Identify tenants by the "Origin" header (#21)

* Add origin ID MW

* Test origin ID MW

* Test origin ID MW with early identification

* Fix code style (php-cs-fixer)

* Fix PHPStan errors

* Add getDomain() to domain ID MW, simplify origin ID MW

* Fix code style (php-cs-fixer)

* Rename InitializeTenancyByOrigin to InitializeTenancyByOriginHeader

* Add onFail test

* Stop throwing the exception in getDomain()

* FIx merge

* Improve origin identification test file

* Clean up test

---------

Co-authored-by: PHP CS Fixer <phpcsfixer@example.com>

src/Middleware/InitializeTenancyByDomain.php

@@ -31,10 +31,12 @@ class InitializeTenancyByDomain extends IdentificationMiddleware implements Usab
             return $next($request);
         }
 
+        $domain = $this->getDomain($request);
+
         return $this->initializeTenancy(
             $request,
             $next,
-            $request->getHost()
+            $domain
         );
     }
 
@@ -44,6 +46,11 @@ class InitializeTenancyByDomain extends IdentificationMiddleware implements Usab
      */
     public function requestHasTenant(Request $request): bool
     {
-        return ! in_array($request->host(), config('tenancy.central_domains'));
+        return ! in_array($this->getDomain($request), config('tenancy.central_domains'));
+    }
+
+    public function getDomain(Request $request): string
+    {
+        return $request->getHost();
     }
 }

src/Middleware/InitializeTenancyByDomainOrSubdomain.php

@@ -22,7 +22,7 @@ class InitializeTenancyByDomainOrSubdomain extends InitializeTenancyBySubdomain
             return $next($request);
         }
 
-        $domain = $request->getHost();
+        $domain = $this->getDomain($request);
 
         if ($this->isSubdomain($domain)) {
             $domain = $this->makeSubdomain($domain);

src/Middleware/InitializeTenancyByOriginHeader.php

@@ -0,0 +1,15 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Stancl\Tenancy\Middleware;
+
+use Illuminate\Http\Request;
+
+class InitializeTenancyByOriginHeader extends InitializeTenancyByDomainOrSubdomain
+{
+    public function getDomain(Request $request): string
+    {
+        return $request->header('Origin', '');
+    }
+}

src/Middleware/InitializeTenancyBySubdomain.php

@@ -35,7 +35,7 @@ class InitializeTenancyBySubdomain extends InitializeTenancyByDomain
             return $next($request);
         }
 
-        $subdomain = $this->makeSubdomain($request->getHost());
+        $subdomain = $this->makeSubdomain($this->getDomain($request));
 
         if (is_object($subdomain) && $subdomain instanceof Exception) {
             $onFail = static::$onFail ?? function ($e) {