src/cypherpunks.ru/nncp/cmd/nncp-cfgmin/main.go

   1 /*
   2 NNCP -- Node to Node copy, utilities for store-and-forward data exchange
   3 Copyright (C) 2016-2019 Sergey Matveev <stargrave@stargrave.org>
   4
   5 This program is free software: you can redistribute it and/or modify
   6 it under the terms of the GNU General Public License as published by
   7 the Free Software Foundation, either version 3 of the License, or
   8 (at your option) any later version.
   9
  10 This program is distributed in the hope that it will be useful,
  11 but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 GNU General Public License for more details.
  14
  15 You should have received a copy of the GNU General Public License
  16 along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17 */
  18
  19 // Stripped NNCP configuration file.
  20 package main
  21
  22 import (
  23         "flag"
  24         "fmt"
  25         "log"
  26         "os"
  27
  28         "cypherpunks.ru/nncp"
  29         "gopkg.in/yaml.v2"
  30 )
  31
  32 func usage() {
  33         fmt.Fprintf(os.Stderr, nncp.UsageHeader())
  34         fmt.Fprintf(os.Stderr, "nncp-cfgmin -- print stripped configuration\n\n")
  35         fmt.Fprintf(os.Stderr, "Usage: %s [options]\nOptions:\n", os.Args[0])
  36         flag.PrintDefaults()
  37 }
  38
  39 func main() {
  40         var (
  41                 cfgPath  = flag.String("cfg", nncp.DefaultCfgPath, "Path to configuration file")
  42                 version  = flag.Bool("version", false, "Print version information")
  43                 warranty = flag.Bool("warranty", false, "Print warranty information")
  44         )
  45         flag.Usage = usage
  46         flag.Parse()
  47         if *warranty {
  48                 fmt.Println(nncp.Warranty)
  49                 return
  50         }
  51         if *version {
  52                 fmt.Println(nncp.VersionGet())
  53                 return
  54         }
  55
  56         ctx, err := nncp.CtxFromCmdline(*cfgPath, "", "", false, false)
  57         if err != nil {
  58                 log.Fatalln("Error during initialization:", err)
  59         }
  60
  61         cfg := nncp.CfgYAML{
  62                 Spool: ctx.Spool,
  63                 Log:   ctx.LogPath,
  64                 Neigh: make(map[string]nncp.NodeYAML),
  65         }
  66         for _, node := range ctx.Neigh {
  67                 var noisePub *string
  68                 if node.NoisePub != nil {
  69                         np := nncp.ToBase32(node.NoisePub[:])
  70                         noisePub = &np
  71                 }
  72                 cfg.Neigh[node.Name] = nncp.NodeYAML{
  73                         Id:       node.Id.String(),
  74                         ExchPub:  nncp.ToBase32(node.ExchPub[:]),
  75                         SignPub:  nncp.ToBase32(node.SignPub[:]),
  76                         NoisePub: noisePub,
  77                 }
  78         }
  79         raw, err := yaml.Marshal(&cfg)
  80         if err != nil {
  81                 panic(err)
  82         }
  83         fmt.Print(string(raw))
  84 }