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/*
* Copyright 2012 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.auth;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import org.apache.wicket.util.io.IOUtils;
import com.gitblit.Constants;
import com.gitblit.Constants.AccountType;
import com.gitblit.Keys;
import com.gitblit.auth.AuthenticationProvider.UsernamePasswordAuthenticationProvider;
import com.gitblit.models.UserModel;
import com.gitblit.utils.ConnectionUtils;
import com.gitblit.utils.StringUtils;
import com.google.gson.Gson;
/**
* Implementation of Redmine authentication.<br>
* you can login to gitblit with Redmine user id and api key.
*/
public class RedmineAuthProvider extends UsernamePasswordAuthenticationProvider {
private String testingJson;
private class RedmineCurrent {
private class RedmineUser {
public String login;
public String firstname;
public String lastname;
public String mail;
}
public RedmineUser user;
}
public RedmineAuthProvider() {
super("redmine");
}
@Override
public void setup() {
}
@Override
public boolean supportsCredentialChanges() {
return false;
}
@Override
public boolean supportsDisplayNameChanges() {
return false;
}
@Override
public boolean supportsEmailAddressChanges() {
return false;
}
@Override
public boolean supportsTeamMembershipChanges() {
return false;
}
@Override
public AccountType getAccountType() {
return AccountType.REDMINE;
}
@Override
public UserModel authenticate(String username, char[] password) {
String jsonString = null;
try {
// first attempt by username/password
jsonString = getCurrentUserAsJson(username, password);
} catch (Exception e1) {
logger.warn("Failed to authenticate via username/password against Redmine");
try {
// second attempt is by apikey
jsonString = getCurrentUserAsJson(null, password);
username = null;
} catch (Exception e2) {
logger.error("Failed to authenticate via apikey against Redmine", e2);
return null;
}
}
if (StringUtils.isEmpty(jsonString)) {
logger.error("Received empty authentication response from Redmine");
return null;
}
RedmineCurrent current = null;
try {
current = new Gson().fromJson(jsonString, RedmineCurrent.class);
} catch (Exception e) {
logger.error("Failed to deserialize Redmine json response: " + jsonString, e);
return null;
}
if (StringUtils.isEmpty(username)) {
// if the username has been reset because of apikey authentication
// then use the email address of the user. this is the original
// behavior as contributed by github/mallowlabs
username = current.user.mail;
}
UserModel user = userManager.getUserModel(username);
if (user == null) {
// create user object for new authenticated user
user = new UserModel(username.toLowerCase());
}
// create a user cookie
setCookie(user, password);
// update user attributes from Redmine
user.accountType = getAccountType();
user.displayName = current.user.firstname + " " + current.user.lastname;
user.emailAddress = current.user.mail;
user.password = Constants.EXTERNAL_ACCOUNT;
// TODO consider Redmine group mapping for team membership
// http://www.redmine.org/projects/redmine/wiki/Rest_Users
// push the changes to the backing user service
updateUser(user);
return user;
}
private String getCurrentUserAsJson(String username, char [] password) throws IOException {
if (testingJson != null) { // for testing
return testingJson;
}
String url = this.settings.getString(Keys.realm.redmine.url, "");
if (!url.endsWith("/")) {
url = url.concat("/");
}
HttpURLConnection http;
if (username == null) {
// apikey authentication
String apiKey = String.valueOf(password);
String apiUrl = url + "users/current.json?key=" + apiKey;
http = (HttpURLConnection) ConnectionUtils.openConnection(apiUrl, null, null);
} else {
// username/password BASIC authentication
String apiUrl = url + "users/current.json";
http = (HttpURLConnection) ConnectionUtils.openConnection(apiUrl, username, password);
}
http.setRequestMethod("GET");
http.connect();
InputStreamReader reader = new InputStreamReader(http.getInputStream());
return IOUtils.toString(reader);
}
/**
* set json response. do NOT invoke from production code.
* @param json json
*/
public void setTestingCurrentUserAsJson(String json) {
this.testingJson = json;
}
}
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