From 84f27f280ef8dc51065b1e4c1b668b57e10fb77f Mon Sep 17 00:00:00 2001
From: nachoparker <nacho@ownyourbits.com>
Date: Mon, 12 Mar 2018 10:14:33 +0100
Subject: added nc-snapshot-sync

---
 changelog.md                                 |  8 ++-
 etc/nextcloudpi-config.d/nc-snapshot-sync.sh | 84 ++++++++++++++++++++++++++++
 etc/nextcloudpi-config.d/nc-snapshot.sh      |  1 +
 ncp-web/ncp-launcher.php                     |  2 +-
 4 files changed, 92 insertions(+), 3 deletions(-)
 create mode 100644 etc/nextcloudpi-config.d/nc-snapshot-sync.sh

diff --git a/changelog.md b/changelog.md
index 43ce79ee..04de414b 100644
--- a/changelog.md
+++ b/changelog.md
@@ -1,7 +1,11 @@
 
-[v0.47.3](https://github.com/nextcloud/nextcloudpi/commit/4156bb7) (2018-03-16) fix for nc-automount-links
+[v0.50.0](https://github.com/nextcloud/nextcloudpi/commit/1937d28) (2018-03-12) added nc-snapshot-sync
 
-[v0.47.2](https://github.com/nextcloud/nextcloudpi/commit/66cb00a) (2018-03-15) improve dependency of database with automount
+[v0.47.4 ](https://github.com/nextcloud/nextcloudpi/commit/5e9cb51) (2018-03-14) Add template generation functionality to L10N.php (activate by setting constant GENERATE_TEMPLATES to true).
+
+[v0.47.3](https://github.com/nextcloud/nextcloudpi/commit/fd9fc8c) (2018-03-16) fix for nc-automount-links
+
+[v0.47.2 ](https://github.com/nextcloud/nextcloudpi/commit/66cb00a) (2018-03-15) improve dependency of database with automount
 
 [v0.47.1 ](https://github.com/nextcloud/nextcloudpi/commit/9f6c479) (2018-03-10) update: make sure redis log exists
 
diff --git a/etc/nextcloudpi-config.d/nc-snapshot-sync.sh b/etc/nextcloudpi-config.d/nc-snapshot-sync.sh
new file mode 100644
index 00000000..9f992f6a
--- /dev/null
+++ b/etc/nextcloudpi-config.d/nc-snapshot-sync.sh
@@ -0,0 +1,84 @@
+#!/bin/bash
+
+# Sync Nextcloud BTRFS snapshots
+#
+# Copyleft 2017 by Ignacio Nunez Hernanz <nacho _a_t_ ownyourbits _d_o_t_ com>
+# GPL licensed (see end of file) * Use at your own risk!
+#
+# Usage:
+# 
+#   ./installer.sh nc-snapshot-sync.sh <IP> (<img>)
+#
+# See installer.sh instructions for details
+#
+# More at https://ownyourbits.com/2017/02/13/nextcloud-ready-raspberry-pi-image/
+#
+
+ACTIVE_=no
+SNAPDIR_=/media/USBdrive/ncp-snapshots
+DESTINATION_=/media/myBackupDrive/ncp-snapshots
+COMPRESSION_=no
+SYNCDAYS_=1
+DESCRIPTION="Sync BTRFS snapshots to USBdrive or remote machine"
+
+INFO="Use format user@ip:/path/to/snapshots for remote sync
+'user' needs permissions for the 'btrfs' command at 'ip'
+'user' needs SSH autologin from the NCP 'root' user at 'ip'
+Only use compression for internet transfer, because it uses many resources"
+
+install()
+{
+  apt-get update
+  apt-get install -y --no-install-recommends pv
+  wget https://raw.githubusercontent.com/nachoparker/btrfs-sync/master/btrfs-sync -O /usr/local/bin/btrfs-sync
+  chmod +x /usr/local/bin/btrfs-sync
+  ssh-keygen -N "" -f /root/.ssh/id_rsa 
+}
+
+configure()
+{
+  [[ $ACTIVE_ != "yes" ]] && { 
+    rm /etc/cron.d/ncp-snapsync-auto
+    service cron restart
+    echo "snapshot sync disabled"
+    return 0
+  }
+
+  # checks
+  [[ -d "$SNAPDIR_" ]] || { echo "$SNAPDIR_ does not exist"; return 1; }
+
+  [[ "$DESTINATION_" =~ : ]] && {
+    local NET="$( sed 's|:.*||' <<<"$DESTINATION_" )"
+    local DST="$( sed 's|.*:||' <<<"$DESTINATION_" )"
+    local SSH=( ssh -o "BatchMode=yes" "$NET" )
+    ${SSH[@]} : || { echo "SSH non-interactive not properly configured"; return 1; }
+  } || DST="$DESTINATION_"
+  [[ "$( ${SSH[@]} stat -fc%T "$DST" )" != "btrfs" ]] && {
+    echo "$DESTINATION_ is not in a BTRFS filesystem"
+    return 1
+  }
+
+  [[ "$COMPRESSION_" == "yes" ]] && ZIP="-z"
+
+  echo "30  4  */${SYNCDAYS_}  *  *  root  /usr/local/bin/btrfs-sync -qd $ZIP \"$SNAPDIR_\" \"$DESTINATION_\"" > /etc/cron.d/ncp-snapsync-auto
+  service cron restart
+  echo "snapshot sync 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/nextcloudpi-config.d/nc-snapshot.sh b/etc/nextcloudpi-config.d/nc-snapshot.sh
index 00a39ce3..9059ac7c 100644
--- a/etc/nextcloudpi-config.d/nc-snapshot.sh
+++ b/etc/nextcloudpi-config.d/nc-snapshot.sh
@@ -1,4 +1,5 @@
 #!/bin/bash
+
 # Nextcloud BTRFS snapshots
 #
 # Copyleft 2017 by Ignacio Nunez Hernanz <nacho _a_t_ ownyourbits _d_o_t_ com>
diff --git a/ncp-web/ncp-launcher.php b/ncp-web/ncp-launcher.php
index f0bb591d..829c39ef 100644
--- a/ncp-web/ncp-launcher.php
+++ b/ncp-web/ncp-launcher.php
@@ -118,7 +118,7 @@ else if ( $_POST['action'] == "launch" && $_POST['config'] )
       {
         $value = "[". join(",", $value) ."]";
       }
-      preg_match( '/^[\[\]\w.,@_\/-]+$/' , $value , $matches )
+      preg_match( '/^[\[\]\w.,@_\/-:]+$/' , $value , $matches )
         or exit( '{ "output": "Invalid input" , "token": "' . getCSRFToken() . '" }' );
       $code = preg_replace( '/\n' . $name . '_=.*' . PHP_EOL . '/'  ,
                           PHP_EOL . $name . '_=' . $value . PHP_EOL ,
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