453 lines
13 KiB
JavaScript
453 lines
13 KiB
JavaScript
var startTime = Date.now();
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var fs = require("fs");
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var ueberDB = require("../src/node_modules/ueberdb2");
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var mysql = require("../src/node_modules/ueberdb2/node_modules/mysql");
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var async = require("../src/node_modules/async");
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var Changeset = require("ep_etherpad-lite/static/js/Changeset");
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var randomString = require('ep_etherpad-lite/static/js/pad_utils').randomString;
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var AttributePool = require("ep_etherpad-lite/static/js/AttributePool");
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var settingsFile = process.argv[2];
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var 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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{
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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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var 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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var sqlOutput = fs.openSync(sqlOutputFile, "w");
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var 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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var 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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var timestamp = Date.now();
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var 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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{
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log("get all padIds out of the database...");
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etherpadDB.query("SELECT ID FROM PAD_META", [], function(err, _padIDs)
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{
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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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{
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log("done");
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//create a queue with a concurrency 100
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var queue = async.queue(function (padId, callback)
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{
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convertPad(padId, function(err)
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{
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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(var i=0,length=padIDs.length;i<length;i++)
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{
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queue.push(padIDs[i].ID);
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}
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}
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], function(err)
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{
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if(err) throw err;
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//write the groups
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var sql = "";
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for(var proID in proID2groupID)
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{
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var groupID = proID2groupID[proID];
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var 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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{
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console.log((Date.now() - startTime)/1000 + "\t" + str);
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}
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var padsDone = 0;
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function incrementPadStats()
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{
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padsDone++;
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if(padsDone%100 == 0)
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{
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var 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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{
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var changesets = [];
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var changesetsMeta = [];
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var chatMessages = [];
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var authors = [];
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var apool;
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var subdomain;
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var 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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{
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async.parallel([
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//get the pad revisions
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function(callback)
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{
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var sql = "SELECT * FROM `PAD_CHAT_TEXT` WHERE NUMID = (SELECT `NUMID` FROM `PAD_CHAT_META` WHERE ID=?)";
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etherpadDB.query(sql, [padId], function(err, results)
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{
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if(!err)
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{
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try
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{
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//parse the pages
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for(var i=0,length=results.length;i<length;i++)
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{
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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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{
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var sql = "SELECT * FROM `PAD_REVS_TEXT` WHERE NUMID = (SELECT `NUMID` FROM `PAD_REVS_META` WHERE ID=?)";
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etherpadDB.query(sql, [padId], function(err, results)
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{
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if(!err)
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{
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try
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{
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//parse the pages
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for(var i=0,length=results.length;i<length;i++)
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{
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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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{
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var sql = "SELECT * FROM `PAD_REVMETA_TEXT` WHERE NUMID = (SELECT `NUMID` FROM `PAD_REVMETA_META` WHERE ID=?)";
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etherpadDB.query(sql, [padId], function(err, results)
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{
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if(!err)
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{
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try
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{
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//parse the pages
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for(var i=0,length=results.length;i<length;i++)
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{
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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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{
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var sql = "SELECT `JSON` FROM `PAD_APOOL` WHERE `ID` = ?";
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etherpadDB.query(sql, [padId], function(err, results)
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{
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if(!err)
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{
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try
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{
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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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{
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var sql = "SELECT * FROM `PAD_AUTHORS_TEXT` WHERE NUMID = (SELECT `NUMID` FROM `PAD_AUTHORS_META` WHERE ID=?)";
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etherpadDB.query(sql, [padId], function(err, results)
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{
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if(!err)
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{
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try
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{
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//parse the pages
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for(var i=0, length=results.length;i<length;i++)
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{
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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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{
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var sql = "SELECT JSON FROM `PAD_META` WHERE ID=?";
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etherpadDB.query(sql, [padId], function(err, results)
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{
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if(!err)
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{
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try
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{
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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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{
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//skip if this is no proPad
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if(padId.indexOf("$") == -1)
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{
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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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var proID = padId.split("$")[0];
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var sql = "SELECT subDomain FROM pro_domains WHERE ID = ?";
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etherpadDB.query(sql, [proID], function(err, results)
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{
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if(!err)
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{
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subdomain = results[0].subDomain;
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}
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callback(err);
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});
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}
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], callback);
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},
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function(callback)
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{
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//saves all values that should be written to the database
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var values = {};
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//this is a pro pad, let's convert it to a group pad
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if(padId.indexOf("$") != -1)
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{
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var padIdParts = padId.split("$");
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var proID = padIdParts[0];
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var padName = padIdParts[1];
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var groupID
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//this proID is not converted so far, do it
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if(proID2groupID[proID] == null)
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{
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groupID = "g." + randomString(16);
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//create the mappers for this new group
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proID2groupID[proID] = groupID;
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proID2subdomain[proID] = subdomain;
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groups[groupID] = {pads: {}};
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}
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//use the generated groupID;
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groupID = proID2groupID[proID];
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//rename the pad
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padId = groupID + "$" + 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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{
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var newAuthorIDs = {};
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var 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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{
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var key = apool.numToAttrib[i][0];
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var value = apool.numToAttrib[i][1];
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//skip non authors and anonymous authors
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if(key != "author" || value == "")
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continue;
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//generate new author values
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var authorID = "a." + randomString(16);
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var authorColorID = authors[i].colorId || Math.floor(Math.random()*32);
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var 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": 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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{
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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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{
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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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var fullAPool = (new AttributePool()).fromJsonable(apool);
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var keyRev = Math.floor(padmeta.head / padmeta.keyRevInterval) * padmeta.keyRevInterval;
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var atext = changesetsMeta[keyRev].atext;
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var curRev = keyRev;
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while (curRev < padmeta.head)
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{
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curRev++;
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var 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: 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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}
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catch(e)
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{
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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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var sql = "";
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for(var key in values)
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{
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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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{
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var start = 0;
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var lengths = offsets.split(",");
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for(var i=0;i<lengths.length;i++)
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{
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var unitLength = lengths[i];
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//skip empty units
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if(unitLength == "")
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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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var 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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