From a9698728506c580bc38db2e122a5e6ef07f85ce6 Mon Sep 17 00:00:00 2001
From: Matthew Holt <mholt@users.noreply.github.com>
Date: Mon, 20 May 2019 21:21:33 -0600
Subject: Default error handler; rename StaticFiles -> FileServer

---
 modules/caddyhttp/fileserver/matcher.go | 57 +++++++++++++++++++++++++++++++++
 1 file changed, 57 insertions(+)
 create mode 100644 modules/caddyhttp/fileserver/matcher.go

(limited to 'modules/caddyhttp/fileserver/matcher.go')

diff --git a/modules/caddyhttp/fileserver/matcher.go b/modules/caddyhttp/fileserver/matcher.go
new file mode 100644
index 0000000..fd994d0
--- /dev/null
+++ b/modules/caddyhttp/fileserver/matcher.go
@@ -0,0 +1,57 @@
+package fileserver
+
+import (
+	"net/http"
+	"os"
+	"path/filepath"
+
+	"bitbucket.org/lightcodelabs/caddy2"
+	"bitbucket.org/lightcodelabs/caddy2/modules/caddyhttp"
+)
+
+func init() {
+	caddy2.RegisterModule(caddy2.Module{
+		Name: "http.matchers.file",
+		New:  func() (interface{}, error) { return new(FileMatcher), nil },
+	})
+}
+
+// FileMatcher is a matcher that can match requests
+// based on the local file system.
+// TODO: Not sure how to do this well; we'd need the ability to
+// hide files, etc...
+// TODO: Also consider a feature to match directory that
+// contains a certain filename (use filepath.Glob), useful
+// if wanting to map directory-URI requests where the dir
+// has index.php to PHP backends, for example (although this
+// can effectively be done with rehandling already)
+type FileMatcher struct {
+	Root  string   `json:"root"`
+	Path  string   `json:"path"`
+	Flags []string `json:"flags"`
+}
+
+// Match matches the request r against m.
+func (m FileMatcher) Match(r *http.Request) bool {
+	// TODO: sanitize path
+	fullPath := filepath.Join(m.Root, m.Path)
+	var match bool
+	if len(m.Flags) > 0 {
+		match = true
+		fi, err := os.Stat(fullPath)
+		for _, f := range m.Flags {
+			switch f {
+			case "EXIST":
+				match = match && os.IsNotExist(err)
+			case "DIR":
+				match = match && err == nil && fi.IsDir()
+			default:
+				match = false
+			}
+		}
+	}
+	return match
+}
+
+// Interface guard
+var _ caddyhttp.RequestMatcher = (*FileMatcher)(nil)
-- 
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