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
  26     public static final String DOWNLOAD_SERVER = "translations.cacert.org";
  27
  28     public static final String PO_URL_TEMPLATE = "http://" + DOWNLOAD_SERVER + "/export/cacert/%/messages.po";
  29
  30     public static final String[] AUTO_LANGS = new String[] {
  31             "en", "de", "nl", "pt_BR", "fr", "sv", "it", "es", "hu", "fi", "ja", "bg", "pt", "da", "pl", "zh_CN", "ru", "lv", "cs", "zh_TW", "el", "tr", "ar"
  32     };
  33
  34     public static void main(String[] args) throws IOException, ParserConfigurationException, TransformerException {
  35         System.out.println("downloading locales ...");
  36         File locale = new File("locale");
  37         locale.mkdir();
  38
  39         DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
  40         DocumentBuilder db = dbf.newDocumentBuilder();
  41         for (String lang : AUTO_LANGS) {
  42             Document doc = db.newDocument();
  43             doc.appendChild(doc.createElement("translations"));
  44             URL fetch = new URL(PO_URL_TEMPLATE.replace("%", lang));
  45             URLConnection uc = fetch.openConnection();
  46             Scanner sc = new Scanner(uc.getInputStream());
  47             String s = readLine(sc);
  48             StringBuffer contents = new StringBuffer();
  49             String id = "";
  50             while (s != null) {
  51                 if (s.startsWith("msgid")) {
  52                     contents.delete(0, contents.length());
  53                     s = readString(s, sc, contents);
  54                     id = contents.toString();
  55                     continue;
  56                 } else if (s.startsWith("msgstr")) {
  57                     contents.delete(0, contents.length());
  58                     // System.out.println("msgstr");
  59                     s = readString(s, sc, contents);
  60                     String msg = contents.toString().replace("\\\"", "\"").replace("\\n", "\n");
  61                     insertTranslation(doc, id, msg);
  62                 } else if (s.startsWith("#")) {
  63                     // System.out.println(s);
  64                 } else if (s.equals("") || s.equals("\r")) {
  65
  66                 } else {
  67                     System.out.println("unknown line: " + s);
  68                 }
  69                 s = readLine(sc);
  70             }
  71             TransformerFactory tFactory = TransformerFactory.newInstance();
  72             Transformer transformer = tFactory.newTransformer();
  73
  74             DOMSource source = new DOMSource(doc);
  75             FileOutputStream fos = new FileOutputStream(new File(locale, lang + ".xml"));
  76             StreamResult result = new StreamResult(fos);
  77             transformer.setOutputProperty(OutputKeys.INDENT, "yes");
  78             transformer.setOutputProperty("{http://xml.apache.org/xslt}indent-amount", "2");
  79             transformer.transform(source, result);
  80             fos.close();
  81         }
  82         System.out.println("Done.");
  83     }
  84
  85     private static String readLine(Scanner sc) {
  86         String line = sc.findWithinHorizon("[^\n]*\n", 0);
  87         if (line == null) {
  88             return null;
  89         }
  90         return line.substring(0, line.length() - 1);
  91     }
  92
  93     private static void insertTranslation(Document doc, String id, String msg) {
  94         Node idN = doc.createTextNode(id);
  95         Node textN = doc.createTextNode(msg);
  96         Element tr = doc.createElement("translation");
  97         Element e = doc.createElement("id");
  98         e.appendChild(idN);
  99         tr.appendChild(e);
 100         e = doc.createElement("msg");
 101         e.appendChild(textN);
 102         tr.appendChild(e);
 103         doc.getDocumentElement().appendChild(tr);
 104     }
 105
 106     private static String readString(String head, Scanner sc, StringBuffer contents) throws IOException {
 107         head = head.split(" ", 2)[1];
 108         contents.append(head.substring(1, head.length() - 1));
 109         String s;
 110         while ((s = readLine(sc)) != null) {
 111             if ( !s.startsWith("\"")) {
 112                 break;
 113             }
 114             contents.append(s.substring(1, s.length() - 1));
 115         }
 116         return s;
 117     }
 118
 119 }