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node-red/red/storage/index.js

91 lines
2.9 KiB
JavaScript

/**
* Copyright 2013 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;
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);
} 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);
},
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;