4661f65975
There is a need to check if public key in the RPC response matches the public key of the related storage node declared in network map. Define `ErrWrongPublicKey` error. Implement RPC response handler's constructor `AssertKeyResponseCallback` which checks public key. Construct handler and pass it to client's option `WithResponseInfoHandler`. Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
56 lines
1.5 KiB
Go
56 lines
1.5 KiB
Go
package client
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import (
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"bytes"
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"fmt"
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"github.com/nspcc-dev/neofs-api-go/pkg/client"
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"github.com/nspcc-dev/neofs-node/pkg/network"
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)
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func nodeInfoFromKeyAddr(dst *NodeInfo, k []byte, a network.AddressGroup) {
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dst.SetPublicKey(k)
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dst.SetAddressGroup(a)
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}
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// NodeInfoFromRawNetmapElement fills NodeInfo structure from the interface of raw netmap member's descriptor.
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//
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// Args must not be nil.
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func NodeInfoFromRawNetmapElement(dst *NodeInfo, info interface {
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PublicKey() []byte
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IterateAddresses(func(string) bool)
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NumberOfAddresses() int
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}) error {
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var a network.AddressGroup
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err := a.FromIterator(info)
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if err != nil {
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return fmt.Errorf("parse network address: %w", err)
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}
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nodeInfoFromKeyAddr(dst, info.PublicKey(), a)
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return nil
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}
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// NodeInfoFromNetmapElement fills NodeInfo structure from the interface of parsed netmap member's descriptor.
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//
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// Args must not be nil.
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func NodeInfoFromNetmapElement(dst *NodeInfo, info interface {
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PublicKey() []byte
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Addresses() network.AddressGroup
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}) {
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nodeInfoFromKeyAddr(dst, info.PublicKey(), info.Addresses())
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}
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// AssertKeyResponseCallback returns client response callback which checks if the response was signed by expected key.
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// Returns ErrWrongPublicKey in case of key mismatch.
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func AssertKeyResponseCallback(expectedKey []byte) func(client.ResponseMetaInfo) error {
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return func(info client.ResponseMetaInfo) error {
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if !bytes.Equal(info.ResponderKey(), expectedKey) {
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return ErrWrongPublicKey
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}
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return nil
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}
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}
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