ikiwiki/IkiWiki.pm

1825 lines
39 KiB
Perl

#!/usr/bin/perl
package IkiWiki;
use warnings;
use strict;
use Encode;
use HTML::Entities;
use URI::Escape q{uri_escape_utf8};
use POSIX;
use Storable;
use open qw{:utf8 :std};
use vars qw{%config %links %oldlinks %pagemtime %pagectime %pagecase
%pagestate %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
add_underlay
%config %links %pagestate %renderedfiles
%pagesources %destsources);
our $VERSION = 2.00; # plugin interface version, next is ikiwiki version
our $version='unknown'; # VERSION_AUTOREPLACE done by Makefile, DNE
my $installdir=''; # INSTALLDIR_AUTOREPLACE done by Makefile, DNE
# Optimisation.
use Memoize;
memoize("abs2rel");
memoize("pagespec_translate");
memoize("file_pruned");
sub getsetup () { #{{{
wikiname => {
type => "string",
default => "wiki",
description => "name of the wiki",
safe => 1,
rebuild => 1,
},
srcdir => {
type => "string",
default => undef,
example => "$ENV{HOME}/wiki",
description => "where the source of the wiki is located",
safe => 0, # path
rebuild => 1,
},
destdir => {
type => "string",
default => undef,
example => "/var/www/wiki",
description => "where to build the wiki",
safe => 0, # path
rebuild => 1,
},
adminuser => {
type => "string",
default => [],
description => "user names of wiki admins",
safe => 1,
rebuild => 0,
},
adminemail => {
type => "string",
default => undef,
example => 'me@example.com',
description => "contact email for wiki",
safe => 1,
rebuild => 0,
},
url => {
type => "string",
default => '',
example => "http://example.com/wiki",
description => "base url to the wiki",
safe => 1,
rebuild => 1,
},
cgiurl => {
type => "string",
default => '',
example => "http://example.com/wiki/ikiwiki.cgi",
description => "url to the ikiwiki.cgi",
safe => 1,
rebuild => 1,
},
cgi_wrapper => {
type => "string",
default => '',
example => "/var/www/wiki/ikiwiki.cgi",
description => "cgi executable to generate",
safe => 0, # file
rebuild => 0,
},
cgi_wrappermode => {
type => "string",
default => '06755',
description => "mode for cgi_wrapper (can safely be made suid)",
safe => 0,
rebuild => 0,
},
rcs => {
type => "string",
default => '',
description => "rcs backend to use",
safe => 0, # don't allow overriding
rebuild => 0,
},
default_plugins => {
type => "internal",
default => [qw{mdwn link inline htmlscrubber passwordauth
openid signinedit lockedit conditional
recentchanges parentlinks}],
description => "plugins to enable by default",
safe => 0,
rebuild => 1,
},
add_plugins => {
type => "string",
default => [],
description => "plugins to add to the default configuration",
safe => 1,
rebuild => 1,
},
disable_plugins => {
type => "string",
default => [],
description => "plugins to disable",
safe => 1,
rebuild => 1,
},
templatedir => {
type => "string",
default => "$installdir/share/ikiwiki/templates",
description => "location of template files",
safe => 0, # path
rebuild => 1,
},
underlaydir => {
type => "string",
default => "$installdir/share/ikiwiki/basewiki",
description => "base wiki source location",
safe => 0, # path
rebuild => 0,
},
wrappers => {
type => "internal",
default => [],
description => "wrappers to generate",
safe => 0,
rebuild => 0,
},
underlaydirs => {
type => "internal",
default => [],
description => "additional underlays to use",
safe => 0,
rebuild => 0,
},
verbose => {
type => "boolean",
default => 0,
description => "display verbose messages when building?",
safe => 1,
rebuild => 0,
},
syslog => {
type => "boolean",
default => 0,
description => "log to syslog?",
safe => 1,
rebuild => 0,
},
usedirs => {
type => "boolean",
default => 1,
description => "create output files named page/index.html?",
safe => 0, # changing requires manual transition
rebuild => 1,
},
prefix_directives => {
type => "boolean",
default => 0,
description => "use '!'-prefixed preprocessor directives?",
safe => 0, # changing requires manual transition
rebuild => 1,
},
discussion => {
type => "boolean",
default => 1,
description => "enable Discussion pages?",
safe => 1,
rebuild => 1,
},
default_pageext => {
type => "string",
default => "mdwn",
description => "extension to use for new pages",
safe => 0, # not sanitized
rebuild => 0,
},
htmlext => {
type => "string",
default => "html",
description => "extension to use for html files",
safe => 0, # not sanitized
rebuild => 1,
},
timeformat => {
type => "string",
default => '%c',
description => "strftime format string to display date",
safe => 1,
rebuild => 1,
},
locale => {
type => "string",
default => undef,
example => "en_US.UTF-8",
description => "UTF-8 locale to use",
safe => 0,
rebuild => 1,
},
sslcookie => {
type => "boolean",
default => 0,
description => "only send cookies over SSL connections?",
safe => 1,
rebuild => 0,
},
userdir => {
type => "string",
default => "",
example => "users",
description => "put user pages below specified page",
safe => 1,
rebuild => 1,
},
numbacklinks => {
type => "integer",
default => 10,
description => "how many backlinks to show before hiding excess (0 to show all)",
safe => 1,
rebuild => 1,
},
hardlink => {
type => "boolean",
default => 0,
description => "attempt to hardlink source files? (optimisation for large files)",
safe => 0, # paranoia
rebuild => 0,
},
umask => {
type => "integer",
description => "",
example => "022",
description => "force ikiwiki to use a particular umask",
safe => 0, # paranoia
rebuild => 0,
},
libdir => {
type => "string",
default => "",
example => "$ENV{HOME}/.ikiwiki/",
description => "extra library and plugin directory",
safe => 0, # directory
rebuild => 0,
},
ENV => {
type => "string",
default => {},
description => "environment variables",
safe => 0, # paranoia
rebuild => 0,
},
exclude => {
type => "string",
default => undef,
example => '\.wav$',
description => "regexp of source files to ignore",
safe => 0, # regexp
rebuild => 1,
},
wiki_file_prune_regexps => {
type => "internal",
default => [qr/(^|\/)\.\.(\/|$)/, qr/^\./, qr/\/\./,
qr/\.x?html?$/, qr/\.ikiwiki-new$/,
qr/(^|\/).svn\//, qr/.arch-ids\//, qr/{arch}\//,
qr/(^|\/)_MTN\//,
qr/\.dpkg-tmp$/],
description => "regexps of source files to ignore",
safe => 0,
rebuild => 1,
},
wiki_file_regexp => {
type => "internal",
default => qr/(^[-[:alnum:]_.:\/+]+$)/,
description => "regexp of legal source files",
safe => 0,
rebuild => 1,
},
web_commit_regexp => {
type => "internal",
default => qr/^web commit (by (.*?(?=: |$))|from (\d+\.\d+\.\d+\.\d+)):?(.*)/,
description => "regexp to parse web commits from logs",
safe => 0,
rebuild => 0,
},
cgi => {
type => "internal",
default => 0,
description => "run as a cgi",
safe => 0,
rebuild => 0,
},
cgi_disable_uploads => {
type => "internal",
default => 1,
description => "whether CGI should accept file uploads",
safe => 0,
rebuild => 0,
},
post_commit => {
type => "internal",
default => 0,
description => "run as a post-commit hook",
safe => 0,
rebuild => 0,
},
rebuild => {
type => "internal",
default => 0,
description => "running in rebuild mode",
safe => 0,
rebuild => 0,
},
refresh => {
type => "internal",
default => 0,
description => "running in refresh mode",
safe => 0,
rebuild => 0,
},
getctime => {
type => "internal",
default => 0,
description => "running in getctime mode",
safe => 0,
rebuild => 0,
},
w3mmode => {
type => "internal",
default => 0,
description => "running in w3mmode",
safe => 0,
rebuild => 0,
},
setup => {
type => "internal",
default => undef,
description => "setup file to read",
safe => 0,
rebuild => 0,
},
} #}}}
sub defaultconfig () { #{{{
my %s=getsetup();
my @ret;
foreach my $key (keys %s) {
push @ret, $key, $s{$key}->{default};
}
use Data::Dumper;
return @ret;
} #}}}
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}) {
if (POSIX::setlocale(&POSIX::LC_ALL, $config{locale})) {
$ENV{LANG}=$config{locale};
$gettext_obj=undef;
}
}
if (ref $config{ENV} eq 'HASH') {
foreach my $val (keys %{$config{ENV}}) {
$ENV{$val}=$config{ENV}{$val};
}
}
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 (defined $config{umask}) {
umask(possibly_foolish_untaint($config{umask}));
}
run_hooks(checkconfig => sub { shift->() });
return 1;
} #}}}
sub listplugins () { #{{{
my %ret;
foreach my $dir (@INC, $config{libdir}) {
next unless defined $dir && length $dir;
foreach my $file (glob("$dir/IkiWiki/Plugin/*.pm")) {
my ($plugin)=$file=~/.*\/(.*)\.pm$/;
$ret{$plugin}=1;
}
}
foreach my $dir ($config{libdir}, "$installdir/lib/ikiwiki") {
next unless defined $dir && length $dir;
foreach my $file (glob("$dir/plugins/*")) {
$ret{basename($file)}=1 if -x $file;
}
}
return keys %ret;
} #}}}
sub loadplugins () { #{{{
if (defined $config{libdir} && length $config{libdir}) {
unshift @INC, possibly_foolish_untaint($config{libdir});
}
loadplugin($_) foreach @{$config{default_plugins}}, @{$config{add_plugins}};
if ($config{rcs}) {
if (exists $IkiWiki::hooks{rcs}) {
error(gettext("cannot use multiple rcs plugins"));
}
loadplugin($config{rcs});
}
if (! exists $IkiWiki::hooks{rcs}) {
loadplugin("norcs");
}
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 (defined $config{libdir} ? possibly_foolish_untaint($config{libdir}) : undef,
"$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;
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 ($$) { #{{{
my $type=shift;
if ($config{syslog}) {
require Sys::Syslog;
if (! $log_open) {
Sys::Syslog::setlogsock('unix');
Sys::Syslog::openlog('ikiwiki', '', 'user');
$log_open=1;
}
return eval {
Sys::Syslog::syslog($type, "[$config{wikiname}] %s", join(" ", @_));
};
}
elsif (! $config{cgi}) {
return print "@_\n";
}
else {
return print STDERR "@_\n";
}
} #}}}
sub possibly_foolish_untaint ($) { #{{{
my $tainted=shift;
my ($untainted)=$tainted=~/(.*)/s;
return $untainted;
} #}}}
sub basename ($) { #{{{
my $file=shift;
$file=~s!.*/+!!;
return $file;
} #}}}
sub dirname ($) { #{{{
my $file=shift;
$file=~s!/*[^/]+$!!;
return $file;
} #}}}
sub pagetype ($) { #{{{
my $page=shift;
if ($page =~ /\.([^.]+)$/) {
return $1 if exists $hooks{htmlize}{$1};
}
return;
} #}}}
sub isinternal ($) { #{{{
my $page=shift;
return exists $pagesources{$page} &&
$pagesources{$page} =~ /\._([^.]+)$/;
} #}}}
sub pagename ($) { #{{{
my $file=shift;
my $type=pagetype($file);
my $page=$file;
$page=~s/\Q.$type\E*$// if defined $type;
return $page;
} #}}}
sub targetpage ($$) { #{{{
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_stat { #{{{
my $file=shift;
my $nothrow=shift;
return "$config{srcdir}/$file", stat(_) if -e "$config{srcdir}/$file";
foreach my $dir (@{$config{underlaydirs}}, $config{underlaydir}) {
return "$dir/$file", stat(_) if -e "$dir/$file";
}
error("internal error: $file cannot be found in $config{srcdir} or underlay") unless $nothrow;
return;
} #}}}
sub srcfile ($;$) { #{{{
return (srcfile_stat(@_))[0];
} #}}}
sub add_underlay ($) { #{{{
my $dir=shift;
if ($dir=~/^\//) {
unshift @{$config{underlaydirs}}, $dir;
}
else {
unshift @{$config{underlaydirs}}, "$config{underlaydir}/../$dir";
}
return 1;
} #}}}
sub readfile ($;$$) { #{{{
my $file=shift;
my $binary=shift;
my $wantfd=shift;
if (-l $file) {
error("cannot read a symlink ($file)");
}
local $/=undef;
open (my $in, "<", $file) || error("failed to read $file: $!");
binmode($in) if ($binary);
return \*$in if $wantfd;
my $ret=<$in>;
close $in || error("failed to read $file: $!");
return $ret;
} #}}}
sub prep_writefile ($$) { #{{{
my $file=shift;
my $destdir=shift;
my $test=$file;
while (length $test) {
if (-l "$destdir/$test") {
error("cannot write to a symlink ($test)");
}
$test=dirname($test);
}
my $dir=dirname("$destdir/$file");
if (! -d $dir) {
my $d="";
foreach my $s (split(m!/+!, $dir)) {
$d.="$s/";
if (! -d $d) {
mkdir($d) || error("failed to create directory $d: $!");
}
}
}
return 1;
} #}}}
sub writefile ($$$;$$) { #{{{
my $file=shift; # can include subdirs
my $destdir=shift; # directory to put file in
my $content=shift;
my $binary=shift;
my $writer=shift;
prep_writefile($file, $destdir);
my $newfile="$destdir/$file.ikiwiki-new";
if (-l $newfile) {
error("cannot write to a symlink ($newfile)");
}
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="";
}
$link=~s/\/$//;
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}."?".
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 ($$) { #{{{
# Work around very innefficient behavior in File::Spec if abs2rel
# is passed two relative paths. It's much faster if paths are
# absolute! (Debian bug #376658; fixed in debian unstable now)
my $path="/".shift;
my $base="/".shift;
require File::Spec;
my $ret=File::Spec->abs2rel($path, $base);
$ret=~s/^// if defined $ret;
return $ret;
} #}}}
sub displaytime ($;$) { #{{{
my $time=shift;
my $format=shift;
if (! defined $format) {
$format=$config{timeformat};
}
# strftime doesn't know about encodings, so make sure
# its output is properly treated as utf8
return decode_utf8(POSIX::strftime($format, localtime($time)));
} #}}}
sub beautify_urlpath ($) { #{{{
my $url=shift;
if ($config{usedirs}) {
$url =~ s!/index.$config{htmlext}$!/!;
}
# Ensure url is not an empty link, and
# if it's relative, make that explicit to avoid colon confusion.
if ($url !~ /^\//) {
$url="./$url";
}
return $url;
} #}}}
sub urlto ($$;$) { #{{{
my $to=shift;
my $from=shift;
my $absolute=shift;
if (! length $to) {
return beautify_urlpath(baseurl($from)."index.$config{htmlext}");
}
if (! $destsources{$to}) {
$to=htmlpage($to);
}
if ($absolute) {
return $config{url}.beautify_urlpath("/".$to);
}
my $link = abs2rel($to, dirname(htmlpage($from)));
return beautify_urlpath($link);
} #}}}
sub htmllink ($$$;@) { #{{{
my $lpage=shift; # the page doing the linking
my $page=shift; # the page that will contain the link (different for inline)
my $link=shift;
my %opts=@_;
$link=~s/\/$//;
my $bestlink;
if (! $opts{forcesubpage}) {
$bestlink=bestlink($lpage, $link);
}
else {
$bestlink="$lpage/".lc($link);
}
my $linktext;
if (defined $opts{linktext}) {
$linktext=$opts{linktext};
}
else {
$linktext=pagetitle(basename($link));
}
return "<span class=\"selflink\">$linktext</span>"
if length $bestlink && $page eq $bestlink &&
! defined $opts{anchor};
if (! $destsources{$bestlink}) {
$bestlink=htmlpage($bestlink);
if (! $destsources{$bestlink}) {
return $linktext unless length $config{cgiurl};
return "<span class=\"createlink\"><a href=\"".
cgiurl(
do => "create",
page => lc($link),
from => $lpage
).
"\" rel=\"nofollow\">?</a>$linktext</span>"
}
}
$bestlink=abs2rel($bestlink, dirname(htmlpage($page)));
$bestlink=beautify_urlpath($bestlink);
if (! $opts{noimageinline} && isinlinableimage($bestlink)) {
return "<img src=\"$bestlink\" alt=\"$linktext\" />";
}
if (defined $opts{anchor}) {
$bestlink.="#".$opts{anchor};
}
my @attrs;
if (defined $opts{rel}) {
push @attrs, ' rel="'.$opts{rel}.'"';
}
if (defined $opts{class}) {
push @attrs, ' class="'.$opts{class}.'"';
}
return "<a href=\"$bestlink\"@attrs>$linktext</a>";
} #}}}
sub userlink ($) { #{{{
my $user=shift;
my $oiduser=eval { openiduser($user) };
if (defined $oiduser) {
return "<a href=\"$user\">$oiduser</a>";
}
else {
eval q{use CGI 'escapeHTML'};
error($@) if $@;
return htmllink("", "", escapeHTML(
length $config{userdir} ? $config{userdir}."/".$user : $user
), noimageinline => 1);
}
} #}}}
sub htmlize ($$$$) { #{{{
my $page=shift;
my $destpage=shift;
my $type=shift;
my $content=shift;
my $oneline = $content !~ /\n/;
if (exists $hooks{htmlize}{$type}) {
$content=$hooks{htmlize}{$type}{call}->(
page => $page,
content => $content,
);
}
else {
error("htmlization of $type not supported");
}
run_hooks(sanitize => sub {
$content=shift->(
page => $page,
destpage => $destpage,
content => $content,
);
});
if ($oneline) {
# hack to get rid of enclosing junk added by markdown
# and other htmlizers
$content=~s/^<p>//i;
$content=~s/<\/p>$//i;
chomp $content;
}
return $content;
} #}}}
sub linkify ($$$) { #{{{
my $page=shift;
my $destpage=shift;
my $content=shift;
run_hooks(linkify => sub {
$content=shift->(
page => $page,
destpage => $destpage,
content => $content,
);
});
return $content;
} #}}}
our %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 $prefix=shift;
my $command=shift;
my $params=shift;
if (length $escape) {
return "[[$prefix$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{$page}++ > 3) {
# Avoid loops of preprocessed pages preprocessing
# other pages that preprocess them, etc.
return "[[!$command <span class=\"error\">".
sprintf(gettext("preprocessing loop detected on %s at depth %i"),
$page, $preprocessing{$page}).
"</span>]]";
}
my $ret;
if (! $scan) {
$ret=eval {
$hooks{preprocess}{$command}{call}->(
@params,
page => $page,
destpage => $destpage,
preview => $preprocess_preview,
);
};
if ($@) {
chomp $@;
$ret="[[!$command <span class=\"error\">".
gettext("Error").": $@"."</span>]]";
}
}
else {
# use void context during scan pass
eval {
$hooks{preprocess}{$command}{call}->(
@params,
page => $page,
destpage => $destpage,
preview => $preprocess_preview,
);
};
$ret="";
}
$preprocessing{$page}--;
return $ret;
}
else {
return "[[$prefix$command $params]]";
}
};
my $regex;
if ($config{prefix_directives}) {
$regex = qr{
(\\?) # 1: escape?
\[\[(!) # directive open; 2: prefix
([-\w]+) # 3: command
( # 4: the parameters..
\s+ # Must have space if parameters present
(?:
(?:[-\w]+=)? # named parameter key?
(?:
""".*?""" # triple-quoted value
|
"[^"]+" # single-quoted value
|
[^\s\]]+ # unquoted value
)
\s* # whitespace or end
# of directive
)
*)? # 0 or more parameters
\]\] # directive closed
}sx;
}
else {
$regex = qr{
(\\?) # 1: escape?
\[\[(!?) # directive open; 2: optional prefix
([-\w]+) # 3: command
\s+
( # 4: the parameters..
(?:
(?:[-\w]+=)? # named parameter key?
(?:
""".*?""" # triple-quoted value
|
"[^"]+" # single-quoted value
|
[^\s\]]+ # unquoted value
)
\s* # whitespace or end
# of directive
)
*) # 0 or more parameters
\]\] # directive closed
}sx;
}
$content =~ s{$regex}{$handle->($1, $2, $3, $4)}eg;
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;
} #}}}
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) if $wikilock;
return;
} #}}}
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) if $commitlock;
return;
} #}}}
sub loadindex () { #{{{
%oldrenderedfiles=%pagectime=();
if (! $config{rebuild}) {
%pagesources=%pagemtime=%oldlinks=%links=%depends=
%destsources=%renderedfiles=%pagecase=%pagestate=();
}
my $in;
if (! open ($in, "<", "$config{wikistatedir}/indexdb")) {
if (-e "$config{wikistatedir}/index") {
system("ikiwiki-transition", "indexdb", $config{srcdir});
open ($in, "<", "$config{wikistatedir}/indexdb") || return;
}
else {
return;
}
}
my $ret=Storable::fd_retrieve($in);
if (! defined $ret) {
return 0;
}
my %index=%$ret;
foreach my $src (keys %index) {
my %d=%{$index{$src}};
my $page=pagename($src);
$pagectime{$page}=$d{ctime};
if (! $config{rebuild}) {
$pagesources{$page}=$src;
$pagemtime{$page}=$d{mtime};
$renderedfiles{$page}=$d{dest};
if (exists $d{links} && ref $d{links}) {
$links{$page}=$d{links};
$oldlinks{$page}=[@{$d{links}}];
}
if (exists $d{depends}) {
$depends{$page}=$d{depends};
}
if (exists $d{state}) {
$pagestate{$page}=$d{state};
}
}
$oldrenderedfiles{$page}=[@{$d{dest}}];
}
foreach my $page (keys %pagesources) {
$pagecase{lc $page}=$page;
}
foreach my $page (keys %renderedfiles) {
$destsources{$_}=$page foreach @{$renderedfiles{$page}};
}
return close($in);
} #}}}
sub saveindex () { #{{{
run_hooks(savestate => sub { shift->() });
my %hookids;
foreach my $type (keys %hooks) {
$hookids{$_}=1 foreach keys %{$hooks{$type}};
}
my @hookids=keys %hookids;
if (! -d $config{wikistatedir}) {
mkdir($config{wikistatedir});
}
my $newfile="$config{wikistatedir}/indexdb.new";
my $cleanup = sub { unlink($newfile) };
open (my $out, '>', $newfile) || error("cannot write to $newfile: $!", $cleanup);
my %index;
foreach my $page (keys %pagemtime) {
next unless $pagemtime{$page};
my $src=$pagesources{$page};
$index{$src}={
ctime => $pagectime{$page},
mtime => $pagemtime{$page},
dest => $renderedfiles{$page},
links => $links{$page},
};
if (exists $depends{$page}) {
$index{$src}{depends} = $depends{$page};
}
if (exists $pagestate{$page}) {
foreach my $id (@hookids) {
foreach my $key (keys %{$pagestate{$page}{$id}}) {
$index{$src}{state}{$id}{$key}=$pagestate{$page}{$id}{$key};
}
}
}
}
my $ret=Storable::nstore_fd(\%index, $out);
return if ! defined $ret || ! $ret;
close $out || error("failed saving to $newfile: $!", $cleanup);
rename($newfile, "$config{wikistatedir}/indexdb") ||
error("failed renaming $newfile to $config{wikistatedir}/indexdb", $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 {
my $text_ref = shift;
${$text_ref} = decode_utf8(${$text_ref});
},
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 ($$) { # {{{
# Calls the given sub for each hook of the given type,
# passing it the hook function to call.
my $type=shift;
my $sub=shift;
if (exists $hooks{$type}) {
my @deferred;
foreach my $id (keys %{$hooks{$type}}) {
if ($hooks{$type}{$id}{last}) {
push @deferred, $id;
next;
}
$sub->($hooks{$type}{$id}{call});
}
foreach my $id (@deferred) {
$sub->($hooks{$type}{$id}{call});
}
}
return 1;
} #}}}
sub rcs_update () { #{{{
$hooks{rcs}{rcs_update}{call}->(@_);
} #}}}
sub rcs_prepedit ($) { #{{{
$hooks{rcs}{rcs_prepedit}{call}->(@_);
} #}}}
sub rcs_commit ($$$;$$) { #{{{
$hooks{rcs}{rcs_commit}{call}->(@_);
} #}}}
sub rcs_commit_staged ($$$) { #{{{
$hooks{rcs}{rcs_commit_staged}{call}->(@_);
} #}}}
sub rcs_add ($) { #{{{
$hooks{rcs}{rcs_add}{call}->(@_);
} #}}}
sub rcs_remove ($) { #{{{
$hooks{rcs}{rcs_remove}{call}->(@_);
} #}}}
sub rcs_rename ($$) { #{{{
$hooks{rcs}{rcs_rename}{call}->(@_);
} #}}}
sub rcs_recentchanges ($) { #{{{
$hooks{rcs}{rcs_recentchanges}{call}->(@_);
} #}}}
sub rcs_diff ($) { #{{{
$hooks{rcs}{rcs_diff}{call}->(@_);
} #}}}
sub rcs_getctime ($) { #{{{
$hooks{rcs}{rcs_getctime}{call}->(@_);
} #}}}
sub globlist_to_pagespec ($) { #{{{
my @globlist=split(' ', shift);
my (@spec, @skip);
foreach my $glob (@globlist) {
if ($glob=~/^!(.*)/) {
push @skip, $glob;
}
else {
push @spec, $glob;
}
}
my $spec=join(' or ', @spec);
if (@skip) {
my $skip=join(' and ', @skip);
if (length $spec) {
$spec="$skip and ($spec)";
}
else {
$spec=$skip;
}
}
return $spec;
} #}}}
sub is_globlist ($) { #{{{
my $s=shift;
return ( $s =~ /[^\s]+\s+([^\s]+)/ && $1 ne "and" && $1 ne "or" );
} #}}}
sub safequote ($) { #{{{
my $s=shift;
$s=~s/[{}]//g;
return "q{$s}";
} #}}}
sub add_depends ($$) { #{{{
my $page=shift;
my $pagespec=shift;
return unless pagespec_valid($pagespec);
if (! exists $depends{$page}) {
$depends{$page}=$pagespec;
}
else {
$depends{$page}=pagespec_merge($depends{$page}, $pagespec);
}
return 1;
} # }}}
sub file_pruned ($$) { #{{{
require File::Spec;
my $file=File::Spec->canonpath(shift);
my $base=File::Spec->canonpath(shift);
$file =~ s#^\Q$base\E/+##;
my $regexp='('.join('|', @{$config{wiki_file_prune_regexps}}).')';
return $file =~ m/$regexp/ && $file ne $base;
} #}}}
sub gettext { #{{{
# Only use gettext in the rare cases it's needed.
if ((exists $ENV{LANG} && length $ENV{LANG}) ||
(exists $ENV{LC_ALL} && length $ENV{LC_ALL}) ||
(exists $ENV{LC_MESSAGES} && length $ENV{LC_MESSAGES})) {
if (! $gettext_obj) {
$gettext_obj=eval q{
use Locale::gettext q{textdomain};
Locale::gettext->domain('ikiwiki')
};
if ($@) {
print STDERR "$@";
$gettext_obj=undef;
return shift;
}
}
return $gettext_obj->get(shift);
}
else {
return shift;
}
} #}}}
sub yesno ($) { #{{{
my $val=shift;
return (defined $val && lc($val) eq gettext("yes"));
} #}}}
sub pagespec_merge ($$) { #{{{
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 ($) { #{{{
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).", \@_)";
}
else {
$code.=' 0';
}
}
else {
$code.=" IkiWiki::PageSpec::match_glob(\$page, ".safequote($word).", \@_)";
}
}
if (! length $code) {
$code=0;
}
no warnings;
return eval 'sub { my $page=shift; '.$code.' }';
} #}}}
sub pagespec_match ($$;@) { #{{{
my $page=shift;
my $spec=shift;
my @params=@_;
# Backwards compatability with old calling convention.
if (@params == 1) {
unshift @params, 'location';
}
my $sub=pagespec_translate($spec);
return IkiWiki::FailReason->new("syntax error in pagespec \"$spec\"") if $@;
return $sub->($page, @params);
} #}}}
sub pagespec_valid ($) { #{{{
my $spec=shift;
my $sub=pagespec_translate($spec);
return ! $@;
} #}}}
sub glob2re ($) { #{{{
my $re=quotemeta(shift);
$re=~s/\\\*/.*/g;
$re=~s/\\\?/./g;
return $re;
} #}}}
package IkiWiki::FailReason;
use overload ( #{{{
'""' => sub { ${$_[0]} },
'0+' => sub { 0 },
'!' => sub { bless $_[0], 'IkiWiki::SuccessReason'},
fallback => 1,
); #}}}
sub new { #{{{
my $class = shift;
my $value = shift;
return bless \$value, $class;
} #}}}
package IkiWiki::SuccessReason;
use overload ( #{{{
'""' => sub { ${$_[0]} },
'0+' => sub { 1 },
'!' => sub { bless $_[0], 'IkiWiki::FailReason'},
fallback => 1,
); #}}}
sub new { #{{{
my $class = shift;
my $value = shift;
return bless \$value, $class;
}; #}}}
package IkiWiki::PageSpec;
sub match_glob ($$;@) { #{{{
my $page=shift;
my $glob=shift;
my %params=@_;
my $from=exists $params{location} ? $params{location} : '';
# relative matching
if ($glob =~ m!^\./!) {
$from=~s#/?[^/]+$##;
$glob=~s#^\./##;
$glob="$from/$glob" if length $from;
}
my $regexp=IkiWiki::glob2re($glob);
if ($page=~/^$regexp$/i) {
if (! IkiWiki::isinternal($page) || $params{internal}) {
return IkiWiki::SuccessReason->new("$glob matches $page");
}
else {
return IkiWiki::FailReason->new("$glob matches $page, but the page is an internal page");
}
}
else {
return IkiWiki::FailReason->new("$glob does not match $page");
}
} #}}}
sub match_internal ($$;@) { #{{{
return match_glob($_[0], $_[1], @_, internal => 1)
} #}}}
sub match_link ($$;@) { #{{{
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 $p 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');
}
} #}}}
1