From 3b06ee0d381dc1be5f40ca98ad4278046d869d21 Mon Sep 17 00:00:00 2001
From: Andreas Baumann <mail@andreasbaumann.cc>
Date: Sun, 17 Nov 2019 20:57:39 +0100
Subject: checked in initial customized verison for Archlinux32

---
 addons/funnyquestion.php | 160 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 160 insertions(+)
 create mode 100644 addons/funnyquestion.php

(limited to 'addons/funnyquestion.php')

diff --git a/addons/funnyquestion.php b/addons/funnyquestion.php
new file mode 100644
index 0000000..e3cd4e9
--- /dev/null
+++ b/addons/funnyquestion.php
@@ -0,0 +1,160 @@
+<?php
+
+if (!defined('PUN')) {
+    exit;
+}
+
+class addon_funnyquestion extends flux_addon
+{
+
+    public function __construct()
+    {
+        global $funnyquestion_disabled, $funnyquestion_hash, $funny_questions, $funnyquestion_timeout, $funnyquestion_remember, $funnyquestion_wait, $pun_user, $lang_funnyquestion;
+
+        !isset($funnyquestion_disabled) && $funnyquestion_disabled = false;
+        !isset($funnyquestion_hash) && $funnyquestion_hash = dirname(__FILE__);
+        !isset($funny_questions) && $funny_questions = array(
+            'What is the Ultimate Answer to the Ultimate Question of Life, The Universe, and Everything?' => '42'
+        );
+        !isset($funnyquestion_timeout) && $funnyquestion_timeout = 3600;
+        !isset($funnyquestion_remember) && $funnyquestion_remember = 3600 * 24;
+        !isset($funnyquestion_wait) && $funnyquestion_wait = 2;
+
+        if (file_exists(PUN_ROOT . 'lang/' . $pun_user['language'] . '/funnyquestion.php')) {
+            require PUN_ROOT . 'lang/' . $pun_user['language'] . '/funnyquestion.php';
+        } else {
+            require PUN_ROOT . 'lang/English/funnyquestion.php';
+        }
+    }
+
+    /**
+     * @param flux_addon_manager $manager
+     */
+    public function register($manager)
+    {
+        $manager->bind('register_before_submit', array($this, 'print_funnyquestion'));
+        $manager->bind('quickpost_before_submit', array($this, 'print_funnyquestion'));
+        $manager->bind('post_before_submit', array($this, 'print_funnyquestion'));
+        $manager->bind('register_before_validation', array($this, 'set_error_on_check_funnyquestion'));
+        $manager->bind('post_before_validation', array($this, 'set_error_on_check_funnyquestion'));
+    }
+
+    public function print_funnyquestion()
+    {
+        echo $this->get_funnyquestion();
+    }
+
+    public function set_error_on_check_funnyquestion()
+    {
+        global $errors, $lang_funnyquestion;
+        $this->check_funnyquestion() || $errors[] = $lang_funnyquestion['wrong-answer'];
+    }
+
+    /**
+     * @param string $answer
+     * @return string
+     */
+    private function normalize_funnyanswer($answer)
+    {
+        return preg_replace('/[^a-z0-9]/', '', strtolower($answer));
+    }
+
+    private function set_funnycookie()
+    {
+        global $funnyquestion_hash, $funnyquestion_remember;
+
+        $time = time();
+        forum_setcookie('funnyquestion_hash', sha1($time . get_remote_address() . $funnyquestion_hash),
+            $time + $funnyquestion_remember);
+        forum_setcookie('funnyquestion_time', $time, $time + $funnyquestion_remember);
+    }
+
+    /**
+     * @return bool
+     */
+    private function has_funnycookie()
+    {
+        global $funnyquestion_hash, $funnyquestion_remember;
+
+        return (!empty($_COOKIE['funnyquestion_hash']) && !empty($_COOKIE['funnyquestion_time'])
+            && time() - $funnyquestion_remember <= $_COOKIE['funnyquestion_time']
+            && sha1($_COOKIE['funnyquestion_time'] . get_remote_address() . $funnyquestion_hash) == $_COOKIE['funnyquestion_hash']);
+    }
+
+    /**
+     * @return string
+     */
+    private function get_funnyquestion()
+    {
+        global $funnyquestion_disabled, $funnyquestion_hash, $funny_questions, $lang_funnyquestion, $lang_common, $pun_user;
+
+        if ($funnyquestion_disabled || !$pun_user['is_guest'] || $this->has_funnycookie()) {
+            return '';
+        }
+
+        $time = time();
+        $question = array_rand($funny_questions);
+        # make sure the user is not able to tell us the question to answer
+        $hash = sha1($time . $question . $funnyquestion_hash);
+
+        return '<div class="inform">
+			<fieldset>
+				<legend>' . $lang_funnyquestion['question-label'] . '</legend>
+				<div class="infldset">
+					<input type="hidden" name="funnyquestion_time" value="' . $time . '" />
+					<input type="hidden" name="funnyquestion_hash" value="' . $hash . '" />
+					<label class="required">
+						<strong>' . $question . '<span>' . $lang_common['Required'] . '</span></strong><br />
+						<input type="text" name="funny_answer" value="" size="50" /><br />
+					</label>
+				</div>
+			</fieldset>
+		</div>';
+    }
+
+    /**
+     * @return bool
+     */
+    private function check_funnyquestion()
+    {
+        global $funnyquestion_disabled, $funnyquestion_hash, $funnyquestion_timeout, $funnyquestion_wait, $funny_questions, $pun_user;
+
+        if ($funnyquestion_disabled || !$pun_user['is_guest'] || $this->has_funnycookie()) {
+            return true;
+        }
+
+        if (!empty($_POST['funnyquestion_time'])
+            && !empty($_POST['funnyquestion_hash'])
+            && !empty($_POST['funny_answer'])
+        ) {
+            $now = time();
+            $time = $_POST['funnyquestion_time'];
+            $hash = $_POST['funnyquestion_hash'];
+            $user_answer = $this->normalize_funnyanswer($_POST['funny_answer']);
+        } else {
+            return false;
+        }
+
+        if ($now - $time > $funnyquestion_timeout) {
+            return false;
+        } elseif ($now - $time < $funnyquestion_wait) {
+            return false;
+        }
+
+        foreach ($funny_questions as $question => $answers) {
+            if (!is_array($answers)) {
+                $answers = array($answers);
+            }
+            foreach ($answers as $answer) {
+                if ($this->normalize_funnyanswer($answer) == $user_answer
+                    && $hash == sha1($time . $question . $funnyquestion_hash)
+                ) {
+                    $this->set_funnycookie();
+                    return true;
+                }
+            }
+        }
+
+        return false;
+    }
+}
-- 
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