// License: GPL. For details, see LICENSE file. package org.openstreetmap.josm.tools; import java.io.BufferedReader; import java.io.IOException; import java.net.URL; import org.openstreetmap.josm.Main; import org.openstreetmap.josm.tools.LanguageInfo.LocaleType; /** * Read a trac-wiki page. * * @author imi */ public class WikiReader { private final String baseurl; /** * Constructs a new {@code WikiReader} for the given base URL. * @param baseurl The wiki base URL */ public WikiReader(String baseurl) { this.baseurl = baseurl; } /** * Constructs a new {@code WikiReader}. */ public WikiReader() { this.baseurl = Main.pref.get("help.baseurl", Main.getJOSMWebsite()); } /** * 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.. * * @throws IOException Throws, if the page could not be loaded. */ public String read(String url) throws IOException { URL u = new URL(url); BufferedReader in = Utils.openURLReader(u); try { if (url.startsWith(baseurl) && !url.endsWith("?format=txt")) return readFromTrac(in, u); return readNormal(in); } finally { Utils.close(in); } } public String readLang(String text) throws IOException { String languageCode; String res = ""; languageCode = LanguageInfo.getWikiLanguagePrefix(LocaleType.DEFAULTNOTENGLISH); if(languageCode != null) { res = readLang(new URL(baseurl + "/wiki/" + languageCode + text)); } if(res.isEmpty()) { languageCode = LanguageInfo.getWikiLanguagePrefix(LocaleType.BASELANGUAGE); if(languageCode != null) { res = readLang(new URL(baseurl + "/wiki/" + languageCode + text)); } } if(res.isEmpty()) { languageCode = LanguageInfo.getWikiLanguagePrefix(LocaleType.ENGLISH); if(languageCode != null) { res = readLang(new URL(baseurl + "/wiki/" + languageCode + text)); } } if(res.isEmpty()) { throw new IOException(text + " does not exist"); } else { return res; } } private String readLang(URL url) throws IOException { BufferedReader in; try { in = Utils.openURLReader(url); } catch (IOException e) { Main.addNetworkError(url, Utils.getRootCause(e)); throw e; } try { return readFromTrac(in, url); } finally { Utils.close(in); } } private String readNormal(BufferedReader in) throws IOException { StringBuilder b = new StringBuilder(); for (String line = in.readLine(); line != null; line = in.readLine()) { if (!line.contains("[[TranslatedPages]]")) { b.append(line.replaceAll(" />", ">")).append("\n"); } } return "" + b + ""; } protected String readFromTrac(BufferedReader in, URL url) throws IOException { boolean inside = false; boolean transl = false; boolean skip = false; String b = ""; String full = ""; for (String line = in.readLine(); line != null; line = in.readLine()) { full += line; if (line.contains("
")) { inside = true; } else if (line.contains("
")) { inside = true; } else if (line.contains("
")) { inside = false; } else if (line.contains("

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")) { inside = false; } else if (line.contains("
")) { inside = false; } else if (line.contains("
")) { skip = true; } if (inside && !transl && !skip) { // 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(".", "") .replaceAll("href=\"/", "href=\"" + baseurl + "/") .replaceAll(" />", ">") + "\n"; } else if (transl && line.contains("
")) { transl = false; } if (line.contains("
")) { skip = false; } } if (b.indexOf(" Describe ") >= 0 || b.indexOf(" does not exist. You can create it here.

") >= 0) return ""; if(b.isEmpty()) b = full; return " " + b + ""; } }