add nex protocol support

1 files changed, 48 insertions, 0 deletions

diff --git a/contrib/fs/nex.go b/contrib/fs/nex.go
new file mode 100644
index 0000000..47eb83e
--- /dev/null
+++ b/contrib/fs/nex.go
@@ -0,0 +1,48 @@
+package fs
+
+import (
+	"text/template"
+
+	sr "tildegit.org/tjp/sliderule"
+	"tildegit.org/tjp/sliderule/nex"
+)
+
+// NexFileHandler builds a handler which serves up files from a file system.
+//
+// It only serves responses for paths which correspond to files, not directories.
+func NexFileHandler(fsroot, urlroot string) sr.Handler {
+	return fileHandler(nex.ServerProtocol, fsroot, urlroot)
+}
+
+// NexDirectoryDefault serves up default files for directory path requests.
+//
+// If any of the supported filenames are found in the requested directory, the
+// contents of that file is returned as the nex response.
+//
+// It returns nil for any paths which don't correspond to a directory.
+func NexDirectoryDefault(fsroot, urlroot string, filenames ...string) sr.Handler {
+	return directoryDefault(nex.ServerProtocol, fsroot, urlroot, false, filenames...)
+}
+
+// NexDirectoryListing produces a listing of the contents of any requested directories.
+//
+// It returns a nil response for any paths which don't correspond to a filesystem directory.
+//
+// When it encounters a directory path which doesn't end in a trailing slash (/) it returns
+// a nil response. Trailing slashes are necessary for relative links to work properly.
+//
+// The template may be nil, in which case DefaultNexDirectoryList is used instead. The
+// template is then processed with RenderDirectoryListing.
+func NexDirectoryListing(fsroot, urlroot string, tmpl *template.Template) sr.Handler {
+	if tmpl == nil {
+		tmpl = DefaultNexDirectoryList
+	}
+	return directoryListing(nex.ServerProtocol, fsroot, urlroot, "", false, tmpl)
+}
+
+var DefaultNexDirectoryList = template.Must(template.New("nex_dirlist").Parse(`
+{{ .DirName }} directory:
+{{ range .Entries }}
+=> ./{{ .Name }}{{ if .IsDir }}/{{ end -}}
+{{ end }}
+`[1:]))