ikiwiki/IkiWiki.pm

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#!/usr/bin/perl
package IkiWiki;
use warnings;
use strict;
use Encode;
use HTML::Entities;
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use URI::Escape q{uri_escape_utf8};
use POSIX;
use open qw{:utf8 :std};
use vars qw{%config %links %oldlinks %pagemtime %pagectime %pagecase
%renderedfiles %oldrenderedfiles %pagesources %destsources
%depends %hooks %forcerebuild $gettext_obj};
use Exporter q{import};
our @EXPORT = qw(hook debug error template htmlpage add_depends pagespec_match
bestlink htmllink readfile writefile pagetype srcfile pagename
displaytime will_render gettext urlto targetpage
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%config %links %renderedfiles %pagesources %destsources);
our $VERSION = 2.00; # plugin interface version, next is ikiwiki version
our $version='unknown'; # VERSION_AUTOREPLACE done by Makefile, DNE
my $installdir=''; # INSTALLDIR_AUTOREPLACE done by Makefile, DNE
# Optimisation.
use Memoize;
memoize("abs2rel");
memoize("pagespec_translate");
memoize("file_pruned");
sub defaultconfig () { #{{{
return
wiki_file_prune_regexps => [qr/\.\./, qr/^\./, qr/\/\./,
qr/\.x?html?$/, qr/\.ikiwiki-new$/,
qr/(^|\/).svn\//, qr/.arch-ids\//, qr/{arch}\//,
qr/(^|\/)_MTN\//,
qr/\.dpkg-tmp$/],
wiki_link_regexp => qr{
\[\[ # beginning of link
(?:
([^\]\|]+) # 1: link text
\| # followed by '|'
)? # optional
([^\s\]#]+) # 2: page to link to
(?:
\# # '#', beginning of anchor
([^\s\]]+) # 3: anchor text
)? # optional
\]\] # end of link
}x,
wiki_file_regexp => qr/(^[-[:alnum:]_.:\/+]+$)/,
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web_commit_regexp => qr/^web commit (by (.*?(?=: |$))|from (\d+\.\d+\.\d+\.\d+)):?(.*)/,
verbose => 0,
syslog => 0,
wikiname => "wiki",
default_pageext => "mdwn",
htmlext => "html",
cgi => 0,
post_commit => 0,
rcs => '',
notify => 0,
url => '',
cgiurl => '',
historyurl => '',
diffurl => '',
rss => 0,
atom => 0,
discussion => 1,
rebuild => 0,
refresh => 0,
getctime => 0,
w3mmode => 0,
wrapper => undef,
wrappermode => undef,
svnrepo => undef,
svnpath => "trunk",
gitorigin_branch => "origin",
gitmaster_branch => "master",
srcdir => undef,
destdir => undef,
pingurl => [],
templatedir => "$installdir/share/ikiwiki/templates",
underlaydir => "$installdir/share/ikiwiki/basewiki",
setup => undef,
adminuser => undef,
adminemail => undef,
plugin => [qw{mdwn inline htmlscrubber passwordauth openid signinedit
lockedit conditional}],
libdir => undef,
timeformat => '%c',
locale => undef,
sslcookie => 0,
httpauth => 0,
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userdir => "",
usedirs => 1,
numbacklinks => 10,
account_creation_password => "",
} #}}}
sub checkconfig () { #{{{
# locale stuff; avoid LC_ALL since it overrides everything
if (defined $ENV{LC_ALL}) {
$ENV{LANG} = $ENV{LC_ALL};
delete $ENV{LC_ALL};
}
if (defined $config{locale}) {
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if (POSIX::setlocale(&POSIX::LC_ALL, $config{locale})) {
$ENV{LANG}=$config{locale};
$gettext_obj=undef;
}
}
if ($config{w3mmode}) {
eval q{use Cwd q{abs_path}};
error($@) if $@;
$config{srcdir}=possibly_foolish_untaint(abs_path($config{srcdir}));
$config{destdir}=possibly_foolish_untaint(abs_path($config{destdir}));
$config{cgiurl}="file:///\$LIB/ikiwiki-w3m.cgi/".$config{cgiurl}
unless $config{cgiurl} =~ m!file:///!;
$config{url}="file://".$config{destdir};
}
if ($config{cgi} && ! length $config{url}) {
error(gettext("Must specify url to wiki with --url when using --cgi"));
}
$config{wikistatedir}="$config{srcdir}/.ikiwiki"
unless exists $config{wikistatedir};
if ($config{rcs}) {
eval qq{use IkiWiki::Rcs::$config{rcs}};
if ($@) {
error("Failed to load RCS module IkiWiki::Rcs::$config{rcs}: $@");
}
}
else {
require IkiWiki::Rcs::Stub;
}
run_hooks(checkconfig => sub { shift->() });
return 1;
} #}}}
sub loadplugins () { #{{{
if (defined $config{libdir}) {
unshift @INC, $config{libdir};
}
loadplugin($_) foreach @{$config{plugin}};
run_hooks(getopt => sub { shift->() });
if (grep /^-/, @ARGV) {
print STDERR "Unknown option: $_\n"
foreach grep /^-/, @ARGV;
usage();
}
return 1;
} #}}}
sub loadplugin ($) { #{{{
my $plugin=shift;
return if grep { $_ eq $plugin} @{$config{disable_plugins}};
foreach my $dir ($config{libdir}, "$installdir/lib/ikiwiki") {
if (defined $dir && -x "$dir/plugins/$plugin") {
require IkiWiki::Plugin::external;
import IkiWiki::Plugin::external "$dir/plugins/$plugin";
return 1;
}
}
my $mod="IkiWiki::Plugin::".possibly_foolish_untaint($plugin);
eval qq{use $mod};
if ($@) {
error("Failed to load plugin $mod: $@");
}
return 1;
} #}}}
sub error ($;$) { #{{{
my $message=shift;
my $cleaner=shift;
if ($config{cgi}) {
print "Content-type: text/html\n\n";
print misctemplate(gettext("Error"),
"<p>".gettext("Error").": $message</p>");
}
log_message('err' => $message) if $config{syslog};
if (defined $cleaner) {
$cleaner->();
}
die $message."\n";
} #}}}
sub debug ($) { #{{{
return unless $config{verbose};
return log_message(debug => @_);
} #}}}
my $log_open=0;
sub log_message ($$) { #{{{
my $type=shift;
if ($config{syslog}) {
require Sys::Syslog;
if (! $log_open) {
Sys::Syslog::setlogsock('unix');
Sys::Syslog::openlog('ikiwiki', '', 'user');
$log_open=1;
}
return eval {
Sys::Syslog::syslog($type, "[$config{wikiname}] %s", join(" ", @_));
};
}
elsif (! $config{cgi}) {
return print "@_\n";
}
else {
return print STDERR "@_\n";
}
} #}}}
sub possibly_foolish_untaint ($) { #{{{
my $tainted=shift;
my ($untainted)=$tainted=~/(.*)/s;
return $untainted;
} #}}}
sub basename ($) { #{{{
my $file=shift;
$file=~s!.*/+!!;
return $file;
} #}}}
sub dirname ($) { #{{{
my $file=shift;
$file=~s!/*[^/]+$!!;
return $file;
} #}}}
sub pagetype ($) { #{{{
my $page=shift;
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if ($page =~ /\.([^.]+)$/) {
return $1 if exists $hooks{htmlize}{$1};
}
return;
} #}}}
sub pagename ($) { #{{{
my $file=shift;
my $type=pagetype($file);
my $page=$file;
$page=~s/\Q.$type\E*$// if defined $type;
return $page;
} #}}}
sub targetpage ($$) { #{{{
my $page=shift;
my $ext=shift;
if (! $config{usedirs} || $page =~ /^index$/ ) {
return $page.".".$ext;
} else {
return $page."/index.".$ext;
}
} #}}}
sub htmlpage ($) { #{{{
my $page=shift;
return targetpage($page, $config{htmlext});
} #}}}
sub srcfile ($) { #{{{
my $file=shift;
return "$config{srcdir}/$file" if -e "$config{srcdir}/$file";
return "$config{underlaydir}/$file" if -e "$config{underlaydir}/$file";
error("internal error: $file cannot be found in $config{srcdir} or $config{underlaydir}");
return;
} #}}}
sub readfile ($;$$) { #{{{
my $file=shift;
my $binary=shift;
my $wantfd=shift;
if (-l $file) {
error("cannot read a symlink ($file)");
}
local $/=undef;
open (my $in, "<", $file) || error("failed to read $file: $!");
binmode($in) if ($binary);
return \*$in if $wantfd;
my $ret=<$in>;
close $in || error("failed to read $file: $!");
return $ret;
} #}}}
sub writefile ($$$;$$) { #{{{
my $file=shift; # can include subdirs
my $destdir=shift; # directory to put file in
my $content=shift;
my $binary=shift;
my $writer=shift;
my $test=$file;
while (length $test) {
if (-l "$destdir/$test") {
error("cannot write to a symlink ($test)");
}
$test=dirname($test);
}
my $newfile="$destdir/$file.ikiwiki-new";
if (-l $newfile) {
error("cannot write to a symlink ($newfile)");
}
my $dir=dirname($newfile);
if (! -d $dir) {
my $d="";
foreach my $s (split(m!/+!, $dir)) {
$d.="$s/";
if (! -d $d) {
mkdir($d) || error("failed to create directory $d: $!");
}
}
}
my $cleanup = sub { unlink($newfile) };
open (my $out, '>', $newfile) || error("failed to write $newfile: $!", $cleanup);
binmode($out) if ($binary);
if ($writer) {
$writer->(\*$out, $cleanup);
}
else {
print $out $content or error("failed writing to $newfile: $!", $cleanup);
}
close $out || error("failed saving $newfile: $!", $cleanup);
rename($newfile, "$destdir/$file") ||
error("failed renaming $newfile to $destdir/$file: $!", $cleanup);
return 1;
} #}}}
my %cleared;
sub will_render ($$;$) { #{{{
my $page=shift;
my $dest=shift;
my $clear=shift;
# Important security check.
if (-e "$config{destdir}/$dest" && ! $config{rebuild} &&
! grep { $_ eq $dest } (@{$renderedfiles{$page}}, @{$oldrenderedfiles{$page}})) {
error("$config{destdir}/$dest independently created, not overwriting with version from $page");
}
if (! $clear || $cleared{$page}) {
$renderedfiles{$page}=[$dest, grep { $_ ne $dest } @{$renderedfiles{$page}}];
}
else {
foreach my $old (@{$renderedfiles{$page}}) {
delete $destsources{$old};
}
$renderedfiles{$page}=[$dest];
$cleared{$page}=1;
}
$destsources{$dest}=$page;
return 1;
} #}}}
sub bestlink ($$) { #{{{
my $page=shift;
my $link=shift;
my $cwd=$page;
if ($link=~s/^\/+//) {
# absolute links
$cwd="";
}
do {
my $l=$cwd;
$l.="/" if length $l;
$l.=$link;
if (exists $links{$l}) {
return $l;
}
elsif (exists $pagecase{lc $l}) {
return $pagecase{lc $l};
}
} while $cwd=~s!/?[^/]+$!!;
if (length $config{userdir}) {
my $l = "$config{userdir}/".lc($link);
if (exists $links{$l}) {
return $l;
}
elsif (exists $pagecase{lc $l}) {
return $pagecase{lc $l};
}
}
#print STDERR "warning: page $page, broken link: $link\n";
return "";
} #}}}
sub isinlinableimage ($) { #{{{
my $file=shift;
return $file =~ /\.(png|gif|jpg|jpeg)$/i;
} #}}}
sub pagetitle ($;$) { #{{{
my $page=shift;
my $unescaped=shift;
if ($unescaped) {
$page=~s/(__(\d+)__|_)/$1 eq '_' ? ' ' : chr($2)/eg;
}
else {
$page=~s/(__(\d+)__|_)/$1 eq '_' ? ' ' : "&#$2;"/eg;
}
return $page;
} #}}}
sub titlepage ($) { #{{{
my $title=shift;
$title=~s/([^-[:alnum:]:+\/.])/$1 eq ' ' ? '_' : "__".ord($1)."__"/eg;
return $title;
} #}}}
sub linkpage ($) { #{{{
my $link=shift;
$link=~s/([^-[:alnum:]:+\/._])/$1 eq ' ' ? '_' : "__".ord($1)."__"/eg;
return $link;
} #}}}
sub cgiurl (@) { #{{{
my %params=@_;
return $config{cgiurl}."?".
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join("&amp;", map $_."=".uri_escape_utf8($params{$_}), keys %params);
} #}}}
sub baseurl (;$) { #{{{
my $page=shift;
return "$config{url}/" if ! defined $page;
$page=htmlpage($page);
$page=~s/[^\/]+$//;
$page=~s/[^\/]+\//..\//g;
return $page;
} #}}}
sub abs2rel ($$) { #{{{
# Work around very innefficient behavior in File::Spec if abs2rel
# is passed two relative paths. It's much faster if paths are
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# absolute! (Debian bug #376658; fixed in debian unstable now)
my $path="/".shift;
my $base="/".shift;
require File::Spec;
my $ret=File::Spec->abs2rel($path, $base);
$ret=~s/^// if defined $ret;
return $ret;
} #}}}
sub displaytime ($) { #{{{
my $time=shift;
# strftime doesn't know about encodings, so make sure
# its output is properly treated as utf8
return decode_utf8(POSIX::strftime(
$config{timeformat}, localtime($time)));
} #}}}
sub beautify_url ($) { #{{{
my $url=shift;
$url =~ s!/index.$config{htmlext}$!/!;
$url =~ s!^$!./!; # Browsers don't like empty links...
return $url;
} #}}}
sub urlto ($$) { #{{{
my $to=shift;
my $from=shift;
if (! length $to) {
return beautify_url(baseurl($from));
}
if (! $destsources{$to}) {
$to=htmlpage($to);
}
my $link = abs2rel($to, dirname(htmlpage($from)));
return beautify_url($link);
} #}}}
sub htmllink ($$$;@) { #{{{
my $lpage=shift; # the page doing the linking
my $page=shift; # the page that will contain the link (different for inline)
my $link=shift;
my %opts=@_;
my $bestlink;
if (! $opts{forcesubpage}) {
$bestlink=bestlink($lpage, $link);
}
else {
$bestlink="$lpage/".lc($link);
}
my $linktext;
if (defined $opts{linktext}) {
$linktext=$opts{linktext};
}
else {
$linktext=pagetitle(basename($link));
}
return "<span class=\"selflink\">$linktext</span>"
if length $bestlink && $page eq $bestlink;
if (! $destsources{$bestlink}) {
$bestlink=htmlpage($bestlink);
if (! $destsources{$bestlink}) {
return $linktext unless length $config{cgiurl};
return "<span><a href=\"".
cgiurl(
do => "create",
page => pagetitle(lc($link), 1),
from => $lpage
).
"\">?</a>$linktext</span>"
}
}
$bestlink=abs2rel($bestlink, dirname(htmlpage($page)));
$bestlink=beautify_url($bestlink);
if (! $opts{noimageinline} && isinlinableimage($bestlink)) {
return "<img src=\"$bestlink\" alt=\"$linktext\" />";
}
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if (defined $opts{anchor}) {
$bestlink.="#".$opts{anchor};
}
my @attrs;
if (defined $opts{rel}) {
push @attrs, ' rel="'.$opts{rel}.'"';
}
return "<a href=\"$bestlink\"@attrs>$linktext</a>";
} #}}}
sub htmlize ($$$) { #{{{
my $page=shift;
my $type=shift;
my $content=shift;
if (exists $hooks{htmlize}{$type}) {
$content=$hooks{htmlize}{$type}{call}->(
page => $page,
content => $content,
);
}
else {
error("htmlization of $type not supported");
}
run_hooks(sanitize => sub {
$content=shift->(
page => $page,
content => $content,
);
});
return $content;
} #}}}
sub linkify ($$$) { #{{{
my $lpage=shift; # the page containing the links
my $page=shift; # the page the link will end up on (different for inline)
my $content=shift;
$content =~ s{(\\?)$config{wiki_link_regexp}}{
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defined $2
? ( $1
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? "[[$2|$3".($4 ? "#$4" : "")."]]"
: htmllink($lpage, $page, linkpage($3),
anchor => $4, linktext => pagetitle($2)))
: ( $1
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? "[[$3".($4 ? "#$4" : "")."]]"
: htmllink($lpage, $page, linkpage($3),
anchor => $4))
}eg;
return $content;
} #}}}
my %preprocessing;
our $preprocess_preview=0;
sub preprocess ($$$;$$) { #{{{
my $page=shift; # the page the data comes from
my $destpage=shift; # the page the data will appear in (different for inline)
my $content=shift;
my $scan=shift;
my $preview=shift;
# Using local because it needs to be set within any nested calls
# of this function.
local $preprocess_preview=$preview if defined $preview;
my $handle=sub {
my $escape=shift;
my $command=shift;
my $params=shift;
if (length $escape) {
return "[[$command $params]]";
}
elsif (exists $hooks{preprocess}{$command}) {
return "" if $scan && ! $hooks{preprocess}{$command}{scan};
# Note: preserve order of params, some plugins may
# consider it significant.
my @params;
while ($params =~ m{
(?:(\w+)=)? # 1: named parameter key?
(?:
"""(.*?)""" # 2: triple-quoted value
|
"([^"]+)" # 3: single-quoted value
|
(\S+) # 4: unquoted value
)
(?:\s+|$) # delimiter to next param
}sgx) {
my $key=$1;
my $val;
if (defined $2) {
$val=$2;
$val=~s/\r\n/\n/mg;
$val=~s/^\n+//g;
$val=~s/\n+$//g;
}
elsif (defined $3) {
$val=$3;
}
elsif (defined $4) {
$val=$4;
}
if (defined $key) {
push @params, $key, $val;
}
else {
push @params, $val, '';
}
}
if ($preprocessing{$page}++ > 3) {
# Avoid loops of preprocessed pages preprocessing
# other pages that preprocess them, etc.
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#translators: The first parameter is a
#translators: preprocessor directive name,
#translators: the second a page name, the
#translators: third a number.
return "[[".sprintf(gettext("%s preprocessing loop detected on %s at depth %i"),
$command, $page, $preprocessing{$page}).
"]]";
}
my $ret=$hooks{preprocess}{$command}{call}->(
@params,
page => $page,
destpage => $destpage,
preview => $preprocess_preview,
);
$preprocessing{$page}--;
return $ret;
}
else {
return "[[$command $params]]";
}
};
$content =~ s{
(\\?) # 1: escape?
\[\[ # directive open
(\w+) # 2: command
\s+
( # 3: the parameters..
(?:
(?:\w+=)? # named parameter key?
(?:
""".*?""" # triple-quoted value
|
"[^"]+" # single-quoted value
|
[^\s\]]+ # unquoted value
)
\s* # whitespace or end
# of directive
)
*) # 0 or more parameters
\]\] # directive closed
}{$handle->($1, $2, $3)}sexg;
return $content;
} #}}}
sub filter ($$$) { #{{{
my $page=shift;
my $destpage=shift;
my $content=shift;
run_hooks(filter => sub {
$content=shift->(page => $page, destpage => $destpage,
content => $content);
});
return $content;
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} #}}}
sub indexlink () { #{{{
return "<a href=\"$config{url}\">$config{wikiname}</a>";
} #}}}
my $wikilock;
sub lockwiki (;$) { #{{{
my $wait=@_ ? shift : 1;
# Take an exclusive lock on the wiki to prevent multiple concurrent
# run issues. The lock will be dropped on program exit.
if (! -d $config{wikistatedir}) {
mkdir($config{wikistatedir});
}
open($wikilock, '>', "$config{wikistatedir}/lockfile") ||
error ("cannot write to $config{wikistatedir}/lockfile: $!");
if (! flock($wikilock, 2 | 4)) { # LOCK_EX | LOCK_NB
if ($wait) {
debug("wiki seems to be locked, waiting for lock");
my $wait=600; # arbitrary, but don't hang forever to
# prevent process pileup
for (1..$wait) {
return if flock($wikilock, 2 | 4);
sleep 1;
}
error("wiki is locked; waited $wait seconds without lock being freed (possible stuck process or stale lock?)");
}
else {
return 0;
}
}
return 1;
} #}}}
sub unlockwiki () { #{{{
return close($wikilock);
} #}}}
my $commitlock;
sub commit_hook_enabled () { #{{{
open($commitlock, '+>', "$config{wikistatedir}/commitlock") ||
error("cannot write to $config{wikistatedir}/commitlock: $!");
if (! flock($commitlock, 1 | 4)) { # LOCK_SH | LOCK_NB to test
close($commitlock) || error("failed closing commitlock: $!");
return 0;
}
close($commitlock) || error("failed closing commitlock: $!");
return 1;
} #}}}
sub disable_commit_hook () { #{{{
open($commitlock, '>', "$config{wikistatedir}/commitlock") ||
error("cannot write to $config{wikistatedir}/commitlock: $!");
if (! flock($commitlock, 2)) { # LOCK_EX
error("failed to get commit lock");
}
return 1;
} #}}}
sub enable_commit_hook () { #{{{
return close($commitlock);
} #}}}
sub loadindex () { #{{{
open (my $in, "<", "$config{wikistatedir}/index") || return;
while (<$in>) {
$_=possibly_foolish_untaint($_);
chomp;
my %items;
$items{link}=[];
$items{dest}=[];
foreach my $i (split(/ /, $_)) {
my ($item, $val)=split(/=/, $i, 2);
push @{$items{$item}}, decode_entities($val);
}
next unless exists $items{src}; # skip bad lines for now
my $page=pagename($items{src}[0]);
if (! $config{rebuild}) {
$pagesources{$page}=$items{src}[0];
$pagemtime{$page}=$items{mtime}[0];
$oldlinks{$page}=[@{$items{link}}];
$links{$page}=[@{$items{link}}];
$depends{$page}=$items{depends}[0] if exists $items{depends};
$destsources{$_}=$page foreach @{$items{dest}};
$renderedfiles{$page}=[@{$items{dest}}];
$pagecase{lc $page}=$page;
}
$oldrenderedfiles{$page}=[@{$items{dest}}];
$pagectime{$page}=$items{ctime}[0];
}
return close($in);
} #}}}
sub saveindex () { #{{{
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run_hooks(savestate => sub { shift->() });
if (! -d $config{wikistatedir}) {
mkdir($config{wikistatedir});
}
my $newfile="$config{wikistatedir}/index.new";
my $cleanup = sub { unlink($newfile) };
open (my $out, '>', $newfile) || error("cannot write to $newfile: $!", $cleanup);
foreach my $page (keys %pagemtime) {
next unless $pagemtime{$page};
my $line="mtime=$pagemtime{$page} ".
"ctime=$pagectime{$page} ".
"src=$pagesources{$page}";
$line.=" dest=$_" foreach @{$renderedfiles{$page}};
my %count;
$line.=" link=$_" foreach grep { ++$count{$_} == 1 } @{$links{$page}};
if (exists $depends{$page}) {
$line.=" depends=".encode_entities($depends{$page}, " \t\n");
}
print $out $line."\n" || error("failed writing to $newfile: $!", $cleanup);
}
close $out || error("failed saving to $newfile: $!", $cleanup);
rename($newfile, "$config{wikistatedir}/index") ||
error("failed renaming $newfile to $config{wikistatedir}/index", $cleanup);
return 1;
} #}}}
sub template_file ($) { #{{{
my $template=shift;
foreach my $dir ($config{templatedir}, "$installdir/share/ikiwiki/templates") {
return "$dir/$template" if -e "$dir/$template";
}
return;
} #}}}
sub template_params (@) { #{{{
my $filename=template_file(shift);
if (! defined $filename) {
return if wantarray;
return "";
}
my @ret=(
filter => sub {
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my $text_ref = shift;
${$text_ref} = Encode::decode_utf8(${$text_ref});
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},
filename => $filename,
loop_context_vars => 1,
die_on_bad_params => 0,
@_
);
return wantarray ? @ret : {@ret};
} #}}}
sub template ($;@) { #{{{
require HTML::Template;
return HTML::Template->new(template_params(@_));
} #}}}
sub misctemplate ($$;@) { #{{{
my $title=shift;
my $pagebody=shift;
my $template=template("misc.tmpl");
$template->param(
title => $title,
indexlink => indexlink(),
wikiname => $config{wikiname},
pagebody => $pagebody,
baseurl => baseurl(),
@_,
);
run_hooks(pagetemplate => sub {
shift->(page => "", destpage => "", template => $template);
});
return $template->output;
}#}}}
sub hook (@) { # {{{
my %param=@_;
if (! exists $param{type} || ! ref $param{call} || ! exists $param{id}) {
error 'hook requires type, call, and id parameters';
}
return if $param{no_override} && exists $hooks{$param{type}}{$param{id}};
$hooks{$param{type}}{$param{id}}=\%param;
return 1;
} # }}}
sub run_hooks ($$) { # {{{
# Calls the given sub for each hook of the given type,
# passing it the hook function to call.
my $type=shift;
my $sub=shift;
if (exists $hooks{$type}) {
my @deferred;
foreach my $id (keys %{$hooks{$type}}) {
if ($hooks{$type}{$id}{last}) {
push @deferred, $id;
next;
}
$sub->($hooks{$type}{$id}{call});
}
foreach my $id (@deferred) {
$sub->($hooks{$type}{$id}{call});
}
}
return 1;
} #}}}
sub globlist_to_pagespec ($) { #{{{
my @globlist=split(' ', shift);
my (@spec, @skip);
foreach my $glob (@globlist) {
if ($glob=~/^!(.*)/) {
push @skip, $glob;
}
else {
push @spec, $glob;
}
}
my $spec=join(' or ', @spec);
if (@skip) {
my $skip=join(' and ', @skip);
if (length $spec) {
$spec="$skip and ($spec)";
}
else {
$spec=$skip;
}
}
return $spec;
} #}}}
sub is_globlist ($) { #{{{
my $s=shift;
return ( $s =~ /[^\s]+\s+([^\s]+)/ && $1 ne "and" && $1 ne "or" );
} #}}}
sub safequote ($) { #{{{
my $s=shift;
$s=~s/[{}]//g;
return "q{$s}";
} #}}}
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sub add_depends ($$) { #{{{
my $page=shift;
my $pagespec=shift;
if (! exists $depends{$page}) {
$depends{$page}=$pagespec;
}
else {
$depends{$page}=pagespec_merge($depends{$page}, $pagespec);
}
return 1;
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} # }}}
sub file_pruned ($$) { #{{{
require File::Spec;
my $file=File::Spec->canonpath(shift);
my $base=File::Spec->canonpath(shift);
$file =~ s#^\Q$base\E/*##;
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my $regexp='('.join('|', @{$config{wiki_file_prune_regexps}}).')';
return $file =~ m/$regexp/;
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} #}}}
sub gettext { #{{{
# Only use gettext in the rare cases it's needed.
if (exists $ENV{LANG} || exists $ENV{LC_ALL} || exists $ENV{LC_MESSAGES}) {
if (! $gettext_obj) {
$gettext_obj=eval q{
use Locale::gettext q{textdomain};
Locale::gettext->domain('ikiwiki')
};
if ($@) {
print STDERR "$@";
$gettext_obj=undef;
return shift;
}
}
return $gettext_obj->get(shift);
}
else {
return shift;
}
} #}}}
sub pagespec_merge ($$) { #{{{
my $a=shift;
my $b=shift;
return $a if $a eq $b;
# Support for old-style GlobLists.
if (is_globlist($a)) {
$a=globlist_to_pagespec($a);
}
if (is_globlist($b)) {
$b=globlist_to_pagespec($b);
}
return "($a) or ($b)";
} #}}}
sub pagespec_translate ($) { #{{{
# This assumes that $page is in scope in the function
# that evalulates the translated pagespec code.
my $spec=shift;
# Support for old-style GlobLists.
if (is_globlist($spec)) {
$spec=globlist_to_pagespec($spec);
}
# Convert spec to perl code.
my $code="";
while ($spec=~m{
\s* # ignore whitespace
( # 1: match a single word
\! # !
|
\( # (
|
\) # )
|
\w+\([^\)]*\) # command(params)
|
[^\s()]+ # any other text
)
\s* # ignore whitespace
}igx) {
my $word=$1;
if (lc $word eq 'and') {
$code.=' &&';
}
elsif (lc $word eq 'or') {
$code.=' ||';
}
elsif ($word eq "(" || $word eq ")" || $word eq "!") {
$code.=' '.$word;
}
elsif ($word =~ /^(\w+)\((.*)\)$/) {
if (exists $IkiWiki::PageSpec::{"match_$1"}) {
$code.="IkiWiki::PageSpec::match_$1(\$page, ".safequote($2).", \@params)";
}
else {
$code.=' 0';
}
}
else {
$code.=" IkiWiki::PageSpec::match_glob(\$page, ".safequote($word).", \@params)";
}
}
return $code;
} #}}}
sub pagespec_match ($$;@) { #{{{
my $page=shift;
my $spec=shift;
my @params=@_;
# Backwards compatability with old calling convention.
if (@params == 1) {
unshift @params, 'location';
}
my $ret=eval pagespec_translate($spec);
return IkiWiki::FailReason->new('syntax error') if $@;
return $ret;
} #}}}
package IkiWiki::FailReason;
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use overload ( #{{{
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'""' => sub { ${$_[0]} },
'0+' => sub { 0 },
'!' => sub { bless $_[0], 'IkiWiki::SuccessReason'},
fallback => 1,
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); #}}}
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sub new { #{{{
return bless \$_[1], $_[0];
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} #}}}
package IkiWiki::SuccessReason;
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use overload ( #{{{
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'""' => sub { ${$_[0]} },
'0+' => sub { 1 },
'!' => sub { bless $_[0], 'IkiWiki::FailReason'},
fallback => 1,
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); #}}}
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sub new { #{{{
return bless \$_[1], $_[0];
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}; #}}}
package IkiWiki::PageSpec;
sub match_glob ($$;@) { #{{{
my $page=shift;
my $glob=shift;
my %params=@_;
my $from=exists $params{location} ? $params{location} : '';
# relative matching
if ($glob =~ m!^\./!) {
$from=~s#/?[^/]+$##;
$glob=~s#^\./##;
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$glob="$from/$glob" if length $from;
}
# turn glob into safe regexp
$glob=quotemeta($glob);
$glob=~s/\\\*/.*/g;
$glob=~s/\\\?/./g;
if ($page=~/^$glob$/i) {
return IkiWiki::SuccessReason->new("$glob matches $page");
}
else {
return IkiWiki::FailReason->new("$glob does not match $page");
}
} #}}}
sub match_link ($$;@) { #{{{
my $page=shift;
my $link=lc(shift);
my %params=@_;
my $from=exists $params{location} ? $params{location} : '';
# relative matching
if ($link =~ m!^\.! && defined $from) {
$from=~s#/?[^/]+$##;
$link=~s#^\./##;
$link="$from/$link" if length $from;
}
my $links = $IkiWiki::links{$page};
return IkiWiki::FailReason->new("$page has no links") unless $links && @{$links};
my $bestlink = IkiWiki::bestlink($from, $link);
foreach my $p (@{$links}) {
if (length $bestlink) {
return IkiWiki::SuccessReason->new("$page links to $link")
if $bestlink eq IkiWiki::bestlink($page, $p);
}
else {
return IkiWiki::SuccessReason->new("$page links to page matching $link")
if match_glob($p, $link, %params);
}
}
return IkiWiki::FailReason->new("$page does not link to $link");
} #}}}
sub match_backlink ($$;@) { #{{{
return match_link($_[1], $_[0], @_);
} #}}}
sub match_created_before ($$;@) { #{{{
my $page=shift;
my $testpage=shift;
if (exists $IkiWiki::pagectime{$testpage}) {
if ($IkiWiki::pagectime{$page} < $IkiWiki::pagectime{$testpage}) {
return IkiWiki::SuccessReason->new("$page created before $testpage");
}
else {
return IkiWiki::FailReason->new("$page not created before $testpage");
}
}
else {
return IkiWiki::FailReason->new("$testpage has no ctime");
}
} #}}}
sub match_created_after ($$;@) { #{{{
my $page=shift;
my $testpage=shift;
if (exists $IkiWiki::pagectime{$testpage}) {
if ($IkiWiki::pagectime{$page} > $IkiWiki::pagectime{$testpage}) {
return IkiWiki::SuccessReason->new("$page created after $testpage");
}
else {
return IkiWiki::FailReason->new("$page not created after $testpage");
}
}
else {
return IkiWiki::FailReason->new("$testpage has no ctime");
}
} #}}}
sub match_creation_day ($$;@) { #{{{
if ((gmtime($IkiWiki::pagectime{shift()}))[3] == shift) {
return IkiWiki::SuccessReason->new('creation_day matched');
}
else {
return IkiWiki::FailReason->new('creation_day did not match');
}
} #}}}
sub match_creation_month ($$;@) { #{{{
if ((gmtime($IkiWiki::pagectime{shift()}))[4] + 1 == shift) {
return IkiWiki::SuccessReason->new('creation_month matched');
}
else {
return IkiWiki::FailReason->new('creation_month did not match');
}
} #}}}
sub match_creation_year ($$;@) { #{{{
if ((gmtime($IkiWiki::pagectime{shift()}))[5] + 1900 == shift) {
return IkiWiki::SuccessReason->new('creation_year matched');
}
else {
return IkiWiki::FailReason->new('creation_year did not match');
}
} #}}}
sub match_user ($$;@) { #{{{
shift;
my $user=shift;
my %params=@_;
return IkiWiki::FailReason->new('cannot match user')
unless exists $params{user};
if ($user eq $params{user}) {
return IkiWiki::SuccessReason->new("user is $user")
}
else {
return IkiWiki::FailReason->new("user is not $user");
}
} #}}}
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