frostfs-node/pkg/services/object/ape/request.go
Airat Arifullin c8baf76fae
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[#872] object: Introduce APE middlewar for object service
Signed-off-by: Airat Arifullin <a.arifullin@yadro.com>
2024-01-12 18:41:35 +03:00

159 lines
4.8 KiB
Go

package ape
import (
"context"
"fmt"
"strconv"
objectV2 "git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/object"
"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container/acl"
cid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container/id"
objectSDK "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object"
oid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id"
aperesource "git.frostfs.info/TrueCloudLab/policy-engine/pkg/resource"
nativeschema "git.frostfs.info/TrueCloudLab/policy-engine/schema/native"
)
type request struct {
operation string
resource *resource
properties map[string]string
}
var _ aperesource.Request = (*request)(nil)
type resource struct {
name string
properties map[string]string
}
var _ aperesource.Resource = (*resource)(nil)
func (r *resource) Name() string {
return r.name
}
func (r *resource) Property(key string) string {
return r.properties[key]
}
func (r *request) Operation() string {
return r.operation
}
func (r *request) Property(key string) string {
return r.properties[key]
}
func (r *request) Resource() aperesource.Resource {
return r.resource
}
func nativeSchemaRole(role acl.Role) string {
switch role {
case acl.RoleOwner:
return nativeschema.PropertyValueContainerRoleOwner
case acl.RoleContainer:
return nativeschema.PropertyValueContainerRoleContainer
case acl.RoleInnerRing:
return nativeschema.PropertyValueContainerRoleIR
case acl.RoleOthers:
return nativeschema.PropertyValueContainerRoleOthers
default:
return ""
}
}
func resourceName(cid cid.ID, oid *oid.ID, namespace string) string {
if namespace == "root" || namespace == "" {
if oid != nil {
return fmt.Sprintf(nativeschema.ResourceFormatRootContainerObject, cid.EncodeToString(), oid.EncodeToString())
}
return fmt.Sprintf(nativeschema.ResourceFormatRootContainerObjects, cid.EncodeToString())
}
if oid != nil {
return fmt.Sprintf(nativeschema.ResourceFormatNamespaceContainerObject, namespace, cid.EncodeToString(), oid.EncodeToString())
}
return fmt.Sprintf(nativeschema.ResourceFormatNamespaceContainerObjects, namespace, cid.EncodeToString())
}
// objectProperties collects object properties from address parameters and a header if it is passed.
func objectProperties(cnr cid.ID, oid *oid.ID, header *objectV2.Header) map[string]string {
objectProps := map[string]string{
nativeschema.PropertyKeyObjectContainerID: cnr.EncodeToString(),
}
if oid != nil {
objectProps[nativeschema.PropertyKeyObjectID] = oid.String()
}
if header == nil {
return objectProps
}
objV2 := new(objectV2.Object)
objV2.SetHeader(header)
objSDK := objectSDK.NewFromV2(objV2)
objectProps[nativeschema.PropertyKeyObjectVersion] = objSDK.Version().String()
objectProps[nativeschema.PropertyKeyObjectOwnerID] = objSDK.OwnerID().EncodeToString()
objectProps[nativeschema.PropertyKeyObjectCreationEpoch] = strconv.Itoa(int(objSDK.CreationEpoch()))
objectProps[nativeschema.PropertyKeyObjectPayloadLength] = strconv.Itoa(int(objSDK.PayloadSize()))
objectProps[nativeschema.PropertyKeyObjectType] = objSDK.Type().String()
pcs, isSet := objSDK.PayloadChecksum()
if isSet {
objectProps[nativeschema.PropertyKeyObjectPayloadHash] = pcs.String()
}
hcs, isSet := objSDK.PayloadHomomorphicHash()
if isSet {
objectProps[nativeschema.PropertyKeyObjectHomomorphicHash] = hcs.String()
}
for _, attr := range header.GetAttributes() {
objectProps[attr.GetKey()] = attr.GetValue()
}
return objectProps
}
// newAPERequest creates an APE request to be passed to a chain router. It collects resource properties from
// header provided by headerProvider. If it cannot be found in headerProvider, then properties are
// initialized from header given in prm (if it is set). Otherwise, just CID and OID are set to properties.
func (c *checkerImpl) newAPERequest(ctx context.Context, prm Prm) (*request, error) {
switch prm.Method {
case nativeschema.MethodGetObject,
nativeschema.MethodHeadObject,
nativeschema.MethodRangeObject,
nativeschema.MethodHashObject,
nativeschema.MethodDeleteObject:
if prm.Object == nil {
return nil, fmt.Errorf("method %s: %w", prm.Method, errMissingOID)
}
case nativeschema.MethodSearchObject, nativeschema.MethodPutObject:
default:
return nil, fmt.Errorf("unknown method: %s", prm.Method)
}
var header *objectV2.Header
if prm.Header != nil {
header = prm.Header
} else if prm.Object != nil {
headerObjSDK, err := c.headerProvider.GetHeader(ctx, prm.Container, *prm.Object)
if err == nil {
header = headerObjSDK.ToV2().GetHeader()
}
}
return &request{
operation: prm.Method,
resource: &resource{
name: resourceName(prm.Container, prm.Object, prm.Namespace),
properties: objectProperties(prm.Container, prm.Object, header),
},
properties: map[string]string{
nativeschema.PropertyKeyActorPublicKey: prm.SenderKey,
nativeschema.PropertyKeyActorRole: prm.Role,
},
}, nil
}