feature #29821 [VarDumper] add caster for OpenSSL X.509 resources (ni…

…colas-grekas)

This PR was merged into the 4.3-dev branch.

Discussion
----------

[VarDumper] add caster for OpenSSL X.509 resources

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

I needed that today, so here we are:

![image](https://user-images.githubusercontent.com/243674/50846515-a0b49e80-136f-11e9-9ebd-5d570c01df26.png)

Commits
-------

5e88dc6 [VarDumper] add caster for OpenSSL X.509 resources

src/Symfony/Component/VarDumper/Caster/ConstStub.php

@@ -20,10 +20,10 @@
  */
 class ConstStub extends Stub
 {
-    public function __construct(string $name, $value)
+    public function __construct(string $name, $value = null)
     {
         $this->class = $name;
-        $this->value = $value;
+        $this->value = 1 < \func_num_args() ? $value : $name;
     }
 
     public function __toString()

src/Symfony/Component/VarDumper/Caster/ResourceCaster.php

@@ -69,4 +69,30 @@ public static function castMysqlLink($h, array $a, Stub $stub, $isNested)
 
         return $a;
     }
+
+    public static function castOpensslX509($h, array $a, Stub $stub, $isNested)
+    {
+        $stub->cut = -1;
+        $info = openssl_x509_parse($h, false);
+
+        $pin = openssl_pkey_get_public($h);
+        $pin = openssl_pkey_get_details($pin)['key'];
+        $pin = \array_slice(explode("\n", $pin), 1, -2);
+        $pin = base64_decode(implode('', $pin));
+        $pin = base64_encode(hash('sha256', $pin, true));
+
+        $a += array(
+            'subject' => new EnumStub(array_intersect_key($info['subject'], array('organizationName' => true, 'commonName' => true))),
+            'issuer' => new EnumStub(array_intersect_key($info['issuer'], array('organizationName' => true, 'commonName' => true))),
+            'expiry' => new ConstStub(date(\DateTime::ISO8601, $info['validTo_time_t']), $info['validTo_time_t']),
+            'fingerprint' => new EnumStub(array(
+                'md5' => new ConstStub(wordwrap(strtoupper(openssl_x509_fingerprint($h, 'md5')), 2, ':', true)),
+                'sha1' => new ConstStub(wordwrap(strtoupper(openssl_x509_fingerprint($h, 'sha1')), 2, ':', true)),
+                'sha256' => new ConstStub(wordwrap(strtoupper(openssl_x509_fingerprint($h, 'sha256')), 2, ':', true)),
+                'pin-sha256' => new ConstStub($pin),
+            )),
+        );
+
+        return $a;
+    }
 }

src/Symfony/Component/VarDumper/Cloner/AbstractCloner.php

@@ -136,6 +136,7 @@ abstract class AbstractCloner implements ClonerInterface
         ':pgsql result' => array('Symfony\Component\VarDumper\Caster\PgSqlCaster', 'castResult'),
         ':process' => array('Symfony\Component\VarDumper\Caster\ResourceCaster', 'castProcess'),
         ':stream' => array('Symfony\Component\VarDumper\Caster\ResourceCaster', 'castStream'),
+        ':OpenSSL X.509' => array('Symfony\Component\VarDumper\Caster\ResourceCaster', 'castOpensslX509'),
         ':persistent stream' => array('Symfony\Component\VarDumper\Caster\ResourceCaster', 'castStream'),
         ':stream-context' => array('Symfony\Component\VarDumper\Caster\ResourceCaster', 'castStreamContext'),
         ':xml' => array('Symfony\Component\VarDumper\Caster\XmlResourceCaster', 'castXml'),
@@ -176,7 +177,7 @@ public function __construct(array $casters = null)
     public function addCasters(array $casters)
     {
         foreach ($casters as $type => $callback) {
-            $closure = &$this->casters[strtolower($type)][];
+            $closure = &$this->casters['' === $type || ':' === $type[0] ? $type : strtolower($type)][];
             $closure = $callback instanceof \Closure ? $callback : static function (...$args) use ($callback, &$closure) {
                 return ($closure = \Closure::fromCallable($callback))(...$args);
             };