bug #17461 [Yaml] tag for dumped PHP objects must be a local one (xabbuh)

This PR was merged into the 2.3 branch.

Discussion
----------

[Yaml] tag for dumped PHP objects must be a local one

| Q             | A
| ------------- | ---
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | #16877
| License       | MIT
| Doc PR        |

Commits
-------

9d03478 tag for dumped PHP objects must be a local one

Author: fabpot

Inline.php

@@ -102,7 +102,7 @@ public static function dump($value, $exceptionOnInvalidType = false, $objectSupp
                 return 'null';
             case is_object($value):
                 if ($objectSupport) {
-                    return '!!php/object:'.serialize($value);
+                    return '!php/object:'.serialize($value);
                 }
 
                 if ($exceptionOnInvalidType) {
@@ -434,6 +434,16 @@ private static function evaluateScalar($scalar, $references = array())
                         return (string) substr($scalar, 5);
                     case 0 === strpos($scalar, '! '):
                         return (int) self::parseScalar(substr($scalar, 2));
+                    case 0 === strpos($scalar, '!php/object:'):
+                        if (self::$objectSupport) {
+                            return unserialize(substr($scalar, 12));
+                        }
+
+                        if (self::$exceptionOnInvalidType) {
+                            throw new ParseException('Object support when parsing a YAML file has been disabled.');
+                        }
+
+                        return;
                     case 0 === strpos($scalar, '!!php/object:'):
                         if (self::$objectSupport) {
                             return unserialize(substr($scalar, 13));

Tests/DumperTest.php

@@ -181,7 +181,7 @@ public function testObjectSupportEnabled()
     {
         $dump = $this->dumper->dump(array('foo' => new A(), 'bar' => 1), 0, 0, false, true);
 
-        $this->assertEquals('{ foo: !!php/object:O:30:"Symfony\Component\Yaml\Tests\A":1:{s:1:"a";s:3:"foo";}, bar: 1 }', $dump, '->dump() is able to dump objects');
+        $this->assertEquals('{ foo: !php/object:O:30:"Symfony\Component\Yaml\Tests\A":1:{s:1:"a";s:3:"foo";}, bar: 1 }', $dump, '->dump() is able to dump objects');
     }
 
     public function testObjectSupportDisabledButNoExceptions()

Tests/ParserTest.php

@@ -426,24 +426,46 @@ public function testObjectSupportEnabled()
 bar: 1
 EOF;
         $this->assertEquals(array('foo' => new B(), 'bar' => 1), $this->parser->parse($input, false, true), '->parse() is able to parse objects');
-    }
 
-    public function testObjectSupportDisabledButNoExceptions()
-    {
         $input = <<<EOF
-foo: !!php/object:O:30:"Symfony\Tests\Component\Yaml\B":1:{s:1:"b";s:3:"foo";}
+foo: !php/object:O:30:"Symfony\Component\Yaml\Tests\B":1:{s:1:"b";s:3:"foo";}
 bar: 1
 EOF;
+        $this->assertEquals(array('foo' => new B(), 'bar' => 1), $this->parser->parse($input, false, true), '->parse() is able to parse objects');
+    }
 
+    /**
+     * @dataProvider invalidDumpedObjectProvider
+     */
+    public function testObjectSupportDisabledButNoExceptions($input)
+    {
         $this->assertEquals(array('foo' => null, 'bar' => 1), $this->parser->parse($input), '->parse() does not parse objects');
     }
 
     /**
+     * @dataProvider invalidDumpedObjectProvider
      * @expectedException \Symfony\Component\Yaml\Exception\ParseException
      */
-    public function testObjectsSupportDisabledWithExceptions()
+    public function testObjectsSupportDisabledWithExceptions($yaml)
+    {
+        $this->parser->parse($yaml, true, false);
+    }
+
+    public function invalidDumpedObjectProvider()
     {
-        $this->parser->parse('foo: !!php/object:O:30:"Symfony\Tests\Component\Yaml\B":1:{s:1:"b";s:3:"foo";}', true, false);
+        $yamlTag = <<<EOF
+foo: !!php/object:O:30:"Symfony\Tests\Component\Yaml\B":1:{s:1:"b";s:3:"foo";}
+bar: 1
+EOF;
+        $localTag = <<<EOF
+foo: !php/object:O:30:"Symfony\Tests\Component\Yaml\B":1:{s:1:"b";s:3:"foo";}
+bar: 1
+EOF;
+
+        return array(
+            'yaml-tag' => array($yamlTag),
+            'local-tag' => array($localTag),
+        );
     }
 
     /**