awl/main.go
Sam Therapy 21920e6b39
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make warn error better
Signed-off-by: Sam Therapy <sam@samtherapy.net>
2022-07-25 00:27:42 +02:00

130 lines
2.8 KiB
Go

// SPDX-License-Identifier: BSD-3-Clause
package main
import (
"encoding/json"
"encoding/xml"
"errors"
"fmt"
"os"
"strconv"
"strings"
"time"
"git.froth.zone/sam/awl/cli"
"git.froth.zone/sam/awl/internal/helpers"
"git.froth.zone/sam/awl/query"
"gopkg.in/yaml.v2"
)
var version = "DEV"
func main() {
opts, err := cli.ParseCLI(version)
if err != nil {
// TODO: Make not ew
if errors.Is(err, cli.ErrNotError) || strings.Contains(err.Error(), "help requested") {
os.Exit(0)
}
opts.Logger.Error(err)
os.Exit(1)
}
var resp helpers.Response
// Retry queries if a query fails
for i := 0; i < opts.Request.Retries; i++ {
resp, err = query.CreateQuery(opts)
if err == nil {
break
} else {
opts.Logger.Warn("Retrying request, error", err)
}
}
// Query failed, make it fail
if err != nil {
opts.Logger.Error(err)
os.Exit(9)
}
switch {
case opts.JSON:
opts.Logger.Info("Printing as JSON")
json, err := json.MarshalIndent(resp.DNS, "", " ")
if err != nil {
opts.Logger.Error(err)
os.Exit(10)
}
fmt.Println(string(json))
case opts.XML:
opts.Logger.Info("Printing as XML")
xml, err := xml.MarshalIndent(resp.DNS, "", " ")
if err != nil {
opts.Logger.Error(err)
os.Exit(10)
}
fmt.Println(string(xml))
case opts.YAML:
opts.Logger.Info("Printing as YAML")
yaml, err := yaml.Marshal(resp.DNS)
if err != nil {
opts.Logger.Error(err)
os.Exit(10)
}
fmt.Println(string(yaml))
default:
if !opts.Short {
// Print everything
if !opts.Display.Question {
resp.DNS.Question = nil
opts.Logger.Info("Disabled question display")
}
if !opts.Display.Answer {
resp.DNS.Answer = nil
opts.Logger.Info("Disabled answer display")
}
if !opts.Display.Authority {
resp.DNS.Ns = nil
opts.Logger.Info("Disabled authority display")
}
if !opts.Display.Additional {
resp.DNS.Extra = nil
opts.Logger.Info("Disabled additional display")
}
fmt.Println(resp.DNS)
if opts.Display.Statistics {
fmt.Println(";; Query time:", resp.RTT)
// Add extra information to server string
var extra string
switch {
case opts.TCP:
extra = ":" + strconv.Itoa(opts.Port) + " (TCP)"
case opts.TLS:
extra = ":" + strconv.Itoa(opts.Port) + " (TLS)"
case opts.HTTPS, opts.DNSCrypt:
extra = ""
case opts.QUIC:
extra = ":" + strconv.Itoa(opts.Port) + " (QUIC)"
default:
extra = ":" + strconv.Itoa(opts.Port) + " (UDP)"
}
fmt.Println(";; SERVER:", opts.Request.Server+extra)
fmt.Println(";; WHEN:", time.Now().Format(time.RFC1123Z))
fmt.Println(";; MSG SIZE rcvd:", resp.DNS.Len())
}
} else {
// Print just the responses, nothing else
for _, res := range resp.DNS.Answer {
temp := strings.Split(res.String(), "\t")
fmt.Println(temp[len(temp)-1])
}
}
}
}