[#121] pool: Make PrmContainerEACL fields public

Signed-off-by: Airat Arifullin <a.arifullin@yadro.com>

.forgejo/workflows/dco.yml

@@ -13,9 +13,9 @@ jobs:
       - name: Setup Go
         uses: actions/setup-go@v3
         with:
-          go-version: '1.20'
+          go-version: '1.21'
 
       - name: Run commit format checker
-        uses: https://git.alexvan.in/alexvanin/dco-go@v1
+        uses: https://git.frostfs.info/TrueCloudLab/dco-go@v2
         with:
-          from: 406c2324
+          from: 'origin/${{ github.event.pull_request.base.ref }}'

client/accounting.go

@@ -2,12 +2,16 @@ package client
 
 import (
 	"context"
+	"fmt"
 
 	v2accounting "git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/accounting"
 	"git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/refs"
 	rpcapi "git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/rpc"
 	"git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/rpc/client"
+	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/accounting"
+	apistatus "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/client/status"
 	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/user"
 )
 
@@ -26,6 +30,24 @@ func (x *PrmBalanceGet) SetAccount(id user.ID) {
 	x.accountSet = true
 }
 
+func (x *PrmBalanceGet) buildRequest(c *Client) (*v2accounting.BalanceRequest, error) {
+	if !x.accountSet {
+		return nil, errorAccountNotSet
+	}
+
+	var accountV2 refs.OwnerID
+	x.account.WriteToV2(&accountV2)
+
+	var body v2accounting.BalanceRequestBody
+	body.SetOwnerID(&accountV2)
+
+	var req v2accounting.BalanceRequest
+	req.SetBody(&body)
+
+	c.prepareRequest(&req, new(v2session.RequestMetaHeader))
+	return &req, nil
+}
+
 // ResBalanceGet groups resulting values of BalanceGet operation.
 type ResBalanceGet struct {
 	statusRes
@@ -52,57 +74,35 @@ func (x ResBalanceGet) Amount() accounting.Decimal {
 // Return statuses:
 //   - global (see Client docs).
 func (c *Client) BalanceGet(ctx context.Context, prm PrmBalanceGet) (*ResBalanceGet, error) {
-	if !prm.accountSet {
-		return nil, errorAccountNotSet
+	req, err := prm.buildRequest(c)
+	if err != nil {
+		return nil, err
 	}
 
-	// form request body
-	var accountV2 refs.OwnerID
-	prm.account.WriteToV2(&accountV2)
-
-	var body v2accounting.BalanceRequestBody
-	body.SetOwnerID(&accountV2)
-
-	// form request
-	var req v2accounting.BalanceRequest
-
-	req.SetBody(&body)
-
-	// init call context
-
-	var (
-		cc  contextCall
-		res ResBalanceGet
-	)
-
-	c.initCallContext(&cc)
-	cc.meta = prm.prmCommonMeta
-	cc.req = &req
-	cc.statusRes = &res
-	cc.call = func() (responseV2, error) {
-		return rpcapi.Balance(&c.c, &req, client.WithContext(ctx))
+	if err := signature.SignServiceMessage(&c.prm.key, req); err != nil {
+		return nil, fmt.Errorf("sign request: %w", err)
+	}
+
+	resp, err := rpcapi.Balance(&c.c, req, client.WithContext(ctx))
+	if err != nil {
+		return nil, err
+	}
+
+	var res ResBalanceGet
+	res.st, err = c.processResponse(resp)
+	if err != nil || !apistatus.IsSuccessful(res.st) {
+		return &res, err
 	}
-	cc.result = func(r responseV2) {
-		resp := r.(*v2accounting.BalanceResponse)
 
 	const fieldBalance = "balance"
 
 	bal := resp.GetBody().GetBalance()
 	if bal == nil {
-			cc.err = newErrMissingResponseField(fieldBalance)
-			return
+		return &res, newErrMissingResponseField(fieldBalance)
 	}
 
-		cc.err = res.amount.ReadFromV2(*bal)
-		if cc.err != nil {
-			cc.err = newErrInvalidResponseField(fieldBalance, cc.err)
+	if err := res.amount.ReadFromV2(*bal); err != nil {
+		return &res, newErrInvalidResponseField(fieldBalance, err)
 	}
-	}
-
-	// process call
-	if !cc.processCall() {
-		return nil, cc.err
-	}
-
 	return &res, nil
 }

client/common.go

@@ -1,7 +1,6 @@
 package client
 
 import (
-	"crypto/ecdsa"
 	"errors"
 	"fmt"
 
@@ -13,21 +12,11 @@ import (
 	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/version"
 )
 
-// common interface of resulting structures with API status.
-type resCommon interface {
-	setStatus(apistatus.Status)
-}
-
 // structure is embedded to all resulting types in order to inherit status-related methods.
 type statusRes struct {
 	st apistatus.Status
 }
 
-// setStatus implements resCommon interface method.
-func (x *statusRes) setStatus(st apistatus.Status) {
-	x.st = st
-}
-
 // Status returns server's status return.
 //
 // Use apistatus package functionality to handle the status.
@@ -85,89 +74,12 @@ var (
 	errorInvalidXHeaders      = errors.New("xheaders must be presented only as key-value pairs")
 )
 
-// groups all the details required to send a single request and process a response to it.
-type contextCall struct {
-	// ==================================================
-	// state vars that do not require explicit initialization
-
-	// final error to be returned from client method
-	err error
-
-	// received response
-	resp responseV2
-
-	// ==================================================
-	// shared parameters which are set uniformly on all calls
-
-	// request signing key
-	key ecdsa.PrivateKey
-
-	// callback prior to processing the response by the client
-	callbackResp func(ResponseMetaInfo) error
-
-	// if set, protocol errors will be expanded into a final error
-	resolveAPIFailures bool
-
-	// FrostFS network magic
-	netMagic uint64
-
-	// Meta parameters
-	meta prmCommonMeta
-
-	// ==================================================
-	// custom call parameters
-
-	// structure of the call result
-	statusRes resCommon
-
-	// request to be signed with a key and sent
-	req request
-
-	// function to send a request (unary) and receive a response
-	call func() (responseV2, error)
-
-	// function to send the request (req field)
-	wReq func() error
-
-	// function to recv the response (resp field)
-	rResp func() error
-
-	// function to close the message stream
-	closer func() error
-
-	// function of writing response fields to the resulting structure (optional)
-	result func(v2 responseV2)
-}
-
 type request interface {
 	GetMetaHeader() *v2session.RequestMetaHeader
 	SetMetaHeader(*v2session.RequestMetaHeader)
 	SetVerificationHeader(*v2session.RequestVerificationHeader)
 }
 
-// sets needed fields of the request meta header.
-func (x contextCall) prepareRequest() {
-	meta := x.req.GetMetaHeader()
-	if meta == nil {
-		meta = new(v2session.RequestMetaHeader)
-		x.req.SetMetaHeader(meta)
-	}
-
-	if meta.GetTTL() == 0 {
-		meta.SetTTL(2)
-	}
-
-	if meta.GetVersion() == nil {
-		var verV2 refs.Version
-		version.Current().WriteToV2(&verV2)
-		meta.SetVersion(&verV2)
-	}
-
-	meta.SetNetworkMagic(x.netMagic)
-
-	writeXHeadersToMeta(x.meta.xHeaders, meta)
-}
-
 func (c *Client) prepareRequest(req request, meta *v2session.RequestMetaHeader) {
 	ttl := meta.GetTTL()
 	if ttl == 0 {
@@ -187,75 +99,6 @@ func (c *Client) prepareRequest(req request, meta *v2session.RequestMetaHeader)
 	req.SetMetaHeader(meta)
 }
 
-// prepares, signs and writes the request. Result means success.
-// If failed, contextCall.err contains the reason.
-func (x *contextCall) writeRequest() bool {
-	x.prepareRequest()
-
-	x.req.SetVerificationHeader(nil)
-
-	// sign the request
-	x.err = signature.SignServiceMessage(&x.key, x.req)
-	if x.err != nil {
-		x.err = fmt.Errorf("sign request: %w", x.err)
-		return false
-	}
-
-	x.err = x.wReq()
-	if x.err != nil {
-		x.err = fmt.Errorf("write request: %w", x.err)
-		return false
-	}
-
-	return true
-}
-
-// performs common actions of response processing and writes any problem as a result status or client error
-// (in both cases returns false).
-//
-// Actions:
-//   - verify signature (internal);
-//   - call response callback (internal);
-//   - unwrap status error (optional).
-func (x *contextCall) processResponse() bool {
-	// call response callback if set
-	if x.callbackResp != nil {
-		x.err = x.callbackResp(ResponseMetaInfo{
-			key:   x.resp.GetVerificationHeader().GetBodySignature().GetKey(),
-			epoch: x.resp.GetMetaHeader().GetEpoch(),
-		})
-		if x.err != nil {
-			x.err = fmt.Errorf("response callback error: %w", x.err)
-			return false
-		}
-	}
-
-	// note that we call response callback before signature check since it is expected more lightweight
-	// while verification needs marshaling
-
-	// verify response signature
-	x.err = signature.VerifyServiceMessage(x.resp)
-	if x.err != nil {
-		x.err = fmt.Errorf("invalid response signature: %w", x.err)
-		return false
-	}
-
-	// get result status
-	st := apistatus.FromStatusV2(x.resp.GetMetaHeader().GetStatus())
-
-	// unwrap unsuccessful status and return it
-	// as error if client has been configured so
-	successfulStatus := apistatus.IsSuccessful(st)
-
-	if x.resolveAPIFailures {
-		x.err = apistatus.ErrFromStatus(st)
-	} else {
-		x.statusRes.setStatus(st)
-	}
-
-	return successfulStatus
-}
-
 // processResponse verifies response signature and converts status to an error if needed.
 func (c *Client) processResponse(resp responseV2) (apistatus.Status, error) {
 	if c.prm.cbRespInfo != nil {
@@ -280,78 +123,6 @@ func (c *Client) processResponse(resp responseV2) (apistatus.Status, error) {
 	return st, nil
 }
 
-// reads response (if rResp is set) and processes it. Result means success.
-// If failed, contextCall.err (or statusRes if resolveAPIFailures is set) contains the reason.
-func (x *contextCall) readResponse() bool {
-	if x.rResp != nil {
-		x.err = x.rResp()
-		if x.err != nil {
-			x.err = fmt.Errorf("read response: %w", x.err)
-			return false
-		}
-	}
-
-	return x.processResponse()
-}
-
-// closes the message stream (if closer is set) and writes the results (if result is set).
-// Return means success. If failed, contextCall.err contains the reason.
-func (x *contextCall) close() bool {
-	if x.closer != nil {
-		x.err = x.closer()
-		if x.err != nil {
-			x.err = fmt.Errorf("close RPC: %w", x.err)
-			return false
-		}
-	}
-
-	// write response to resulting structure
-	if x.result != nil {
-		x.result(x.resp)
-	}
-
-	return x.err == nil
-}
-
-// goes through all stages of sending a request and processing a response. Returns true if successful.
-// If failed, contextCall.err contains the reason.
-func (x *contextCall) processCall() bool {
-	// set request writer
-	x.wReq = func() error {
-		var err error
-		x.resp, err = x.call()
-		return err
-	}
-
-	// write request
-	ok := x.writeRequest()
-	if !ok {
-		return false
-	}
-
-	// read response
-	ok = x.readResponse()
-	if !ok {
-		return x.err == nil
-	}
-
-	// close and write response to resulting structure
-	ok = x.close()
-	if !ok {
-		return false
-	}
-
-	return x.err == nil
-}
-
-// initializes static cross-call parameters inherited from client.
-func (c *Client) initCallContext(ctx *contextCall) {
-	ctx.key = c.prm.key
-	ctx.resolveAPIFailures = c.prm.resolveFrostFSErrors
-	ctx.callbackResp = c.prm.cbRespInfo
-	ctx.netMagic = c.prm.netMagic
-}
-
 // ExecRaw executes f with underlying git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/rpc/client.Client
 // instance. Communicate over the Protocol Buffers protocol in a more flexible way:
 // most often used to transmit data over a fixed version of the FrostFS protocol, as well

client/container_eacl.go

@@ -17,26 +17,31 @@ import (
 
 // PrmContainerEACL groups parameters of ContainerEACL operation.
 type PrmContainerEACL struct {
-	prmCommonMeta
+	// FrostFS request X-Headers.
+	XHeaders []string
 
-	idSet bool
-	id    cid.ID
+	ContainerID *cid.ID
 }
 
 // SetContainer sets identifier of the FrostFS container to read the eACL table.
 // Required parameter.
+//
+// Deprecated: Use PrmContainerEACL.ContainerID instead.
 func (x *PrmContainerEACL) SetContainer(id cid.ID) {
-	x.id = id
-	x.idSet = true
+	x.ContainerID = &id
 }
 
 func (x *PrmContainerEACL) buildRequest(c *Client) (*v2container.GetExtendedACLRequest, error) {
-	if !x.idSet {
+	if x.ContainerID == nil {
 		return nil, errorMissingContainer
 	}
 
+	if len(x.XHeaders)%2 != 0 {
+		return nil, errorInvalidXHeaders
+	}
+
 	var cidV2 refs.ContainerID
-	x.id.WriteToV2(&cidV2)
+	x.ContainerID.WriteToV2(&cidV2)
 
 	reqBody := new(v2container.GetExtendedACLRequestBody)
 	reqBody.SetContainerID(&cidV2)

pool/pool.go

@@ -523,8 +523,9 @@ func (c *clientWrapper) containerEACL(ctx context.Context, prm PrmContainerEACL)
 		return eacl.Table{}, err
 	}
 
-	var cliPrm sdkClient.PrmContainerEACL
-	cliPrm.SetContainer(prm.cnrID)
+	cliPrm := sdkClient.PrmContainerEACL{
+		ContainerID: &prm.ContainerID,
+	}
 
 	start := time.Now()
 	res, err := cl.ContainerEACL(ctx, cliPrm)
@@ -1521,12 +1522,12 @@ func (x *PrmContainerDelete) SetWaitParams(waitParams WaitParams) {
 
 // PrmContainerEACL groups parameters of GetEACL operation.
 type PrmContainerEACL struct {
-	cnrID cid.ID
+	ContainerID cid.ID
 }
 
 // SetContainerID specifies identifier of the FrostFS container to read the eACL table.
 func (x *PrmContainerEACL) SetContainerID(cnrID cid.ID) {
-	x.cnrID = cnrID
+	x.ContainerID = cnrID
 }
 
 // PrmContainerSetEACL groups parameters of SetEACL operation.
@@ -2150,7 +2151,7 @@ func (p *Pool) PutObject(ctx context.Context, prm PrmObjectPut) (oid.ID, error)
 	if err != nil {
 		// removes session token from cache in case of token error
 		p.checkSessionTokenErr(err, ctxCall.endpoint)
-		return id, fmt.Errorf("init writing on API client: %w", err)
+		return id, fmt.Errorf("init writing on API client %s: %w", ctxCall.endpoint, err)
 	}
 
 	return id, nil
@@ -2193,7 +2194,7 @@ func (p *Pool) DeleteObject(ctx context.Context, prm PrmObjectDelete) error {
 
 	return p.call(ctx, &cc, func() error {
 		if err = cc.client.objectDelete(ctx, prm); err != nil {
-			return fmt.Errorf("remove object via client: %w", err)
+			return fmt.Errorf("remove object via client %s: %w", cc.endpoint, err)
 		}
 
 		return nil
@@ -2244,7 +2245,10 @@ func (p *Pool) GetObject(ctx context.Context, prm PrmObjectGet) (ResGetObject, e
 
 	return res, p.call(ctx, &cc, func() error {
 		res, err = cc.client.objectGet(ctx, prm)
-		return err
+		if err != nil {
+			return fmt.Errorf("get object via client %s: %w", cc.endpoint, err)
+		}
+		return nil
 	})
 }
 
@@ -2266,7 +2270,10 @@ func (p *Pool) HeadObject(ctx context.Context, prm PrmObjectHead) (object.Object
 
 	return obj, p.call(ctx, &cc, func() error {
 		obj, err = cc.client.objectHead(ctx, prm)
-		return err
+		if err != nil {
+			return fmt.Errorf("head object via client %s: %w", cc.endpoint, err)
+		}
+		return nil
 	})
 }
 
@@ -2314,7 +2321,10 @@ func (p *Pool) ObjectRange(ctx context.Context, prm PrmObjectRange) (ResObjectRa
 
 	return res, p.call(ctx, &cc, func() error {
 		res, err = cc.client.objectRange(ctx, prm)
-		return err
+		if err != nil {
+			return fmt.Errorf("object range via client %s: %w", cc.endpoint, err)
+		}
+		return nil
 	})
 }
 
@@ -2375,7 +2385,10 @@ func (p *Pool) SearchObjects(ctx context.Context, prm PrmObjectSearch) (ResObjec
 
 	return res, p.call(ctx, &cc, func() error {
 		res, err = cc.client.objectSearch(ctx, prm)
-		return err
+		if err != nil {
+			return fmt.Errorf("search object via client %s: %w", cc.endpoint, err)
+		}
+		return nil
 	})
 }
 
@@ -2395,7 +2408,12 @@ func (p *Pool) PutContainer(ctx context.Context, prm PrmContainerPut) (cid.ID, e
 		return cid.ID{}, err
 	}
 
-	return cp.containerPut(ctx, prm)
+	cnrID, err := cp.containerPut(ctx, prm)
+	if err != nil {
+		return cid.ID{}, fmt.Errorf("put container via client '%s': %w", cp.address(), err)
+	}
+
+	return cnrID, nil
 }
 
 // GetContainer reads FrostFS container by ID.
@@ -2407,7 +2425,12 @@ func (p *Pool) GetContainer(ctx context.Context, prm PrmContainerGet) (container
 		return container.Container{}, err
 	}
 
-	return cp.containerGet(ctx, prm)
+	cnrs, err := cp.containerGet(ctx, prm)
+	if err != nil {
+		return container.Container{}, fmt.Errorf("get container via client '%s': %w", cp.address(), err)
+	}
+
+	return cnrs, nil
 }
 
 // ListContainers requests identifiers of the account-owned containers.
@@ -2417,7 +2440,12 @@ func (p *Pool) ListContainers(ctx context.Context, prm PrmContainerList) ([]cid.
 		return nil, err
 	}
 
-	return cp.containerList(ctx, prm)
+	cnrIDs, err := cp.containerList(ctx, prm)
+	if err != nil {
+		return []cid.ID{}, fmt.Errorf("list containers via client '%s': %w", cp.address(), err)
+	}
+
+	return cnrIDs, nil
 }
 
 // DeleteContainer sends request to remove the FrostFS container and waits for the operation to complete.
@@ -2434,7 +2462,12 @@ func (p *Pool) DeleteContainer(ctx context.Context, prm PrmContainerDelete) erro
 		return err
 	}
 
-	return cp.containerDelete(ctx, prm)
+	err = cp.containerDelete(ctx, prm)
+	if err != nil {
+		return fmt.Errorf("delete container via client '%s': %w", cp.address(), err)
+	}
+
+	return nil
 }
 
 // GetEACL reads eACL table of the FrostFS container.
@@ -2446,7 +2479,12 @@ func (p *Pool) GetEACL(ctx context.Context, prm PrmContainerEACL) (eacl.Table, e
 		return eacl.Table{}, err
 	}
 
-	return cp.containerEACL(ctx, prm)
+	eaclResult, err := cp.containerEACL(ctx, prm)
+	if err != nil {
+		return eacl.Table{}, fmt.Errorf("get EACL via client '%s': %w", cp.address(), err)
+	}
+
+	return eaclResult, nil
 }
 
 // SetEACL sends request to update eACL table of the FrostFS container and waits for the operation to complete.
@@ -2463,7 +2501,12 @@ func (p *Pool) SetEACL(ctx context.Context, prm PrmContainerSetEACL) error {
 		return err
 	}
 
-	return cp.containerSetEACL(ctx, prm)
+	err = cp.containerSetEACL(ctx, prm)
+	if err != nil {
+		return fmt.Errorf("set EACL via client '%s': %w", cp.address(), err)
+	}
+
+	return nil
 }
 
 // Balance requests current balance of the FrostFS account.
@@ -2475,15 +2518,24 @@ func (p *Pool) Balance(ctx context.Context, prm PrmBalanceGet) (accounting.Decim
 		return accounting.Decimal{}, err
 	}
 
-	return cp.balanceGet(ctx, prm)
+	balance, err := cp.balanceGet(ctx, prm)
+	if err != nil {
+		return accounting.Decimal{}, fmt.Errorf("get balance via client '%s': %w", cp.address(), err)
+	}
+
+	return balance, nil
 }
 
 // Statistic returns connection statistics.
 func (p Pool) Statistic() Statistic {
 	stat := Statistic{}
 	for _, inner := range p.innerPools {
+		nodes := make([]string, 0, len(inner.clients))
 		inner.lock.RLock()
 		for _, cl := range inner.clients {
+			if cl.isHealthy() {
+				nodes = append(nodes, cl.address())
+			}
 			node := NodeStatistic{
 				address:       cl.address(),
 				methods:       cl.methodsStatus(),
@@ -2494,6 +2546,9 @@ func (p Pool) Statistic() Statistic {
 			stat.overallErrors += node.overallErrors
 		}
 		inner.lock.RUnlock()
+		if len(stat.currentNodes) == 0 {
+			stat.currentNodes = nodes
+		}
 	}
 
 	return stat
@@ -2514,7 +2569,7 @@ func waitForContainerPresence(ctx context.Context, cli client, cnrID cid.ID, wai
 func waitForEACLPresence(ctx context.Context, cli client, cnrID *cid.ID, table *eacl.Table, waitParams *WaitParams) error {
 	var prm PrmContainerEACL
 	if cnrID != nil {
-		prm.SetContainerID(*cnrID)
+		prm.ContainerID = *cnrID
 	}
 
 	return waitFor(ctx, waitParams, func(ctx context.Context) bool {
@@ -2571,7 +2626,12 @@ func (p *Pool) NetworkInfo(ctx context.Context) (netmap.NetworkInfo, error) {
 		return netmap.NetworkInfo{}, err
 	}
 
-	return cp.networkInfo(ctx, prmNetworkInfo{})
+	netInfo, err := cp.networkInfo(ctx, prmNetworkInfo{})
+	if err != nil {
+		return netmap.NetworkInfo{}, fmt.Errorf("get network info via client '%s': %w", cp.address(), err)
+	}
+
+	return netInfo, nil
 }
 
 // Close closes the Pool and releases all the associated resources.

pool/statistic.go

@@ -9,6 +9,7 @@ import (
 type Statistic struct {
 	overallErrors uint64
 	nodes         []NodeStatistic
+	currentNodes  []string
 }
 
 // OverallErrors returns sum of errors on all connections. It doesn't decrease.
@@ -21,6 +22,12 @@ func (s Statistic) Nodes() []NodeStatistic {
 	return s.nodes
 }
 
+// CurrentNodes returns list of nodes of inner pool that has at least one healthy node.
+// These nodes have the same and the highest priority among the other healthy nodes.
+func (s Statistic) CurrentNodes() []string {
+	return s.currentNodes
+}
+
 // ErrUnknownNode indicate that node with current address is not found in list.
 var ErrUnknownNode = errors.New("unknown node")