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[#919] ape: Improve error messages in ape service

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* Wrap all APE middleware errors in apeErr that
  makes errors more explicit with status AccessDenied.
* Use denyingRuleErr for denying status from chain router.

Signed-off-by: Airat Arifullin <a.arifullin@yadro.com>
This commit is contained in:
Airat Arifullin 2024-01-18 14:35:52 +03:00 committed by Evgenii Stratonikov
parent f526f49995
commit f2f3294fc3
4 changed files with 32 additions and 28 deletions
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11
pkg/services/object/ape/checker.go
View file

@ -5,7 +5,6 @@ import (
"fmt"
objectV2 "git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/object"
apistatus "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/client/status"
cid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container/id"
oid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id"
apechain "git.frostfs.info/TrueCloudLab/policy-engine/pkg/chain"
@ -70,13 +69,5 @@ func (c *checkerImpl) CheckAPE(ctx context.Context, prm Prm) error {
return nil
}
return apeErr(prm.Method, status)
}
const accessDeniedAPEReasonFmt = "access to operation %s is denied by access policy engine: %s"
func apeErr(op string, status apechain.Status) error {
errAccessDenied := &apistatus.ObjectAccessDenied{}
errAccessDenied.WriteReason(fmt.Sprintf(accessDeniedAPEReasonFmt, op, status.String()))
return errAccessDenied
return fmt.Errorf("found denying rule for %s: %s", prm.Method, status)
}

6
pkg/services/object/ape/checker_test.go
View file

@ -308,7 +308,8 @@ func TestAPECheck(t *testing.T) {
ms := inmemory.NewInmemoryMorphRuleChainStorage()
ls.AddOverride(chain.Ingress, policyengine.ContainerTarget(test.container), &chain.Chain{
Rules: test.containerRules,
Rules: test.containerRules,
MatchType: chain.MatchTypeFirstMatch,
})
router := policyengine.NewDefaultChainRouterWithLocalOverrides(ms, ls)
@ -336,8 +337,7 @@ func TestAPECheck(t *testing.T) {
err := checker.CheckAPE(context.Background(), prm)
if test.expectAPEErr {
aErr := apeErr(method, chain.AccessDenied)
require.ErrorAs(t, err, &aErr)
require.Error(t, err)
} else {
require.NoError(t, err)
}

13
pkg/services/object/ape/errors.go Normal file
View file

@ -0,0 +1,13 @@
package ape
import (
"fmt"
apistatus "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/client/status"
)
func toStatusErr(err error) error {
errAccessDenied := &apistatus.ObjectAccessDenied{}
errAccessDenied.WriteReason(fmt.Sprintf("ape denied request: %s", err.Error()))
return errAccessDenied
}

30
pkg/services/object/ape/service.go
View file

@ -69,7 +69,7 @@ func (g *getStreamBasicChecker) Send(resp *objectV2.GetResponse) error {
if partInit, ok := resp.GetBody().GetObjectPart().(*objectV2.GetObjectPartInit); ok {
cnrID, objID, err := getAddressParamsSDK(partInit.GetHeader().GetContainerID(), partInit.GetObjectID())
if err != nil {
return err
return toStatusErr(err)
}
prm := Prm{
@ -82,7 +82,7 @@ func (g *getStreamBasicChecker) Send(resp *objectV2.GetResponse) error {
}
if err := g.apeChecker.CheckAPE(g.Context(), prm); err != nil {
return err
return toStatusErr(err)
}
}
return g.GetObjectStream.Send(resp)
@ -103,12 +103,12 @@ func requestContext(ctx context.Context) (*objectSvc.RequestContext, error) {
func (c *Service) Get(request *objectV2.GetRequest, stream objectSvc.GetObjectStream) error {
cnrID, objID, err := getAddressParamsSDK(request.GetBody().GetAddress().GetContainerID(), request.GetBody().GetAddress().GetObjectID())
if err != nil {
return err
return toStatusErr(err)
}
reqCtx, err := requestContext(stream.Context())
if err != nil {
return err
return toStatusErr(err)
}
err = c.apeChecker.CheckAPE(stream.Context(), Prm{
@ -120,7 +120,7 @@ func (c *Service) Get(request *objectV2.GetRequest, stream objectSvc.GetObjectSt
SenderKey: hex.EncodeToString(reqCtx.SenderKey),
})
if err != nil {
return err
return toStatusErr(err)
}
return c.next.Get(request, &getStreamBasicChecker{
@ -139,12 +139,12 @@ func (p *putStreamBasicChecker) Send(ctx context.Context, request *objectV2.PutR
if partInit, ok := request.GetBody().GetObjectPart().(*objectV2.PutObjectPartInit); ok {
reqCtx, err := requestContext(ctx)
if err != nil {
return err
return toStatusErr(err)
}
cnrID, objID, err := getAddressParamsSDK(partInit.GetHeader().GetContainerID(), partInit.GetObjectID())
if err != nil {
return err
return toStatusErr(err)
}
prm := Prm{
@ -158,7 +158,7 @@ func (p *putStreamBasicChecker) Send(ctx context.Context, request *objectV2.PutR
}
if err := p.apeChecker.CheckAPE(ctx, prm); err != nil {
return err
return toStatusErr(err)
}
}
@ -244,13 +244,13 @@ func (c *Service) Search(request *objectV2.SearchRequest, stream objectSvc.Searc
var cnrID cid.ID
if cnrV2 := request.GetBody().GetContainerID(); cnrV2 != nil {
if err := cnrID.ReadFromV2(*cnrV2); err != nil {
return err
return toStatusErr(err)
}
}
reqCtx, err := requestContext(stream.Context())
if err != nil {
return err
return toStatusErr(err)
}
err = c.apeChecker.CheckAPE(stream.Context(), Prm{
@ -261,7 +261,7 @@ func (c *Service) Search(request *objectV2.SearchRequest, stream objectSvc.Searc
SenderKey: hex.EncodeToString(reqCtx.SenderKey),
})
if err != nil {
return err
return toStatusErr(err)
}
return c.next.Search(request, stream)
@ -301,12 +301,12 @@ func (c *Service) Delete(ctx context.Context, request *objectV2.DeleteRequest) (
func (c *Service) GetRange(request *objectV2.GetRangeRequest, stream objectSvc.GetObjectRangeStream) error {
cnrID, objID, err := getAddressParamsSDK(request.GetBody().GetAddress().GetContainerID(), request.GetBody().GetAddress().GetObjectID())
if err != nil {
return err
return toStatusErr(err)
}
reqCtx, err := requestContext(stream.Context())
if err != nil {
return err
return toStatusErr(err)
}
err = c.apeChecker.CheckAPE(stream.Context(), Prm{
@ -318,7 +318,7 @@ func (c *Service) GetRange(request *objectV2.GetRangeRequest, stream objectSvc.G
SenderKey: hex.EncodeToString(reqCtx.SenderKey),
})
if err != nil {
return err
return toStatusErr(err)
}
return c.next.GetRange(request, stream)
@ -381,7 +381,7 @@ func (c *Service) PutSingle(ctx context.Context, request *objectV2.PutSingleRequ
}
if err = c.apeChecker.CheckAPE(ctx, prm); err != nil {
return nil, err
return nil, toStatusErr(err)
}
return c.next.PutSingle(ctx, request)