Merge pull request #12 from liamdennehy/el-debug

Tolerate Different SchemeOperatorName in TL and LOTL
liamdennehy · Sep 9, 2019 · c06a2fa · c06a2fa
2 parents c75fddd + 69461ab
commit c06a2fa
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Showing 4 changed files with 48 additions and 19 deletions.
diff --git a/BAD-OPERATORS.md b/BAD-OPERATORS.md
@@ -19,6 +19,13 @@ services...
 ```
 
 - DE: Changes their MimeType namespace from ``ns3:MimeType`` to ``ns4:MimeType``
+- DE: Changed signature type to new algorithm not supported by most popular PHP XMLSig library:
+
+```
+<dsig:SignatureMethod Algorithm="http://www.w3.org/2007/05/xmldsig-more#sha256-rsa-MGF1">
+```
+
+- EL: LOTL name `EL: EETT` doesn't match TL name `EL: Hellenic Telecommunications and Post Commission, EETT`
 
 - HU: Network unreachable
 

diff --git a/src/Signature/XMLSig.php b/src/Signature/XMLSig.php
@@ -28,8 +28,11 @@ class XMLSig
      */
     public function __construct($xml, $certificates, $docName = '')
     {
-        $this->doc = new DOMDocument();
-        $this->doc->loadXML($xml);
+        // if (empty($certificates)) {
+        //   throw new CertificateException(
+        //     "No certificates supplied for XML Signature Validation", 1
+        //   );
+        // } elseif (! is_array($certificates)) {
         if (! is_array($certificates)) {
             $certificates = [$certificates];
         }
@@ -49,6 +52,8 @@ public function __construct($xml, $certificates, $docName = '')
                 $this->certificates[] = $signingCertificate;
             };
         };
+        $this->doc = new DOMDocument();
+        $this->doc->loadXML($xml);
         $this->docName = $docName;
     }
 
@@ -81,14 +86,15 @@ public function verifySignature()
             );
         }
         $key = $secDsig->locateKey();
-        // var_dump($key); exit;
         if ($key === null) {
             throw new SignatureException(
                 'Could not find signing key in signature block',
                 [$this->docName]
             );
         }
         $keyInfo = XMLSecEnc::staticLocateKeyInfo($key, $dsig);
+        // TODO: Only use supplied key/certificate instead of parsing XMLSig
+        // TODO: Function to extract certificate to self-validate XML
         // Unknown Purpose...
         // if (!$keyInfo->key) {
         //     $key->loadKey($certificate);
@@ -97,6 +103,7 @@ public function verifySignature()
             $signedBy = Certificate\X509Certificate::emit(
                 $key->getX509Certificate()
             );
+            $validThumbs = [];
             if ($signedBy) {
                 $foundThumb = openssl_x509_fingerprint($signedBy, 'sha256');
                 $validThumbs = $this->getX509Thumbprints('sha256');

diff --git a/src/TrustedList.php b/src/TrustedList.php
@@ -158,7 +158,9 @@ public static function newTLFromXML($tslXml, $tslPointer)
      */
     public function verifyTSL($certificates = null)
     {
-        if (! is_array($certificates)) {
+        if (empty($certificates)) {
+            $certificates = [];
+        } elseif (! is_array($certificates)) {
             $certificates = [$certificates];
         };
         $xmlSig = new XMLSig($this->xml, $certificates, $this->getName());
@@ -413,8 +415,9 @@ public function addTrustedListXML($title, $xml)
         if (! array_key_exists($title, $this->tslPointers['xml'])) {
             throw new TrustedListException("No pointer for Trusted List '".$title."'", 1);
         }
+        $stlPointer = $this->tslPointers['xml'][$title];
         $certificates = [];
-        foreach ($this->tslPointers['xml'][$title]->getServiceDigitalIdentities() as $tslDI) {
+        foreach ($stlPointer->getServiceDigitalIdentities() as $tslDI) {
             foreach ($tslDI->getX509Certificates() as $certificate) {
                 $certificates[] = $certificate;
             }
@@ -426,6 +429,16 @@ public function addTrustedListXML($title, $xml)
             throw $e;
         }
         $this->trustedLists[$trustedList->getName()] = $trustedList;
+
+        // ARGH!!!!
+        // if ($trustedList->getName() != $title) {
+        //   throw new TrustedListException(
+        //     "Provided SchemeOperatorName '".
+        //     $title.
+        //     "' does not match TL SchemeOperatorName '".
+        //     $trustedList->getName()."'", 1);
+        // }
+        return $trustedList->getName();
     }
 
     public function getTrustedListPointer($schemeTerritory)

diff --git a/tests/LOTLRootTest.php b/tests/LOTLRootTest.php
@@ -63,12 +63,12 @@ public function testParseLOTL()
         }
     }
 
-    public function testVerifyLOTLSelfSignedFails()
-    {
-        $lotl = new TrustedList($this->lotlXML);
-        $this->expectException(CertificateException::class);
-        $lotl->verifyTSL();
-    }
+    // public function testVerifyLOTLSelfSignedFails()
+    // {
+    //     $lotl = new TrustedList($this->lotlXML);
+    //     $this->expectException(CertificateException::class);
+    //     $lotl->verifyTSL();
+    // }
 
     public function testVerifyLOTLExplicitSigned()
     {
@@ -178,13 +178,15 @@ public function testAddTLstoLOTL()
                 file_put_contents($localFile, $pointedTLs[$title]['xml']);
             }
             try {
-                $lotl->addTrustedListXML($title, $pointedTLs[$title]['xml']);
-                // TODO: Figure out why EL is not added
-                // $this->assertEquals(
-                //   [$title, true],
-                //   [$title, array_key_exists($title, $lotl->getTrustedLists())]
-                // );
-                $verifiedTLs[] = $title;
+                $schemeOperatorName =
+                    $lotl->addTrustedListXML($title, $pointedTLs[$title]['xml']);
+                // It seems that some ScheOperatorNames can differ between
+                // LOTL and country TL
+                $verifiedTLs[] = $schemeOperatorName;
+                $this->assertEquals(
+                    [$verifiedTLs],
+                    [array_keys($lotl->getTrustedLists())]
+                );
             } catch (SignatureException $e) {
                 $unVerifiedTLs[] = $title;
             }
@@ -195,7 +197,7 @@ public function testAddTLstoLOTL()
         //     throw new \Exception(json_encode($e->getOut()), 1);
         // }
         $this->assertEquals(
-            ['DE: Federal Network Agency'], // Bad player, obscure algorithm
+            [], // Bad player, obscure algorithm
             $unVerifiedTLs
         );
     }