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<?php
/**
* 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 Installer
*/
namespace MediaWiki\Installer;
use MediaWiki\Status\Status;
class WebInstallerExistingWiki extends WebInstallerPage {
/**
* @return string
*/
public function execute() {
// If there is no LocalSettings.php, continue to the installer welcome page
$vars = Installer::getExistingLocalSettings();
if ( !$vars ) {
return 'skip';
}
// Check if the upgrade key supplied to the user has appeared in LocalSettings.php
if ( $vars['wgUpgradeKey'] !== false
&& $this->getVar( '_UpgradeKeySupplied' )
&& $this->getVar( 'wgUpgradeKey' ) === $vars['wgUpgradeKey']
) {
// It's there, so the user is authorized
$status = $this->handleExistingUpgrade( $vars );
if ( $status->isOK() ) {
return 'skip';
} else {
$this->startForm();
$this->parent->showStatusBox( $status );
$this->endForm( 'continue' );
return 'output';
}
}
// If there is no $wgUpgradeKey, tell the user to add one to LocalSettings.php
if ( $vars['wgUpgradeKey'] === false ) {
if ( $this->getVar( 'wgUpgradeKey', false ) === false ) {
$secretKey = $this->getVar( 'wgSecretKey' ); // preserve $wgSecretKey
$this->parent->generateKeys();
$this->setVar( 'wgSecretKey', $secretKey );
$this->setVar( '_UpgradeKeySupplied', true );
}
$this->startForm();
$this->addHTML( $this->parent->getInfoBox(
wfMessage( 'config-upgrade-key-missing', "<pre dir=\"ltr\">\$wgUpgradeKey = '" .
$this->getVar( 'wgUpgradeKey' ) . "';</pre>" )->plain()
) );
$this->endForm( 'continue' );
return 'output';
}
// If there is an upgrade key, but it wasn't supplied, prompt the user to enter it
$r = $this->parent->request;
if ( $r->wasPosted() ) {
$key = $r->getText( 'config_wgUpgradeKey' );
if ( !$key || $key !== $vars['wgUpgradeKey'] ) {
$this->parent->showError( 'config-localsettings-badkey' );
$this->showKeyForm();
return 'output';
}
// Key was OK
$status = $this->handleExistingUpgrade( $vars );
if ( $status->isOK() ) {
return 'continue';
} else {
$this->parent->showStatusBox( $status );
$this->showKeyForm();
return 'output';
}
} else {
$this->showKeyForm();
return 'output';
}
}
/**
* Show the "enter key" form
*/
protected function showKeyForm() {
$this->startForm();
$this->addHTML(
$this->parent->getInfoBox( wfMessage( 'config-localsettings-upgrade' )->plain() ) .
'<br />' .
$this->parent->getTextBox( [
'var' => 'wgUpgradeKey',
'label' => 'config-localsettings-key',
'attribs' => [ 'autocomplete' => 'off' ],
] )
);
$this->endForm( 'continue' );
}
/**
* @param string[] $names
* @param mixed[] $vars
*
* @return Status
*/
protected function importVariables( $names, $vars ) {
$status = Status::newGood();
foreach ( $names as $name ) {
if ( !isset( $vars[$name] ) ) {
$status->fatal( 'config-localsettings-incomplete', $name );
}
$this->setVar( $name, $vars[$name] );
}
return $status;
}
/**
* Initiate an upgrade of the existing database
*
* @param mixed[] $vars Variables from LocalSettings.php
*
* @return Status
*/
protected function handleExistingUpgrade( $vars ) {
// Check $wgDBtype
if ( !isset( $vars['wgDBtype'] ) ||
!in_array( $vars['wgDBtype'], Installer::getDBTypes() )
) {
return Status::newFatal( 'config-localsettings-connection-error', '' );
}
// Set the relevant variables from LocalSettings.php
$requiredVars = [ 'wgDBtype' ];
$status = $this->importVariables( $requiredVars, $vars );
$installer = $this->parent->getDBInstaller();
$status->merge( $this->importVariables( $installer->getGlobalNames(), $vars ) );
if ( !$status->isOK() ) {
return $status;
}
$this->setVar( '_InstallUser', $vars['wgDBadminuser'] ?? $vars['wgDBuser'] );
$this->setVar( '_InstallPassword', $vars['wgDBadminpassword'] ?? $vars['wgDBpassword'] );
// Test the database connection
$status = $installer->getConnection( DatabaseInstaller::CONN_CREATE_DATABASE );
if ( !$status->isOK() ) {
// Adjust the error message to explain things correctly
$status->replaceMessage( 'config-connection-error',
'config-localsettings-connection-error' );
return $status;
}
// All good
$this->setVar( '_ExistingDBSettings', true );
// Copy $wgAuthenticationTokenVersion too, if it exists
$this->setVar( 'wgAuthenticationTokenVersion',
$vars['wgAuthenticationTokenVersion'] ?? null
);
return $status;
}
}
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