commit | author | age
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/* |
JM |
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* Copyright 2014 gitblit.com. |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0 |
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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package com.gitblit.servlet; |
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import java.io.ByteArrayInputStream; |
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import java.io.IOException; |
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import java.io.InputStream; |
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import java.io.UnsupportedEncodingException; |
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import java.net.URLEncoder; |
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import java.text.MessageFormat; |
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import java.text.ParseException; |
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import java.util.ArrayList; |
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import java.util.Date; |
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import java.util.HashMap; |
ca31f5
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import java.util.List; |
JM |
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import java.util.Map; |
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import java.util.TreeMap; |
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import javax.servlet.ServletContext; |
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import javax.servlet.ServletException; |
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import javax.servlet.http.HttpServlet; |
ca31f5
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import javax.servlet.http.HttpServletRequest; |
JM |
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import javax.servlet.http.HttpServletResponse; |
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import org.apache.tika.Tika; |
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import org.eclipse.jgit.lib.FileMode; |
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import org.eclipse.jgit.lib.MutableObjectId; |
JM |
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import org.eclipse.jgit.lib.ObjectLoader; |
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import org.eclipse.jgit.lib.ObjectReader; |
ca31f5
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import org.eclipse.jgit.lib.Repository; |
JM |
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import org.eclipse.jgit.revwalk.RevCommit; |
553e0f
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import org.eclipse.jgit.revwalk.RevWalk; |
JM |
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import org.eclipse.jgit.treewalk.TreeWalk; |
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import org.eclipse.jgit.treewalk.filter.PathFilter; |
ca31f5
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import org.slf4j.Logger; |
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import org.slf4j.LoggerFactory; |
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import com.gitblit.Constants; |
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import com.gitblit.Keys; |
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import com.gitblit.manager.IRepositoryManager; |
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import com.gitblit.manager.IRuntimeManager; |
ca31f5
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import com.gitblit.models.PathModel; |
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import com.gitblit.utils.ByteFormat; |
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import com.gitblit.utils.JGitUtils; |
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import com.gitblit.utils.MarkdownUtils; |
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import com.gitblit.utils.StringUtils; |
c8b728
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import com.google.inject.Inject; |
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import com.google.inject.Singleton; |
ca31f5
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/** |
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* Serves the content of a branch. |
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* |
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* @author James Moger |
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* |
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*/ |
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@Singleton |
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public class RawServlet extends HttpServlet { |
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private static final long serialVersionUID = 1L; |
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private transient Logger logger = LoggerFactory.getLogger(RawServlet.class); |
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private final IRuntimeManager runtimeManager; |
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private final IRepositoryManager repositoryManager; |
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@Inject |
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public RawServlet( |
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IRuntimeManager runtimeManager, |
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IRepositoryManager repositoryManager) { |
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this.runtimeManager = runtimeManager; |
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this.repositoryManager = repositoryManager; |
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} |
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/** |
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* Returns an url to this servlet for the specified parameters. |
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* |
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* @param baseURL |
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* @param repository |
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* @param branch |
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* @param path |
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* @return an url |
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*/ |
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public static String asLink(String baseURL, String repository, String branch, String path) { |
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if (baseURL.length() > 0 && baseURL.charAt(baseURL.length() - 1) == '/') { |
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baseURL = baseURL.substring(0, baseURL.length() - 1); |
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} |
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char fsc = '!'; |
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char c = GitblitContext.getManager(IRuntimeManager.class).getSettings().getChar(Keys.web.forwardSlashCharacter, '/'); |
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if (c != '/') { |
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fsc = c; |
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} |
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if (branch != null) { |
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branch = Repository.shortenRefName(branch).replace('/', fsc); |
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} |
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String encodedPath = path == null ? "" : path.replace('/', fsc); |
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return baseURL + Constants.RAW_PATH + repository + "/" + (branch == null ? "" : (branch + "/" + encodedPath)); |
ca31f5
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} |
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protected String getBranch(String repository, HttpServletRequest request) { |
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String pi = request.getPathInfo(); |
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String branch = pi.substring(pi.indexOf(repository) + repository.length() + 1); |
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int fs = branch.indexOf('/'); |
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if (fs > -1) { |
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branch = branch.substring(0, fs); |
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} |
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char c = runtimeManager.getSettings().getChar(Keys.web.forwardSlashCharacter, '/'); |
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return branch.replace('!', '/').replace(c, '/'); |
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} |
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protected String getPath(String repository, String branch, HttpServletRequest request) { |
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String base = repository + "/" + branch; |
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String pi = request.getPathInfo().substring(1); |
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if (pi.equals(base)) { |
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return ""; |
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} |
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String path = pi.substring(pi.indexOf(base) + base.length() + 1); |
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if (path.endsWith("/")) { |
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path = path.substring(0, path.length() - 1); |
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} |
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char c = runtimeManager.getSettings().getChar(Keys.web.forwardSlashCharacter, '/'); |
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return path.replace('!', '/').replace(c, '/'); |
ca31f5
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} |
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protected boolean renderIndex() { |
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return false; |
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} |
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/** |
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* Retrieves the specified resource from the specified branch of the |
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* repository. |
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* |
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* @param request |
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* @param response |
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* @throws javax.servlet.ServletException |
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* @throws java.io.IOException |
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*/ |
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private void processRequest(HttpServletRequest request, HttpServletResponse response) |
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throws ServletException, IOException { |
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String path = request.getPathInfo(); |
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if (path.toLowerCase().endsWith(".git")) { |
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// forward to url with trailing / |
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// this is important for relative pages links |
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response.sendRedirect(request.getServletPath() + path + "/"); |
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return; |
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} |
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if (path.charAt(0) == '/') { |
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// strip leading / |
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path = path.substring(1); |
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} |
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// determine repository and resource from url |
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String repository = path; |
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Repository r = null; |
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int terminator = repository.length(); |
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do { |
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repository = repository.substring(0, terminator); |
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r = repositoryManager.getRepository(repository, false); |
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terminator = repository.lastIndexOf('/'); |
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} while (r == null && terminator > -1 ); |
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ServletContext context = request.getSession().getServletContext(); |
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try { |
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if (r == null) { |
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// repository not found! |
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String mkd = MessageFormat.format( |
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"# Error\nSorry, no valid **repository** specified in this url: {0}!", |
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path); |
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error(response, mkd); |
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return; |
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} |
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// identify the branch |
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String branch = getBranch(repository, request); |
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if (StringUtils.isEmpty(branch)) { |
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branch = r.getBranch(); |
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if (branch == null) { |
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// no branches found! empty? |
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String mkd = MessageFormat.format( |
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"# Error\nSorry, no valid **branch** specified in this url: {0}!", |
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path); |
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error(response, mkd); |
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} else { |
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// redirect to default branch |
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String base = request.getRequestURI(); |
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String url = base + branch + "/"; |
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response.sendRedirect(url); |
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} |
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return; |
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} |
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// identify the requested path |
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String requestedPath = getPath(repository, branch, request); |
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// identify the commit |
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RevCommit commit = JGitUtils.getCommit(r, branch); |
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if (commit == null) { |
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// branch not found! |
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String mkd = MessageFormat.format( |
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"# Error\nSorry, the repository {0} does not have a **{1}** branch!", |
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repository, branch); |
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error(response, mkd); |
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return; |
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} |
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Map<String, String> quickContentTypes = new HashMap<>(); |
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quickContentTypes.put("html", "text/html"); |
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quickContentTypes.put("htm", "text/html"); |
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quickContentTypes.put("xml", "application/xml"); |
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quickContentTypes.put("json", "application/json"); |
ca31f5
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List<PathModel> pathEntries = JGitUtils.getFilesInPath(r, requestedPath, commit); |
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if (pathEntries.isEmpty()) { |
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// requested a specific resource |
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String file = StringUtils.getLastPathElement(requestedPath); |
ca31f5
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try { |
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String ext = StringUtils.getFileExtension(file).toLowerCase(); |
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// We can't parse out an extension for classic "dotfiles", so make a general assumption that |
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// they're text files to allow presenting them in browser instead of only for download. |
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// |
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// However, that only holds for files with no other extension included, for files that happen |
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// to start with a dot but also include an extension, process the extension normally. |
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// This logic covers .gitattributes, .gitignore, .zshrc, etc., but does not cover .mongorc.js, .zshrc.bak |
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boolean isExtensionlessDotfile = file.charAt(0) == '.' && (file.length() == 1 || file.indexOf('.', 1) < 0); |
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String contentType = isExtensionlessDotfile ? "text/plain" : quickContentTypes.get(ext); |
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if (contentType == null) { |
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List<String> exts = runtimeManager.getSettings().getStrings(Keys.web.prettyPrintExtensions); |
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if (exts.contains(ext)) { |
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// extension is a registered text type for pretty printing |
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contentType = "text/plain"; |
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} else { |
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// query Tika for the content type |
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Tika tika = new Tika(); |
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contentType = tika.detect(file); |
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} |
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} |
ca31f5
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if (contentType == null) { |
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// ask the container for the content type |
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contentType = context.getMimeType(requestedPath); |
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if (contentType == null) { |
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// still unknown content type, assume binary |
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contentType = "application/octet-stream"; |
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} |
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} |
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if (isTextType(contentType) || isTextDataType(contentType)) { |
ca31f5
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// load, interpret, and serve text content as UTF-8 |
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String [] encodings = runtimeManager.getSettings().getStrings(Keys.web.blobEncodings).toArray(new String[0]); |
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String content = JGitUtils.getStringContent(r, commit.getTree(), requestedPath, encodings); |
498cdc
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if (content == null) { |
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logger.error("RawServlet Failed to load {} {} {}", repository, commit.getName(), path); |
846ee5
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notFound(response, requestedPath, branch); |
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return; |
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} |
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byte [] bytes = content.getBytes(Constants.ENCODING); |
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setContentType(response, contentType); |
1946fe
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response.setContentLength(bytes.length); |
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ByteArrayInputStream is = new ByteArrayInputStream(bytes); |
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sendContent(response, JGitUtils.getCommitDate(commit), is); |
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ca31f5
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} else { |
1946fe
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// stream binary content directly from the repository |
846ee5
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if (!streamFromRepo(request, response, r, commit, requestedPath)) { |
JM |
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logger.error("RawServlet Failed to load {} {} {}", repository, commit.getName(), path); |
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notFound(response, requestedPath, branch); |
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} |
1946fe
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} |
ca31f5
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return; |
JM |
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} catch (Exception e) { |
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logger.error(null, e); |
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} |
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} else { |
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// path request |
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if (!request.getPathInfo().endsWith("/")) { |
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// redirect to trailing '/' url |
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response.sendRedirect(request.getServletPath() + request.getPathInfo() + "/"); |
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return; |
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} |
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if (renderIndex()) { |
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// locate and render an index file |
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Map<String, String> names = new TreeMap<String, String>(); |
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for (PathModel entry : pathEntries) { |
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names.put(entry.name.toLowerCase(), entry.name); |
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} |
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List<String> extensions = new ArrayList<String>(); |
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extensions.add("html"); |
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extensions.add("htm"); |
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String content = null; |
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for (String ext : extensions) { |
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String key = "index." + ext; |
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if (names.containsKey(key)) { |
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String fileName = names.get(key); |
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String fullPath = fileName; |
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if (!requestedPath.isEmpty()) { |
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fullPath = requestedPath + "/" + fileName; |
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} |
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1946fe
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String [] encodings = runtimeManager.getSettings().getStrings(Keys.web.blobEncodings).toArray(new String[0]); |
JM |
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String stringContent = JGitUtils.getStringContent(r, commit.getTree(), fullPath, encodings); |
ca31f5
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if (stringContent == null) { |
JM |
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continue; |
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} |
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content = stringContent; |
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requestedPath = fullPath; |
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break; |
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} |
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} |
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response.setContentType("text/html; charset=" + Constants.ENCODING); |
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byte [] bytes = content.getBytes(Constants.ENCODING); |
1946fe
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response.setContentLength(bytes.length); |
ca31f5
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JM |
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ByteArrayInputStream is = new ByteArrayInputStream(bytes); |
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sendContent(response, JGitUtils.getCommitDate(commit), is); |
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return; |
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} |
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344 |
} |
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// no content, document list or 404 page |
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347 |
if (pathEntries.isEmpty()) { |
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// default 404 page |
846ee5
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349 |
notFound(response, requestedPath, branch); |
ff17f7
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350 |
return; |
ca31f5
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351 |
} else { |
JM |
352 |
// |
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// directory list |
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// |
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response.setContentType("text/html"); |
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response.getWriter().append("<style>table th, table td { min-width: 150px; text-align: left; }</style>"); |
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response.getWriter().append("<table>"); |
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response.getWriter().append("<thead><tr><th>path</th><th>mode</th><th>size</th></tr>"); |
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response.getWriter().append("</thead>"); |
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response.getWriter().append("<tbody>"); |
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String pattern = "<tr><td><a href=\"{0}/{1}\">{1}</a></td><td>{2}</td><td>{3}</td></tr>"; |
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362 |
final ByteFormat byteFormat = new ByteFormat(); |
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363 |
if (!pathEntries.isEmpty()) { |
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364 |
if (pathEntries.get(0).path.indexOf('/') > -1) { |
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365 |
// we are in a subdirectory, add parent directory link |
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366 |
String pp = URLEncoder.encode(requestedPath, Constants.ENCODING); |
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367 |
pathEntries.add(0, new PathModel("..", pp + "/..", 0, FileMode.TREE.getBits(), null, null)); |
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368 |
} |
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369 |
} |
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370 |
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String basePath = request.getServletPath() + request.getPathInfo(); |
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372 |
if (basePath.charAt(basePath.length() - 1) == '/') { |
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373 |
// strip trailing slash |
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374 |
basePath = basePath.substring(0, basePath.length() - 1); |
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375 |
} |
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376 |
for (PathModel entry : pathEntries) { |
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377 |
String pp = URLEncoder.encode(entry.name, Constants.ENCODING); |
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378 |
response.getWriter().append(MessageFormat.format(pattern, basePath, pp, |
ff17f7
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JGitUtils.getPermissionsFromMode(entry.mode), |
JM |
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entry.isFile() ? byteFormat.format(entry.size) : "")); |
ca31f5
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} |
JM |
382 |
response.getWriter().append("</tbody>"); |
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response.getWriter().append("</table>"); |
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} |
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385 |
} catch (Throwable t) { |
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logger.error("Failed to write page to client", t); |
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} finally { |
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388 |
r.close(); |
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} |
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} |
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391 |
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1946fe
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392 |
protected boolean isTextType(String contentType) { |
JM |
393 |
if (contentType.startsWith("text/") |
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|| "application/json".equals(contentType) |
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395 |
|| "application/xml".equals(contentType)) { |
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396 |
return true; |
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397 |
} |
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return false; |
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399 |
} |
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400 |
|
c8b728
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401 |
protected boolean isTextDataType(String contentType) { |
JM |
402 |
if ("image/svg+xml".equals(contentType)) { |
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403 |
return true; |
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404 |
} |
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405 |
return false; |
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406 |
} |
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407 |
|
1946fe
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408 |
/** |
JM |
409 |
* Override all text types to be plain text. |
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410 |
* |
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411 |
* @param response |
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412 |
* @param contentType |
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413 |
*/ |
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414 |
protected void setContentType(HttpServletResponse response, String contentType) { |
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415 |
if (isTextType(contentType)) { |
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416 |
response.setContentType("text/plain"); |
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417 |
} else { |
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418 |
response.setContentType(contentType); |
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419 |
} |
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420 |
} |
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421 |
|
846ee5
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422 |
protected boolean streamFromRepo(HttpServletRequest request, HttpServletResponse response, Repository repository, |
553e0f
|
423 |
RevCommit commit, String requestedPath) throws IOException { |
JM |
424 |
|
846ee5
|
425 |
boolean served = false; |
553e0f
|
426 |
RevWalk rw = new RevWalk(repository); |
JM |
427 |
TreeWalk tw = new TreeWalk(repository); |
|
428 |
try { |
|
429 |
tw.reset(); |
|
430 |
tw.addTree(commit.getTree()); |
|
431 |
PathFilter f = PathFilter.create(requestedPath); |
|
432 |
tw.setFilter(f); |
|
433 |
tw.setRecursive(true); |
|
434 |
MutableObjectId id = new MutableObjectId(); |
|
435 |
ObjectReader reader = tw.getObjectReader(); |
|
436 |
while (tw.next()) { |
|
437 |
FileMode mode = tw.getFileMode(0); |
|
438 |
if (mode == FileMode.GITLINK || mode == FileMode.TREE) { |
|
439 |
continue; |
|
440 |
} |
|
441 |
tw.getObjectId(id, 0); |
|
442 |
|
846ee5
|
443 |
String filename = StringUtils.getLastPathElement(requestedPath); |
JM |
444 |
try { |
|
445 |
String userAgent = request.getHeader("User-Agent"); |
|
446 |
if (userAgent != null && userAgent.indexOf("MSIE 5.5") > -1) { |
|
447 |
response.setHeader("Content-Disposition", "filename=\"" |
|
448 |
+ URLEncoder.encode(filename, Constants.ENCODING) + "\""); |
|
449 |
} else if (userAgent != null && userAgent.indexOf("MSIE") > -1) { |
|
450 |
response.setHeader("Content-Disposition", "attachment; filename=\"" |
|
451 |
+ URLEncoder.encode(filename, Constants.ENCODING) + "\""); |
|
452 |
} else { |
|
453 |
response.setHeader("Content-Disposition", "attachment; filename=\"" |
|
454 |
+ new String(filename.getBytes(Constants.ENCODING), "latin1") + "\""); |
|
455 |
} |
|
456 |
} |
|
457 |
catch (UnsupportedEncodingException e) { |
|
458 |
response.setHeader("Content-Disposition", "attachment; filename=\"" + filename + "\""); |
|
459 |
} |
|
460 |
|
553e0f
|
461 |
long len = reader.getObjectSize(id, org.eclipse.jgit.lib.Constants.OBJ_BLOB); |
846ee5
|
462 |
setContentType(response, "application/octet-stream"); |
553e0f
|
463 |
response.setIntHeader("Content-Length", (int) len); |
JM |
464 |
ObjectLoader ldr = repository.open(id); |
|
465 |
ldr.copyTo(response.getOutputStream()); |
846ee5
|
466 |
served = true; |
553e0f
|
467 |
} |
JM |
468 |
} finally { |
a1cee6
|
469 |
tw.close(); |
553e0f
|
470 |
rw.dispose(); |
JM |
471 |
} |
|
472 |
|
|
473 |
response.flushBuffer(); |
846ee5
|
474 |
return served; |
553e0f
|
475 |
} |
JM |
476 |
|
818973
|
477 |
protected void sendContent(HttpServletResponse response, Date date, InputStream is) throws ServletException, IOException { |
JM |
478 |
|
ca31f5
|
479 |
try { |
JM |
480 |
byte[] tmp = new byte[8192]; |
|
481 |
int len = 0; |
|
482 |
while ((len = is.read(tmp)) > -1) { |
|
483 |
response.getOutputStream().write(tmp, 0, len); |
|
484 |
} |
|
485 |
} finally { |
|
486 |
is.close(); |
|
487 |
} |
|
488 |
response.flushBuffer(); |
|
489 |
} |
|
490 |
|
846ee5
|
491 |
protected void notFound(HttpServletResponse response, String requestedPath, String branch) |
JM |
492 |
throws ParseException, ServletException, IOException { |
|
493 |
String str = MessageFormat.format( |
|
494 |
"# Error\nSorry, the requested resource **{0}** was not found in **{1}**.", |
|
495 |
requestedPath, branch); |
|
496 |
response.setStatus(HttpServletResponse.SC_NOT_FOUND); |
|
497 |
error(response, str); |
|
498 |
} |
|
499 |
|
ca31f5
|
500 |
private void error(HttpServletResponse response, String mkd) throws ServletException, |
JM |
501 |
IOException, ParseException { |
|
502 |
String content = MarkdownUtils.transformMarkdown(mkd); |
|
503 |
response.setContentType("text/html; charset=" + Constants.ENCODING); |
|
504 |
response.getWriter().write(content); |
|
505 |
} |
|
506 |
|
|
507 |
@Override |
|
508 |
protected void doPost(HttpServletRequest request, HttpServletResponse response) |
|
509 |
throws ServletException, IOException { |
|
510 |
processRequest(request, response); |
|
511 |
} |
|
512 |
|
|
513 |
@Override |
|
514 |
protected void doGet(HttpServletRequest request, HttpServletResponse response) |
|
515 |
throws ServletException, IOException { |
|
516 |
processRequest(request, response); |
|
517 |
} |
|
518 |
} |