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documize/core/web/web.go
2017-07-19 18:47:01 +01:00

104 lines
2.9 KiB
Go

// Copyright 2016 Documize Inc. <legal@documize.com>. All rights reserved.
//
// This software (Documize Community Edition) is licensed under
// GNU AGPL v3 http://www.gnu.org/licenses/agpl-3.0.en.html
//
// You can operate outside the AGPL restrictions by purchasing
// Documize Enterprise Edition and obtaining a commercial license
// by contacting <sales@documize.com>.
//
// https://documize.com
// Package web contains the Documize static web data.
package web
import (
"html/template"
"net/http"
"github.com/documize/community/core/api"
"github.com/documize/community/core/secrets"
)
// SiteMode defines that the web server should show the system to be in a particular state.
// var SiteMode string
const (
// SiteModeNormal serves app
SiteModeNormal = ""
// SiteModeOffline serves offline.html
SiteModeOffline = "1"
// SiteModeSetup tells Ember to serve setup route
SiteModeSetup = "2"
// SiteModeBadDB redirects to db-error.html page
SiteModeBadDB = "3"
)
// SiteInfo describes set-up information about the site
var SiteInfo struct {
DBname, DBhash, Issue string
}
func init() {
// env.GetString(&SiteMode, "offline", false, "set to '1' for OFFLINE mode", nil) // no sense overriding this setting from the DB
SiteInfo.DBhash = secrets.GenerateRandomPassword() // do this only once
}
// EmbedHandler is defined in each embed directory
type EmbedHandler interface {
Asset(string) ([]byte, error)
AssetDir(string) ([]string, error)
StaticAssetsFileSystem() http.FileSystem
}
// Embed allows access to the embedded data
var Embed EmbedHandler
// EmberHandler provides the webserver for pages developed using the Ember programming environment.
func EmberHandler(w http.ResponseWriter, r *http.Request) {
filename := "index.html"
switch api.Runtime.Flags.SiteMode {
case SiteModeOffline:
filename = "offline.html"
case SiteModeSetup:
// NoOp
case SiteModeBadDB:
filename = "db-error.html"
default:
SiteInfo.DBhash = ""
}
data, err := Embed.Asset("bindata/" + filename)
if err != nil {
// Asset was not found.
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
emberView := template.Must(template.New(filename).Parse(string(data)))
if err := emberView.Execute(w, SiteInfo); err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
}
}
// StaticAssetsFileSystem data encoded in the go:generate above.
func StaticAssetsFileSystem() http.FileSystem {
return Embed.StaticAssetsFileSystem()
//return &assetfs.AssetFS{Asset: Asset, AssetDir: AssetDir, AssetInfo: AssetInfo, Prefix: "bindata/public"}
}
// ReadFile is intended to substitute for ioutil.ReadFile().
func ReadFile(filename string) ([]byte, error) {
return Embed.Asset("bindata/" + filename)
}
// Asset fetch.
func Asset(location string) ([]byte, error) {
return Embed.Asset(location)
}
// AssetDir returns web app "assets" folder.
func AssetDir(dir string) ([]string, error) {
return Embed.AssetDir(dir)
}