Added base and default SSO Adapter

no-issue

core/server/adapters/sso/Base.js

@@ -0,0 +1,8 @@
+module.exports = class SSOBase {
+    constructor() {
+        Object.defineProperty(this, 'requiredFns', {
+            value: ['getRequestCredentials', 'getIdentityFromCredentials', 'getUserForIdentity'],
+            writable: false
+        });
+    }
+};

core/server/adapters/sso/Default.js

@@ -0,0 +1,19 @@
+const Base = require('./Base');
+
+module.exports = class DefaultSSOAdapter extends Base {
+    constructor() {
+        super();
+    }
+
+    async getRequestCredentials() {
+        return null;
+    }
+
+    async getIdentityFromCredentials() {
+        return null;
+    }
+
+    async getUserForIdentity() {
+        return null;
+    }
+};

core/server/config/defaults.json

@@ -16,6 +16,11 @@
     "paths": {
         "contentPath": "content/"
     },
+    "adapters": {
+        "sso": {
+            "active": "Default"
+        }
+    },
     "storage": {
         "active": "LocalFileStorage"
     },

core/server/services/adapter-manager/index.js

@@ -13,6 +13,7 @@ const adapterManager = new AdapterManager({
 
 adapterManager.registerAdapter('storage', require('ghost-storage-base'));
 adapterManager.registerAdapter('scheduling', require('../../adapters/scheduling/SchedulingBase'));
+adapterManager.registerAdapter('sso', require('../../adapters/sso/Base'));
 
 module.exports = {
     getAdapter(adapterType) {