目前,我有一个包含以下组件的有效解决方案:
这使我可以使用密钥斗篷进行身份验证。
因为我的Web服务器还公开了一个Websocket主机,所以我也想对这些Websocket进行身份验证。有没有人有一个示例(nginx文件和lua文件都可用)来使用openresty验证websocket连接?我看过https://github.com/openresty/lua-resty-websocket,但似乎找不到在身份验证部分中插入的位置。
一个示例客户端应用程序来测试这一点也很好!
答案 0 :(得分:1)
我自己弄清楚了。在此处发布我的解决方案以帮助其他人实现同样的目标。
我有以下代码片段:
仅用于websocket,应放置在服务器部分内:
set $resty_user 'not_authenticated_resty_user';
location /ws {
access_by_lua_file /usr/local/openresty/nginx/conf/lua_access.lua;
proxy_pass http://<backend-websocket-host>/ws;
proxy_http_version 1.1;
proxy_set_header Host $http_host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection "upgrade";
proxy_set_header X-Forwared-User $resty_user;
proxy_read_timeout 1d;
proxy_send_timeout 1d;
}
local opts = {
redirect_uri = "/*",
discovery = "http://<keycloak-url>/auth/realms/realm/.well-known/openid-configuration",
client_id = "<client-id>",
client_secret = "<client-secret>",
redirect_uri_scheme = "https",
logout_path = "/logout",
redirect_after_logout_uri = "http://<keycloak-url>/auth/realms/realm/protocol/openid-connect/logout?redirect_uri=http%3A%2F%2google.com",
redirect_after_logout_with_id_token_hint = false,
session_contents = {id_token=true},
ssl_verify=no
}
-- call introspect for OAuth 2.0 Bearer Access Token validation
local res, err = require("resty.openidc").bearer_jwt_verify(opts)
if err or not res then
print("Token authentication not succeeded")
if err then
print("jwt_verify error message:")
print(err)
end
if res then
print("jwt_verify response:")
tprint(res)
end
res, err = require("resty.openidc").authenticate(opts)
if err then
ngx.status = 403
ngx.say(err)
ngx.exit(ngx.HTTP_FORBIDDEN)
end
end
if res.id_token and res.id_token.preferred_username then
ngx.var.resty_user = res.id_token.preferred_username
else
ngx.var.resty_user = res.preferred_username
end
仅当Websocket连接具有从密钥斗篷服务中检索到的有效令牌时,才允许它们。
最后,resty用户被填充以将经过身份验证的用户传递给后端应用程序。
package test;
import org.keycloak.admin.client.Keycloak;
import org.keycloak.representations.AccessTokenResponse;
public class KeycloakConnection {
private Keycloak _keycloak;
public KeycloakConnection(final String host, String username, String password, String clientSecret, String realm, String clientId) {
_keycloak = Keycloak.getInstance(
"http://" + host + "/auth",
realm,
username,
password,
clientId,
clientSecret);
}
public String GetAccessToken()
{
final AccessTokenResponse accessToken = _keycloak.tokenManager().getAccessToken();
return accessToken.getToken();
}
}
此代码段仅包含我调用的用于设置websocket连接的功能。您仍然必须实例化_keycloakConnection对象,在我的情况下,我有一个通用的_session字段,以便每次需要时都可以重用该会话。
private Session GetWebsocketSession(String host)
{
URI uri = URI.create("wss://" + host);
ClientUpgradeRequest request = new ClientUpgradeRequest();
request.setHeader("Authorization", "Bearer " + _keycloakConnection.GetAccessToken());
_client = new WebSocketClient();
try {
_client.start();
// The socket that receives events
WebsocketEventHandler socketEventHandler = new WebsocketEventHandler(this::NewLiveMessageReceivedInternal);
// Attempt Connect
Future<Session> fut = _client.connect(socketEventHandler, uri, request);
// Wait for Connect
_session = fut.get();
return _session;
} catch (Throwable t) {
_logger.error("Error during websocket session creation", t);
}
return null;
}
在此类中注入了一个使用者,以在另一个类别中使用消息
package test;
import org.apache.log4j.Logger;
import org.eclipse.jetty.websocket.api.Session;
import org.eclipse.jetty.websocket.api.WebSocketAdapter;
import java.util.function.Consumer;
public class WebsocketEventHandler extends WebSocketAdapter
{
private final Logger _logger;
private Consumer<String> _onMessage;
public WebsocketEventHandler(Consumer<String> onMessage) {
_onMessage = onMessage;
_logger = Logger.getLogger(WebsocketEventHandler.class);
}
@Override
public void onWebSocketConnect(Session sess)
{
super.onWebSocketConnect(sess);
_logger.info("Socket Connected: " + sess);
}
@Override
public void onWebSocketText(String message)
{
super.onWebSocketText(message);
_logger.info("Received TEXT message: " + message);
_onMessage.accept(message);
}
@Override
public void onWebSocketClose(int statusCode, String reason)
{
super.onWebSocketClose(statusCode,reason);
_logger.info("Socket Closed: [" + statusCode + "] " + reason);
}
@Override
public void onWebSocketError(Throwable cause)
{
super.onWebSocketError(cause);
_logger.error("Websocket error", cause);
}
}
创建_session时,您可以使用以下行发送数据:
_session.getRemote().sendString("Hello world");
这些摘录只是我整个解决方案的一小部分。我可能错过了一些东西。如果有人有问题或无法解决您的问题,请与我们联系,我们将提供更多信息。