path: root/blog/builddb.pl

#!/usr/bin/perl
use lib '/home/bbs/bin/';
use strict;
use Getopt::Std;
use LocalVars;
use IO::Handle;
use Data::Dumper;
use BBSFileHeader;
use DB_File;
use OurNet::FuzzyIndex;

sub main
{
    my($fh);
    die usage() unless( getopts('cdaofn:') );
    die usage() if( !@ARGV );
    builddb($_) foreach( @ARGV );
}

sub usage
{
    return ("$0 [-acdfo] [-n NUMBER] [board ...]\n".
        "\t-a\t\trebuild all files\n".
        "\t-c\t\tbuild configure\n".
        "\t-d\t\tprint debug message\n".
        "\t-f\t\tforce build\n".
        "\t-o\t\tonly build content(not building link)\n".
        "\t-n NUMBER\tonly build \#NUMBER article\n");
}

sub debugmsg($)
{
    print "$_\n" if( $Getopt::Std::opt_d );
}

sub builddb($)
{
    my($board) = @_;
    my(%bh, %ch);

    debugmsg("building $board");
    return if( !getdir("$BBSHOME/man/boards/".substr($board,0,1)."/$board",
               \%bh, \%ch) );
    buildconfigure($board, \%ch)
    if( $Getopt::Std::opt_c || $Getopt::Std::opt_a );
    builddata($board, \%bh,
          $Getopt::Std::opt_a,
          $Getopt::Std::opt_o,
          $Getopt::Std::opt_n,
          $Getopt::Std::opt_f,);
}

sub buildconfigure($$)
{
    my($board, $rch) = @_;
    my($outdir, $fn, $flag, %config, %attr);

    $outdir = "$BLOGROOT/$board";
    `/bin/rm -rf $outdir; /bin/mkdir -p $outdir`;

    tie(%config, 'DB_File', "$outdir/config.db",
    O_CREAT | O_RDWR, 0666, $DB_HASH);
    tie(%attr, 'DB_File', "$outdir/attr.db",
    O_CREAT | O_RDWR, 0666, $DB_HASH);

    for ( 0..($rch->{num} - 1) ){
    debugmsg("\texporting ".$rch->{"$_.title"});
    if( $rch->{"$_.title"} =~ /^config$/i ){
        foreach( split("\n", $rch->{"$_.content"}) ){
        $config{$1} = $2 if( !/^\#/ && /(.*?):\s*(.*)/ );
        }
    }
    else{
        my(@ls, $c, $a, $fn);
        
        $fn = $rch->{"$_.title"};
        if( $fn !~ /\.(css|htm|html|js)$/i ){
        print "not supported filetype ". $rch->{"$_.title"}. "\n";
        next;
        }
        
        $c = $rch->{"$_.content"};
        $c =~ s/<meta http-equiv=\"refresh\".*?\n//g;
        open FH, ">$outdir/$fn";
        
        if( $c =~ m|<attribute>(.*?)\n\s*</attribute>\s*\n(.*)|s ){
        ($a, $c) = ($1, $2);
        $a =~ s/^\s*\#.*?\n//gm;
        foreach( split("\n", $a) ){
            $attr{"$fn.$1"} = $2 if( /^\s*(\w+):\s+(.*)/ );
        }
        }
        print FH $c;
    }
    }
    debugmsg(Dumper(\%config));
    debugmsg(Dumper(\%attr));
}

sub builddata($$$$$$)
{
    my($board, $rbh, $rebuild, $contentonly, $number, $force) = @_;
    my(%dat, $dbfn, $idxfn, $y, $m, $d, $t, $currid, $idx);

    $dbfn = "$BLOGROOT/$board.db";
    $idxfn = "$BLOGROOT/$board.idx";
    if( $rebuild ){
    unlink $dbfn;
    unlink $idxfn;
    }

    tie %dat, 'DB_File', $dbfn, O_CREAT | O_RDWR, 0666, $DB_HASH;
    $idx = OurNet::FuzzyIndex->new($idxfn);
    foreach( $number ? $number : (1..($rbh->{num} - 1)) ){
    if( !(($y, $m, $d, $t) =
          $rbh->{"$_.title"} =~ /(\d+)\.(\d+).(\d+),(.*)/) ){
        debugmsg("\terror parsing $_: ".$rbh->{"$_.title"});
    }
    else{
        $currid = sprintf('%04d%02d%02d', $y, $m, $d);
        if( $dat{$currid} && !$force ){
        debugmsg("\t$currid is already in db");
        next;
        }

        debugmsg("\tbuilding $currid content");
        $dat{ sprintf('%04d%02d', $y, $m) } = 1;
        $dat{"$currid.title"} = $t;
        $dat{"$currid.author"} = $rbh->{"$_.owner"};
        # $dat{"$currid.content"} = $rbh->{"$_.content"};
        # ugly code for making short
        my @c = split("\n",
              $dat{"$currid.content"} = $rbh->{"$_.content"});
        $dat{"$currid.short"} = ("$c[0]\n$c[1]\n$c[2]\n$c[3]\n");

        $idx->delete($currid) if( $idx->findkey($currid) );
        $idx->insert($currid, ($dat{"$currid.title"}. "\n".
                   $rbh->{"$_.content"}));

        if( !$contentonly ){
        debugmsg("\tbuilding $currid linking... ");
        if( $dat{$currid} ){
            debugmsg("\t\talready linked");
        }
        elsif( !$dat{head} ){ # first article
            $dat{head} = $currid;
            $dat{last} = $currid;
        }
        elsif( $currid < $dat{head} ){ # before head ?
            $dat{"$currid.next"} = $dat{head};
            $dat{"$dat{head}.prev"} = $currid;
            $dat{head} = $currid;
        }
        elsif( $currid > $dat{last} ){ # after last ?
            $dat{"$currid.prev"} = $dat{last};
            $dat{"$dat{last}.next"} = $currid;
            $dat{last} = $currid;
        }
        else{ # inside ? @_@;;;
            my($p, $c);
            for( $p = $dat{last} ; $p>$currid ; $p = $dat{"$p.prev"} ){
            ;
            }
            $c = $dat{"$p.next"};
            
            $dat{"$currid.next"} = $c;
            $dat{"$currid.prev"} = $p;
            $dat{"$p.next"} = $currid;
            $dat{"$c.prev"} = $currid;
        }
        $dat{$currid} = 1;
        }
    }
    }
    untie %dat;
    $idx->sync();
    undef $idx;
    chmod 0666, $idxfn;
}

sub getdir($$$$$)
{
    my($bdir, $rh_bh, $rh_ch) = @_;
    my(%h);
    tie %h, 'BBSFileHeader', "$bdir/";
    if( $h{"-1.title"} !~ /blog/i || !$h{"-1.isdir"} ){
    debugmsg("blogdir not found");
    return;
    }

    tie %{$rh_bh}, 'BBSFileHeader', "$bdir/". $h{'-1.filename'}.'/';
    if( $rh_bh->{'0.title'} !~ /config/i ||
    !$rh_bh->{'0.isdir'} ){
    debugmsg("configure not found");
    return;
    }

    tie %{$rh_ch}, 'BBSFileHeader', $rh_bh->{dir}. '/'. $rh_bh->{'0.filename'};
    return 1;
}

main();
1;