| /* |
| * Copyright (C) 2015, Sasa Zivkov <sasa.zivkov@sap.com> |
| * and other copyright owners as documented in the project's IP log. |
| * |
| * This program and the accompanying materials are made available |
| * under the terms of the Eclipse Distribution License v1.0 which |
| * accompanies this distribution, is reproduced below, and is |
| * available at http://www.eclipse.org/org/documents/edl-v10.php |
| * |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or |
| * without modification, are permitted provided that the following |
| * conditions are met: |
| * |
| * - Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * |
| * - Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following |
| * disclaimer in the documentation and/or other materials provided |
| * with the distribution. |
| * |
| * - Neither the name of the Eclipse Foundation, Inc. nor the |
| * names of its contributors may be used to endorse or promote |
| * products derived from this software without specific prior |
| * written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND |
| * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, |
| * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR |
| * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
| * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
| * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF |
| * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| package org.eclipse.jgit.lfs.server; |
| |
| import static java.nio.charset.StandardCharsets.UTF_8; |
| import static javax.servlet.http.HttpServletResponse.SC_OK; |
| import static javax.servlet.http.HttpServletResponse.SC_SERVICE_UNAVAILABLE; |
| |
| import java.io.BufferedReader; |
| import java.io.BufferedWriter; |
| import java.io.IOException; |
| import java.io.InputStreamReader; |
| import java.io.OutputStreamWriter; |
| import java.io.Reader; |
| import java.io.Writer; |
| import java.util.List; |
| |
| import javax.servlet.ServletException; |
| import javax.servlet.http.HttpServlet; |
| import javax.servlet.http.HttpServletRequest; |
| import javax.servlet.http.HttpServletResponse; |
| |
| import com.google.gson.FieldNamingPolicy; |
| import com.google.gson.Gson; |
| import com.google.gson.GsonBuilder; |
| |
| /** |
| * LFS protocol handler implementing the LFS batch API [1] |
| * |
| * [1] https://github.com/github/git-lfs/blob/master/docs/api/http-v1-batch.md |
| * |
| * @since 4.3 |
| */ |
| public abstract class LfsProtocolServlet extends HttpServlet { |
| |
| private static final long serialVersionUID = 1L; |
| |
| private static final String CONTENTTYPE_VND_GIT_LFS_JSON = "application/vnd.git-lfs+json"; //$NON-NLS-1$ |
| |
| private Gson gson = createGson(); |
| |
| /** |
| * Get the large file repository |
| * |
| * @return the large file repository storing large files |
| */ |
| protected abstract LargeFileRepository getLargeFileRepository(); |
| |
| @Override |
| protected void doPost(HttpServletRequest req, HttpServletResponse res) |
| throws ServletException, IOException { |
| res.setStatus(SC_OK); |
| res.setContentType(CONTENTTYPE_VND_GIT_LFS_JSON); |
| |
| Writer w = new BufferedWriter( |
| new OutputStreamWriter(res.getOutputStream(), UTF_8)); |
| |
| Reader r = new BufferedReader(new InputStreamReader(req.getInputStream(), UTF_8)); |
| LfsRequest request = gson.fromJson(r, LfsRequest.class); |
| |
| LargeFileRepository repo = getLargeFileRepository(); |
| if (repo == null) { |
| res.setStatus(SC_SERVICE_UNAVAILABLE); |
| return; |
| } |
| |
| TransferHandler handler = TransferHandler |
| .forOperation(request.operation, repo, request.objects); |
| gson.toJson(handler.process(), w); |
| w.flush(); |
| } |
| |
| private static class LfsRequest { |
| String operation; |
| |
| List<LfsObject> objects; |
| } |
| |
| private static Gson createGson() { |
| GsonBuilder gb = new GsonBuilder() |
| .setFieldNamingPolicy( |
| FieldNamingPolicy.LOWER_CASE_WITH_UNDERSCORES) |
| .setPrettyPrinting().disableHtmlEscaping(); |
| return gb.create(); |
| } |
| } |