| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| package org.apache.felix.framework.security.util; |
| |
| import java.io.ByteArrayInputStream; |
| import java.io.ByteArrayOutputStream; |
| import java.io.File; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.OutputStream; |
| import java.lang.reflect.Array; |
| import java.lang.reflect.Constructor; |
| import java.util.Iterator; |
| import java.util.Map; |
| import java.util.Properties; |
| import java.util.TreeMap; |
| import java.util.Map.Entry; |
| |
| import org.apache.felix.framework.util.SecureAction; |
| |
| public final class PropertiesCache |
| { |
| private final File m_file; |
| |
| private final File m_tmp; |
| |
| private final SecureAction m_action; |
| |
| public PropertiesCache(File store, File tmp, SecureAction action) |
| { |
| m_action = action; |
| m_file = store; |
| m_tmp = tmp; |
| } |
| |
| public void write(Map data) throws IOException |
| { |
| OutputStream out = null; |
| File tmp = null; |
| File tmp2 = null; |
| try |
| { |
| tmp = m_action.createTempFile("tmp", null, m_tmp); |
| tmp2 = m_action.createTempFile("tmp", null, m_tmp); |
| m_action.deleteFile(tmp2); |
| Exception org = null; |
| try |
| { |
| out = m_action.getFileOutputStream(tmp); |
| |
| Properties store = new Properties(); |
| |
| int count = 0; |
| |
| for (Iterator iter = data.entrySet().iterator(); iter.hasNext();) |
| { |
| Entry entry = (Entry) iter.next(); |
| store.setProperty(count++ + "-" + (String) entry.getKey(), |
| getEncoded(entry.getValue())); |
| } |
| |
| store.store(out, null); |
| } |
| catch (IOException ex) |
| { |
| org = ex; |
| throw ex; |
| } |
| finally |
| { |
| if (out != null) |
| { |
| try |
| { |
| out.close(); |
| } |
| catch (IOException ex) |
| { |
| if (org == null) |
| { |
| throw ex; |
| } |
| } |
| } |
| } |
| if ((m_action.fileExists(m_file) && !m_action.renameFile(m_file, |
| tmp2)) |
| || !m_action.renameFile(tmp, m_file)) |
| { |
| throw new IOException("Unable to write permissions"); |
| } |
| } |
| catch (IOException ex) |
| { |
| if (!m_action.fileExists(m_file) && (tmp2 != null) |
| && m_action.fileExists(tmp2)) |
| { |
| m_action.renameFile(tmp2, m_file); |
| } |
| throw ex; |
| } |
| finally |
| { |
| if (tmp != null) |
| { |
| m_action.deleteFile(tmp); |
| } |
| if (tmp2 != null) |
| { |
| m_action.deleteFile(tmp2); |
| } |
| } |
| } |
| |
| public void read(Class target, Map map) throws IOException |
| { |
| if (!m_file.isFile()) |
| { |
| return; |
| } |
| InputStream in = null; |
| Exception other = null; |
| Map result = new TreeMap(); |
| try |
| { |
| in = m_action.getFileInputStream(m_file); |
| |
| Properties store = new Properties(); |
| store.load(in); |
| |
| for (Iterator iter = store.entrySet().iterator(); iter.hasNext();) |
| { |
| Entry entry = (Entry) iter.next(); |
| result.put(entry.getKey(), getUnencoded((String) entry |
| .getValue(), target)); |
| } |
| } |
| catch (IOException ex) |
| { |
| other = ex; |
| throw ex; |
| } |
| finally |
| { |
| if (in != null) |
| { |
| try |
| { |
| in.close(); |
| } |
| catch (IOException ex) |
| { |
| if (other == null) |
| { |
| throw ex; |
| } |
| } |
| } |
| } |
| for (Iterator iter = result.entrySet().iterator(); iter.hasNext();) |
| { |
| Entry entry = (Entry) iter.next(); |
| String key = (String) entry.getKey(); |
| map.put(key.substring(key.indexOf("-")), entry.getValue()); |
| } |
| } |
| |
| private String getEncoded(Object target) throws IOException |
| { |
| Properties props = new Properties(); |
| if (target.getClass().isArray()) |
| { |
| |
| Object[] array = (Object[]) target; |
| for (int i = 0; i < array.length; i++) |
| { |
| props.setProperty(Integer.toString(i), array[i].toString()); |
| } |
| |
| ByteArrayOutputStream tmp = new ByteArrayOutputStream(); |
| props.store(tmp, null); |
| return new String(tmp.toByteArray()); |
| } |
| |
| return target.toString(); |
| } |
| |
| private Object getUnencoded(String encoded, Class target) |
| throws IOException |
| { |
| try |
| { |
| if (target.isArray()) |
| { |
| Properties props = new Properties(); |
| props.load(new ByteArrayInputStream(encoded.getBytes())); |
| Class componentType = target.getComponentType(); |
| Constructor constructor = m_action.getConstructor( |
| componentType, new Class[] { String.class }); |
| Object[] params = new Object[1]; |
| Object[] result = (Object[]) Array.newInstance(componentType, |
| props.size()); |
| |
| for (Iterator iter = props.entrySet().iterator(); iter |
| .hasNext();) |
| { |
| Entry entry = (Entry) iter.next(); |
| params[0] = entry.getValue(); |
| result[Integer.parseInt((String) entry.getKey())] = constructor |
| .newInstance(params); |
| } |
| |
| return result; |
| } |
| |
| return m_action.invoke(m_action.getConstructor(target, |
| new Class[] { String.class }), new Object[] { encoded }); |
| } |
| catch (Exception ex) |
| { |
| ex.printStackTrace(); |
| |
| throw new IOException(ex.getMessage()); |
| } |
| } |
| } |