util/org/cacert/gigi/util/FetchLocales.java

   1 package org.cacert.gigi.util;
   2
   3 import java.io.File;
   4 import java.io.FileOutputStream;
   5 import java.io.IOException;
   6 import java.net.URL;
   7 import java.net.URLConnection;
   8 import java.util.Scanner;
   9
  10 import javax.xml.parsers.DocumentBuilder;
  11 import javax.xml.parsers.DocumentBuilderFactory;
  12 import javax.xml.parsers.ParserConfigurationException;
  13 import javax.xml.transform.OutputKeys;
  14 import javax.xml.transform.Transformer;
  15 import javax.xml.transform.TransformerException;
  16 import javax.xml.transform.TransformerFactory;
  17 import javax.xml.transform.dom.DOMSource;
  18 import javax.xml.transform.stream.StreamResult;
  19
  20 import org.w3c.dom.Document;
  21 import org.w3c.dom.Element;
  22 import org.w3c.dom.Node;
  23
  24 public class FetchLocales {
  25         public static final String DOWNLOAD_SERVER = "translations.cacert.org";
  26         public static final String PO_URL_TEMPLATE = "http://" + DOWNLOAD_SERVER + "/export/cacert/%/messages.po";
  27         public static final String[] AUTO_LANGS = new String[] { "en", "de", "nl", "pt_BR", "fr", "sv", "it", "es", "hu",
  28                         "fi", "ja", "bg", "pt", "da", "pl", "zh_CN", "ru", "lv", "cs", "zh_TW", "el", "tr", "ar" };
  29
  30         public static void main(String[] args) throws IOException, ParserConfigurationException, TransformerException {
  31                 System.out.println("downloading locales ...");
  32                 File locale = new File("locale");
  33                 locale.mkdir();
  34
  35                 DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
  36                 DocumentBuilder db = dbf.newDocumentBuilder();
  37                 for (String lang : AUTO_LANGS) {
  38                         Document doc = db.newDocument();
  39                         doc.appendChild(doc.createElement("translations"));
  40                         URL fetch = new URL(PO_URL_TEMPLATE.replace("%", lang));
  41                         URLConnection uc = fetch.openConnection();
  42                         Scanner sc = new Scanner(uc.getInputStream());
  43                         String s = readLine(sc);
  44                         StringBuffer contents = new StringBuffer();
  45                         String id = "";
  46                         while (s != null) {
  47                                 if (s.startsWith("msgid")) {
  48                                         contents.delete(0, contents.length());
  49                                         s = readString(s, sc, contents);
  50                                         id = contents.toString();
  51                                         continue;
  52                                 } else if (s.startsWith("msgstr")) {
  53                                         contents.delete(0, contents.length());
  54                                         // System.out.println("msgstr");
  55                                         s = readString(s, sc, contents);
  56                                         String msg = contents.toString().replace("\\\"", "\"").replace("\\n", "\n");
  57                                         insertTranslation(doc, id, msg);
  58                                 } else if (s.startsWith("#")) {
  59                                         // System.out.println(s);
  60                                 } else if (s.equals("") || s.equals("\r")) {
  61
  62                                 } else {
  63                                         System.out.println("unknown line: " + s);
  64                                 }
  65                                 s = readLine(sc);
  66                         }
  67                         TransformerFactory tFactory = TransformerFactory.newInstance();
  68                         Transformer transformer = tFactory.newTransformer();
  69
  70                         DOMSource source = new DOMSource(doc);
  71                         FileOutputStream fos = new FileOutputStream(new File(locale, lang + ".xml"));
  72                         StreamResult result = new StreamResult(fos);
  73                         transformer.setOutputProperty(OutputKeys.INDENT, "yes");
  74                         transformer.setOutputProperty("{http://xml.apache.org/xslt}indent-amount", "2");
  75                         transformer.transform(source, result);
  76                         fos.close();
  77                 }
  78                 System.out.println("Done.");
  79         }
  80
  81         private static String readLine(Scanner sc) {
  82                 String line = sc.findWithinHorizon("[^\n]*\n", 0);
  83                 if (line == null) {
  84                         return null;
  85                 }
  86                 return line.substring(0, line.length() - 1);
  87         }
  88
  89         private static void insertTranslation(Document doc, String id, String msg) {
  90                 Node idN = doc.createTextNode(id);
  91                 Node textN = doc.createTextNode(msg);
  92                 Element tr = doc.createElement("translation");
  93                 Element e = doc.createElement("id");
  94                 e.appendChild(idN);
  95                 tr.appendChild(e);
  96                 e = doc.createElement("msg");
  97                 e.appendChild(textN);
  98                 tr.appendChild(e);
  99                 doc.getDocumentElement().appendChild(tr);
 100         }
 101
 102         private static String readString(String head, Scanner sc, StringBuffer contents) throws IOException {
 103                 head = head.split(" ", 2)[1];
 104                 contents.append(head.substring(1, head.length() - 1));
 105                 String s;
 106                 while ((s = readLine(sc)) != null) {
 107                         if (!s.startsWith("\"")) {
 108                                 break;
 109                         }
 110                         contents.append(s.substring(1, s.length() - 1));
 111                 }
 112                 return s;
 113         }
 114
 115 }