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/**
* Copyright 2009 Google Inc.
*
* 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.
*/
package com.etherpad.openofficeservice;
import net.appjet.common.sars.{SarsServer,SarsMessageHandler};
import java.io.{DataInputStream,DataOutputStream};
import java.io.{File,FileOutputStream,ByteArrayInputStream,ByteArrayOutputStream};
class OOSException(m: String) extends RuntimeException(m);
class UnsupportedFormatException(format: String) extends OOSException("Unsupported format: "+format);
object TemporaryFailure extends OOSException("Temporary failure");
// stub object here. Please replace if you'd like to use openoffice!
object OpenOfficeServerUtility {
def checkServerAvailability(host: String, port: Int): Boolean = {
return false;
}
def runOpenOfficeServer(path: String, host: String, port: Int, timeout: Int, wait: Boolean) {
// nothing
}
}
class OpenOfficeFileConverter {
def setOpenOfficeServerDetails(host: String, port: Int) {
// nothing
}
def convertFile(src: File, dst: File, converter: String, extension: String): Boolean = {
return false;
}
}
object OpenOfficeService {
val formats = Map(
"pdf" -> "writer_pdf_Export",
"doc" -> "MS Word 97",
"html" -> "HTML (StarWriter)",
"odt" -> "writer8",
//"html" -> "XHTML Writer File",
"txt" -> "Text"
);
def createTempFile(bytes: Array[byte], suffix: String) = {
var f = File.createTempFile("ooconvert-", if (suffix == null) { null } else if (suffix == "") { "" } else { "."+suffix });
if (bytes != null) {
val fos = new FileOutputStream(f);
fos.write(bytes);
}
f;
}
var soffice = "soffice";
def setExecutable(exec: String) {
soffice = exec;
}
def convertFile(from: String, to: String, bytes: Array[byte]): Array[byte] = {
if (from == to) {
return bytes;
}
val tempFile = createTempFile(bytes, from);
val outFile = createTempFile(null, to);
val openOfficeServerHost = "localhost";
val openOfficeServerPort = 8100;
if (! OpenOfficeServerUtility.checkServerAvailability(openOfficeServerHost, openOfficeServerPort)) {
try {
OpenOfficeServerUtility.runOpenOfficeServer(soffice, openOfficeServerHost, openOfficeServerPort, 20000, true);
} catch {
case e: java.io.IOException => {
e.printStackTrace();
throw TemporaryFailure;
}
}
}
var converter = new OpenOfficeFileConverter();
converter.setOpenOfficeServerDetails(openOfficeServerHost, openOfficeServerPort);
var status = false;
try {
status = converter.convertFile(tempFile, outFile, formats(to), to);
} catch {
case e => {
e.printStackTrace();
throw new OOSException("Unknown exception occurred: "+e.getMessage());
}
}
if (status == false) {
throw new UnsupportedFormatException(from);
}
net.appjet.common.util.BetterFile.getFileBytes(outFile);
}
def main(args: Array[String]) {
if (args.length > 0) {
soffice = args(0);
if (soffice.length == 0) {
exit(1);
}
}
// Query format:
// from: String, to: String, count: Int, bytes: Array[byte]
// Response format:
// status: Int, <data>
// status 0 (success) - <data>: count: Int, bytes: Array[byte]
// status 1 (temporary failure) - <data>: <none>
// status 2 (permanent failure) - <data>: type: Int
// type - 0: unknown failure.
// - 1: unsupported format
val handler = new SarsMessageHandler {
override def handle(b: Array[byte]): Option[Array[byte]] = {
val is = new DataInputStream(new ByteArrayInputStream(b));
val from = is.readUTF;
val to = is.readUTF;
val len = is.readInt;
val bytes = new Array[byte](len);
is.readFully(bytes);
var status = 0;
var permfailuretype = 0;
println("Converting "+from+" -> "+to+" ("+len+" bytes)");
val output = try {
convertFile(from, to, bytes);
} catch {
case TemporaryFailure => {
status = 1;
null;
}
case e: UnsupportedFormatException => {
status = 2;
permfailuretype = 1;
null;
}
case e => {
status = 2;
permfailuretype = 0;
e.printStackTrace();
null;
}
}
val retBytes = new ByteArrayOutputStream();
val ret = new DataOutputStream(retBytes);
if (status != 0) {
ret.writeInt(status); // error
status match {
case 2 => {
ret.writeInt(permfailuretype);
}
case _ => { }
}
} else {
ret.writeInt(0); // success
ret.writeInt(output.length);
ret.write(output, 0, output.length);
}
Some(retBytes.toByteArray());
}
}
val server = new SarsServer("ooffice-password", handler, None, 8101);
server.start();
println("Server running...");
server.join();
println("Server quitting...");
}
}
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