filebrowser/handlers/editor.go

107 lines
2.5 KiB
Go

package handlers
import (
"bytes"
"errors"
"net/http"
"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
Visual bool
Content string
FrontMatter *frontmatter.Content
}
// GetEditor gets the editor based on a FileInfo struct
func GetEditor(r *http.Request, i *file.Info) (*Editor, error) {
var err error
// Create a new editor variable and set the mode
editor := new(Editor)
editor.Mode = editorMode(i.Name)
editor.Class = editorClass(editor.Mode)
if editor.Class == "frontmatter-only" || editor.Class == "complete" {
editor.Visual = true
}
if r.URL.Query().Get("visual") == "false" {
editor.Class = "content-only"
}
if 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))
}
}
if editor.Class == "complete" && frontmatter.HasRune(i.Content) {
var page parser.Page
// 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 editor.Class == "complete" && !frontmatter.HasRune(i.Content) {
err = errors.New("Complete but without rune")
}
if editor.Class == "content-only" || err != nil {
editor.Class = "content-only"
editor.Content = i.StringifyContent()
}
return editor, nil
}
func editorClass(mode string) string {
switch mode {
case "json", "toml", "yaml":
return "frontmatter-only"
case "markdown", "asciidoc", "rst":
return "complete"
}
return "content-only"
}
func editorMode(filename string) string {
mode := strings.TrimPrefix(filepath.Ext(filename), ".")
switch mode {
case "md", "markdown", "mdown", "mmark":
mode = "markdown"
case "asciidoc", "adoc", "ad":
mode = "asciidoc"
case "rst":
mode = "rst"
case "html", "htm":
mode = "html"
case "js":
mode = "javascript"
case "go":
mode = "golang"
}
return mode
}