add API for apt using libapt-pkg-perl

PVE/API2/APT.pm

+package PVE::API2::APT;
+
+use strict;
+use warnings;
+
+use PVE::Tools qw(extract_param);
+use PVE::SafeSyslog;
+use PVE::INotify;
+use PVE::Exception qw(raise_param_exc);
+use PVE::RESTHandler;
+use PVE::RPCEnvironment;
+
+use PVE::JSONSchema qw(get_standard_option);
+
+use AptPkg::Cache;
+use AptPkg::Version;
+use AptPkg::PkgRecords;
+
+my $apt_cache;
+
+my $get_apt_cache = sub {
+    
+    return $apt_cache if $apt_cache;
+
+    $apt_cache = AptPkg::Cache->new() || die "unable to initialize AptPkg::Cache\n";
+
+    return $apt_cache;
+};
+
+use base qw(PVE::RESTHandler);
+
+__PACKAGE__->register_method({
+    name => 'index', 
+    path => '', 
+    method => 'GET',
+    description => "Directory index for apt (Advanced Package Tool).",
+    permissions => {
+	user => 'all',
+    },
+    parameters => {
+    	additionalProperties => 0,
+	properties => {
+	    node => get_standard_option('pve-node'),
+	},
+    },
+    returns => {
+	type => "array",
+	items => {
+	    type => "object",
+	    properties => {
+		id => { type => 'string' },
+	    },
+	},
+	links => [ { rel => 'child', href => "{id}" } ],
+    },
+    code => sub {
+	my ($param) = @_;
+
+	my $res = [ 
+	    { id => 'update' },
+	    { id => 'upgrade' },
+	    { id => 'changelog' },
+	];
+
+	return $res;
+    }});
+
+my $assemble_pkginfo = sub {
+    my ($pkgname, $info, $current_ver, $candidate_ver)  = @_;
+
+    my $data = { 
+	Package => $info->{Name},
+	Title => $info->{ShortDesc},
+    };
+
+    if (my $desc = $info->{LongDesc}) {
+	$desc =~ s/^.*\n\s?//; # remove first line
+	$desc =~ s/\n / /g;
+	$data->{Description} = $desc;
+    }
+ 
+    foreach my $k (qw(Section Arch Priority)) {
+	$data->{$k} = $candidate_ver->{$k};
+    }
+
+    $data->{Version} = $candidate_ver->{VerStr};
+    $data->{OldVersion} = $current_ver->{VerStr};
+
+    return $data;
+};
+
+__PACKAGE__->register_method({
+    name => 'list_updates', 
+    path => 'update', 
+    method => 'GET',
+    description => "List available updates.",
+    permissions => {
+	check => ['perm', '/nodes/{node}', [ 'Sys.Modify' ]],
+    },
+    protected => 1,
+    proxyto => 'node',
+    parameters => {
+    	additionalProperties => 0,
+	properties => {
+	    node => get_standard_option('pve-node'),
+	},
+    },
+    returns => {
+	type => "array",
+	items => {
+	    type => "object",
+	    properties => {},
+	},
+    },
+    code => sub {
+	my ($param) = @_;
+
+	my $pkglist = [];
+
+	my $cache = &$get_apt_cache();
+	my $policy = $cache->policy;
+	my $pkgrecords = $cache->packages();
+
+	foreach my $pkgname (keys %$cache) {
+	    my $p = $cache->{$pkgname};
+	    next if $p->{SelectedState} ne 'Install';
+	    my $current_ver = $p->{CurrentVer};
+	    my $candidate_ver = $policy->candidate($p);
+
+	    if ($current_ver->{VerStr} ne $candidate_ver->{VerStr}) {
+		my $info = $pkgrecords->lookup($pkgname);
+		my $res = &$assemble_pkginfo($pkgname, $info, $current_ver, $candidate_ver);
+		push @$pkglist, $res;
+	    }
+	}
+
+	return $pkglist;
+    }});
+
+1;

PVE/API2/Makefile

 include ../../defines.mk
 
 PERLSOURCE = 			\
+	APT.pm			\
 	Subscription.pm		\
 	VZDump.pm		\
 	Backup.pm		\

PVE/API2/Nodes.pm

@@ -29,6 +29,7 @@ use PVE::API2::Storage::Status;
 use PVE::API2::Qemu;
 use PVE::API2::OpenVZ;
 use PVE::API2::VZDump;
+use PVE::API2::APT;
 use JSON;
 
 use base qw(PVE::RESTHandler);
@@ -78,6 +79,11 @@ __PACKAGE__->register_method ({
     path => 'storage',
 });
 
+__PACKAGE__->register_method ({
+    subclass => "PVE::API2::APT",  
+    path => 'apt',
+});
+
 __PACKAGE__->register_method ({
     name => 'index', 
     path => '', 
@@ -102,6 +108,7 @@ __PACKAGE__->register_method ({
 	my ($param) = @_;
     
 	my $result = [
+	    { name => 'apt' },
 	    { name => 'version' },
 	    { name => 'syslog' },
 	    { name => 'bootlog' },

debian/control.in

@@ -3,7 +3,7 @@ Version: @VERSION@-@PACKAGERELEASE@
 Section: admin
 Priority: optional
 Architecture: amd64
-Depends: perl5, libtimedate-perl, libauthen-pam-perl, libintl-perl, rsync, libjson-perl, liblockfile-simple-perl, vncterm, qemu-server (>= 1.1-1), libwww-perl (>= 6.04-1), libnet-http-perl (>= 6.06-1), libhttp-daemon-perl, wget, libnet-dns-perl, vlan, ifenslave-2.6 (>= 1.1.0-10), liblinux-inotify2-perl, debconf (>= 0.5) | debconf-2.0, netcat-traditional, pve-cluster (>= 1.0-29), libpve-common-perl, libpve-storage-perl, libterm-readline-gnu-perl, libpve-access-control (>= 3.0-2), libio-socket-ssl-perl, libfilesys-df-perl, libfile-readbackwards-perl, libfile-sync-perl, redhat-cluster-pve, resource-agents-pve, fence-agents-pve, cstream, postfix | mail-transport-agent, libxml-parser-perl, lzop, dtach, libanyevent-perl, libio-compress-perl, liburi-perl, logrotate, libanyevent-http-perl, apt-transport-https
+Depends: perl5, libtimedate-perl, libauthen-pam-perl, libintl-perl, rsync, libjson-perl, liblockfile-simple-perl, vncterm, qemu-server (>= 1.1-1), libwww-perl (>= 6.04-1), libnet-http-perl (>= 6.06-1), libhttp-daemon-perl, wget, libnet-dns-perl, vlan, ifenslave-2.6 (>= 1.1.0-10), liblinux-inotify2-perl, debconf (>= 0.5) | debconf-2.0, netcat-traditional, pve-cluster (>= 1.0-29), libpve-common-perl, libpve-storage-perl, libterm-readline-gnu-perl, libpve-access-control (>= 3.0-2), libio-socket-ssl-perl, libfilesys-df-perl, libfile-readbackwards-perl, libfile-sync-perl, redhat-cluster-pve, resource-agents-pve, fence-agents-pve, cstream, postfix | mail-transport-agent, libxml-parser-perl, lzop, dtach, libanyevent-perl, libio-compress-perl, liburi-perl, logrotate, libanyevent-http-perl, apt-transport-https, libapt-pkg-perl
 Conflicts: netcat-openbsd, vzdump
 Replaces: vzdump
 Provides: vzdump