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131 lines
3.3 KiB
Go
131 lines
3.3 KiB
Go
//go:generate go-bindata -pkg assets -o assets/assets.go templates/ assets/css/ assets/js/ assets/fonts/
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package hugo
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import (
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"mime"
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"net/http"
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"os"
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"path/filepath"
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"strings"
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"github.com/hacdias/caddy-hugo/assets"
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"github.com/hacdias/caddy-hugo/browse"
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"github.com/hacdias/caddy-hugo/config"
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"github.com/hacdias/caddy-hugo/editor"
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"github.com/hacdias/caddy-hugo/utils"
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"github.com/mholt/caddy/config/setup"
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"github.com/mholt/caddy/middleware"
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"github.com/spf13/hugo/commands"
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)
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// Setup configures the middleware
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func Setup(c *setup.Controller) (middleware.Middleware, error) {
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config, _ := config.ParseHugo(c)
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commands.Execute()
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return func(next middleware.Handler) middleware.Handler {
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return &CaddyHugo{Next: next, Config: config}
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}, nil
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}
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// CaddyHugo main type
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type CaddyHugo struct {
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Next middleware.Handler
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Config *config.Config
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}
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func (h CaddyHugo) ServeHTTP(w http.ResponseWriter, r *http.Request) (int, error) {
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// Only handle /admin path
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if middleware.Path(r.URL.Path).Matches("/admin") {
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var err error
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var page string
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code := 404
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// If the length of the components string is less than one, the variable
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// page will always be "admin"
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if len(utils.ParseComponents(r)) > 1 {
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page = utils.ParseComponents(r)[1]
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} else {
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page = utils.ParseComponents(r)[0]
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}
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// If the page isn't "assets" neither "edit", it should always put a
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// trailing slash in the path
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if page != "assets" && page != "edit" {
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if r.URL.Path[len(r.URL.Path)-1] != '/' {
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http.Redirect(w, r, r.URL.Path+"/", http.StatusTemporaryRedirect)
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return 0, nil
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}
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}
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// If the current page is only "/admin/", redirect to "/admin/browse/contents"
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if r.URL.Path == "/admin/" {
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http.Redirect(w, r, "/admin/browse/content/", http.StatusTemporaryRedirect)
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return 0, nil
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}
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// Serve the static assets
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if page == "assets" {
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filename := strings.Replace(r.URL.Path, "/admin/", "", 1)
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file, err := assets.Asset(filename)
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if err != nil {
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return 404, nil
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}
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// Get the file extension ant its mime type
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extension := filepath.Ext(filename)
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mime := mime.TypeByExtension(extension)
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// Write the header with the Content-Type and write the file
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// content to the buffer
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w.Header().Set("Content-Type", mime)
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w.Write(file)
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return 200, nil
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}
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// If the url matches exactly with /admin/settings/ serve that page
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// page variable isn't used here to avoid people using URLs like
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// "/admin/settings/something".
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if r.URL.Path == "/admin/settings/" {
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var frontmatter string
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if _, err := os.Stat("config.yaml"); err == nil {
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frontmatter = "yaml"
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}
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if _, err := os.Stat("config.json"); err == nil {
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frontmatter = "json"
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}
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if _, err := os.Stat("config.toml"); err == nil {
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frontmatter = "toml"
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}
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http.Redirect(w, r, "/admin/edit/config."+frontmatter, http.StatusTemporaryRedirect)
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return 0, nil
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}
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// Browse page
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if page == "browse" {
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code, err = browse.ServeHTTP(w, r, h.Config)
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}
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// Edit page
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if page == "edit" {
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code, err = editor.ServeHTTP(w, r, h.Config)
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}
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// Whenever the header "X-Refenerate" is true, the website should be
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// regenerated. Used in edit and settings, for example.
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if r.Header.Get("X-Regenerate") == "true" {
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commands.Execute()
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}
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return code, err
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}
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return h.Next.ServeHTTP(w, r)
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}
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