ikiwiki/IkiWiki.pm

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#!/usr/bin/perl
package IkiWiki;
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use warnings;
use strict;
use Encode;
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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
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%pagestate %wikistate %renderedfiles %oldrenderedfiles
%pagesources %delpagesources %destsources %depends %depends_simple
@mass_depends %hooks %forcerebuild %loaded_plugins %typedlinks
%oldtypedlinks %autofiles};
use Exporter q{import};
our @EXPORT = qw(hook debug error htmlpage template template_depends
deptype add_depends pagespec_match pagespec_match_list bestlink
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htmllink readfile writefile pagetype srcfile pagename
displaytime will_render gettext ngettext urlto targetpage
add_underlay pagetitle titlepage linkpage newpagefile
inject add_link add_autofile
%config %links %pagestate %wikistate %renderedfiles
%pagesources %destsources %typedlinks);
our $VERSION = 3.00; # plugin interface version, next is ikiwiki version
our $version='unknown'; # VERSION_AUTOREPLACE done by Makefile, DNE
our $installdir='/usr'; # INSTALLDIR_AUTOREPLACE done by Makefile, DNE
# Page dependency types.
our $DEPEND_CONTENT=1;
our $DEPEND_PRESENCE=2;
our $DEPEND_LINKS=4;
# Optimisation.
use Memoize;
memoize("abs2rel");
memoize("sortspec_translate");
memoize("pagespec_translate");
memoize("template_file");
sub getsetup () {
wikiname => {
type => "string",
default => "wiki",
description => "name of the wiki",
safe => 1,
rebuild => 1,
},
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adminemail => {
type => "string",
default => undef,
example => 'me@example.com',
description => "contact email for wiki",
safe => 1,
rebuild => 0,
},
adminuser => {
type => "string",
default => [],
description => "users who are wiki admins",
safe => 1,
rebuild => 0,
},
banned_users => {
type => "string",
default => [],
description => "users who are banned from the wiki",
safe => 1,
rebuild => 0,
},
srcdir => {
type => "string",
default => undef,
example => "$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,
},
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",
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description => "filename of cgi wrapper 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,
},
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default_plugins => {
type => "internal",
default => [qw{mdwn link inline meta htmlscrubber passwordauth
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openid signinedit lockedit conditional
recentchanges parentlinks editpage}],
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description => "plugins to enable by default",
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safe => 0,
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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 => "$installdir/share/ikiwiki/templates",
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description => "additional directory to search for template files",
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advanced => 1,
safe => 0, # path
rebuild => 1,
},
underlaydir => {
type => "string",
default => "$installdir/share/ikiwiki/basewiki",
description => "base wiki source location",
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advanced => 1,
safe => 0, # path
rebuild => 0,
},
underlaydirbase => {
type => "internal",
default => "$installdir/share/ikiwiki",
description => "parent directory containing additional underlays",
safe => 0,
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",
example => 1,
description => "display verbose messages?",
safe => 1,
rebuild => 0,
},
syslog => {
type => "boolean",
example => 1,
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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",
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default => 1,
description => "use '!'-prefixed preprocessor directives?",
safe => 0, # changing requires manual transition
rebuild => 1,
},
indexpages => {
type => "boolean",
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default => 0,
description => "use page/index.mdwn source files",
safe => 1,
rebuild => 1,
},
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discussion => {
type => "boolean",
default => 1,
description => "enable Discussion pages?",
safe => 1,
rebuild => 1,
},
discussionpage => {
type => "string",
default => gettext("Discussion"),
description => "name of Discussion pages",
safe => 1,
rebuild => 1,
},
html5 => {
type => "boolean",
default => 0,
description => "generate HTML5? (experimental)",
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advanced => 1,
safe => 1,
rebuild => 1,
},
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sslcookie => {
type => "boolean",
default => 0,
description => "only send cookies over SSL connections?",
advanced => 1,
safe => 1,
rebuild => 0,
},
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",
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advanced => 1,
safe => 1,
rebuild => 1,
},
locale => {
type => "string",
default => undef,
example => "en_US.UTF-8",
description => "UTF-8 locale to use",
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advanced => 1,
safe => 0,
rebuild => 1,
},
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,
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description => "attempt to hardlink source files? (optimisation for large files)",
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advanced => 1,
safe => 0, # paranoia
rebuild => 0,
},
umask => {
type => "integer",
example => "022",
description => "force ikiwiki to use a particular umask",
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advanced => 1,
safe => 0, # paranoia
rebuild => 0,
},
wrappergroup => {
type => "string",
example => "ikiwiki",
description => "group for wrappers to run in",
advanced => 1,
safe => 0, # paranoia
rebuild => 0,
},
libdir => {
type => "string",
default => "",
example => "$ENV{HOME}/.ikiwiki/",
description => "extra library and plugin directory",
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advanced => 1,
safe => 0, # directory
rebuild => 0,
},
ENV => {
type => "string",
default => {},
description => "environment variables",
safe => 0, # paranoia
rebuild => 0,
},
include => {
type => "string",
default => undef,
example => '^\.htaccess$',
description => "regexp of normally excluded files to include",
advanced => 1,
safe => 0, # regexp
rebuild => 1,
},
exclude => {
type => "string",
default => undef,
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example => '^(*\.private|Makefile)$',
description => "regexp of files that should be skipped",
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advanced => 1,
safe => 0, # regexp
rebuild => 1,
},
wiki_file_prune_regexps => {
type => "internal",
default => [qr/(^|\/)\.\.(\/|$)/, qr/^\//, qr/^\./, qr/\/\./,
qr/\.x?html?$/, qr/\.ikiwiki-new$/,
qr/(^|\/).svn\//, qr/.arch-ids\//, qr/{arch}\//,
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qr/(^|\/)_MTN\//, qr/(^|\/)_darcs\//,
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qr/(^|\/)CVS\//, qr/\.dpkg-tmp$/],
description => "regexps of source files to ignore",
safe => 0,
rebuild => 1,
},
wiki_file_chars => {
type => "string",
description => "specifies the characters that are allowed in source filenames",
default => "-[:alnum:]+/.:_",
safe => 0,
rebuild => 1,
},
wiki_file_regexp => {
type => "internal",
description => "regexp of legal source files",
safe => 0,
rebuild => 1,
},
web_commit_regexp => {
type => "internal",
default => qr/^web commit (by (.*?(?=: |$))|from ([0-9a-fA-F:.]+[0-9a-fA-F])):?(.*)/,
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,
},
setup => {
type => "internal",
default => undef,
description => "running in setup mode",
safe => 0,
rebuild => 0,
},
clean => {
type => "internal",
default => 0,
description => "running in clean mode",
safe => 0,
rebuild => 0,
},
refresh => {
type => "internal",
default => 0,
description => "running in refresh mode",
safe => 0,
rebuild => 0,
},
test_receive => {
type => "internal",
default => 0,
description => "running in receive test mode",
safe => 0,
rebuild => 0,
},
wrapper_background_command => {
type => "internal",
default => '',
description => "background shell command to run",
safe => 0,
rebuild => 0,
},
gettime => {
type => "internal",
description => "running in gettime mode",
safe => 0,
rebuild => 0,
},
w3mmode => {
type => "internal",
default => 0,
description => "running in w3mmode",
safe => 0,
rebuild => 0,
},
wikistatedir => {
type => "internal",
default => undef,
description => "path to the .ikiwiki directory holding ikiwiki state",
safe => 0,
rebuild => 0,
},
setupfile => {
type => "internal",
default => undef,
description => "path to setup file",
safe => 0,
rebuild => 0,
},
setuptype => {
type => "internal",
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default => "Standard",
description => "perl class to use to dump setup file",
safe => 0,
rebuild => 0,
},
allow_symlinks_before_srcdir => {
type => "boolean",
default => 0,
description => "allow symlinks in the path leading to the srcdir (potentially insecure)",
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}) {
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if (POSIX::setlocale(&POSIX::LC_ALL, $config{locale})) {
$ENV{LANG}=$config{locale};
define_gettext();
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}
}
if (! defined $config{wiki_file_regexp}) {
$config{wiki_file_regexp}=qr/(^[$config{wiki_file_chars}]+$)/;
}
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} && defined $config{wikistatedir};
if (defined $config{umask}) {
umask(possibly_foolish_untaint($config{umask}));
}
run_hooks(checkconfig => sub { shift->() });
return 1;
}
sub listplugins () {
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my %ret;
foreach my $dir (@INC, $config{libdir}) {
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next unless defined $dir && length $dir;
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foreach my $file (glob("$dir/IkiWiki/Plugin/*.pm")) {
my ($plugin)=$file=~/.*\/(.*)\.pm$/;
$ret{$plugin}=1;
}
}
foreach my $dir ($config{libdir}, "$installdir/lib/ikiwiki") {
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next unless defined $dir && length $dir;
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foreach my $file (glob("$dir/plugins/*")) {
$ret{basename($file)}=1 if -x $file;
}
}
return keys %ret;
}
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sub loadplugins () {
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if (defined $config{libdir} && length $config{libdir}) {
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unshift @INC, possibly_foolish_untaint($config{libdir});
}
foreach my $plugin (@{$config{default_plugins}}, @{$config{add_plugins}}) {
loadplugin($plugin);
}
if ($config{rcs}) {
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if (exists $hooks{rcs}) {
error(gettext("cannot use multiple rcs plugins"));
}
loadplugin($config{rcs});
}
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if (! exists $hooks{rcs}) {
loadplugin("norcs");
}
run_hooks(getopt => sub { shift->() });
if (grep /^-/, @ARGV) {
print STDERR "Unknown option (or missing parameter): $_\n"
foreach grep /^-/, @ARGV;
usage();
}
return 1;
}
sub loadplugin ($;$) {
my $plugin=shift;
my $force=shift;
return if ! $force && grep { $_ eq $plugin} @{$config{disable_plugins}};
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foreach my $dir (defined $config{libdir} ? possibly_foolish_untaint($config{libdir}) : undef,
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"$installdir/lib/ikiwiki") {
if (defined $dir && -x "$dir/plugins/$plugin") {
eval { require IkiWiki::Plugin::external };
if ($@) {
my $reason=$@;
error(sprintf(gettext("failed to load external plugin needed for %s plugin: %s"), $plugin, $reason));
}
import IkiWiki::Plugin::external "$dir/plugins/$plugin";
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$loaded_plugins{$plugin}=1;
return 1;
}
}
my $mod="IkiWiki::Plugin::".possibly_foolish_untaint($plugin);
eval qq{use $mod};
if ($@) {
error("Failed to load plugin $mod: $@");
}
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$loaded_plugins{$plugin}=1;
return 1;
}
sub error ($;$) {
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 ($$) {
my $type=shift;
if ($config{syslog}) {
require Sys::Syslog;
if (! $log_open) {
Sys::Syslog::setlogsock('unix');
Sys::Syslog::openlog('ikiwiki', '', 'user');
$log_open=1;
}
return eval {
Sys::Syslog::syslog($type, "[$config{wikiname}] %s", join(" ", @_));
};
}
elsif (! $config{cgi}) {
return print "@_\n";
}
else {
return print STDERR "@_\n";
}
}
sub possibly_foolish_untaint ($) {
my $tainted=shift;
my ($untainted)=$tainted=~/(.*)/s;
return $untainted;
}
sub basename ($) {
my $file=shift;
$file=~s!.*/+!!;
return $file;
}
sub dirname ($) {
my $file=shift;
$file=~s!/*[^/]+$!!;
return $file;
}
sub isinternal ($) {
my $page=shift;
return exists $pagesources{$page} &&
$pagesources{$page} =~ /\._([^.]+)$/;
}
sub pagetype ($) {
my $file=shift;
if ($file =~ /\.([^.]+)$/) {
return $1 if exists $hooks{htmlize}{$1};
}
my $base=basename($file);
if (exists $hooks{htmlize}{$base} &&
$hooks{htmlize}{$base}{noextension}) {
return $base;
}
return;
}
my %pagename_cache;
sub pagename ($) {
my $file=shift;
if (exists $pagename_cache{$file}) {
return $pagename_cache{$file};
}
my $type=pagetype($file);
my $page=$file;
$page=~s/\Q.$type\E*$//
if defined $type && !$hooks{htmlize}{$type}{keepextension}
&& !$hooks{htmlize}{$type}{noextension};
if ($config{indexpages} && $page=~/(.*)\/index$/) {
$page=$1;
}
$pagename_cache{$file} = $page;
return $page;
}
sub newpagefile ($$) {
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my $page=shift;
my $type=shift;
if (! $config{indexpages} || $page eq 'index') {
return $page.".".$type;
}
else {
return $page."/index.".$type;
}
}
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sub targetpage ($$;$) {
my $page=shift;
my $ext=shift;
my $filename=shift;
if (defined $filename) {
return $page."/".$filename.".".$ext;
}
elsif (! $config{usedirs} || $page eq 'index') {
return $page.".".$ext;
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}
else {
return $page."/index.".$ext;
}
}
sub htmlpage ($) {
my $page=shift;
return targetpage($page, $config{htmlext});
}
sub srcfile_stat {
my $file=shift;
my $nothrow=shift;
return "$config{srcdir}/$file", stat(_) if -e "$config{srcdir}/$file";
foreach my $dir (@{$config{underlaydirs}}, $config{underlaydir}) {
return "$dir/$file", stat(_) if -e "$dir/$file";
}
error("internal error: $file cannot be found in $config{srcdir} or underlay") unless $nothrow;
return;
}
sub srcfile ($;$) {
return (srcfile_stat(@_))[0];
}
sub add_underlay ($) {
my $dir=shift;
if ($dir !~ /^\//) {
$dir="$config{underlaydirbase}/$dir";
}
if (! grep { $_ eq $dir } @{$config{underlaydirs}}) {
unshift @{$config{underlaydirs}}, $dir;
}
return 1;
}
sub readfile ($;$$) {
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>;
# check for invalid utf-8, and toss it back to avoid crashes
if (! utf8::valid($ret)) {
$ret=encode_utf8($ret);
}
close $in || error("failed to read $file: $!");
return $ret;
}
sub prep_writefile ($$) {
my $file=shift;
my $destdir=shift;
my $test=$file;
while (length $test) {
if (-l "$destdir/$test") {
error("cannot write to a symlink ($test)");
}
if (-f _ && $test ne $file) {
# Remove conflicting file.
foreach my $p (keys %renderedfiles, keys %oldrenderedfiles) {
foreach my $f (@{$renderedfiles{$p}}, @{$oldrenderedfiles{$p}}) {
if ($f eq $test) {
unlink("$destdir/$test");
last;
}
}
}
}
$test=dirname($test);
}
my $dir=dirname("$destdir/$file");
if (! -d $dir) {
my $d="";
foreach my $s (split(m!/+!, $dir)) {
$d.="$s/";
if (! -d $d) {
mkdir($d) || error("failed to create directory $d: $!");
}
}
}
return 1;
}
sub writefile ($$$;$$) {
my $file=shift; # can include subdirs
my $destdir=shift; # directory to put file in
my $content=shift;
my $binary=shift;
my $writer=shift;
prep_writefile($file, $destdir);
my $newfile="$destdir/$file.ikiwiki-new";
if (-l $newfile) {
error("cannot write to a symlink ($newfile)");
}
my $cleanup = sub { unlink($newfile) };
open (my $out, '>', $newfile) || error("failed to write $newfile: $!", $cleanup);
binmode($out) if ($binary);
if ($writer) {
$writer->(\*$out, $cleanup);
}
else {
print $out $content or error("failed writing to $newfile: $!", $cleanup);
}
close $out || error("failed saving $newfile: $!", $cleanup);
rename($newfile, "$destdir/$file") ||
error("failed renaming $newfile to $destdir/$file: $!", $cleanup);
return 1;
}
my %cleared;
sub will_render ($$;$) {
my $page=shift;
my $dest=shift;
my $clear=shift;
# Important security check for independently created files.
if (-e "$config{destdir}/$dest" && ! $config{rebuild} &&
! grep { $_ eq $dest } (@{$renderedfiles{$page}}, @{$oldrenderedfiles{$page}}, @{$wikistate{editpage}{previews}})) {
my $from_other_page=0;
# Expensive, but rarely runs.
foreach my $p (keys %renderedfiles, keys %oldrenderedfiles) {
if (grep {
$_ eq $dest ||
dirname($_) eq $dest
} @{$renderedfiles{$p}}, @{$oldrenderedfiles{$p}}) {
$from_other_page=1;
last;
}
}
error("$config{destdir}/$dest independently created, not overwriting with version from $page")
unless $from_other_page;
}
# If $dest exists as a directory, remove conflicting files in it
# rendered from other pages.
if (-d _) {
foreach my $p (keys %renderedfiles, keys %oldrenderedfiles) {
foreach my $f (@{$renderedfiles{$p}}, @{$oldrenderedfiles{$p}}) {
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if (dirname($f) eq $dest) {
unlink("$config{destdir}/$f");
rmdir(dirname("$config{destdir}/$f"));
}
}
}
}
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 ($$) {
my $page=shift;
my $link=shift;
my $cwd=$page;
if ($link=~s/^\/+//) {
# absolute links
$cwd="";
}
$link=~s/\/$//;
do {
my $l=$cwd;
$l.="/" if length $l;
$l.=$link;
if (exists $pagesources{$l}) {
return $l;
}
elsif (exists $pagecase{lc $l}) {
return $pagecase{lc $l};
}
} while $cwd=~s{/?[^/]+$}{};
if (length $config{userdir}) {
my $l = "$config{userdir}/".lc($link);
if (exists $pagesources{$l}) {
return $l;
}
elsif (exists $pagecase{lc $l}) {
return $pagecase{lc $l};
}
}
#print STDERR "warning: page $page, broken link: $link\n";
return "";
}
sub isinlinableimage ($) {
my $file=shift;
return $file =~ /\.(png|gif|jpg|jpeg)$/i;
}
sub pagetitle ($;$) {
my $page=shift;
my $unescaped=shift;
if ($unescaped) {
$page=~s/(__(\d+)__|_)/$1 eq '_' ? ' ' : chr($2)/eg;
}
else {
$page=~s/(__(\d+)__|_)/$1 eq '_' ? ' ' : "&#$2;"/eg;
}
return $page;
}
sub titlepage ($) {
my $title=shift;
# support use w/o %config set
my $chars = defined $config{wiki_file_chars} ? $config{wiki_file_chars} : "-[:alnum:]+/.:_";
$title=~s/([^$chars]|_)/$1 eq ' ' ? '_' : "__".ord($1)."__"/eg;
return $title;
}
sub linkpage ($) {
my $link=shift;
my $chars = defined $config{wiki_file_chars} ? $config{wiki_file_chars} : "-[:alnum:]+/.:_";
$link=~s/([^$chars])/$1 eq ' ' ? '_' : "__".ord($1)."__"/eg;
return $link;
}
sub cgiurl (@) {
my %params=@_;
my $cgiurl=$config{cgiurl};
if (exists $params{cgiurl}) {
$cgiurl=$params{cgiurl};
delete $params{cgiurl};
}
return $cgiurl."?".
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join("&amp;", map $_."=".uri_escape_utf8($params{$_}), keys %params);
}
sub baseurl (;$) {
my $page=shift;
return "$config{url}/" if ! defined $page;
$page=htmlpage($page);
$page=~s/[^\/]+$//;
$page=~s/[^\/]+\//..\//g;
return $page;
}
sub abs2rel ($$) {
# 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 $ret;
}
sub displaytime ($;$$) {
# Plugins can override this function to mark up the time to
# display.
my $time=formattime($_[0], $_[1]);
if ($config{html5}) {
return '<time datetime="'.date_3339($_[0]).'"'.
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($_[2] ? ' pubdate="pubdate"' : '').
'>'.$time.'</time>';
}
else {
return '<span class="date">'.$time.'</span>';
}
}
sub formattime ($;$) {
# Plugins can override this function to format the time.
my $time=shift;
my $format=shift;
if (! defined $format) {
$format=$config{timeformat};
}
# strftime doesn't know about encodings, so make sure
# its output is properly treated as utf8
return decode_utf8(POSIX::strftime($format, localtime($time)));
}
sub date_3339 ($) {
my $time=shift;
my $lc_time=POSIX::setlocale(&POSIX::LC_TIME);
POSIX::setlocale(&POSIX::LC_TIME, "C");
my $ret=POSIX::strftime("%Y-%m-%dT%H:%M:%SZ", gmtime($time));
POSIX::setlocale(&POSIX::LC_TIME, $lc_time);
return $ret;
}
sub beautify_urlpath ($) {
my $url=shift;
# Ensure url is not an empty link, and if necessary,
# add ./ to avoid colon confusion.
if ($url !~ /^\// && $url !~ /^\.\.?\//) {
$url="./$url";
}
if ($config{usedirs}) {
$url =~ s!/index.$config{htmlext}$!/!;
}
return $url;
}
sub urlto ($$;$) {
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 isselflink ($$) {
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# Plugins can override this function to support special types
# of selflinks.
my $page=shift;
my $link=shift;
return $page eq $link;
}
sub htmllink ($$$;@) {
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 $bestlink && isselflink($page, $bestlink) &&
! defined $opts{anchor};
if (! $destsources{$bestlink}) {
$bestlink=htmlpage($bestlink);
if (! $destsources{$bestlink}) {
my $cgilink = "";
if (length $config{cgiurl}) {
$cgilink = "<a href=\"".
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cgiurl(
do => "create",
page => lc($link),
from => $lpage
)."\" rel=\"nofollow\">?</a>";
}
return "<span class=\"createlink\">$cgilink$linktext</span>"
}
}
$bestlink=abs2rel($bestlink, dirname(htmlpage($page)));
$bestlink=beautify_urlpath($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;
foreach my $attr (qw{rel class title}) {
if (defined $opts{$attr}) {
push @attrs, " $attr=\"$opts{$attr}\"";
}
}
return "<a href=\"$bestlink\"@attrs>$linktext</a>";
}
sub userpage ($) {
my $user=shift;
return length $config{userdir} ? "$config{userdir}/$user" : $user;
}
sub openiduser ($) {
my $user=shift;
if ($user =~ m!^https?://! &&
eval q{use Net::OpenID::VerifiedIdentity; 1} && !$@) {
my $display;
if (Net::OpenID::VerifiedIdentity->can("DisplayOfURL")) {
$display = Net::OpenID::VerifiedIdentity::DisplayOfURL($user);
}
else {
# backcompat with old version
my $oid=Net::OpenID::VerifiedIdentity->new(identity => $user);
$display=$oid->display;
}
# Convert "user.somehost.com" to "user [somehost.com]"
# (also "user.somehost.co.uk")
if ($display !~ /\[/) {
$display=~s/^([-a-zA-Z0-9]+?)\.([-.a-zA-Z0-9]+\.[a-z]+)$/$1 [$2]/;
}
# Convert "http://somehost.com/user" to "user [somehost.com]".
# (also "https://somehost.com/user/")
if ($display !~ /\[/) {
$display=~s/^https?:\/\/(.+)\/([^\/#?]+)\/?(?:[#?].*)?$/$2 [$1]/;
}
$display=~s!^https?://!!; # make sure this is removed
eval q{use CGI 'escapeHTML'};
error($@) if $@;
return escapeHTML($display);
}
return;
}
sub htmlize ($$$$) {
my $page=shift;
my $destpage=shift;
my $type=shift;
my $content=shift;
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my $oneline = $content !~ /\n/;
if (exists $hooks{htmlize}{$type}) {
$content=$hooks{htmlize}{$type}{call}->(
page => $page,
content => $content,
);
}
else {
error("htmlization of $type not supported");
}
run_hooks(sanitize => sub {
$content=shift->(
page => $page,
destpage => $destpage,
content => $content,
);
});
if ($oneline) {
# hack to get rid of enclosing junk added by markdown
# and other htmlizers/sanitizers
$content=~s/^<p>//i;
$content=~s/<\/p>\n*$//i;
}
return $content;
}
sub linkify ($$$) {
my $page=shift;
my $destpage=shift;
my $content=shift;
run_hooks(linkify => sub {
$content=shift->(
page => $page,
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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 $params=shift;
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$params="" if ! defined $params;
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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 => $preprocess_preview,
);
};
if ($@) {
my $error=$@;
chomp $error;
$ret="[[!$command <span class=\"error\">".
gettext("Error").": $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;
2008-07-17 06:22:25 +02:00
}
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;
}
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$content =~ s{$regex}{$handle->($1, $2, $3, $4)}eg;
return $content;
}
sub filter ($$$) {
my $page=shift;
my $destpage=shift;
my $content=shift;
run_hooks(filter => sub {
$content=shift->(page => $page, destpage => $destpage,
content => $content);
});
return $content;
}
sub check_canedit ($$$;$) {
my $page=shift;
my $q=shift;
my $session=shift;
my $nonfatal=shift;
my $canedit;
run_hooks(canedit => sub {
return if defined $canedit;
my $ret=shift->($page, $q, $session);
if (defined $ret) {
if ($ret eq "") {
$canedit=1;
}
elsif (ref $ret eq 'CODE') {
$ret->() unless $nonfatal;
$canedit=0;
}
elsif (defined $ret) {
error($ret) unless $nonfatal;
$canedit=0;
}
}
});
return defined $canedit ? $canedit : 1;
}
sub check_content (@) {
my %params=@_;
return 1 if ! exists $hooks{checkcontent}; # optimisation
if (exists $pagesources{$params{page}}) {
my @diff;
my %old=map { $_ => 1 }
split("\n", readfile(srcfile($pagesources{$params{page}})));
foreach my $line (split("\n", $params{content})) {
push @diff, $line if ! exists $old{$line};
}
$params{diff}=join("\n", @diff);
}
my $ok;
run_hooks(checkcontent => sub {
return if defined $ok;
my $ret=shift->(%params);
if (defined $ret) {
if ($ret eq "") {
$ok=1;
}
elsif (ref $ret eq 'CODE') {
$ret->() unless $params{nonfatal};
$ok=0;
}
elsif (defined $ret) {
error($ret) unless $params{nonfatal};
$ok=0;
}
}
});
return defined $ok ? $ok : 1;
}
my $wikilock;
sub lockwiki () {
# 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)) { # LOCK_EX
error("failed to get lock");
}
return 1;
}
sub unlockwiki () {
POSIX::close($ENV{IKIWIKI_CGILOCK_FD}) if exists $ENV{IKIWIKI_CGILOCK_FD};
return close($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=
%depends_simple=%typedlinks=%oldtypedlinks=();
}
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my $in;
if (! open ($in, "<", "$config{wikistatedir}/indexdb")) {
if (-e "$config{wikistatedir}/index") {
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system("ikiwiki-transition", "indexdb", $config{srcdir});
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open ($in, "<", "$config{wikistatedir}/indexdb") || return;
}
else {
$config{gettime}=1; # first build
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return;
}
}
my $index=Storable::fd_retrieve($in);
if (! defined $index) {
return 0;
}
my $pages;
if (exists $index->{version} && ! ref $index->{version}) {
$pages=$index->{page};
%wikistate=%{$index->{state}};
# Handle plugins that got disabled by loading a new setup.
if (exists $config{setupfile}) {
require IkiWiki::Setup;
IkiWiki::Setup::disabled_plugins(
grep { ! $loaded_plugins{$_} } keys %wikistate);
}
}
else {
$pages=$index;
%wikistate=();
}
foreach my $src (keys %$pages) {
my $d=$pages->{$src};
my $page=pagename($src);
$pagectime{$page}=$d->{ctime};
$pagesources{$page}=$src;
if (! $config{rebuild}) {
$pagemtime{$page}=$d->{mtime};
$renderedfiles{$page}=$d->{dest};
if (exists $d->{links} && ref $d->{links}) {
$links{$page}=$d->{links};
$oldlinks{$page}=[@{$d->{links}}];
}
if (ref $d->{depends_simple} eq 'ARRAY') {
# old format
$depends_simple{$page}={
map { $_ => 1 } @{$d->{depends_simple}}
};
}
elsif (exists $d->{depends_simple}) {
2009-10-07 01:03:23 +02:00
$depends_simple{$page}=$d->{depends_simple};
}
if (exists $d->{dependslist}) {
# old format
$depends{$page}={
map { $_ => $DEPEND_CONTENT }
@{$d->{dependslist}}
};
}
elsif (exists $d->{depends} && ! ref $d->{depends}) {
# old format
$depends{$page}={$d->{depends} => $DEPEND_CONTENT };
}
elsif (exists $d->{depends}) {
$depends{$page}=$d->{depends};
}
if (exists $d->{state}) {
$pagestate{$page}=$d->{state};
}
if (exists $d->{typedlinks}) {
$typedlinks{$page}=$d->{typedlinks};
while (my ($type, $links) = each %{$typedlinks{$page}}) {
next unless %$links;
$oldtypedlinks{$page}{$type} = {%$links};
}
}
}
$oldrenderedfiles{$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 () {
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run_hooks(savestate => sub { shift->() });
my @plugins=keys %loaded_plugins;
if (! -d $config{wikistatedir}) {
mkdir($config{wikistatedir});
}
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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};
$index{page}{$src}={
ctime => $pagectime{$page},
mtime => $pagemtime{$page},
dest => $renderedfiles{$page},
links => $links{$page},
};
if (exists $depends{$page}) {
$index{page}{$src}{depends} = $depends{$page};
}
if (exists $depends_simple{$page}) {
$index{page}{$src}{depends_simple} = $depends_simple{$page};
}
if (exists $typedlinks{$page} && %{$typedlinks{$page}}) {
$index{page}{$src}{typedlinks} = $typedlinks{$page};
}
if (exists $pagestate{$page}) {
foreach my $id (@plugins) {
foreach my $key (keys %{$pagestate{$page}{$id}}) {
$index{page}{$src}{state}{$id}{$key}=$pagestate{$page}{$id}{$key};
}
}
}
}
$index{state}={};
foreach my $id (@plugins) {
$index{state}{$id}={}; # used to detect disabled plugins
foreach my $key (keys %{$wikistate{$id}}) {
$index{state}{$id}{$key}=$wikistate{$id}{$key};
}
}
$index{version}="3";
my $ret=Storable::nstore_fd(\%index, $out);
return if ! defined $ret || ! $ret;
close $out || error("failed saving to $newfile: $!", $cleanup);
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rename($newfile, "$config{wikistatedir}/indexdb") ||
error("failed renaming $newfile to $config{wikistatedir}/indexdb", $cleanup);
return 1;
}
sub template_file ($) {
my $name=shift;
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my $tpage=($name =~ s/^\///) ? $name : "templates/$name";
my $template;
if ($name !~ /\.tmpl$/ && exists $pagesources{$tpage}) {
$template=srcfile($pagesources{$tpage}, 1);
$name.=".tmpl";
}
else {
$template=srcfile($tpage, 1);
}
if (defined $template) {
return $template, $tpage, 1 if wantarray;
return $template;
}
else {
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$name=~s:/::; # avoid path traversal
foreach my $dir ($config{templatedir},
"$installdir/share/ikiwiki/templates") {
if (-e "$dir/$name") {
$template="$dir/$name";
last;
}
}
if (defined $template) {
return $template, $tpage if wantarray;
return $template;
}
}
return;
}
sub template_depends ($$;@) {
my $name=shift;
my $page=shift;
my ($filename, $tpage, $untrusted)=template_file($name);
if (defined $page && defined $tpage) {
add_depends($page, $tpage);
}
return unless defined $filename;
my @opts=(
filter => sub {
my $text_ref = shift;
${$text_ref} = decode_utf8(${$text_ref});
},
loop_context_vars => 1,
die_on_bad_params => 0,
filename => $filename,
@_,
($untrusted ? (no_includes => 1) : ()),
);
return @opts if wantarray;
require HTML::Template;
return HTML::Template->new(@opts);
}
sub template ($;@) {
template_depends(shift, undef, @_);
}
sub misctemplate ($$;@) {
my $title=shift;
my $content=shift;
my %params=@_;
my $template=template("page.tmpl");
my $page="";
if (exists $params{page}) {
$page=delete $params{page};
}
run_hooks(pagetemplate => sub {
shift->(
page => $page,
destpage => $page,
template => $template,
);
});
templateactions($template, "");
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$template->param(
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dynamic => 1,
title => $title,
wikiname => $config{wikiname},
content => $content,
baseurl => baseurl(),
html5 => $config{html5},
%params,
);
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return $template->output;
}
sub templateactions ($$) {
my $template=shift;
my $page=shift;
my $have_actions=0;
my @actions;
run_hooks(pageactions => sub {
push @actions, map { { action => $_ } }
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grep { defined } shift->(page => $page);
});
$template->param(actions => \@actions);
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if ($config{cgiurl} && exists $hooks{auth}) {
$template->param(prefsurl => cgiurl(do => "prefs"));
$have_actions=1;
}
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if ($have_actions || @actions) {
$template->param(have_actions => 1);
}
}
sub hook (@) {
my %param=@_;
if (! exists $param{type} || ! ref $param{call} || ! exists $param{id}) {
error 'hook requires type, call, and id parameters';
}
return if $param{no_override} && exists $hooks{$param{type}}{$param{id}};
$hooks{$param{type}}{$param{id}}=\%param;
return 1;
}
sub run_hooks ($$) {
# 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}) {
inline: Run format hook first inline has a format hook that is an optimisation hack. Until this hook runs, the inlined content is not present on the page. This can prevent other format hooks, that process that content, from acting on inlined content. In bug ##509710, we discovered this happened commonly for the embed plugin, but it could in theory happen for many other plugins (color, cutpaste, etc) that use format to fill in special html after sanitization. The ordering was essentially random (hash key order). That's kinda a good thing, because hooks should be independent of other hooks and able to run in any order. But for things like inline, that just doesn't work. To fix the immediate problem, let's make hooks able to be registered as running "first". There was already the ability to make them run "last". Now, this simple first/middle/last ordering is obviously not going to work if a lot of things need to run first, or last, since then we'll be back to being unable to specify ordering inside those sets. But before worrying about that too much, and considering dependency ordering, etc, observe how few plugins use last ordering: Exactly one needs it. And, so far, exactly one needs first ordering. So for now, KISS. Another implementation note: I could have sorted the plugins with first/last/middle as the primary key, and plugin name secondary, to get a guaranteed stable order. Instead, I chose to preserve hash order. Two opposing things pulled me toward that decision: 1. Since has order is randomish, it will ensure that no accidental ordering assumptions are made. 2. Assume for a minute that ordering matters a lot more than expected. Drastically changing the order a particular configuration uses could result in a lot of subtle bugs cropping up. (I hope this assumption is false, partly due to #1, but can't rule it out.)
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my (@first, @middle, @last);
foreach my $id (keys %{$hooks{$type}}) {
inline: Run format hook first inline has a format hook that is an optimisation hack. Until this hook runs, the inlined content is not present on the page. This can prevent other format hooks, that process that content, from acting on inlined content. In bug ##509710, we discovered this happened commonly for the embed plugin, but it could in theory happen for many other plugins (color, cutpaste, etc) that use format to fill in special html after sanitization. The ordering was essentially random (hash key order). That's kinda a good thing, because hooks should be independent of other hooks and able to run in any order. But for things like inline, that just doesn't work. To fix the immediate problem, let's make hooks able to be registered as running "first". There was already the ability to make them run "last". Now, this simple first/middle/last ordering is obviously not going to work if a lot of things need to run first, or last, since then we'll be back to being unable to specify ordering inside those sets. But before worrying about that too much, and considering dependency ordering, etc, observe how few plugins use last ordering: Exactly one needs it. And, so far, exactly one needs first ordering. So for now, KISS. Another implementation note: I could have sorted the plugins with first/last/middle as the primary key, and plugin name secondary, to get a guaranteed stable order. Instead, I chose to preserve hash order. Two opposing things pulled me toward that decision: 1. Since has order is randomish, it will ensure that no accidental ordering assumptions are made. 2. Assume for a minute that ordering matters a lot more than expected. Drastically changing the order a particular configuration uses could result in a lot of subtle bugs cropping up. (I hope this assumption is false, partly due to #1, but can't rule it out.)
2008-12-26 22:08:33 +01:00
if ($hooks{$type}{$id}{first}) {
push @first, $id;
}
elsif ($hooks{$type}{$id}{last}) {
push @last, $id;
}
else {
push @middle, $id;
}
}
inline: Run format hook first inline has a format hook that is an optimisation hack. Until this hook runs, the inlined content is not present on the page. This can prevent other format hooks, that process that content, from acting on inlined content. In bug ##509710, we discovered this happened commonly for the embed plugin, but it could in theory happen for many other plugins (color, cutpaste, etc) that use format to fill in special html after sanitization. The ordering was essentially random (hash key order). That's kinda a good thing, because hooks should be independent of other hooks and able to run in any order. But for things like inline, that just doesn't work. To fix the immediate problem, let's make hooks able to be registered as running "first". There was already the ability to make them run "last". Now, this simple first/middle/last ordering is obviously not going to work if a lot of things need to run first, or last, since then we'll be back to being unable to specify ordering inside those sets. But before worrying about that too much, and considering dependency ordering, etc, observe how few plugins use last ordering: Exactly one needs it. And, so far, exactly one needs first ordering. So for now, KISS. Another implementation note: I could have sorted the plugins with first/last/middle as the primary key, and plugin name secondary, to get a guaranteed stable order. Instead, I chose to preserve hash order. Two opposing things pulled me toward that decision: 1. Since has order is randomish, it will ensure that no accidental ordering assumptions are made. 2. Assume for a minute that ordering matters a lot more than expected. Drastically changing the order a particular configuration uses could result in a lot of subtle bugs cropping up. (I hope this assumption is false, partly due to #1, but can't rule it out.)
2008-12-26 22:08:33 +01:00
foreach my $id (@first, @middle, @last) {
$sub->($hooks{$type}{$id}{call});
}
}
return 1;
}
sub rcs_update () {
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$hooks{rcs}{rcs_update}{call}->(@_);
}
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sub rcs_prepedit ($) {
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$hooks{rcs}{rcs_prepedit}{call}->(@_);
}
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sub rcs_commit (@) {
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$hooks{rcs}{rcs_commit}{call}->(@_);
}
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sub rcs_commit_staged (@) {
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$hooks{rcs}{rcs_commit_staged}{call}->(@_);
}
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sub rcs_add ($) {
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$hooks{rcs}{rcs_add}{call}->(@_);
}
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sub rcs_remove ($) {
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$hooks{rcs}{rcs_remove}{call}->(@_);
}
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sub rcs_rename ($$) {
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$hooks{rcs}{rcs_rename}{call}->(@_);
}
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sub rcs_recentchanges ($) {
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$hooks{rcs}{rcs_recentchanges}{call}->(@_);
}
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sub rcs_diff ($) {
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$hooks{rcs}{rcs_diff}{call}->(@_);
}
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sub rcs_getctime ($) {
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$hooks{rcs}{rcs_getctime}{call}->(@_);
}
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sub rcs_getmtime ($) {
$hooks{rcs}{rcs_getmtime}{call}->(@_);
}
sub rcs_receive () {
$hooks{rcs}{rcs_receive}{call}->();
}
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sub add_depends ($$;$) {
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my $page=shift;
my $pagespec=shift;
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my $deptype=shift || $DEPEND_CONTENT;
# Is the pagespec a simple page name?
if ($pagespec =~ /$config{wiki_file_regexp}/ &&
$pagespec !~ /[\s*?()!]/) {
$depends_simple{$page}{lc $pagespec} |= $deptype;
return 1;
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}
# Add explicit dependencies for influences.
my $sub=pagespec_translate($pagespec);
return unless defined $sub;
foreach my $p (keys %pagesources) {
my $r=$sub->($p, location => $page);
my $i=$r->influences;
my $static=$r->influences_static;
foreach my $k (keys %$i) {
next unless $r || $static || $k eq $page;
$depends_simple{$page}{lc $k} |= $i->{$k};
}
last if $static;
}
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$depends{$page}{$pagespec} |= $deptype;
return 1;
}
sub deptype (@) {
my $deptype=0;
foreach my $type (@_) {
if ($type eq 'presence') {
$deptype |= $DEPEND_PRESENCE;
}
elsif ($type eq 'links') {
$deptype |= $DEPEND_LINKS;
}
elsif ($type eq 'content') {
$deptype |= $DEPEND_CONTENT;
}
}
return $deptype;
}
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my $file_prune_regexp;
2010-04-20 20:08:29 +02:00
sub file_pruned ($) {
my $file=shift;
if (defined $config{include} && length $config{include}) {
return 0 if $file =~ m/$config{include}/;
}
2007-01-28 01:35:32 +01:00
if (! defined $file_prune_regexp) {
$file_prune_regexp='('.join('|', @{$config{wiki_file_prune_regexps}}).')';
$file_prune_regexp=qr/$file_prune_regexp/;
}
return $file =~ m/$file_prune_regexp/;
}
2007-01-28 01:35:32 +01:00
sub define_gettext () {
# If translation is needed, redefine the gettext function to do it.
# Otherwise, it becomes a quick no-op.
my $gettext_obj;
my $getobj;
if ((exists $ENV{LANG} && length $ENV{LANG}) ||
(exists $ENV{LC_ALL} && length $ENV{LC_ALL}) ||
(exists $ENV{LC_MESSAGES} && length $ENV{LC_MESSAGES})) {
$getobj=sub {
$gettext_obj=eval q{
2007-01-28 01:35:32 +01:00
use Locale::gettext q{textdomain};
Locale::gettext->domain('ikiwiki')
};
};
2007-01-28 01:35:32 +01:00
}
no warnings 'redefine';
*gettext=sub {
$getobj->() if $getobj;
if ($gettext_obj) {
$gettext_obj->get(shift);
}
else {
return shift;
}
};
2010-04-17 18:54:22 +02:00
*ngettext=sub {
$getobj->() if $getobj;
if ($gettext_obj) {
$gettext_obj->nget(@_);
}
else {
return ($_[2] == 1 ? $_[0] : $_[1])
}
};
}
2007-01-28 01:35:32 +01:00
sub gettext {
define_gettext();
gettext(@_);
}
sub ngettext {
define_gettext();
ngettext(@_);
}
sub yesno ($) {
my $val=shift;
return (defined $val && (lc($val) eq gettext("yes") || lc($val) eq "yes" || $val eq "1"));
}
sub inject {
# Injects a new function into the symbol table to replace an
# exported function.
my %params=@_;
# This is deep ugly perl foo, beware.
no strict;
no warnings;
if (! defined $params{parent}) {
$params{parent}='::';
$params{old}=\&{$params{name}};
$params{name}=~s/.*:://;
}
my $parent=$params{parent};
foreach my $ns (grep /^\w+::/, keys %{$parent}) {
$ns = $params{parent} . $ns;
inject(%params, parent => $ns) unless $ns eq '::main::';
*{$ns . $params{name}} = $params{call}
if exists ${$ns}{$params{name}} &&
\&{${$ns}{$params{name}}} == $params{old};
}
use strict;
use warnings;
}
sub add_link ($$;$) {
my $page=shift;
my $link=shift;
my $type=shift;
push @{$links{$page}}, $link
unless grep { $_ eq $link } @{$links{$page}};
if (defined $type) {
$typedlinks{$page}{$type}{$link} = 1;
}
}
sub add_autofile ($$$) {
my $file=shift;
my $plugin=shift;
my $generator=shift;
$autofiles{$file}{plugin}=$plugin;
$autofiles{$file}{generator}=$generator;
}
sub sortspec_translate ($$) {
my $spec = shift;
my $reverse = shift;
my $code = "";
my @data;
while ($spec =~ m{
\s*
(-?) # group 1: perhaps negated
\s*
( # group 2: a word
\w+\([^\)]*\) # command(params)
|
[^\s]+ # or anything else
)
\s*
}gx) {
my $negated = $1;
my $word = $2;
my $params = undef;
if ($word =~ m/^(\w+)\((.*)\)$/) {
# command with parameters
$params = $2;
$word = $1;
}
elsif ($word !~ m/^\w+$/) {
error(sprintf(gettext("invalid sort type %s"), $word));
}
if (length $code) {
$code .= " || ";
}
if ($negated) {
$code .= "-";
}
if (exists $IkiWiki::SortSpec::{"cmp_$word"}) {
if (defined $params) {
push @data, $params;
$code .= "IkiWiki::SortSpec::cmp_$word(\$data[$#data])";
}
else {
$code .= "IkiWiki::SortSpec::cmp_$word(undef)";
}
}
else {
error(sprintf(gettext("unknown sort type %s"), $word));
}
}
if (! length $code) {
# undefined sorting method... sort arbitrarily
return sub { 0 };
}
if ($reverse) {
$code="-($code)";
}
no warnings;
return eval 'sub { '.$code.' }';
}
sub pagespec_translate ($) {
my $spec=shift;
# Convert spec to perl code.
my $code="";
my @data;
while ($spec=~m{
\s* # ignore whitespace
( # 1: match a single word
\! # !
|
\( # (
|
\) # )
|
\w+\([^\)]*\) # command(params)
|
[^\s()]+ # any other text
)
\s* # ignore whitespace
}gx) {
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"}) {
push @data, $2;
$code.="IkiWiki::PageSpec::match_$1(\$page, \$data[$#data], \@_)";
}
else {
push @data, qq{unknown function in pagespec "$word"};
$code.="IkiWiki::ErrorReason->new(\$data[$#data])";
}
}
else {
push @data, $word;
$code.=" IkiWiki::PageSpec::match_glob(\$page, \$data[$#data], \@_)";
}
}
if (! length $code) {
$code="IkiWiki::FailReason->new('empty pagespec')";
}
no warnings;
return eval 'sub { my $page=shift; '.$code.' }';
}
sub pagespec_match ($$;@) {
my $page=shift;
my $spec=shift;
my @params=@_;
# Backwards compatability with old calling convention.
if (@params == 1) {
unshift @params, 'location';
}
my $sub=pagespec_translate($spec);
return IkiWiki::ErrorReason->new("syntax error in pagespec \"$spec\"")
if ! defined $sub;
return $sub->($page, @params);
}
sub pagespec_match_list ($$;@) {
my $page=shift;
my $pagespec=shift;
my %params=@_;
# Backwards compatability with old calling convention.
if (ref $page) {
print STDERR "warning: a plugin (".caller().") is using pagespec_match_list in an obsolete way, and needs to be updated\n";
$params{list}=$page;
$page=$params{location}; # ugh!
}
my $sub=pagespec_translate($pagespec);
error "syntax error in pagespec \"$pagespec\""
if ! defined $sub;
2010-04-12 18:41:32 +02:00
my $sort=sortspec_translate($params{sort}, $params{reverse})
if defined $params{sort};
my @candidates;
if (exists $params{list}) {
@candidates=exists $params{filter}
? grep { ! $params{filter}->($_) } @{$params{list}}
: @{$params{list}};
}
else {
@candidates=exists $params{filter}
? grep { ! $params{filter}->($_) } keys %pagesources
: keys %pagesources;
}
2010-04-12 18:41:32 +02:00
# clear params, remainder is passed to pagespec
$depends{$page}{$pagespec} |= ($params{deptype} || $DEPEND_CONTENT);
my $num=$params{num};
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delete @params{qw{num deptype reverse sort filter list}};
# when only the top matches will be returned, it's efficient to
# sort before matching to pagespec,
if (defined $num && defined $sort) {
@candidates=IkiWiki::SortSpec::sort_pages(
2010-04-12 18:41:32 +02:00
$sort, @candidates);
}
my @matches;
my $firstfail;
my $count=0;
my $accum=IkiWiki::SuccessReason->new();
foreach my $p (@candidates) {
my $r=$sub->($p, %params, location => $page);
error(sprintf(gettext("cannot match pages: %s"), $r))
if $r->isa("IkiWiki::ErrorReason");
unless ($r || $r->influences_static) {
$r->remove_influence($p);
}
$accum |= $r;
if ($r) {
push @matches, $p;
last if defined $num && ++$count == $num;
}
}
# Add simple dependencies for accumulated influences.
my $i=$accum->influences;
foreach my $k (keys %$i) {
$depends_simple{$page}{lc $k} |= $i->{$k};
}
# when all matches will be returned, it's efficient to
# sort after matching
if (! defined $num && defined $sort) {
return IkiWiki::SortSpec::sort_pages(
2010-04-12 18:41:32 +02:00
$sort, @matches);
}
else {
return @matches;
}
}
sub pagespec_valid ($) {
my $spec=shift;
return defined pagespec_translate($spec);
}
sub glob2re ($) {
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my $re=quotemeta(shift);
$re=~s/\\\*/.*/g;
$re=~s/\\\?/./g;
return $re;
}
package IkiWiki::FailReason;
use overload (
'""' => sub { $_[0][0] },
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'0+' => sub { 0 },
'!' => sub { bless $_[0], 'IkiWiki::SuccessReason'},
'&' => sub { $_[0]->merge_influences($_[1], 1); $_[0] },
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'|' => sub { $_[1]->merge_influences($_[0]); $_[1] },
fallback => 1,
);
our @ISA = 'IkiWiki::SuccessReason';
package IkiWiki::SuccessReason;
use overload (
'""' => sub { $_[0][0] },
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'0+' => sub { 1 },
'!' => sub { bless $_[0], 'IkiWiki::FailReason'},
'&' => sub { $_[1]->merge_influences($_[0], 1); $_[1] },
2009-10-08 03:48:03 +02:00
'|' => sub { $_[0]->merge_influences($_[1]); $_[0] },
fallback => 1,
);
sub new {
my $class = shift;
my $value = shift;
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return bless [$value, {@_}], $class;
}
sub influences {
my $this=shift;
$this->[1]={@_} if @_;
my %i=%{$this->[1]};
delete $i{""};
return \%i;
}
sub influences_static {
return ! $_[0][1]->{""};
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}
sub merge_influences {
my $this=shift;
my $other=shift;
my $anded=shift;
if (! $anded || (($this || %{$this->[1]}) &&
2010-04-22 03:38:53 +02:00
($other || %{$other->[1]}))) {
foreach my $influence (keys %{$other->[1]}) {
$this->[1]{$influence} |= $other->[1]{$influence};
}
}
else {
# influence blocker
$this->[1]={};
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}
}
sub remove_influence {
my $this=shift;
my $torm=shift;
delete $this->[1]{$torm};
}
package IkiWiki::ErrorReason;
our @ISA = 'IkiWiki::FailReason';
package IkiWiki::PageSpec;
sub derel ($$) {
my $path=shift;
my $from=shift;
if ($path =~ m!^\./!) {
$from=~s#/?[^/]+$## if defined $from;
$path=~s#^\./##;
2010-04-22 01:45:56 +02:00
$path="$from/$path" if defined $from && length $from;
}
return $path;
}
sub match_glob ($$;@) {
my $page=shift;
my $glob=shift;
my %params=@_;
$glob=derel($glob, $params{location});
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my $regexp=IkiWiki::glob2re($glob);
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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 ($$;@) {
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return match_glob(shift, shift, @_, internal => 1)
}
sub match_page ($$;@) {
my $page=shift;
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my $match=match_glob($page, shift, @_);
if ($match) {
my $source=exists $IkiWiki::pagesources{$page} ?
$IkiWiki::pagesources{$page} :
$IkiWiki::delpagesources{$page};
my $type=defined $source ? IkiWiki::pagetype($source) : undef;
if (! defined $type) {
return IkiWiki::FailReason->new("$page is not a page");
}
}
return $match;
}
sub match_link ($$;@) {
my $page=shift;
my $link=lc(shift);
my %params=@_;
$link=derel($link, $params{location});
my $from=exists $params{location} ? $params{location} : '';
my $linktype=$params{linktype};
my $qualifier='';
if (defined $linktype) {
$qualifier=" with type $linktype";
}
my $links = $IkiWiki::links{$page};
return IkiWiki::FailReason->new("$page has no links", $page => $IkiWiki::DEPEND_LINKS, "" => 1)
2009-10-08 03:48:03 +02:00
unless $links && @{$links};
my $bestlink = IkiWiki::bestlink($from, $link);
foreach my $p (@{$links}) {
next unless (! defined $linktype || exists $IkiWiki::typedlinks{$page}{$linktype}{$p});
if (length $bestlink) {
if ($bestlink eq IkiWiki::bestlink($page, $p)) {
return IkiWiki::SuccessReason->new("$page links to $link$qualifier", $page => $IkiWiki::DEPEND_LINKS, "" => 1)
}
}
else {
if (match_glob($p, $link, %params)) {
return IkiWiki::SuccessReason->new("$page links to page $p$qualifier, matching $link", $page => $IkiWiki::DEPEND_LINKS, "" => 1)
}
my ($p_rel)=$p=~/^\/?(.*)/;
$link=~s/^\///;
if (match_glob($p_rel, $link, %params)) {
return IkiWiki::SuccessReason->new("$page links to page $p_rel$qualifier, matching $link", $page => $IkiWiki::DEPEND_LINKS, "" => 1)
}
}
}
return IkiWiki::FailReason->new("$page does not link to $link$qualifier", $page => $IkiWiki::DEPEND_LINKS, "" => 1);
}
sub match_backlink ($$;@) {
my $ret=match_link($_[1], $_[0], @_);
$ret->influences($_[1] => $IkiWiki::DEPEND_LINKS);
return $ret;
}
sub match_created_before ($$;@) {
my $page=shift;
my $testpage=shift;
my %params=@_;
$testpage=derel($testpage, $params{location});
if (exists $IkiWiki::pagectime{$testpage}) {
if ($IkiWiki::pagectime{$page} < $IkiWiki::pagectime{$testpage}) {
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return IkiWiki::SuccessReason->new("$page created before $testpage", $testpage => $IkiWiki::DEPEND_PRESENCE);
}
else {
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return IkiWiki::FailReason->new("$page not created before $testpage", $testpage => $IkiWiki::DEPEND_PRESENCE);
}
}
else {
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return IkiWiki::ErrorReason->new("$testpage does not exist", $testpage => $IkiWiki::DEPEND_PRESENCE);
}
}
sub match_created_after ($$;@) {
my $page=shift;
my $testpage=shift;
my %params=@_;
$testpage=derel($testpage, $params{location});
if (exists $IkiWiki::pagectime{$testpage}) {
if ($IkiWiki::pagectime{$page} > $IkiWiki::pagectime{$testpage}) {
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return IkiWiki::SuccessReason->new("$page created after $testpage", $testpage => $IkiWiki::DEPEND_PRESENCE);
}
else {
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return IkiWiki::FailReason->new("$page not created after $testpage", $testpage => $IkiWiki::DEPEND_PRESENCE);
}
}
else {
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return IkiWiki::ErrorReason->new("$testpage does not exist", $testpage => $IkiWiki::DEPEND_PRESENCE);
}
}
sub match_creation_day ($$;@) {
if ((localtime($IkiWiki::pagectime{shift()}))[3] == shift) {
return IkiWiki::SuccessReason->new('creation_day matched');
}
else {
return IkiWiki::FailReason->new('creation_day did not match');
}
}
sub match_creation_month ($$;@) {
if ((localtime($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 ($$;@) {
if ((localtime($IkiWiki::pagectime{shift()}))[5] + 1900 == shift) {
return IkiWiki::SuccessReason->new('creation_year matched');
}
else {
return IkiWiki::FailReason->new('creation_year did not match');
}
}
sub match_user ($$;@) {
shift;
my $user=shift;
my %params=@_;
my $regexp=IkiWiki::glob2re($user);
if (! exists $params{user}) {
return IkiWiki::ErrorReason->new("no user specified");
}
if (defined $params{user} && $params{user}=~/^$regexp$/i) {
return IkiWiki::SuccessReason->new("user is $user");
}
elsif (! defined $params{user}) {
return IkiWiki::FailReason->new("not logged in");
}
else {
return IkiWiki::FailReason->new("user is $params{user}, not $user");
}
}
sub match_admin ($$;@) {
shift;
shift;
my %params=@_;
if (! exists $params{user}) {
return IkiWiki::ErrorReason->new("no user specified");
}
if (defined $params{user} && IkiWiki::is_admin($params{user})) {
return IkiWiki::SuccessReason->new("user is an admin");
}
elsif (! defined $params{user}) {
return IkiWiki::FailReason->new("not logged in");
}
else {
return IkiWiki::FailReason->new("user is not an admin");
}
}
sub match_ip ($$;@) {
shift;
my $ip=shift;
my %params=@_;
if (! exists $params{ip}) {
return IkiWiki::ErrorReason->new("no IP specified");
}
if (defined $params{ip} && lc $params{ip} eq lc $ip) {
return IkiWiki::SuccessReason->new("IP is $ip");
}
else {
return IkiWiki::FailReason->new("IP is $params{ip}, not $ip");
}
}
package IkiWiki::SortSpec;
# This is in the SortSpec namespace so that the $a and $b that sort() uses
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# are easily available in this namespace, for cmp functions to use them.
sub sort_pages {
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my $f=shift;
sort $f @_
}
sub cmp_title {
IkiWiki::pagetitle(IkiWiki::basename($a))
cmp
IkiWiki::pagetitle(IkiWiki::basename($b))
}
sub cmp_mtime { $IkiWiki::pagemtime{$b} <=> $IkiWiki::pagemtime{$a} }
sub cmp_age { $IkiWiki::pagectime{$b} <=> $IkiWiki::pagectime{$a} }
1