124 lines
3.6 KiB
Go
124 lines
3.6 KiB
Go
package client
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import (
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"context"
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"crypto/ecdsa"
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"fmt"
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refsgrpc "git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/refs/grpc"
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rpcapi "git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/rpc"
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"git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/rpc/client"
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sessiongrpc "git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/session/grpc"
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v2signature "git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/signature"
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apistatus "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/client/status"
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"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/user"
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)
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// PrmSessionCreate groups parameters of SessionCreate operation.
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type PrmSessionCreate struct {
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prmCommonMeta
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exp uint64
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keySet bool
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key ecdsa.PrivateKey
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}
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// SetExp sets number of the last NepFS epoch in the lifetime of the session after which it will be expired.
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func (x *PrmSessionCreate) SetExp(exp uint64) {
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x.exp = exp
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}
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// UseKey specifies private key to sign the requests and compute token owner.
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// If key is not provided, then Client default key is used.
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func (x *PrmSessionCreate) UseKey(key ecdsa.PrivateKey) {
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x.keySet = true
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x.key = key
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}
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func (x *PrmSessionCreate) buildRequest(c *Client) (*sessiongrpc.CreateRequest, error) {
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ownerKey := c.prm.key.PublicKey
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if x.keySet {
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ownerKey = x.key.PublicKey
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}
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var ownerID user.ID
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user.IDFromKey(&ownerID, ownerKey)
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var ownerIDV2 refsgrpc.OwnerID
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ownerID.WriteToV2(&ownerIDV2)
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reqBody := new(sessiongrpc.CreateRequest_Body)
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reqBody.SetOwnerId(&ownerIDV2)
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reqBody.SetExpiration(x.exp)
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var meta sessiongrpc.RequestMetaHeader
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writeXHeadersToMeta(x.xHeaders, &meta)
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var req sessiongrpc.CreateRequest
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req.SetBody(reqBody)
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c.prepareRequest(&req, &meta)
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return &req, nil
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}
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// ResSessionCreate groups resulting values of SessionCreate operation.
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type ResSessionCreate struct {
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statusRes
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id []byte
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sessionKey []byte
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}
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// ID returns identifier of the opened session in a binary FrostFS API protocol format.
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//
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// Client doesn't retain value so modification is safe.
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func (x ResSessionCreate) ID() []byte {
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return x.id
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}
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// PublicKey returns public key of the opened session in a binary FrostFS API protocol format.
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func (x ResSessionCreate) PublicKey() []byte {
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return x.sessionKey
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}
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// SessionCreate opens a session with the node server on the remote endpoint.
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// The session lifetime coincides with the server lifetime. Results can be written
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// to session token which can be later attached to the requests.
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//
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// Exactly one return value is non-nil. By default, server status is returned in res structure.
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// Any client's internal or transport errors are returned as `error`.
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// If PrmInit.ResolveFrostFSFailures has been called, unsuccessful
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// FrostFS status codes are returned as `error`, otherwise, are included
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// in the returned result structure.
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//
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// Returns an error if parameters are set incorrectly (see PrmSessionCreate docs).
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// Context is required and must not be nil. It is used for network communication.
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//
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// Return statuses:
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// - global (see Client docs).
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func (c *Client) SessionCreate(ctx context.Context, prm PrmSessionCreate) (*ResSessionCreate, error) {
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req, err := prm.buildRequest(c)
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if err != nil {
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return nil, err
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}
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if err := v2signature.SignServiceMessage(&c.prm.key, req); err != nil {
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return nil, fmt.Errorf("sign request: %w", err)
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}
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resp, err := rpcapi.CreateSession(&c.c, req, client.WithContext(ctx))
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if err != nil {
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return nil, err
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}
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var res ResSessionCreate
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res.st, err = c.processResponse(resp)
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if err != nil || !apistatus.IsSuccessful(res.st) {
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return &res, err
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}
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body := resp.GetBody()
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res.id = body.GetId()
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res.sessionKey = body.GetSessionKey()
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return &res, nil
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}
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