From a3130d2c2f27052710d4dbd51d0001190b19b383 Mon Sep 17 00:00:00 2001
From: ArthurHoaro <arthur@hoa.ro>
Date: Fri, 25 Aug 2017 19:47:57 +0200
Subject: Make  work behind a reverse proxy

Without HTTP_X_FORWARDED_PORT check,  might be set to false even though the user is using HTTPS, thus disabling Firefox Social block display
---
 application/HttpUtils.php | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)

(limited to 'application')

diff --git a/application/HttpUtils.php b/application/HttpUtils.php
index 88a1efdb..00835966 100644
--- a/application/HttpUtils.php
+++ b/application/HttpUtils.php
@@ -401,3 +401,31 @@ function getIpAddressFromProxy($server, $trustedIps)
 
     return array_pop($ips);
 }
+
+/**
+ * Returns true if Shaarli's currently browsed in HTTPS.
+ * Supports reverse proxies (if the headers are correctly set).
+ *
+ * @param array $server $_SERVER.
+ *
+ * @return bool true if HTTPS, false otherwise.
+ */
+function is_https($server)
+{
+
+    if (isset($server['HTTP_X_FORWARDED_PORT'])) {
+        // Keep forwarded port
+        if (strpos($server['HTTP_X_FORWARDED_PORT'], ',') !== false) {
+            $ports = explode(',', $server['HTTP_X_FORWARDED_PORT']);
+            $port = trim($ports[0]);
+        } else {
+            $port = $server['HTTP_X_FORWARDED_PORT'];
+        }
+
+        if ($port == '443') {
+            return true;
+        }
+    }
+
+    return ! empty($server['HTTPS']);
+}
-- 
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