move configuration init into baseservlet

src/main/java/de/devloop/mavor/AuthenticatedServlet.java

@@ -3,11 +3,10 @@ package de.devloop.mavor;
 import java.io.IOException;
 
 import jakarta.servlet.ServletException;
-import jakarta.servlet.http.HttpServlet;
 import jakarta.servlet.http.HttpServletRequest;
 import jakarta.servlet.http.HttpServletResponse;
 
-public class AuthenticatedServlet extends HttpServlet {
+public class AuthenticatedServlet extends BaseServlet {
     protected Session session;
 
     @Override

src/main/java/de/devloop/mavor/BaseServlet.java

@@ -0,0 +1,19 @@
+package de.devloop.mavor;
+
+import java.io.IOException;
+
+import jakarta.servlet.ServletException;
+import jakarta.servlet.http.HttpServlet;
+
+public class BaseServlet extends HttpServlet {
+    protected Configuration configuration;
+
+    @Override
+    public void init() throws ServletException {
+        try {
+            configuration = new Configuration();
+        } catch (IOException e) {
+            throw new ServletException("Configuration Error", e);
+        }
+    }
+}

src/main/java/de/devloop/mavor/Configuration.java

@@ -9,6 +9,8 @@ public class Configuration {
 
     private static final String DEVELOPMENT_PROPERTIES = "development.properties";
 
+    private static final String ENV_WEB_ROOT = "MAVOR_WEB_ROOT";
+
     private static final String ENV_MAVEN_EXECUTABLE = "MAVOR_MAVEN_EXECUTABLE";
     private static final String ENV_TEMP_DIR = "MAVOR_TEMP_DIR";
 
@@ -20,6 +22,7 @@ public class Configuration {
     private static final String ENV_OPENID_USERINFO_URL = "MAVOR_OPENID_USERINFO_URL";
     private static final String ENV_OPENID_LOGOUT_URL = "MAVOR_OPENID_LOGOUT_URL";
 
+    private String webRoot;
     private String mavenExecutable;
     private String tempDir;
     private String openIdClientId;
@@ -43,6 +46,7 @@ public class Configuration {
     }
 
     private void initByProperties(Properties properties) {
+        webRoot = getNullSafeProperty(properties, ENV_WEB_ROOT);
         mavenExecutable = getNullSafeProperty(properties, ENV_MAVEN_EXECUTABLE);
         tempDir = getNullSafeProperty(properties, ENV_TEMP_DIR);
         openIdClientId = getNullSafeProperty(properties, ENV_OPENID_CLIENT_ID);
@@ -58,6 +62,10 @@ public class Configuration {
         return Objects.requireNonNull(properties.getProperty(key));
     }
 
+    public String getWebRoot() {
+        return webRoot;
+    }
+
     public String getMavenExecutable() {
         return mavenExecutable;
     }

src/main/java/de/devloop/mavor/servlet/Authentication.java

@@ -2,7 +2,7 @@ package de.devloop.mavor.servlet;
 
 import java.io.IOException;
 
-import de.devloop.mavor.Configuration;
+import de.devloop.mavor.BaseServlet;
 import de.devloop.mavor.Session;
 import de.devloop.openid.AuthenticationUrl;
 import de.devloop.openid.OpenID;
@@ -12,12 +12,11 @@ import de.devloop.openid.Token;
 import de.devloop.openid.UserInfo;
 import jakarta.servlet.ServletException;
 import jakarta.servlet.annotation.WebServlet;
-import jakarta.servlet.http.HttpServlet;
 import jakarta.servlet.http.HttpServletRequest;
 import jakarta.servlet.http.HttpServletResponse;
 
 @WebServlet("/authenticate")
-public class Authentication extends HttpServlet {
+public class Authentication extends BaseServlet {
 
     private static final String PARAMETER_STATE = "state";
     private static final String PARAMETER_CODE = "code";
@@ -27,12 +26,7 @@ public class Authentication extends HttpServlet {
 
     @Override
     public void init() throws ServletException {
-        Configuration configuration;
+        super.init();
-        try {
-            configuration = new Configuration();
-        } catch (IOException e) {
-            throw new ServletException("Configuration Error", e);
-        }
 
         openIdConfiguration = new OpenIdConfiguration();
         openIdConfiguration.setAuthUrl(configuration.getOpenIdAuthUrl());

src/main/java/de/devloop/mavor/servlet/DownloadJars.java

@@ -18,7 +18,6 @@ import java.util.zip.ZipOutputStream;
 
 import de.devloop.mavor.Artifact;
 import de.devloop.mavor.AuthenticatedServlet;
-import de.devloop.mavor.Configuration;
 import jakarta.servlet.RequestDispatcher;
 import jakarta.servlet.ServletException;
 import jakarta.servlet.annotation.WebServlet;
@@ -35,17 +34,6 @@ public class DownloadJars extends AuthenticatedServlet {
     private static final String PARAMETER_POM = "pom";
     private static final String PARAMETER_TYPE = "type";
 
-    private Configuration configuration;
-
-    @Override
-    public void init() throws ServletException {
-        try {
-            configuration = new Configuration();
-        } catch (IOException e) {
-            throw new ServletException("Configuration Error", e);
-        }
-    }
-
     @Override
     protected void doAuthenticatedPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
         doAuthenticatedGet(req, resp);

src/main/java/de/devloop/mavor/servlet/DownloadZip.java

@@ -5,7 +5,6 @@ import java.io.FileInputStream;
 import java.io.IOException;
 
 import de.devloop.mavor.AuthenticatedServlet;
-import de.devloop.mavor.Configuration;
 import jakarta.servlet.ServletException;
 import jakarta.servlet.annotation.WebServlet;
 import jakarta.servlet.http.HttpServletRequest;
@@ -16,17 +15,6 @@ public class DownloadZip extends AuthenticatedServlet {
 
     private static final String PARAMETER_FILENAME = "file";
 
-    private Configuration configuration;
-
-    @Override
-    public void init() throws ServletException {
-        try {
-            configuration = new Configuration();
-        } catch (IOException e) {
-            throw new ServletException("Configuration Error", e);
-        }
-    }
-
     @Override
     protected void doAuthenticatedGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
         File tempDir = new File(configuration.getTempDir());

src/main/java/de/devloop/mavor/servlet/Logout.java

@@ -3,7 +3,6 @@ package de.devloop.mavor.servlet;
 import java.io.IOException;
 
 import de.devloop.mavor.AuthenticatedServlet;
-import de.devloop.mavor.Configuration;
 import jakarta.servlet.ServletException;
 import jakarta.servlet.annotation.WebServlet;
 import jakarta.servlet.http.HttpServletRequest;
@@ -12,16 +11,6 @@ import jakarta.servlet.http.HttpSession;
 
 @WebServlet("/logout")
 public class Logout extends AuthenticatedServlet {
-    private Configuration configuration;
-
-    @Override
-    public void init() throws ServletException {
-        try {
-            configuration = new Configuration();
-        } catch (IOException e) {
-            throw new ServletException("Configuration Error", e);
-        }
-    }
 
     @Override
     protected void doAuthenticatedGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {