// License: GPL. Copyright 2007 by Immanuel Scholz and others package org.openstreetmap.josm.tools; import static org.openstreetmap.josm.tools.I18n.tr; import java.io.BufferedReader; import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.net.URL; import org.openstreetmap.josm.Main; /** * Read a trac-wiki page. * * @author imi */ public class WikiReader { private final String baseurl; public WikiReader(String baseurl) { this.baseurl = baseurl; } public WikiReader() { this.baseurl = Main.pref.get("help.baseurl", "http://josm.openstreetmap.de"); } /** * Read the page specified by the url and return the content. * * If the url is within the baseurl path, parse it as an trac wikipage and replace relative * pathes etc.. * * @return * @throws IOException Throws, if the page could not be loaded. */ public String read(String url) throws IOException { BufferedReader in = new BufferedReader(new InputStreamReader(new URL(url).openStream(), "utf-8")); if (url.startsWith(baseurl) && !url.endsWith("?format=txt")) return readFromTrac(in); return readNormal(in); } public String readLang(String text) { String languageCode = LanguageInfo.getWikiLanguagePrefix(); String url = baseurl + "/wiki/" + languageCode + text; String res = ""; InputStream in = null; try { in = new URL(url).openStream(); res = readFromTrac(new BufferedReader(new InputStreamReader(in, "utf-8"))); } catch (IOException ioe) { System.out.println(tr("Warning: failed to read MOTD from ''{0}''. Exception was: {1}", url, ioe .toString())); } catch(SecurityException e) { System.out.println(tr( "Warning: failed to read MOTD from ''{0}'' for security reasons. Exception was: {1}", url, e .toString())); } finally { if (in != null) { try { in.close(); } catch (IOException e) { } } } if (res.length() == 0 && languageCode.length() != 0) { url = baseurl + "/wiki/" + text; try { in = new URL(url).openStream(); } catch (IOException e) { System.out.println(tr("Warning: failed to read MOTD from ''{0}''. Exception was: {1}", url, e .toString())); return res; } catch (SecurityException e) { System.out.println(tr( "Warning: failed to read MOTD from ''{0}'' for security reasons. Exception was: {1}", url, e .toString())); return res; } try { res = readFromTrac(new BufferedReader(new InputStreamReader(in, "utf-8"))); } catch (IOException ioe) { System.out.println(tr("Warning: failed to read MOTD from ''{0}''. Exception was: {1}", url, ioe .toString())); return res; } finally { if (in != null) { try { in.close(); } catch (IOException e) { } } } } return res; } private String readNormal(BufferedReader in) throws IOException { String b = ""; for (String line = in.readLine(); line != null; line = in.readLine()) { if (!line.contains("[[TranslatedPages]]")) { b += line.replaceAll(" />", ">") + "\n"; } } return "" + b + ""; } private String readFromTrac(BufferedReader in) throws IOException { boolean inside = false; boolean transl = false; String b = ""; for (String line = in.readLine(); line != null; line = in.readLine()) { if (line.contains("
")) { inside = true; } else if (line.contains("
")) { inside = true; } else if (line.contains("
")) { inside = false; } else if (line.contains("

Attachments

")) { inside = false; } if (inside && !transl) { // add a border="0" attribute to images, otherwise the internal help browser // will render a thick border around images inside an element // b += line.replaceAll("", ">") + "\n"; } else if (transl && line.contains("
")) { transl = false; } } if (b.indexOf(" Describe ") >= 0) return ""; return "" + b + ""; } }