Increase unit test coverage of auth code

red/api/auth/tokens/index.js

@@ -0,0 +1,81 @@
+/**
+ * Copyright 2015 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 Sessions;
+
+function generateToken(length) {
+    var c = "ABCDEFGHIJKLMNOPQRSTUZWXYZabcdefghijklmnopqrstuvwxyz1234567890";
+    var token = [];
+    for (var i=0;i<length;i++) {
+        token.push(c[Math.floor(Math.random()*c.length)]);
+    }
+    return token.join("");
+}
+
+
+var sessionModule;
+
+function moduleSelector(aSettings) {
+    var toReturn;
+    if (aSettings.sessionStorageModule) {
+        if (typeof aSettings.sessionStorageModule === "string") {
+            // TODO: allow storage modules to be specified by absolute path
+            toReturn = require("./"+aSettings.sessionStorageModule);
+        } else {
+            toReturn = aSettings.sessionStorageModule;
+        }
+    } else {
+        toReturn = require("./localfilesystem");
+    }
+    return toReturn;
+}
+
+module.exports = {
+    init: function(settings) {
+        sessionModule = moduleSelector(settings);
+        sessionModule.init(settings);
+    },
+    get: function(token) {
+        return sessionModule.get(token).then(function(session) {
+            if (session && session.accessExpires < Date.now()) {
+                return sessionModule.delete(token).then(function() {
+                    return null;
+                });
+            } else {
+                return session;
+            }
+        })
+    },
+    create: function(user,client,scope) {
+        var accessToken = generateToken(128);
+        var session = {
+            user:user,
+            client:client,
+            scope:scope,
+            accessToken: accessToken,
+        };
+        return sessionModule.create(accessToken,session).then(function() {
+            return {
+                accessToken: accessToken,
+            }
+        });
+    },
+    revoke: function(token) {
+        return sessionModule.delete(token);
+    }
+}
+

red/api/auth/tokens/localfilesystem.js

@@ -0,0 +1,72 @@
+/**
+ * Copyright 2015 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 fs = require('fs');
+var when = require('when');
+var nodeFn = require('when/node/function');
+var fspath = require("path");
+
+var settings;
+var sessionsFile;
+
+var sessions = {};
+
+/** 
+ * Write content to a file using UTF8 encoding.
+ * This forces a fsync before completing to ensure
+ * the write hits disk.
+ */
+function writeFile(path,content) {
+    return when.promise(function(resolve,reject) {
+        var stream = fs.createWriteStream(path);
+        stream.on('open',function(fd) {
+            stream.end(content,'utf8',function() {
+                fs.fsync(fd,resolve);
+            });
+        });
+        stream.on('error',function(err) {
+            reject(err);
+        });
+    });
+}
+
+var api = module.exports = {
+    init: function(_settings) {
+        settings = _settings;
+        var userDir = settings.userDir || process.env.NODE_RED_HOME;
+        sessionsFile = fspath.join(userDir,".sessions.json");
+        
+        try {
+            sessions = JSON.parse(fs.readFileSync(sessionsFile,'utf8'));
+        } catch(err) {
+            sessions = {};
+        }
+        
+        return when.resolve();
+    },
+    
+    get: function(token) {
+        return when.resolve(sessions[token]);
+    },
+    create: function(token,session) {
+        sessions[token] = session;
+        return writeFile(sessionsFile,JSON.stringify(sessions));
+    },
+    delete: function(token) {
+        delete sessions[token];
+        return writeFile(sessionsFile,JSON.stringify(sessions));
+    }
+}