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, 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 // Send file request via NNCP.
  20 package main
  21
  22 import (
  23         "flag"
  24         "fmt"
  25         "log"
  26         "os"
  27         "path/filepath"
  28         "strconv"
  29         "strings"
  30
  31         "cypherpunks.ru/nncp"
  32 )
  33
  34 func usage() {
  35         fmt.Fprintf(os.Stderr, nncp.UsageHeader())
  36         fmt.Fprintf(os.Stderr, "nncp-freq -- send file request\n\n")
  37         fmt.Fprintf(os.Stderr, "Usage: %s [options] NODE:SRC [DST]\nOptions:\n", os.Args[0])
  38         flag.PrintDefaults()
  39 }
  40
  41 func main() {
  42         var (
  43                 cfgPath      = flag.String("cfg", nncp.DefaultCfgPath, "Path to configuration file")
  44                 niceRaw      = flag.String("nice", nncp.NicenessFmt(nncp.DefaultNiceFreq), "Outbound packet niceness")
  45                 replyNiceRaw = flag.String("replynice", strconv.Itoa(nncp.DefaultNiceFile), "Reply file packet niceness")
  46                 minSize      = flag.Uint64("minsize", 0, "Minimal required resulting packet size, in KiB")
  47                 viaOverride  = flag.String("via", "", "Override Via path to destination node")
  48                 spoolPath    = flag.String("spool", "", "Override path to spool")
  49                 logPath      = flag.String("log", "", "Override path to logfile")
  50                 quiet        = flag.Bool("quiet", false, "Print only errors")
  51                 debug        = flag.Bool("debug", false, "Print debug messages")
  52                 version      = flag.Bool("version", false, "Print version information")
  53                 warranty     = flag.Bool("warranty", false, "Print warranty information")
  54         )
  55         flag.Usage = usage
  56         flag.Parse()
  57         if *warranty {
  58                 fmt.Println(nncp.Warranty)
  59                 return
  60         }
  61         if *version {
  62                 fmt.Println(nncp.VersionGet())
  63                 return
  64         }
  65         if flag.NArg() == 0 {
  66                 usage()
  67                 os.Exit(1)
  68         }
  69         nice, err := nncp.NicenessParse(*niceRaw)
  70         if err != nil {
  71                 log.Fatalln(err)
  72         }
  73         replyNice, err := nncp.NicenessParse(*replyNiceRaw)
  74         if err != nil {
  75                 log.Fatalln(err)
  76         }
  77
  78         ctx, err := nncp.CtxFromCmdline(*cfgPath, *spoolPath, *logPath, *quiet, *debug)
  79         if err != nil {
  80                 log.Fatalln("Error during initialization:", err)
  81         }
  82         if ctx.Self == nil {
  83                 log.Fatalln("Config lacks private keys")
  84         }
  85
  86         splitted := strings.SplitN(flag.Arg(0), ":", 2)
  87         if len(splitted) != 2 {
  88                 usage()
  89                 os.Exit(1)
  90         }
  91         node, err := ctx.FindNode(splitted[0])
  92         if err != nil {
  93                 log.Fatalln("Invalid NODE specified:", err)
  94         }
  95
  96         nncp.ViaOverride(*viaOverride, ctx, node)
  97
  98         var dst string
  99         if flag.NArg() == 2 {
 100                 dst = flag.Arg(1)
 101         } else {
 102                 dst = filepath.Base(splitted[1])
 103         }
 104
 105         if err = ctx.TxFreq(
 106                 node,
 107                 nice,
 108                 replyNice,
 109                 splitted[1],
 110                 dst,
 111                 int64(*minSize)*1024,
 112         ); err != nil {
 113                 log.Fatalln(err)
 114         }
 115 }