awl/cli/dig.go
Sam 80648e08f6
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continuous-integration/drone/push Build is passing
(refactor) Draw the rest of the owl (#38)
Reviewed-on: #38
2022-07-26 00:32:31 +00:00

117 lines
2.7 KiB
Go

// SPDX-License-Identifier: BSD-3-Clause
package cli
import (
"fmt"
"strconv"
"strings"
"time"
)
// Parse dig-like commands and set the options as such.
func ParseDig(arg string, opts *Options) error {
// returns true if the flag starts with a no
isNo := !strings.HasPrefix(arg, "no")
opts.Logger.Info("Setting", arg)
switch arg {
// Set DNS query flags
case "aa", "aaflag", "aaonly", "noaa", "noaaflag", "noaaonly":
opts.AA = isNo
case "ad", "adflag", "noad", "noadflag":
opts.AD = isNo
case "cd", "cdflag", "nocd", "nocdflag":
opts.CD = isNo
case "qr", "qrflag", "noqr", "noqrflag":
opts.QR = isNo
case "ra", "raflag", "nora", "noraflag":
opts.RA = isNo
case "rd", "rdflag", "recurse", "nord", "nordflag", "norecurse":
opts.RD = isNo
case "tc", "tcflag", "notc", "notcflag":
opts.TC = isNo
case "z", "zflag", "noz", "nozflag":
opts.Z = isNo
// End DNS query flags
// DNS-over-X
case "dnssec", "nodnssec":
opts.DNSSEC = isNo
case "tcp", "vc", "notcp", "novc":
opts.TCP = isNo
case "ignore", "noignore":
opts.Truncate = isNo
case "tls", "notls":
opts.TLS = isNo
case "dnscrypt", "nodnscrypt":
opts.DNSCrypt = isNo
case "https", "nohttps":
opts.HTTPS = isNo
case "quic", "noquic":
opts.QUIC = isNo
// End DNS-over-X
// Formatting
case "short", "noshort":
opts.Short = isNo
case "json", "nojson":
opts.JSON = isNo
case "xml", "noxml":
opts.XML = isNo
case "yaml", "noyaml":
opts.YAML = isNo
// End formatting
// Output
// TODO: get this to work
// case "comments", "nocomments":
// opts.Display.Comments = isNo
case "question", "noquestion":
opts.Display.Question = isNo
case "answer", "noanswer":
opts.Display.Answer = isNo
case "authority", "noauthority":
opts.Display.Authority = isNo
case "additional", "noadditional":
opts.Display.Additional = isNo
case "stats", "nostats":
opts.Display.Statistics = isNo
case "all", "noall":
opts.Display.Question = isNo
opts.Display.Answer = isNo
opts.Display.Authority = isNo
opts.Display.Additional = isNo
opts.Display.Statistics = isNo
default:
// Recursive switch statements WOO
switch {
case strings.HasPrefix(arg, "timeout"):
timeout, err := strconv.Atoi(strings.Split(arg, "=")[1])
if err != nil {
return fmt.Errorf("dig: Invalid timeout value")
}
opts.Request.Timeout = time.Duration(timeout)
case strings.HasPrefix(arg, "retry"), strings.HasPrefix(arg, "tries"):
tries, err := strconv.Atoi(strings.Split(arg, "=")[1])
if err != nil {
return fmt.Errorf("dig: Invalid retry value")
}
if strings.HasPrefix(arg, "tries") {
tries++
}
opts.Request.Retries = tries
default:
return fmt.Errorf("dig: unknown flag %s given", arg)
}
}
return nil
}