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verification.go
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verification.go
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package event
import (
"context"
"fmt"
"reflect"
"github.com/pkg/errors"
"google.golang.org/protobuf/proto"
"github.com/stratosnet/sds/framework/core"
fwcrypto "github.com/stratosnet/sds/framework/crypto"
"github.com/stratosnet/sds/framework/msg/header"
fwtypes "github.com/stratosnet/sds/framework/types"
"github.com/stratosnet/sds/framework/utils"
"github.com/stratosnet/sds/pp/p2pserver"
"github.com/stratosnet/sds/pp/requests"
"github.com/stratosnet/sds/pp/setting"
"github.com/stratosnet/sds/sds-msg/protos"
)
func verifyRspUploadFile(msg *protos.RspUploadFile) error {
if msg == nil {
return errors.New("RspUploadFile msg is empty")
}
if msg.SpP2PAddress == "" || msg.NodeSign == nil {
return errors.New("key information is missing")
}
spP2pPubkey, err := requests.GetSpPubkey(msg.SpP2PAddress)
if err != nil {
return errors.Wrap(err, "failed to get sp's pubkey, ")
}
if !fwtypes.VerifyP2pAddrBytes(spP2pPubkey.Bytes(), msg.SpP2PAddress) {
return errors.Wrap(err, "failed to verify p2p address, ")
}
nodeSign := msg.NodeSign
msg.NodeSign = nil
msgBytes, err := proto.Marshal(msg)
if err != nil {
return errors.New("failed encoding sp's sign message")
}
msgSignBytes := fwcrypto.CalcHashBytes(msgBytes)
if !fwtypes.VerifyP2pSignBytes(spP2pPubkey.Bytes(), nodeSign, msgSignBytes) {
return errors.New("failed verifying sp's signature")
}
return nil
}
// RspUploadFileVerifier task level verifier for all messages carrying RspUploadFile in a uploading task
func RspUploadFileVerifier(ctx context.Context, msgType header.MsgType, target interface{}) error {
err := verifyReqId(ctx, msgType.Id)
if err != nil {
return err
}
msgBuf := core.MessageFromContext(ctx)
if err := proto.Unmarshal(msgBuf.MSGBody, target.(proto.Message)); err != nil {
return errors.Wrap(err, "protobuf Unmarshal error")
}
// RspUploadFile itself
if reflect.TypeOf(target) == reflect.TypeOf(&protos.RspUploadFile{}) {
// from sp, verify the p2p address
err := verifySpP2pAddress(ctx, msgType.Name)
if err != nil {
return err
}
return verifyRspUploadFile(target.(*protos.RspUploadFile))
} else {
// other types carrying a RspUploadFile
field := reflect.ValueOf(target).Elem().FieldByName("RspUploadFile")
if field.IsValid() {
return verifyRspUploadFile(field.Interface().(*protos.RspUploadFile))
} else {
return errors.New("field of RspUploadFile is not found in the message")
}
}
}
// RspUploadFileWithNoReqIdVerifier no reqid verification for a request message from gateway pp
func RspUploadFileWithNoReqIdVerifier(ctx context.Context, msgType header.MsgType, target interface{}) error {
msgBuf := core.MessageFromContext(ctx)
if err := proto.Unmarshal(msgBuf.MSGBody, target.(proto.Message)); err != nil {
return errors.Wrap(err, "protobuf Unmarshal error")
}
// other types carrying a RspUploadFile
field := reflect.ValueOf(target).Elem().FieldByName("RspUploadFile")
if field.IsValid() {
return verifyRspUploadFile(field.Interface().(*protos.RspUploadFile))
} else {
return errors.New("field of RspUploadFile is not found in the message")
}
}
func verifyRspBackupStatus(msg *protos.RspBackupStatus) error {
if msg == nil {
return errors.New("RspBackupStatus msg is empty")
}
if msg.SpP2PAddress == "" || msg.NodeSign == nil {
return errors.New("key information is missing")
}
spP2pPubkey, err := requests.GetSpPubkey(msg.SpP2PAddress)
if err != nil {
return errors.Wrap(err, "failed to get sp's pubkey, ")
}
if !fwtypes.VerifyP2pAddrBytes(spP2pPubkey.Bytes(), msg.SpP2PAddress) {
return errors.Wrap(err, "failed to verify p2p address, ")
}
nodeSign := msg.NodeSign
msg.NodeSign = nil
msgBytes, err := proto.Marshal(msg)
if err != nil {
return errors.New("failed to encoding sp's sign message")
}
msgSignBytes := fwcrypto.CalcHashBytes(msgBytes)
if !fwtypes.VerifyP2pSignBytes(spP2pPubkey.Bytes(), nodeSign, msgSignBytes) {
return errors.New("failed verifying sp's signature")
}
return nil
}
// RspBackupStatusVerifier task level verifier for all messages carrying RspBackupStatus in a backup task
func RspBackupStatusVerifier(ctx context.Context, msgType header.MsgType, target interface{}) error {
err := verifyReqId(ctx, msgType.Id)
if err != nil {
return err
}
msgBuf := core.MessageFromContext(ctx)
if err := proto.Unmarshal(msgBuf.MSGBody, target.(proto.Message)); err != nil {
return errors.Wrap(err, "protobuf Unmarshal error")
}
// RspBackupStatus itself
if reflect.TypeOf(target) == reflect.TypeOf(&protos.RspBackupStatus{}) {
return verifyRspBackupStatus(target.(*protos.RspBackupStatus))
} else {
// other types carrying a RspBackupStatus
field := reflect.ValueOf(target).Elem().FieldByName("RspBackupFile")
if field.IsValid() {
return verifyRspBackupStatus(field.Interface().(*protos.RspBackupStatus))
} else {
return errors.New("field of RspBackupFile is not found in the message")
}
}
}
// RspBackupStatusWithNoReqIdVerifier no reqid verification for a request message from gateway pp
func RspBackupStatusWithNoReqIdVerifier(ctx context.Context, msgType header.MsgType, target interface{}) error {
msgBuf := core.MessageFromContext(ctx)
if err := proto.Unmarshal(msgBuf.MSGBody, target.(proto.Message)); err != nil {
return errors.Wrap(err, "protobuf Unmarshal error")
}
// other types carrying a RspBackupStatus
field := reflect.ValueOf(target).Elem().FieldByName("RspBackupFile")
if field.IsValid() {
return verifyRspBackupStatus(field.Interface().(*protos.RspBackupStatus))
} else {
return errors.New("field of RspBackupFile is not found in the message")
}
}
func verifyNoticeFileSliceBackup(msg *protos.NoticeFileSliceBackup) error {
if msg == nil {
return errors.New("NoticeFileSliceBackup msg is empty")
}
if msg.SpP2PAddress == "" || msg.NodeSign == nil {
return errors.New("key information is missing")
}
spP2pPubkey, err := requests.GetSpPubkey(msg.SpP2PAddress)
if err != nil {
return errors.Wrap(err, "failed to get sp's pubkey, ")
}
if !fwtypes.VerifyP2pAddrBytes(spP2pPubkey.Bytes(), msg.SpP2PAddress) {
return errors.Wrap(err, "failed to verify p2p address, ")
}
nodeSign := msg.NodeSign
msg.NodeSign = nil
msgBytes, err := proto.Marshal(msg)
if err != nil {
return errors.New("failed to encoding sp's sign message")
}
signBytes := fwcrypto.CalcHashBytes(msgBytes)
if !fwtypes.VerifyP2pSignBytes(spP2pPubkey.Bytes(), nodeSign, signBytes) {
return errors.New("failed verifying sp's signature")
}
return nil
}
// NoticeFileSliceBackupVerifier task level verifier for all messages carrying NoticeFileSliceBackup in a transfer task
func NoticeFileSliceBackupVerifier(ctx context.Context, msgType header.MsgType, target interface{}) error {
msgBuf := core.MessageFromContext(ctx)
if err := proto.Unmarshal(msgBuf.MSGBody, target.(proto.Message)); err != nil {
return errors.Wrap(err, "protobuf Unmarshal error")
}
// NoticeFileSliceBackup itself
if reflect.TypeOf(target) == reflect.TypeOf(&protos.NoticeFileSliceBackup{}) {
return verifyNoticeFileSliceBackup(target.(*protos.NoticeFileSliceBackup))
} else {
// other types carrying a NoticeFileSliceBackup
field := reflect.ValueOf(target).Elem().FieldByName("NoticeFileSliceBackup")
if field.IsValid() {
return verifyNoticeFileSliceBackup(field.Interface().(*protos.NoticeFileSliceBackup))
} else {
return errors.New("field of NoticeFileSliceBackup is not found in the message")
}
}
}
func verifyRspFileStorageInfo(msg *protos.RspFileStorageInfo) error {
utils.DebugLog("verifyRspFileStorageInfo")
if msg == nil {
return errors.New("RspFileStorageInfo msg is empty")
}
if msg.SpP2PAddress == "" || msg.NodeSign == nil {
return errors.New("key information is missing")
}
spP2pPubkey, err := requests.GetSpPubkey(msg.SpP2PAddress)
if err != nil {
return errors.Wrap(err, "failed to get sp's pubkey, ")
}
if !fwtypes.VerifyP2pAddrBytes(spP2pPubkey.Bytes(), msg.SpP2PAddress) {
return errors.Wrap(err, "failed to verify p2p address, ")
}
nodeSign := msg.NodeSign
msg.NodeSign = nil
msg.ReqId = ""
msgBytes, err := proto.Marshal(msg)
if err != nil {
return errors.New("failed to encoding sp's sign message")
}
msgSignBytes := fwcrypto.CalcHashBytes(msgBytes)
if !fwtypes.VerifyP2pSignBytes(spP2pPubkey.Bytes(), nodeSign, msgSignBytes) {
return errors.New("failed verifying sp's signature")
}
return nil
}
// RspFileStorageInfoVerifier task level verifier for all messages carrying RspFileStorageInfo in a download task
func RspFileStorageInfoVerifier(ctx context.Context, msgType header.MsgType, target interface{}) error {
err := verifyReqId(ctx, msgType.Id)
if err != nil {
return err
}
msgBuf := core.MessageFromContext(ctx)
if err := proto.Unmarshal(msgBuf.MSGBody, target.(proto.Message)); err != nil {
return errors.Wrap(err, "protobuf Unmarshal error")
}
// RspUploadFile itself
if reflect.TypeOf(target) == reflect.TypeOf(&protos.RspFileStorageInfo{}) {
// from sp, verify the p2p address
err := verifySpP2pAddress(ctx, msgType.Name)
if err != nil {
return err
}
return verifyRspFileStorageInfo(target.(*protos.RspFileStorageInfo))
} else {
// other types carrying a RspUploadFile
field := reflect.ValueOf(target).Elem().FieldByName("RspFileStorageInfo")
if field.IsValid() {
return verifyRspFileStorageInfo(field.Interface().(*protos.RspFileStorageInfo))
} else {
return errors.New("field of RspUploadFile is not found in the message")
}
}
}
// RspFileStorageInfoWithNoReqIdVerifier no reqid verification for a request message from gateway pp
func RspFileStorageInfoWithNoReqIdVerifier(ctx context.Context, msgType header.MsgType, target interface{}) error {
msgBuf := core.MessageFromContext(ctx)
if err := proto.Unmarshal(msgBuf.MSGBody, target.(proto.Message)); err != nil {
return errors.Wrap(err, "protobuf Unmarshal error")
}
// other types carrying a RspUploadFile
field := reflect.ValueOf(target).Elem().FieldByName("RspFileStorageInfo")
if field.IsValid() {
return verifyRspFileStorageInfo(field.Interface().(*protos.RspFileStorageInfo))
} else {
return errors.New("field of RspFileStorageInfo is not found in the message")
}
}
func verifySpP2pAddress(ctx context.Context, cmd string) error {
p2pAddress := core.GetSrcP2pAddrFromContext(ctx)
if _, ok := setting.SPMap.Load(p2pAddress); !ok {
return errors.New(fmt.Sprintf("Source p2p address(%s) in a (%s) type message is not in the SP list", p2pAddress, cmd))
}
return nil
}
func verifyReqId(ctx context.Context, msgTypeId uint8) error {
_, found := p2pserver.GetP2pServer(ctx).LoadRequestInfo(requests.GetReqIdFromMessage(ctx), msgTypeId)
if !found {
return errors.New("no previous request for this rsp found")
}
return nil
}
func PpRspVerifier(ctx context.Context, msgType header.MsgType, target interface{}) error {
return verifyReqId(ctx, msgType.Id)
}
func SpRspVerifier(ctx context.Context, msgType header.MsgType, target interface{}) error {
if err := verifySpP2pAddress(ctx, msgType.Name); err != nil {
return err
}
return verifyReqId(ctx, msgType.Id)
}
func SpAddressVerifier(ctx context.Context, msgType header.MsgType, target interface{}) error {
return verifySpP2pAddress(ctx, msgType.Name)
}