Migrate remaining middleware packages

caddyhttp/fastcgi/setup.go

@@ -0,0 +1,127 @@
+package fastcgi
+
+import (
+	"errors"
+	"net/http"
+	"path/filepath"
+
+	"github.com/mholt/caddy"
+	"github.com/mholt/caddy/caddyhttp/httpserver"
+)
+
+func init() {
+	caddy.RegisterPlugin(caddy.Plugin{
+		Name:       "fastcgi",
+		ServerType: "http",
+		Action:     setup,
+	})
+}
+
+// setup configures a new FastCGI middleware instance.
+func setup(c *caddy.Controller) error {
+	cfg := httpserver.GetConfig(c.Key)
+	absRoot, err := filepath.Abs(cfg.Root)
+	if err != nil {
+		return err
+	}
+
+	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,
+			AbsRoot:         absRoot,
+			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
+
+	for c.Next() {
+		var rule Rule
+
+		args := c.RemainingArgs()
+
+		switch len(args) {
+		case 0:
+			return rules, c.ArgErr()
+		case 1:
+			rule.Path = "/"
+			rule.Address = args[0]
+		case 2:
+			rule.Path = args[0]
+			rule.Address = args[1]
+		case 3:
+			rule.Path = args[0]
+			rule.Address = args[1]
+			err := fastcgiPreset(args[2], &rule)
+			if err != nil {
+				return rules, c.Err("Invalid fastcgi rule preset '" + args[2] + "'")
+			}
+		}
+
+		for c.NextBlock() {
+			switch 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 "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
+			}
+		}
+
+		rules = append(rules, rule)
+	}
+
+	return rules, 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
+}