Backwards compatibility for Zend

composer.json

@@ -44,7 +44,10 @@
     "symfony/validator": "^3.4",
     "tuupola/slim-jwt-auth": "^2.0",
     "wikimedia/composer-merge-plugin": "^1.4",
-    "zf1/zend-oauth": "^1.12"
+    "zf1/zend-gdata": "^1.12",
+    "zf1/zend-loader": "^1.12",
+    "zf1/zend-oauth": "^1.12",
+    "zf1/zend-registry": "^1.12"
   },
   "require-dev": {
     "codeception/codeception": "^2.0",

deprecated.php

@@ -20,3 +20,41 @@
 foreach ($saml2_class_names as $name) {
     class_alias("OneLogin\\Saml2\\" . $name, 'OneLogin_Saml2_' . $name);
 }
+
+if (!class_exists(OneLogin_Saml2_Auth::class)) {
+    /** @deprecated this is an alias for OneLogin\\Saml2 */
+    class OneLogin_Saml2_Auth {}
+    /** @deprecated this is an alias for OneLogin\\Saml2 */
+    class OneLogin_Saml2_AuthnRequest {}
+    /** @deprecated this is an alias for OneLogin\\Saml2 */
+    class OneLogin_Saml2_Constants {}
+    /** @deprecated this is an alias for OneLogin\\Saml2 */
+    class OneLogin_Saml2_Error {}
+    /** @deprecated this is an alias for OneLogin\\Saml2 */
+    class OneLogin_Saml2_ValidationError {}
+    /** @deprecated this is an alias for OneLogin\\Saml2 */
+    class OneLogin_Saml2_IdPMetadataParser {}
+    /** @deprecated this is an alias for OneLogin\\Saml2 */
+    class OneLogin_Saml2_LogoutRequest {}
+    /** @deprecated this is an alias for OneLogin\\Saml2 */
+    class OneLogin_Saml2_LogoutResponse {}
+    /** @deprecated this is an alias for OneLogin\\Saml2 */
+    class OneLogin_Saml2_Metadata {}
+    /** @deprecated this is an alias for OneLogin\\Saml2 */
+    class OneLogin_Saml2_Response {}
+    /** @deprecated this is an alias for OneLogin\\Saml2 */
+    class OneLogin_Saml2_Settings {}
+    /** @deprecated this is an alias for OneLogin\\Saml2 */
+    class OneLogin_Saml2_Utils {}
+}
+
+
+/**
+ * Backwards compatibility for Zend
+ */
+class_alias('SuiteCRM\\Zend_Oauth_Provider', 'Zend\\Oauth\\Provider');
+
+if (!class_exists(Provider::class)) {
+    /** @deprecated this is an alias for Zend_Oauth_Provider */
+    class Provider {}
+}