json decode the directory content

* support google dns

* let's start 2.8.4

README.md

@@ -1,6 +1,6 @@
 # An ACME Shell script: acme.sh [![Build Status](https://travis-ci.org/Neilpang/acme.sh.svg?branch=master)](https://travis-ci.org/Neilpang/acme.sh)
 
-<img src="https://opencollective.com/acmesh/tiers/backers/badge.svg?label=backer&color=brightgreen" /> [![Join the chat at https://gitter.im/acme-sh/Lobby](https://badges.gitter.im/acme-sh/Lobby.svg)](https://gitter.im/acme-sh/Lobby?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
+<a href="https://opencollective.com/acmesh" alt="Financial Contributors on Open Collective"><img src="https://opencollective.com/acmesh/all/badge.svg?label=financial+contributors" /></a> [![Join the chat at https://gitter.im/acme-sh/Lobby](https://badges.gitter.im/acme-sh/Lobby.svg)](https://gitter.im/acme-sh/Lobby?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
 - An ACME protocol client written purely in Shell (Unix shell) language.
 - Full ACME protocol implementation.
 - Support ACME v1 and ACME v2
@@ -451,6 +451,36 @@ TODO:
 2. ACME protocol: https://github.com/ietf-wg-acme/acme
 
 
+## Contributors
+
+### Code Contributors
+
+This project exists thanks to all the people who contribute. [[Contribute](CONTRIBUTING.md)].
+<a href="https://github.com/Neilpang/acme.sh/graphs/contributors"><img src="https://opencollective.com/acmesh/contributors.svg?width=890&button=false" /></a>
+
+### Financial Contributors
+
+Become a financial contributor and help us sustain our community. [[Contribute](https://opencollective.com/acmesh/contribute)]
+
+#### Individuals
+
+<a href="https://opencollective.com/acmesh"><img src="https://opencollective.com/acmesh/individuals.svg?width=890"></a>
+
+#### Organizations
+
+Support this project with your organization. Your logo will show up here with a link to your website. [[Contribute](https://opencollective.com/acmesh/contribute)]
+
+<a href="https://opencollective.com/acmesh/organization/0/website"><img src="https://opencollective.com/acmesh/organization/0/avatar.svg"></a>
+<a href="https://opencollective.com/acmesh/organization/1/website"><img src="https://opencollective.com/acmesh/organization/1/avatar.svg"></a>
+<a href="https://opencollective.com/acmesh/organization/2/website"><img src="https://opencollective.com/acmesh/organization/2/avatar.svg"></a>
+<a href="https://opencollective.com/acmesh/organization/3/website"><img src="https://opencollective.com/acmesh/organization/3/avatar.svg"></a>
+<a href="https://opencollective.com/acmesh/organization/4/website"><img src="https://opencollective.com/acmesh/organization/4/avatar.svg"></a>
+<a href="https://opencollective.com/acmesh/organization/5/website"><img src="https://opencollective.com/acmesh/organization/5/avatar.svg"></a>
+<a href="https://opencollective.com/acmesh/organization/6/website"><img src="https://opencollective.com/acmesh/organization/6/avatar.svg"></a>
+<a href="https://opencollective.com/acmesh/organization/7/website"><img src="https://opencollective.com/acmesh/organization/7/avatar.svg"></a>
+<a href="https://opencollective.com/acmesh/organization/8/website"><img src="https://opencollective.com/acmesh/organization/8/avatar.svg"></a>
+<a href="https://opencollective.com/acmesh/organization/9/website"><img src="https://opencollective.com/acmesh/organization/9/avatar.svg"></a>
+
 # 19. License & Others
 
 License is GPLv3

acme.sh

@@ -1,6 +1,6 @@
 #!/usr/bin/env sh
 
-VER=2.8.3
+VER=2.8.4
 
 PROJECT_NAME="acme.sh"
 
@@ -90,6 +90,9 @@ DEBUG_LEVEL_3=3
 DEBUG_LEVEL_DEFAULT=$DEBUG_LEVEL_1
 DEBUG_LEVEL_NONE=0
 
+DOH_CLOUDFLARE=1
+DOH_GOOGLE=2
+
 HIDDEN_VALUE="[hidden](please add '--output-insecure' to see this value)"
 
 SYSLOG_ERROR="user.error"
@@ -811,6 +814,11 @@ _json_encode() {
   echo "$_j_str" | _hex_dump | _lower_case | sed 's/0a/5c 6e/g' | tr -d ' ' | _h2b | tr -d "\r\n"
 }
 
+#convert '\/' to '\'
+_json_decode() {
+  sed 's#\\/#/#g'
+}
+
 #options file
 _sed_i() {
   options="$1"
@@ -2392,7 +2400,7 @@ _initAPI() {
   _debug "_init api for server: $_api_server"
 
   if [ -z "$ACME_NEW_ACCOUNT" ]; then
-    response=$(_get "$_api_server")
+    response=$(_get "$_api_server" | _json_decode)
     if [ "$?" != "0" ]; then
       _debug2 "response" "$response"
       _err "Can not init api."
@@ -3636,7 +3644,7 @@ __trigger_validation() {
 }
 
 #endpoint  domain type
-_ns_lookup() {
+_ns_lookup_impl() {
   _ns_ep="$1"
   _ns_domain="$2"
   _ns_type="$3"
@@ -3660,7 +3668,7 @@ _ns_lookup_cf() {
   _cf_ld="$1"
   _cf_ld_type="$2"
   _cf_ep="https://cloudflare-dns.com/dns-query"
-  _ns_lookup "$_cf_ep" "$_cf_ld" "$_cf_ld_type"
+  _ns_lookup_impl "$_cf_ep" "$_cf_ld" "$_cf_ld_type"
 }
 
 #domain, type
@@ -3673,6 +3681,44 @@ _ns_purge_cf() {
   _debug2 response "$response"
 }
 
+#checks if cf server is available
+_ns_is_available_cf() {
+  if _get "https://cloudflare-dns.com"; then
+    return 0
+  else
+    return 1
+  fi
+}
+
+#domain, type
+_ns_lookup_google() {
+  _cf_ld="$1"
+  _cf_ld_type="$2"
+  _cf_ep="https://dns.google/resolve"
+  _ns_lookup_impl "$_cf_ep" "$_cf_ld" "$_cf_ld_type"
+}
+
+#domain, type
+_ns_lookup() {
+  if [ -z "$DOH_USE" ]; then
+    _debug "Detect dns server first."
+    if _ns_is_available_cf; then
+      _debug "Use cloudflare doh server"
+      export DOH_USE=$DOH_CLOUDFLARE
+    else
+      _debug "Use google doh server"
+      export DOH_USE=$DOH_GOOGLE
+    fi
+  fi
+
+  if [ "$DOH_USE" = "$DOH_CLOUDFLARE" ] || [ -z "$DOH_USE" ]; then
+    _ns_lookup_cf "$@"
+  else
+    _ns_lookup_google "$@"
+  fi
+
+}
+
 #txtdomain, alias, txt
 __check_txt() {
   _c_txtdomain="$1"
@@ -3681,7 +3727,7 @@ __check_txt() {
   _debug "_c_txtdomain" "$_c_txtdomain"
   _debug "_c_aliasdomain" "$_c_aliasdomain"
   _debug "_c_txt" "$_c_txt"
-  _answers="$(_ns_lookup_cf "$_c_aliasdomain" TXT)"
+  _answers="$(_ns_lookup "$_c_aliasdomain" TXT)"
   _contains "$_answers" "$_c_txt"
 
 }
@@ -3690,7 +3736,13 @@ __check_txt() {
 __purge_txt() {
   _p_txtdomain="$1"
   _debug _p_txtdomain "$_p_txtdomain"
-  _ns_purge_cf "$_p_txtdomain" "TXT"
+  if [ "$DOH_USE" = "$DOH_CLOUDFLARE" ] || [ -z "$DOH_USE" ]; then
+    _ns_purge_cf "$_p_txtdomain" "TXT"
+  else
+    _debug "no purge api for google dns api, just sleep 5 secs"
+    _sleep 5
+  fi
+
 }
 
 #wait and check each dns entries