fix sending a single target parameter

controllers/API.php

@@ -102,9 +102,17 @@ class API {
     $found = [];
     foreach($xpath->query('//a[@href]') as $href) {
       $url = $href->getAttribute('href');
-      $domain = parse_url($url, PHP_URL_HOST);
-      if($url == $target || $domain == $target_domain || str_ends_with($domain, '.' . $target_domain)) {
-        $found[$url] = null;
+      if($target) {
+        # target parameter was provided
+        if($url == $target) {
+          $found[$url] = null;
+        }
+      } elseif($target_domain) {
+        # target_domain parameter was provided
+        $domain = parse_url($url, PHP_URL_HOST);
+        if($domain && ($domain == $target_domain || str_ends_with($domain, '.' . $target_domain))) {
+          $found[$url] = null;
+        }
       }
     }
 

tests/APITest.php

@@ -169,6 +169,18 @@ class APITest extends PHPUnit_Framework_TestCase {
     $this->_assertQueued('http://source.example.com/basictest', 'http://target.example.com', $data->location);
   }
 
+  public function testTargetQueuesOnlyTargetWebmention() {
+    $this->_createExampleAccount();
+
+    $response = $this->webmention(['token'=>'a','source'=>'http://source.example.com/multipletest','target'=>'http://target.example.com']);
+    $this->assertEquals(201, $response->getStatusCode());
+    $data = json_decode($response->getContent());
+    $this->assertEquals(false, property_exists($data, 'error'));
+    $this->assertEquals('queued', $data->status);
+    $this->_assertQueued('http://source.example.com/multipletest', 'http://target.example.com', $data->location);
+    $this->_assertNotQueued('http://source.example.com/multipletest', '/relativelink');
+  }
+
   public function testTargetDomainQueuesOneWebmention() {
     $this->_createExampleAccount();