[client/common] add c interface for retrieving certificate data

canonical · May 31, 2023 · b1b1eb9 · b1b1eb9
1 parent 25cefba
commit b1b1eb9
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Showing 3 changed files with 32 additions and 0 deletions.
diff --git a/include/multipass/cli/client_common.h b/include/multipass/cli/client_common.h
@@ -79,5 +79,6 @@ void post_setup();
 
 // used by Flutter through Dart FFI
 extern "C" const char* get_server_address();
+extern "C" struct KeyCertificatePair get_cert_pair();
 
 #endif // MULTIPASS_CLIENT_COMMON_H
diff --git a/include/multipass/ssl_cert_provider.h b/include/multipass/ssl_cert_provider.h
@@ -43,4 +43,12 @@ class SSLCertProvider : public CertProvider
     KeyCertificatePair key_cert_pair;
 };
 } // namespace multipass
+
+// used by Flutter through Dart FFI
+extern "C" struct KeyCertificatePair
+{
+    const char* pem_cert;
+    const char* pem_cert_key;
+};
+
 #endif // MULTIPASS_SSL_CERT_PROVIDER_H
diff --git a/src/client/common/client_common.cpp b/src/client/common/client_common.cpp
@@ -294,3 +294,26 @@ catch (...)
     return nullptr;
 }
 
+extern "C" struct KeyCertificatePair get_cert_pair()
+try
+{
+
+    auto cert_provider = mp::client::get_cert_provider(mp::client::get_server_address());
+    auto cert = cert_provider->PEM_certificate();
+    auto key = cert_provider->PEM_signing_key();
+    struct KeyCertificatePair pair
+    {
+        .pem_cert = strdup(cert.c_str()), .pem_cert_key = strdup(key.c_str()),
+    };
+    return pair;
+}
+catch (const std::exception& e)
+{
+    mpl::log(mpl::Level::error, "client", fmt::format("failed getting certificate pair: {}", e.what()));
+    return KeyCertificatePair{nullptr, nullptr};
+}
+catch (...)
+{
+    mpl::log(mpl::Level::error, "client", "failed getting certificate pair");
+    return KeyCertificatePair{nullptr, nullptr};
+}