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PresharedKey is now only included if set (#141)

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PresharedKey is now only set in the server and client config if the key
is set and not null (or empty).

I added this feature because I was importing old config files from
clients that did not have a preshared key set. Clients can be created
without preshared keys when editing db/client/ files manually. If the
field is not set, wireguard-ui creates invalid configs by producing:

PresharedKey =

This patch remvoes this behavior and just skips the preshared key if not
set.

Co-authored-by: Khanh Ngo <k@ndk.name>
This commit is contained in:
Matt3o12 2022-01-29 09:11:50 +01:00 • committed by GitHub
parent af62be378f
commit 71ede02e1c
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2 changed files with 23 additions and 19 deletions
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4
templates/wg.conf
View file

@ -19,6 +19,6 @@ PostDown = {{ .serverConfig.Interface.PostDown }}
# Update at: {{ .Client.UpdatedAt }}
[Peer]
PublicKey = {{ .Client.PublicKey }}
PresharedKey = {{ .Client.PresharedKey }}
AllowedIPs = {{$first :=true}}{{range .Client.AllocatedIPs }}{{if $first}}{{$first = false}}{{else}},{{end}}{{.}}{{end}}{{range .Client.ExtraAllowedIPs }},{{.}}{{end}}
{{if .Client.PresharedKey }}PresharedKey = {{ .Client.PresharedKey }}
{{end}}AllowedIPs = {{$first :=true}}{{range .Client.AllocatedIPs }}{{if $first}}{{$first = false}}{{else}},{{end}}{{.}}{{end}}{{range .Client.ExtraAllowedIPs }},{{.}}{{end}}
{{end}}{{end}}

38
util/util.go
View file

@ -21,17 +21,21 @@ import (
// BuildClientConfig to create wireguard client config string
func BuildClientConfig(client model.Client, server model.Server, setting model.GlobalSetting) string {
// Interface section
clientAddress := fmt.Sprintf("Address = %s", strings.Join(client.AllocatedIPs, ","))
clientPrivateKey := fmt.Sprintf("PrivateKey = %s", client.PrivateKey)
clientAddress := fmt.Sprintf("Address = %s\n", strings.Join(client.AllocatedIPs, ","))
clientPrivateKey := fmt.Sprintf("PrivateKey = %s\n", client.PrivateKey)
clientDNS := ""
if client.UseServerDNS {
clientDNS = fmt.Sprintf("DNS = %s", strings.Join(setting.DNSServers, ","))
clientDNS = fmt.Sprintf("DNS = %s\n", strings.Join(setting.DNSServers, ","))
}
// Peer section
peerPublicKey := fmt.Sprintf("PublicKey = %s", server.KeyPair.PublicKey)
peerPresharedKey := fmt.Sprintf("PresharedKey = %s", client.PresharedKey)
peerAllowedIPs := fmt.Sprintf("AllowedIPs = %s", strings.Join(client.AllowedIPs, ","))
peerPublicKey := fmt.Sprintf("PublicKey = %s\n", server.KeyPair.PublicKey)
peerPresharedKey := ""
if client.PresharedKey != "" {
peerPresharedKey = fmt.Sprintf("PresharedKey = %s\n", client.PresharedKey)
}
peerAllowedIPs := fmt.Sprintf("AllowedIPs = %s\n", strings.Join(client.AllowedIPs, ","))
desiredHost := setting.EndpointAddress
desiredPort := server.Interface.ListenPort
@ -44,24 +48,24 @@ func BuildClientConfig(client model.Client, server model.Server, setting model.G
log.Error("Endpoint appears to be incorrectly formatted: ", err)
}
}
peerEndpoint := fmt.Sprintf("Endpoint = %s:%d", desiredHost, desiredPort)
peerEndpoint := fmt.Sprintf("Endpoint = %s:%d\n", desiredHost, desiredPort)
peerPersistentKeepalive := ""
if setting.PersistentKeepalive > 0 {
peerPersistentKeepalive = fmt.Sprintf("PersistentKeepalive = %d", setting.PersistentKeepalive)
peerPersistentKeepalive = fmt.Sprintf("PersistentKeepalive = %d\n", setting.PersistentKeepalive)
}
// build the config as string
strConfig := "[Interface]\n" +
clientAddress + "\n" +
clientPrivateKey + "\n" +
clientDNS + "\n\n" +
"[Peer]" + "\n" +
peerPublicKey + "\n" +
peerPresharedKey + "\n" +
peerAllowedIPs + "\n" +
peerEndpoint + "\n" +
peerPersistentKeepalive + "\n"
clientAddress +
clientPrivateKey +
clientDNS +
"\n[Peer]\n" +
peerPublicKey +
peerPresharedKey +
peerAllowedIPs +
peerEndpoint +
peerPersistentKeepalive
return strConfig
}