pull out editor-client and editor-api

packages/node_modules/@node-red/editor-api/lib/auth/tokens.js

@@ -0,0 +1,110 @@
+/**
+ * Copyright JS Foundation and other contributors, http://js.foundation
+ *
+ * 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.
+ **/
+
+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 storage;
+
+var sessionExpiryTime
+
+var sessions = {};
+
+var loadedSessions = null;
+
+function expireSessions() {
+    var now = Date.now();
+    var modified = false;
+    for (var t in sessions) {
+        if (sessions.hasOwnProperty(t)) {
+            var session = sessions[t];
+            if (!session.hasOwnProperty("expires") || session.expires < now) {
+                delete sessions[t];
+                modified = true;
+            }
+        }
+    }
+    if (modified) {
+        return storage.saveSessions(sessions);
+    } else {
+        return Promise.resolve();
+    }
+}
+function loadSessions() {
+    if (loadedSessions === null) {
+        loadedSessions = storage.getSessions().then(function(_sessions) {
+             sessions = _sessions||{};
+             return expireSessions();
+        });
+    }
+    return loadedSessions;
+}
+
+module.exports = {
+    init: function(adminAuthSettings, _storage) {
+        storage = _storage;
+        sessionExpiryTime = adminAuthSettings.sessionExpiryTime || 604800; // 1 week in seconds
+        // At this point, storage will not have been initialised, so defer loading
+        // the sessions until there's a request for them.
+        loadedSessions = null;
+        return Promise.resolve();
+    },
+    get: function(token) {
+        return loadSessions().then(function() {
+            if (sessions[token]) {
+                if (sessions[token].expires < Date.now()) {
+                    return expireSessions().then(function() { return null });
+                }
+            }
+            return Promise.resolve(sessions[token]);
+        });
+    },
+    create: function(user,client,scope) {
+        return loadSessions().then(function() {
+            var accessToken = generateToken(128);
+
+            var accessTokenExpiresAt = Date.now() + (sessionExpiryTime*1000);
+
+            var session = {
+                user:user,
+                client:client,
+                scope:scope,
+                accessToken: accessToken,
+                expires: accessTokenExpiresAt
+            };
+            sessions[accessToken] = session;
+            return storage.saveSessions(sessions).then(function() {
+                return {
+                    accessToken: accessToken,
+                    expires_in: sessionExpiryTime
+                }
+            });
+        });
+    },
+    revoke: function(token) {
+        return loadSessions().then(function() {
+            delete sessions[token];
+            return storage.saveSessions(sessions);
+        });
+    }
+}