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
  27                         + "/export/cacert/%/messages.po";
  28         public static final String[] AUTO_LANGS = new String[]{"en", "de", "nl",
  29                         "pt_BR", "fr", "sv", "it", "es", "hu", "fi", "ja", "bg", "pt",
  30                         "da", "pl", "zh_CN", "ru", "lv", "cs", "zh_TW", "el", "tr", "ar"};
  31         public static void main(String[] args) throws IOException,
  32                         ParserConfigurationException, TransformerException {
  33                 System.out.println("downloading locales ...");
  34                 File locale = new File("locale");
  35                 locale.mkdir();
  36
  37                 DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
  38                 DocumentBuilder db = dbf.newDocumentBuilder();
  39                 for (String lang : AUTO_LANGS) {
  40                         Document doc = db.newDocument();
  41                         doc.appendChild(doc.createElement("translations"));
  42                         URL fetch = new URL(PO_URL_TEMPLATE.replace("%", lang));
  43                         URLConnection uc = fetch.openConnection();
  44                         Scanner sc = new Scanner(uc.getInputStream());
  45                         String s = readLine(sc);
  46                         StringBuffer contents = new StringBuffer();
  47                         String id = "";
  48                         while (s != null) {
  49                                 if (s.startsWith("msgid")) {
  50                                         contents.delete(0, contents.length());
  51                                         s = readString(s, sc, contents);
  52                                         id = contents.toString();
  53                                         continue;
  54                                 } else if (s.startsWith("msgstr")) {
  55                                         contents.delete(0, contents.length());
  56                                         // System.out.println("msgstr");
  57                                         s = readString(s, sc, contents);
  58                                         String msg = contents.toString().replace("\\\"", "\"")
  59                                                         .replace("\\n", "\n");
  60                                         insertTranslation(doc, id, msg);
  61                                 } else if (s.startsWith("#")) {
  62                                         // System.out.println(s);
  63                                 } else if (s.equals("") || s.equals("\r")) {
  64
  65                                 } else {
  66                                         System.out.println("unknown line: " + s);
  67                                 }
  68                                 s = readLine(sc);
  69                         }
  70                         TransformerFactory tFactory = TransformerFactory.newInstance();
  71                         Transformer transformer = tFactory.newTransformer();
  72
  73                         DOMSource source = new DOMSource(doc);
  74                         FileOutputStream fos = new FileOutputStream(new File(locale, lang
  75                                         + ".xml"));
  76                         StreamResult result = new StreamResult(fos);
  77                         transformer.setOutputProperty(OutputKeys.INDENT, "yes");
  78                         transformer.setOutputProperty(
  79                                         "{http://xml.apache.org/xslt}indent-amount", "2");
  80                         transformer.transform(source, result);
  81                         fos.close();
  82                 }
  83         }
  84         private static String readLine(Scanner sc) {
  85                 String line = sc.findWithinHorizon("[^\n]*\n", 0);
  86                 if (line == null) {
  87                         return null;
  88                 }
  89                 return line.substring(0, line.length() - 1);
  90         }
  91         private static void insertTranslation(Document doc, String id, String msg) {
  92                 Node idN = doc.createTextNode(id);
  93                 Node textN = doc.createTextNode(msg);
  94                 Element tr = doc.createElement("translation");
  95                 Element e = doc.createElement("id");
  96                 e.appendChild(idN);
  97                 tr.appendChild(e);
  98                 e = doc.createElement("msg");
  99                 e.appendChild(textN);
 100                 tr.appendChild(e);
 101                 doc.getDocumentElement().appendChild(tr);
 102         }
 103         private static String readString(String head, Scanner sc,
 104                         StringBuffer contents) throws IOException {
 105                 head = head.split(" ", 2)[1];
 106                 contents.append(head.substring(1, head.length() - 1));
 107                 String s;
 108                 while ((s = readLine(sc)) != null) {
 109                         if (!s.startsWith("\"")) {
 110                                 break;
 111                         }
 112                         contents.append(s.substring(1, s.length() - 1));
 113                 }
 114                 return s;
 115         }
 116
 117 }