}
/**
- * Determine whether an existing installation of MediaWiki is present in
- * the configured administrative connection. Returns true if there is
+ * Determine whether an existing installation of MediaWiki is present in
+ * the configured administrative connection. Returns true if there is
* such a wiki, false if the database doesn't exist.
*
- * Traditionally, this is done by testing for the existence of either
+ * Traditionally, this is done by testing for the existence of either
* the revision table or the cur table.
*
* @return Boolean
if ( !$this->db->selectDB( $this->getVar( 'wgDBname' ) ) ) {
return false;
}
- return $this->db->tableExists( 'cur' ) || $this->db->tableExists( 'revision' );
+ return $this->db->tableExists( 'cur', __METHOD__ ) || $this->db->tableExists( 'revision', __METHOD__ );
}
/**
* Get a standard install-user fieldset.
+ *
+ * @return String
*/
public function getInstallUserBox() {
return
- Xml::openElement( 'fieldset' ) .
- Xml::element( 'legend', array(), wfMsg( 'config-db-install-account' ) ) .
- $this->getTextBox( '_InstallUser', 'config-db-username' ) .
- $this->getPasswordBox( '_InstallPassword', 'config-db-password' ) .
- $this->parent->getHelpBox( 'config-db-install-help' ) .
- Xml::closeElement( 'fieldset' );
+ Html::openElement( 'fieldset' ) .
+ Html::element( 'legend', array(), wfMsg( 'config-db-install-account' ) ) .
+ $this->getTextBox( '_InstallUser', 'config-db-username', array( 'dir' => 'ltr' ), $this->parent->getHelpBox( 'config-db-install-username' ) ) .
+ $this->getPasswordBox( '_InstallPassword', 'config-db-password', array( 'dir' => 'ltr' ), $this->parent->getHelpBox( 'config-db-install-password' ) ) .
+ Html::closeElement( 'fieldset' );
}
/**
* Submit a standard install user fieldset.
+ * @return Status
*/
public function submitInstallUserBox() {
$this->setVarsFromRequest( array( '_InstallUser', '_InstallPassword' ) );
* Get a standard web-user fieldset
* @param $noCreateMsg String: Message to display instead of the creation checkbox.
* Set this to false to show a creation checkbox.
+ *
+ * @return String
*/
public function getWebUserBox( $noCreateMsg = false ) {
- $name = $this->getName();
- $s = Xml::openElement( 'fieldset' ) .
- Xml::element( 'legend', array(), wfMsg( 'config-db-web-account' ) ) .
- $this->getCheckBox(
+ $wrapperStyle = $this->getVar( '_SameAccount' ) ? 'display: none' : '';
+ $s = Html::openElement( 'fieldset' ) .
+ Html::element( 'legend', array(), wfMsg( 'config-db-web-account' ) ) .
+ $this->getCheckBox(
'_SameAccount', 'config-db-web-account-same',
array( 'class' => 'hideShowRadio', 'rel' => 'dbOtherAccount' )
) .
- Xml::openElement( 'div', array( 'id' => 'dbOtherAccount', 'style' => 'display: none;' ) ) .
+ Html::openElement( 'div', array( 'id' => 'dbOtherAccount', 'style' => $wrapperStyle ) ) .
$this->getTextBox( 'wgDBuser', 'config-db-username' ) .
$this->getPasswordBox( 'wgDBpassword', 'config-db-password' ) .
$this->parent->getHelpBox( 'config-db-web-help' );
} else {
$s .= $this->getCheckBox( '_CreateDBAccount', 'config-db-web-create' );
}
- $s .= Xml::closeElement( 'div' ) . Xml::closeElement( 'fieldset' );
+ $s .= Html::closeElement( 'div' ) . Html::closeElement( 'fieldset' );
return $s;
}
/**
* Submit the form from getWebUserBox().
- *
+ *
* @return Status
*/
public function submitWebUserBox() {
$this->setVarsFromRequest(
array( 'wgDBuser', 'wgDBpassword', '_SameAccount', '_CreateDBAccount' )
);
-
+
if ( $this->getVar( '_SameAccount' ) ) {
$this->setVar( 'wgDBuser', $this->getVar( '_InstallUser' ) );
$this->setVar( 'wgDBpassword', $this->getVar( '_InstallPassword' ) );
}
-
+
+ if( $this->getVar( '_CreateDBAccount' ) && strval( $this->getVar( 'wgDBpassword' ) ) == '' ) {
+ return Status::newFatal( 'config-db-password-empty', $this->getVar( 'wgDBuser' ) );
+ }
+
return Status::newGood();
}
/**
* Common function for databases that don't understand the MySQLish syntax of interwiki.sql.
+ *
+ * @return Status
*/
public function populateInterwikiTable() {
$status = $this->getConnection();
return $status;
}
global $IP;
+ wfSuppressWarnings();
$rows = file( "$IP/maintenance/interwiki.list",
FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES );
+ wfRestoreWarnings();
$interwikis = array();
if ( !$rows ) {
- return Status::newFatal( 'config-install-interwiki-sql' );
+ return Status::newFatal( 'config-install-interwiki-list' );
}
foreach( $rows as $row ) {
$row = preg_replace( '/^\s*([^#]*?)\s*(#.*)?$/', '\\1', $row ); // strip comments - whee