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Allow LibreOffice to be used when exporting a pad

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This commit adds support for LibreOffice when exporting a pad to doc, pdf, ..

This commit also cleans up some export logic when exporting to txt
This commit is contained in:
Simon Gaeremynck 2015-10-20 19:46:08 +01:00
parent 504cc102a0
commit 2bfc3026d2
5 changed files with 133 additions and 82 deletions
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31
src/node/utils/ExportHtml.js
View file

@ -123,8 +123,8 @@ function getHTMLFromAtext(pad, atext, authorColors)
var newLength = props.push(propName);
anumMap[a] = newLength -1;
css+=".removed {text-decoration: line-through; " +
"-ms-filter:'progid:DXImageTransform.Microsoft.Alpha(Opacity=80)'; "+
css+=".removed {text-decoration: line-through; " +
"-ms-filter:'progid:DXImageTransform.Microsoft.Alpha(Opacity=80)'; "+
"filter: alpha(opacity=80); "+
"opacity: 0.8; "+
"}\n";
@ -287,7 +287,7 @@ function getHTMLFromAtext(pad, atext, authorColors)
var s = taker.take(chars);
//removes the characters with the code 12. Don't know where they come
//removes the characters with the code 12. Don't know where they come
//from but they break the abiword parser and are completly useless
s = s.replace(String.fromCharCode(12), "");
@ -401,7 +401,7 @@ function getHTMLFromAtext(pad, atext, authorColors)
pieces.push('<br><br>');
}
}*/
else//means we are getting closer to the lowest level of indentation or are at the same level
else//means we are getting closer to the lowest level of indentation or are at the same level
{
var toClose = lists.length > 0 ? listLevels[listLevels.length - 2] - line.listLevel : 0
if( toClose > 0){
@ -455,7 +455,7 @@ function getHTMLFromAtext(pad, atext, authorColors)
}
}
}
for (var k = lists.length - 1; k >= 0; k--)
{
if(lists[k][1] == "number")
@ -484,14 +484,17 @@ exports.getPadHTMLDocument = function (padId, revNum, noDocType, callback)
stylesForExportCSS += css;
});
// Core inclusion of head etc.
var head =
(noDocType ? '' : '<!doctype html>\n') +
'<html lang="en">\n' + (noDocType ? '' : '<head>\n' +
var head =
(noDocType ? '' : '<!doctype html>\n') +
'<html lang="en">\n' + (noDocType ? '' : '<head>\n' +
'<title>' + Security.escapeHTML(padId) + '</title>\n' +
'<meta charset="utf-8">\n' +
'<style> * { font-family: arial, sans-serif;\n' +
'font-size: 13px;\n' +
'line-height: 17px; }' +
'<meta name="generator" content="Etherpad Lite">\n' +
'<meta name="author" content="Etherpad Lite">\n' +
'<meta name="changedby" content="Etherpad Lite">\n' +
'<meta charset="utf-8">\n' +
'<style> * { font-family: arial, sans-serif;\n' +
'font-size: 13px;\n' +
'line-height: 17px; }' +
'ul.indent { list-style-type: none; }' +
'ol { list-style-type: none; padding-left:0;}' +
@ -577,8 +580,8 @@ exports.getPadHTMLDocument = function (padId, revNum, noDocType, callback)
'ol > ol > ol > ol > ol > ol > ol > ol > ol > ol > ol > ol > ol > ol > ol{ text-indent: 140px; }' +
'ol > ol > ol > ol > ol > ol > ol > ol > ol > ol > ol > ol > ol > ol > ol > ol{ text-indent: 150px; }' +
stylesForExportCSS +
'</style>\n' + '</head>\n') +
stylesForExportCSS +
'</style>\n' + '</head>\n') +
'<body>';
var foot = '</body>\n</html>\n';

93
src/node/utils/LibreOffice.js Normal file
View file

@ -0,0 +1,93 @@
/**
* Controls the communication with LibreOffice
*/
/*
* 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 async = require("async");
var fs = require("fs");
var os = require("os");
var path = require("path");
var settings = require("./Settings");
var spawn = require("child_process").spawn;
// Conversion tasks will be queued up, so we don't overload the system
var queue = async.queue(doConvertTask, 1);
/**
* Convert a file from one type to another
*
* @param {String} srcFile The path on disk to convert
* @param {String} destFile The path on disk where the converted file should be stored
* @param {String} type The type to convert into
* @param {Function} callback Standard callback function
*/
exports.convertFile = function(srcFile, destFile, type, callback) {
queue.push({"srcFile": srcFile, "destFile": destFile, "type": type, "callback": callback});
};
function doConvertTask(task, callback) {
var tmpDir = os.tmpdir();
async.series([
// Generate a PDF file with LibreOffice
function(callback) {
var soffice = spawn(settings.soffice, [
'--headless',
'--invisible',
'--nologo',
'--nolockcheck',
'--convert-to', task.type,
task.srcFile,
'--outdir', tmpDir
]);
var stdoutBuffer = '';
// Delegate the processing of stdout to another function
soffice.stdout.on('data', function(data) {
stdoutBuffer += data.toString();
});
// Append error messages to the buffer
soffice.stderr.on('data', function(data) {
stdoutBuffer += data.toString();
});
// Throw an exception if libreoffice failed
soffice.on('exit', function(code) {
if (code != 0) {
return callback("LibreOffice died with exit code " + code + " and message: " + stdoutBuffer);
}
callback();
})
},
// Move the PDF file to the correct place
function(callback) {
var filename = path.basename(task.srcFile);
var pdfFilename = filename.substr(0, filename.lastIndexOf('.')) + '.' + task.type;
var pdfPath = path.join(tmpDir, pdfFilename);
fs.rename(pdfPath, task.destFile, callback);
}
], function(err) {
// Invoke the callback for the local queue
callback();
// Invoke the callback for the task
task.callback(err);
});
}

5
src/node/utils/Settings.js
View file

@ -152,6 +152,11 @@ exports.minify = true;
*/
exports.abiword = null;
/**
* The path of the libreoffice executable
*/
exports.soffice = null;
/**
* The path of the tidy executable
*/