allow a configured base for cache keys

2 files changed, 8 insertions, 1 deletions

diff --git a/lib/common.php b/lib/common.php
index ab61c812f..51204cede 100644
--- a/lib/common.php
+++ b/lib/common.php
@@ -152,6 +152,7 @@ $config =
         'memcached' =>
         array('enabled' => false,
               'server' => 'localhost',
+              'base' => null,
               'port' => 11211),
  		'ping' =>
         array('notify' => array()),
diff --git a/lib/util.php b/lib/util.php
index 49c6ae108..1d5708bd6 100644
--- a/lib/util.php
+++ b/lib/util.php
@@ -1322,7 +1322,13 @@ function common_session_token()
 
 function common_cache_key($extra)
 {
-    return 'laconica:' . common_keyize(common_config('site', 'name')) . ':' . $extra;
+    $base_key = common_config('memcached', 'base');
+
+    if (empty($base_key)) {
+        $base_key = common_keyize(common_config('site', 'name'));
+    }
+
+    return 'laconica:' . $base_key . ':' . $extra;
 }
 
 function common_keyize($str)