From 0c0d57a545045b8a88f0a07e04050119a777b9f9 Mon Sep 17 00:00:00 2001
From: Pavel Forkert <fxposter@gmail.com>
Date: Sun, 19 Feb 2017 06:30:33 +0200
Subject: [PATCH] Log authorization urls (#350)

https://letsencrypt.org/docs/rate-limits/ says:
> The pending authorization objects are represented by URLs of the form https://acme-v01.api.letsencrypt.org/acme/authz/XYZ, and should show up in your client logs.
---
 acme/client.go | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/acme/client.go b/acme/client.go
index 9afebf11..ba56e796 100644
--- a/acme/client.go
+++ b/acme/client.go
@@ -561,12 +561,20 @@ func (c *Client) getChallenges(domains []string) ([]authorizationResource, map[s
 		}
 	}
 
+	logAuthz(challenges)
+
 	close(resc)
 	close(errc)
 
 	return challenges, failures
 }
 
+func logAuthz(authz []authorizationResource) {
+	for _, auth := range authz {
+		logf("[INFO][%s] AuthURL: %s", auth.Domain, auth.AuthURL)
+	}
+}
+
 func (c *Client) requestCertificate(authz []authorizationResource, bundle bool, privKey crypto.PrivateKey, mustStaple bool) (CertificateResource, error) {
 	if len(authz) == 0 {
 		return CertificateResource{}, errors.New("Passed no authorizations to requestCertificate!")