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// Copyright 2015 Matthew Holt and The Caddy Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package proxyprotocol
import (
"github.com/caddyserver/caddy/v2"
"github.com/caddyserver/caddy/v2/caddyconfig/caddyfile"
)
func init() {
caddy.RegisterModule(ListenerWrapper{})
}
func (ListenerWrapper) CaddyModule() caddy.ModuleInfo {
return caddy.ModuleInfo{
ID: "caddy.listeners.proxy_protocol",
New: func() caddy.Module { return new(ListenerWrapper) },
}
}
// UnmarshalCaddyfile sets up the listener Listenerwrapper from Caddyfile tokens. Syntax:
//
// proxy_protocol {
// timeout <duration>
// allow <IPs...>
// deny <IPs...>
// fallback_policy <policy>
// }
func (w *ListenerWrapper) UnmarshalCaddyfile(d *caddyfile.Dispenser) error {
d.Next() // consume wrapper name
// No same-line options are supported
if d.NextArg() {
return d.ArgErr()
}
for d.NextBlock(0) {
switch d.Val() {
case "timeout":
if !d.NextArg() {
return d.ArgErr()
}
dur, err := caddy.ParseDuration(d.Val())
if err != nil {
return d.Errf("parsing proxy_protocol timeout duration: %v", err)
}
w.Timeout = caddy.Duration(dur)
case "allow":
w.Allow = append(w.Allow, d.RemainingArgs()...)
case "deny":
w.Deny = append(w.Deny, d.RemainingArgs()...)
case "fallback_policy":
if !d.NextArg() {
return d.ArgErr()
}
p, err := parsePolicy(d.Val())
if err != nil {
return d.WrapErr(err)
}
w.FallbackPolicy = p
default:
return d.ArgErr()
}
}
return nil
}
// Interface guards
var (
_ caddy.Provisioner = (*ListenerWrapper)(nil)
_ caddy.Module = (*ListenerWrapper)(nil)
_ caddy.ListenerWrapper = (*ListenerWrapper)(nil)
_ caddyfile.Unmarshaler = (*ListenerWrapper)(nil)
)
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