]> Cypherpunks.ru repositories - nncp.git/blob - src/cypherpunks.ru/nncp/cmd/nncp-freq/main.go
Ability to override Via configuration option
[nncp.git] / 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) 2016-2018 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         "strings"
29
30         "cypherpunks.ru/nncp"
31 )
32
33 func usage() {
34         fmt.Fprintf(os.Stderr, nncp.UsageHeader())
35         fmt.Fprintln(os.Stderr, "nncp-freq -- send file request\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.Int("nice", nncp.DefaultNiceFreq, "Outbound packet niceness")
44                 minSize     = flag.Uint64("minsize", 0, "Minimal required resulting packet size, in KiB")
45                 viaOverride = flag.String("via", "", "Override Via path to destination node")
46                 spoolPath   = flag.String("spool", "", "Override path to spool")
47                 logPath     = flag.String("log", "", "Override path to logfile")
48                 quiet       = flag.Bool("quiet", false, "Print only errors")
49                 debug       = flag.Bool("debug", false, "Print debug messages")
50                 version     = flag.Bool("version", false, "Print version information")
51                 warranty    = flag.Bool("warranty", false, "Print warranty information")
52         )
53         flag.Usage = usage
54         flag.Parse()
55         if *warranty {
56                 fmt.Println(nncp.Warranty)
57                 return
58         }
59         if *version {
60                 fmt.Println(nncp.VersionGet())
61                 return
62         }
63         if flag.NArg() == 0 {
64                 usage()
65                 os.Exit(1)
66         }
67         if *niceRaw < 1 || *niceRaw > 255 {
68                 log.Fatalln("-nice must be between 1 and 255")
69         }
70         nice := uint8(*niceRaw)
71
72         ctx, err := nncp.CtxFromCmdline(*cfgPath, *spoolPath, *logPath, *quiet, *debug)
73         if err != nil {
74                 log.Fatalln("Error during initialization:", err)
75         }
76         if ctx.Self == nil {
77                 log.Fatalln("Config lacks private keys")
78         }
79
80         splitted := strings.SplitN(flag.Arg(0), ":", 2)
81         if len(splitted) != 2 {
82                 usage()
83                 os.Exit(1)
84         }
85         node, err := ctx.FindNode(splitted[0])
86         if err != nil {
87                 log.Fatalln("Invalid NODE specified:", err)
88         }
89
90         if *viaOverride != "" {
91                 vias := make([]*nncp.NodeId, 0, strings.Count(*viaOverride, ",")+1)
92                 for _, via := range strings.Split(*viaOverride, ",") {
93                         foundNodeId, err := ctx.FindNode(via)
94                         if err != nil {
95                                 log.Fatalln("Invalid Via node specified:", err)
96                         }
97                         vias = append(vias, foundNodeId.Id)
98                 }
99                 node.Via = vias
100         }
101
102         var dst string
103         if flag.NArg() == 2 {
104                 dst = flag.Arg(1)
105         } else {
106                 dst = filepath.Base(splitted[1])
107         }
108
109         if err = ctx.TxFreq(
110                 node,
111                 nice,
112                 splitted[1],
113                 dst,
114                 int64(*minSize)*1024,
115         ); err != nil {
116                 log.Fatalln(err)
117         }
118 }