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package handlers
import (
"fmt"
"net/url"
"github.com/authelia/authelia/internal/authentication"
"github.com/authelia/authelia/internal/duo"
"github.com/authelia/authelia/internal/middlewares"
)
// SecondFactorDuoPost handler for sending a push notification via duo api.
func SecondFactorDuoPost(duoAPI duo.API) middlewares.RequestHandler {
return func(ctx *middlewares.AutheliaCtx) {
var requestBody signDuoRequestBody
err := ctx.ParseBody(&requestBody)
if err != nil {
ctx.Error(err, mfaValidationFailedMessage)
return
}
userSession := ctx.GetSession()
remoteIP := ctx.RemoteIP().String()
ctx.Logger.Debugf("Starting Duo Push Auth Attempt for %s from IP %s", userSession.Username, remoteIP)
values := url.Values{}
// { username, ipaddr: clientIP, factor: "push", device: "auto", pushinfo: `target%20url=${targetURL}`}
values.Set("username", userSession.Username)
values.Set("ipaddr", remoteIP)
values.Set("factor", "push")
values.Set("device", "auto")
if requestBody.TargetURL != "" {
values.Set("pushinfo", fmt.Sprintf("target%%20url=%s", requestBody.TargetURL))
}
duoResponse, err := duoAPI.Call(values, ctx)
if err != nil {
ctx.Error(fmt.Errorf("Duo API errored: %s", err), mfaValidationFailedMessage)
return
}
if duoResponse.Stat == "FAIL" {
if duoResponse.Code == 40002 {
ctx.Logger.Warnf("Duo Push Auth failed to process the auth request for %s from %s: %s (%s), error code %d. "+
"This error often occurs if you've not setup the username in the Admin Dashboard.",
userSession.Username, remoteIP, duoResponse.Message, duoResponse.MessageDetail, duoResponse.Code)
} else {
ctx.Logger.Warnf("Duo Push Auth failed to process the auth request for %s from %s: %s (%s), error code %d.",
userSession.Username, remoteIP, duoResponse.Message, duoResponse.MessageDetail, duoResponse.Code)
}
}
if duoResponse.Response.Result != testResultAllow {
ctx.ReplyUnauthorized()
return
}
err = ctx.Providers.SessionProvider.RegenerateSession(ctx.RequestCtx)
if err != nil {
ctx.Error(fmt.Errorf("Unable to regenerate session for user %s: %s", userSession.Username, err), authenticationFailedMessage)
return
}
userSession.AuthenticationLevel = authentication.TwoFactor
err = ctx.SaveSession(userSession)
if err != nil {
ctx.Error(fmt.Errorf("Unable to update authentication level with Duo: %s", err), mfaValidationFailedMessage)
return
}
Handle2FAResponse(ctx, requestBody.TargetURL)
}
}
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