From 70521d55a811347fa30f37187e43b8a1fd932e21 Mon Sep 17 00:00:00 2001
From: Evan Prodromou <evan@controlyourself.ca>
Date: Sat, 27 Jun 2009 07:37:58 -0700
Subject: log IP for API auth errors

---
 lib/util.php | 26 +++++++++++++++++++++++++-
 1 file changed, 25 insertions(+), 1 deletion(-)

(limited to 'lib')

diff --git a/lib/util.php b/lib/util.php
index c8da8c7dd..9c1af7a0d 100644
--- a/lib/util.php
+++ b/lib/util.php
@@ -1490,4 +1490,28 @@ function common_shorten_url($long_url)
     curl_close($curlh);
 
     return $short_url;
-}
\ No newline at end of file
+}
+
+function common_client_ip()
+{
+    if (!isset($_SERVER) || !array_key_exists('REQUEST_METHOD', $_SERVER)) {
+        return null;
+    }
+
+    if ($_SERVER['HTTP_X_FORWARDED_FOR']) {
+        if ($_SERVER['HTTP_CLIENT_IP']) {
+            $proxy = $_SERVER['HTTP_CLIENT_IP'];
+        } else {
+            $proxy = $_SERVER['REMOTE_ADDR'];
+        }
+        $ip = $_SERVER['HTTP_X_FORWARDED_FOR'];
+    } else {
+        if ($_SERVER['HTTP_CLIENT_IP']) {
+            $ip = $_SERVER['HTTP_CLIENT_IP'];
+        } else {
+            $ip = $_SERVER['REMOTE_ADDR'];
+        }
+    }
+
+    return array($ip, $proxy);
+}
-- 
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