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/*
* Copyright 2011 gitblit.com.
*
* Licensed 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 com.gitblit;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.OutputStream;
import java.text.MessageFormat;
import java.util.Enumeration;
import java.util.Map;
import java.util.Properties;
import javax.servlet.ServletContext;
import com.gitblit.utils.StringUtils;
/**
* Loads Gitblit settings from the context-parameter values of a web.xml file.
*
* @author James Moger
*
*/
public class WebXmlSettings extends IStoredSettings {
private final Properties properties = new Properties();
private File overrideFile;
public WebXmlSettings(ServletContext context) {
super(WebXmlSettings.class);
Enumeration<?> keys = context.getInitParameterNames();
while (keys.hasMoreElements()) {
String key = keys.nextElement().toString();
String value = context.getInitParameter(key);
properties.put(key, decodeValue(value));
logger.debug(key + "=" + properties.getProperty(key));
}
}
public void applyOverrides(File overrideFile) {
this.overrideFile = overrideFile;
// apply any web-configured overrides
if (overrideFile.exists()) {
try {
InputStream is = new FileInputStream(overrideFile);
properties.load(is);
is.close();
} catch (Throwable t) {
logger.error(
MessageFormat.format("Failed to apply {0} setting overrides",
overrideFile.getAbsolutePath()), t);
}
}
}
private String decodeValue(String value) {
// decode escaped backslashes and HTML entities
return StringUtils.decodeFromHtml(value).replace("\\\\", "\\");
}
@Override
protected Properties read() {
return properties;
}
@Override
public synchronized boolean saveSettings() {
try {
Properties props = new Properties();
// load pre-existing web-configuration
if (overrideFile.exists()) {
InputStream is = new FileInputStream(overrideFile);
props.load(is);
is.close();
}
// put all new settings and persist
for (String key : removals) {
props.remove(key);
}
removals.clear();
OutputStream os = new FileOutputStream(overrideFile);
props.store(os, null);
os.close();
// override current runtime settings
properties.clear();
properties.putAll(props);
return true;
} catch (Throwable t) {
logger.error("Failed to save settings!", t);
}
return false;
}
@Override
public synchronized boolean saveSettings(Map<String, String> settings) {
try {
Properties props = new Properties();
// load pre-existing web-configuration
if (overrideFile.exists()) {
InputStream is = new FileInputStream(overrideFile);
props.load(is);
is.close();
}
// put all new settings and persist
props.putAll(settings);
OutputStream os = new FileOutputStream(overrideFile);
props.store(os, null);
os.close();
// override current runtime settings
properties.putAll(settings);
return true;
} catch (Throwable t) {
logger.error("Failed to save settings!", t);
}
return false;
}
@Override
public String toString() {
return "WEB.XML";
}
}
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