authelia/internal/server/template.go
Amir Zarrinkafsh e2ebdb7e41
fix: oidc issuer path and strip path middleware (#2272)
* fix: oidc issuer path and strip path middleware

This ensures the server.path requests append the base_url to the oidc well-known issuer information and adjusts server.path configuration to only strip the configured path instead of the first level entirely regardless of its content.

* fix: only log the token error and general refactoring

* refactor: factorize base_url functions

* refactor(server): include all paths in startup logging

* refactor: factorize

* refactor: GetExternalRootURL -> ExternalRootURL

Co-authored-by: James Elliott <james-d-elliott@users.noreply.github.com>
2021-08-10 10:31:08 +10:00

105 lines
3.0 KiB
Go

package server
import (
"fmt"
"io/ioutil"
"os"
"path/filepath"
"text/template"
"github.com/valyala/fasthttp"
"github.com/authelia/authelia/internal/logging"
"github.com/authelia/authelia/internal/utils"
)
var alphaNumericRunes = []rune("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789")
// ServeTemplatedFile serves a templated version of a specified file,
// this is utilised to pass information between the backend and frontend
// and generate a nonce to support a restrictive CSP while using material-ui.
func ServeTemplatedFile(publicDir, file, rememberMe, resetPassword, session, theme string) fasthttp.RequestHandler {
logger := logging.Logger()
f, err := assets.Open(publicDir + file)
if err != nil {
logger.Fatalf("Unable to open %s: %s", file, err)
}
b, err := ioutil.ReadAll(f)
if err != nil {
logger.Fatalf("Unable to read %s: %s", file, err)
}
tmpl, err := template.New("file").Parse(string(b))
if err != nil {
logger.Fatalf("Unable to parse %s template: %s", file, err)
}
return func(ctx *fasthttp.RequestCtx) {
base := ""
if baseURL := ctx.UserValue("base_url"); baseURL != nil {
base = baseURL.(string)
}
nonce := utils.RandomString(32, alphaNumericRunes)
switch extension := filepath.Ext(file); extension {
case ".html":
ctx.SetContentType("text/html; charset=utf-8")
default:
ctx.SetContentType("text/plain; charset=utf-8")
}
switch {
case publicDir == swaggerAssets:
ctx.Response.Header.Add("Content-Security-Policy", fmt.Sprintf("base-uri 'self' ; default-src 'self' ; img-src 'self' https://validator.swagger.io data: ; object-src 'none' ; script-src 'self' 'unsafe-inline' 'nonce-%s' ; style-src 'self' 'nonce-%s'", nonce, nonce))
case os.Getenv("ENVIRONMENT") == dev:
ctx.Response.Header.Add("Content-Security-Policy", fmt.Sprintf("default-src 'self' 'unsafe-eval'; object-src 'none'; style-src 'self' 'nonce-%s'", nonce))
default:
ctx.Response.Header.Add("Content-Security-Policy", fmt.Sprintf("default-src 'self' ; object-src 'none'; style-src 'self' 'nonce-%s'", nonce))
}
err := tmpl.Execute(ctx.Response.BodyWriter(), struct{ Base, CSPNonce, RememberMe, ResetPassword, Session, Theme string }{Base: base, CSPNonce: nonce, RememberMe: rememberMe, ResetPassword: resetPassword, Session: session, Theme: theme})
if err != nil {
ctx.Error("an error occurred", 503)
logger.Errorf("Unable to execute template: %v", err)
return
}
}
}
func writeHealthCheckEnv(disabled bool, scheme, host, path string, port int) (err error) {
if disabled {
return nil
}
_, err = os.Stat("/app/healthcheck.sh")
if err != nil {
return nil
}
_, err = os.Stat("/app/.healthcheck.env")
if err != nil {
return nil
}
file, err := os.OpenFile("/app/.healthcheck.env", os.O_RDWR|os.O_CREATE|os.O_TRUNC, 0755)
if err != nil {
return err
}
defer func() {
_ = file.Close()
}()
if host == "0.0.0.0" {
host = "localhost"
}
_, err = file.WriteString(fmt.Sprintf(healthCheckEnv, scheme, host, port, path))
return err
}