blocky/cmd/query.go

73 lines
1.6 KiB
Go

package cmd
import (
"bytes"
"encoding/json"
"io/ioutil"
"net/http"
"github.com/0xERR0R/blocky/api"
"github.com/0xERR0R/blocky/log"
"github.com/0xERR0R/blocky/util"
"github.com/miekg/dns"
"github.com/spf13/cobra"
)
// NewQueryCommand creates new command instance
func NewQueryCommand() *cobra.Command {
c := &cobra.Command{
Use: "query <domain>",
Args: cobra.ExactArgs(1),
Short: "performs DNS query",
Run: query,
}
c.Flags().StringP("type", "t", "A", "query type (A, AAAA, ...)")
return c
}
func query(cmd *cobra.Command, args []string) {
typeFlag, _ := cmd.Flags().GetString("type")
qType := dns.StringToType[typeFlag]
if qType == dns.TypeNone {
log.Log().Fatalf("unknown query type '%s'", typeFlag)
return
}
apiRequest := api.QueryRequest{
Query: args[0],
Type: typeFlag,
}
jsonValue, _ := json.Marshal(apiRequest)
resp, err := http.Post(apiURL(api.PathQueryPath), "application/json", bytes.NewBuffer(jsonValue))
if err != nil {
log.Log().Fatal("can't execute", err)
return
}
defer resp.Body.Close()
if resp.StatusCode != http.StatusOK {
body, _ := ioutil.ReadAll(resp.Body)
log.Log().Fatalf("NOK: %s %s", resp.Status, string(body))
return
}
var result api.QueryResult
err = json.NewDecoder(resp.Body).Decode(&result)
util.FatalOnError("can't read response: ", err)
log.Log().Infof("Query result for '%s' (%s):", apiRequest.Query, apiRequest.Type)
log.Log().Infof("\treason: %20s", result.Reason)
log.Log().Infof("\tresponse type: %20s", result.ResponseType)
log.Log().Infof("\tresponse: %20s", result.Response)
log.Log().Infof("\treturn code: %20s", result.ReturnCode)
}