package be.nikiroo.fanfix; import java.io.File; import java.io.IOException; import java.util.Date; import be.nikiroo.fanfix.bundles.Config; import be.nikiroo.fanfix.bundles.ConfigBundle; import be.nikiroo.fanfix.bundles.StringId; import be.nikiroo.fanfix.bundles.StringIdBundle; import be.nikiroo.fanfix.bundles.StringIdGuiBundle; import be.nikiroo.fanfix.bundles.UiConfig; import be.nikiroo.fanfix.bundles.UiConfigBundle; import be.nikiroo.fanfix.library.BasicLibrary; import be.nikiroo.fanfix.library.CacheLibrary; import be.nikiroo.fanfix.library.LocalLibrary; import be.nikiroo.fanfix.library.RemoteLibrary; import be.nikiroo.utils.Cache; import be.nikiroo.utils.IOUtils; import be.nikiroo.utils.TempFiles; import be.nikiroo.utils.TraceHandler; import be.nikiroo.utils.resources.Bundles; /** * Global state for the program (services and singletons). * * @author niki */ public class Instance { private static ConfigBundle config; private static UiConfigBundle uiconfig; private static StringIdBundle trans; private static DataLoader cache; private static StringIdGuiBundle transGui; private static BasicLibrary lib; private static File coverDir; private static File readerTmp; private static File remoteDir; private static String configDir; private static TraceHandler tracer; private static TempFiles tempFiles; static { // Before we can configure it: tracer = new TraceHandler(true, checkEnv("DEBUG"), checkEnv("DEBUG")); // config dir: configDir = getConfigDir(); if (!new File(configDir).exists()) { new File(configDir).mkdirs(); } // Most of the rest is dependent upon this: createConfigs(configDir, false); // update tracer: boolean debug = Instance.getConfig() .getBoolean(Config.DEBUG_ERR, false); boolean trace = Instance.getConfig().getBoolean(Config.DEBUG_TRACE, false); if (checkEnv("DEBUG")) { debug = true; trace = true; } tracer = new TraceHandler(true, debug, trace); // default Library remoteDir = new File(configDir, "remote"); lib = createDefaultLibrary(remoteDir); // create cache File tmp = getFile(Config.CACHE_DIR); if (tmp == null) { // Could have used: System.getProperty("java.io.tmpdir") tmp = new File(configDir, "tmp"); } String ua = config.getString(Config.USER_AGENT); try { int hours = config.getInteger(Config.CACHE_MAX_TIME_CHANGING, -1); int hoursLarge = config .getInteger(Config.CACHE_MAX_TIME_STABLE, -1); cache = new DataLoader(tmp, ua, hours, hoursLarge); } catch (IOException e) { tracer.error(new IOException( "Cannot create cache (will continue without cache)", e)); cache = new DataLoader(ua); } cache.setTraceHandler(tracer); // readerTmp / coverDir readerTmp = getFile(UiConfig.CACHE_DIR_LOCAL_READER); if (readerTmp == null) { readerTmp = new File(configDir, "tmp-reader"); } coverDir = getFile(Config.DEFAULT_COVERS_DIR); if (coverDir != null && !coverDir.exists()) { tracer.error(new IOException( "The 'default covers' directory does not exists: " + coverDir)); coverDir = null; } try { tempFiles = new TempFiles("fanfix"); } catch (IOException e) { tracer.error(new IOException("Cannot create temporary directory", e)); } } /** * The traces handler for this {@link Cache}. *

* It is never NULL. * * @return the traces handler (never NULL) */ public static TraceHandler getTraceHandler() { return tracer; } /** * The traces handler for this {@link Cache}. * * @param tracer * the new traces handler or NULL */ public static void setTraceHandler(TraceHandler tracer) { if (tracer == null) { tracer = new TraceHandler(false, false, false); } Instance.tracer = tracer; cache.setTraceHandler(tracer); } /** * Get the (unique) configuration service for the program. * * @return the configuration service */ public static ConfigBundle getConfig() { return config; } /** * Get the (unique) UI configuration service for the program. * * @return the configuration service */ public static UiConfigBundle getUiConfig() { return uiconfig; } /** * Reset the configuration. * * @param resetTrans * also reset the translation files */ public static void resetConfig(boolean resetTrans) { String dir = Bundles.getDirectory(); Bundles.setDirectory(null); try { try { ConfigBundle config = new ConfigBundle(); config.updateFile(configDir); } catch (IOException e) { tracer.error(e); } try { UiConfigBundle uiconfig = new UiConfigBundle(); uiconfig.updateFile(configDir); } catch (IOException e) { tracer.error(e); } if (resetTrans) { try { StringIdBundle trans = new StringIdBundle(null); trans.updateFile(configDir); } catch (IOException e) { tracer.error(e); } } } finally { Bundles.setDirectory(dir); } } /** * Get the (unique) {@link DataLoader} for the program. * * @return the {@link DataLoader} */ public static DataLoader getCache() { return cache; } /** * Get the (unique) {link StringIdBundle} for the program. *

* This is used for the translations of the core parts of Fanfix. * * @return the {link StringIdBundle} */ public static StringIdBundle getTrans() { return trans; } /** * Get the (unique) {link StringIdGuiBundle} for the program. *

* This is used for the translations of the GUI parts of Fanfix. * * @return the {link StringIdGuiBundle} */ public static StringIdGuiBundle getTransGui() { return transGui; } /** * Get the (unique) {@link LocalLibrary} for the program. * * @return the {@link LocalLibrary} */ public static BasicLibrary getLibrary() { if (lib == null) { throw new NullPointerException("We don't have a library to return"); } return lib; } /** * Return the directory where to look for default cover pages. * * @return the default covers directory */ public static File getCoverDir() { return coverDir; } /** * Return the directory where to store temporary files for the local reader. * * @return the directory */ public static File getReaderDir() { return readerTmp; } /** * Return the directory where to store temporary files for the remote * {@link LocalLibrary}. * * @param host * the remote for this host * * @return the directory */ public static File getRemoteDir(String host) { return getRemoteDir(remoteDir, host); } /** * Return the directory where to store temporary files for the remote * {@link LocalLibrary}. * * @param remoteDir * the base remote directory * @param host * the remote for this host * * @return the directory */ private static File getRemoteDir(File remoteDir, String host) { remoteDir.mkdirs(); if (host != null) { return new File(remoteDir, host); } return remoteDir; } /** * Check if we need to check that a new version of Fanfix is available. * * @return TRUE if we need to */ public static boolean isVersionCheckNeeded() { try { long wait = config.getInteger(Config.UPDATE_INTERVAL, 1) * 24 * 60 * 60 * 1000; if (wait >= 0) { String lastUpString = IOUtils.readSmallFile(new File(configDir, "LAST_UPDATE")); long delay = new Date().getTime() - Long.parseLong(lastUpString); if (delay > wait) { return true; } } else { return false; } } catch (Exception e) { // No file or bad file: return true; } return false; } /** * Notify that we checked for a new version of Fanfix. */ public static void setVersionChecked() { try { IOUtils.writeSmallFile(new File(configDir), "LAST_UPDATE", Long.toString(new Date().getTime())); } catch (IOException e) { tracer.error(e); } } /** * The facility to use temporary files in this program. *

* MUST be closed at end of program. * * @return the facility */ public static TempFiles getTempFiles() { return tempFiles; } /** * The configuration directory (will check, in order of preference, * {@link Bundles#getDirectory()}, the system properties, the environment * and then defaults to $HOME/.fanfix). * * @return the config directory */ private static String getConfigDir() { String configDir = Bundles.getDirectory(); if (configDir == null) { configDir = System.getProperty("CONFIG_DIR"); } if (configDir == null) { configDir = System.getenv("CONFIG_DIR"); } if (configDir == null) { configDir = new File(getHome(), ".fanfix").getPath(); } return configDir; } /** * Create the config variables ({@link Instance#config}, * {@link Instance#uiconfig}, {@link Instance#trans} and * {@link Instance#transGui}). * * @param configDir * the directory where to find the configuration files * @param refresh * TRUE to reset the configuration files from the default * included ones */ private static void createConfigs(String configDir, boolean refresh) { if (!refresh) { Bundles.setDirectory(configDir); } try { config = new ConfigBundle(); config.updateFile(configDir); } catch (IOException e) { tracer.error(e); } try { uiconfig = new UiConfigBundle(); uiconfig.updateFile(configDir); } catch (IOException e) { tracer.error(e); } // No updateFile for this one! (we do not want the user to have custom // translations that won't accept updates from newer versions) trans = new StringIdBundle(getLang()); transGui = new StringIdGuiBundle(getLang()); // Fix an old bug (we used to store custom translation files by // default): if (trans.getString(StringId.INPUT_DESC_CBZ) == null) { trans.deleteFile(configDir); } if (checkEnv("NOUTF")) { trans.setUnicode(false); transGui.setUnicode(false); } Bundles.setDirectory(configDir); } /** * Create the default library as specified by the config. * * @param remoteDir * the base remote directory if needed * * @return the default {@link BasicLibrary} */ private static BasicLibrary createDefaultLibrary(File remoteDir) { BasicLibrary lib = null; String remoteLib = config.getString(Config.DEFAULT_LIBRARY); if (remoteLib == null || remoteLib.trim().isEmpty()) { String libDir = System.getProperty("fanfix.libdir"); if (libDir == null || libDir.isEmpty()) { libDir = config.getString(Config.LIBRARY_DIR); } try { lib = new LocalLibrary(getFile(libDir)); } catch (Exception e) { tracer.error(new IOException( "Cannot create library for directory: " + getFile(libDir), e)); } } else { int pos = remoteLib.lastIndexOf(":"); if (pos >= 0) { String port = remoteLib.substring(pos + 1).trim(); remoteLib = remoteLib.substring(0, pos); pos = remoteLib.lastIndexOf(":"); if (pos >= 0) { String host = remoteLib.substring(pos + 1).trim(); String key = remoteLib.substring(0, pos).trim(); try { tracer.trace("Selecting remote library " + host + ":" + port); lib = new RemoteLibrary(key, host, Integer.parseInt(port)); lib = new CacheLibrary(getRemoteDir(remoteDir, host), lib); } catch (Exception e) { } } } if (lib == null) { tracer.error(new IOException( "Cannot create remote library for: " + remoteLib)); } } return lib; } /** * Return a path, but support the special $HOME variable. * * @return the path */ private static File getFile(Config id) { return getFile(config.getString(id)); } /** * Return a path, but support the special $HOME variable. * * @return the path */ private static File getFile(UiConfig id) { return getFile(uiconfig.getString(id)); } /** * Return a path, but support the special $HOME variable. * * @return the path */ private static File getFile(String path) { File file = null; if (path != null && !path.isEmpty()) { path = path.replace('/', File.separatorChar); if (path.contains("$HOME")) { path = path.replace("$HOME", getHome()); } file = new File(path); } return file; } /** * Return the home directory from the system properties. * * @return the home */ private static String getHome() { String home = System.getProperty("fanfix.home"); if (home != null && new File(home).isFile()) { home = null; } if (home == null || home.trim().isEmpty()) { home = System.getProperty("user.home"); if (!new File(home).isDirectory()) { home = null; } } if (home == null || home.trim().isEmpty()) { home = System.getProperty("java.io.tmpdir"); if (!new File(home).isDirectory()) { home = null; } } if (home == null) { home = ""; } return home; } /** * The language to use for the application (NULL = default system language). * * @return the language */ private static String getLang() { String lang = config.getString(Config.LANG); if (System.getenv("LANG") != null && !System.getenv("LANG").isEmpty()) { lang = System.getenv("LANG"); } if (lang != null && lang.isEmpty()) { lang = null; } return lang; } /** * Check that the given environment variable is "enabled". * * @param key * the variable to check * * @return TRUE if it is */ private static boolean checkEnv(String key) { String value = System.getenv(key); if (value != null) { value = value.trim().toLowerCase(); if ("yes".equals(value) || "true".equals(value) || "on".equals(value) || "1".equals(value) || "y".equals(value)) { return true; } } return false; } }