path: root/IkiWiki/Setup.pm

#!/usr/bin/perl
# Ikiwiki setup files are perl files that 'use IkiWiki::Setup::foo',
# passing it some sort of configuration data.

package IkiWiki::Setup;

use warnings;
use strict;
use IkiWiki;
use open qw{:utf8 :std};
use File::Spec;

sub load ($) {
    my $setup=IkiWiki::possibly_foolish_untaint(shift);
    $config{setupfile}=File::Spec->rel2abs($setup);

    #translators: The first parameter is a filename, and the second
    #translators: is a (probably not translated) error message.
    open (IN, $setup) || error(sprintf(gettext("cannot read %s: %s"), $setup, $!));
    my $code;
    {
        local $/=undef;
        $code=<IN> || error("$setup: $!");
    }
    
    ($code)=$code=~/(.*)/s;
    close IN;

    eval $code;
    error("$setup: ".$@) if $@;
}

sub merge ($) {
    # Merge setup into existing config and untaint.
    my %setup=%{shift()};

    if (exists $setup{add_plugins} && exists $config{add_plugins}) {
        push @{$setup{add_plugins}}, @{$config{add_plugins}};
    }
    if (exists $setup{exclude}) {
        push @{$config{wiki_file_prune_regexps}}, $setup{exclude};
    }
    foreach my $c (keys %setup) {
        if (defined $setup{$c}) {
            if (! ref $setup{$c} || ref $setup{$c} eq 'Regexp') {
                $config{$c}=IkiWiki::possibly_foolish_untaint($setup{$c});
            }
            elsif (ref $setup{$c} eq 'ARRAY') {
                if ($c eq 'wrappers') {
                    # backwards compatability code
                    $config{$c}=$setup{$c};
                }
                else {
                    $config{$c}=[map { IkiWiki::possibly_foolish_untaint($_) } @{$setup{$c}}]
                }
            }
            elsif (ref $setup{$c} eq 'HASH') {
                foreach my $key (keys %{$setup{$c}}) {
                    $config{$c}{$key}=IkiWiki::possibly_foolish_untaint($setup{$c}{$key});
                }
            }
        }
        else {
            $config{$c}=undef;
        }
    }
    
    if (length $config{cgi_wrapper}) {
        push @{$config{wrappers}}, {
            cgi => 1,
            wrapper => $config{cgi_wrapper},
            wrappermode => (defined $config{cgi_wrappermode} ? $config{cgi_wrappermode} : "06755"),
        };
    }
}

sub getsetup () {
    # Gets all available setup data from all plugins. Returns an
    # ordered list of [plugin, setup] pairs.

        # disable logging to syslog while dumping, broken plugins may
    # whine when loaded
    my $syslog=$config{syslog};
        $config{syslog}=undef;

    # Load all plugins, so that all setup options are available.
    my @plugins=IkiWiki::listplugins();
    foreach my $plugin (@plugins) {
        eval { IkiWiki::loadplugin($plugin) };
        if (exists $IkiWiki::hooks{checkconfig}{$plugin}{call}) {
            my @s=eval { $IkiWiki::hooks{checkconfig}{$plugin}{call}->() };
        }
    }
    
    my %sections;
    foreach my $plugin (@plugins) {
        if (exists $IkiWiki::hooks{getsetup}{$plugin}{call}) {
            # use an array rather than a hash, to preserve order
            my @s=eval { $IkiWiki::hooks{getsetup}{$plugin}{call}->() };
            next unless @s;

            # set default section value (note use of shared
            # hashref between array and hash)
            my %s=@s;
            if (! exists $s{plugin} || ! $s{plugin}->{section}) {
                $s{plugin}->{section}="other";
            }

            # only the selected rcs plugin is included
            if ($config{rcs} && $plugin eq $config{rcs}) {
                $s{plugin}->{section}="core";
            }
            elsif ($s{plugin}->{section} eq "rcs") {
                next;
            }

            push @{$sections{$s{plugin}->{section}}}, [ $plugin, \@s ];
        }
    }
    
        $config{syslog}=$syslog;

    return map { sort { $a->[0] cmp $b->[0] } @{$sections{$_}} }
        sort { # core first, other last, otherwise alphabetical
            ($b eq "core") <=> ($a eq "core")
               ||
            ($a eq "other") <=> ($b eq "other")
               ||
            $a cmp $b
        } keys %sections;
}

sub dump ($) {
    my $file=IkiWiki::possibly_foolish_untaint(shift);
    
    require IkiWiki::Setup::Standard;
    my @dump=IkiWiki::Setup::Standard::gendump("Setup file for ikiwiki.");

    open (OUT, ">", $file) || die "$file: $!";
    print OUT "$_\n" foreach @dump;
    close OUT;
}

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