1 files changed, 30 insertions, 2 deletions

diff --git a/application/ApplicationUtils.php b/application/ApplicationUtils.php
index 94c49040..85dcbeeb 100644
--- a/application/ApplicationUtils.php
+++ b/application/ApplicationUtils.php
@@ -4,9 +4,13 @@
  */
 class ApplicationUtils
 {
+    /**
+     * @var string File containing the current version
+     */
+    public static $VERSION_FILE = 'shaarli_version.php';
+
     private static $GIT_URL = 'https://raw.githubusercontent.com/shaarli/Shaarli';
     private static $GIT_BRANCHES = array('latest', 'stable');
-    private static $VERSION_FILE = 'shaarli_version.php';
     private static $VERSION_START_TAG = '<?php /* ';
     private static $VERSION_END_TAG = ' */ ?>';
 
@@ -29,6 +33,30 @@ class ApplicationUtils
             return false;
         }
 
+        return $data;
+    }
+
+    /**
+     * Retrieve the version from a remote URL or a file.
+     *
+     * @param string $remote  URL or file to fetch.
+     * @param int    $timeout For URLs fetching.
+     *
+     * @return bool|string The version or false if it couldn't be retrieved.
+     */
+    public static function getVersion($remote, $timeout = 2)
+    {
+        if (startsWith($remote, 'http')) {
+            if (($data = static::getLatestGitVersionCode($remote, $timeout)) === false) {
+                return false;
+            }
+        } else {
+            if (! is_file($remote)) {
+                return false;
+            }
+            $data = file_get_contents($remote);
+        }
+
         return str_replace(
             array(self::$VERSION_START_TAG, self::$VERSION_END_TAG, PHP_EOL),
             array('', '', ''),
@@ -90,7 +118,7 @@ class ApplicationUtils
 
         // Late Static Binding allows overriding within tests
         // See http://php.net/manual/en/language.oop5.late-static-bindings.php
-        $latestVersion = static::getLatestGitVersionCode(
+        $latestVersion = static::getVersion(
             self::$GIT_URL . '/' . $branch . '/' . self::$VERSION_FILE
         );