1 files changed, 108 insertions, 0 deletions
diff --git a/extensions/FunnyQuestion/FunnyQuestion.body.php b/extensions/FunnyQuestion/FunnyQuestion.body.php
new file mode 100644
index 00000000..04d25f8d
--- /dev/null
+++ b/extensions/FunnyQuestion/FunnyQuestion.body.php
@@ -0,0 +1,108 @@
+<?php
+
+
+class FunnyQuestion {
+
+	private static function normalizeAnswer($answer) {
+		return preg_replace('/[^a-z0-9]/', '', strtolower($answer));
+	}
+
+	private static function getLang() {
+		global $wgLang;
+
+		return (!empty($wgFunnyQuestions[$wgLang->getCode()]) ? $wgFunnyQuestions[$wgLang->getCode()] : 'en');
+	}
+
+	private static function getFunnyQuestion() {
+		global $wgFunnyQuestionHash, $wgFunnyQuestions;
+
+		$question = array_rand($wgFunnyQuestions[self::getLang()]);
+		$time = time();
+		# make sure the user is not able to tell us the question to answer
+		$hash = sha1($time.$question.$wgFunnyQuestionHash);
+	
+		return array('question' => $question, 'time' => $time, 'hash' => $hash);
+	}
+
+	private static function checkFunnyQuestion() {
+		global $wgFunnyQuestionHash, $wgFunnyQuestions, $wgFunnyQuestionTimeout, $wgFunnyQuestionWait;
+
+		if (!empty($_POST['FunnyQuestionTime'])
+		&& !empty($_POST['FunnyQuestionHash'])
+		&& !empty($_POST['FunnyAnswer'])) {
+			$now = time();
+			$time = $_POST['FunnyQuestionTime'];
+			$hash = $_POST['FunnyQuestionHash'];
+			$userAnswer = self::normalizeAnswer($_POST['FunnyAnswer']);
+		} else {
+			return false;
+		}
+
+		if ($now - $time > $wgFunnyQuestionTimeout) {
+			return false;
+		} elseif ($now - $time < $wgFunnyQuestionWait) {
+			return false;
+		}
+
+		foreach ($wgFunnyQuestions[self::getLang()] as $question => $answers) {
+			if (!is_array($answers)) {
+				$answers = array($answers);
+			}
+			foreach ($answers as $answer) {
+				if (self::normalizeAnswer($answer) == $userAnswer
+					&& $hash == sha1($time.$question.$wgFunnyQuestionHash)) {
+					return true;
+				}
+			}
+		}
+
+		return false;
+	}
+
+	public static function addFunnyQuestionToEditPage($editpage, $output) {
+		global $wgUser;
+
+		if (!$wgUser->isLoggedIn()) {
+			$funnyQuestion = self::getFunnyQuestion();
+			$editpage->editFormTextAfterWarn .= 
+				'<div class="editOptions">
+					<label for="FunnyAnswerField"><strong>'
+					.wfMsg('question-'.sha1($funnyQuestion['question'])).'</strong></label>
+					<input id="FunnyAnswerField" type="text" name="FunnyAnswer" value="" />
+					<input type="hidden" name="FunnyQuestionTime" value="'.$funnyQuestion['time'].'" />
+					<input type="hidden" name="FunnyQuestionHash" value="'.$funnyQuestion['hash'].'" />
+				</div>';
+		}
+		return true;
+	}
+
+	public static function checkFunnyQuestionOnEditPage($editpage, $text, $section, $error) {
+		global $wgUser;
+
+		if (!$wgUser->isLoggedIn() && !self::checkFunnyQuestion()) {
+			$error = '<div class="errorbox">'.wfMsg('wrong-answer').'</div><br clear="all" />';
+		}
+		return true;
+	}
+
+	public static function addFunnyQuestionToUserCreateForm($template) {
+		$funnyQuestion = self::getFunnyQuestion();
+		$template->addInputItem('FunnyAnswer', '', 'text', 'question-label', 'question-'.sha1($funnyQuestion['question']));
+		$template->addInputItem('FunnyQuestionTime', $funnyQuestion['time'], 'hidden', '');
+		$template->addInputItem('FunnyQuestionHash', $funnyQuestion['hash'], 'hidden', '');
+		return true;
+	}
+
+	public static function checkFunnyQuestionOnAbortNewAccount($user, $message) {
+		if (!self::checkFunnyQuestion()) {
+			$message = wfMsg('wrong-answer');
+			return false;
+		} else {
+			return true;
+		}
+	}
+
+}
+
+?>
+