3 files changed, 287 insertions, 0 deletions
diff --git a/extensions/ConfirmEdit/includes/CaptchaStore.php b/extensions/ConfirmEdit/includes/CaptchaStore.php
new file mode 100644
index 00000000..b0854df1
--- /dev/null
+++ b/extensions/ConfirmEdit/includes/CaptchaStore.php
@@ -0,0 +1,116 @@
+<?php
+
+abstract class CaptchaStore {
+	/**
+	 * Store the correct answer for a given captcha
+	 * @param  $index String
+	 * @param  $info String the captcha result
+	 */
+	public abstract function store( $index, $info );
+
+	/**
+	 * Retrieve the answer for a given captcha
+	 * @param  $index String
+	 * @return String
+	 */
+	public abstract function retrieve( $index );
+
+	/**
+	 * Delete a result once the captcha has been used, so it cannot be reused
+	 * @param  $index
+	 */
+	public abstract function clear( $index );
+
+	/**
+	 * Whether this type of CaptchaStore needs cookies
+	 * @return Bool
+	 */
+	public abstract function cookiesNeeded();
+
+	/**
+	 * The singleton instance
+	 * @var CaptchaStore
+	 */
+	private static $instance;
+
+	/**
+	 * Get somewhere to store captcha data that will persist between requests
+	 *
+	 * @throws Exception
+	 * @return CaptchaStore
+	 */
+	public final static function get() {
+		if ( !self::$instance instanceof self ) {
+			global $wgCaptchaStorageClass;
+			if ( in_array( 'CaptchaStore', class_parents( $wgCaptchaStorageClass ) ) ) {
+				self::$instance = new $wgCaptchaStorageClass;
+			} else {
+				throw new Exception( "Invalid CaptchaStore class $wgCaptchaStorageClass" );
+			}
+		}
+		return self::$instance;
+	}
+
+	/**
+	 * Protected constructor: no creating instances except through the factory method above
+	 */
+	protected function __construct() {}
+}
+
+class CaptchaSessionStore extends CaptchaStore {
+
+	protected function __construct() {
+		// Make sure the session is started
+		if ( session_id() === '' ) {
+			wfSetupSession();
+		}
+	}
+
+	function store( $index, $info ) {
+		$_SESSION['captcha' . $info['index']] = $info;
+	}
+
+	function retrieve( $index ) {
+		if ( isset( $_SESSION['captcha' . $index] ) ) {
+			return $_SESSION['captcha' . $index];
+		} else {
+			return false;
+		}
+	}
+
+	function clear( $index ) {
+		unset( $_SESSION['captcha' . $index] );
+	}
+
+	function cookiesNeeded() {
+		return true;
+	}
+}
+
+class CaptchaCacheStore extends CaptchaStore {
+
+	function store( $index, $info ) {
+		global $wgMemc, $wgCaptchaSessionExpiration;
+		$wgMemc->set( wfMemcKey( 'captcha', $index ), $info,
+			$wgCaptchaSessionExpiration );
+	}
+
+	function retrieve( $index ) {
+		global $wgMemc;
+		$info = $wgMemc->get( wfMemcKey( 'captcha', $index ) );
+		if ( $info ) {
+			return $info;
+		} else {
+			return false;
+		}
+	}
+
+	function clear( $index ) {
+		global $wgMemc;
+		$wgMemc->delete( wfMemcKey( 'captcha', $index ) );
+	}
+
+	function cookiesNeeded() {
+		return false;
+	}
+}
diff --git a/extensions/ConfirmEdit/includes/ConfirmEditHooks.php b/extensions/ConfirmEdit/includes/ConfirmEditHooks.php
new file mode 100644
index 00000000..5f9c3384
--- /dev/null
+++ b/extensions/ConfirmEdit/includes/ConfirmEditHooks.php
@@ -0,0 +1,149 @@
+<?php
+
+class ConfirmEditHooks {
+	/**
+	 * Get the global Captcha instance
+	 *
+	 * @return SimpleCaptcha
+	 */
+	static function getInstance() {
+		global $wgCaptcha, $wgCaptchaClass;
+
+		static $done = false;
+
+		if ( !$done ) {
+			$done = true;
+			$wgCaptcha = new $wgCaptchaClass;
+		}
+
+		return $wgCaptcha;
+	}
+
+	static function confirmEditMerged( $context, $content, $status, $summary, $user, $minorEdit ) {
+		return self::getInstance()->confirmEditMerged( $context, $content, $status, $summary,
+			$user, $minorEdit );
+	}
+
+	static function confirmEditPage( $editpage, $buttons, $tabindex ) {
+		self::getInstance()->editShowCaptcha( $editpage );
+	}
+
+	static function confirmEditAPI( $editPage, $newtext, &$resultArr ) {
+		return self::getInstance()->confirmEditAPI( $editPage, $newtext, $resultArr );
+	}
+
+	static function showEditFormFields( &$editPage, &$out ) {
+		return self::getInstance()->showEditFormFields( $editPage, $out );
+	}
+
+	static function addNewAccountApiForm( $apiModule, $loginForm ) {
+		return self::getInstance()->addNewAccountApiForm( $apiModule, $loginForm );
+	}
+
+	static function addNewAccountApiResult( $apiModule, $loginPage, &$result ) {
+		return self::getInstance()->addNewAccountApiResult( $apiModule, $loginPage, $result );
+	}
+
+	static function injectUserCreate( &$template ) {
+		return self::getInstance()->injectUserCreate( $template );
+	}
+
+	static function confirmUserCreate( $u, &$message, &$status = null ) {
+		return self::getInstance()->confirmUserCreate( $u, $message, $status );
+	}
+
+	static function triggerUserLogin( $user, $password, $retval ) {
+		return self::getInstance()->triggerUserLogin( $user, $password, $retval );
+	}
+
+	static function injectUserLogin( &$template ) {
+		return self::getInstance()->injectUserLogin( $template );
+	}
+
+	static function confirmUserLogin( $u, $pass, &$retval ) {
+		return self::getInstance()->confirmUserLogin( $u, $pass, $retval );
+	}
+
+	static function injectEmailUser( &$form ) {
+		return self::getInstance()->injectEmailUser( $form );
+	}
+
+	static function confirmEmailUser( $from, $to, $subject, $text, &$error ) {
+		return self::getInstance()->confirmEmailUser( $from, $to, $subject, $text, $error );
+	}
+
+	// Default $flags to 1 for backwards-compatible behavior
+	public static function APIGetAllowedParams( &$module, &$params, $flags = 1 ) {
+		return self::getInstance()->APIGetAllowedParams( $module, $params, $flags );
+	}
+
+	public static function APIGetParamDescription( &$module, &$desc ) {
+		return self::getInstance()->APIGetParamDescription( $module, $desc );
+	}
+
+	/**
+	 * Hook to add PHPUnit test cases.
+	 * @see https://www.mediawiki.org/wiki/Manual:Hooks/UnitTestsList
+	 *
+	 * @param array &$files
+	 * @return boolean
+	 */
+	public static function onUnitTestsList( array &$files ) {
+		// @codeCoverageIgnoreStart
+		$directoryIterator = new RecursiveDirectoryIterator( dirname( __DIR__ ) . '/tests/' );
+
+		/**
+		 * @var SplFileInfo $fileInfo
+		 */
+		$ourFiles = array();
+		foreach ( new RecursiveIteratorIterator( $directoryIterator ) as $fileInfo ) {
+			if ( substr( $fileInfo->getFilename(), -8 ) === 'Test.php' ) {
+				$ourFiles[] = $fileInfo->getPathname();
+			}
+		}
+
+		$files = array_merge( $files, $ourFiles );
+		return true;
+		// @codeCoverageIgnoreEnd
+	}
+
+	/**
+	 * Set up $wgWhitelistRead
+	 */
+	public static function confirmEditSetup() {
+		global $wgGroupPermissions, $wgCaptchaTriggers, $wgWikimediaJenkinsCI;
+
+		// There is no need to run (core) tests with enabled ConfirmEdit - bug T44145
+		if ( isset( $wgWikimediaJenkinsCI ) && $wgWikimediaJenkinsCI === true ) {
+			$wgCaptchaTriggers = false;
+		}
+
+		if ( !$wgGroupPermissions['*']['read'] && $wgCaptchaTriggers['badlogin'] ) {
+			// We need to ensure that the captcha interface is accessible
+			// so that unauthenticated users can actually get in after a
+			// mistaken password typing.
+			global $wgWhitelistRead;
+			$image = SpecialPage::getTitleFor( 'Captcha', 'image' );
+			$help = SpecialPage::getTitleFor( 'Captcha', 'help' );
+			$wgWhitelistRead[] = $image->getPrefixedText();
+			$wgWhitelistRead[] = $help->getPrefixedText();
+		}
+	}
+	/**
+	 * Callback for extension.json of FancyCaptcha to set a default captcha directory,
+	 * which depends on wgUploadDirectory
+	 */
+	public static function onFancyCaptchaSetup() {
+		global $wgCaptchaDirectory, $wgUploadDirectory;
+		if ( !$wgCaptchaDirectory ) {
+			$wgCaptchaDirectory = "$wgUploadDirectory/captcha";
+		}
+	}
+	/**
+	 * Callback for extension.json of ReCaptcha to require the recaptcha library php file.
+	 * FIXME: This should be done in a better way, e.g. only load the libraray, if really needed.
+	 */
+	public static function onReCaptchaSetup() {
+		require_once( "ReCaptcha/recaptchalib.php" );
+	}
+}
diff --git a/extensions/ConfirmEdit/includes/specials/SpecialCaptcha.php b/extensions/ConfirmEdit/includes/specials/SpecialCaptcha.php
new file mode 100644
index 00000000..63305791
--- /dev/null
+++ b/extensions/ConfirmEdit/includes/specials/SpecialCaptcha.php
@@ -0,0 +1,22 @@
+<?php
+class CaptchaSpecialPage extends UnlistedSpecialPage {
+	public function __construct() {
+		parent::__construct( 'Captcha' );
+	}
+
+	function execute( $par ) {
+		$this->setHeaders();
+
+		$instance = ConfirmEditHooks::getInstance();
+
+		switch( $par ) {
+			case "image":
+				if ( method_exists( $instance, 'showImage' ) ) {
+					return $instance->showImage();
+				}
+			case "help":
+			default:
+				return $instance->showHelp();
+		}
+	}
+}