Fixed redirect issue when custom app url in use

Fixes #956 & #1048
Also added tests to cover this url logic.
Also removed debugbar during tests to maybe improve test speed.

app/helpers.php

@@ -92,10 +92,15 @@ function baseUrl($path, $forceAppDomain = false)
     if ($isFullUrl && !$forceAppDomain) {
         return $path;
     }
+
     $path = trim($path, '/');
+    $trimBase = rtrim(config('app.url'), '/');
 
     // Remove non-specified domain if forced and we have a domain
     if ($isFullUrl && $forceAppDomain) {
+        if (strpos($path, $trimBase) === 0) {
+            $path = trim(substr($path, strlen($trimBase) - 1));
+        }
         $explodedPath = explode('/', $path);
         $path = implode('/', array_splice($explodedPath, 3));
     }
@@ -105,7 +110,7 @@ function baseUrl($path, $forceAppDomain = false)
         return url($path);
     }
 
-    return rtrim(config('app.url'), '/') . '/' . $path;
+    return $trimBase . '/' . $path;
 }
 
 /**

phpunit.xml

@@ -42,5 +42,6 @@
         <env name="GOOGLE_AUTO_REGISTER" value=""/>
         <env name="GOOGLE_AUTO_CONFIRM_EMAIL" value=""/>
         <env name="APP_URL" value="http://bookstack.dev"/>
+        <env name="DEBUGBAR_ENABLED" value="false"/>
     </php>
 </phpunit>

tests/HelpersTest.php

@@ -0,0 +1,19 @@
+<?php namespace Tests;
+
+class HelpersTest extends TestCase
+{
+
+    public function test_base_url_takes_config_into_account()
+    {
+        config()->set('app.url', 'http://example.com/bookstack');
+        $result = baseUrl('/');
+        $this->assertEquals('http://example.com/bookstack/', $result);
+    }
+
+    public function test_base_url_takes_extra_path_into_account_on_forced_domain()
+    {
+        config()->set('app.url', 'http://example.com/bookstack');
+        $result = baseUrl('http://example.com/bookstack/', true);
+        $this->assertEquals('http://example.com/bookstack/', $result);
+    }
+}