From f5d62f7157a629d8d1611d848be6e4167dd17075 Mon Sep 17 00:00:00 2001
From: alecpl <alec@alec.pl>
Date: Thu, 05 Jan 2012 04:51:41 -0500
Subject: [PATCH] - Fix bug in handling of base href and inline content (#1488290)
---
program/include/main.inc | 63 +++++++++++++++++++++++++++++++
1 files changed, 62 insertions(+), 1 deletions(-)
diff --git a/program/include/main.inc b/program/include/main.inc
index ad41a13..b16f020 100644
--- a/program/include/main.inc
+++ b/program/include/main.inc
@@ -2093,7 +2093,68 @@
public function callback($matches)
{
- return $matches[1] . '="' . make_absolute_url($matches[3], $this->base_url) . '"';
+ return $matches[1] . '="' . self::absolute_url($matches[3], $this->base_url) . '"';
+ }
+
+ public function replace($body)
+ {
+ return preg_replace_callback(array(
+ '/(src|background|href)=(["\']?)([^"\'\s]+)(\2|\s|>)/Ui',
+ '/(url\s*\()(["\']?)([^"\'\)\s]+)(\2)\)/Ui',
+ ),
+ array($this, 'callback'), $body);
+ }
+
+ /**
+ * Convert paths like ../xxx to an absolute path using a base url
+ *
+ * @param string $path Relative path
+ * @param string $base_url Base URL
+ *
+ * @return string Absolute URL
+ */
+ public static function absolute_url($path, $base_url)
+ {
+ $host_url = $base_url;
+ $abs_path = $path;
+
+ // check if path is an absolute URL
+ if (preg_match('/^[fhtps]+:\/\//', $path)) {
+ return $path;
+ }
+
+ // check if path is a content-id scheme
+ if (strpos($path, 'cid:') === 0) {
+ return $path;
+ }
+
+ // cut base_url to the last directory
+ if (strrpos($base_url, '/') > 7) {
+ $host_url = substr($base_url, 0, strpos($base_url, '/', 7));
+ $base_url = substr($base_url, 0, strrpos($base_url, '/'));
+ }
+
+ // $path is absolute
+ if ($path[0] == '/') {
+ $abs_path = $host_url.$path;
+ }
+ else {
+ // strip './' because its the same as ''
+ $path = preg_replace('/^\.\//', '', $path);
+
+ if (preg_match_all('/\.\.\//', $path, $matches, PREG_SET_ORDER)) {
+ foreach ($matches as $a_match) {
+ if (strrpos($base_url, '/')) {
+ $base_url = substr($base_url, 0, strrpos($base_url, '/'));
+ }
+ $path = substr($path, 3);
+ }
+ }
+
+ $abs_path = $base_url.'/'.$path;
+ }
+
+ return $abs_path;
}
}
--
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