2019-07-10 20:59:43 +00:00
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/*
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Copyright (c) 2019 @crosbymichael
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Permission is hereby granted, free of charge, to any person
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obtaining a copy of this software and associated documentation
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files (the "Software"), to deal in the Software without
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restriction, including without limitation the rights to use, copy,
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modify, merge, publish, distribute, sublicense, and/or sell copies
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of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be
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included in all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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EXPRESS OR IMPLIED,
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INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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HOLDERS BE LIABLE FOR ANY CLAIM,
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DAMAGES OR OTHER LIABILITY,
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WHETHER IN AN ACTION OF CONTRACT,
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TORT OR OTHERWISE,
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ARISING FROM, OUT OF OR IN CONNECTION WITH
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THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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package v1
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import (
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"io"
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"strings"
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"text/template"
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"github.com/pkg/errors"
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)
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const confFmt = `[Interface]
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PrivateKey = {{.PrivateKey}}
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2019-07-11 11:46:36 +00:00
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{{if .ListenPort}}ListenPort = {{.ListenPort}}{{end}}
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2019-07-10 20:59:43 +00:00
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Address = {{.Address}}
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{{if .DNS }}DNS = {{.DNS}}{{end}}
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{{if .Masquerade}}
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PostUp = iptables -A FORWARD -i %i -j ACCEPT; iptables -t nat -A POSTROUTING -o {{.Masquerade.Interface}} -j MASQUERADE
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PostDown = iptables -D FORWARD -i %i -j ACCEPT; iptables -t nat -D POSTROUTING -o {{.Masquerade.Interface}} -j MASQUERADE
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{{end}}
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{{range $peer := .Peers -}}
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2019-07-10 21:35:46 +00:00
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# {{$peer.ID}}
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2019-07-10 20:59:43 +00:00
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[Peer]
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PublicKey = {{$peer.PublicKey}}
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AllowedIPs = {{joinIPs $peer.AllowedIPs}}
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{{if .Endpoint}}Endpoint = {{.Endpoint}}{{end}}
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{{if .PersistentKeepalive}}PersistentKeepalive = {{.PersistentKeepalive}}{{end}}
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{{end}}
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`
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func (t *Tunnel) Render(w io.Writer) error {
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tmp, err := template.New("wireguard").Funcs(template.FuncMap{
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"joinIPs": joinIPs,
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}).Parse(confFmt)
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if err != nil {
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return errors.Wrap(err, "parse template")
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}
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if err := tmp.Execute(w, t); err != nil {
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return errors.Wrap(err, "execute template")
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}
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return nil
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}
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func joinIPs(ips []string) string {
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return strings.Join(ips, ", ")
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}
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