andres-portainer
108 lines
2.9 KiB
Go
108 lines
2.9 KiB
Go
package websocket
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import (
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"net"
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"net/http"
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"net/url"
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portainer "github.com/portainer/portainer/api"
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"github.com/portainer/portainer/api/crypto"
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"github.com/portainer/portainer/api/http/security"
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"github.com/portainer/portainer/api/logoutcontext"
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"github.com/gorilla/websocket"
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"github.com/koding/websocketproxy"
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"github.com/rs/zerolog/log"
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)
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func (handler *Handler) proxyEdgeAgentWebsocketRequest(w http.ResponseWriter, r *http.Request, params *webSocketRequestParams) error {
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tunnelAddr, err := handler.ReverseTunnelService.TunnelAddr(params.endpoint)
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if err != nil {
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return err
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}
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agentURL, err := url.Parse("http://" + tunnelAddr)
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if err != nil {
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return err
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}
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return handler.doProxyWebsocketRequest(w, r, params, agentURL, true)
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}
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func (handler *Handler) proxyAgentWebsocketRequest(w http.ResponseWriter, r *http.Request, params *webSocketRequestParams) error {
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endpointURL := params.endpoint.URL
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if params.endpoint.Type == portainer.AgentOnKubernetesEnvironment {
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endpointURL = "http://" + params.endpoint.URL
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}
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agentURL, err := url.Parse(endpointURL)
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if err != nil {
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return err
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}
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return handler.doProxyWebsocketRequest(w, r, params, agentURL, false)
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}
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func (handler *Handler) doProxyWebsocketRequest(
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w http.ResponseWriter,
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r *http.Request,
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params *webSocketRequestParams,
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agentURL *url.URL,
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isEdge bool,
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) error {
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tokenData, err := security.RetrieveTokenData(r)
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if err != nil {
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log.
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Warn().
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Err(err).
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Msg("unable to retrieve user details from authentication token")
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return err
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}
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enableTLS := !isEdge && (params.endpoint.TLSConfig.TLS || params.endpoint.TLSConfig.TLSSkipVerify)
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agentURL.Scheme = "ws"
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if enableTLS {
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agentURL.Scheme = "wss"
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}
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proxy := websocketproxy.NewProxy(agentURL)
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proxyDialer := *websocket.DefaultDialer
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proxy.Dialer = &proxyDialer
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if enableTLS {
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proxyDialer.TLSClientConfig = crypto.CreateTLSConfiguration(params.endpoint.TLSConfig.TLSSkipVerify)
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}
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signature, err := handler.SignatureService.CreateSignature(portainer.PortainerAgentSignatureMessage)
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if err != nil {
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return err
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}
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proxy.Director = func(incoming *http.Request, out http.Header) {
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out.Set(portainer.PortainerAgentPublicKeyHeader, handler.SignatureService.EncodedPublicKey())
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out.Set(portainer.PortainerAgentSignatureHeader, signature)
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out.Set(portainer.PortainerAgentTargetHeader, params.nodeName)
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out.Set(portainer.PortainerAgentKubernetesSATokenHeader, params.token)
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}
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if isEdge {
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handler.ReverseTunnelService.UpdateLastActivity(params.endpoint.ID)
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handler.ReverseTunnelService.KeepTunnelAlive(params.endpoint.ID, r.Context(), portainer.WebSocketKeepAlive)
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}
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proxy.Dialer.NetDial = func(network, addr string) (net.Conn, error) {
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netDialer := &net.Dialer{}
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logoutCtx := logoutcontext.GetContext(tokenData.Token)
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conn, err := netDialer.DialContext(logoutCtx, network, addr)
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return conn, err
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}
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proxy.ServeHTTP(w, r)
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return nil
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}
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