filebrowser/handlers/editor.go

90 lines
2.1 KiB
Go

package handlers
import (
"bytes"
"path/filepath"
"strings"
"github.com/hacdias/caddy-filemanager/file"
"github.com/hacdias/caddy-filemanager/frontmatter"
"github.com/spf13/hugo/parser"
)
// Editor contains the information for the editor page
type Editor struct {
Class string
Mode string
Content string
FrontMatter *frontmatter.Content
}
// GetEditor gets the editor based on a FileInfo struct
func GetEditor(i *file.Info) (*Editor, error) {
// Create a new editor variable and set the mode
editor := new(Editor)
editor.Mode = strings.TrimPrefix(filepath.Ext(i.Name()), ".")
switch editor.Mode {
case "md", "markdown", "mdown", "mmark":
editor.Mode = "markdown"
case "asciidoc", "adoc", "ad":
editor.Mode = "asciidoc"
case "rst":
editor.Mode = "rst"
case "html", "htm":
editor.Mode = "html"
case "js":
editor.Mode = "javascript"
case "go":
editor.Mode = "golang"
}
var page parser.Page
var err error
// Handle the content depending on the file extension
switch editor.Mode {
case "json", "toml", "yaml":
// Defines the class and declares an error
editor.Class = "frontmatter-only"
// Checks if the file already has the frontmatter rune and parses it
if frontmatter.HasRune(i.Content) {
editor.FrontMatter, _, err = frontmatter.Pretty(i.Content)
} else {
editor.FrontMatter, _, err = frontmatter.Pretty(frontmatter.AppendRune(i.Content, editor.Mode))
}
// Check if there were any errors
if err == nil {
break
}
fallthrough
case "markdown", "asciidoc", "rst":
if frontmatter.HasRune(i.Content) {
// Starts a new buffer and parses the file using Hugo's functions
buffer := bytes.NewBuffer(i.Content)
page, err = parser.ReadFrom(buffer)
editor.Class = "complete"
if err == nil {
// Parses the page content and the frontmatter
editor.Content = strings.TrimSpace(string(page.Content()))
editor.FrontMatter, _, err = frontmatter.Pretty(page.FrontMatter())
if err == nil {
break
}
}
}
fallthrough
default:
editor.Class = "content-only"
editor.Content = i.StringifyContent()
}
return editor, nil
}