[BrowserKit] fixed BC break done recently

Author: fabpot

src/Symfony/Component/BrowserKit/CookieJar.php

@@ -37,6 +37,11 @@ public function set(Cookie $cookie)
     /**
      * Gets a cookie by name.
      *
+     * You should never use an empty domain, but if you do so,
+     * this method returns the first cookie for the given name/path
+     * (this behavior ensures a BC behavior with previous versions of
+     * Symfony).
+     *
      * @param string $name   The cookie name
      * @param string $path   The cookie path
      * @param string $domain The cookie domain
@@ -49,12 +54,27 @@ public function get($name, $path = '/', $domain = null)
     {
         $this->flushExpiredCookies();
 
-        return isset($this->cookieJar[$domain][$path][$name]) ? $this->cookieJar[$domain][$path][$name] : null;
+        if (!empty($domain)) {
+            return isset($this->cookieJar[$domain][$path][$name]) ? $this->cookieJar[$domain][$path][$name] : null;
+        }
+
+        // avoid relying on this behavior that is mainly here for BC reasons
+        foreach ($this->cookieJar as $domain => $cookies) {
+            if (isset($cookies[$path][$name])) {
+                return $cookies[$path][$name];
+            }
+        }
+
+        return null;
     }
 
     /**
      * Removes a cookie by name.
      *
+     * You should never use an empty domain, but if you do so,
+     * all cookies for the given name/path expire (this behavior
+     * ensures a BC behavior with previous versions of Symfony).
+     *
      * @param string $name   The cookie name
      * @param string $path   The cookie path
      * @param string $domain The cookie domain
@@ -67,13 +87,23 @@ public function expire($name, $path = '/', $domain = null)
             $path = '/';
         }
 
-        unset($this->cookieJar[$domain][$path][$name]);
+        if (empty($domain)) {
+            // an empty domain means any domain
+            // this should never happen but it allows for a better BC
+            $domains = array_keys($this->cookieJar);
+        } else {
+            $domains = array($domain);
+        }
 
-        if (empty($this->cookieJar[$domain][$path])) {
-            unset($this->cookieJar[$domain][$path]);
+        foreach ($domains as $domain) {
+            unset($this->cookieJar[$domain][$path][$name]);
 
-            if (empty($this->cookieJar[$domain])) {
-                unset($this->cookieJar[$domain]);
+            if (empty($this->cookieJar[$domain][$path])) {
+                unset($this->cookieJar[$domain][$path]);
+
+                if (empty($this->cookieJar[$domain])) {
+                    unset($this->cookieJar[$domain]);
+                }
             }
         }
     }