portainer/api/http/handler/stacks/stack_file.go

91 lines
3.8 KiB
Go

package stacks
import (
"net/http"
httperror "github.com/portainer/libhttp/error"
"github.com/portainer/libhttp/request"
"github.com/portainer/libhttp/response"
portainer "github.com/portainer/portainer/api"
"github.com/portainer/portainer/api/http/errors"
"github.com/portainer/portainer/api/http/security"
"github.com/portainer/portainer/api/internal/stackutils"
)
type stackFileResponse struct {
// Content of the Stack file
StackFileContent string `json:"StackFileContent" example:"version: 3\n services:\n web:\n image:nginx"`
}
// @id StackFileInspect
// @summary Retrieve the content of the Stack file for the specified stack
// @description Get Stack file content.
// @description **Access policy**: restricted
// @tags stacks
// @security ApiKeyAuth
// @security jwt
// @produce json
// @param id path int true "Stack identifier"
// @success 200 {object} stackFileResponse "Success"
// @failure 400 "Invalid request"
// @failure 403 "Permission denied"
// @failure 404 "Stack not found"
// @failure 500 "Server error"
// @router /stacks/{id}/file [get]
func (handler *Handler) stackFile(w http.ResponseWriter, r *http.Request) *httperror.HandlerError {
stackID, err := request.RetrieveNumericRouteVariableValue(r, "id")
if err != nil {
return &httperror.HandlerError{http.StatusBadRequest, "Invalid stack identifier route variable", err}
}
stack, err := handler.DataStore.Stack().Stack(portainer.StackID(stackID))
if handler.DataStore.IsErrObjectNotFound(err) {
return &httperror.HandlerError{http.StatusNotFound, "Unable to find a stack with the specified identifier inside the database", err}
} else if err != nil {
return &httperror.HandlerError{http.StatusInternalServerError, "Unable to find a stack with the specified identifier inside the database", err}
}
securityContext, err := security.RetrieveRestrictedRequestContext(r)
if err != nil {
return &httperror.HandlerError{http.StatusInternalServerError, "Unable to retrieve info from request context", err}
}
endpoint, err := handler.DataStore.Endpoint().Endpoint(stack.EndpointID)
if handler.DataStore.IsErrObjectNotFound(err) {
if !securityContext.IsAdmin {
return &httperror.HandlerError{http.StatusNotFound, "Unable to find an environment with the specified identifier inside the database", err}
}
} else if err != nil {
return &httperror.HandlerError{http.StatusInternalServerError, "Unable to find an environment with the specified identifier inside the database", err}
}
if endpoint != nil {
err = handler.requestBouncer.AuthorizedEndpointOperation(r, endpoint)
if err != nil {
return &httperror.HandlerError{http.StatusForbidden, "Permission denied to access environment", err}
}
if stack.Type == portainer.DockerSwarmStack || stack.Type == portainer.DockerComposeStack {
resourceControl, err := handler.DataStore.ResourceControl().ResourceControlByResourceIDAndType(stackutils.ResourceControlID(stack.EndpointID, stack.Name), portainer.StackResourceControl)
if err != nil {
return &httperror.HandlerError{http.StatusInternalServerError, "Unable to retrieve a resource control associated to the stack", err}
}
access, err := handler.userCanAccessStack(securityContext, endpoint.ID, resourceControl)
if err != nil {
return &httperror.HandlerError{http.StatusInternalServerError, "Unable to verify user authorizations to validate stack access", err}
}
if !access {
return &httperror.HandlerError{http.StatusForbidden, "Access denied to resource", errors.ErrResourceAccessDenied}
}
}
}
stackFileContent, err := handler.FileService.GetFileContent(stack.ProjectPath, stack.EntryPoint)
if err != nil {
return &httperror.HandlerError{http.StatusInternalServerError, "Unable to retrieve Compose file from disk", err}
}
return response.JSON(w, &stackFileResponse{StackFileContent: string(stackFileContent)})
}