From 2b03ca63d06ec5da45c887ef7cb3daa35a8642f7 Mon Sep 17 00:00:00 2001
From: h5p9sl <21267024+h5p9sl@users.noreply.github.com>
Date: Thu, 13 May 2021 22:27:06 -0600
Subject: Disallow empty post content when creating threads

---
 create_thread.php | 17 +++++++++++++++--
 1 file changed, 15 insertions(+), 2 deletions(-)

diff --git a/create_thread.php b/create_thread.php
index a203b39..976bd9f 100644
--- a/create_thread.php
+++ b/create_thread.php
@@ -27,7 +27,7 @@ if (!Session::get()->is_signed_in()) {
 	$categories = get_all_categories();
 
 	if (count($categories) == 0) {
-		echo 'There are no categories to post to!';
+		trigger_error('There are no categories to post to!');
 	} else {
 		echo '<select name="thread_cat">';
 
@@ -52,8 +52,21 @@ if ($_SERVER['REQUEST_METHOD'] == 'POST') {
 	$thread_subject = filter_input(INPUT_POST, 'thread_subject', FILTER_SANITIZE_STRING);
 	$thread_cat = filter_input(INPUT_POST, 'thread_cat', FILTER_SANITIZE_NUMBER_INT);
 
+	$errors = array();
 	if (empty($thread_subject) or !$thread_subject) {
-		trigger_error('Thread subject cannot be empty');
+		$errors[] = 'Thread subject cannot be empty';
+	}
+	if (empty($post_content) or !$post_content) {
+		$errors[] = 'Thread body cannot be empty';
+	}
+
+	if (!empty($errors)) {
+		$errstr = 'Please check the following problems: <ul>';
+		foreach ($errors as $err) {
+			$errstr .= '<li>' . $err . '</li>';
+		}
+		$errstr .= '</ul>';
+		trigger_error($errstr);
 	} else {
 		$thread_id = create_thread($thread_subject, $thread_cat);
 		create_post($post_content, $thread_id, $thread_cat);
-- 
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