Re: [pmg-devel] [PATCH pmg-api v2 2/4] api: spamassassin: read local channels

[Thomas Lamprecht <t.lamprecht@proxmox.com>]

On 30.12.20 18:15, Stoiko Ivanov wrote:
> Signed-off-by: Stoiko Ivanov <s.ivanov@proxmox.com>
> ---
> v1->v2:
> * changed the transliteration (tr///) to an equivalent more common s///
> 
>  src/PMG/API2/SpamAssassin.pm | 83 +++++++++++++++++++++---------------
>  1 file changed, 49 insertions(+), 34 deletions(-)
> 
> diff --git a/src/PMG/API2/SpamAssassin.pm b/src/PMG/API2/SpamAssassin.pm
> index eab02d9..6b9f8f9 100644
> --- a/src/PMG/API2/SpamAssassin.pm
> +++ b/src/PMG/API2/SpamAssassin.pm
> @@ -80,50 +80,65 @@ __PACKAGE__->register_method({
>  	my ($param) = @_;
>  
>  	my $saversion = $Mail::SpamAssassin::VERSION;
> -	my $channelfile = "/var/lib/spamassassin/$saversion/updates_spamassassin_org.cf";
> +	my $sa_update_dir = "/var/lib/spamassassin/$saversion/";
> +
> +	my $check_channel = sub {
> +	    my ($channel) = @_;
> +
> +	    # see sa-update source:
> +	    my $channel_file_base = $channel;
> +	    $channel_file_base =~ s/[^A-Za-z0-9-]+/_/g;
> +	    my $channelfile = "${sa_update_dir}${channel_file_base}.cf";
> +
> +	    my $mtime = -1;
> +	    my $version = -1;
> +	    my $newversion = -1;
> +
> +	    if (-f $channelfile) {
> +		# stat metadata cf file
> +		$mtime = (stat($channelfile))[9]; # 9 is mtime
> +
> +		# parse version from metadata cf file
> +		my $metadata = PVE::Tools::file_read_firstline($channelfile);
> +		if ($metadata =~ m/\s([0-9]+)$/) {
> +		    $version = $1;
> +		} else {
> +		    warn "invalid metadata in '$channelfile'\n";

I know it was already there, but this  mayresults in a undef comparison
when checking `if ($newversion > $version) {` below.
I'd do a separate followup with that being fixed, e.g., by either prepending the
if check with a `!defined($version) || ...` check or setting it to -1000 or so.

> +		}
> +	    }
> +	    # call sa-update to see if updates are available
>  
> -	my $mtime = -1;
> -	my $version = -1;
> -	my $newversion = -1;
> +	    my $cmd = "$SAUPDATE -v --checkonly --channel $channel";
> +	    PVE::Tools::run_command($cmd, noerr => 1, logfunc => sub {
> +		my ($line) = @_;
>  
> -	if (-f $channelfile) {
> -	    # stat metadata cf file
> -	    $mtime = (stat($channelfile))[9]; # 9 is mtime
> +		if ($line =~ m/Update available for channel \S+: -?[0-9]+ -> ([0-9]+)/) {
> +		    $newversion = $1;
> +		}
> +	    });
>  
> -	    # parse version from metadata cf file
> -	    my $metadata = PVE::Tools::file_read_firstline($channelfile);
> -	    if ($metadata =~ m/\s([0-9]+)$/) {
> -		$version = $1;
> -	    } else {
> -		warn "invalid metadata in '$channelfile'\n";
> -	    }
> -	}
> -	# call sa-update to see if updates are available
> +	    my $result = {
> +		channel => $channel,
> +	    };
>  
> -	my $cmd = "$SAUPDATE -v --checkonly";
> -	PVE::Tools::run_command($cmd, noerr => 1, logfunc => sub {
> -	    my ($line) = @_;
> +	    $result->{version} = $version if $version > -1;
> +	    $result->{update_version} = $newversion if $newversion > -1;
> +	    $result->{last_updated} = $mtime if $mtime > -1;
>  
> -	    if ($line =~ m/Update available for channel \S+: -?[0-9]+ -> ([0-9]+)/) {
> -		$newversion = $1;
> +	    if ($newversion > $version) {
> +		$result->{update_avail} = 1;
> +	    } else {
> +		$result->{update_avail} = 0;
>  	    }
> -	});
> -
> -	my $result = {
> -	    channel => 'updates.spamassassin.org',
> +	    return $result;
>  	};
>  
> -	$result->{version} = $version if $version > -1;
> -	$result->{update_version} = $newversion if $newversion > -1;
> -	$result->{last_updated} = $mtime if $mtime > -1;
> +	my @channels = ('updates.spamassassin.org');
>  
> -	if ($newversion > $version) {
> -	    $result->{update_avail} = 1;
> -	} else {
> -	    $result->{update_avail} = 0;
> -	}
> +	my $localchannels = PMG::Utils::local_spamassassin_channels();
> +	push(@channels, map { $_->{channelurl} } @$localchannels);
>  
> -	return [$result];
> +	return [ map { $check_channel->($_) } @channels];

this reads a bit weird, but can be OK as $check_channel does seem to catch
all actual possible errors.

>      }});
>  
>  __PACKAGE__->register_method({
>