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