mirror of
https://github.com/ipfs/kubo.git
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92d08db7a5
- updated go-ctxgroup and goprocess ctxgroup: AddChildGroup was changed to AddChild. Used in two files: - p2p/net/mock/mock_net.go - routing/dht/dht.go - updated context from hg repo to git prev. commit in hg was ad01a6fcc8a19d3a4478c836895ffe883bd2ceab. (context: make parentCancelCtx iterative) represents commit 84f8955a887232b6308d79c68b8db44f64df455c in git repo - updated context to master (b6fdb7d8a4ccefede406f8fe0f017fb58265054c) Aaron Jacobs (2): net/context: Don't accept a context in the DoSomethingSlow example. context: Be clear that users must cancel the result of WithCancel. Andrew Gerrand (1): go.net: use golang.org/x/... import paths Bryan C. Mills (1): net/context: Don't leak goroutines in Done example. Damien Neil (1): context: fix removal of cancelled timer contexts from parent David Symonds (2): context: Fix WithValue example code. net: add import comments. Sameer Ajmani (1): context: fix TestAllocs to account for ints in interfaces
50 lines
1.2 KiB
Go
50 lines
1.2 KiB
Go
package namesys
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import (
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"net"
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b58 "github.com/jbenet/go-ipfs/Godeps/_workspace/src/github.com/jbenet/go-base58"
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isd "github.com/jbenet/go-ipfs/Godeps/_workspace/src/github.com/jbenet/go-is-domain"
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mh "github.com/jbenet/go-ipfs/Godeps/_workspace/src/github.com/jbenet/go-multihash"
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context "github.com/jbenet/go-ipfs/Godeps/_workspace/src/golang.org/x/net/context"
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u "github.com/jbenet/go-ipfs/util"
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)
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// DNSResolver implements a Resolver on DNS domains
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type DNSResolver struct {
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// TODO: maybe some sort of caching?
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// cache would need a timeout
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}
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// CanResolve implements Resolver
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func (r *DNSResolver) CanResolve(name string) bool {
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return isd.IsDomain(name)
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}
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// Resolve implements Resolver
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// TXT records for a given domain name should contain a b58
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// encoded multihash.
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func (r *DNSResolver) Resolve(ctx context.Context, name string) (u.Key, error) {
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log.Info("DNSResolver resolving %v", name)
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txt, err := net.LookupTXT(name)
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if err != nil {
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return "", err
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}
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for _, t := range txt {
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chk := b58.Decode(t)
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if len(chk) == 0 {
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continue
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}
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_, err := mh.Cast(chk)
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if err != nil {
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continue
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}
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return u.Key(chk), nil
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}
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return "", ErrResolveFailed
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}
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