gaspersic/go-ethereum
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This commit is contained in:
zsfelfoldi
2015-04-06 08:01:36 +02:00
committed by zelig
parent e2d333d209
commit 94489b2269
4 changed files with 82 additions and 53 deletions
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11
common/resolver/resolver.go
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@ -39,7 +39,7 @@ func New(eth Backend, uhca, nrca string) *Resolver {
func (self *Resolver) NameToContentHash(name string) (chash common.Hash, err error) {
// look up in nameReg
key := storageAddress(1, common.Hex2BytesFixed(name, 32))
hash := self.backend.StorageAt(self.nameRegContractAddress, key)
hash := self.backend.StorageAt("0x"+self.nameRegContractAddress, key)
copy(chash[:], common.Hex2Bytes(hash))
return
}
@ -47,7 +47,8 @@ func (self *Resolver) NameToContentHash(name string) (chash common.Hash, err err
func (self *Resolver) ContentHashToUrl(chash common.Hash) (uri string, err error) {
// look up in nameReg
key := storageAddress(2, chash[:])
uri = string(common.Hex2Bytes(self.backend.StorageAt(self.urlHintContractAddress, key)))
hex := self.backend.StorageAt("0x"+self.urlHintContractAddress, key)
uri = string(common.Hex2Bytes(hex[2:]))
l := len(uri)
for (l > 0) && (uri[l-1] == 0) {
l--
@ -72,7 +73,7 @@ func (self *Resolver) NameToUrl(name string) (uri string, hash common.Hash, err
func storageAddress(varidx uint32, key []byte) string {
data := make([]byte, 64)
binary.BigEndian.PutUint32(data[28:32], varidx)
copy(data[32:64], key[0:32])
return common.Bytes2Hex(crypto.Sha3(data))
binary.BigEndian.PutUint32(data[60:64], varidx)
copy(data[0:32], key[0:32])
return "0x" + common.Bytes2Hex(crypto.Sha3(data))
}