clean

_stuff/editor.go

@@ -0,0 +1,161 @@
+package hugo
+
+import (
+	"bytes"
+	"errors"
+	"io/ioutil"
+	"net/http"
+	"os"
+	"path/filepath"
+	"strings"
+	"text/template"
+
+	"github.com/hacdias/caddy-hugo/tools/frontmatter"
+	"github.com/hacdias/caddy-hugo/tools/templates"
+	"github.com/hacdias/caddy-hugo/tools/variables"
+	"github.com/spf13/hugo/parser"
+)
+
+type editor struct {
+	Name        string
+	Class       string
+	IsPost      bool
+	Mode        string
+	Content     string
+	FrontMatter interface{}
+	Config      *Config
+}
+
+// GET handles the GET method on editor page
+func GET(w http.ResponseWriter, r *http.Request, c *Config, filename string) (int, error) {
+	// Check if the file format is supported. If not, send a "Not Acceptable"
+	// header and an error
+	if !templates.CanBeEdited(filename) {
+		return http.StatusNotAcceptable, errors.New("File format not supported.")
+	}
+
+	// Check if the file exists.
+	if _, err := os.Stat(filename); os.IsNotExist(err) {
+		return http.StatusNotFound, err
+	} else if os.IsPermission(err) {
+		return http.StatusForbidden, err
+	} else if err != nil {
+		return http.StatusInternalServerError, err
+	}
+
+	// Open the file and check if there was some error while opening
+	file, err := ioutil.ReadFile(filename)
+	if os.IsPermission(err) {
+		return http.StatusForbidden, err
+	} else if err != nil {
+		return http.StatusInternalServerError, err
+	}
+
+	// Create a new editor variable and set the extension
+	page := new(editor)
+	page.Mode = strings.TrimPrefix(filepath.Ext(filename), ".")
+	page.Name = strings.Replace(filename, c.Path, "", 1)
+	page.Config = c
+	page.IsPost = false
+
+	// Sanitize the extension
+	page.Mode = sanitizeMode(page.Mode)
+
+	var ppage parser.Page
+
+	// Handle the content depending on the file extension
+	switch page.Mode {
+	case "markdown", "asciidoc", "rst":
+		if hasFrontMatterRune(file) {
+			// Starts a new buffer and parses the file using Hugo's functions
+			buffer := bytes.NewBuffer(file)
+			ppage, err = parser.ReadFrom(buffer)
+			if err != nil {
+				return http.StatusInternalServerError, err
+			}
+
+			if strings.Contains(string(ppage.FrontMatter()), "date") {
+				page.IsPost = true
+			}
+
+			// Parses the page content and the frontmatter
+			page.Content = strings.TrimSpace(string(ppage.Content()))
+			page.FrontMatter, page.Name, err = frontmatter.Pretty(ppage.FrontMatter())
+			page.Class = "complete"
+		} else {
+			// The editor will handle only content
+			page.Class = "content-only"
+			page.Content = string(file)
+		}
+	case "json", "toml", "yaml":
+		// Defines the class and declares an error
+		page.Class = "frontmatter-only"
+
+		// Checks if the file already has the frontmatter rune and parses it
+		if hasFrontMatterRune(file) {
+			page.FrontMatter, _, err = frontmatter.Pretty(file)
+		} else {
+			page.FrontMatter, _, err = frontmatter.Pretty(appendFrontMatterRune(file, page.Mode))
+		}
+
+		// Check if there were any errors
+		if err != nil {
+			return http.StatusInternalServerError, err
+		}
+	default:
+		// The editor will handle only content
+		page.Class = "content-only"
+		page.Content = string(file)
+	}
+
+	// Create the functions map, then the template, check for erros and
+	// execute the template if there aren't errors
+	functions := template.FuncMap{
+		"SplitCapitalize": variables.SplitCapitalize,
+		"Defined":         variables.Defined,
+	}
+
+	tpl, err := templates.Get(r, functions, "editor", "frontmatter")
+
+	if err != nil {
+		return http.StatusInternalServerError, err
+	}
+
+	return http.StatusOK, tpl.Execute(w, page)
+}
+
+func hasFrontMatterRune(file []byte) bool {
+	return strings.HasPrefix(string(file), "---") ||
+		strings.HasPrefix(string(file), "+++") ||
+		strings.HasPrefix(string(file), "{")
+}
+
+func appendFrontMatterRune(frontmatter []byte, language string) []byte {
+	switch language {
+	case "yaml":
+		return []byte("---\n" + string(frontmatter) + "\n---")
+	case "toml":
+		return []byte("+++\n" + string(frontmatter) + "\n+++")
+	case "json":
+		return frontmatter
+	}
+
+	return frontmatter
+}
+
+func sanitizeMode(extension string) string {
+	switch extension {
+	case "md", "markdown", "mdown", "mmark":
+		return "markdown"
+	case "asciidoc", "adoc", "ad":
+		return "asciidoc"
+	case "rst":
+		return "rst"
+	case "html", "htm":
+		return "html"
+	case "js":
+		return "javascript"
+	default:
+		return extension
+	}
+}