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cli/server: update toNeoStorageKey key conversion for Neo 3

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Follow #1037 changes with contract IDs and update padding, the number of
value bytes is being stored now as 17th byte instead of number of zeroes.
This commit is contained in:
Roman Khimov 2020-06-23 12:16:25 +03:00
parent 0fdeafb8f7
commit fb18eda515
1 changed files with 10 additions and 13 deletions
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23
cli/server/dump.go
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@ -9,7 +9,6 @@ import (
"path/filepath"
"github.com/nspcc-dev/neo-go/pkg/core/storage"
"github.com/nspcc-dev/neo-go/pkg/util"
)
type dump []blockDump
@ -26,26 +25,24 @@ type storageOp struct {
Value string `json:"value,omitempty"`
}
// NEO has some differences of key storing.
// out format: script hash in LE + key
// neo format: script hash in BE + byte(0) + key with 0 between every 16 bytes, padded to len 16.
// NEO has some differences of key storing (that should go away post-preview2).
// ours format: contract's ID (uint32le) + key
// theirs format: contract's ID (uint32le) + key with 16 between every 16 bytes, padded to len 16.
func toNeoStorageKey(key []byte) []byte {
if len(key) < util.Uint160Size {
if len(key) < 4 {
panic("invalid key in storage")
}
var nkey []byte
for i := util.Uint160Size - 1; i >= 0; i-- {
nkey = append(nkey, key[i])
}
key = key[util.Uint160Size:]
// Prefix is a contract's ID in LE.
nkey := make([]byte, 4, len(key))
copy(nkey, key[:4])
key = key[4:]
index := 0
remain := len(key)
for remain >= 16 {
nkey = append(nkey, key[index:index+16]...)
nkey = append(nkey, 0)
nkey = append(nkey, 16)
index += 16
remain -= 16
}
@ -59,7 +56,7 @@ func toNeoStorageKey(key []byte) []byte {
nkey = append(nkey, 0)
}
nkey = append(nkey, byte(padding))
nkey = append(nkey, byte(remain))
return nkey
}