1 files changed, 112 insertions, 0 deletions
diff --git a/src/main/java/com/gitblit/WebXmlSettings.java b/src/main/java/com/gitblit/WebXmlSettings.java
new file mode 100644
index 00000000..7c8120b7
--- /dev/null
+++ b/src/main/java/com/gitblit/WebXmlSettings.java
@@ -0,0 +1,112 @@
+/*
+ * 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(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";
+	}
+}