forked from TrueCloudLab/frostfs-node
71 lines
1.8 KiB
Go
71 lines
1.8 KiB
Go
package ape
|
|
|
|
import (
|
|
"context"
|
|
"fmt"
|
|
|
|
objectV2 "git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/object"
|
|
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"
|
|
policyengine "git.frostfs.info/TrueCloudLab/policy-engine/pkg/engine"
|
|
)
|
|
|
|
type checkerImpl struct {
|
|
chainRouter policyengine.ChainRouter
|
|
|
|
headerProvider HeaderProvider
|
|
}
|
|
|
|
func NewChecker(chainRouter policyengine.ChainRouter, headerProvider HeaderProvider) Checker {
|
|
return &checkerImpl{
|
|
chainRouter: chainRouter,
|
|
|
|
headerProvider: headerProvider,
|
|
}
|
|
}
|
|
|
|
type Prm struct {
|
|
Namespace string
|
|
|
|
Container cid.ID
|
|
|
|
// Object ID is omitted for some methods.
|
|
Object *oid.ID
|
|
|
|
// If Header is set, then object attributes and properties will be parsed from
|
|
// a request/response's header.
|
|
Header *objectV2.Header
|
|
|
|
// Method must be represented only as a constant represented in native schema.
|
|
Method string
|
|
|
|
// Role must be representedonly as a constant represented in native schema.
|
|
Role string
|
|
|
|
// An encoded sender's public key string.
|
|
SenderKey string
|
|
}
|
|
|
|
var errMissingOID = fmt.Errorf("object ID is not set")
|
|
|
|
// CheckAPE checks if a request or a response is permitted creating an ape request and passing
|
|
// it to chain router.
|
|
func (c *checkerImpl) CheckAPE(ctx context.Context, prm Prm) error {
|
|
r, err := c.newAPERequest(ctx, prm)
|
|
if err != nil {
|
|
return fmt.Errorf("failed to create ape request: %w", err)
|
|
}
|
|
|
|
status, ruleFound, err := c.chainRouter.IsAllowed(apechain.Ingress,
|
|
policyengine.NewRequestTarget(prm.Namespace, prm.Container.EncodeToString()), r)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
if !ruleFound || status == apechain.Allow {
|
|
return nil
|
|
}
|
|
|
|
return fmt.Errorf("found denying rule for %s: %s", prm.Method, status)
|
|
}
|