516 lines
12 KiB
Perl
Executable File
516 lines
12 KiB
Perl
Executable File
#!/usr/bin/perl -T
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$ENV{PATH}="/usr/local/bin:/usr/bin:/bin";
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package IkiWiki;
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use warnings;
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use strict;
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use File::Spec;
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use HTML::Template;
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use lib '.'; # For use without installation, removed by Makefile.
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use vars qw{%config %links %oldlinks %oldpagemtime %pagectime
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%renderedfiles %pagesources %inlinepages};
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sub usage () { #{{{
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die "usage: ikiwiki [options] source dest\n";
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} #}}}
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sub getconfig () { #{{{
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if (! exists $ENV{WRAPPED_OPTIONS}) {
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%config=(
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wiki_file_prune_regexp => qr{((^|/).svn/|\.\.|^\.|\/\.|\.html?$)},
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wiki_link_regexp => qr/\[\[(?:([^\s\]\|]+)\|)?([^\s\]]+)\]\]/,
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wiki_processor_regexp => qr/\[\[(\w+)\s+([^\]]+)\]\]/,
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wiki_file_regexp => qr/(^[-A-Za-z0-9_.:\/+]+$)/,
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verbose => 0,
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wikiname => "wiki",
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default_pageext => ".mdwn",
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cgi => 0,
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svn => 1,
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url => '',
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cgiurl => '',
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historyurl => '',
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diffurl => '',
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anonok => 0,
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rss => 0,
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rebuild => 0,
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refresh => 0,
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getctime => 0,
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wrapper => undef,
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wrappermode => undef,
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srcdir => undef,
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destdir => undef,
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templatedir => "/usr/share/ikiwiki/templates",
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setup => undef,
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adminuser => undef,
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);
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eval q{use Getopt::Long};
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GetOptions(
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"setup|s=s" => \$config{setup},
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"wikiname=s" => \$config{wikiname},
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"verbose|v!" => \$config{verbose},
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"rebuild!" => \$config{rebuild},
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"refresh!" => \$config{refresh},
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"getctime" => \$config{getctime},
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"wrappermode=i" => \$config{wrappermode},
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"svn!" => \$config{svn},
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"anonok!" => \$config{anonok},
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"rss!" => \$config{rss},
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"cgi!" => \$config{cgi},
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"url=s" => \$config{url},
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"cgiurl=s" => \$config{cgiurl},
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"historyurl=s" => \$config{historyurl},
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"diffurl=s" => \$config{diffurl},
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"exclude=s@" => sub {
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$config{wiki_file_prune_regexp}=qr/$config{wiki_file_prune_regexp}|$_[1]/;
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},
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"adminuser=s@" => sub {
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push @{$config{adminuser}}, $_[1]
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},
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"templatedir=s" => sub {
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$config{templatedir}=possibly_foolish_untaint($_[1])
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},
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"wrapper:s" => sub {
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$config{wrapper}=$_[1] ? $_[1] : "ikiwiki-wrap"
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},
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) || usage();
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if (! $config{setup}) {
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usage() unless @ARGV == 2;
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$config{srcdir} = possibly_foolish_untaint(shift @ARGV);
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$config{destdir} = possibly_foolish_untaint(shift @ARGV);
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checkconfig();
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}
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}
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else {
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# wrapper passes a full config structure in the environment
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# variable
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eval possibly_foolish_untaint($ENV{WRAPPED_OPTIONS});
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checkconfig();
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}
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} #}}}
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sub checkconfig () { #{{{
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if ($config{cgi} && ! length $config{url}) {
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error("Must specify url to wiki with --url when using --cgi\n");
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}
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if ($config{rss} && ! length $config{url}) {
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error("Must specify url to wiki with --url when using --rss\n");
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}
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$config{wikistatedir}="$config{srcdir}/.ikiwiki"
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unless exists $config{wikistatedir};
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if ($config{svn}) {
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require IkiWiki::Rcs::SVN;
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$config{rcs}=1;
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}
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else {
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require IkiWiki::Rcs::Stub;
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$config{rcs}=0;
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}
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} #}}}
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sub error ($) { #{{{
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if ($config{cgi}) {
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print "Content-type: text/html\n\n";
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print misctemplate("Error", "<p>Error: @_</p>");
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}
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die @_;
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} #}}}
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sub possibly_foolish_untaint ($) { #{{{
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my $tainted=shift;
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my ($untainted)=$tainted=~/(.*)/;
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return $untainted;
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} #}}}
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sub debug ($) { #{{{
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return unless $config{verbose};
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if (! $config{cgi}) {
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print "@_\n";
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}
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else {
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print STDERR "@_\n";
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}
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} #}}}
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sub basename ($) { #{{{
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my $file=shift;
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$file=~s!.*/!!;
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return $file;
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} #}}}
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sub dirname ($) { #{{{
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my $file=shift;
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$file=~s!/?[^/]+$!!;
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return $file;
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} #}}}
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sub pagetype ($) { #{{{
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my $page=shift;
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if ($page =~ /\.mdwn$/) {
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return ".mdwn";
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}
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else {
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return "unknown";
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}
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} #}}}
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sub pagename ($) { #{{{
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my $file=shift;
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my $type=pagetype($file);
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my $page=$file;
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$page=~s/\Q$type\E*$// unless $type eq 'unknown';
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return $page;
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} #}}}
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sub htmlpage ($) { #{{{
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my $page=shift;
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return $page.".html";
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} #}}}
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sub readfile ($) { #{{{
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my $file=shift;
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if (-l $file) {
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error("cannot read a symlink ($file)");
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}
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local $/=undef;
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open (IN, "$file") || error("failed to read $file: $!");
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my $ret=<IN>;
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close IN;
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return $ret;
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} #}}}
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sub writefile ($$) { #{{{
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my $file=shift;
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my $content=shift;
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if (-l $file) {
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error("cannot write to a symlink ($file)");
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}
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my $dir=dirname($file);
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if (! -d $dir) {
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my $d="";
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foreach my $s (split(m!/+!, $dir)) {
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$d.="$s/";
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if (! -d $d) {
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mkdir($d) || error("failed to create directory $d: $!");
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}
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}
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}
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open (OUT, ">$file") || error("failed to write $file: $!");
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print OUT $content;
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close OUT;
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} #}}}
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sub bestlink ($$) { #{{{
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# Given a page and the text of a link on the page, determine which
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# existing page that link best points to. Prefers pages under a
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# subdirectory with the same name as the source page, failing that
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# goes down the directory tree to the base looking for matching
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# pages.
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my $page=shift;
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my $link=lc(shift);
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my $cwd=$page;
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do {
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my $l=$cwd;
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$l.="/" if length $l;
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$l.=$link;
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if (exists $links{$l}) {
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#debug("for $page, \"$link\", use $l");
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return $l;
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}
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} while $cwd=~s!/?[^/]+$!!;
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#print STDERR "warning: page $page, broken link: $link\n";
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return "";
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} #}}}
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sub isinlinableimage ($) { #{{{
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my $file=shift;
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$file=~/\.(png|gif|jpg|jpeg)$/i;
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} #}}}
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sub pagetitle ($) { #{{{
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my $page=shift;
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$page=~s/__(\d+)__/&#$1;/g;
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$page=~y/_/ /;
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return $page;
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} #}}}
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sub titlepage ($) { #{{{
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my $title=shift;
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$title=~y/ /_/;
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$title=~s/([^-A-Za-z0-9_:+\/])/"__".ord($1)."__"/eg;
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return $title;
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} #}}}
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sub cgiurl (@) { #{{{
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my %params=@_;
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return $config{cgiurl}."?".join("&", map "$_=$params{$_}", keys %params);
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} #}}}
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sub htmllink ($$;$$$) { #{{{
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my $page=shift;
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my $link=shift;
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my $noimageinline=shift; # don't turn links into inline html images
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my $forcesubpage=shift; # force a link to a subpage
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my $linktext=shift; # set to force the link text to something
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my $bestlink;
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if (! $forcesubpage) {
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$bestlink=bestlink($page, $link);
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}
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else {
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$bestlink="$page/".lc($link);
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}
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$linktext=pagetitle(basename($link)) unless defined $linktext;
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return $linktext if length $bestlink && $page eq $bestlink;
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# TODO BUG: %renderedfiles may not have it, if the linked to page
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# was also added and isn't yet rendered! Note that this bug is
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# masked by the bug mentioned below that makes all new files
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# be rendered twice.
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if (! grep { $_ eq $bestlink } values %renderedfiles) {
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$bestlink=htmlpage($bestlink);
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}
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if (! grep { $_ eq $bestlink } values %renderedfiles) {
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return "<span><a href=\"".
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cgiurl(do => "create", page => $link, from =>$page).
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"\">?</a>$linktext</span>"
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}
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$bestlink=File::Spec->abs2rel($bestlink, dirname($page));
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if (! $noimageinline && isinlinableimage($bestlink)) {
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return "<img src=\"$bestlink\" alt=\"$linktext\">";
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}
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return "<a href=\"$bestlink\">$linktext</a>";
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} #}}}
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sub indexlink () { #{{{
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return "<a href=\"$config{url}\">$config{wikiname}</a>";
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} #}}}
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sub lockwiki () { #{{{
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# Take an exclusive lock on the wiki to prevent multiple concurrent
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# run issues. The lock will be dropped on program exit.
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if (! -d $config{wikistatedir}) {
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mkdir($config{wikistatedir});
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}
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open(WIKILOCK, ">$config{wikistatedir}/lockfile") ||
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error ("cannot write to $config{wikistatedir}/lockfile: $!");
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if (! flock(WIKILOCK, 2 | 4)) {
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debug("wiki seems to be locked, waiting for lock");
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my $wait=600; # arbitrary, but don't hang forever to
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# prevent process pileup
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for (1..600) {
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return if flock(WIKILOCK, 2 | 4);
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sleep 1;
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}
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error("wiki is locked; waited $wait seconds without lock being freed (possible stuck process or stale lock?)");
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}
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} #}}}
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sub unlockwiki () { #{{{
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close WIKILOCK;
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} #}}}
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sub loadindex () { #{{{
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open (IN, "$config{wikistatedir}/index") || return;
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while (<IN>) {
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$_=possibly_foolish_untaint($_);
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chomp;
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my %items;
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$items{link}=[];
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foreach my $i (split(/ /, $_)) {
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my ($item, $val)=split(/=/, $i, 2);
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push @{$items{$item}}, $val;
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}
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next unless exists $items{src}; # skip bad lines for now
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my $page=pagename($items{src}[0]);
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if (! $config{rebuild}) {
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$pagesources{$page}=$items{src}[0];
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$oldpagemtime{$page}=$items{mtime}[0];
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$oldlinks{$page}=[@{$items{link}}];
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$links{$page}=[@{$items{link}}];
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$inlinepages{$page}=join(" ", @{$items{inlinepage}})
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if exists $items{inlinepage};
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$renderedfiles{$page}=$items{dest}[0];
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}
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$pagectime{$page}=$items{ctime}[0];
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}
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close IN;
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} #}}}
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sub saveindex () { #{{{
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if (! -d $config{wikistatedir}) {
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mkdir($config{wikistatedir});
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}
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open (OUT, ">$config{wikistatedir}/index") ||
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error("cannot write to $config{wikistatedir}/index: $!");
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foreach my $page (keys %oldpagemtime) {
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next unless $oldpagemtime{$page};
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my $line="mtime=$oldpagemtime{$page} ".
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"ctime=$pagectime{$page} ".
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"src=$pagesources{$page} ".
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"dest=$renderedfiles{$page}";
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$line.=" link=$_" foreach @{$links{$page}};
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if (exists $inlinepages{$page}) {
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$line.=" inlinepage=$_" foreach split " ", $inlinepages{$page};
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}
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print OUT $line."\n";
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}
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close OUT;
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} #}}}
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sub misctemplate ($$) { #{{{
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my $title=shift;
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my $pagebody=shift;
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my $template=HTML::Template->new(
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filename => "$config{templatedir}/misc.tmpl"
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);
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$template->param(
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title => $title,
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indexlink => indexlink(),
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wikiname => $config{wikiname},
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pagebody => $pagebody,
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);
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return $template->output;
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}#}}}
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sub userinfo_get ($$) { #{{{
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my $user=shift;
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my $field=shift;
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eval q{use Storable};
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my $userdata=eval{ Storable::lock_retrieve("$config{wikistatedir}/userdb") };
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if (! defined $userdata || ! ref $userdata ||
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! exists $userdata->{$user} || ! ref $userdata->{$user} ||
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! exists $userdata->{$user}->{$field}) {
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return "";
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}
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return $userdata->{$user}->{$field};
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} #}}}
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sub userinfo_set ($$$) { #{{{
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my $user=shift;
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my $field=shift;
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my $value=shift;
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eval q{use Storable};
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my $userdata=eval{ Storable::lock_retrieve("$config{wikistatedir}/userdb") };
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if (! defined $userdata || ! ref $userdata ||
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! exists $userdata->{$user} || ! ref $userdata->{$user}) {
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return "";
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}
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$userdata->{$user}->{$field}=$value;
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my $oldmask=umask(077);
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my $ret=Storable::lock_store($userdata, "$config{wikistatedir}/userdb");
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umask($oldmask);
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return $ret;
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} #}}}
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sub userinfo_setall ($$) { #{{{
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my $user=shift;
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my $info=shift;
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eval q{use Storable};
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my $userdata=eval{ Storable::lock_retrieve("$config{wikistatedir}/userdb") };
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if (! defined $userdata || ! ref $userdata) {
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$userdata={};
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}
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$userdata->{$user}=$info;
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my $oldmask=umask(077);
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my $ret=Storable::lock_store($userdata, "$config{wikistatedir}/userdb");
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umask($oldmask);
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return $ret;
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} #}}}
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sub is_admin ($) { #{{{
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my $user_name=shift;
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return grep { $_ eq $user_name } @{$config{adminuser}};
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} #}}}
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sub glob_match ($$) { #{{{
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my $page=shift;
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my $glob=shift;
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# turn glob into safe regexp
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$glob=quotemeta($glob);
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$glob=~s/\\\*/.*/g;
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$glob=~s/\\\?/./g;
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$glob=~s!\\/!/!g;
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$page=~/^$glob$/i;
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} #}}}
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sub globlist_match ($$) { #{{{
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my $page=shift;
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my @globlist=split(" ", shift);
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# check any negated globs first
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foreach my $glob (@globlist) {
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return 0 if $glob=~/^!(.*)/ && glob_match($page, $1);
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}
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foreach my $glob (@globlist) {
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return 1 if glob_match($page, $glob);
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}
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return 0;
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} #}}}
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sub main () { #{{{
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getconfig();
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if ($config{cgi}) {
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lockwiki();
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loadindex();
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require IkiWiki::CGI;
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cgi();
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}
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elsif ($config{setup}) {
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require IkiWiki::Setup;
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setup();
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}
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elsif ($config{wrapper}) {
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lockwiki();
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require IkiWiki::Wrapper;
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gen_wrapper();
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}
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else {
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lockwiki();
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loadindex();
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require IkiWiki::Render;
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rcs_update();
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rcs_getctime() if $config{getctime};
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refresh();
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saveindex();
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}
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} #}}}
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main;
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