[1.8.0] Tenant redirect (#103)

composer.json

@@ -17,7 +17,7 @@
     "require-dev": {
         "vlucas/phpdotenv": "^3.3",
         "laravel/framework": "5.8.*",
-        "orchestra/testbench": "~3.8",
+        "orchestra/testbench-browser-kit": "~3.8",
         "league/flysystem-aws-s3-v3": "~1.0",
         "phpunit/phpcov": "^6.0"
     },

src/TenancyServiceProvider.php

@@ -7,6 +7,7 @@ use Stancl\Tenancy\Commands\Seed;
 use Illuminate\Cache\CacheManager;
 use Stancl\Tenancy\Commands\Install;
 use Stancl\Tenancy\Commands\Migrate;
+use Illuminate\Http\RedirectResponse;
 use Illuminate\Support\Facades\Route;
 use Stancl\Tenancy\Commands\Rollback;
 use Illuminate\Support\ServiceProvider;
@@ -47,6 +48,21 @@ class TenancyServiceProvider extends ServiceProvider
         ]);
 
         $this->app->register(TenantRouteServiceProvider::class);
+
+        $this->registerTenantRedirectMacro();
+    }
+
+    public function registerTenantRedirectMacro()
+    {
+        RedirectResponse::macro('tenant', function (string $domain) {
+            // replace first occurance of hostname fragment with $domain
+            $url = $this->getTargetUrl();
+            $hostname = \parse_url($url, PHP_URL_HOST);
+            $position = \strpos($url, $hostname);
+            $this->setTargetUrl(\substr_replace($url, $domain, $position, \strlen($hostname)));
+
+            return $this;
+        });
     }
 
     /**

tests/TenantRedirectMacroTest.php

@@ -0,0 +1,23 @@
+<?php
+
+namespace Stancl\Tenancy\Tests;
+
+use Route;
+
+class TenantRedirectMacroTest extends TestCase
+{
+    /** @test */
+    public function tenant_redirect_macro_replaces_only_the_hostname()
+    {
+        Route::get('/foobar', function () {
+            return 'Foo';
+        })->name('home');
+
+        Route::get('/redirect', function () {
+            return redirect()->route('home')->tenant('abcd');
+        });
+
+        $this->get('/redirect')
+            ->assertRedirect('http://abcd/foobar');
+    }
+}