feat(CIE): Implement OIDC RP Service with login, callback, and session management

common/OidcRpConfig.h

@@ -0,0 +1,44 @@
+#pragma once
+
+#include <json/json.h>
+
+#include "common/OidcJwt.h"
+
+#include <string>
+#include <vector>
+
+namespace visione::oidc
+{
+struct RpProviderConfig
+{
+    std::string issuer;
+    std::string trustAnchor;
+    std::string profile;
+};
+
+struct RpConfig
+{
+    bool enabled{false};
+    std::string baseUrl;
+    std::string clientId;
+    std::string redirectUri;
+    std::string postLoginRedirectUri;
+    std::string organizationName;
+    std::string clientName;
+    std::vector<std::string> contacts;
+    std::string jwksPath;
+    std::string federationJwksPath;
+    std::vector<std::string> trustAnchors;
+    std::vector<RpProviderConfig> providers;
+    std::vector<Jwk> federationJwks;
+    std::vector<Jwk> coreJwks;
+    Json::Value trustMark;
+};
+
+RpConfig loadRpConfig();
+Json::Value rpMetadataDocument(const RpConfig &config);
+Json::Value rpPublicJwksDocument(const RpConfig &config);
+Json::Value entityConfigurationDocument(const RpConfig &config);
+std::optional<RpProviderConfig> findProviderConfig(const RpConfig &config,
+                                                   const std::string &provider);
+}  // namespace visione::oidc