3
0
Files
corteza/automation/rest/workflow.go
2021-07-08 11:22:11 +02:00

245 lines
7.4 KiB
Go

package rest
import (
"context"
"fmt"
"github.com/cortezaproject/corteza-server/automation/rest/request"
"github.com/cortezaproject/corteza-server/automation/service"
"github.com/cortezaproject/corteza-server/automation/types"
"github.com/cortezaproject/corteza-server/compose/automation"
cmpService "github.com/cortezaproject/corteza-server/compose/service"
cmpTypes "github.com/cortezaproject/corteza-server/compose/types"
"github.com/cortezaproject/corteza-server/pkg/api"
"github.com/cortezaproject/corteza-server/pkg/expr"
"github.com/cortezaproject/corteza-server/pkg/filter"
"github.com/cortezaproject/corteza-server/pkg/payload"
)
type (
Workflow struct {
svc interface {
Search(ctx context.Context, filter types.WorkflowFilter) (types.WorkflowSet, types.WorkflowFilter, error)
LookupByID(ctx context.Context, workflowID uint64) (*types.Workflow, error)
Create(ctx context.Context, new *types.Workflow) (*types.Workflow, error)
Update(ctx context.Context, upd *types.Workflow) (*types.Workflow, error)
DeleteByID(ctx context.Context, workflowID uint64) error
UndeleteByID(ctx context.Context, workflowID uint64) error
Exec(ctx context.Context, workflowID uint64, p types.WorkflowExecParams) (*expr.Vars, types.Stacktrace, error)
}
// cross-link with compose service to load module on resolved records
svcModule interface {
FindByID(ctx context.Context, namespaceID, moduleID uint64) (*cmpTypes.Module, error)
}
ac workflowAccessControl
}
workflowAccessControl interface {
CanGrant(context.Context) bool
CanUpdateWorkflow(context.Context, *types.Workflow) bool
CanDeleteWorkflow(context.Context, *types.Workflow) bool
CanUndeleteWorkflow(context.Context, *types.Workflow) bool
CanExecuteWorkflow(context.Context, *types.Workflow) bool
CanManageTriggersOnWorkflow(context.Context, *types.Workflow) bool
CanManageSessionsOnWorkflow(context.Context, *types.Workflow) bool
}
workflowPayload struct {
*types.Workflow
CanGrant bool `json:"canGrant"`
CanUpdateWorkflow bool `json:"canUpdateWorkflow"`
CanDeleteWorkflow bool `json:"canDeleteWorkflow"`
CanUndeleteWorkflow bool `json:"canUndeleteWorkflow"`
CanExecuteWorkflow bool `json:"canExecuteWorkflow"`
CanManageWorkflowTriggers bool `json:"canManageWorkflowTriggers"`
CanManageWorkflowSessions bool `json:"canManageWorkflowSessions"`
}
workflowSetPayload struct {
Filter types.WorkflowFilter `json:"filter"`
Set []*workflowPayload `json:"set"`
}
workflowExecPayload struct {
Results *expr.Vars `json:"results"`
Trace types.Stacktrace `json:"trace,omitempty"`
Error string `json:"error,omitempty"`
}
)
func (Workflow) New() *Workflow {
ctrl := &Workflow{}
ctrl.svc = service.DefaultWorkflow
ctrl.svcModule = cmpService.DefaultModule
ctrl.ac = service.DefaultAccessControl
return ctrl
}
func (ctrl Workflow) List(ctx context.Context, r *request.WorkflowList) (interface{}, error) {
var (
err error
f = types.WorkflowFilter{
WorkflowID: payload.ParseUint64s(r.WorkflowID),
Query: r.Query,
Labels: r.Labels,
Deleted: filter.State(r.Deleted),
Disabled: filter.State(r.Disabled),
}
)
if f.Paging, err = filter.NewPaging(r.Limit, r.PageCursor); err != nil {
return nil, err
}
if f.Sorting, err = filter.NewSorting(r.Sort); err != nil {
return nil, err
}
set, filter, err := ctrl.svc.Search(ctx, f)
return ctrl.makeFilterPayload(ctx, set, filter, err)
}
func (ctrl Workflow) Create(ctx context.Context, r *request.WorkflowCreate) (interface{}, error) {
workflow := &types.Workflow{
Handle: r.Handle,
Labels: r.Labels,
Meta: r.Meta,
Enabled: r.Enabled,
Trace: r.Trace,
KeepSessions: r.KeepSessions,
Scope: r.Scope,
Steps: r.Steps,
Paths: r.Paths,
RunAs: r.RunAs,
OwnedBy: r.OwnedBy,
}
wf, err := ctrl.svc.Create(ctx, workflow)
return ctrl.makePayload(ctx, wf, err)
}
func (ctrl Workflow) Update(ctx context.Context, r *request.WorkflowUpdate) (interface{}, error) {
workflow := &types.Workflow{
ID: r.WorkflowID,
Handle: r.Handle,
Labels: r.Labels,
Meta: r.Meta,
Enabled: r.Enabled,
Trace: r.Trace,
KeepSessions: r.KeepSessions,
Scope: r.Scope,
Steps: r.Steps,
Paths: r.Paths,
RunAs: r.RunAs,
OwnedBy: r.OwnedBy,
}
wf, err := ctrl.svc.Update(ctx, workflow)
return ctrl.makePayload(ctx, wf, err)
}
func (ctrl Workflow) Read(ctx context.Context, r *request.WorkflowRead) (interface{}, error) {
wf, err := ctrl.svc.LookupByID(ctx, r.WorkflowID)
return ctrl.makePayload(ctx, wf, err)
}
func (ctrl Workflow) Test(ctx context.Context, r *request.WorkflowTest) (interface{}, error) {
return nil, fmt.Errorf("not implemented")
}
func (ctrl Workflow) Delete(ctx context.Context, r *request.WorkflowDelete) (interface{}, error) {
return api.OK(), ctrl.svc.DeleteByID(ctx, r.WorkflowID)
}
func (ctrl Workflow) Undelete(ctx context.Context, r *request.WorkflowUndelete) (interface{}, error) {
return api.OK(), ctrl.svc.UndeleteByID(ctx, r.WorkflowID)
}
func (ctrl Workflow) Exec(ctx context.Context, r *request.WorkflowExec) (interface{}, error) {
var (
wep = &workflowExecPayload{}
err error
execParams = types.WorkflowExecParams{
StepID: r.StepID,
Trace: r.Trace,
Input: r.Input,
Async: r.Async,
Wait: r.Wait,
}
)
if execParams.Input != nil {
if err = execParams.Input.ResolveTypes(service.Registry().Type); err != nil {
return nil, err
}
}
// Now that all types are resolved we have to load modules and link them to records
//
// Very naive approach for now.
execParams.Input.Each(func(k string, v expr.TypedValue) error {
switch c := v.(type) {
case *automation.ComposeRecord:
rec := c.GetValue()
if rec == nil {
return nil
}
mod, err := ctrl.svcModule.FindByID(ctx, rec.NamespaceID, rec.ModuleID)
if err != nil {
return fmt.Errorf("failed to resolve ComposeRecord type: %w", err)
}
c.GetValue().SetModule(mod)
}
return nil
})
wep.Results, wep.Trace, err = ctrl.svc.Exec(ctx, r.WorkflowID, execParams)
if err != nil && wep.Trace != nil && r.Trace {
// in case of an error & trace enabled (and stacktrace present)
// we'll suppress the error
wep.Error = err.Error()
return wep, nil
}
return wep, err
}
func (ctrl Workflow) makeFilterPayload(ctx context.Context, set types.WorkflowSet, f types.WorkflowFilter, err error) (*workflowSetPayload, error) {
if err != nil {
return nil, err
}
wfsp := &workflowSetPayload{Filter: f, Set: make([]*workflowPayload, len(set))}
for i, wf := range set {
wfsp.Set[i], _ = ctrl.makePayload(ctx, wf, nil)
}
return wfsp, nil
}
func (ctrl Workflow) makePayload(ctx context.Context, wf *types.Workflow, err error) (*workflowPayload, error) {
if err != nil {
return nil, err
}
return &workflowPayload{
Workflow: wf,
CanGrant: ctrl.ac.CanGrant(ctx),
CanUpdateWorkflow: ctrl.ac.CanUpdateWorkflow(ctx, wf),
CanDeleteWorkflow: ctrl.ac.CanDeleteWorkflow(ctx, wf),
CanUndeleteWorkflow: ctrl.ac.CanUndeleteWorkflow(ctx, wf),
CanExecuteWorkflow: ctrl.ac.CanExecuteWorkflow(ctx, wf),
CanManageWorkflowTriggers: ctrl.ac.CanManageTriggersOnWorkflow(ctx, wf),
CanManageWorkflowSessions: ctrl.ac.CanManageSessionsOnWorkflow(ctx, wf),
}, nil
}