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* Implement UDP writer * Implement Net Writer * Utilize Caddy's address parsing functions * A couple little fixes (see #2884)master
Abdelmalek Ihdene
5 years ago
committed by
Matt Holt
4 changed files with 93 additions and 4 deletions
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// 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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