src/cypherpunks.ru/nncp/cmd/nncp-freq/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, version 3 of the License.
   8
   9 This program is distributed in the hope that it will be useful,
  10 but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 GNU General Public License for more details.
  13
  14 You should have received a copy of the GNU General Public License
  15 along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16 */
  17
  18 // Send file request via NNCP.
  19 package main
  20
  21 import (
  22         "flag"
  23         "fmt"
  24         "log"
  25         "os"
  26         "path/filepath"
  27         "strconv"
  28         "strings"
  29
  30         "cypherpunks.ru/nncp"
  31 )
  32
  33 func usage() {
  34         fmt.Fprintf(os.Stderr, nncp.UsageHeader())
  35         fmt.Fprintf(os.Stderr, "nncp-freq -- send file request\n\n")
  36         fmt.Fprintf(os.Stderr, "Usage: %s [options] NODE:SRC [DST]\nOptions:\n", os.Args[0])
  37         flag.PrintDefaults()
  38 }
  39
  40 func main() {
  41         var (
  42                 cfgPath      = flag.String("cfg", nncp.DefaultCfgPath, "Path to configuration file")
  43                 niceRaw      = flag.String("nice", nncp.NicenessFmt(nncp.DefaultNiceFreq), "Outbound packet niceness")
  44                 replyNiceRaw = flag.String("replynice", strconv.Itoa(nncp.DefaultNiceFile), "Reply file packet niceness")
  45                 minSize      = flag.Uint64("minsize", 0, "Minimal required resulting packet size, in KiB")
  46                 viaOverride  = flag.String("via", "", "Override Via path to destination node")
  47                 spoolPath    = flag.String("spool", "", "Override path to spool")
  48                 logPath      = flag.String("log", "", "Override path to logfile")
  49                 quiet        = flag.Bool("quiet", false, "Print only errors")
  50                 debug        = flag.Bool("debug", false, "Print debug messages")
  51                 version      = flag.Bool("version", false, "Print version information")
  52                 warranty     = flag.Bool("warranty", false, "Print warranty information")
  53         )
  54         flag.Usage = usage
  55         flag.Parse()
  56         if *warranty {
  57                 fmt.Println(nncp.Warranty)
  58                 return
  59         }
  60         if *version {
  61                 fmt.Println(nncp.VersionGet())
  62                 return
  63         }
  64         if flag.NArg() == 0 {
  65                 usage()
  66                 os.Exit(1)
  67         }
  68         nice, err := nncp.NicenessParse(*niceRaw)
  69         if err != nil {
  70                 log.Fatalln(err)
  71         }
  72         replyNice, err := nncp.NicenessParse(*replyNiceRaw)
  73         if err != nil {
  74                 log.Fatalln(err)
  75         }
  76
  77         ctx, err := nncp.CtxFromCmdline(*cfgPath, *spoolPath, *logPath, *quiet, *debug)
  78         if err != nil {
  79                 log.Fatalln("Error during initialization:", err)
  80         }
  81         if ctx.Self == nil {
  82                 log.Fatalln("Config lacks private keys")
  83         }
  84
  85         splitted := strings.SplitN(flag.Arg(0), ":", 2)
  86         if len(splitted) != 2 {
  87                 usage()
  88                 os.Exit(1)
  89         }
  90         node, err := ctx.FindNode(splitted[0])
  91         if err != nil {
  92                 log.Fatalln("Invalid NODE specified:", err)
  93         }
  94
  95         nncp.ViaOverride(*viaOverride, ctx, node)
  96
  97         var dst string
  98         if flag.NArg() == 2 {
  99                 dst = flag.Arg(1)
 100         } else {
 101                 dst = filepath.Base(splitted[1])
 102         }
 103
 104         if err = ctx.TxFreq(
 105                 node,
 106                 nice,
 107                 replyNice,
 108                 splitted[1],
 109                 dst,
 110                 int64(*minSize)*1024,
 111         ); err != nil {
 112                 log.Fatalln(err)
 113         }
 114 }