1 files changed, 47 insertions, 0 deletions
diff --git a/extensions/ConfirmEdit/Asirra.class.php b/extensions/ConfirmEdit/Asirra.class.php
new file mode 100644
index 00000000..1f31d089
--- /dev/null
+++ b/extensions/ConfirmEdit/Asirra.class.php
@@ -0,0 +1,47 @@
+<?php
+/**
+ * @author Bachsau
+ * @author Niklas Laxström
+ */
+
+class Asirra extends SimpleCaptcha {
+	public $asirra_clientscript = 'http://challenge.asirra.com/js/AsirraClientSide.js';
+
+	// As we don't have to store anything but some other things to do,
+	// we're going to replace that constructor completely.
+	function __construct() {
+		global $wgExtensionAssetsPath, $wgAsirraScriptPath;
+		$this->asirra_localpath = "$wgExtensionAssetsPath/ConfirmEdit";
+	}
+
+	function getForm() {
+		global $wgAsirraEnlargedPosition, $wgAsirraCellsPerRow, $wgOut, $wgLang;
+
+		$wgOut->addModules( 'ext.confirmedit.asirra' );
+		$js = Html::linkedScript( $this->asirra_clientscript );
+
+		$message = Xml::encodeJsVar( wfMessage( 'asirra-createaccount-fail' )->plain() );
+		$js .= Html::inlineScript( <<<JAVASCRIPT
+var asirra_js_failed = '$message';
+JAVASCRIPT
+		);
+		$js .=  '<noscript>' . wfMessage( 'asirra-nojs' )->parse() . '</noscript>';
+		return $js;
+	}
+
+	function passCaptcha() {
+		global $wgRequest;
+
+		$ticket = $wgRequest->getVal( 'Asirra_Ticket' );
+		$api = 'http://challenge.asirra.com/cgi/Asirra?';
+		$params = array(
+			'action' => 'ValidateTicket',
+			'ticket' => $ticket,
+		);
+
+		$response = Http::get( $api . wfArrayToCgi( $params ) );
+		$xml = simplexml_load_string( $response );
+		$result = $xml->xpath( '/AsirraValidation/Result' );
+		return strval( $result[0] ) === 'Pass';
+	}
+}