mirror of
https://github.com/0rangebananaspy/authelia.git
synced 2024-09-14 22:47:21 +07:00
46 lines
1.3 KiB
Go
46 lines
1.3 KiB
Go
|
package server
|
||
|
|
|
||
|
|
import (
|
||
|
|
"fmt"
|
||
|
|
"html/template"
|
||
|
|
"io/ioutil"
|
||
|
|
"os"
|
||
|
|
|
||
|
|
"github.com/valyala/fasthttp"
|
||
|
|
|
||
|
|
"github.com/authelia/authelia/internal/logging"
|
||
|
|
"github.com/authelia/authelia/internal/utils"
|
||
|
|
)
|
||
|
|
|
||
|
|
var alphaNumericRunes = []rune("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789")
|
||
|
|
|
||
|
|
// ServeIndex serve the index.html file with nonce generated for supporting
|
||
|
|
// restrictive CSP while using material-ui.
|
||
|
|
func ServeIndex(publicDir string) fasthttp.RequestHandler {
|
||
|
|
f, err := os.Open(publicDir + "/index.html")
|
||
|
|
if err != nil {
|
||
|
|
logging.Logger().Fatalf("Unable to open index.html: %v", err)
|
||
|
|
}
|
||
|
|
|
||
|
|
b, err := ioutil.ReadAll(f)
|
||
|
|
if err != nil {
|
||
|
|
logging.Logger().Fatalf("Unable to read index.html: %v", err)
|
||
|
|
}
|
||
|
|
|
||
|
|
tmpl, err := template.New("index").Parse(string(b))
|
||
|
|
if err != nil {
|
||
|
|
logging.Logger().Fatalf("Unable to parse index.html template: %v", err)
|
||
|
|
}
|
||
|
|
|
||
|
|
return func(ctx *fasthttp.RequestCtx) {
|
||
|
|
nonce := utils.RandomString(32, alphaNumericRunes)
|
||
|
|
ctx.SetContentType("text/html; charset=utf-8")
|
||
|
|
ctx.Response.Header.Add("Content-Security-Policy", fmt.Sprintf("default-src 'self'; style-src 'self' 'nonce-%s'", nonce))
|
||
|
|
err := tmpl.Execute(ctx.Response.BodyWriter(), struct{ CSPNonce string }{CSPNonce: nonce})
|
||
|
|
if err != nil {
|
||
|
|
ctx.Error("An error occurred", 503)
|
||
|
|
logging.Logger().Errorf("Unable to execute template: %v", err)
|
||
|
|
return
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|