The Big Renaming - etherpad is now an NPM module

src/node/db/ReadOnlyManager.js

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+/**
+ * The ReadOnlyManager manages the database and rendering releated to read only pads
+ */
+
+/*
+ * 2011 Peter 'Pita' Martischka (Primary Technology Ltd)
+ *
+ * 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 CommonCode = require('../utils/common_code');
+var ERR = require("async-stacktrace");
+var db = require("./DB").db;
+var async = require("async");
+var randomString = CommonCode.require('/pad_utils').randomString;
+
+/**
+ * returns a read only id for a pad
+ * @param {String} padId the id of the pad
+ */
+exports.getReadOnlyId = function (padId, callback)
+{  
+  var readOnlyId;
+  
+  async.waterfall([
+    //check if there is a pad2readonly entry
+    function(callback)
+    {
+      db.get("pad2readonly:" + padId, callback);
+    },
+    function(dbReadOnlyId, callback)
+    {
+      //there is no readOnly Entry in the database, let's create one
+      if(dbReadOnlyId == null)
+      {
+        readOnlyId = "r." + randomString(16);
+        
+        db.set("pad2readonly:" + padId, readOnlyId);
+        db.set("readonly2pad:" + readOnlyId, padId);
+      }
+      //there is a readOnly Entry in the database, let's take this one
+      else
+      {
+        readOnlyId = dbReadOnlyId;
+      }
+      
+      callback();
+    }
+  ], function(err)
+  {
+    if(ERR(err, callback)) return;
+    //return the results
+    callback(null, readOnlyId);
+  })
+}
+
+/**
+ * returns a the padId for a read only id
+ * @param {String} readOnlyId read only id
+ */
+exports.getPadId = function(readOnlyId, callback)
+{
+  db.get("readonly2pad:" + readOnlyId, callback);
+}