From e51f9d89dc6d9726cd4caa4f3ec1bf478f0e849c Mon Sep 17 00:00:00 2001
From: Philippe Pittoli <philippe.pittoli@etu.unistra.fr>
Date: Sat, 25 Jan 2014 18:49:58 +0100
Subject: [PATCH] exemples (ssh, scp) + tout se fait via ssh (prog
 externalisable)

---
 app/app.pm                 | 32 +++++++++++++----
 app/zone/edit.pm           | 71 +++++++++++++++++++++++++++++++-------
 app/zone/rndc_interface.pm |  1 -
 t/config.ini               |  2 ++
 t/initco.pm                | 20 +++++------
 t/scp.pl                   | 16 +++++++++
 t/ssh.pl                   | 26 ++++++++++++++
 www/conf/config.ini        |  3 ++
 www/lib/DNSManager.pm      | 25 +++++++-------
 9 files changed, 153 insertions(+), 43 deletions(-)
 create mode 100755 t/scp.pl
 create mode 100644 t/ssh.pl

diff --git a/app/app.pm b/app/app.pm
index 2790e7d..a048268 100644
--- a/app/app.pm
+++ b/app/app.pm
@@ -17,7 +17,7 @@ use Moose;
 has dbh => ( is => 'rw', builder => '_void');
 has dnsi => ( is => 'rw', builder => '_void');
 has um => ( is => 'rw', builder => '_void');
-has [ qw/zdir dbname dbhost dbport dbuser dbpass sgbd dnsapp/ ] => qw/is ro required 1/;
+has [ qw/zdir dbname dbhost dbport dbuser dbpass sgbd dnsapp sshhost sshuser/ ] => qw/is ro required 1/;
 sub _void { my $x = ''; \$x; }
 
 ### users
@@ -91,7 +91,10 @@ sub add_domain {
         return 0;
     }
 
-    my $ze = app::zone::edit->new(zname => $domain, zdir => $self->zdir);
+    my $ze = app::zone::edit->new(zname => $domain
+        , zdir => $self->zdir
+        , host => $self->sshhost
+        , user => $self->sshuser );
     $ze->addzone();
 }
 
@@ -103,7 +106,10 @@ sub delete_domain {
     return 0 unless $success;
     return 0 unless $user->delete_domain($domain);
 
-    my $ze = app::zone::edit->new(zname => $domain, zdir => $self->zdir);
+    my $ze = app::zone::edit->new(zname => $domain
+        , zdir => $self->zdir
+        , host => $self->sshhost
+        , user => $self->sshuser );
     $ze->del();
 
     1;
@@ -111,19 +117,28 @@ sub delete_domain {
 
 sub update_domain_raw {
     my ($self, $login, $zone, $domain) = @_; 
-    my $ze = app::zone::edit->new(zname => $domain, zdir => $self->zdir);
+    my $ze = app::zone::edit->new(zname => $domain
+        , zdir => $self->zdir
+        , host => $self->sshhost
+        , user => $self->sshuser );
     $ze->update_raw($zone);
 }
 
 sub update_domain {
     my ($self, $login, $zone, $domain) = @_; 
-    my $ze = app::zone::edit->new(zname => $domain, zdir => $self->zdir);
+    my $ze = app::zone::edit->new(zname => $domain
+        , zdir => $self->zdir
+        , host => $self->sshhost
+        , user => $self->sshuser );
     $ze->update($zone);
 }
 
 sub get_domain {
     my ($self, $login, $domain) = @_; 
-    my $ze = app::zone::edit->new(zname => $domain, zdir => $self->zdir);
+    my $ze = app::zone::edit->new(zname => $domain
+        , zdir => $self->zdir
+        , host => $self->sshhost
+        , user => $self->sshuser );
     $ze->get();
 }
 
@@ -146,7 +161,10 @@ sub get_all_users {
 
 sub new_tmp {
     my ($self, $login, $domain) = @_; 
-    my $ze = app::zone::edit->new(zname => $domain, zdir => $self->zdir);
+    my $ze = app::zone::edit->new(zname => $domain
+        , zdir => $self->zdir
+        , host => $self->sshhost
+        , user => $self->sshuser );
     $ze->new_tmp();
 }
 
diff --git a/app/zone/edit.pm b/app/zone/edit.pm
index dd20c91..0d619d0 100644
--- a/app/zone/edit.pm
+++ b/app/zone/edit.pm
@@ -2,6 +2,8 @@ use Modern::Perl;
 use Data::Dump "dump";
 use DNS::ZoneParse;
 use File::Copy;
+use Net::SCP;
+use Net::SSH2;
 use v5.14;
 
 use lib '../../';
@@ -9,12 +11,15 @@ use app::zone::rndc_interface;
 package app::zone::edit;
 use Moose;
 
-has [ qw/zname zdir/ ] => qw/is ro required 1/;
+has [ qw/zname zdir host user/ ] => qw/is ro required 1/;
 
 sub get {
     my ($self) = @_;
+    my $dest = '/tmp/' . $self->zname;
     my $file = $self->zdir.'/'.$self->zname;
-    return DNS::ZoneParse->new($file, $self->zname);
+
+    $self->_scp_get($file, $dest);
+    DNS::ZoneParse->new($dest, $self->zname);
 }
 
 =pod
@@ -28,19 +33,24 @@ sub addzone {
     my ($self) = @_;
 
     my $tpl = $self->zdir."/tpl.zone";
-    my $file = $self->zdir.'/'.$self->zname;
+    my $tmpfile = '/tmp/'.$self->zname;
 
-    $self->_cp($tpl, $file);
+    $self->_scp_get($tpl, $tmpfile); # get the template
+    $self->_sed($tmpfile); # sed CHANGEMEORIGIN by the real origin
 
-    my $zonefile = DNS::ZoneParse->new($file, $self->zname);
+    my $zonefile = DNS::ZoneParse->new($tmpfile, $self->zname);
     $zonefile->new_serial(); # update the serial number
 
-    # write the new zone file to disk 
+    # write the new zone tmpfile to disk 
     my $newzone;
-    open($newzone, '>', $file) or die "error";
+    open($newzone, '>', $tmpfile) or die "error";
     print $newzone $zonefile->output();
     close $newzone;
 
+    my $file = $self->zdir.'/'.$self->zname;
+    $self->_scp_put($tmpfile, $file); # put the final zone on the server
+    unlink($tmpfile); # del the temporary file
+
     my $rndc = app::zone::rndc_interface->new();
     $rndc->addzone($self->zdir, $self->zname);
 
@@ -58,16 +68,21 @@ sub update {
     # update the serial number
     $zonefile->new_serial();
 
-    my $file = $self->zdir.'/'.$self->zname;
+    my $tmpfile = '/tmp/' . $self->zname;
 
-    # write the new zone file to disk 
+    # write the new zone tmpfile to disk 
     my $newzone;
-    open($newzone, '>', $file) or die "error";
+    open($newzone, '>', $tmpfile) or die "error";
     print $newzone $zonefile->output();
     close $newzone;
 
+    my $file = $self->zdir.'/'.$self->zname;
+    $self->_scp_put($tmpfile, $file); # put the final zone on the server
+    unlink($tmpfile); # del the temporary file
+
     my $rndc = app::zone::rndc_interface->new();
     $rndc->reload($self->zname);
+    1;
 }
 
 =pod
@@ -96,7 +111,6 @@ sub update_raw {
     unlink($file);
 
     $self->update($zonefile);
-    1;
 }
 
 # sera utile plus tard, pour l'interface
@@ -106,7 +120,9 @@ sub new_tmp {
     my $tpl = $self->zdir."/tpl.zone";
     my $file = '/tmp/'.$self->zname;
 
-    $self->_cp($tpl, $file);
+    $self->_scp($tpl, $file);
+    $self->_sed($file);
+
     my $zonefile = DNS::ZoneParse->new($file, $self->zname);
     $zonefile->new_serial(); # update the serial number
 
@@ -119,9 +135,27 @@ sub _cp {
     my ($self, $src, $dest) = @_;
 
     File::Copy::copy($src, $dest) or die "Copy failed: $! ($src -> $dest)";
+}
 
+sub _scp_put {
+    my ($self, $src, $dest) = @_;
+
+    my $scp = Net::SCP->new( { host => $self->host, user => $self->user } );
+    $scp->put($src, $dest) or die $scp->{errstr};
+}
+
+sub _scp_get {
+    my ($self, $src, $dest) = @_;
+
+    my $scp = Net::SCP->new( { host => $self->host, user => $self->user } );
+    $scp->get($src, $dest) or die $scp->{errstr};
+}
+
+sub _sed {
+    my ($self, $file) = @_;
     my $orig = $self->zname;
-    my $cmd = qq[sed -i "s/CHANGEMEORIGIN/$orig/" $dest 2>/dev/null 1>/dev/null];
+    my $cmd = qq[sed -i "s/CHANGEMEORIGIN/$orig/" $file 2>/dev/null 1>/dev/null];
+
     system($cmd);
 }
 
@@ -130,6 +164,17 @@ sub del {
     my $rndc = app::zone::rndc_interface->new();
     $rndc->delzone($self->zdir, $self->zname);
     $rndc->reconfig();
+
+    my $ssh = Net::SSH2->new();
+
+    $ssh->connect($self->host);
+    $ssh->auth( username => $self->user);
+
+    my $chan = $ssh->channel();
+    my $file = $self->zdir.'/'.$self->zname;
+    $chan->exec( "rm $file" );
+    $ssh->disconnect();
+    1;
 }
 
 1;
diff --git a/app/zone/rndc_interface.pm b/app/zone/rndc_interface.pm
index 33d8556..9bc17d6 100644
--- a/app/zone/rndc_interface.pm
+++ b/app/zone/rndc_interface.pm
@@ -33,7 +33,6 @@ sub reconfig {
 sub delzone {
     my ($self, $zdir, $zname) = @_;
     system("rndc delzone $zname 2>/dev/null 1>/dev/null");
-    unlink("$zdir/$zname");
 }
 
 1;
diff --git a/t/config.ini b/t/config.ini
index f4d9df0..d22e6a2 100644
--- a/t/config.ini
+++ b/t/config.ini
@@ -9,3 +9,5 @@ passwd	= HardPass4bla
 # possible options for dnsserver : bind rndc
 dnsapp  = rndc
 zones_path = "/srv/named/"
+sshhost = pizza
+sshuser = karchnu
diff --git a/t/initco.pm b/t/initco.pm
index 5145803..22586da 100644
--- a/t/initco.pm
+++ b/t/initco.pm
@@ -3,9 +3,7 @@ use warnings;
 use v5.14;
 use autodie;
 use Modern::Perl;
-use DNS::ZoneParse;
 use Config::Simple;
-use Data::Dump qw( dump );
 
 package initco;
 
@@ -15,14 +13,16 @@ sub initco {
     $cfgfile = defined $cfgfile ? $cfgfile : './config.ini';
 
     my $cfg = new Config::Simple($cfgfile);
-    my $app = app->new( zdir => $cfg->param('zones_path'),
-        dbname => $cfg->param('dbname'),
-        dbhost => $cfg->param('host'),
-        dbport => $cfg->param('port'),
-        dbuser => $cfg->param('user'),
-        dbpass => $cfg->param('passwd'),
-        sgbd => $cfg->param('sgbd'),
-        dnsapp => $cfg->param('dnsapp') );
+    my $app = app->new( zdir => $cfg->param('zones_path')
+        , dbname => $cfg->param('dbname')
+        , dbhost => $cfg->param('host')
+        , dbport => $cfg->param('port')
+        , dbuser => $cfg->param('user')
+        , dbpass => $cfg->param('passwd')
+        , sgbd => $cfg->param('sgbd')
+        , sshhost => $cfg->param('sshhost')
+        , sshuser => $cfg->param('sshuser')
+        , dnsapp => $cfg->param('dnsapp') );
 
     $app->init();
 
diff --git a/t/scp.pl b/t/scp.pl
new file mode 100755
index 0000000..c5ca5d4
--- /dev/null
+++ b/t/scp.pl
@@ -0,0 +1,16 @@
+#!/usr/bin/perl -w
+use strict;
+use warnings;
+use v5.14;
+use autodie;
+use Modern::Perl;
+use Net::SCP;
+
+my $hostname = "pizza";
+my $username = "karchnu";
+
+my $scp = Net::SCP->new( { host => $hostname, user => $username } );
+$scp->get("/etc/resolv.conf", "kikoo") or die $scp->{errstr};
+$scp->put("kikoo", "lolwat") or die $scp->{errstr};
+
+# $scp->put("filename") or die $scp->{errstr};
diff --git a/t/ssh.pl b/t/ssh.pl
new file mode 100644
index 0000000..ea5e7bb
--- /dev/null
+++ b/t/ssh.pl
@@ -0,0 +1,26 @@
+#!/usr/bin/perl -w
+use strict;
+use warnings;
+use v5.14;
+use autodie;
+use Modern::Perl;
+use Data::Dump qw( dump );
+use DNS::ZoneParse;
+
+my $hostname = "pizza";
+my $username = "karchnu";
+
+use Net::SSH2;
+
+my $ssh = Net::SSH2->new();
+
+$ssh->connect($hostname);
+$ssh->auth( username => $username);
+
+my $chan = $ssh->channel();
+$chan->exec('ls /');
+
+my $buf = '';
+say $buf while $chan->read($buf, 1500);
+
+$ssh->disconnect();
diff --git a/www/conf/config.ini b/www/conf/config.ini
index d4fa265..08977bc 100644
--- a/www/conf/config.ini
+++ b/www/conf/config.ini
@@ -16,3 +16,6 @@ passwd	= HardPass4bla
 # possible options for dnsserver : bind rndc
 dnsapp  = rndc
 zones_path = "/etc/bind/named/"
+
+sshhost = localhost
+sshuser = karchnu
diff --git a/www/lib/DNSManager.pm b/www/lib/DNSManager.pm
index fef11e9..90e40e0 100644
--- a/www/lib/DNSManager.pm
+++ b/www/lib/DNSManager.pm
@@ -23,14 +23,16 @@ our $VERSION = '0.1';
 sub initco {
 
     my $cfg = new Config::Simple(dirname(__FILE__).'/../conf/config.ini');
-    my $app = app->new( zdir => $cfg->param('zones_path'),
-        dbname => $cfg->param('dbname'),
-        dbhost => $cfg->param('host'),
-        dbport => $cfg->param('port'),
-        dbuser => $cfg->param('user'),
-        dbpass => $cfg->param('passwd'),
-        sgbd => $cfg->param('sgbd'),
-        dnsapp => $cfg->param('dnsapp') );
+    my $app = app->new( zdir => $cfg->param('zones_path')
+        , dbname => $cfg->param('dbname')
+        , dbhost => $cfg->param('host')
+        , dbport => $cfg->param('port')
+        , dbuser => $cfg->param('user')
+        , dbpass => $cfg->param('passwd')
+        , sgbd => $cfg->param('sgbd')
+        , sshhost => $cfg->param('sshhost')
+        , sshuser => $cfg->param('sshuser')
+        , dnsapp => $cfg->param('dnsapp') );
 
     $app->init();
 
@@ -224,11 +226,10 @@ prefix '/domain' => sub {
             }
 
             $zone->new_serial();
-            my $cfg = new Config::Simple(dirname(__FILE__).'/../conf/config.ini');
-            my $ed = app::zone::edit->new(zdir=>$cfg->param('zones_path')
-                , zname => param('domain'));
+            $app->update_domain( session('login')
+                , $zone
+                , param('domain'));
 
-            $ed->update($zone);
             redirect '/domain/details/'.param('domain');
 
         }