pad.libre-service.eu-etherpad/src/node/db/ReadOnlyManager.js
Ray Bellis 5192a0c498 db/ReadOnlyManager.js: completed conversion
Requires temporary hack within `Pad.remove()` to allow for the lack of
callback on the rewritten version.
2019-01-30 16:19:51 +00:00

65 lines
1.9 KiB
JavaScript

/**
* 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 db = require("./DB");
var randomString = require("../utils/randomstring");
/**
* returns a read only id for a pad
* @param {String} padId the id of the pad
*/
exports.getReadOnlyId = async function (padId)
{
// check if there is a pad2readonly entry
let readOnlyId = await db.get("pad2readonly:" + padId);
// there is no readOnly Entry in the database, let's create one
if (readOnlyId == null) {
readOnlyId = "r." + randomString(16);
db.set("pad2readonly:" + padId, readOnlyId);
db.set("readonly2pad:" + readOnlyId, padId);
}
return readOnlyId;
}
/**
* returns the padId for a read only id
* @param {String} readOnlyId read only id
*/
exports.getPadId = function(readOnlyId)
{
return db.get("readonly2pad:" + readOnlyId);
}
/**
* returns the padId and readonlyPadId in an object for any id
* @param {String} padIdOrReadonlyPadId read only id or real pad id
*/
exports.getIds = async function(id) {
let readonly = (id.indexOf("r.") === 0);
// Might be null, if this is an unknown read-only id
let readOnlyPadId = readonly ? id : await exports.getReadOnlyId(id);
let padId = readonly ? await exports.getPadId(id) : id;
return { readOnlyPadId, padId, readonly };
}