merge with develop

scm-webapp/src/main/java/sonia/scm/DefaultRootURL.java

@@ -0,0 +1,84 @@
+/*
+ * MIT License
+ *
+ * Copyright (c) 2020-present Cloudogu GmbH and Contributors
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+package sonia.scm;
+
+import com.google.inject.OutOfScopeException;
+import com.google.inject.ProvisionException;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import sonia.scm.config.ScmConfiguration;
+import sonia.scm.util.HttpUtil;
+
+import javax.inject.Inject;
+import javax.inject.Provider;
+import javax.servlet.http.HttpServletRequest;
+import java.net.MalformedURLException;
+import java.net.URL;
+import java.util.Optional;
+
+/**
+ * Default implementation of {@link RootURL}.
+ *
+ * @since 2.3.1
+ */
+public class DefaultRootURL implements RootURL {
+
+  private static final Logger LOG = LoggerFactory.getLogger(DefaultRootURL.class);
+
+  private final Provider<HttpServletRequest> requestProvider;
+  private final ScmConfiguration configuration;
+
+  @Inject
+  public DefaultRootURL(Provider<HttpServletRequest> requestProvider, ScmConfiguration configuration) {
+    this.requestProvider = requestProvider;
+    this.configuration = configuration;
+  }
+
+  @Override
+  public URL get() {
+    String url = fromRequest().orElse(configuration.getBaseUrl());
+    if (url == null) {
+      throw new IllegalStateException("The configured base url is empty. This can only happened if SCM-Manager has not received any requests.");
+    }
+    try {
+      return new URL(url);
+    } catch (MalformedURLException e) {
+      throw new IllegalStateException(String.format("base url \"%s\" is malformed", url), e);
+    }
+  }
+
+  private Optional<String> fromRequest() {
+    try {
+      HttpServletRequest request = requestProvider.get();
+      return Optional.of(HttpUtil.getCompleteUrl(request));
+    } catch (ProvisionException ex) {
+      if (ex.getCause() instanceof OutOfScopeException) {
+        LOG.debug("could not find request, fall back to base url from configuration");
+        return Optional.empty();
+      }
+      throw ex;
+    }
+  }
+}

scm-webapp/src/main/java/sonia/scm/lifecycle/modules/ScmServletModule.java

@@ -33,8 +33,10 @@ import com.google.inject.throwingproviders.ThrowingProviderBinder;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import sonia.scm.Default;
+import sonia.scm.DefaultRootURL;
 import sonia.scm.PushStateDispatcher;
 import sonia.scm.PushStateDispatcherProvider;
+import sonia.scm.RootURL;
 import sonia.scm.Undecorated;
 import sonia.scm.api.rest.ObjectMapperProvider;
 import sonia.scm.api.v2.resources.BranchLinkProvider;
@@ -239,6 +241,9 @@ class ScmServletModule extends ServletModule {
 
     // bind api link provider
     bind(BranchLinkProvider.class).to(DefaultBranchLinkProvider.class);
+
+    // bind url helper
+    bind(RootURL.class).to(DefaultRootURL.class);
   }
 
   private <T> void bind(Class<T> clazz, Class<? extends T> defaultImplementation) {