From e5c06f81e065aad0c711ca3baf578b3c0a4fd8d8 Mon Sep 17 00:00:00 2001
From: Cflip <36554078+cflip@users.noreply.github.com>
Date: Thu, 28 Jan 2021 10:59:12 -0700
Subject: embed links and images/videos

---
 thread.php | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

(limited to 'thread.php')

diff --git a/thread.php b/thread.php
index 0ba4906..7eb0e88 100644
--- a/thread.php
+++ b/thread.php
@@ -5,8 +5,8 @@ include_once 'includes/db_inc.php';
 
 function add_quote($dbc, $thread_id, $matches) {
 	foreach ($matches as $match) {
-		$id = (int) filter_var($match, FILTER_SANITIZE_NUMBER_INT);
-		$sql = "SELECT post_content, post_author, user_name FROM posts LEFT JOIN users ON post_author = user_id WHERE post_thread = " . $thread_id . " LIMIT 1 OFFSET " . $id - 1;
+		$id = (int) filter_var($match, FILTER_SANITIZE_NUMBER_INT) - 1;
+		$sql = "SELECT post_content, post_author, user_name FROM posts LEFT JOIN users ON post_author = user_id WHERE post_thread = " . $thread_id . " LIMIT 1 OFFSET " . $id;
 		$result = mysqli_query($dbc, $sql);
 
 		if (!$result) {
@@ -15,7 +15,7 @@ function add_quote($dbc, $thread_id, $matches) {
 
 		$reply = mysqli_fetch_assoc($result);
 
-		return '<blockquote><a href="#' . $id .'">Quote from ' . $reply['user_name'] . '</a><br>' . $reply['post_content'] . '</blockquote>';
+		return '<blockquote><a href="#' . $id + 1 .'">Quote from ' . $reply['user_name'] . '</a><br>' . $reply['post_content'] . '</blockquote>';
 	}
 }
 
@@ -64,6 +64,14 @@ if (mysqli_num_rows($result) == 0) {
 			return add_quote($dbc, $thread_id, $matches);
 		}, $post_content);
 
+		$post_content =  preg_replace(
+			"/\s*[a-zA-Z\/\/:\.]*youtu(be.com\/watch\?v=|.be\/)([a-zA-Z0-9\-_]+)([a-zA-Z0-9\/\*\-\_\?\&\;\%\=\.]*)/i",
+			'<br><iframe class="youtube-embed" src="//www.youtube.com/embed/$2" allowfullscreen></iframe>', $post_content);
+
+		$post_content = preg_replace('/(https?:\/\/[^ ]+?(?:\.jpg|\.png|\.gif))/', '<img class="image-embed" src="$1" alt="$1" />', $post_content);
+
+		$post_content = preg_replace('@\b(http(s)?://)?([^\s]*?(?:\.[a-z\d?=/_-]+)+)(?![^<]*?(?:</\w+>|/?>))@i', '<a href="http$2://$3">$0</a>', $post_content);
+
 		echo '<td class="post-content">' . $post_content . '</td></tr>';
 
 		$post_index++;
-- 
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