Reload certificate chain during certificate reload

GrigoryPervakov · Mar 25, 2024 · 6b50f5b · 6b50f5b
1 parent d4063e3
commit 6b50f5b
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Showing 5 changed files with 103 additions and 4 deletions.
diff --git a/src/Server/CertificateReloader.cpp b/src/Server/CertificateReloader.cpp
@@ -30,8 +30,22 @@ int CertificateReloader::setCertificate(SSL * ssl)
     if (!current)
         return -1;
 
-    SSL_use_certificate(ssl, const_cast<X509 *>(current->cert.certificate()));
-    SSL_use_PrivateKey(ssl, const_cast<EVP_PKEY *>(static_cast<const EVP_PKEY *>(current->key)));
+    if (current->certs_chain.size() < 1)
+        return -1;
+
+    int ret;
+    ret = SSL_clear_chain_certs(ssl);
+    if (!ret)
+        return ret;
+    ret = SSL_use_certificate(ssl, const_cast<X509 *>(current->certs_chain[0].certificate()));
+    if (!ret)
+        return ret;
+    for (auto cert = current->certs_chain.begin() + 1; cert != current->certs_chain.end(); cert++) {
+        ret = SSL_add1_chain_cert(ssl, const_cast<X509 *>(cert->certificate()));
+        if (!ret)
+        return ret;
+    }
+    ret = SSL_use_PrivateKey(ssl, const_cast<EVP_PKEY *>(static_cast<const EVP_PKEY *>(current->key)));
 
     int err = SSL_check_private_key(ssl);
     if (err != 1)
@@ -100,7 +114,7 @@ void CertificateReloader::tryLoad(const Poco::Util::AbstractConfiguration & conf
 
 
 CertificateReloader::Data::Data(std::string cert_path, std::string key_path, std::string pass_phrase)
-    : cert(cert_path), key(/* public key */ "", /* private key */ key_path, pass_phrase)
+    : certs_chain(Poco::Crypto::X509Certificate::readPEM(cert_path)), key(/* public key */ "", /* private key */ key_path, pass_phrase)
 {
 }
 

diff --git a/src/Server/CertificateReloader.h b/src/Server/CertificateReloader.h
@@ -70,7 +70,7 @@ class CertificateReloader
 
     struct Data
     {
-        Poco::Crypto::X509Certificate cert;
+        Poco::Crypto::X509Certificate::List certs_chain;
         Poco::Crypto::EVPPKey key;
 
         Data(std::string cert_path, std::string key_path, std::string pass_phrase);

diff --git a/tests/integration/test_reload_certificate/configs/WithChain.crt b/tests/integration/test_reload_certificate/configs/WithChain.crt
@@ -0,0 +1,43 @@
+-----BEGIN CERTIFICATE-----
+MIIDkzCCAnugAwIBAgIUSChEeHqJus9jzKmD/L3Tw0x4OwcwDQYJKoZIhvcNAQEL
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+sWBrbBaEyw==
+-----END CERTIFICATE-----
+-----BEGIN CERTIFICATE-----
+MIIDYzCCAkugAwIBAgIUR0PldYYSk3DAifgb600kvqjaCAIwDQYJKoZIhvcNAQEL
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+hGBJrQylAw==
+-----END CERTIFICATE-----
diff --git a/tests/integration/test_reload_certificate/configs/WithChain.key b/tests/integration/test_reload_certificate/configs/WithChain.key
@@ -0,0 +1,27 @@
+-----BEGIN RSA PRIVATE KEY-----
+MIIEpQIBAAKCAQEAzP/9LOgF/fPCfOh88V/eYqxmvXCSH2NuFAwV1ZDt4ERIsI9V
+H26b6cQnMAAzLhXYILCZaaVmt6vjzSf3qFcHZd4BtFl2mada3Lr+pbcXUAFLYHzA
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+yxhB7RYi1tQsXHbR1iyT5hH0ZlV7s0XIKRU4U8MP05av099+++YKhks=
+-----END RSA PRIVATE KEY-----
diff --git a/tests/integration/test_reload_certificate/test.py b/tests/integration/test_reload_certificate/test.py
@@ -13,6 +13,8 @@
         "configs/second.key",
         "configs/ECcert.crt",
         "configs/ECcert.key",
+        "configs/WithChain.crt",
+        "configs/WithChain.key",
         "configs/WithPassPhrase.crt",
         "configs/WithPassPhrase.key",
         "configs/cert.xml",
@@ -158,3 +160,16 @@ def test_cert_with_pass_phrase():
     check_certificate_switch(
         "first", "WithPassPhrase", pass_phrase_second=pass_phrase_for_cert
     )
+
+
+def test_chain_reload():
+    """Check cert chain reload"""
+    check_certificate_switch("first", "WithChain")
+    assert (
+        node.exec_in_container([
+            "bash",
+            "-c",
+            "openssl s_client -showcerts -servername localhost -connect localhost:8443 </dev/null 2>/dev/null | grep 'BEGIN CERTIFICATE' | wc -l",
+        ])
+        == "2\n"
+    )