From e3c7200b6f75e169b516c78b1f6ae383fd886ae0 Mon Sep 17 00:00:00 2001
From: zotlabs <mike@macgirvin.com>
Date: Thu, 25 Jan 2018 16:16:55 -0800
Subject: don't do any bbcode translation within code blocks (except baseurl,
 observer, and linefeeds)

---
 include/bbcode.php | 42 ++++++++++++++++++++++++++++--------------
 1 file changed, 28 insertions(+), 14 deletions(-)

(limited to 'include')

diff --git a/include/bbcode.php b/include/bbcode.php
index de32bd57a..2b8274c0f 100644
--- a/include/bbcode.php
+++ b/include/bbcode.php
@@ -610,11 +610,23 @@ function bb_observer($Text) {
 	return $Text;
 }
 
+function bb_code_protect($s) {
+	return 'b64.^9e%.' . base64_encode($s) . '.b64.$9e%';
+}
+
+function bb_code_unprotect($s) {
+	return preg_replace_callback('|b64\.\^9e\%\.(.*?)\.b64\.\$9e\%|ism','bb_code_unprotect_sub',$s);
+}
+
+function bb_code_unprotect_sub($match) {
+	return base64_decode($match[1]);
+}
+
 function bb_code($match) {
 	if(strpos($match[0], "<br />"))
-		return '<code>' . trim($match[1]) . '</code>';
+		return '<code>' . bb_code_protect(trim($match[1])) . '</code>';
 	else
-		return '<code class="inline-code">' . trim($match[1]) . '</code>';
+		return '<code class="inline-code">' . bb_code_protect(trim($match[1])) . '</code>';
 }
 
 function bb_code_options($match) {
@@ -628,11 +640,11 @@ function bb_code_options($match) {
 	} else {
 		$style = "";
 	}
-	return '<code class="'. $class .'" style="'. $style .'">' . trim($match[2]) . '</code>';
+	return '<code class="'. $class .'" style="'. $style .'">' . bb_code_protect(trim($match[2])) . '</code>';
 }
 
 function bb_highlight($match) {
-	return text_highlight($match[2],strtolower($match[1]));
+	return bb_code_protect(text_highlight($match[2],strtolower($match[1])));
 }
 
 function bb_fixtable_lf($match) {
@@ -822,6 +834,17 @@ function bbcode($Text, $options = []) {
 
 	$Text = str_replace(array("\t", "  "), array("&nbsp;&nbsp;&nbsp;&nbsp;", "&nbsp;&nbsp;"), $Text);
 
+
+	// Check for [code] text
+	if (strpos($Text,'[code]') !== false) {
+		$Text = preg_replace_callback("/\[code\](.*?)\[\/code\]/ism", 'bb_code', $Text);
+	}
+
+	// Check for [code options] text
+	if (strpos($Text,'[code ') !== false) {
+		$Text = preg_replace_callback("/\[code(.*?)\](.*?)\[\/code\]/ism", 'bb_code_options', $Text);
+	}
+
 	// Set up the parameters for a URL search string
 	$URLSearchString = "^\[\]";
 	// Set up the parameters for a MAIL search string
@@ -1062,16 +1085,6 @@ function bbcode($Text, $options = []) {
 		$Text = preg_replace("/\[font=(.*?)\](.*?)\[\/font\]/sm", "<span style=\"font-family: $1;\">$2</span>", $Text);
 	}
 
-	// Check for [code] text
-	if (strpos($Text,'[code]') !== false) {
-		$Text = preg_replace_callback("/\[code\](.*?)\[\/code\]/ism", 'bb_code', $Text);
-	}
-
-	// Check for [code options] text
-	if (strpos($Text,'[code ') !== false) {
-		$Text = preg_replace_callback("/\[code(.*?)\](.*?)\[\/code\]/ism", 'bb_code_options', $Text);
-	}
-
 
 	if(strpos($Text,'[/summary]') !== false) {
 		$Text = preg_replace_callback("/^(.*?)\[summary\](.*?)\[\/summary\](.*?)$/ism", 'bb_summary', $Text);
@@ -1288,6 +1301,7 @@ function bbcode($Text, $options = []) {
 
 	// replace escaped links in code= blocks
 	$Text = str_replace('%eY9-!','http', $Text);
+	$Text = bb_code_unprotect($Text);
 
 	$Text = preg_replace('/\[\&amp\;([#a-z0-9]+)\;\]/', '&$1;', $Text);
 
-- 
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