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			769 lines
		
	
	
		
			22 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
			
		
		
	
	
			769 lines
		
	
	
		
			22 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
| package headscale
 | |
| 
 | |
| import (
 | |
| 	"encoding/json"
 | |
| 	"errors"
 | |
| 	"fmt"
 | |
| 	"net/http"
 | |
| 	"strconv"
 | |
| 	"strings"
 | |
| 	"time"
 | |
| 
 | |
| 	"github.com/rs/zerolog/log"
 | |
| 	"gorm.io/gorm"
 | |
| 	"tailscale.com/tailcfg"
 | |
| 	"tailscale.com/types/key"
 | |
| )
 | |
| 
 | |
| const (
 | |
| 	// The CapabilityVersion is used by Tailscale clients to indicate
 | |
| 	// their codebase version. Tailscale clients can communicate over TS2021
 | |
| 	// from CapabilityVersion 28, but we only have good support for it
 | |
| 	// since https://github.com/tailscale/tailscale/pull/4323 (Noise in any HTTPS port).
 | |
| 	//
 | |
| 	// Related to this change, there is https://github.com/tailscale/tailscale/pull/5379,
 | |
| 	// where CapabilityVersion 39 is introduced to indicate #4323 was merged.
 | |
| 	//
 | |
| 	// See also https://github.com/tailscale/tailscale/blob/main/tailcfg/tailcfg.go
 | |
| 	NoiseCapabilityVersion = 39
 | |
| )
 | |
| 
 | |
| // KeyHandler provides the Headscale pub key
 | |
| // Listens in /key.
 | |
| func (h *Headscale) KeyHandler(
 | |
| 	writer http.ResponseWriter,
 | |
| 	req *http.Request,
 | |
| ) {
 | |
| 	// New Tailscale clients send a 'v' parameter to indicate the CurrentCapabilityVersion
 | |
| 	clientCapabilityStr := req.URL.Query().Get("v")
 | |
| 	if clientCapabilityStr != "" {
 | |
| 		log.Debug().
 | |
| 			Str("handler", "/key").
 | |
| 			Str("v", clientCapabilityStr).
 | |
| 			Msg("New noise client")
 | |
| 		clientCapabilityVersion, err := strconv.Atoi(clientCapabilityStr)
 | |
| 		if err != nil {
 | |
| 			writer.Header().Set("Content-Type", "text/plain; charset=utf-8")
 | |
| 			writer.WriteHeader(http.StatusBadRequest)
 | |
| 			_, err := writer.Write([]byte("Wrong params"))
 | |
| 			if err != nil {
 | |
| 				log.Error().
 | |
| 					Caller().
 | |
| 					Err(err).
 | |
| 					Msg("Failed to write response")
 | |
| 			}
 | |
| 
 | |
| 			return
 | |
| 		}
 | |
| 
 | |
| 		// TS2021 (Tailscale v2 protocol) requires to have a different key
 | |
| 		if clientCapabilityVersion >= NoiseCapabilityVersion {
 | |
| 			resp := tailcfg.OverTLSPublicKeyResponse{
 | |
| 				LegacyPublicKey: h.privateKey.Public(),
 | |
| 				PublicKey:       h.noisePrivateKey.Public(),
 | |
| 			}
 | |
| 			writer.Header().Set("Content-Type", "application/json")
 | |
| 			writer.WriteHeader(http.StatusOK)
 | |
| 			err = json.NewEncoder(writer).Encode(resp)
 | |
| 			if err != nil {
 | |
| 				log.Error().
 | |
| 					Caller().
 | |
| 					Err(err).
 | |
| 					Msg("Failed to write response")
 | |
| 			}
 | |
| 
 | |
| 			return
 | |
| 		}
 | |
| 	}
 | |
| 	log.Debug().
 | |
| 		Str("handler", "/key").
 | |
| 		Msg("New legacy client")
 | |
| 
 | |
| 	// Old clients don't send a 'v' parameter, so we send the legacy public key
 | |
| 	writer.Header().Set("Content-Type", "text/plain; charset=utf-8")
 | |
| 	writer.WriteHeader(http.StatusOK)
 | |
| 	_, err := writer.Write([]byte(MachinePublicKeyStripPrefix(h.privateKey.Public())))
 | |
| 	if err != nil {
 | |
| 		log.Error().
 | |
| 			Caller().
 | |
| 			Err(err).
 | |
| 			Msg("Failed to write response")
 | |
| 	}
 | |
| }
 | |
| 
 | |
| // handleRegisterCommon is the common logic for registering a client in the legacy and Noise protocols
 | |
| //
 | |
| // When using Noise, the machineKey is Zero.
 | |
| func (h *Headscale) handleRegisterCommon(
 | |
| 	writer http.ResponseWriter,
 | |
| 	req *http.Request,
 | |
| 	registerRequest tailcfg.RegisterRequest,
 | |
| 	machineKey key.MachinePublic,
 | |
| ) {
 | |
| 	now := time.Now().UTC()
 | |
| 	machine, err := h.GetMachineByAnyNodeKey(registerRequest.NodeKey, registerRequest.OldNodeKey)
 | |
| 	if errors.Is(err, gorm.ErrRecordNotFound) {
 | |
| 		// If the machine has AuthKey set, handle registration via PreAuthKeys
 | |
| 		if registerRequest.Auth.AuthKey != "" {
 | |
| 			h.handleAuthKeyCommon(writer, registerRequest, machineKey)
 | |
| 
 | |
| 			return
 | |
| 		}
 | |
| 
 | |
| 		// Check if the node is waiting for interactive login.
 | |
| 		//
 | |
| 		// TODO(juan): We could use this field to improve our protocol implementation,
 | |
| 		// and hold the request until the client closes it, or the interactive
 | |
| 		// login is completed (i.e., the user registers the machine).
 | |
| 		// This is not implemented yet, as it is no strictly required. The only side-effect
 | |
| 		// is that the client will hammer headscale with requests until it gets a
 | |
| 		// successful RegisterResponse.
 | |
| 		if registerRequest.Followup != "" {
 | |
| 			if _, ok := h.registrationCache.Get(NodePublicKeyStripPrefix(registerRequest.NodeKey)); ok {
 | |
| 				log.Debug().
 | |
| 					Caller().
 | |
| 					Str("machine", registerRequest.Hostinfo.Hostname).
 | |
| 					Str("node_key", registerRequest.NodeKey.ShortString()).
 | |
| 					Str("node_key_old", registerRequest.OldNodeKey.ShortString()).
 | |
| 					Str("follow_up", registerRequest.Followup).
 | |
| 					Bool("noise", machineKey.IsZero()).
 | |
| 					Msg("Machine is waiting for interactive login")
 | |
| 
 | |
| 				ticker := time.NewTicker(registrationHoldoff)
 | |
| 				select {
 | |
| 				case <-req.Context().Done():
 | |
| 					return
 | |
| 				case <-ticker.C:
 | |
| 					h.handleNewMachineCommon(writer, registerRequest, machineKey)
 | |
| 
 | |
| 					return
 | |
| 				}
 | |
| 			}
 | |
| 		}
 | |
| 
 | |
| 		log.Info().
 | |
| 			Caller().
 | |
| 			Str("machine", registerRequest.Hostinfo.Hostname).
 | |
| 			Str("node_key", registerRequest.NodeKey.ShortString()).
 | |
| 			Str("node_key_old", registerRequest.OldNodeKey.ShortString()).
 | |
| 			Str("follow_up", registerRequest.Followup).
 | |
| 			Bool("noise", machineKey.IsZero()).
 | |
| 			Msg("New machine not yet in the database")
 | |
| 
 | |
| 		givenName, err := h.GenerateGivenName(
 | |
| 			machineKey.String(),
 | |
| 			registerRequest.Hostinfo.Hostname,
 | |
| 		)
 | |
| 		if err != nil {
 | |
| 			log.Error().
 | |
| 				Caller().
 | |
| 				Str("func", "RegistrationHandler").
 | |
| 				Str("hostinfo.name", registerRequest.Hostinfo.Hostname).
 | |
| 				Err(err)
 | |
| 
 | |
| 			return
 | |
| 		}
 | |
| 
 | |
| 		// The machine did not have a key to authenticate, which means
 | |
| 		// that we rely on a method that calls back some how (OpenID or CLI)
 | |
| 		// We create the machine and then keep it around until a callback
 | |
| 		// happens
 | |
| 		newMachine := Machine{
 | |
| 			MachineKey: MachinePublicKeyStripPrefix(machineKey),
 | |
| 			Hostname:   registerRequest.Hostinfo.Hostname,
 | |
| 			GivenName:  givenName,
 | |
| 			NodeKey:    NodePublicKeyStripPrefix(registerRequest.NodeKey),
 | |
| 			LastSeen:   &now,
 | |
| 			Expiry:     &time.Time{},
 | |
| 		}
 | |
| 
 | |
| 		if !registerRequest.Expiry.IsZero() {
 | |
| 			log.Trace().
 | |
| 				Caller().
 | |
| 				Bool("noise", machineKey.IsZero()).
 | |
| 				Str("machine", registerRequest.Hostinfo.Hostname).
 | |
| 				Time("expiry", registerRequest.Expiry).
 | |
| 				Msg("Non-zero expiry time requested")
 | |
| 			newMachine.Expiry = ®isterRequest.Expiry
 | |
| 		}
 | |
| 
 | |
| 		h.registrationCache.Set(
 | |
| 			newMachine.NodeKey,
 | |
| 			newMachine,
 | |
| 			registerCacheExpiration,
 | |
| 		)
 | |
| 
 | |
| 		h.handleNewMachineCommon(writer, registerRequest, machineKey)
 | |
| 
 | |
| 		return
 | |
| 	}
 | |
| 
 | |
| 	// The machine is already registered, so we need to pass through reauth or key update.
 | |
| 	if machine != nil {
 | |
| 		// If the NodeKey stored in headscale is the same as the key presented in a registration
 | |
| 		// request, then we have a node that is either:
 | |
| 		// - Trying to log out (sending a expiry in the past)
 | |
| 		// - A valid, registered machine, looking for the node map
 | |
| 		// - Expired machine wanting to reauthenticate
 | |
| 		if machine.NodeKey == NodePublicKeyStripPrefix(registerRequest.NodeKey) {
 | |
| 			// The client sends an Expiry in the past if the client is requesting to expire the key (aka logout)
 | |
| 			//   https://github.com/tailscale/tailscale/blob/main/tailcfg/tailcfg.go#L648
 | |
| 			if !registerRequest.Expiry.IsZero() &&
 | |
| 				registerRequest.Expiry.UTC().Before(now) {
 | |
| 				h.handleMachineLogOutCommon(writer, *machine, machineKey)
 | |
| 
 | |
| 				return
 | |
| 			}
 | |
| 
 | |
| 			// If machine is not expired, and is register, we have a already accepted this machine,
 | |
| 			// let it proceed with a valid registration
 | |
| 			if !machine.isExpired() {
 | |
| 				h.handleMachineValidRegistrationCommon(writer, *machine, machineKey)
 | |
| 
 | |
| 				return
 | |
| 			}
 | |
| 		}
 | |
| 
 | |
| 		// The NodeKey we have matches OldNodeKey, which means this is a refresh after a key expiration
 | |
| 		if machine.NodeKey == NodePublicKeyStripPrefix(registerRequest.OldNodeKey) &&
 | |
| 			!machine.isExpired() {
 | |
| 			h.handleMachineRefreshKeyCommon(
 | |
| 				writer,
 | |
| 				registerRequest,
 | |
| 				*machine,
 | |
| 				machineKey,
 | |
| 			)
 | |
| 
 | |
| 			return
 | |
| 		}
 | |
| 
 | |
| 		// The machine has expired
 | |
| 		h.handleMachineExpiredCommon(writer, registerRequest, *machine, machineKey)
 | |
| 
 | |
| 		machine.Expiry = &time.Time{}
 | |
| 		h.registrationCache.Set(
 | |
| 			NodePublicKeyStripPrefix(registerRequest.NodeKey),
 | |
| 			*machine,
 | |
| 			registerCacheExpiration,
 | |
| 		)
 | |
| 
 | |
| 		return
 | |
| 	}
 | |
| }
 | |
| 
 | |
| // handleAuthKeyCommon contains the logic to manage auth key client registration
 | |
| // It is used both by the legacy and the new Noise protocol.
 | |
| // When using Noise, the machineKey is Zero.
 | |
| //
 | |
| // TODO: check if any locks are needed around IP allocation.
 | |
| func (h *Headscale) handleAuthKeyCommon(
 | |
| 	writer http.ResponseWriter,
 | |
| 	registerRequest tailcfg.RegisterRequest,
 | |
| 	machineKey key.MachinePublic,
 | |
| ) {
 | |
| 	log.Debug().
 | |
| 		Str("func", "handleAuthKeyCommon").
 | |
| 		Str("machine", registerRequest.Hostinfo.Hostname).
 | |
| 		Bool("noise", machineKey.IsZero()).
 | |
| 		Msgf("Processing auth key for %s", registerRequest.Hostinfo.Hostname)
 | |
| 	resp := tailcfg.RegisterResponse{}
 | |
| 
 | |
| 	pak, err := h.checkKeyValidity(registerRequest.Auth.AuthKey)
 | |
| 	if err != nil {
 | |
| 		log.Error().
 | |
| 			Caller().
 | |
| 			Str("func", "handleAuthKeyCommon").
 | |
| 			Bool("noise", machineKey.IsZero()).
 | |
| 			Str("machine", registerRequest.Hostinfo.Hostname).
 | |
| 			Err(err).
 | |
| 			Msg("Failed authentication via AuthKey")
 | |
| 		resp.MachineAuthorized = false
 | |
| 
 | |
| 		respBody, err := h.marshalResponse(resp, machineKey)
 | |
| 		if err != nil {
 | |
| 			log.Error().
 | |
| 				Caller().
 | |
| 				Str("func", "handleAuthKeyCommon").
 | |
| 				Bool("noise", machineKey.IsZero()).
 | |
| 				Str("machine", registerRequest.Hostinfo.Hostname).
 | |
| 				Err(err).
 | |
| 				Msg("Cannot encode message")
 | |
| 			http.Error(writer, "Internal server error", http.StatusInternalServerError)
 | |
| 			machineRegistrations.WithLabelValues("new", RegisterMethodAuthKey, "error", pak.Namespace.Name).
 | |
| 				Inc()
 | |
| 
 | |
| 			return
 | |
| 		}
 | |
| 
 | |
| 		writer.Header().Set("Content-Type", "application/json; charset=utf-8")
 | |
| 		writer.WriteHeader(http.StatusUnauthorized)
 | |
| 		_, err = writer.Write(respBody)
 | |
| 		if err != nil {
 | |
| 			log.Error().
 | |
| 				Caller().
 | |
| 				Bool("noise", machineKey.IsZero()).
 | |
| 				Err(err).
 | |
| 				Msg("Failed to write response")
 | |
| 		}
 | |
| 
 | |
| 		log.Error().
 | |
| 			Caller().
 | |
| 			Str("func", "handleAuthKeyCommon").
 | |
| 			Bool("noise", machineKey.IsZero()).
 | |
| 			Str("machine", registerRequest.Hostinfo.Hostname).
 | |
| 			Msg("Failed authentication via AuthKey")
 | |
| 
 | |
| 		if pak != nil {
 | |
| 			machineRegistrations.WithLabelValues("new", RegisterMethodAuthKey, "error", pak.Namespace.Name).
 | |
| 				Inc()
 | |
| 		} else {
 | |
| 			machineRegistrations.WithLabelValues("new", RegisterMethodAuthKey, "error", "unknown").Inc()
 | |
| 		}
 | |
| 
 | |
| 		return
 | |
| 	}
 | |
| 
 | |
| 	log.Debug().
 | |
| 		Str("func", "handleAuthKeyCommon").
 | |
| 		Bool("noise", machineKey.IsZero()).
 | |
| 		Str("machine", registerRequest.Hostinfo.Hostname).
 | |
| 		Msg("Authentication key was valid, proceeding to acquire IP addresses")
 | |
| 
 | |
| 	nodeKey := NodePublicKeyStripPrefix(registerRequest.NodeKey)
 | |
| 
 | |
| 	// retrieve machine information if it exist
 | |
| 	// The error is not important, because if it does not
 | |
| 	// exist, then this is a new machine and we will move
 | |
| 	// on to registration.
 | |
| 	machine, _ := h.GetMachineByAnyNodeKey(registerRequest.NodeKey, registerRequest.OldNodeKey)
 | |
| 	if machine != nil {
 | |
| 		log.Trace().
 | |
| 			Caller().
 | |
| 			Bool("noise", machineKey.IsZero()).
 | |
| 			Str("machine", machine.Hostname).
 | |
| 			Msg("machine was already registered before, refreshing with new auth key")
 | |
| 
 | |
| 		machine.NodeKey = nodeKey
 | |
| 		machine.AuthKeyID = uint(pak.ID)
 | |
| 		err := h.RefreshMachine(machine, registerRequest.Expiry)
 | |
| 		if err != nil {
 | |
| 			log.Error().
 | |
| 				Caller().
 | |
| 				Bool("noise", machineKey.IsZero()).
 | |
| 				Str("machine", machine.Hostname).
 | |
| 				Err(err).
 | |
| 				Msg("Failed to refresh machine")
 | |
| 
 | |
| 			return
 | |
| 		}
 | |
| 
 | |
| 		aclTags := pak.toProto().AclTags
 | |
| 		if len(aclTags) > 0 {
 | |
| 			// This conditional preserves the existing behaviour, although SaaS would reset the tags on auth-key login
 | |
| 			err = h.SetTags(machine, aclTags)
 | |
| 
 | |
| 			if err != nil {
 | |
| 				log.Error().
 | |
| 					Caller().
 | |
| 					Bool("noise", machineKey.IsZero()).
 | |
| 					Str("machine", machine.Hostname).
 | |
| 					Strs("aclTags", aclTags).
 | |
| 					Err(err).
 | |
| 					Msg("Failed to set tags after refreshing machine")
 | |
| 
 | |
| 				return
 | |
| 			}
 | |
| 		}
 | |
| 	} else {
 | |
| 		now := time.Now().UTC()
 | |
| 
 | |
| 		givenName, err := h.GenerateGivenName(MachinePublicKeyStripPrefix(machineKey), registerRequest.Hostinfo.Hostname)
 | |
| 		if err != nil {
 | |
| 			log.Error().
 | |
| 				Caller().
 | |
| 				Bool("noise", machineKey.IsZero()).
 | |
| 				Str("func", "RegistrationHandler").
 | |
| 				Str("hostinfo.name", registerRequest.Hostinfo.Hostname).
 | |
| 				Err(err)
 | |
| 
 | |
| 			return
 | |
| 		}
 | |
| 
 | |
| 		machineToRegister := Machine{
 | |
| 			Hostname:       registerRequest.Hostinfo.Hostname,
 | |
| 			GivenName:      givenName,
 | |
| 			NamespaceID:    pak.Namespace.ID,
 | |
| 			MachineKey:     MachinePublicKeyStripPrefix(machineKey),
 | |
| 			RegisterMethod: RegisterMethodAuthKey,
 | |
| 			Expiry:         ®isterRequest.Expiry,
 | |
| 			NodeKey:        nodeKey,
 | |
| 			LastSeen:       &now,
 | |
| 			AuthKeyID:      uint(pak.ID),
 | |
| 			ForcedTags:     pak.toProto().AclTags,
 | |
| 		}
 | |
| 
 | |
| 		machine, err = h.RegisterMachine(
 | |
| 			machineToRegister,
 | |
| 		)
 | |
| 		if err != nil {
 | |
| 			log.Error().
 | |
| 				Caller().
 | |
| 				Bool("noise", machineKey.IsZero()).
 | |
| 				Err(err).
 | |
| 				Msg("could not register machine")
 | |
| 			machineRegistrations.WithLabelValues("new", RegisterMethodAuthKey, "error", pak.Namespace.Name).
 | |
| 				Inc()
 | |
| 			http.Error(writer, "Internal server error", http.StatusInternalServerError)
 | |
| 
 | |
| 			return
 | |
| 		}
 | |
| 	}
 | |
| 
 | |
| 	err = h.UsePreAuthKey(pak)
 | |
| 	if err != nil {
 | |
| 		log.Error().
 | |
| 			Caller().
 | |
| 			Bool("noise", machineKey.IsZero()).
 | |
| 			Err(err).
 | |
| 			Msg("Failed to use pre-auth key")
 | |
| 		machineRegistrations.WithLabelValues("new", RegisterMethodAuthKey, "error", pak.Namespace.Name).
 | |
| 			Inc()
 | |
| 		http.Error(writer, "Internal server error", http.StatusInternalServerError)
 | |
| 
 | |
| 		return
 | |
| 	}
 | |
| 
 | |
| 	resp.MachineAuthorized = true
 | |
| 	resp.User = *pak.Namespace.toUser()
 | |
| 	// Provide LoginName when registering with pre-auth key
 | |
| 	// Otherwise it will need to exec `tailscale up` twice to fetch the *LoginName*
 | |
| 	resp.Login = *pak.Namespace.toLogin()
 | |
| 
 | |
| 	respBody, err := h.marshalResponse(resp, machineKey)
 | |
| 	if err != nil {
 | |
| 		log.Error().
 | |
| 			Caller().
 | |
| 			Bool("noise", machineKey.IsZero()).
 | |
| 			Str("func", "handleAuthKeyCommon").
 | |
| 			Str("machine", registerRequest.Hostinfo.Hostname).
 | |
| 			Err(err).
 | |
| 			Msg("Cannot encode message")
 | |
| 		machineRegistrations.WithLabelValues("new", RegisterMethodAuthKey, "error", pak.Namespace.Name).
 | |
| 			Inc()
 | |
| 		http.Error(writer, "Internal server error", http.StatusInternalServerError)
 | |
| 
 | |
| 		return
 | |
| 	}
 | |
| 	machineRegistrations.WithLabelValues("new", RegisterMethodAuthKey, "success", pak.Namespace.Name).
 | |
| 		Inc()
 | |
| 	writer.Header().Set("Content-Type", "application/json; charset=utf-8")
 | |
| 	writer.WriteHeader(http.StatusOK)
 | |
| 	_, err = writer.Write(respBody)
 | |
| 	if err != nil {
 | |
| 		log.Error().
 | |
| 			Caller().
 | |
| 			Bool("noise", machineKey.IsZero()).
 | |
| 			Err(err).
 | |
| 			Msg("Failed to write response")
 | |
| 	}
 | |
| 
 | |
| 	log.Info().
 | |
| 		Str("func", "handleAuthKeyCommon").
 | |
| 		Bool("noise", machineKey.IsZero()).
 | |
| 		Str("machine", registerRequest.Hostinfo.Hostname).
 | |
| 		Str("ips", strings.Join(machine.IPAddresses.ToStringSlice(), ", ")).
 | |
| 		Msg("Successfully authenticated via AuthKey")
 | |
| }
 | |
| 
 | |
| // handleNewMachineCommon exposes for both legacy and Noise the functionality to get a URL
 | |
| // for authorizing the machine. This url is then showed to the user by the local Tailscale client.
 | |
| func (h *Headscale) handleNewMachineCommon(
 | |
| 	writer http.ResponseWriter,
 | |
| 	registerRequest tailcfg.RegisterRequest,
 | |
| 	machineKey key.MachinePublic,
 | |
| ) {
 | |
| 	resp := tailcfg.RegisterResponse{}
 | |
| 
 | |
| 	// The machine registration is new, redirect the client to the registration URL
 | |
| 	log.Debug().
 | |
| 		Caller().
 | |
| 		Bool("noise", machineKey.IsZero()).
 | |
| 		Str("machine", registerRequest.Hostinfo.Hostname).
 | |
| 		Msg("The node seems to be new, sending auth url")
 | |
| 	if h.oauth2Config != nil {
 | |
| 		resp.AuthURL = fmt.Sprintf(
 | |
| 			"%s/oidc/register/%s",
 | |
| 			strings.TrimSuffix(h.cfg.ServerURL, "/"),
 | |
| 			registerRequest.NodeKey,
 | |
| 		)
 | |
| 	} else {
 | |
| 		resp.AuthURL = fmt.Sprintf("%s/register/%s",
 | |
| 			strings.TrimSuffix(h.cfg.ServerURL, "/"),
 | |
| 			registerRequest.NodeKey)
 | |
| 	}
 | |
| 
 | |
| 	respBody, err := h.marshalResponse(resp, machineKey)
 | |
| 	if err != nil {
 | |
| 		log.Error().
 | |
| 			Caller().
 | |
| 			Bool("noise", machineKey.IsZero()).
 | |
| 			Err(err).
 | |
| 			Msg("Cannot encode message")
 | |
| 		http.Error(writer, "Internal server error", http.StatusInternalServerError)
 | |
| 
 | |
| 		return
 | |
| 	}
 | |
| 
 | |
| 	writer.Header().Set("Content-Type", "application/json; charset=utf-8")
 | |
| 	writer.WriteHeader(http.StatusOK)
 | |
| 	_, err = writer.Write(respBody)
 | |
| 	if err != nil {
 | |
| 		log.Error().
 | |
| 			Bool("noise", machineKey.IsZero()).
 | |
| 			Caller().
 | |
| 			Err(err).
 | |
| 			Msg("Failed to write response")
 | |
| 	}
 | |
| 
 | |
| 	log.Info().
 | |
| 		Caller().
 | |
| 		Bool("noise", machineKey.IsZero()).
 | |
| 		Str("machine", registerRequest.Hostinfo.Hostname).
 | |
| 		Msg("Successfully sent auth url")
 | |
| }
 | |
| 
 | |
| func (h *Headscale) handleMachineLogOutCommon(
 | |
| 	writer http.ResponseWriter,
 | |
| 	machine Machine,
 | |
| 	machineKey key.MachinePublic,
 | |
| ) {
 | |
| 	resp := tailcfg.RegisterResponse{}
 | |
| 
 | |
| 	log.Info().
 | |
| 		Bool("noise", machineKey.IsZero()).
 | |
| 		Str("machine", machine.Hostname).
 | |
| 		Msg("Client requested logout")
 | |
| 
 | |
| 	err := h.ExpireMachine(&machine)
 | |
| 	if err != nil {
 | |
| 		log.Error().
 | |
| 			Caller().
 | |
| 			Bool("noise", machineKey.IsZero()).
 | |
| 			Str("func", "handleMachineLogOutCommon").
 | |
| 			Err(err).
 | |
| 			Msg("Failed to expire machine")
 | |
| 		http.Error(writer, "Internal server error", http.StatusInternalServerError)
 | |
| 
 | |
| 		return
 | |
| 	}
 | |
| 
 | |
| 	resp.AuthURL = ""
 | |
| 	resp.MachineAuthorized = false
 | |
| 	resp.User = *machine.Namespace.toUser()
 | |
| 	respBody, err := h.marshalResponse(resp, machineKey)
 | |
| 	if err != nil {
 | |
| 		log.Error().
 | |
| 			Caller().
 | |
| 			Bool("noise", machineKey.IsZero()).
 | |
| 			Err(err).
 | |
| 			Msg("Cannot encode message")
 | |
| 		http.Error(writer, "Internal server error", http.StatusInternalServerError)
 | |
| 
 | |
| 		return
 | |
| 	}
 | |
| 
 | |
| 	writer.Header().Set("Content-Type", "application/json; charset=utf-8")
 | |
| 	writer.WriteHeader(http.StatusOK)
 | |
| 	_, err = writer.Write(respBody)
 | |
| 	if err != nil {
 | |
| 		log.Error().
 | |
| 			Bool("noise", machineKey.IsZero()).
 | |
| 			Caller().
 | |
| 			Err(err).
 | |
| 			Msg("Failed to write response")
 | |
| 	}
 | |
| 
 | |
| 	log.Info().
 | |
| 		Caller().
 | |
| 		Bool("noise", machineKey.IsZero()).
 | |
| 		Str("machine", machine.Hostname).
 | |
| 		Msg("Successfully logged out")
 | |
| }
 | |
| 
 | |
| func (h *Headscale) handleMachineValidRegistrationCommon(
 | |
| 	writer http.ResponseWriter,
 | |
| 	machine Machine,
 | |
| 	machineKey key.MachinePublic,
 | |
| ) {
 | |
| 	resp := tailcfg.RegisterResponse{}
 | |
| 
 | |
| 	// The machine registration is valid, respond with redirect to /map
 | |
| 	log.Debug().
 | |
| 		Caller().
 | |
| 		Bool("noise", machineKey.IsZero()).
 | |
| 		Str("machine", machine.Hostname).
 | |
| 		Msg("Client is registered and we have the current NodeKey. All clear to /map")
 | |
| 
 | |
| 	resp.AuthURL = ""
 | |
| 	resp.MachineAuthorized = true
 | |
| 	resp.User = *machine.Namespace.toUser()
 | |
| 	resp.Login = *machine.Namespace.toLogin()
 | |
| 
 | |
| 	respBody, err := h.marshalResponse(resp, machineKey)
 | |
| 	if err != nil {
 | |
| 		log.Error().
 | |
| 			Caller().
 | |
| 			Bool("noise", machineKey.IsZero()).
 | |
| 			Err(err).
 | |
| 			Msg("Cannot encode message")
 | |
| 		machineRegistrations.WithLabelValues("update", "web", "error", machine.Namespace.Name).
 | |
| 			Inc()
 | |
| 		http.Error(writer, "Internal server error", http.StatusInternalServerError)
 | |
| 
 | |
| 		return
 | |
| 	}
 | |
| 	machineRegistrations.WithLabelValues("update", "web", "success", machine.Namespace.Name).
 | |
| 		Inc()
 | |
| 
 | |
| 	writer.Header().Set("Content-Type", "application/json; charset=utf-8")
 | |
| 	writer.WriteHeader(http.StatusOK)
 | |
| 	_, err = writer.Write(respBody)
 | |
| 	if err != nil {
 | |
| 		log.Error().
 | |
| 			Caller().
 | |
| 			Bool("noise", machineKey.IsZero()).
 | |
| 			Err(err).
 | |
| 			Msg("Failed to write response")
 | |
| 	}
 | |
| 
 | |
| 	log.Info().
 | |
| 		Caller().
 | |
| 		Bool("noise", machineKey.IsZero()).
 | |
| 		Str("machine", machine.Hostname).
 | |
| 		Msg("Machine successfully authorized")
 | |
| }
 | |
| 
 | |
| func (h *Headscale) handleMachineRefreshKeyCommon(
 | |
| 	writer http.ResponseWriter,
 | |
| 	registerRequest tailcfg.RegisterRequest,
 | |
| 	machine Machine,
 | |
| 	machineKey key.MachinePublic,
 | |
| ) {
 | |
| 	resp := tailcfg.RegisterResponse{}
 | |
| 
 | |
| 	log.Debug().
 | |
| 		Caller().
 | |
| 		Bool("noise", machineKey.IsZero()).
 | |
| 		Str("machine", machine.Hostname).
 | |
| 		Msg("We have the OldNodeKey in the database. This is a key refresh")
 | |
| 	machine.NodeKey = NodePublicKeyStripPrefix(registerRequest.NodeKey)
 | |
| 
 | |
| 	if err := h.db.Save(&machine).Error; err != nil {
 | |
| 		log.Error().
 | |
| 			Caller().
 | |
| 			Err(err).
 | |
| 			Msg("Failed to update machine key in the database")
 | |
| 		http.Error(writer, "Internal server error", http.StatusInternalServerError)
 | |
| 
 | |
| 		return
 | |
| 	}
 | |
| 
 | |
| 	resp.AuthURL = ""
 | |
| 	resp.User = *machine.Namespace.toUser()
 | |
| 	respBody, err := h.marshalResponse(resp, machineKey)
 | |
| 	if err != nil {
 | |
| 		log.Error().
 | |
| 			Caller().
 | |
| 			Bool("noise", machineKey.IsZero()).
 | |
| 			Err(err).
 | |
| 			Msg("Cannot encode message")
 | |
| 		http.Error(writer, "Internal server error", http.StatusInternalServerError)
 | |
| 
 | |
| 		return
 | |
| 	}
 | |
| 
 | |
| 	writer.Header().Set("Content-Type", "application/json; charset=utf-8")
 | |
| 	writer.WriteHeader(http.StatusOK)
 | |
| 	_, err = writer.Write(respBody)
 | |
| 	if err != nil {
 | |
| 		log.Error().
 | |
| 			Caller().
 | |
| 			Bool("noise", machineKey.IsZero()).
 | |
| 			Err(err).
 | |
| 			Msg("Failed to write response")
 | |
| 	}
 | |
| 
 | |
| 	log.Info().
 | |
| 		Caller().
 | |
| 		Bool("noise", machineKey.IsZero()).
 | |
| 		Str("node_key", registerRequest.NodeKey.ShortString()).
 | |
| 		Str("old_node_key", registerRequest.OldNodeKey.ShortString()).
 | |
| 		Str("machine", machine.Hostname).
 | |
| 		Msg("Machine successfully refreshed")
 | |
| }
 | |
| 
 | |
| func (h *Headscale) handleMachineExpiredCommon(
 | |
| 	writer http.ResponseWriter,
 | |
| 	registerRequest tailcfg.RegisterRequest,
 | |
| 	machine Machine,
 | |
| 	machineKey key.MachinePublic,
 | |
| ) {
 | |
| 	resp := tailcfg.RegisterResponse{}
 | |
| 
 | |
| 	// The client has registered before, but has expired
 | |
| 	log.Debug().
 | |
| 		Caller().
 | |
| 		Bool("noise", machineKey.IsZero()).
 | |
| 		Str("machine", machine.Hostname).
 | |
| 		Msg("Machine registration has expired. Sending a authurl to register")
 | |
| 
 | |
| 	if registerRequest.Auth.AuthKey != "" {
 | |
| 		h.handleAuthKeyCommon(writer, registerRequest, machineKey)
 | |
| 
 | |
| 		return
 | |
| 	}
 | |
| 
 | |
| 	if h.oauth2Config != nil {
 | |
| 		resp.AuthURL = fmt.Sprintf("%s/oidc/register/%s",
 | |
| 			strings.TrimSuffix(h.cfg.ServerURL, "/"),
 | |
| 			NodePublicKeyStripPrefix(registerRequest.NodeKey))
 | |
| 	} else {
 | |
| 		resp.AuthURL = fmt.Sprintf("%s/register/%s",
 | |
| 			strings.TrimSuffix(h.cfg.ServerURL, "/"),
 | |
| 			registerRequest.NodeKey)
 | |
| 	}
 | |
| 
 | |
| 	respBody, err := h.marshalResponse(resp, machineKey)
 | |
| 	if err != nil {
 | |
| 		log.Error().
 | |
| 			Caller().
 | |
| 			Bool("noise", machineKey.IsZero()).
 | |
| 			Err(err).
 | |
| 			Msg("Cannot encode message")
 | |
| 		machineRegistrations.WithLabelValues("reauth", "web", "error", machine.Namespace.Name).
 | |
| 			Inc()
 | |
| 		http.Error(writer, "Internal server error", http.StatusInternalServerError)
 | |
| 
 | |
| 		return
 | |
| 	}
 | |
| 	machineRegistrations.WithLabelValues("reauth", "web", "success", machine.Namespace.Name).
 | |
| 		Inc()
 | |
| 
 | |
| 	writer.Header().Set("Content-Type", "application/json; charset=utf-8")
 | |
| 	writer.WriteHeader(http.StatusOK)
 | |
| 	_, err = writer.Write(respBody)
 | |
| 	if err != nil {
 | |
| 		log.Error().
 | |
| 			Caller().
 | |
| 			Bool("noise", machineKey.IsZero()).
 | |
| 			Err(err).
 | |
| 			Msg("Failed to write response")
 | |
| 	}
 | |
| 
 | |
| 	log.Info().
 | |
| 		Caller().
 | |
| 		Bool("noise", machineKey.IsZero()).
 | |
| 		Str("machine", machine.Hostname).
 | |
| 		Msg("Auth URL for reauthenticate successfully sent")
 | |
| }
 |