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Diffstat (limited to 'netx/net/sourceforge/jnlp/browser/FirefoxPreferencesParser.java')
-rw-r--r-- | netx/net/sourceforge/jnlp/browser/FirefoxPreferencesParser.java | 155 |
1 files changed, 155 insertions, 0 deletions
diff --git a/netx/net/sourceforge/jnlp/browser/FirefoxPreferencesParser.java b/netx/net/sourceforge/jnlp/browser/FirefoxPreferencesParser.java new file mode 100644 index 0000000..1f206a9 --- /dev/null +++ b/netx/net/sourceforge/jnlp/browser/FirefoxPreferencesParser.java @@ -0,0 +1,155 @@ +/* FirefoxPreferencesParser.java + Copyright (C) 2011 Red Hat, Inc. + +This file is part of IcedTea. + +IcedTea is free software; you can redistribute it and/or +modify it under the terms of the GNU General Public License as published by +the Free Software Foundation, version 2. + +IcedTea is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +General Public License for more details. + +You should have received a copy of the GNU General Public License +along with IcedTea; see the file COPYING. If not, write to +the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA +02110-1301 USA. + +Linking this library statically or dynamically with other modules is +making a combined work based on this library. Thus, the terms and +conditions of the GNU General Public License cover the whole +combination. + +As a special exception, the copyright holders of this library give you +permission to link this library with independent modules to produce an +executable, regardless of the license terms of these independent +modules, and to copy and distribute the resulting executable under +terms of your choice, provided that you also meet, for each linked +independent module, the terms and conditions of the license of that +module. An independent module is a module which is not derived from +or based on this library. If you modify this library, you may extend +this exception to your version of the library, but you are not +obligated to do so. If you do not wish to do so, delete this +exception statement from your version. +*/ + +package net.sourceforge.jnlp.browser; + +import java.io.BufferedReader; +import java.io.File; +import java.io.FileReader; +import java.io.IOException; +import java.util.HashMap; +import java.util.Map; + +import net.sourceforge.jnlp.runtime.JNLPRuntime; + +/** + * A parser for Firefox's preferences file. It can 'parse' Firefox's + * preferences file and expose the prefrences in a simple to use format. + * <p> + * Sample usage: + * <pre> + * FirefoxPreferencesParser p = new FirefoxPreferencesParser(prefsFile); + * p.parse(); + * Map<String,String> prefs = p.getPreferences(); + * System.out.println("blink allowed: " + prefs.get("browser.blink_allowed")); + * </pre> + */ +public final class FirefoxPreferencesParser { + + File prefsFile = null; + Map<String, String> prefs = null; + + /** + * Creates a new FirefoxPreferencesParser + * @param preferencesFile + */ + public FirefoxPreferencesParser(File preferencesFile) { + prefsFile = preferencesFile; + } + + /** + * Parse the prefernces file + * @throws IOException if an exception ocurrs while reading the + * preferences file. + */ + public void parse() throws IOException { + /* + * The Firefox preference file is actually in javascript. It does seem + * to be nicely formatted, so it should be possible to hack reading it. + * The correct way of course is to use a javascript library and extract + * the user_pref object + */ + prefs = new HashMap<String, String>(); + + BufferedReader reader = new BufferedReader(new FileReader(prefsFile)); + + while (true) { + String line = reader.readLine(); + // end of stream + if (line == null) { + break; + } + + line = line.trim(); + if (line.startsWith("user_pref")) { + + /* + * each line is of the form: user_pref("key",value); where value + * can be a string in double quotes or an integer or float or + * boolean + */ + + boolean foundKey = false; + boolean foundValue = false; + + // extract everything inside user_pref( and ); + String pref = line.substring("user_pref(".length(), line.length() - 2); + // key and value are separated by a , + int firstCommaPos = pref.indexOf(','); + if (firstCommaPos >= 1) { + String key = pref.substring(0, firstCommaPos).trim(); + if (key.startsWith("\"") && key.endsWith("\"")) { + key = key.substring(1, key.length() - 1); + if (key.trim().length() > 0) { + foundKey = true; + } + } + + if (pref.length() > firstCommaPos + 1) { + String value = pref.substring(firstCommaPos + 1).trim(); + if (value.startsWith("\"") && value.endsWith("\"")) { + value = value.substring(1, value.length() - 1).trim(); + } + foundValue = true; + + if (foundKey && foundValue) { + // System.out.println("added (\"" + key + "\", \"" + value + "\")"); + prefs.put(key, value); + } + } + } + } + } + if (JNLPRuntime.isDebug()) { + System.out.println("Read " + prefs.size() + " entries from Firefox's preferences"); + } + } + + /** + * Get the firefox preferences as a map (key,value pair). Note that + * all values (including integers and booleans) are stored as a string, so + * conversion to an appropriate type may be required. + * + * @return a map containing firefox' preferences + */ + public Map<String, String> getPreferences() { + HashMap<String, String> newMap = new HashMap<String, String>(); + newMap.putAll(prefs); + return newMap; + } + +} |