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/*
* Copyright 2013 gitblit.com.
*
* 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.gitblit;
import java.io.IOException;
import java.text.MessageFormat;
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.gitblit.Constants.AccessRestrictionType;
import com.gitblit.models.RepositoryModel;
import com.gitblit.models.UserModel;
import com.gitblit.utils.StringUtils;
/**
* Handles requests for Sparkleshare Invites
*
* @author James Moger
*
*/
public class SparkleShareInviteServlet extends HttpServlet {
private static final long serialVersionUID = 1L;
public SparkleShareInviteServlet() {
super();
}
/**
* Returns an Sparkleshare invite url to this servlet for the repository.
* https://github.com/hbons/SparkleShare/wiki/Invites
*
* @param baseURL
* @param repository
* @param username
* @return an url
*/
public static String asLink(String baseURL, String repository, String username) {
if (baseURL.length() > 0 && baseURL.charAt(baseURL.length() - 1) == '/') {
baseURL = baseURL.substring(0, baseURL.length() - 1);
}
String url = baseURL + Constants.SPARKLESHARE_INVITE_PATH
+ ((StringUtils.isEmpty(username) ? "" : (username + "@")))
+ repository + ".xml";
url = url.replace("https://", "sparkleshare://");
url = url.replace("http://", "sparkleshare-unsafe://");
return url;
}
@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, java.io.IOException {
processRequest(request, response);
}
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
processRequest(request, response);
}
protected void processRequest(javax.servlet.http.HttpServletRequest request,
javax.servlet.http.HttpServletResponse response) throws javax.servlet.ServletException,
java.io.IOException {
// extract repo name from request
String path = request.getPathInfo();
if (path != null && path.length() > 1) {
if (path.charAt(0) == '/') {
path = path.substring(1);
}
}
// trim trailing .xml
if (path.endsWith(".xml")) {
path = path.substring(0, path.length() - 4);
}
String username = null;
int fetch = path.indexOf('@');
if (fetch > -1) {
username = path.substring(0, fetch);
path = path.substring(fetch + 1);
}
UserModel user;
if (StringUtils.isEmpty(username)) {
user = GitBlit.self().authenticate(request);
} else {
user = GitBlit.self().getUserModel(username);
}
if (user == null) {
user = UserModel.ANONYMOUS;
username = "";
}
// ensure that the requested repository exists and is sparkleshared
RepositoryModel model = GitBlit.self().getRepositoryModel(path);
if (model == null) {
response.setStatus(HttpServletResponse.SC_NOT_FOUND);
response.getWriter().append(MessageFormat.format("Repository \"{0}\" not found!", path));
return;
} else if (!model.isSparkleshared()) {
response.setStatus(HttpServletResponse.SC_FORBIDDEN);
response.getWriter().append(MessageFormat.format("Repository \"{0}\" is not sparkleshared!", path));
return;
}
if (GitBlit.getBoolean(Keys.git.enableGitServlet, true)
|| GitBlit.getInteger(Keys.git.daemonPort, 0) > 0) {
// Gitblit as server
// determine username for repository url
if (model.accessRestriction.exceeds(AccessRestrictionType.NONE)) {
if (!user.canRewindRef(model)) {
response.setStatus(HttpServletResponse.SC_FORBIDDEN);
response.getWriter().append(MessageFormat.format("\"{0}\" does not have RW+ permissions for {1}!", user.username, path));
return;
}
}
if (model.accessRestriction.exceeds(AccessRestrictionType.NONE)) {
username = user.username + "@";
} else {
username = "";
}
String serverPort = "";
if (request.getScheme().equals("https")) {
if (request.getServerPort() != 443) {
serverPort = ":" + request.getServerPort();
}
} else if (request.getScheme().equals("http")) {
if (request.getServerPort() != 80) {
serverPort = ":" + request.getServerPort();
}
}
// assume http/https serving
String scheme = request.getScheme();
String servletPath = Constants.GIT_PATH;
// try to switch to git://, if git servlet disabled and repo has no restrictions
if (!GitBlit.getBoolean(Keys.git.enableGitServlet, true)
&& (GitBlit.getInteger(Keys.git.daemonPort, 0) > 0)
&& AccessRestrictionType.NONE == model.accessRestriction) {
scheme = "git";
servletPath = "/";
serverPort = GitBlit.getString(Keys.git.daemonPort, "");
}
// construct Sparkleshare invite
StringBuilder sb = new StringBuilder();
sb.append("<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n");
sb.append("<sparkleshare><invite>\n");
sb.append(MessageFormat.format("<address>{0}://{1}{2}{3}{4}</address>\n", scheme, username, request.getServerName(), serverPort, request.getContextPath()));
sb.append(MessageFormat.format("<remote_path>{0}{1}</remote_path>\n", servletPath, model.name));
if (GitBlit.getInteger(Keys.fanout.port, 0) > 0) {
// Gitblit is running it's own fanout service for pubsub notifications
sb.append(MessageFormat.format("<announcements_url>tcp://{0}:{1}</announcements_url>\n", request.getServerName(), GitBlit.getString(Keys.fanout.port, "")));
}
sb.append("</invite></sparkleshare>\n");
// write invite to client
response.setContentType("application/xml");
response.setContentLength(sb.length());
response.getWriter().append(sb.toString());
} else {
// Gitblit as viewer, repository access handled externally so
// assume RW+ permission
List<String> others = GitBlit.getStrings(Keys.web.otherUrls);
if (others.size() == 0) {
return;
}
String address = MessageFormat.format(others.get(0), "", username);
StringBuilder sb = new StringBuilder();
sb.append("<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n");
sb.append("<sparkleshare><invite>\n");
sb.append(MessageFormat.format("<address>{0}</address>\n", address));
sb.append(MessageFormat.format("<remote_path>{0}</remote_path>\n", model.name));
if (GitBlit.getInteger(Keys.fanout.port, 0) > 0) {
// Gitblit is running it's own fanout service for pubsub notifications
sb.append(MessageFormat.format("<announcements_url>tcp://{0}:{1}</announcements_url>\n", request.getServerName(), GitBlit.getString(Keys.fanout.port, "")));
}
sb.append("</invite></sparkleshare>\n");
// write invite to client
response.setContentType("application/xml");
response.setContentLength(sb.length());
response.getWriter().append(sb.toString());
}
}
}
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