mirror of
https://github.com/0rangebananaspy/authelia.git
synced 2024-09-14 22:47:21 +07:00
7efcac6017
This adjusts the session ID generator making it use it's own random function rather than using one from the utils lib. This allows us to utilize crypto/rand or math/rand interchangeably. Additionally refactor the utils.RandomString func.
116 lines
3.2 KiB
Go
116 lines
3.2 KiB
Go
package server
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import (
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"fmt"
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"io/ioutil"
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"os"
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"path/filepath"
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"text/template"
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"github.com/valyala/fasthttp"
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"github.com/authelia/authelia/v4/internal/logging"
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"github.com/authelia/authelia/v4/internal/utils"
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)
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// ServeTemplatedFile serves a templated version of a specified file,
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// this is utilised to pass information between the backend and frontend
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// and generate a nonce to support a restrictive CSP while using material-ui.
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func ServeTemplatedFile(publicDir, file, rememberMe, resetPassword, session, theme string, https bool) fasthttp.RequestHandler {
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logger := logging.Logger()
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f, err := assets.Open(publicDir + file)
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if err != nil {
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logger.Fatalf("Unable to open %s: %s", file, err)
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}
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b, err := ioutil.ReadAll(f)
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if err != nil {
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logger.Fatalf("Unable to read %s: %s", file, err)
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}
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tmpl, err := template.New("file").Parse(string(b))
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if err != nil {
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logger.Fatalf("Unable to parse %s template: %s", file, err)
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}
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return func(ctx *fasthttp.RequestCtx) {
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base := ""
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if baseURL := ctx.UserValue("base_url"); baseURL != nil {
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base = baseURL.(string)
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}
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var scheme = "https"
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if !https {
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proto := string(ctx.Request.Header.Peek(fasthttp.HeaderXForwardedProto))
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switch proto {
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case "":
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scheme = "http"
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default:
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scheme = proto
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}
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}
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baseURL := scheme + "://" + string(ctx.Request.Host()) + base + "/"
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nonce := utils.RandomString(32, utils.AlphaNumericCharacters, true)
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switch extension := filepath.Ext(file); extension {
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case ".html":
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ctx.SetContentType("text/html; charset=utf-8")
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default:
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ctx.SetContentType("text/plain; charset=utf-8")
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}
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switch {
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case publicDir == swaggerAssets:
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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))
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case os.Getenv("ENVIRONMENT") == dev:
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ctx.Response.Header.Add("Content-Security-Policy", fmt.Sprintf("default-src 'self' 'unsafe-eval'; object-src 'none'; style-src 'self' 'nonce-%s'", nonce))
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default:
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ctx.Response.Header.Add("Content-Security-Policy", fmt.Sprintf("default-src 'self' ; object-src 'none'; style-src 'self' 'nonce-%s'", nonce))
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}
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err := tmpl.Execute(ctx.Response.BodyWriter(), struct{ Base, BaseURL, CSPNonce, RememberMe, ResetPassword, Session, Theme string }{Base: base, BaseURL: baseURL, CSPNonce: nonce, RememberMe: rememberMe, ResetPassword: resetPassword, Session: session, Theme: theme})
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if err != nil {
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ctx.Error("an error occurred", 503)
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logger.Errorf("Unable to execute template: %v", err)
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return
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}
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}
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}
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func writeHealthCheckEnv(disabled bool, scheme, host, path string, port int) (err error) {
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if disabled {
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return nil
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}
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_, err = os.Stat("/app/healthcheck.sh")
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if err != nil {
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return nil
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}
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_, err = os.Stat("/app/.healthcheck.env")
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if err != nil {
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return nil
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}
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file, err := os.OpenFile("/app/.healthcheck.env", os.O_RDWR|os.O_CREATE|os.O_TRUNC, 0755)
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if err != nil {
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return err
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}
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defer func() {
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_ = file.Close()
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}()
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if host == "0.0.0.0" {
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host = "localhost"
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}
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_, err = file.WriteString(fmt.Sprintf(healthCheckEnv, scheme, host, port, path))
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return err
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}
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