[CCSDK-28] populated the seed code for dgbuilder

[ccsdk/distribution.git] / dgbuilder / red / storage / index.js

diff --git a/dgbuilder/red/storage/index.js b/dgbuilder/red/storage/index.js
new file mode 100644 (file)
index 0000000..ba93962
--- /dev/null
+++ b/dgbuilder/red/storage/index.js
@@ -0,0 +1,107 @@
+/**
+ * Copyright 2013, 2014 IBM Corp.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ **/
+
+var when = require('when');
+
+var storageModule;
+var settingsAvailable;
+
+function moduleSelector(aSettings) {
+    var toReturn;
+    if (aSettings.storageModule) {
+        if (typeof aSettings.storageModule === "string") {
+            // TODO: allow storage modules to be specified by absolute path
+            toReturn = require("./"+aSettings.storageModule);
+        } else {
+            toReturn = aSettings.storageModule;
+        }
+    } else {
+        toReturn = require("./localfilesystem");
+    }
+    return toReturn;
+}
+
+function is_malicious(path) {
+    return path.indexOf('../') != -1 || path.indexOf('..\\') != -1;
+}
+
+var storageModuleInterface = {
+        init: function(settings) {
+            try {
+                storageModule = moduleSelector(settings);
+                settingsAvailable = storageModule.hasOwnProperty("getSettings") && storageModule.hasOwnProperty("saveSettings");
+            } catch (e) {
+                return when.reject(e);
+            }
+            return storageModule.init(settings);
+        },
+        getFlows: function() {
+            return storageModule.getFlows();
+        },
+        saveFlows: function(flows) {
+            return storageModule.saveFlows(flows);
+        },
+        getCredentials: function() {
+            return storageModule.getCredentials();
+        },
+        saveCredentials: function(credentials) {
+            return storageModule.saveCredentials(credentials);
+        },
+        getSettings: function() {
+            if (settingsAvailable) {
+                return storageModule.getSettings();
+            } else {
+                return when.resolve(null);
+            }
+        },
+        saveSettings: function(settings) {
+            if (settingsAvailable) {
+                return storageModule.saveSettings(settings);
+            } else {
+                return when.resolve();
+            }
+        },
+        /* Library Functions */
+        getAllFlows: function() {
+            return storageModule.getAllFlows();
+        },
+        getFlow: function(fn) {
+            if (is_malicious(fn)) {
+                return when.reject(new Error('forbidden flow name'));
+            }
+            return storageModule.getFlow(fn);
+        },
+        saveFlow: function(fn, data) {
+            if (is_malicious(fn)) {
+                return when.reject(new Error('forbidden flow name'));
+            }
+            return storageModule.saveFlow(fn, data);
+        },
+        getLibraryEntry: function(type, path) {
+            if (is_malicious(path)) {
+                return when.reject(new Error('forbidden flow name'));
+            }
+            return storageModule.getLibraryEntry(type, path);
+        },
+        saveLibraryEntry: function(type, path, meta, body) {
+            if (is_malicious(path)) {
+                return when.reject(new Error('forbidden flow name'));
+            }
+            return storageModule.saveLibraryEntry(type, path, meta, body);
+        }
+}
+
+module.exports = storageModuleInterface;