378 lines
10 KiB
PHP
378 lines
10 KiB
PHP
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<?php
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/**
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* Base class for DBMS-specific installation helper classes
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*/
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abstract class InstallerDBType {
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/** The Installer object */
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var $parent;
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/* Database connection */
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var $db;
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/** Internal variables for installation */
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protected $internalDefaults = array();
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/** Array of MW configuration globals this class uses */
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protected $globalNames = array();
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/**
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* Return the internal name, e.g. 'mysql', or 'sqlite'
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*/
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abstract function getName();
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/**
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* @return true if the client library is compiled in
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*/
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abstract public function isCompiled();
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/**
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* Get an array of MW configuration globals that will be configured by this class.
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*/
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public function getGlobalNames() {
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return $this->globalNames;
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}
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/**
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* Get HTML for a web form that configures this database. Configuration
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* at this time should be the minimum needed to connect and test
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* whether install or upgrade is required.
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*
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* If this is called, $this->parent can be assumed to be a WebInstaller
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*/
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abstract function getConnectForm();
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/**
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* Set variables based on the request array, assuming it was submitted
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* via the form returned by getConnectForm(). Validate the connection
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* settings by attempting to connect with them.
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*
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* If this is called, $this->parent can be assumed to be a WebInstaller
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*
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* @return Status
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*/
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abstract function submitConnectForm();
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/**
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* Get HTML for a web form that retrieves settings used for installation.
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* $this->parent can be assumed to be a WebInstaller.
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* If the DB type has no settings beyond those already configured with
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* getConnectForm(), this should return false.
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*/
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abstract function getSettingsForm();
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/**
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* Set variables based on the request array, assuming it was submitted via
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* the form return by getSettingsForm().
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* @return Status
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*/
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abstract function submitSettingsForm();
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/**
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* Connect to the database using the administrative user/password currently
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* defined in the session. On success, return the connection, on failure,
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* return a Status object.
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*
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* This may be called multiple times, so the result should be cached.
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*/
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abstract function getConnection();
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/**
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* Allow DB installers a chance to make last-minute changes before installation
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* occurs. This happens before setupDatabase() or createTables() is called, but
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* long after the constructor. Helpful for things like modifying setup steps :)
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*/
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public function preInstall() {}
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/**
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* Create the database and return a Status object indicating success or
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* failure.
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*
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* @return Status
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*/
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abstract function setupDatabase();
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/**
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* Create database tables from scratch
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* @return \type Status
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*/
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abstract function createTables();
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/**
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* Perform database upgrades
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* @todo make abstract
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*/
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/*abstract*/ function doUpgrade() {
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return false;
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}
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/**
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* Return any table options to be applied to all tables that don't
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* override them
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* @return Array
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*/
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function getTableOptions() {
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return array();
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}
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/**
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* Get the DBMS-specific options for LocalSettings.php generation.
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* @return String
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*/
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abstract function getLocalSettings();
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/**
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* Construct and initialise parent.
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* This is typically only called from Installer::getDBInstaller()
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*/
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function __construct( $parent ) {
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$this->parent = $parent;
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}
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/**
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* Convenience function
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* Check if a named extension is present
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*/
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protected static function checkExtension( $name ) {
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wfSuppressWarnings();
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$compiled = wfDl( $name );
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wfRestoreWarnings();
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return $compiled;
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}
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/**
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* Get the internationalised name for this DBMS
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*/
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function getReadableName() {
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return wfMsg( 'config-type-' . $this->getName() );
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}
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/**
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* Get a name=>value map of MW configuration globals that overrides
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* DefaultSettings.php
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*/
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function getGlobalDefaults() {
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return array();
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}
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/**
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* Get a name=>value map of internal variables used during installation
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*/
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public function getInternalDefaults() {
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return $this->internalDefaults;
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}
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/**
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* Get a variable, taking local defaults into account
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*/
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function getVar( $var, $default = null ) {
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$defaults = $this->getGlobalDefaults();
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$internal = $this->getInternalDefaults();
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if ( isset( $defaults[$var] ) ) {
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$default = $defaults[$var];
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} elseif ( isset( $internal[$var] ) ) {
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$default = $internal[$var];
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}
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return $this->parent->getVar( $var, $default );
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}
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/**
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* Convenience alias for $this->parent->setVar()
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*/
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function setVar( $name, $value ) {
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$this->parent->setVar( $name, $value );
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}
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/**
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* Get a labelled text box to configure a local variable
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*/
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function getTextBox( $var, $label, $attribs = array() ) {
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$name = $this->getName() . '_' . $var;
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$value = $this->getVar( $var );
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return $this->parent->getTextBox( array(
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'var' => $var,
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'label' => $label,
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'attribs' => $attribs,
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'controlName' => $name,
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'value' => $value
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) );
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}
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/**
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* Get a labelled password box to configure a local variable
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* Implements password hiding
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*/
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function getPasswordBox( $var, $label, $attribs = array() ) {
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$name = $this->getName() . '_' . $var;
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$value = $this->getVar( $var );
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return $this->parent->getPasswordBox( array(
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'var' => $var,
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'label' => $label,
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'attribs' => $attribs,
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'controlName' => $name,
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'value' => $value
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) );
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}
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/**
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* Get a labelled checkbox to configure a local boolean variable
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*/
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function getCheckBox( $var, $label, $attribs = array() ) {
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$name = $this->getName() . '_' . $var;
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$value = $this->getVar( $var );
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return $this->parent->getCheckBox( array(
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'var' => $var,
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'label' => $label,
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'attribs' => $attribs,
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'controlName' => $name,
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'value' => $value,
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));
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}
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/**
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* Get a set of labelled radio buttons
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*
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* @param $params Array:
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* Parameters are:
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* var: The variable to be configured (required)
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* label: The message name for the label (required)
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* itemLabelPrefix: The message name prefix for the item labels (required)
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* values: List of allowed values (required)
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* itemAttribs Array of attribute arrays, outer key is the value name (optional)
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*
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*/
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function getRadioSet( $params ) {
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$params['controlName'] = $this->getName() . '_' . $params['var'];
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$params['value'] = $this->getVar( $params['var'] );
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return $this->parent->getRadioSet( $params );
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}
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/**
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* Convenience function to set variables based on form data.
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* Assumes that variables containing "password" in the name are (potentially
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* fake) passwords.
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* @param $varNames Array
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*/
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function setVarsFromRequest( $varNames ) {
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return $this->parent->setVarsFromRequest( $varNames, $this->getName() . '_' );
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}
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/**
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* Determine whether an existing installation of MediaWiki is present in
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* the configured administrative connection. Returns true if there is
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* such a wiki, false if the database doesn't exist.
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*
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* Traditionally, this is done by testing for the existence of either
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* the revision table or the cur table.
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*
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* @return Boolean
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*/
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function needsUpgrade() {
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$status = $this->getConnection();
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if ( !$status->isOK() ) {
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return false;
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}
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$conn = $status->value;
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if ( !$conn->selectDB( $this->getVar( 'wgDBname' ) ) ) {
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return false;
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}
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return $conn->tableExists( 'cur' ) || $conn->tableExists( 'revision' );
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}
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/**
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* Get a standard install-user fieldset
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*/
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function getInstallUserBox() {
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return
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Xml::openElement( 'fieldset' ) .
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Xml::element( 'legend', array(), wfMsg( 'config-db-install-account' ) ) .
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$this->getTextBox( '_InstallUser', 'config-db-username' ) .
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$this->getPasswordBox( '_InstallPassword', 'config-db-password' ) .
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$this->parent->getHelpBox( 'config-db-install-help' ) .
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Xml::closeElement( 'fieldset' );
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}
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/**
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* Submit a standard install user fieldset
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*/
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function submitInstallUserBox() {
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$this->setVarsFromRequest( array( '_InstallUser', '_InstallPassword' ) );
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return Status::newGood();
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}
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/**
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* Get a standard web-user fieldset
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* @param $noCreateMsg String: Message to display instead of the creation checkbox.
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* Set this to false to show a creation checkbox.
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*/
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function getWebUserBox( $noCreateMsg = false ) {
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$name = $this->getName();
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$s = Xml::openElement( 'fieldset' ) .
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Xml::element( 'legend', array(), wfMsg( 'config-db-web-account' ) ) .
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$this->getCheckBox(
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'_SameAccount', 'config-db-web-account-same',
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array( 'class' => 'hideShowRadio', 'rel' => 'dbOtherAccount' )
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) .
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Xml::openElement( 'div', array( 'id' => 'dbOtherAccount', 'style' => 'display: none;' ) ) .
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$this->getTextBox( 'wgDBuser', 'config-db-username' ) .
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$this->getPasswordBox( 'wgDBpassword', 'config-db-password' ) .
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$this->parent->getHelpBox( 'config-db-web-help' );
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if ( $noCreateMsg ) {
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$s .= $this->parent->getWarningBox( wfMsgNoTrans( $noCreateMsg ) );
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} else {
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$s .= $this->getCheckBox( '_CreateDBAccount', 'config-db-web-create' );
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}
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$s .= Xml::closeElement( 'div' ) . Xml::closeElement( 'fieldset' );
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return $s;
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}
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/**
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* Submit the form from getWebUserBox().
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* @return Status
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*/
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function submitWebUserBox() {
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$this->setVarsFromRequest( array( 'wgDBuser', 'wgDBpassword',
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'_SameAccount', '_CreateDBAccount' ) );
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if ( $this->getVar( '_SameAccount' ) ) {
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$this->setVar( 'wgDBuser', $this->getVar( '_InstallUser' ) );
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$this->setVar( 'wgDBpassword', $this->getVar( '_InstallPassword' ) );
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}
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return Status::newGood();
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}
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/**
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* Common function for databases that don't understand the MySQLish syntax of interwiki.sql
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*/
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public function populateInterwikiTable() {
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$status = $this->getConnection();
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if ( !$status->isOK() ) {
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return $status;
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}
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$this->db->selectDB( $this->getVar( 'wgDBname' ) );
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if( $this->db->selectRow( 'interwiki', '*', array(), __METHOD__ ) ) {
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$status->warning( 'config-install-interwiki-exists' );
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return $status;
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}
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global $IP;
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$rows = file( "$IP/maintenance/interwiki.list",
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FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES );
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$interwikis = array();
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if ( !$rows ) {
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return Status::newFatal( 'config-install-interwiki-sql' );
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}
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foreach( $rows as $row ) {
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$row = preg_replace( '/^\s*([^#]*?)\s*(#.*)?$/', '\\1', $row ); // strip comments - whee
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if ( $row == "" ) continue;
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$interwikis[] = array_combine(
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array( 'iw_prefix', 'iw_url', 'iw_local' ),
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explode( '|', $row )
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);
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}
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$this->db->insert( 'interwiki', $interwikis, __METHOD__ );
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return Status::newGood();
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}
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}
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