TUN-528: Move cloudflared into a separate repo

vendor/github.com/mholt/caddy/caddyhttp/timeouts/timeouts.go

@@ -0,0 +1,120 @@
+// Copyright 2015 Light Code Labs, LLC
+//
+// 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 timeouts
+
+import (
+	"time"
+
+	"github.com/mholt/caddy"
+	"github.com/mholt/caddy/caddyhttp/httpserver"
+)
+
+func init() {
+	caddy.RegisterPlugin("timeouts", caddy.Plugin{
+		ServerType: "http",
+		Action:     setupTimeouts,
+	})
+}
+
+func setupTimeouts(c *caddy.Controller) error {
+	config := httpserver.GetConfig(c)
+
+	for c.Next() {
+		var hasOptionalBlock bool
+		for c.NextBlock() {
+			hasOptionalBlock = true
+
+			// ensure the kind of timeout is recognized
+			kind := c.Val()
+			if kind != "read" && kind != "header" && kind != "write" && kind != "idle" {
+				return c.Errf("unknown timeout '%s': must be read, header, write, or idle", kind)
+			}
+
+			// parse the timeout duration
+			if !c.NextArg() {
+				return c.ArgErr()
+			}
+			if c.NextArg() {
+				// only one value permitted
+				return c.ArgErr()
+			}
+			var dur time.Duration
+			if c.Val() != "none" {
+				var err error
+				dur, err = time.ParseDuration(c.Val())
+				if err != nil {
+					return c.Errf("%v", err)
+				}
+				if dur < 0 {
+					return c.Err("non-negative duration required for timeout value")
+				}
+			}
+
+			// set this timeout's duration
+			switch kind {
+			case "read":
+				config.Timeouts.ReadTimeout = dur
+				config.Timeouts.ReadTimeoutSet = true
+			case "header":
+				config.Timeouts.ReadHeaderTimeout = dur
+				config.Timeouts.ReadHeaderTimeoutSet = true
+			case "write":
+				config.Timeouts.WriteTimeout = dur
+				config.Timeouts.WriteTimeoutSet = true
+			case "idle":
+				config.Timeouts.IdleTimeout = dur
+				config.Timeouts.IdleTimeoutSet = true
+			}
+		}
+		if !hasOptionalBlock {
+			// set all timeouts to the same value
+
+			if !c.NextArg() {
+				return c.ArgErr()
+			}
+			if c.NextArg() {
+				// only one value permitted
+				return c.ArgErr()
+			}
+			val := c.Val()
+
+			config.Timeouts.ReadTimeoutSet = true
+			config.Timeouts.ReadHeaderTimeoutSet = true
+			config.Timeouts.WriteTimeoutSet = true
+			config.Timeouts.IdleTimeoutSet = true
+
+			if val == "none" {
+				config.Timeouts.ReadTimeout = 0
+				config.Timeouts.ReadHeaderTimeout = 0
+				config.Timeouts.WriteTimeout = 0
+				config.Timeouts.IdleTimeout = 0
+			} else {
+				dur, err := time.ParseDuration(val)
+				if err != nil {
+					return c.Errf("unknown timeout duration: %v", err)
+				}
+				if dur < 0 {
+					return c.Err("non-negative duration required for timeout value")
+				}
+				config.Timeouts.ReadTimeout = dur
+				config.Timeouts.ReadHeaderTimeout = dur
+				config.Timeouts.WriteTimeout = dur
+				config.Timeouts.IdleTimeout = dur
+			}
+		}
+	}
+
+	return nil
+}