1 files changed, 148 insertions, 0 deletions
diff --git a/java/com/google/gerrit/httpd/raw/ToolServlet.java b/java/com/google/gerrit/httpd/raw/ToolServlet.java
new file mode 100644
index 0000000000..fcdd21d3be
--- /dev/null
+++ b/java/com/google/gerrit/httpd/raw/ToolServlet.java
@@ -0,0 +1,148 @@
+// Copyright (C) 2010 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.httpd.raw;
+
+import static com.google.gerrit.httpd.HtmlDomUtil.compress;
+import static com.google.gerrit.httpd.HtmlDomUtil.newDocument;
+import static com.google.gerrit.httpd.HtmlDomUtil.toUTF8;
+import static java.nio.charset.StandardCharsets.UTF_8;
+import static javax.servlet.http.HttpServletResponse.SC_NOT_FOUND;
+import static org.eclipse.jgit.util.HttpSupport.HDR_CACHE_CONTROL;
+import static org.eclipse.jgit.util.HttpSupport.HDR_EXPIRES;
+import static org.eclipse.jgit.util.HttpSupport.HDR_PRAGMA;
+
+import com.google.gerrit.common.Version;
+import com.google.gerrit.server.tools.ToolsCatalog;
+import com.google.gerrit.server.tools.ToolsCatalog.Entry;
+import com.google.gwtjsonrpc.server.RPCServletUtils;
+import com.google.inject.Inject;
+import com.google.inject.Singleton;
+import java.io.IOException;
+import java.io.OutputStream;
+import javax.servlet.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import org.w3c.dom.Document;
+import org.w3c.dom.Element;
+
+/** Sends the client side tools we keep within our software. */
+@Singleton
+public class ToolServlet extends HttpServlet {
+  private static final long serialVersionUID = 1L;
+  private final ToolsCatalog toc;
+
+  @Inject
+  ToolServlet(ToolsCatalog toc) {
+    this.toc = toc;
+  }
+
+  @Override
+  protected void doGet(HttpServletRequest req, HttpServletResponse rsp) throws IOException {
+    Entry ent = toc.get(req.getPathInfo());
+    if (ent == null) {
+      rsp.sendError(SC_NOT_FOUND);
+      return;
+    }
+
+    switch (ent.getType()) {
+      case FILE:
+        doGetFile(ent, rsp);
+        break;
+
+      case DIR:
+        doGetDirectory(ent, req, rsp);
+        break;
+
+      default:
+        rsp.sendError(SC_NOT_FOUND);
+        break;
+    }
+  }
+
+  private void doGetFile(Entry ent, HttpServletResponse rsp) throws IOException {
+    byte[] tosend = ent.getBytes();
+
+    rsp.setDateHeader(HDR_EXPIRES, 0L);
+    rsp.setHeader(HDR_PRAGMA, "no-cache");
+    rsp.setHeader(HDR_CACHE_CONTROL, "no-cache, must-revalidate");
+    rsp.setContentType("application/octet-stream");
+    rsp.setContentLength(tosend.length);
+    try (OutputStream out = rsp.getOutputStream()) {
+      out.write(tosend);
+    }
+  }
+
+  private void doGetDirectory(Entry ent, HttpServletRequest req, HttpServletResponse rsp)
+      throws IOException {
+    String path = "/tools/" + ent.getPath();
+    Document page = newDocument();
+
+    Element html = page.createElement("html");
+    Element head = page.createElement("head");
+    Element title = page.createElement("title");
+    Element body = page.createElement("body");
+
+    page.appendChild(html);
+    html.appendChild(head);
+    html.appendChild(body);
+    head.appendChild(title);
+
+    title.setTextContent("Gerrit Code Review - " + path);
+
+    Element h1 = page.createElement("h1");
+    h1.setTextContent(title.getTextContent());
+    body.appendChild(h1);
+
+    Element ul = page.createElement("ul");
+    body.appendChild(ul);
+
+    for (Entry e : ent.getChildren()) {
+      String name = e.getName();
+      if (e.getType() == Entry.Type.DIR && !name.endsWith("/")) {
+        name += "/";
+      }
+
+      Element li = page.createElement("li");
+      Element a = page.createElement("a");
+      a.setAttribute("href", name);
+      a.setTextContent(name);
+      li.appendChild(a);
+      ul.appendChild(li);
+    }
+
+    body.appendChild(page.createElement("hr"));
+
+    Element footer = page.createElement("p");
+    footer.setAttribute("style", "text-align: right; font-style: italic");
+    footer.setTextContent("Powered by Gerrit Code Review " + Version.getVersion());
+    body.appendChild(footer);
+
+    byte[] tosend = toUTF8(page);
+    if (RPCServletUtils.acceptsGzipEncoding(req)) {
+      rsp.setHeader("Content-Encoding", "gzip");
+      tosend = compress(tosend);
+    }
+
+    rsp.setDateHeader(HDR_EXPIRES, 0L);
+    rsp.setHeader(HDR_PRAGMA, "no-cache");
+    rsp.setHeader(HDR_CACHE_CONTROL, "no-cache, must-revalidate");
+    rsp.setContentType("text/html");
+    rsp.setCharacterEncoding(UTF_8.name());
+    rsp.setContentLength(tosend.length);
+    try (OutputStream out = rsp.getOutputStream()) {
+      out.write(tosend);
+    }
+  }
+}