46 lines
986 B
Go
46 lines
986 B
Go
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package resolver
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import (
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"fmt"
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"net/url"
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/xeth"
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)
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/*
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Resolver implements the Ethereum DNS mapping
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NameReg : Domain Name (or Code hash of Contract) -> Content Hash
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UrlHint : Content Hash -> Url Hint
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*/
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const (
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urlHintContractAddress = "urlhint"
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nameRegContractAddress = "nameReg"
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)
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type Resolver struct {
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xeth *xeth.XEth
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}
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func (self *Resolver) NameToContentHash(name string) (hash common.Hash, err error) {
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// look up in nameReg
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copy(hash[:], []byte(name)[:32])
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return
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}
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func (self *Resolver) ContentHashToUrl(hash common.Hash) (uri *url.URL, err error) {
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// look up in nameReg
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rawurl := fmt.Sprintf("bzz://%x/my/path/mycontract.sud", hash[:])
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// mime type?
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return url.Parse(rawurl)
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}
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func (self *Resolver) NameToUrl(name string) (uri *url.URL, err error) {
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// look up in urlHint
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hash, err := self.NameToContentHash(name)
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if err != nil {
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return
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}
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return self.ContentHashToUrl(hash)
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}
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