etherpad-lite/node/ImportHandler.js

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2011-07-21 21:13:58 +02:00
/**
* Handles the import requests
*/
/*
* 2011 Peter 'Pita' Martischka
*
* 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 padManager = require("./PadManager");
var padMessageHandler = require("./PadMessageHandler");
var async = require("async");
var fs = require("fs");
var settings = require('./settings');
var formidable = require('formidable');
//load abiword only if its enabled
if(settings.abiword != null)
var abiword = require("./Abiword");
/**
* do a requested import
*/
exports.doImport = function(req, res, padId)
{
//pipe to a file
//convert file to text via abiword
//set text in the pad
var srcFile, destFile;
var pad;
var text;
async.series([
//save the uploaded file to /tmp
function(callback)
{
var form = new formidable.IncomingForm();
form.keepExtensions = true;
form.parse(req, function(err, fields, files)
{
//save the path of the uploaded file
srcFile = files.file.path;
callback(err);
});
},
//convert file to text
function(callback)
{
var randNum = Math.floor(Math.random()*new Date().getTime());
destFile = "/tmp/eplite_import_" + randNum + ".txt";
abiword.convertFile(srcFile, destFile, "txt", callback);
},
//get the pad object
function(callback)
{
padManager.getPad(padId, function(err, _pad)
{
pad = _pad;
callback(err);
});
},
//read the text
function(callback)
{
fs.readFile(destFile, "utf8", function(err, _text)
{
text = _text;
callback(err);
});
},
//change text of the pad and broadcast the changeset
function(callback)
{
pad.setText(text);
padMessageHandler.updatePadClients(pad, callback);
},
//clean up temporary files
function(callback)
{
async.parallel([
function(callback)
{
fs.unlink(srcFile, callback);
},
function(callback)
{
fs.unlink(destFile, callback);
}
], callback);
}
], function(err)
{
//close the connection
res.send("ok");
if(err) throw err;
});
}