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response.go
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response.go
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package handlers
import (
"fmt"
"net/url"
"time"
"github.com/valyala/fasthttp"
"github.com/authelia/authelia/v4/internal/authorization"
"github.com/authelia/authelia/v4/internal/middlewares"
"github.com/authelia/authelia/v4/internal/utils"
)
// handleOIDCWorkflowResponse handle the redirection upon authentication in the OIDC workflow.
func handleOIDCWorkflowResponse(ctx *middlewares.AutheliaCtx) {
userSession := ctx.GetSession()
if !authorization.IsAuthLevelSufficient(userSession.AuthenticationLevel, userSession.OIDCWorkflowSession.RequiredAuthorizationLevel) {
ctx.Logger.Warnf("OpenID Connect client '%s' requires 2FA, cannot be redirected yet", userSession.OIDCWorkflowSession.ClientID)
ctx.ReplyOK()
return
}
uri, err := ctx.ExternalRootURL()
if err != nil {
ctx.Logger.Errorf("Unable to determine external Base URL: %v", err)
respondUnauthorized(ctx, messageOperationFailed)
return
}
if isConsentMissing(
userSession.OIDCWorkflowSession,
userSession.OIDCWorkflowSession.RequestedScopes,
userSession.OIDCWorkflowSession.RequestedAudience) {
err = ctx.SetJSONBody(redirectResponse{Redirect: fmt.Sprintf("%s/consent", uri)})
if err != nil {
ctx.Logger.Errorf("Unable to set default redirection URL in body: %s", err)
}
} else {
err = ctx.SetJSONBody(redirectResponse{Redirect: userSession.OIDCWorkflowSession.AuthURI})
if err != nil {
ctx.Logger.Errorf("Unable to set default redirection URL in body: %s", err)
}
}
}
// Handle1FAResponse handle the redirection upon 1FA authentication.
func Handle1FAResponse(ctx *middlewares.AutheliaCtx, targetURI, requestMethod string, username string, groups []string) {
if targetURI == "" {
if !ctx.Providers.Authorizer.IsSecondFactorEnabled() && ctx.Configuration.DefaultRedirectionURL != "" {
err := ctx.SetJSONBody(redirectResponse{Redirect: ctx.Configuration.DefaultRedirectionURL})
if err != nil {
ctx.Logger.Errorf("Unable to set default redirection URL in body: %s", err)
}
} else {
ctx.ReplyOK()
}
return
}
targetURL, err := url.ParseRequestURI(targetURI)
if err != nil {
ctx.Error(fmt.Errorf("unable to parse target URL %s: %s", targetURI, err), messageAuthenticationFailed)
return
}
requiredLevel := ctx.Providers.Authorizer.GetRequiredLevel(
authorization.Subject{
Username: username,
Groups: groups,
IP: ctx.RemoteIP(),
},
authorization.NewObject(targetURL, requestMethod))
ctx.Logger.Debugf("Required level for the URL %s is %d", targetURI, requiredLevel)
if requiredLevel == authorization.TwoFactor {
ctx.Logger.Warnf("%s requires 2FA, cannot be redirected yet", targetURI)
ctx.ReplyOK()
return
}
safeRedirection := utils.IsRedirectionSafe(*targetURL, ctx.Configuration.Session.Domain)
if !safeRedirection {
ctx.Logger.Debugf("Redirection URL %s is not safe", targetURI)
if !ctx.Providers.Authorizer.IsSecondFactorEnabled() && ctx.Configuration.DefaultRedirectionURL != "" {
err := ctx.SetJSONBody(redirectResponse{Redirect: ctx.Configuration.DefaultRedirectionURL})
if err != nil {
ctx.Logger.Errorf("Unable to set default redirection URL in body: %s", err)
}
} else {
ctx.ReplyOK()
}
return
}
ctx.Logger.Debugf("Redirection URL %s is safe", targetURI)
err = ctx.SetJSONBody(redirectResponse{Redirect: targetURI})
if err != nil {
ctx.Logger.Errorf("Unable to set redirection URL in body: %s", err)
}
}
// Handle2FAResponse handle the redirection upon 2FA authentication.
func Handle2FAResponse(ctx *middlewares.AutheliaCtx, targetURI string) {
if targetURI == "" {
if ctx.Configuration.DefaultRedirectionURL != "" {
err := ctx.SetJSONBody(redirectResponse{Redirect: ctx.Configuration.DefaultRedirectionURL})
if err != nil {
ctx.Logger.Errorf("Unable to set default redirection URL in body: %s", err)
}
} else {
ctx.ReplyOK()
}
return
}
safe, err := utils.IsRedirectionURISafe(targetURI, ctx.Configuration.Session.Domain)
if err != nil {
ctx.Error(fmt.Errorf("unable to check target URL: %s", err), messageMFAValidationFailed)
return
}
if safe {
ctx.Logger.Debugf("Redirection URL %s is safe", targetURI)
err := ctx.SetJSONBody(redirectResponse{Redirect: targetURI})
if err != nil {
ctx.Logger.Errorf("Unable to set redirection URL in body: %s", err)
}
} else {
ctx.ReplyOK()
}
}
func markAuthenticationAttempt(ctx *middlewares.AutheliaCtx, successful bool, bannedUntil *time.Time, username string, authType string, errAuth error) (err error) {
// We only Mark if there was no underlying error.
ctx.Logger.Debugf("Mark %s authentication attempt made by user '%s'", authType, username)
var (
requestURI, requestMethod string
)
referer := ctx.Request.Header.Referer()
if referer != nil {
refererURL, err := url.Parse(string(referer))
if err == nil {
requestURI = refererURL.Query().Get("rd")
requestMethod = refererURL.Query().Get("rm")
}
}
if err = ctx.Providers.Regulator.Mark(ctx, successful, bannedUntil != nil, username, requestURI, requestMethod, authType, ctx.RemoteIP()); err != nil {
ctx.Logger.Errorf("Unable to mark %s authentication attempt by user '%s': %+v", authType, username, err)
return err
}
if successful {
ctx.Logger.Debugf("Successful %s authentication attempt made by user '%s'", authType, username)
} else {
switch {
case errAuth != nil:
ctx.Logger.Errorf("Unsuccessful %s authentication attempt by user '%s': %+v", authType, username, errAuth)
case bannedUntil != nil:
ctx.Logger.Errorf("Unsuccessful %s authentication attempt by user '%s' and they are banned until %s", authType, username, bannedUntil)
default:
ctx.Logger.Errorf("Unsuccessful %s authentication attempt by user '%s'", authType, username)
}
}
return nil
}
func respondUnauthorized(ctx *middlewares.AutheliaCtx, message string) {
ctx.SetStatusCode(fasthttp.StatusUnauthorized)
ctx.SetJSONError(message)
}