mirror of https://github.com/portainer/portainer
198 lines
7.1 KiB
Go
198 lines
7.1 KiB
Go
package docker
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import (
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"context"
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"errors"
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"net/http"
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"path"
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"github.com/docker/docker/client"
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portainer "github.com/portainer/portainer/api"
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"github.com/portainer/portainer/api/http/proxy/factory/responseutils"
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"github.com/portainer/portainer/api/http/security"
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"github.com/portainer/portainer/api/internal/authorization"
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)
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const (
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volumeObjectIdentifier = "ID"
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)
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func getInheritedResourceControlFromVolumeLabels(dockerClient *client.Client, endpointID portainer.EndpointID, volumeID string, resourceControls []portainer.ResourceControl) (*portainer.ResourceControl, error) {
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volume, err := dockerClient.VolumeInspect(context.Background(), volumeID)
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if err != nil {
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return nil, err
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}
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stackResourceID := getStackResourceIDFromLabels(volume.Labels, endpointID)
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if stackResourceID != "" {
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return authorization.GetResourceControlByResourceIDAndType(stackResourceID, portainer.StackResourceControl, resourceControls), nil
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}
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return nil, nil
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}
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// volumeListOperation extracts the response as a JSON object, loop through the volume array
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// decorate and/or filter the volumes based on resource controls before rewriting the response.
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func (transport *Transport) volumeListOperation(response *http.Response, executor *operationExecutor) error {
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// VolumeList response is a JSON object
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// https://docs.docker.com/engine/api/v1.28/#operation/VolumeList
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responseObject, err := responseutils.GetResponseAsJSONObject(response)
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if err != nil {
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return err
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}
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// The "Volumes" field contains the list of volumes as an array of JSON objects
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if responseObject["Volumes"] != nil {
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volumeData := responseObject["Volumes"].([]interface{})
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for _, volumeObject := range volumeData {
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volume := volumeObject.(map[string]interface{})
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if volume["Name"] == nil || volume["CreatedAt"] == nil {
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return errors.New("missing identifier in Docker resource list response")
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}
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volume[volumeObjectIdentifier] = volume["Name"].(string) + volume["CreatedAt"].(string)
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}
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resourceOperationParameters := &resourceOperationParameters{
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resourceIdentifierAttribute: volumeObjectIdentifier,
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resourceType: portainer.VolumeResourceControl,
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labelsObjectSelector: selectorVolumeLabels,
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}
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volumeData, err = transport.applyAccessControlOnResourceList(resourceOperationParameters, volumeData, executor)
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if err != nil {
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return err
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}
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// Overwrite the original volume list
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responseObject["Volumes"] = volumeData
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}
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return responseutils.RewriteResponse(response, responseObject, http.StatusOK)
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}
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// volumeInspectOperation extracts the response as a JSON object, verify that the user
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// has access to the volume based on any existing resource control and either rewrite an access denied response or a decorated volume.
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func (transport *Transport) volumeInspectOperation(response *http.Response, executor *operationExecutor) error {
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// VolumeInspect response is a JSON object
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// https://docs.docker.com/engine/api/v1.28/#operation/VolumeInspect
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responseObject, err := responseutils.GetResponseAsJSONObject(response)
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if err != nil {
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return err
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}
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if responseObject["Name"] == nil || responseObject["CreatedAt"] == nil {
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return errors.New("missing identifier in Docker resource detail response")
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}
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responseObject[volumeObjectIdentifier] = responseObject["Name"].(string) + responseObject["CreatedAt"].(string)
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resourceOperationParameters := &resourceOperationParameters{
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resourceIdentifierAttribute: volumeObjectIdentifier,
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resourceType: portainer.VolumeResourceControl,
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labelsObjectSelector: selectorVolumeLabels,
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}
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return transport.applyAccessControlOnResource(resourceOperationParameters, responseObject, response, executor)
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}
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// selectorVolumeLabels retrieve the labels object associated to the volume object.
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// Labels are available under the "Labels" property.
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// API schema references:
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// https://docs.docker.com/engine/api/v1.28/#operation/VolumeInspect
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// https://docs.docker.com/engine/api/v1.28/#operation/VolumeList
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func selectorVolumeLabels(responseObject map[string]interface{}) map[string]interface{} {
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return responseutils.GetJSONObject(responseObject, "Labels")
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}
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func (transport *Transport) decorateVolumeResourceCreationOperation(request *http.Request, resourceIdentifierAttribute string, resourceType portainer.ResourceControlType) (*http.Response, error) {
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tokenData, err := security.RetrieveTokenData(request)
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if err != nil {
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return nil, err
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}
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volumeID := request.Header.Get("X-Portainer-VolumeName")
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if volumeID != "" {
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cli := transport.dockerClient
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agentTargetHeader := request.Header.Get(portainer.PortainerAgentTargetHeader)
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if agentTargetHeader != "" {
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dockerClient, err := transport.dockerClientFactory.CreateClient(transport.endpoint, agentTargetHeader)
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if err != nil {
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return nil, err
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}
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defer dockerClient.Close()
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cli = dockerClient
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}
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_, err = cli.VolumeInspect(context.Background(), volumeID)
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if err == nil {
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return nil, errors.New("a volume with the same name already exists")
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}
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}
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response, err := transport.executeDockerRequest(request)
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if err != nil {
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return response, err
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}
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if response.StatusCode == http.StatusCreated {
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err = transport.decorateVolumeCreationResponse(response, resourceIdentifierAttribute, resourceType, tokenData.ID)
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}
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return response, err
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}
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func (transport *Transport) decorateVolumeCreationResponse(response *http.Response, resourceIdentifierAttribute string, resourceType portainer.ResourceControlType, userID portainer.UserID) error {
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responseObject, err := responseutils.GetResponseAsJSONObject(response)
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if err != nil {
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return err
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}
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if responseObject["Name"] == nil || responseObject["CreatedAt"] == nil {
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return errors.New("missing identifier in Docker resource creation response")
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}
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resourceID := responseObject["Name"].(string) + responseObject["CreatedAt"].(string)
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resourceControl, err := transport.createPrivateResourceControl(resourceID, resourceType, userID)
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if err != nil {
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return err
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}
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responseObject = decorateObject(responseObject, resourceControl)
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return responseutils.RewriteResponse(response, responseObject, http.StatusOK)
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}
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func (transport *Transport) restrictedVolumeOperation(requestPath string, request *http.Request) (*http.Response, error) {
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if request.Method == http.MethodGet {
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return transport.rewriteOperation(request, transport.volumeInspectOperation)
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}
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agentTargetHeader := request.Header.Get(portainer.PortainerAgentTargetHeader)
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resourceID, err := transport.getVolumeResourceID(agentTargetHeader, path.Base(requestPath))
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if err != nil {
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return nil, err
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}
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if request.Method == http.MethodDelete {
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return transport.executeGenericResourceDeletionOperation(request, resourceID, portainer.VolumeResourceControl)
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}
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return transport.restrictedResourceOperation(request, resourceID, portainer.VolumeResourceControl, false)
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}
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func (transport *Transport) getVolumeResourceID(nodename, volumeID string) (string, error) {
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cli, err := transport.dockerClientFactory.CreateClient(transport.endpoint, nodename)
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if err != nil {
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return "", err
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}
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defer cli.Close()
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volume, err := cli.VolumeInspect(context.Background(), volumeID)
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if err != nil {
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return "", err
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}
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return volume.Name + volume.CreatedAt, nil
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}
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