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Merge branch 'feature/support-encrypted-nameid' of github.com:joonlab…
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…s/php-saml into joonlabs-feature/support-encrypted-nameid
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pitbulk committed Sep 29, 2024
1 parent c889f6b commit 72aa4a0
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Showing 3 changed files with 32 additions and 19 deletions.
42 changes: 23 additions & 19 deletions src/Saml2/Response.php
Original file line number Diff line number Diff line change
Expand Up @@ -61,6 +61,13 @@ class Response
*/
public $encrypted = false;

/**
* The response contains an encrypted nameId in the assertion.
*
* @var bool
*/
public $encryptedNameId = false;

/**
* After validation, if it fail this var has the cause of the problem
*
Expand Down Expand Up @@ -227,14 +234,12 @@ public function isValid($requestId = null)
);
}

if ($security['wantNameIdEncrypted']) {
$encryptedIdNodes = $this->_queryAssertion('/saml:Subject/saml:EncryptedID/xenc:EncryptedData');
if ($encryptedIdNodes->length != 1) {
throw new ValidationError(
"The NameID of the Response is not encrypted and the SP requires it",
ValidationError::NO_ENCRYPTED_NAMEID
);
}
$this->encryptedNameId = $this->encryptedNameId || $this->_queryAssertion('/saml:Subject/saml:EncryptedID/xenc:EncryptedData')->length > 0;
if (!$this->encryptedNameId && $security['wantNameIdEncrypted']) {
throw new ValidationError(
"The NameID of the Response is not encrypted and the SP requires it",
ValidationError::NO_ENCRYPTED_NAMEID
);
}

// Validate Conditions element exists
Expand Down Expand Up @@ -392,17 +397,6 @@ public function isValid($requestId = null)
}
}

// Detect case not supported
if ($this->encrypted) {
$encryptedIDNodes = Utils::query($this->decryptedDocument, '/samlp:Response/saml:Assertion/saml:Subject/saml:EncryptedID');
if ($encryptedIDNodes->length > 0) {
throw new ValidationError(
'SAML Response that contains an encrypted Assertion with encrypted nameId is not supported.',
ValidationError::NOT_SUPPORTED
);
}
}

if (empty($signedElements) || (!$hasSignedResponse && !$hasSignedAssertion)) {
throw new ValidationError(
'No Signature found. SAML Response rejected',
Expand Down Expand Up @@ -1163,6 +1157,16 @@ protected function decryptAssertion(\DomNode $dom)
if ($check === false) {
throw new Exception('Error: string from decrypted assertion could not be loaded into a XML document');
}

// check if the decrypted assertion contains an encryptedID
$encryptedID = $decrypted->getElementsByTagName('EncryptedID')->item(0);

if ($encryptedID) {
// decrypt the encryptedID
$this->encryptedNameId = true;
$this->decryptAssertion($encryptedID);
}

if ($encData->parentNode instanceof DOMDocument) {
return $decrypted;
} else {
Expand Down
Original file line number Diff line number Diff line change
@@ -0,0 +1 @@
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8 changes: 8 additions & 0 deletions tests/src/OneLogin/Saml2/ResponseTest.php
Original file line number Diff line number Diff line change
Expand Up @@ -1814,4 +1814,12 @@ public function testIsValidSignUsingX509certMulti()
$response = new Response($settings, $xml);
$this->assertTrue($response->isValid());
}

public function testCanGetEncryptedNameIdInEncryptedAssertion()
{
$xml = file_get_contents(TEST_ROOT . '/data/responses/response_encrypted_nameid_encrypted_assertion.xml.base64');
$response = new Response($this->_settings, $xml);
$this->assertTrue($response->isValid());
$this->assertSame('[email protected]', $response->getNameId());
}
}

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