Function viewCollectionPost

posts.go:1459–1696

(app *App, w http.ResponseWriter, r *http.Request)

}

func viewCollectionPost(app *App, w http.ResponseWriter, r *http.Request) error {
	vars := mux.Vars(r)
	slug := vars["slug"]

	// NOTE: until this is done better, be sure to keep this in parity with
	// isRaw() and handleViewPost()
	isJSON := strings.HasSuffix(slug, ".json")
	isXML := strings.HasSuffix(slug, ".xml")
	isMarkdown := strings.HasSuffix(slug, ".md")
	isRaw := strings.HasSuffix(slug, ".txt") || isJSON || isXML || isMarkdown

	cr := &collectionReq{}
	err := processCollectionRequest(cr, vars, w, r)
	if err != nil {
		return err
	}

	// Check for hellbanned users
	u, err := checkUserForCollection(app, cr, r, true)
	if err != nil {
		return err
	}

	// Normalize the URL, redirecting user to consistent post URL
	if slug != strings.ToLower(slug) {
		loc := fmt.Sprintf("/%s", strings.ToLower(slug))
		if !app.cfg.App.SingleUser {
			loc = "/" + cr.alias + loc
		}
		return impart.HTTPError{http.StatusMovedPermanently, loc}
	}

	// Display collection if this is a collection
	var c *Collection
	if app.cfg.App.SingleUser {
		c, err = app.db.GetCollectionByID(1)
	} else {
		c, err = app.db.GetCollection(cr.alias)
	}
	if err != nil {
		if err, ok := err.(impart.HTTPError); ok {
			if err.Status == http.StatusNotFound {
				// Redirect if necessary
				newAlias := app.db.GetCollectionRedirect(cr.alias)
				if newAlias != "" {
					return impart.HTTPError{http.StatusFound, "/" + newAlias + "/" + slug}
				}
			}
		}
		return err
	}
	c.hostName = app.cfg.App.Host

	silenced, err := app.db.IsUserSilenced(c.OwnerID)
	if err != nil {
		log.Error("view collection post: %v", err)
	}