1 files changed, 113 insertions, 0 deletions
diff --git a/java/com/google/gerrit/pgm/init/Browser.java b/java/com/google/gerrit/pgm/init/Browser.java
new file mode 100644
index 0000000000..2e49e13bf0
--- /dev/null
+++ b/java/com/google/gerrit/pgm/init/Browser.java
@@ -0,0 +1,113 @@
+// Copyright (C) 2009 The Android Open Source Project
+//
+// 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.google.gerrit.pgm.init;
+
+import com.google.common.base.Strings;
+import com.google.gerrit.pgm.init.api.InitUtil;
+import com.google.gerrit.server.config.GerritServerConfig;
+import com.google.inject.Inject;
+import java.io.IOException;
+import java.net.Socket;
+import java.net.URI;
+import java.net.URISyntaxException;
+import org.eclipse.jgit.lib.Config;
+
+/** Opens the user's web browser to the web UI. */
+public class Browser {
+  private final Config cfg;
+
+  @Inject
+  Browser(@GerritServerConfig Config cfg) {
+    this.cfg = cfg;
+  }
+
+  public void open() throws Exception {
+    open(null /* root page */);
+  }
+
+  public void open(String link) throws Exception {
+    String url = cfg.getString("gerrit", null, "canonicalWebUrl");
+    if (url == null) {
+      url = cfg.getString("httpd", null, "listenUrl");
+      if (url == null) {
+        return;
+      }
+      if (url.startsWith("proxy-")) {
+        url = url.substring("proxy-".length());
+      }
+    }
+
+    final URI uri;
+    try {
+      uri = InitUtil.toURI(url);
+    } catch (URISyntaxException e) {
+      System.err.println("error: invalid httpd.listenUrl: " + url);
+      return;
+    }
+    waitForServer(uri);
+    openBrowser(uri, link);
+  }
+
+  private void waitForServer(URI uri) throws IOException {
+    String host = uri.getHost();
+    int port = InitUtil.portOf(uri);
+    System.err.format("Waiting for server on %s:%d ... ", host, port);
+    System.err.flush();
+    for (; ; ) {
+      Socket s;
+      try {
+        s = new Socket(host, port);
+      } catch (IOException e) {
+        try {
+          Thread.sleep(100);
+        } catch (InterruptedException ie) {
+          // Ignored
+        }
+        continue;
+      }
+      s.close();
+      break;
+    }
+    System.err.println("OK");
+  }
+
+  private String resolveUrl(URI uri, String link) {
+    String url = cfg.getString("gerrit", null, "canonicalWebUrl");
+    if (Strings.isNullOrEmpty(url)) {
+      url = uri.toString();
+    }
+    if (!url.endsWith("/")) {
+      url += "/";
+    }
+    if (!Strings.isNullOrEmpty(link)) {
+      url += "#" + link;
+    }
+    return url;
+  }
+
+  private void openBrowser(URI uri, String link) {
+    String url = resolveUrl(uri, link);
+    System.err.format("Opening %s ...", url);
+    System.err.flush();
+    try {
+      org.h2.tools.Server.openBrowser(url);
+      System.err.println("OK");
+    } catch (Exception e) {
+      System.err.println("FAILED");
+      System.err.println("Open Gerrit with a JavaScript capable browser:");
+      System.err.println("  " + url);
+    }
+  }
+}