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http_handler.go
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http_handler.go
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package main
// sackci
// Copyright (C) 2017 Maximilian Pachl
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
// ----------------------------------------------------------------------------------
// imports
// ----------------------------------------------------------------------------------
import (
"net/http"
"github.com/faryon93/sackci/assets"
// "strings"
"strings"
)
// ----------------------------------------------------------------------------------
// public functions
// ----------------------------------------------------------------------------------
// Default not found handler.
func NotFound(w http.ResponseWriter, r *http.Request) {
http.Error(w, "not found", http.StatusNotFound)
}
// Redirects to the configured https endpoint.
func RedirectHttps(w http.ResponseWriter, r *http.Request) {
url := "https://" + r.Host + r.URL.String()
http.Redirect(w, r, url, http.StatusTemporaryRedirect)
}
// Rewrites everything which is not contained in the embedded asset fs
// to the root path in order to support HTML5 in browser naivation.
func PrettyUrl(fs http.FileSystem) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
// do not serve lua files from assetfs
if strings.HasSuffix(r.URL.Path, ".lua") {
http.Error(w, "not found", http.StatusNotFound)
return
}
// the webpage root cannot be checked in fs
// everything without a file ending should to be
// rewritten to index page for a more convenient
// user experiance and to prevent the server from delivering
// wrong file content to expected filetype
if r.URL.Path != "/" && !assets.FileExists(r.URL.String()) {
r.URL.Path = "/"
}
http.FileServer(fs).ServeHTTP(w, r)
})
}