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391 rivejä
12 KiB
391 rivejä
12 KiB
const startTime = Date.now();
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const fs = require('fs');
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const ueberDB = require('../src/node_modules/ueberdb2');
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const mysql = require('../src/node_modules/ueberdb2/node_modules/mysql');
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const async = require('../src/node_modules/async');
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const Changeset = require('ep_etherpad-lite/static/js/Changeset');
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const randomString = require('ep_etherpad-lite/static/js/pad_utils').randomString;
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const AttributePool = require('ep_etherpad-lite/static/js/AttributePool');
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const settingsFile = process.argv[2];
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const sqlOutputFile = process.argv[3];
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// stop if the settings file is not set
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if (!settingsFile || !sqlOutputFile) {
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console.error('Use: node convert.js $SETTINGSFILE $SQLOUTPUT');
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process.exit(1);
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}
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log('read settings file...');
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// read the settings file and parse the json
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const settings = JSON.parse(fs.readFileSync(settingsFile, 'utf8'));
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log('done');
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log('open output file...');
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const sqlOutput = fs.openSync(sqlOutputFile, 'w');
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const sql = 'SET CHARACTER SET UTF8;\n' +
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'CREATE TABLE IF NOT EXISTS `store` ( \n' +
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'`key` VARCHAR( 100 ) NOT NULL , \n' +
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'`value` LONGTEXT NOT NULL , \n' +
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'PRIMARY KEY ( `key` ) \n' +
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') ENGINE = INNODB;\n' +
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'START TRANSACTION;\n\n';
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fs.writeSync(sqlOutput, sql);
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log('done');
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const etherpadDB = mysql.createConnection({
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host: settings.etherpadDB.host,
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user: settings.etherpadDB.user,
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password: settings.etherpadDB.password,
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database: settings.etherpadDB.database,
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port: settings.etherpadDB.port,
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});
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// get the timestamp once
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const timestamp = Date.now();
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let padIDs;
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async.series([
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// get all padids out of the database...
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function (callback) {
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log('get all padIds out of the database...');
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etherpadDB.query('SELECT ID FROM PAD_META', [], (err, _padIDs) => {
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padIDs = _padIDs;
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callback(err);
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});
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},
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function (callback) {
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log('done');
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// create a queue with a concurrency 100
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const queue = async.queue((padId, callback) => {
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convertPad(padId, (err) => {
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incrementPadStats();
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callback(err);
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});
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}, 100);
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// set the step callback as the queue callback
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queue.drain = callback;
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// add the padids to the worker queue
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for (let i = 0, length = padIDs.length; i < length; i++) {
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queue.push(padIDs[i].ID);
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}
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},
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], (err) => {
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if (err) throw err;
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// write the groups
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let sql = '';
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for (const proID in proID2groupID) {
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const groupID = proID2groupID[proID];
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const subdomain = proID2subdomain[proID];
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sql += `REPLACE INTO store VALUES (${etherpadDB.escape(`group:${groupID}`)}, ${etherpadDB.escape(JSON.stringify(groups[groupID]))});\n`;
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sql += `REPLACE INTO store VALUES (${etherpadDB.escape(`mapper2group:subdomain:${subdomain}`)}, ${etherpadDB.escape(groupID)});\n`;
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}
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// close transaction
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sql += 'COMMIT;';
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// end the sql file
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fs.writeSync(sqlOutput, sql, undefined, 'utf-8');
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fs.closeSync(sqlOutput);
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log('finished.');
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process.exit(0);
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});
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function log(str) {
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console.log(`${(Date.now() - startTime) / 1000}\t${str}`);
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}
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let padsDone = 0;
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function incrementPadStats() {
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padsDone++;
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if (padsDone % 100 == 0) {
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const averageTime = Math.round(padsDone / ((Date.now() - startTime) / 1000));
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log(`${padsDone}/${padIDs.length}\t${averageTime} pad/s`);
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}
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}
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var proID2groupID = {};
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var proID2subdomain = {};
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var groups = {};
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function convertPad(padId, callback) {
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const changesets = [];
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const changesetsMeta = [];
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const chatMessages = [];
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const authors = [];
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let apool;
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let subdomain;
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let padmeta;
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async.series([
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// get all needed db values
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function (callback) {
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async.parallel([
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// get the pad revisions
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function (callback) {
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const sql = 'SELECT * FROM `PAD_CHAT_TEXT` WHERE NUMID = (SELECT `NUMID` FROM `PAD_CHAT_META` WHERE ID=?)';
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etherpadDB.query(sql, [padId], (err, results) => {
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if (!err) {
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try {
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// parse the pages
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for (let i = 0, length = results.length; i < length; i++) {
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parsePage(chatMessages, results[i].PAGESTART, results[i].OFFSETS, results[i].DATA, true);
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}
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} catch (e) { err = e; }
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}
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callback(err);
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});
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},
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// get the chat entries
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function (callback) {
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const sql = 'SELECT * FROM `PAD_REVS_TEXT` WHERE NUMID = (SELECT `NUMID` FROM `PAD_REVS_META` WHERE ID=?)';
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etherpadDB.query(sql, [padId], (err, results) => {
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if (!err) {
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try {
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// parse the pages
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for (let i = 0, length = results.length; i < length; i++) {
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parsePage(changesets, results[i].PAGESTART, results[i].OFFSETS, results[i].DATA, false);
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}
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} catch (e) { err = e; }
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}
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callback(err);
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});
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},
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// get the pad revisions meta data
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function (callback) {
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const sql = 'SELECT * FROM `PAD_REVMETA_TEXT` WHERE NUMID = (SELECT `NUMID` FROM `PAD_REVMETA_META` WHERE ID=?)';
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etherpadDB.query(sql, [padId], (err, results) => {
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if (!err) {
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try {
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// parse the pages
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for (let i = 0, length = results.length; i < length; i++) {
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parsePage(changesetsMeta, results[i].PAGESTART, results[i].OFFSETS, results[i].DATA, true);
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}
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} catch (e) { err = e; }
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}
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callback(err);
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});
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},
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// get the attribute pool of this pad
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function (callback) {
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const sql = 'SELECT `JSON` FROM `PAD_APOOL` WHERE `ID` = ?';
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etherpadDB.query(sql, [padId], (err, results) => {
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if (!err) {
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try {
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apool = JSON.parse(results[0].JSON).x;
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} catch (e) { err = e; }
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}
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callback(err);
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});
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},
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// get the authors informations
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function (callback) {
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const sql = 'SELECT * FROM `PAD_AUTHORS_TEXT` WHERE NUMID = (SELECT `NUMID` FROM `PAD_AUTHORS_META` WHERE ID=?)';
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etherpadDB.query(sql, [padId], (err, results) => {
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if (!err) {
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try {
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// parse the pages
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for (let i = 0, length = results.length; i < length; i++) {
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parsePage(authors, results[i].PAGESTART, results[i].OFFSETS, results[i].DATA, true);
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}
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} catch (e) { err = e; }
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}
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callback(err);
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});
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},
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// get the pad information
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function (callback) {
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const sql = 'SELECT JSON FROM `PAD_META` WHERE ID=?';
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etherpadDB.query(sql, [padId], (err, results) => {
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if (!err) {
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try {
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padmeta = JSON.parse(results[0].JSON).x;
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} catch (e) { err = e; }
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}
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callback(err);
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});
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},
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// get the subdomain
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function (callback) {
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// skip if this is no proPad
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if (padId.indexOf('$') == -1) {
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callback();
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return;
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}
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// get the proID out of this padID
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const proID = padId.split('$')[0];
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const sql = 'SELECT subDomain FROM pro_domains WHERE ID = ?';
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etherpadDB.query(sql, [proID], (err, results) => {
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if (!err) {
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subdomain = results[0].subDomain;
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}
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callback(err);
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});
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},
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], callback);
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},
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function (callback) {
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// saves all values that should be written to the database
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const values = {};
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// this is a pro pad, let's convert it to a group pad
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if (padId.indexOf('$') != -1) {
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const padIdParts = padId.split('$');
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const proID = padIdParts[0];
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const padName = padIdParts[1];
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let groupID;
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// this proID is not converted so far, do it
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if (proID2groupID[proID] == null) {
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groupID = `g.${randomString(16)}`;
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// create the mappers for this new group
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proID2groupID[proID] = groupID;
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proID2subdomain[proID] = subdomain;
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groups[groupID] = {pads: {}};
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}
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// use the generated groupID;
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groupID = proID2groupID[proID];
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// rename the pad
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padId = `${groupID}$${padName}`;
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// set the value for this pad in the group
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groups[groupID].pads[padId] = 1;
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}
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try {
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const newAuthorIDs = {};
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const oldName2newName = {};
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// replace the authors with generated authors
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// we need to do that cause where the original etherpad saves pad local authors, the new (lite) etherpad uses them global
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for (var i in apool.numToAttrib) {
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var key = apool.numToAttrib[i][0];
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const value = apool.numToAttrib[i][1];
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// skip non authors and anonymous authors
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if (key != 'author' || value == '') continue;
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// generate new author values
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const authorID = `a.${randomString(16)}`;
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const authorColorID = authors[i].colorId || Math.floor(Math.random() * (exports.getColorPalette().length));
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const authorName = authors[i].name || null;
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// overwrite the authorID of the attribute pool
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apool.numToAttrib[i][1] = authorID;
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// write the author to the database
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values[`globalAuthor:${authorID}`] = {colorId: authorColorID, name: authorName, timestamp};
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// save in mappers
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newAuthorIDs[i] = authorID;
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oldName2newName[value] = authorID;
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}
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// save all revisions
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for (var i = 0; i < changesets.length; i++) {
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values[`pad:${padId}:revs:${i}`] = {changeset: changesets[i],
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meta: {
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author: newAuthorIDs[changesetsMeta[i].a],
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timestamp: changesetsMeta[i].t,
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atext: changesetsMeta[i].atext || undefined,
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}};
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}
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// save all chat messages
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for (var i = 0; i < chatMessages.length; i++) {
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values[`pad:${padId}:chat:${i}`] = {text: chatMessages[i].lineText,
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userId: oldName2newName[chatMessages[i].userId],
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time: chatMessages[i].time};
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}
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// generate the latest atext
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const fullAPool = (new AttributePool()).fromJsonable(apool);
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const keyRev = Math.floor(padmeta.head / padmeta.keyRevInterval) * padmeta.keyRevInterval;
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let atext = changesetsMeta[keyRev].atext;
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let curRev = keyRev;
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while (curRev < padmeta.head) {
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curRev++;
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const changeset = changesets[curRev];
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atext = Changeset.applyToAText(changeset, atext, fullAPool);
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}
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values[`pad:${padId}`] = {atext,
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pool: apool,
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head: padmeta.head,
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chatHead: padmeta.numChatMessages};
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} catch (e) {
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console.error(`Error while converting pad ${padId}, pad skipped`);
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console.error(e.stack ? e.stack : JSON.stringify(e));
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callback();
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return;
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}
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let sql = '';
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for (var key in values) {
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sql += `REPLACE INTO store VALUES (${etherpadDB.escape(key)}, ${etherpadDB.escape(JSON.stringify(values[key]))});\n`;
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}
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fs.writeSync(sqlOutput, sql, undefined, 'utf-8');
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callback();
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},
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], callback);
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}
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/**
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* This parses a Page like Etherpad uses them in the databases
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* The offsets describes the length of a unit in the page, the data are
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* all values behind each other
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*/
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function parsePage(array, pageStart, offsets, data, json) {
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let start = 0;
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const lengths = offsets.split(',');
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for (let i = 0; i < lengths.length; i++) {
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let unitLength = lengths[i];
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// skip empty units
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if (unitLength == '') continue;
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// parse the number
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unitLength = Number(unitLength);
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// cut the unit out of data
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const unit = data.substr(start, unitLength);
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// put it into the array
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array[pageStart + i] = json ? JSON.parse(unit) : unit;
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// update start
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start += unitLength;
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}
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}
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