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https://github.com/caddyserver/caddy.git
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c3bcd967bd
* Implement UDP writer * Implement Net Writer * Utilize Caddy's address parsing functions * A couple little fixes (see #2884)
83 lines
2.1 KiB
Go
83 lines
2.1 KiB
Go
// Copyright 2015 Matthew Holt and The Caddy Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package logging
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import (
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"fmt"
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"io"
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"net"
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"github.com/caddyserver/caddy/v2"
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)
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func init() {
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caddy.RegisterModule(NetWriter{})
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}
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// NetWriter implements a log writer that outputs to a network socket.
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type NetWriter struct {
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Address string `json:"address,omitempty"`
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addr caddy.ParsedAddress
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}
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// CaddyModule returns the Caddy module information.
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func (NetWriter) CaddyModule() caddy.ModuleInfo {
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return caddy.ModuleInfo{
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ID: "caddy.logging.writers.net",
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New: func() caddy.Module { return new(NetWriter) },
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}
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}
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// Provision sets up the module.
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func (nw *NetWriter) Provision(ctx caddy.Context) error {
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repl := caddy.NewReplacer()
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address, err := repl.ReplaceOrErr(nw.Address, true, true)
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if err != nil {
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return fmt.Errorf("invalid host in address: %v", err)
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}
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nw.addr, err = caddy.ParseNetworkAddress(address)
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if err != nil {
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return fmt.Errorf("parsing network address '%s': %v", address, err)
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}
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if nw.addr.PortRangeSize() != 1 {
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return fmt.Errorf("multiple ports not supported")
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}
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return nil
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}
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func (nw NetWriter) String() string {
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return nw.addr.String()
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}
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// WriterKey returns a unique key representing this nw.
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func (nw NetWriter) WriterKey() string {
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return nw.addr.String()
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}
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// OpenWriter opens a new network connection.
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func (nw NetWriter) OpenWriter() (io.WriteCloser, error) {
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return net.Dial(nw.addr.Network, nw.addr.JoinHostPort(0))
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}
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// Interface guards
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var (
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_ caddy.Provisioner = (*NetWriter)(nil)
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_ caddy.WriterOpener = (*NetWriter)(nil)
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)
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