use go 1.12

Signed-off-by: hongming <talonwan@yunify.com>

vendor/github.com/mholt/caddy/caddyhttp/fastcgi/setup.go

@@ -0,0 +1,220 @@
+// 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 fastcgi
+
+import (
+	"errors"
+	"fmt"
+	"net"
+	"net/http"
+	"path/filepath"
+	"strings"
+	"time"
+
+	"github.com/mholt/caddy"
+	"github.com/mholt/caddy/caddyhttp/httpserver"
+)
+
+var defaultTimeout = 60 * time.Second
+
+func init() {
+	caddy.RegisterPlugin("fastcgi", caddy.Plugin{
+		ServerType: "http",
+		Action:     setup,
+	})
+}
+
+// setup configures a new FastCGI middleware instance.
+func setup(c *caddy.Controller) error {
+	cfg := httpserver.GetConfig(c)
+
+	rules, err := fastcgiParse(c)
+	if err != nil {
+		return err
+	}
+
+	cfg.AddMiddleware(func(next httpserver.Handler) httpserver.Handler {
+		return Handler{
+			Next:            next,
+			Rules:           rules,
+			Root:            cfg.Root,
+			FileSys:         http.Dir(cfg.Root),
+			SoftwareName:    caddy.AppName,
+			SoftwareVersion: caddy.AppVersion,
+			ServerName:      cfg.Addr.Host,
+			ServerPort:      cfg.Addr.Port,
+		}
+	})
+
+	return nil
+}
+
+func fastcgiParse(c *caddy.Controller) ([]Rule, error) {
+	var rules []Rule
+
+	cfg := httpserver.GetConfig(c)
+	absRoot, err := filepath.Abs(cfg.Root)
+	if err != nil {
+		return nil, err
+	}
+
+	for c.Next() {
+		args := c.RemainingArgs()
+
+		if len(args) < 2 || len(args) > 3 {
+			return rules, c.ArgErr()
+		}
+
+		rule := Rule{
+			Root:           absRoot,
+			Path:           args[0],
+			ConnectTimeout: defaultTimeout,
+			ReadTimeout:    defaultTimeout,
+			SendTimeout:    defaultTimeout,
+		}
+
+		upstreams := []string{args[1]}
+
+		srvUpstream := false
+		if strings.HasPrefix(upstreams[0], "srv://") {
+			srvUpstream = true
+		}
+
+		if len(args) == 3 {
+			if err := fastcgiPreset(args[2], &rule); err != nil {
+				return rules, err
+			}
+		}
+
+		var err error
+
+		for c.NextBlock() {
+			switch c.Val() {
+			case "root":
+				if !c.NextArg() {
+					return rules, c.ArgErr()
+				}
+				rule.Root = c.Val()
+
+			case "ext":
+				if !c.NextArg() {
+					return rules, c.ArgErr()
+				}
+				rule.Ext = c.Val()
+			case "split":
+				if !c.NextArg() {
+					return rules, c.ArgErr()
+				}
+				rule.SplitPath = c.Val()
+			case "index":
+				args := c.RemainingArgs()
+				if len(args) == 0 {
+					return rules, c.ArgErr()
+				}
+				rule.IndexFiles = args
+
+			case "upstream":
+				if srvUpstream {
+					return rules, c.Err("additional upstreams are not supported with SRV upstream")
+				}
+
+				args := c.RemainingArgs()
+
+				if len(args) != 1 {
+					return rules, c.ArgErr()
+				}
+
+				upstreams = append(upstreams, args[0])
+			case "env":
+				envArgs := c.RemainingArgs()
+				if len(envArgs) < 2 {
+					return rules, c.ArgErr()
+				}
+				rule.EnvVars = append(rule.EnvVars, [2]string{envArgs[0], envArgs[1]})
+			case "except":
+				ignoredPaths := c.RemainingArgs()
+				if len(ignoredPaths) == 0 {
+					return rules, c.ArgErr()
+				}
+				rule.IgnoredSubPaths = ignoredPaths
+
+			case "connect_timeout":
+				if !c.NextArg() {
+					return rules, c.ArgErr()
+				}
+				rule.ConnectTimeout, err = time.ParseDuration(c.Val())
+				if err != nil {
+					return rules, err
+				}
+			case "read_timeout":
+				if !c.NextArg() {
+					return rules, c.ArgErr()
+				}
+				readTimeout, err := time.ParseDuration(c.Val())
+				if err != nil {
+					return rules, err
+				}
+				rule.ReadTimeout = readTimeout
+			case "send_timeout":
+				if !c.NextArg() {
+					return rules, c.ArgErr()
+				}
+				sendTimeout, err := time.ParseDuration(c.Val())
+				if err != nil {
+					return rules, err
+				}
+				rule.SendTimeout = sendTimeout
+			}
+		}
+
+		if srvUpstream {
+			balancer, err := parseSRV(upstreams[0])
+			if err != nil {
+				return rules, c.Err("malformed service locator string: " + err.Error())
+			}
+			rule.balancer = balancer
+		} else {
+			rule.balancer = &roundRobin{addresses: upstreams, index: -1}
+		}
+
+		rules = append(rules, rule)
+	}
+	return rules, nil
+}
+
+func parseSRV(locator string) (*srv, error) {
+	if locator[6:] == "" {
+		return nil, fmt.Errorf("%s does not include the host", locator)
+	}
+
+	return &srv{
+		service:  locator[6:],
+		resolver: &net.Resolver{},
+	}, nil
+}
+
+// fastcgiPreset configures rule according to name. It returns an error if
+// name is not a recognized preset name.
+func fastcgiPreset(name string, rule *Rule) error {
+	switch name {
+	case "php":
+		rule.Ext = ".php"
+		rule.SplitPath = ".php"
+		rule.IndexFiles = []string{"index.php"}
+	default:
+		return errors.New(name + " is not a valid preset name")
+	}
+	return nil
+}