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authorAbdelmalek Ihdene <52615297+AbdelmalekIhdene@users.noreply.github.com>2019-12-15 14:58:01 -0500
committerMatt Holt <mholt@users.noreply.github.com>2019-12-15 12:58:01 -0700
commitc3bcd967bd3be85c41ac5f630d496f0dc0d18115 (patch)
tree8bb555badd890eb1713dcc20d99ab81a3e98367f /modules/logging
parent6ea121ddf8c5be6de892971782d6f0fe2938ebbf (diff)
logging: Implement net writer (#2884)
* Implement UDP writer * Implement Net Writer * Utilize Caddy's address parsing functions * A couple little fixes (see #2884)
Diffstat (limited to 'modules/logging')
-rw-r--r--modules/logging/netwriter.go82
1 files changed, 82 insertions, 0 deletions
diff --git a/modules/logging/netwriter.go b/modules/logging/netwriter.go
new file mode 100644
index 0000000..1df80b6
--- /dev/null
+++ b/modules/logging/netwriter.go
@@ -0,0 +1,82 @@
+// 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 logging
+
+import (
+ "fmt"
+ "io"
+ "net"
+
+ "github.com/caddyserver/caddy/v2"
+)
+
+func init() {
+ caddy.RegisterModule(NetWriter{})
+}
+
+// NetWriter implements a log writer that outputs to a network socket.
+type NetWriter struct {
+ Address string `json:"address,omitempty"`
+
+ addr caddy.ParsedAddress
+}
+
+// CaddyModule returns the Caddy module information.
+func (NetWriter) CaddyModule() caddy.ModuleInfo {
+ return caddy.ModuleInfo{
+ ID: "caddy.logging.writers.net",
+ New: func() caddy.Module { return new(NetWriter) },
+ }
+}
+
+// Provision sets up the module.
+func (nw *NetWriter) Provision(ctx caddy.Context) error {
+ repl := caddy.NewReplacer()
+ address, err := repl.ReplaceOrErr(nw.Address, true, true)
+ if err != nil {
+ return fmt.Errorf("invalid host in address: %v", err)
+ }
+
+ nw.addr, err = caddy.ParseNetworkAddress(address)
+ if err != nil {
+ return fmt.Errorf("parsing network address '%s': %v", address, err)
+ }
+
+ if nw.addr.PortRangeSize() != 1 {
+ return fmt.Errorf("multiple ports not supported")
+ }
+
+ return nil
+}
+
+func (nw NetWriter) String() string {
+ return nw.addr.String()
+}
+
+// WriterKey returns a unique key representing this nw.
+func (nw NetWriter) WriterKey() string {
+ return nw.addr.String()
+}
+
+// OpenWriter opens a new network connection.
+func (nw NetWriter) OpenWriter() (io.WriteCloser, error) {
+ return net.Dial(nw.addr.Network, nw.addr.JoinHostPort(0))
+}
+
+// Interface guards
+var (
+ _ caddy.Provisioner = (*NetWriter)(nil)
+ _ caddy.WriterOpener = (*NetWriter)(nil)
+)