Pull <atom:author> info as well as <activity:actor> when we have an old-style Activit...

[quix0rs-gnu-social.git] / lib / activityutils.php

diff --git a/lib/activityutils.php b/lib/activityutils.php
index c85a3db5560f0ba8ac7c8490da532bd7c8533416..a7e99fb11e32b91762649247fb51a2b80c9d3b42 100644 (file)
--- a/lib/activityutils.php
+++ b/lib/activityutils.php
@@ -240,4 +240,26 @@ class ActivityUtils
             throw new ClientException(_("Can't handle embedded Base64 content yet."));
         }
     }
+
+    /**
+     * Is this a valid URI for remote profile/notice identification?
+     * Does not have to be a resolvable URL.
+     * @param string $uri
+     * @return boolean
+     */
+    static function validateUri($uri)
+    {
+        if (Validate::uri($uri)) {
+            return true;
+        }
+
+        // Possibly an upstream bug; tag: URIs aren't validated properly
+        // unless you explicitly ask for them. All other schemes are accepted
+        // for basic URI validation without asking.
+        if (Validate::uri($uri, array('allowed_scheme' => array('tag')))) {
+            return true;
+        }
+
+        return false;
+    }
 }