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| author | Shulhan <ms@kilabit.info> | 2022-08-03 20:44:11 +0700 |
|---|---|---|
| committer | Shulhan <ms@kilabit.info> | 2022-08-03 20:44:11 +0700 |
| commit | ea17dae687ab24d3d73c3dfc3bd3f71ea9c94c96 (patch) | |
| tree | 8dbe4d47cbc57b2abe4691389f941926340eabf5 | |
| parent | e87e437cd3a4fc043c2642a7211b2631f767f80c (diff) | |
| download | pakakeh.go-ea17dae687ab24d3d73c3dfc3bd3f71ea9c94c96.tar.xz | |
lib/memfs: add method to generate index.html in Node's Content
The GenerateIndexHtml generate simple directory listing as HTML for
all child in the node.
This method is only applicable if node is a directory.
| -rw-r--r-- | lib/memfs/node.go | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/lib/memfs/node.go b/lib/memfs/node.go index bf436fc1..0520a044 100644 --- a/lib/memfs/node.go +++ b/lib/memfs/node.go @@ -21,6 +21,17 @@ import ( libbytes "github.com/shuLhan/share/lib/bytes" ) +const ( + templateIndexHtmlHeader = `<!DOCTYPE html><html> +<head> +<meta name="viewport" content="width=device-width"> +<style> +body{font-family:monospace; white-space:pre;} +</style> +</head> +<body>` +) + var ( errOffset = errors.New("Seek: invalid offset") errWhence = errors.New("Seek: invalid whence") @@ -139,6 +150,46 @@ func (node *Node) Close() error { return nil } +// GenerateIndexHtml generate simple directory listing as HTML for all childs +// in this node. +// This method is only applicable if node is a directory. +func (node *Node) GenerateIndexHtml() { + if !node.IsDir() { + return + } + if len(node.Content) != 0 { + // Either the index has been generated or the node is not + // empty. + node.size = int64(len(node.Content)) + return + } + + var ( + buf bytes.Buffer + child *Node + ) + + buf.WriteString(templateIndexHtmlHeader) + + fmt.Fprintf(&buf, `<h3>Index of %s</h3>`, node.name) + + if node.Parent != nil { + buf.WriteString(`<div><a href="..">..</a></div><br/>`) + } + + for _, child = range node.Childs { + fmt.Fprintf(&buf, `<div>%s <tt>%12d</tt> %s <a href=%q>%s</a></div><br/>`, + child.mode, child.size, child.modTime.Format(time.RFC3339), + child.Path, child.name) + } + + buf.WriteString(`</body></html>`) + + node.ContentType = `text/html; charset=utf-8` + node.size = int64(buf.Len()) + node.Content = libbytes.Copy(buf.Bytes()) +} + func (node *Node) IsDir() bool { return node.mode.IsDir() } |