[#121] client: Make PrmObjectHash fields public

* Introduce buildRequest for PrmObjectHash

Signed-off-by: Airat Arifullin <a.arifullin@yadro.com>
This commit is contained in:
Airat Arifullin 2023-09-04 12:42:55 +03:00 committed by Evgenii Stratonikov
parent 303508328a
commit aa12d8c6a6

View file

@ -13,121 +13,53 @@ import (
v2session "git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/session"
"git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/signature"
"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/bearer"
"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/checksum"
apistatus "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/client/status"
cid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container/id"
"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object"
oid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id"
"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/session"
)
// PrmObjectHash groups parameters of ObjectHash operation.
type PrmObjectHash struct {
meta v2session.RequestMetaHeader
XHeaders []string
body v2object.GetRangeHashRequestBody
BearerToken *bearer.Token
csAlgo v2refs.ChecksumType
Session *session.Object
addr v2refs.Address
Local bool
keySet bool
key ecdsa.PrivateKey
Ranges []object.Range
Salt []byte
ChecksumType checksum.Type
ContainerID *cid.ID
ObjectID *oid.ID
Key *ecdsa.PrivateKey
}
// UseKey specifies private key to sign the requests.
// If key is not provided, then Client default key is used.
func (x *PrmObjectHash) UseKey(key ecdsa.PrivateKey) {
x.keySet = true
x.key = key
}
// MarkLocal tells the server to execute the operation locally.
func (x *PrmObjectHash) MarkLocal() {
x.meta.SetTTL(1)
}
// WithinSession specifies session within which object should be read.
//
// Creator of the session acquires the authorship of the request.
// This may affect the execution of an operation (e.g. access control).
//
// Must be signed.
func (x *PrmObjectHash) WithinSession(t session.Object) {
var tv2 v2session.Token
t.WriteToV2(&tv2)
x.meta.SetSessionToken(&tv2)
}
// WithBearerToken attaches bearer token to be used for the operation.
//
// If set, underlying eACL rules will be used in access control.
//
// Must be signed.
func (x *PrmObjectHash) WithBearerToken(t bearer.Token) {
var v2token acl.BearerToken
t.WriteToV2(&v2token)
x.meta.SetBearerToken(&v2token)
}
// FromContainer specifies FrostFS container of the object.
// Required parameter.
func (x *PrmObjectHash) FromContainer(id cid.ID) {
var cidV2 v2refs.ContainerID
id.WriteToV2(&cidV2)
x.addr.SetContainerID(&cidV2)
}
// ByID specifies identifier of the requested object.
// Required parameter.
func (x *PrmObjectHash) ByID(id oid.ID) {
var idV2 v2refs.ObjectID
id.WriteToV2(&idV2)
x.addr.SetObjectID(&idV2)
}
// SetRangeList sets list of ranges in (offset, length) pair format.
// Required parameter.
//
// If passed as slice, then it must not be mutated before the operation completes.
func (x *PrmObjectHash) SetRangeList(r ...uint64) {
ln := len(r)
if ln%2 != 0 {
panic("odd number of range parameters")
}
rs := make([]v2object.Range, ln/2)
for i := 0; i < ln/2; i++ {
rs[i].SetOffset(r[2*i])
rs[i].SetLength(r[2*i+1])
}
x.body.SetRanges(rs)
// Deprecated: Use PrmObjectHash.Key instead.
func (prm *PrmObjectHash) UseKey(key ecdsa.PrivateKey) {
prm.Key = &key
}
// TillichZemorAlgo changes the hash function to Tillich-Zemor
// (https://link.springer.com/content/pdf/10.1007/3-540-48658-5_5.pdf).
//
// By default, SHA256 hash function is used.
func (x *PrmObjectHash) TillichZemorAlgo() {
x.csAlgo = v2refs.TillichZemor
}
// UseSalt sets the salt to XOR the data range before hashing.
// By default, SHA256 hash function is used/.
//
// Must not be mutated before the operation completes.
func (x *PrmObjectHash) UseSalt(salt []byte) {
x.body.SetSalt(salt)
}
// WithXHeaders specifies list of extended headers (string key-value pairs)
// to be attached to the request. Must have an even length.
//
// Slice must not be mutated until the operation completes.
func (x *PrmObjectHash) WithXHeaders(hs ...string) {
writeXHeadersToMeta(hs, &x.meta)
// Deprecated: Use PrmObjectHash.ChecksumType instead.
func (prm *PrmObjectHash) TillichZemorAlgo() {
prm.ChecksumType = checksum.TZ
}
// ResObjectHash groups resulting values of ObjectHash operation.
@ -142,6 +74,76 @@ func (x ResObjectHash) Checksums() [][]byte {
return x.checksums
}
func (prm *PrmObjectHash) buildRequest(c *Client) (*v2object.GetRangeHashRequest, error) {
if prm.ContainerID == nil {
return nil, errorMissingContainer
}
if prm.ObjectID == nil {
return nil, errorMissingObject
}
if len(prm.XHeaders)%2 != 0 {
return nil, errorInvalidXHeaders
}
if len(prm.Ranges) == 0 {
return nil, errorMissingRanges
}
meta := new(v2session.RequestMetaHeader)
writeXHeadersToMeta(prm.XHeaders, meta)
if prm.BearerToken != nil {
v2BearerToken := new(acl.BearerToken)
prm.BearerToken.WriteToV2(v2BearerToken)
meta.SetBearerToken(v2BearerToken)
}
if prm.Session != nil {
v2SessionToken := new(v2session.Token)
prm.Session.WriteToV2(v2SessionToken)
meta.SetSessionToken(v2SessionToken)
}
if prm.Local {
meta.SetTTL(1)
}
addr := new(v2refs.Address)
cnrV2 := new(v2refs.ContainerID)
prm.ContainerID.WriteToV2(cnrV2)
addr.SetContainerID(cnrV2)
objV2 := new(v2refs.ObjectID)
prm.ObjectID.WriteToV2(objV2)
addr.SetObjectID(objV2)
rs := make([]v2object.Range, len(prm.Ranges))
for i := range prm.Ranges {
rs[i].SetOffset(prm.Ranges[i].GetOffset())
rs[i].SetLength(prm.Ranges[i].GetLength())
}
body := new(v2object.GetRangeHashRequestBody)
body.SetAddress(addr)
body.SetRanges(rs)
body.SetSalt(prm.Salt)
if prm.ChecksumType == checksum.Unknown {
body.SetType(v2refs.SHA256)
} else {
body.SetType(v2refs.ChecksumType(prm.ChecksumType))
}
req := new(v2object.GetRangeHashRequest)
req.SetBody(body)
c.prepareRequest(req, meta)
return req, nil
}
// ObjectHash requests checksum of the range list of the object payload using
// FrostFS API protocol.
//
@ -165,37 +167,22 @@ func (x ResObjectHash) Checksums() [][]byte {
// - *apistatus.ObjectOutOfRange;
// - *apistatus.SessionTokenExpired.
func (c *Client) ObjectHash(ctx context.Context, prm PrmObjectHash) (*ResObjectHash, error) {
switch {
case prm.addr.GetContainerID() == nil:
return nil, errorMissingContainer
case prm.addr.GetObjectID() == nil:
return nil, errorMissingObject
case len(prm.body.GetRanges()) == 0:
return nil, errorMissingRanges
req, err := prm.buildRequest(c)
if err != nil {
return nil, err
}
prm.body.SetAddress(&prm.addr)
if prm.csAlgo == v2refs.UnknownChecksum {
prm.body.SetType(v2refs.SHA256)
} else {
prm.body.SetType(prm.csAlgo)
}
var req v2object.GetRangeHashRequest
c.prepareRequest(&req, &prm.meta)
req.SetBody(&prm.body)
key := c.prm.key
if prm.keySet {
key = prm.key
if prm.Key != nil {
key = *prm.Key
}
err := signature.SignServiceMessage(&key, &req)
err = signature.SignServiceMessage(&key, req)
if err != nil {
return nil, fmt.Errorf("sign request: %w", err)
}
resp, err := rpcapi.HashObjectRange(&c.c, &req, client.WithContext(ctx))
resp, err := rpcapi.HashObjectRange(&c.c, req, client.WithContext(ctx))
if err != nil {
return nil, fmt.Errorf("write request: %w", err)
}