From bbea34a602ca0d43626e318cc3d41d5008100632 Mon Sep 17 00:00:00 2001
From: Huizerd <15855769+Huizerd@users.noreply.github.com>
Date: Wed, 16 Sep 2020 10:26:49 +0200
Subject: [PATCH 1/2] Namecheap dynamic DNS client

Signed-off-by: Huizerd <15855769+Huizerd@users.noreply.github.com>
---
 README.md                          |  1 +
 bin/ncp/NETWORKING/namecheapDNS.sh | 75 ++++++++++++++++++++++++++++++
 etc/ncp-config.d/namecheapDNS.cfg  | 46 ++++++++++++++++++
 i18n/README-zh_TW.md               |  1 +
 4 files changed, 123 insertions(+)
 create mode 100644 bin/ncp/NETWORKING/namecheapDNS.sh
 create mode 100644 etc/ncp-config.d/namecheapDNS.cfg

diff --git a/README.md b/README.md
index d6aa46470..a4b590290 100644
--- a/README.md
+++ b/README.md
@@ -46,6 +46,7 @@ Find the full documentation at [docs.nextcloudpi.com](http://docs.nextcloudpi.co
  * Dynamic DNS support for freeDNS
  * Dynamic DNS support for duckDNS
  * Dynamic DNS support for spDYN
+ * Dynamic DNS support for Namecheap
  * dnsmasq DNS server with DNS cache
  * ModSecurity Web Application Firewall
  * NFS ready to mount your files over LAN
diff --git a/bin/ncp/NETWORKING/namecheapDNS.sh b/bin/ncp/NETWORKING/namecheapDNS.sh
new file mode 100644
index 000000000..a8cca3908
--- /dev/null
+++ b/bin/ncp/NETWORKING/namecheapDNS.sh
@@ -0,0 +1,75 @@
+#!/bin/bash
+
+# Namecheap DNS updater client installation on Raspbian 
+#
+# Copyleft 2020 by ndunks and Huizerd
+# GPL licensed (see end of file) * Use at your own risk!
+#
+# Based on:
+# - https://gist.github.com/ndunks/c756030c0757b667c9a478c97ca5a9b7
+# - https://www.namecheap.com/support/knowledgebase/article.aspx/29/11/how-do-i-use-a-browser-to-dynamically-update-the-hosts-ip
+#
+# Further steps to be taken:
+# - Buying a Namecheap domain
+# - https://www.namecheap.com/support/knowledgebase/article.aspx/595/11/how-do-i-enable-dynamic-dns-for-a-domain/
+# - https://www.namecheap.com/support/knowledgebase/article.aspx/43/11/how-do-i-set-up-a-host-for-dynamic-dns
+
+
+install()
+{
+  apt-get update
+  apt-get install --no-install-recommends -y dnsutils
+}
+
+configure() 
+{
+  local updateurl=https://dynamicdns.park-your-domain.com/update
+  local url="${updateurl}?host=${HOST}&domain=${DOMAIN}&password=${PASSWORD}"
+
+  [[ $ACTIVE != "yes" ]] && { 
+    rm -f /etc/cron.d/namecheapDNS
+    service cron restart
+    echo "Namecheap DNS client is disabled"
+    return 0
+  }
+
+  cat > /usr/local/bin/namecheapdns.sh <<EOF
+#!/bin/bash
+echo "Namecheap DNS client started"
+registeredIP=\$(dig +short "$FULLDOMAIN"|tail -n1)
+currentIP=\$(wget -q -O - http://checkip.dyndns.org|sed s/[^0-9.]//g)
+echo "${url}&ip=${currentIP}"
+    [ "\$currentIP" != "\$registeredIP" ] && {
+        wget -q -O /dev/null "${url}&ip=${currentIP}"
+  }
+echo "Registered IP: \$registeredIP | Current IP: \$currentIP"
+EOF
+  chmod +744 /usr/local/bin/namecheapdns.sh
+
+  echo "*/${UPDATEINTERVAL}  *  *  *  *  root  /bin/bash /usr/local/bin/namecheapdns.sh" > /etc/cron.d/namecheapDNS
+  chmod 644 /etc/cron.d/namecheapDNS
+  service cron restart
+
+  cd /var/www/nextcloud
+  sudo -u www-data php occ config:system:set trusted_domains 3 --value="$FULLDOMAIN"
+  sudo -u www-data php occ config:system:set overwrite.cli.url --value=https://"$FULLDOMAIN"/
+
+  echo "Namecheap DNS client is enabled"
+}
+
+# License
+#
+# This script is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This script is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this script; if not, write to the
+# Free Software Foundation, Inc., 59 Temple Place, Suite 330,
+# Boston, MA  02111-1307  USA
diff --git a/etc/ncp-config.d/namecheapDNS.cfg b/etc/ncp-config.d/namecheapDNS.cfg
new file mode 100644
index 000000000..12d8dd67c
--- /dev/null
+++ b/etc/ncp-config.d/namecheapDNS.cfg
@@ -0,0 +1,46 @@
+{
+  "id": "namecheapDNS",
+  "name": "Dynamic DNS from Namecheap",
+  "title": "namecheapDNS",
+  "description": "Namecheap Dynamic DNS service (need domain from https://www.namecheap.com/)",
+  "info": "First, complete these steps: https://www.namecheap.com/support/knowledgebase/article.aspx/595/11/how-do-i-enable-dynamic-dns-for-a-domain/ and https://www.namecheap.com/support/knowledgebase/article.aspx/43/11/how-do-i-set-up-a-host-for-dynamic-dns",
+  "infotitle": "",
+  "params": [
+    {
+      "id": "ACTIVE",
+      "name": "Active",
+      "value": "no",
+      "type": "bool"
+    },
+    {
+      "id": "PASSWORD",
+      "name": "Dynamic DNS password",
+      "value": "",
+      "suggest": "840deed9ef1844eca7c198df2d31bf10"
+    },
+    {
+      "id": "FULLDOMAIN",
+      "name": "Full domain name ('host.domain' if host is not '@', else domain)",
+      "value": "",
+      "suggest": "mynextcloud.example.com"
+    },
+    {
+      "id": "HOST",
+      "name": "Host name (enter '@' if you only want 'example.com')",
+      "value": "",
+      "suggest": "mynextcloud"
+    },
+    {
+      "id": "DOMAIN",
+      "name": "Domain name",
+      "value": "",
+      "suggest": "example.com"
+    },
+    {
+      "id": "UPDATEINTERVAL",
+      "name": "Update periodicity (in minutes)",
+      "value": "30",
+      "suggest": "30"
+    }
+  ]
+}
diff --git a/i18n/README-zh_TW.md b/i18n/README-zh_TW.md
index 189f4c1f7..f906f2d61 100644
--- a/i18n/README-zh_TW.md
+++ b/i18n/README-zh_TW.md
@@ -51,6 +51,7 @@ NextCloudPi 是專門為 Raspberry Pi、Odroid HC1、rock64 以及其它單板
  * 可使用freeDNS 所提供的浮動IP連結功能
  * 可使用duckDNS 所提供的浮動IP連結功能
  * 可使用spDYN 所提供的浮動IP連結功能
+ * 可使用Namecheap DNS 所提供的浮動IP連結功能
  * 內建 dnsmasq DNS 伺服器快取
  * ModSecurity 網路應用程式防火牆
  * NFS ready to mount your files over LAN

From 01907b5db798629ba74c213ff97eca7aae01e9a9 Mon Sep 17 00:00:00 2001
From: Huizerd <15855769+Huizerd@users.noreply.github.com>
Date: Thu, 11 Mar 2021 08:22:28 +0100
Subject: [PATCH 2/2] systemctl cron

Signed-off-by: Huizerd <15855769+Huizerd@users.noreply.github.com>
---
 bin/ncp/NETWORKING/namecheapDNS.sh | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/bin/ncp/NETWORKING/namecheapDNS.sh b/bin/ncp/NETWORKING/namecheapDNS.sh
index a8cca3908..d92674335 100644
--- a/bin/ncp/NETWORKING/namecheapDNS.sh
+++ b/bin/ncp/NETWORKING/namecheapDNS.sh
@@ -28,7 +28,7 @@ configure()
 
   [[ $ACTIVE != "yes" ]] && { 
     rm -f /etc/cron.d/namecheapDNS
-    service cron restart
+    systemctl restart cron
     echo "Namecheap DNS client is disabled"
     return 0
   }
@@ -48,7 +48,7 @@ EOF
 
   echo "*/${UPDATEINTERVAL}  *  *  *  *  root  /bin/bash /usr/local/bin/namecheapdns.sh" > /etc/cron.d/namecheapDNS
   chmod 644 /etc/cron.d/namecheapDNS
-  service cron restart
+  systemctl restart cron
 
   cd /var/www/nextcloud
   sudo -u www-data php occ config:system:set trusted_domains 3 --value="$FULLDOMAIN"