portainer/portainer

package endpoints

import (
    "encoding/base64"
    "errors"
    "fmt"
    "net/http"
    "regexp"
    "strings"

    portainer "github.com/portainer/portainer/api"
    httperror "github.com/portainer/portainer/pkg/libhttp/error"
    "github.com/portainer/portainer/pkg/libhttp/request"
    "github.com/portainer/portainer/pkg/libhttp/response"
)

// @id EndpointAssociationDelete
// @summary De-association an edge environment(endpoint)
// @description De-association an edge environment(endpoint).
// @description **Access policy**: administrator
// @security ApiKeyAuth
// @security jwt
// @tags endpoints
// @produce json
// @param id path int true "Environment(Endpoint) identifier"
// @success 204 "Success"
// @failure 400 "Invalid request"
// @failure 404 "Environment(Endpoint) not found"
// @failure 500 "Server error"
// @router /endpoints/{id}/association [put]
func (handler *Handler) endpointAssociationDelete(w http.ResponseWriter, r *http.Request) *httperror.HandlerError {
    endpointID, err := request.RetrieveNumericRouteVariableValue(r, "id")
    if err != nil {
        return httperror.BadRequest("Invalid environment identifier route variable", err)
    }

    endpoint, err := handler.DataStore.Endpoint().Endpoint(portainer.EndpointID(endpointID))
    if handler.DataStore.IsErrObjectNotFound(err) {
        return httperror.NotFound("Unable to find an environment with the specified identifier inside the database", err)
    } else if err != nil {
        return httperror.InternalServerError("Unable to find an environment with the specified identifier inside the database", err)
    }

    if endpoint.Type != portainer.EdgeAgentOnKubernetesEnvironment && endpoint.Type != portainer.EdgeAgentOnDockerEnvironment {
        return httperror.BadRequest("Invalid environment type", errors.New("Invalid environment type"))
    }

    endpoint.EdgeID = ""
    endpoint.Snapshots = []portainer.DockerSnapshot{}
    endpoint.Kubernetes.Snapshots = []portainer.KubernetesSnapshot{}

    endpoint.EdgeKey, err = handler.updateEdgeKey(endpoint.EdgeKey)
    if err != nil {
        return httperror.InternalServerError("Invalid EdgeKey", err)
    }

    err = handler.DataStore.Endpoint().UpdateEndpoint(portainer.EndpointID(endpointID), endpoint)
    if err != nil {
        return httperror.InternalServerError("Failed persisting environment in database", err)
    }

    handler.ReverseTunnelService.SetTunnelStatusToIdle(endpoint.ID)

    return response.Empty(w)
}

func (handler *Handler) updateEdgeKey(edgeKey string) (string, error) {
    oldEdgeKeyByte, err := base64.RawStdEncoding.DecodeString(edgeKey)
    if err != nil {
        return "", err
    }

    oldEdgeKeyStr := string(oldEdgeKeyByte)

    httpPort := getPort(handler.BindAddress)
    httpsPort := getPort(handler.BindAddressHTTPS)

    // replace "http://" with "https://" and replace ":9000" with ":9443", in the case of default values
    // oldEdgeKeyStr example: http://10.116.1.178:9000|10.116.1.178:8000|46:99:4a:8d:a6:de:6a:bd:d8:e2:1c:99:81:60:54:55|52
    r := regexp.MustCompile(fmt.Sprintf("^(http://)([^|]+)(:%s)(|.*)", httpPort))
    newEdgeKeyStr := r.ReplaceAllString(oldEdgeKeyStr, fmt.Sprintf("https://$2:%s$4", httpsPort))

    return base64.RawStdEncoding.EncodeToString([]byte(newEdgeKeyStr)), nil
}

func getPort(url string) string {
    items := strings.Split(url, ":")
    return items[len(items)-1]
}