divided Backend into several controllers

Signed-off-by: Stephan Richter <s.richter@srsoftware.de>
This commit is contained in:
2024-07-25 01:26:23 +02:00
parent 493c642992
commit 0c1baee8e0
19 changed files with 410 additions and 291 deletions

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/* © SRSoftware 2024 */
package de.srsoftware.oidc.backend;
import static de.srsoftware.oidc.api.Constants.*;
import static de.srsoftware.oidc.api.Permission.MANAGE_CLIENTS;
import static de.srsoftware.oidc.api.User.*;
import static java.lang.System.Logger.Level.ERROR;
import static java.lang.System.Logger.Level.WARNING;
import static java.net.HttpURLConnection.*;
import com.sun.net.httpserver.HttpExchange;
import de.srsoftware.cookies.SessionToken;
import de.srsoftware.oidc.api.*;
import java.io.IOException;
import java.util.Arrays;
import java.util.HashSet;
import java.util.Map;
import java.util.Optional;
import java.util.stream.Collectors;
import org.json.JSONObject;
public class Backend extends PathHandler {
private static final System.Logger LOG = System.getLogger(Backend.class.getSimpleName());
private final AuthorizationService authorizations;
private final SessionService sessions;
private final UserService users;
private final ClientService clients;
public Backend(AuthorizationService authorizationService, ClientService clientService, SessionService sessionService, UserService userService) {
authorizations = authorizationService;
clients = clientService;
sessions = sessionService;
users = userService;
}
private boolean addClient(HttpExchange ex, Session session) throws IOException {
if (!session.user().hasPermission(MANAGE_CLIENTS)) return badRequest(ex, "NOT ALLOWED");
var json = json(ex);
var redirects = new HashSet<String>();
for (Object o : json.getJSONArray(REDIRECT_URIS)) {
if (o instanceof String s) redirects.add(s);
}
var client = new Client(json.getString(CLIENT_ID), json.getString(NAME), json.getString(SECRET), redirects);
clients.add(client);
return sendContent(ex, client);
}
private boolean authorize(HttpExchange ex, Session session) throws IOException {
var user = session.user();
var json = json(ex);
var clientId = json.getString(CLIENT_ID);
var redirect = json.getString(REDIRECT_URI);
var optClient = clients.getClient(clientId);
if (optClient.isEmpty()) return badRequest(ex, Map.of(CAUSE, "unknown client", CLIENT_ID, clientId));
var client = optClient.get();
if (!client.redirectUris().contains(redirect)) return badRequest(ex, Map.of(CAUSE, "unknown redirect uri", REDIRECT_URI, redirect));
if (!authorizations.isAuthorized(client, session.user())) {
if (json.has(CONFIRMED) && json.getBoolean(CONFIRMED)) {
authorizations.authorize(client, user, null);
} else {
return sendContent(ex, Map.of(CONFIRMED, false, NAME, client.name()));
}
}
var state = json.getString(STATE);
var code = client.generateCode();
return sendContent(ex, Map.of(CONFIRMED, true, CODE, code, REDIRECT_URI, redirect, STATE, state));
}
private boolean clients(HttpExchange ex, Session session) throws IOException {
var user = session.user();
if (!user.hasPermission(MANAGE_CLIENTS)) return sendEmptyResponse(HTTP_FORBIDDEN, ex);
var json = new JSONObject();
clients.listClients().forEach(client -> json.put(client.id(), Map.of("name", client.name(), "redirect_uris", client.redirectUris())));
return sendContent(ex, json);
}
private boolean deleteClient(HttpExchange ex, Session session) throws IOException {
if (!session.user().hasPermission(MANAGE_CLIENTS)) return badRequest(ex, "NOT ALLOWED");
var json = json(ex);
var id = json.getString(CLIENT_ID);
clients.getClient(id).ifPresent(clients::remove);
return sendEmptyResponse(HTTP_OK, ex);
}
private boolean doLogin(HttpExchange ex) throws IOException {
var body = json(ex);
var username = body.has(USERNAME) ? body.getString(USERNAME) : null;
var password = body.has(PASSWORD) ? body.getString(PASSWORD) : null;
Optional<User> user = users.load(username, password);
if (user.isPresent()) return sendUserAndCookie(ex, sessions.createSession(user.get()));
return sendEmptyResponse(HTTP_UNAUTHORIZED, ex);
}
@Override
public boolean doDelete(String path, HttpExchange ex) throws IOException {
var optSession = getSession(ex);
if (optSession.isEmpty()) return sendEmptyResponse(HTTP_UNAUTHORIZED, ex);
// post-login paths
var session = optSession.get();
switch (path) {
case "/client":
return deleteClient(ex, session);
}
LOG.log(ERROR, "not implemented");
return sendEmptyResponse(HTTP_NOT_FOUND, ex);
}
@Override
public boolean doGet(String path, HttpExchange ex) throws IOException {
// pre-login paths
switch (path) {
case "/openid-configuration":
return openidConfig(ex);
}
var optSession = getSession(ex);
if (optSession.isEmpty()) return sendEmptyResponse(HTTP_UNAUTHORIZED, ex);
// post-login paths
var session = optSession.get();
switch (path) {
case "/logout":
return logout(ex, session);
}
LOG.log(WARNING, "not implemented");
return sendEmptyResponse(HTTP_NOT_FOUND, ex);
}
@Override
public boolean doPost(String path, HttpExchange ex) throws IOException {
// pre-login paths
switch (path) {
case "/login":
return doLogin(ex);
case "/token":
return provideToken(ex);
}
var optSession = getSession(ex);
if (optSession.isEmpty()) return sendEmptyResponse(HTTP_UNAUTHORIZED, ex);
// post-login paths
var session = optSession.get();
switch (path) {
case "/add/client":
return addClient(ex, session);
case "/authorize":
return authorize(ex, session);
case "/client":
return loadClient(ex, session);
case "/clients":
return clients(ex, session);
case "/update/password":
return updatePassword(ex, session);
case "/update/user":
return updateUser(ex, session);
case "/user":
return sendUserAndCookie(ex, session);
}
LOG.log(WARNING, "not implemented");
return sendEmptyResponse(HTTP_NOT_FOUND, ex);
}
private Optional<Session> getSession(HttpExchange ex) {
return SessionToken.from(ex).map(SessionToken::sessionId).flatMap(sessions::retrieve);
}
private boolean loadClient(HttpExchange ex, Session session) throws IOException {
if (!session.user().hasPermission(MANAGE_CLIENTS)) return sendEmptyResponse(HTTP_FORBIDDEN, ex);
var json = json(ex);
if (json.has(CLIENT_ID)) {
var clientID = json.getString(CLIENT_ID);
var client = clients.getClient(clientID).map(Client::map).map(JSONObject::new);
if (client.isPresent()) return sendContent(ex, client.get());
}
return sendEmptyResponse(HTTP_NOT_FOUND, ex);
}
private boolean logout(HttpExchange ex, Session session) throws IOException {
sessions.dropSession(session.id());
new SessionToken("").addTo(ex);
return sendEmptyResponse(HTTP_OK, ex);
}
private boolean provideToken(HttpExchange ex) throws IOException {
var map = deserialize(body(ex));
LOG.log(WARNING, "map: {0}", map);
LOG.log(ERROR, "{0}.provideToken(ex) not implemented!", getClass().getSimpleName());
var grantType = map.get(GRANT_TYPE);
if (!ATUH_CODE.equals(grantType)) sendContent(ex, HTTP_BAD_REQUEST, Map.of(ERROR, "unknown grant type", GRANT_TYPE, grantType));
return sendEmptyResponse(HTTP_NOT_FOUND, ex);
}
private Map<String, String> deserialize(String body) {
return Arrays.stream(body.split("&")).map(s -> s.split("=")).collect(Collectors.toMap(arr -> arr[0], arr -> arr[1]));
}
private boolean openidConfig(HttpExchange ex) throws IOException {
var host = hostname(ex);
return sendContent(ex, Map.of("token_endpoint", host + "/api/token", "authorization_endpoint", host + "/web/authorization.html", "userinfo_endpoint", host + "/api/userinfo", "jwks_uri", host + "/api/jwks"));
}
private boolean sendUserAndCookie(HttpExchange ex, Session session) throws IOException {
new SessionToken(session.id()).addTo(ex);
return sendContent(ex, session.user().map(false));
}
private boolean updatePassword(HttpExchange ex, Session session) throws IOException {
var user = session.user();
var json = json(ex);
var uuid = json.getString(UUID);
if (!uuid.equals(user.uuid())) {
return sendEmptyResponse(HTTP_FORBIDDEN, ex);
}
var oldPass = json.getString("oldpass");
if (!users.passwordMatches(oldPass, user.hashedPassword())) return badRequest(ex, "wrong password");
var newpass = json.getJSONArray("newpass");
var newPass1 = newpass.getString(0);
if (!newPass1.equals(newpass.getString(1))) {
return badRequest(ex, "password mismatch");
}
users.updatePassword(user, newPass1);
return sendContent(ex, user.map(false));
}
private boolean updateUser(HttpExchange ex, Session session) throws IOException {
var user = session.user();
var json = json(ex);
var uuid = json.getString(UUID);
if (!uuid.equals(user.uuid())) {
return sendEmptyResponse(HTTP_FORBIDDEN, ex);
}
user.username(json.getString(USERNAME));
user.email(json.getString(EMAIL));
users.save(user);
return sendContent(ex, user.map(false));
}
}

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/* © SRSoftware 2024 */
package de.srsoftware.oidc.backend;
import static de.srsoftware.oidc.api.Constants.*;
import static de.srsoftware.oidc.api.Permission.MANAGE_CLIENTS;
import static java.lang.System.Logger.Level.ERROR;
import static java.net.HttpURLConnection.*;
import com.sun.net.httpserver.HttpExchange;
import de.srsoftware.oidc.api.*;
import java.io.IOException;
import java.util.HashSet;
import java.util.Map;
import org.json.JSONObject;
public class ClientController extends Controller {
private static final System.Logger LOG = System.getLogger(ClientController.class.getSimpleName());
private final AuthorizationService authorizations;
private final ClientService clients;
public ClientController(AuthorizationService authorizationService, ClientService clientService, SessionService sessionService) {
super(sessionService);
authorizations = authorizationService;
clients = clientService;
}
private boolean add(HttpExchange ex, Session session) throws IOException {
if (!session.user().hasPermission(MANAGE_CLIENTS)) return badRequest(ex, "NOT ALLOWED");
var json = json(ex);
var redirects = new HashSet<String>();
for (Object o : json.getJSONArray(REDIRECT_URIS)) {
if (o instanceof String s) redirects.add(s);
}
var client = new Client(json.getString(CLIENT_ID), json.getString(NAME), json.getString(SECRET), redirects);
clients.add(client);
return sendContent(ex, client);
}
private boolean authorize(HttpExchange ex, Session session) throws IOException {
var user = session.user();
var json = json(ex);
var clientId = json.getString(CLIENT_ID);
var redirect = json.getString(REDIRECT_URI);
var optClient = clients.getClient(clientId);
if (optClient.isEmpty()) return badRequest(ex, Map.of(CAUSE, "unknown client", CLIENT_ID, clientId));
var client = optClient.get();
if (!client.redirectUris().contains(redirect)) return badRequest(ex, Map.of(CAUSE, "unknown redirect uri", REDIRECT_URI, redirect));
if (!authorizations.isAuthorized(client, session.user())) {
if (json.has(CONFIRMED) && json.getBoolean(CONFIRMED)) {
authorizations.authorize(client, user, null);
} else {
return sendContent(ex, Map.of(CONFIRMED, false, NAME, client.name()));
}
}
var state = json.getString(STATE);
var code = client.generateCode();
return sendContent(ex, Map.of(CONFIRMED, true, CODE, code, REDIRECT_URI, redirect, STATE, state));
}
private boolean deleteClient(HttpExchange ex, Session session) throws IOException {
if (!session.user().hasPermission(MANAGE_CLIENTS)) return badRequest(ex, "NOT ALLOWED");
var json = json(ex);
var id = json.getString(CLIENT_ID);
clients.getClient(id).ifPresent(clients::remove);
return sendEmptyResponse(HTTP_OK, ex);
}
@Override
public boolean doDelete(String path, HttpExchange ex) throws IOException {
var optSession = getSession(ex);
if (optSession.isEmpty()) return sendEmptyResponse(HTTP_UNAUTHORIZED, ex);
// post-login paths
var session = optSession.get();
switch (path) {
case "/":
return deleteClient(ex, session);
}
LOG.log(ERROR, "not implemented");
return sendEmptyResponse(HTTP_NOT_FOUND, ex);
}
@Override
public boolean doPost(String path, HttpExchange ex) throws IOException {
var optSession = getSession(ex);
if (optSession.isEmpty()) return sendEmptyResponse(HTTP_UNAUTHORIZED, ex);
// post-login paths
var session = optSession.get();
switch (path) {
case "/":
return load(ex, session);
case "/add":
return add(ex, session);
case "/authorize":
return authorize(ex, session);
case "/list":
return list(ex, session);
}
return notFound(ex);
}
private boolean list(HttpExchange ex, Session session) throws IOException {
var user = session.user();
if (!user.hasPermission(MANAGE_CLIENTS)) return sendEmptyResponse(HTTP_FORBIDDEN, ex);
var json = new JSONObject();
clients.listClients().forEach(client -> json.put(client.id(), Map.of("name", client.name(), "redirect_uris", client.redirectUris())));
return sendContent(ex, json);
}
private boolean load(HttpExchange ex, Session session) throws IOException {
if (!session.user().hasPermission(MANAGE_CLIENTS)) return sendEmptyResponse(HTTP_FORBIDDEN, ex);
var json = json(ex);
if (json.has(CLIENT_ID)) {
var clientID = json.getString(CLIENT_ID);
var client = clients.getClient(clientID).map(Client::map).map(JSONObject::new);
if (client.isPresent()) return sendContent(ex, client.get());
}
return sendEmptyResponse(HTTP_NOT_FOUND, ex);
}
}

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/* © SRSoftware 2024 */
package de.srsoftware.oidc.backend;
import com.sun.net.httpserver.HttpExchange;
import de.srsoftware.cookies.SessionToken;
import de.srsoftware.oidc.api.PathHandler;
import de.srsoftware.oidc.api.Session;
import de.srsoftware.oidc.api.SessionService;
import java.util.Optional;
public abstract class Controller extends PathHandler {
protected final SessionService sessions;
Controller(SessionService sessionService) {
sessions = sessionService;
}
protected Optional<Session> getSession(HttpExchange ex) {
return SessionToken.from(ex).map(SessionToken::sessionId).flatMap(sessions::retrieve);
}
}

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/* © SRSoftware 2024 */
package de.srsoftware.oidc.backend;
import static de.srsoftware.oidc.api.Constants.ATUH_CODE;
import static de.srsoftware.oidc.api.Constants.GRANT_TYPE;
import static java.lang.System.Logger.Level.ERROR;
import static java.lang.System.Logger.Level.WARNING;
import static java.net.HttpURLConnection.HTTP_BAD_REQUEST;
import static java.net.HttpURLConnection.HTTP_NOT_FOUND;
import com.sun.net.httpserver.HttpExchange;
import de.srsoftware.oidc.api.PathHandler;
import java.io.IOException;
import java.util.Arrays;
import java.util.Map;
import java.util.stream.Collectors;
public class TokenController extends PathHandler {
private Map<String, String> deserialize(String body) {
return Arrays.stream(body.split("&")).map(s -> s.split("=")).collect(Collectors.toMap(arr -> arr[0], arr -> arr[1]));
}
@Override
public boolean doPost(String path, HttpExchange ex) throws IOException {
// pre-login paths
switch (path) {
case "/":
return provideToken(ex);
}
return notFound(ex);
}
private boolean provideToken(HttpExchange ex) throws IOException {
var map = deserialize(body(ex));
LOG.log(WARNING, "post data: {0}", map);
LOG.log(ERROR, "{0}.provideToken(ex) not implemented!", getClass().getSimpleName());
var grantType = map.get(GRANT_TYPE);
if (!ATUH_CODE.equals(grantType)) sendContent(ex, HTTP_BAD_REQUEST, Map.of(ERROR, "unknown grant type", GRANT_TYPE, grantType));
return sendEmptyResponse(HTTP_NOT_FOUND, ex);
}
}

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/* © SRSoftware 2024 */
package de.srsoftware.oidc.backend;
import static de.srsoftware.oidc.api.User.*;
import static java.lang.System.Logger.Level.WARNING;
import static java.net.HttpURLConnection.*;
import com.sun.net.httpserver.HttpExchange;
import de.srsoftware.cookies.SessionToken;
import de.srsoftware.oidc.api.*;
import java.io.IOException;
import java.util.Optional;
public class UserController extends Controller {
private final UserService users;
public UserController(SessionService sessionService, UserService userService) {
super(sessionService);
users = userService;
}
@Override
public boolean doGet(String path, HttpExchange ex) throws IOException {
var optSession = getSession(ex);
if (optSession.isEmpty()) return sendEmptyResponse(HTTP_UNAUTHORIZED, ex);
// post-login paths
var session = optSession.get();
switch (path) {
case "/logout":
return logout(ex, session);
}
LOG.log(WARNING, "not implemented");
return sendEmptyResponse(HTTP_NOT_FOUND, ex);
}
@Override
public boolean doPost(String path, HttpExchange ex) throws IOException {
switch (path) {
case "/login":
return login(ex);
}
var optSession = getSession(ex);
if (optSession.isEmpty()) return sendEmptyResponse(HTTP_UNAUTHORIZED, ex);
// post-login paths
var session = optSession.get();
switch (path) {
case "/":
return sendUserAndCookie(ex, session);
case "/password":
return updatePassword(ex, session);
case "/update":
return updateUser(ex, session);
}
return notFound(ex);
}
private boolean login(HttpExchange ex) throws IOException {
var body = json(ex);
var username = body.has(USERNAME) ? body.getString(USERNAME) : null;
var password = body.has(PASSWORD) ? body.getString(PASSWORD) : null;
Optional<User> user = users.load(username, password);
if (user.isPresent()) return sendUserAndCookie(ex, sessions.createSession(user.get()));
return sendEmptyResponse(HTTP_UNAUTHORIZED, ex);
}
private boolean logout(HttpExchange ex, Session session) throws IOException {
sessions.dropSession(session.id());
new SessionToken("").addTo(ex);
return sendEmptyResponse(HTTP_OK, ex);
}
private boolean sendUserAndCookie(HttpExchange ex, Session session) throws IOException {
new SessionToken(session.id()).addTo(ex);
return sendContent(ex, session.user().map(false));
}
private boolean updatePassword(HttpExchange ex, Session session) throws IOException {
var user = session.user();
var json = json(ex);
var uuid = json.getString(UUID);
if (!uuid.equals(user.uuid())) {
return sendEmptyResponse(HTTP_FORBIDDEN, ex);
}
var oldPass = json.getString("oldpass");
if (!users.passwordMatches(oldPass, user.hashedPassword())) return badRequest(ex, "wrong password");
var newpass = json.getJSONArray("newpass");
var newPass1 = newpass.getString(0);
if (!newPass1.equals(newpass.getString(1))) {
return badRequest(ex, "password mismatch");
}
users.updatePassword(user, newPass1);
return sendContent(ex, user.map(false));
}
private boolean updateUser(HttpExchange ex, Session session) throws IOException {
var user = session.user();
var json = json(ex);
var uuid = json.getString(UUID);
if (!uuid.equals(user.uuid())) {
return sendEmptyResponse(HTTP_FORBIDDEN, ex);
}
user.username(json.getString(USERNAME));
user.email(json.getString(EMAIL));
users.save(user);
return sendContent(ex, user.map(false));
}
}

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/* © SRSoftware 2024 */
package de.srsoftware.oidc.backend;
import static java.lang.System.Logger.Level.WARNING;
import static java.net.HttpURLConnection.HTTP_NOT_FOUND;
import com.sun.net.httpserver.HttpExchange;
import de.srsoftware.oidc.api.PathHandler;
import java.io.IOException;
import java.util.Map;
public class WellKnownController extends PathHandler {
@Override
public boolean doGet(String path, HttpExchange ex) throws IOException {
switch (path) {
case "/openid-configuration":
return openidConfig(ex);
}
LOG.log(WARNING, "not implemented");
return sendEmptyResponse(HTTP_NOT_FOUND, ex);
}
private boolean openidConfig(HttpExchange ex) throws IOException {
var host = hostname(ex);
return sendContent(ex, Map.of("token_endpoint", host + "/api/token", "authorization_endpoint", host + "/web/authorization.html", "userinfo_endpoint", host + "/api/userinfo", "jwks_uri", host + "/api/jwks"));
}
}