frontend,api: refactor static router

This commit is contained in:
Adhityaa Chandrasekar 2018-12-24 21:49:53 -05:00
parent c29b3a7a25
commit 6d00a8e3aa
4 changed files with 104 additions and 106 deletions

View File

@ -1,41 +1,81 @@
package main
import (
"bytes"
"fmt"
"github.com/gorilla/mux"
"html/template"
"strings"
"io/ioutil"
"mime"
"net/http"
"os"
"mime"
"path"
"os"
)
func redirectLogin(w http.ResponseWriter, r *http.Request) {
http.Redirect(w, r, os.Getenv("ORIGIN")+"/login", 301)
}
type staticAssetPlugs struct {
Origin string
}
type staticHtmlPlugs struct {
type staticPlugs struct {
Origin string
CdnPrefix string
Footer template.HTML
Footer string
}
var asset map[string][]byte = make(map[string][]byte)
var contentType map[string]string = make(map[string]string)
var footer string
var compress bool
func fileDetemplate(f string) ([]byte, error) {
contents, err := ioutil.ReadFile(f)
if err != nil {
logger.Errorf("cannot read file %s: %v", f, err)
return []byte{}, err
}
x := string(contents)
x = strings.Replace(x, "[[[.Origin]]]", os.Getenv("ORIGIN"), -1)
x = strings.Replace(x, "[[[.CdnPrefix]]]", os.Getenv("CDN_PREFIX"), -1)
x = strings.Replace(x, "[[[.Footer]]]", footer, -1)
return []byte(x), nil
}
func footerInit() error {
contents, err := fileDetemplate(os.Getenv("STATIC") + "/footer.html")
if err != nil {
logger.Errorf("cannot init footer: %v", err)
return err
}
footer = string(contents)
return nil
}
func fileLoad(f string) ([]byte, error) {
b, err := fileDetemplate(f)
if err != nil {
logger.Errorf("cannot load file %s: %v", f, err)
return []byte{}, err
}
if !compress {
return b, nil
}
return gzipStatic(b)
}
func staticRouterInit(router *mux.Router) error {
var err error
subdir := pathStrip(os.Getenv("ORIGIN"))
asset := make(map[string][]byte)
gzippedAsset := make(map[string][]byte)
for _, dir := range []string{"js", "css", "images"} {
sl := string(os.PathSeparator)
dir = sl + dir
if err = footerInit(); err != nil {
logger.Errorf("error initialising static router: %v", err)
return err
}
for _, dir := range []string{"/js", "/css", "/images"} {
files, err := ioutil.ReadDir(os.Getenv("STATIC") + dir)
if err != nil {
logger.Errorf("cannot read directory %s%s: %v", os.Getenv("STATIC"), dir, err)
@ -43,108 +83,47 @@ func staticRouterInit(router *mux.Router) error {
}
for _, file := range files {
p := dir + sl + file.Name()
contents, err := ioutil.ReadFile(os.Getenv("STATIC") + p)
f := dir + "/" + file.Name()
asset[subdir+f], err = fileLoad(os.Getenv("STATIC") + f)
if err != nil {
logger.Errorf("cannot read file %s%s: %v", os.Getenv("STATIC"), p, err)
logger.Errorf("cannot detemplate %s%s: %v", os.Getenv("STATIC"), f, err)
return err
}
prefix := ""
if dir == "/js" {
prefix = `window.commento = {origin: "` + os.Getenv("ORIGIN") + `", cdn: "` + os.Getenv("CDN_PREFIX") + `"};
`
}
gzip := (os.Getenv("GZIP_STATIC") == "true")
asset[subdir+p] = []byte(prefix + string(contents))
if gzip {
gzippedAsset[subdir+p], err = gzipStatic(asset[subdir+p])
if err != nil {
logger.Errorf("error gzipping %s: %v", p, err)
return err
}
}
// faster than checking inside the handler
if !gzip {
router.HandleFunc(p, func(w http.ResponseWriter, r *http.Request) {
w.Header().Set("Content-Type", mime.TypeByExtension(path.Ext(r.URL.Path)))
w.Write(asset[r.URL.Path])
})
} else {
router.HandleFunc(p, func(w http.ResponseWriter, r *http.Request) {
w.Header().Set("Content-Type", mime.TypeByExtension(path.Ext(r.URL.Path)))
w.Header().Set("Content-Encoding", "gzip")
w.Write(gzippedAsset[r.URL.Path])
})
}
}
}
footer, err := ioutil.ReadFile(os.Getenv("STATIC") + string(os.PathSeparator) + "footer.html")
if err != nil {
logger.Errorf("cannot read file footer.html: %v", err)
return err
}
pages := []string{
"login",
"forgot",
"reset-password",
"signup",
"confirm-email",
"dashboard",
"logout",
}
html := make(map[string]string)
for _, page := range pages {
html[subdir+page] = ""
"/login",
"/forgot",
"/reset-password",
"/signup",
"/confirm-email",
"/dashboard",
"/logout",
}
for _, page := range pages {
sl := string(os.PathSeparator)
page = sl + page
file := page + ".html"
contents, err := ioutil.ReadFile(os.Getenv("STATIC") + file)
f := page + ".html"
asset[subdir+page], err = fileLoad(os.Getenv("STATIC") + f)
if err != nil {
logger.Errorf("cannot read file %s%s: %v", os.Getenv("STATIC"), file, err)
logger.Errorf("cannot detemplate %s%s: %v", os.Getenv("STATIC"), f, err)
return err
}
result := string(contents)
for {
t, err := template.New(page).Delims("[[[", "]]]").Parse(result)
if err != nil {
logger.Errorf("cannot parse %s%s template: %v", os.Getenv("STATIC"), file, err)
return err
}
var buf bytes.Buffer
t.Execute(&buf, &staticHtmlPlugs{
Origin: os.Getenv("ORIGIN"),
CdnPrefix: os.Getenv("CDN_PREFIX"),
Footer: template.HTML(string(footer)),
})
result = buf.String()
if result == html[subdir+page] {
break
} else {
html[subdir+page] = result
continue
}
}
}
for _, page := range pages {
router.HandleFunc("/"+page, func(w http.ResponseWriter, r *http.Request) {
fmt.Fprint(w, html[r.URL.Path])
for p, _ := range(asset) {
if path.Ext(p) != "" {
contentType[p] = mime.TypeByExtension(path.Ext(p))
} else {
contentType[p] = mime.TypeByExtension("html")
}
router.HandleFunc(p, func(w http.ResponseWriter, r *http.Request) {
w.Header().Set("Content-Type", contentType[r.URL.Path])
if compress {
w.Header().Set("Content-Encoding", "gzip")
}
w.Write(asset[r.URL.Path])
})
}

View File

@ -26,28 +26,33 @@ const jsCompileMap = {
"js/highlight.js": ["node_modules/highlightjs/highlight.pack.min.js"],
"js/chartist.js": ["node_modules/chartist/dist/chartist.min.js"],
"js/login.js": [
"js/constants.js",
"js/utils.js",
"js/http.js",
"js/auth-common.js",
"js/login.js"
],
"js/forgot.js": [
"js/constants.js",
"js/utils.js",
"js/http.js",
"js/forgot.js"
],
"js/reset.js": [
"js/constants.js",
"js/utils.js",
"js/http.js",
"js/reset.js"
],
"js/signup.js": [
"js/constants.js",
"js/utils.js",
"js/http.js",
"js/auth-common.js",
"js/signup.js"
],
"js/dashboard.js": [
"js/constants.js",
"js/utils.js",
"js/http.js",
"js/errors.js",
@ -63,6 +68,7 @@ const jsCompileMap = {
"js/dashboard-danger.js",
],
"js/logout.js": [
"js/constants.js",
"js/utils.js",
"js/logout.js"
],

View File

@ -65,8 +65,8 @@
var ID_FOOTER = "commento-footer";
var origin = global.origin;
var cdn = global.cdn;
var origin = "[[[.Origin]]]";
var cdn = "[[[.CdnPrefix]]]";
var root = null;
var cssOverride;
var autoInit;

13
frontend/js/constants.js Normal file
View File

@ -0,0 +1,13 @@
(function (global, document) {
"use strict";
(document);
if (window.commento === undefined) {
window.commento = {};
}
window.commento.origin = "[[[.Origin]]]";
window.commento.cdn = "[[[.CdnPrefix]]]";
} (window, document));