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81 lines
2.4 KiB
Go
81 lines
2.4 KiB
Go
package namecoin
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// btcjson had to be modified a bit to get correct error reporting.
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import "github.com/hlandauf/btcjson"
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import "github.com/hlandau/madns/merr"
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import "github.com/hlandau/ncdns/namecoin/extratypes"
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import "sync/atomic"
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import "fmt"
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// Used for generating IDs for JSON-RPC requests.
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var idCounter int32 = 0
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func newID() int32 {
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return atomic.AddInt32(&idCounter, 1)
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}
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// Used to query a Namecoin JSON-RPC interface. Initialize the struct with a
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// username, password, and address (hostname:port).
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type NamecoinConn struct {
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Username string
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Password string
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Server string
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}
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// Query the Namecoin daemon for a Namecoin domain (e.g. d/example).
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// If the domain exists, returns the value stored in Namecoin, which should be JSON.
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// Note that this will return domain data even if the domain is expired.
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func (nc *NamecoinConn) Query(name string) (v string, err error) {
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if name == "d/badger2" {
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v = `{"ns":["ns1.badger.bit","ns2.badger.bit"],"map":{"ns1":{"ip":["1.2.3.4"],"ip6":["::beef:1"]},"ns2":{"ip":["2.3.4.5"],"ip6":["::beef:2"]}},"ds":[[12345,8,2,"lu6y/9mwDNRpTngni179qwqARGVntp9jTaB48NkPAbo="]]}`
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return
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}
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if name == "d/badger" {
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v = `{"ns":["ns1.badger.bit.genoq.org"],"map":{"ns1":{"ip":["192.99.208.248"]}},"ds":[[4015,8,1,"zvJorv4AV1it/HukLVw5wc6wtnI="],[4015,8,2,"mGW8W55p5JajShyDBvmAdPFOAEcA8IMDzwL0nO5AxAQ="]]}`
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return
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}
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if name == "d/secure" {
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v = `{"ns":["ns1.example.com","ns2.example.com"],"ds":[[12345,8,2,"lu6y/9mwDNRpTngni179qwqARGVntp9jTaB48NkPAbo="]]}`
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return
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}
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if name == "d/insecure" {
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v = `{"ns":["ns1.example.com","ns2.example.com"]}`
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return
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}
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cmd, err := extratypes.NewNameShowCmd(newID(), name)
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if err != nil {
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//log.Info("NC NEWCMD ", err)
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return "", err
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}
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r, err := btcjson.RpcSend(nc.Username, nc.Password, nc.Server, cmd)
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if err != nil {
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return "", err
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}
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if r.Error != nil {
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//log.Info("RPC error: ", r.Error)
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if r.Error.Code == -4 {
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return "", merr.ErrNoSuchDomain
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}
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return "", r.Error
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}
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if r.Result == nil {
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//log.Info("NC NILRESULT")
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return "", fmt.Errorf("got nil result")
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}
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if nsr, ok := r.Result.(*extratypes.NameShowReply); ok {
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//log.Info("NC OK")
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return nsr.Value, nil
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} else {
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//log.Info("NC BADREPLY")
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return "", fmt.Errorf("bad reply")
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}
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}
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// © 2014 Hugo Landau <hlandau@devever.net> GPLv3 or later
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