mirror of https://github.com/portainer/portainer
54 lines
2.0 KiB
Go
54 lines
2.0 KiB
Go
package endpointproxy
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import (
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"strconv"
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"github.com/portainer/portainer"
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httperror "github.com/portainer/portainer/http/error"
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"github.com/portainer/portainer/http/request"
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"github.com/portainer/portainer/http/security"
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"net/http"
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)
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func (handler *Handler) proxyRequestsToDockerAPI(w http.ResponseWriter, r *http.Request) *httperror.HandlerError {
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endpointID, err := request.RetrieveNumericRouteVariableValue(r, "id")
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if err != nil {
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return &httperror.HandlerError{http.StatusBadRequest, "Invalid endpoint identifier route variable", err}
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}
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endpoint, err := handler.EndpointService.Endpoint(portainer.EndpointID(endpointID))
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if err == portainer.ErrEndpointNotFound {
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return &httperror.HandlerError{http.StatusNotFound, "Unable to find an endpoint with the specified identifier inside the database", err}
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} else if err != nil {
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return &httperror.HandlerError{http.StatusInternalServerError, "Unable to find an endpoint with the specified identifier inside the database", err}
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}
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tokenData, err := security.RetrieveTokenData(r)
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if err != nil {
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return &httperror.HandlerError{http.StatusInternalServerError, "Unable to retrieve user authentication token", err}
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}
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if tokenData.Role != portainer.AdministratorRole {
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err = handler.checkEndpointAccess(endpoint, tokenData.ID)
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if err != nil && err == portainer.ErrEndpointAccessDenied {
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return &httperror.HandlerError{http.StatusForbidden, "Permission denied to access endpoint", portainer.ErrEndpointAccessDenied}
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} else if err != nil {
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return &httperror.HandlerError{http.StatusInternalServerError, "Unable to verify permission to access endpoint", err}
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}
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}
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var proxy http.Handler
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proxy = handler.ProxyManager.GetProxy(string(endpointID))
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if proxy == nil {
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proxy, err = handler.ProxyManager.CreateAndRegisterProxy(endpoint)
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if err != nil {
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return &httperror.HandlerError{http.StatusInternalServerError, "Unable to create proxy", err}
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}
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}
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id := strconv.Itoa(endpointID)
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http.StripPrefix("/"+id+"/docker", proxy).ServeHTTP(w, r)
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return nil
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}
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