-use File::Find;
-use Memoize;
-use File::Spec;
-use HTML::Template;
-
-BEGIN {
- $blosxom::version="is a proper perl module too much to ask?";
- do "/usr/bin/markdown";
-}
-
-$ENV{PATH}="/usr/local/bin:/usr/bin:/bin";
-my ($srcdir, $templatedir, $destdir, %links, %oldlinks, %oldpagemtime,
- %renderedfiles, %pagesources);
-my $wiki_link_regexp=qr/\[\[([^\s]+)\]\]/;
-my $wiki_file_regexp=qr/(^[-A-Za-z0-9_.:\/+]+$)/;
-my $wiki_file_prune_regexp=qr!((^|/).svn/|\.\.|^\.|\/\.|\.html?$)!;
-my $verbose=0;
-my $wikiname="wiki";
-my $default_pagetype=".mdwn";
-my $cgi=0;
-my $url="";
-my $cgiurl="";
-my $historyurl="";
-my $svn=1;
-my $anonok=0;
-
-sub usage { #{{{
- die "usage: ikiwiki [options] source templates dest\n";
-} #}}}
-
-sub error ($) { #{{{
- if ($cgi) {
- print "Content-type: text/html\n\n";
- print "Error: @_\n";
- exit 1;
- }
- else {
- die @_;
- }
-} #}}}
-
-sub debug ($) { #{{{
- print "@_\n" if $verbose;
-} #}}}
-
-sub mtime ($) { #{{{
- my $page=shift;
-
- return (stat($page))[9];
-} #}}}
-
-sub possibly_foolish_untaint ($) { #{{{
- my $tainted=shift;
- my ($untainted)=$tainted=~/(.*)/;
- 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 =~ /\.mdwn$/) {
- return ".mdwn";
- }
- else {
- return "unknown";
- }
-} #}}}
-
-sub pagename ($) { #{{{
- my $file=shift;
-
- my $type=pagetype($file);
- my $page=$file;
- $page=~s/\Q$type\E*$// unless $type eq 'unknown';
- return $page;
-} #}}}
-
-sub htmlpage ($) { #{{{
- my $page=shift;
-
- return $page.".html";
-} #}}}
-
-sub readfile ($) { #{{{
- my $file=shift;
-
- local $/=undef;
- open (IN, "$file") || error("failed to read $file: $!");
- my $ret=<IN>;
- close IN;
- return $ret;
-} #}}}
-
-sub writefile ($$) { #{{{
- my $file=shift;
- my $content=shift;
-
- my $dir=dirname($file);
- if (! -d $dir) {
- my $d="";
- foreach my $s (split(m!/+!, $dir)) {
- $d.="$s/";
- if (! -d $d) {
- mkdir($d) || error("failed to create directory $d: $!");
- }
- }
- }
-
- open (OUT, ">$file") || error("failed to write $file: $!");
- print OUT $content;
- close OUT;
-} #}}}
-
-sub findlinks ($) { #{{{
- my $content=shift;
-
- my @links;
- while ($content =~ /$wiki_link_regexp/g) {
- push @links, lc($1);
- }
- return @links;
-} #}}}
-
-# Given a page and the text of a link on the page, determine which existing
-# page that link best points to. Prefers pages under a subdirectory with
-# the same name as the source page, failing that goes down the directory tree
-# to the base looking for matching pages.
-sub bestlink ($$) { #{{{
- my $page=shift;
- my $link=lc(shift);
-
- my $cwd=$page;
- do {
- my $l=$cwd;
- $l.="/" if length $l;
- $l.=$link;
-
- if (exists $links{$l}) {
- #debug("for $page, \"$link\", use $l");
- return $l;
- }
- } while $cwd=~s!/?[^/]+$!!;
-
- #print STDERR "warning: page $page, broken link: $link\n";
- return "";
-} #}}}
-
-sub isinlinableimage ($) { #{{{
- my $file=shift;
-
- $file=~/\.(png|gif|jpg|jpeg)$/;
-} #}}}
-
-sub htmllink { #{{{
- my $page=shift;
- my $link=shift;
- my $noimagelink=shift;
-
- my $bestlink=bestlink($page, $link);
-
- return $link if $page eq $bestlink;
-
- # TODO BUG: %renderedfiles may not have it, if the linked to page
- # was also added and isn't yet rendered! Note that this bug is
- # masked by the bug mentioned below that makes all new files
- # be rendered twice.
- if (! grep { $_ eq $bestlink } values %renderedfiles) {
- $bestlink=htmlpage($bestlink);
- }
- if (! grep { $_ eq $bestlink } values %renderedfiles) {
- return "<a href=\"$cgiurl?do=create&page=$link&from=$page\">?</a>$link"
- }
-
- $bestlink=File::Spec->abs2rel($bestlink, dirname($page));
-
- if (! $noimagelink && isinlinableimage($bestlink)) {
- return "<img src=\"$bestlink\">";
- }
- return "<a href=\"$bestlink\">$link</a>";
-} #}}}
-
-sub linkify ($$) { #{{{
- my $content=shift;
- my $file=shift;
-
- $content =~ s/$wiki_link_regexp/htmllink(pagename($file), $1)/eg;
-
- return $content;
-} #}}}
-
-sub htmlize ($$) { #{{{
- my $type=shift;
- my $content=shift;
-
- if ($type eq '.mdwn') {
- return Markdown::Markdown($content);
- }
- else {
- error("htmlization of $type not supported");
- }
-} #}}}
-
-sub backlinks ($) { #{{{
- my $page=shift;
-
- my @links;
- foreach my $p (keys %links) {
- next if bestlink($page, $p) eq $page;
- if (grep { length $_ && bestlink($p, $_) eq $page } @{$links{$p}}) {
- my $href=File::Spec->abs2rel(htmlpage($p), dirname($page));
-
- # Trim common dir prefixes from both pages.
- my $p_trimmed=$p;
- my $page_trimmed=$page;
- my $dir;
- 1 while (($dir)=$page_trimmed=~m!^([^/]+/)!) &&
- defined $dir &&
- $p_trimmed=~s/^\Q$dir\E// &&
- $page_trimmed=~s/^\Q$dir\E//;
-
- push @links, { url => $href, page => $p_trimmed };
- }
- }
-
- return @links;
-} #}}}
-
-sub parentlinks ($) { #{{{
- my $page=shift;
-
- my @ret;
- my $pagelink="";
- my $path="";
- my $skip=1;
- foreach my $dir (reverse split("/", $page)) {
- if (! $skip) {
- unshift @ret, { url => "$path$dir.html", page => $dir };
- }
- else {
- $skip=0;
- }
- $path.="../";
- }
- return @ret;
-} #}}}
-
-sub indexlink () { #{{{
- return "<a href=\"$url\">$wikiname</a>/ ";
-} #}}}
-
-sub finalize ($$) { #{{{
- my $content=shift;
- my $page=shift;
-
- my $title=basename($page);
- $title=~s/_/ /g;
-
- my $template=HTML::Template->new(blind_cache => 1,
- filename => "$templatedir/page.tmpl");
-
- if (length $cgiurl) {
- $template->param(editurl => "$cgiurl?do=edit&page=$page");
- $template->param(recentchangesurl => "$cgiurl?do=recentchanges");
- }
-
- if (length $historyurl) {
- my $u=$historyurl;
- $u=~s/\[\[\]\]/$pagesources{$page}/g;
- $template->param(historyurl => $u);
- }
-
- $template->param(
- title => $title,
- indexlink => $url,
- wikiname => $wikiname,
- parentlinks => [parentlinks($page)],
- content => $content,
- backlinks => [backlinks($page)],
- );
-
- return $template->output;
-} #}}}
-
-sub render ($) { #{{{
- my $file=shift;
-
- my $type=pagetype($file);
- my $content=readfile("$srcdir/$file");
- if ($type ne 'unknown') {
- my $page=pagename($file);
-
- $links{$page}=[findlinks($content)];
-
- $content=linkify($content, $file);
- $content=htmlize($type, $content);
- $content=finalize($content, $page);
-
- writefile("$destdir/".htmlpage($page), $content);
- $oldpagemtime{$page}=time;
- $renderedfiles{$page}=htmlpage($page);
- }
- else {
- $links{$file}=[];
- writefile("$destdir/$file", $content);
- $oldpagemtime{$file}=time;
- $renderedfiles{$file}=$file;
- }
-} #}}}
-
-sub loadindex () { #{{{
- open (IN, "$srcdir/.ikiwiki/index") || return;
- while (<IN>) {
- $_=possibly_foolish_untaint($_);
- chomp;
- my ($mtime, $file, $rendered, @links)=split(' ', $_);
- my $page=pagename($file);
- $pagesources{$page}=$file;
- $oldpagemtime{$page}=$mtime;
- $oldlinks{$page}=[@links];
- $links{$page}=[@links];
- $renderedfiles{$page}=$rendered;
- }
- close IN;
-} #}}}
-
-sub saveindex () { #{{{
- if (! -d "$srcdir/.ikiwiki") {
- mkdir("$srcdir/.ikiwiki");
- }
- open (OUT, ">$srcdir/.ikiwiki/index") || error("cannot write to index: $!");
- foreach my $page (keys %oldpagemtime) {
- print OUT "$oldpagemtime{$page} $pagesources{$page} $renderedfiles{$page} ".
- join(" ", @{$links{$page}})."\n"
- if $oldpagemtime{$page};
- }
- close OUT;
-} #}}}
-
-sub rcs_update () { #{{{
- if (-d "$srcdir/.svn") {
- if (system("svn", "update", "--quiet", $srcdir) != 0) {
- warn("svn update failed\n");
- }
- }
-} #}}}
-
-sub rcs_commit ($) { #{{{
- my $message=shift;
-
- if (-d "$srcdir/.svn") {
- if (system("svn", "commit", "--quiet", "-m",
- possibly_foolish_untaint($message), $srcdir) != 0) {
- warn("svn commit failed\n");
- }
- }
-} #}}}
-
-sub rcs_add ($) { #{{{
- my $file=shift;
-
- if (-d "$srcdir/.svn") {
- my $parent=dirname($file);
- while (! -d "$srcdir/$parent/.svn") {
- $file=$parent;
- $parent=dirname($file);
- }
-
- if (system("svn", "add", "--quiet", "$srcdir/$file") != 0) {
- warn("svn add failed\n");
- }
- }
-} #}}}
-
-sub rcs_recentchanges ($) { #{{{
- my $num=shift;
- my @ret;
-
- eval q{use Date::Parse};
- eval q{use Time::Duration};
-
- if (-d "$srcdir/.svn") {
- my $info=`LANG=C svn info $srcdir`;
- my ($svn_url)=$info=~/^URL: (.*)$/m;
-
- # FIXME: currently assumes that the wiki is somewhere
- # under trunk in svn, doesn't support other layouts.
- my ($svn_base)=$svn_url=~m!(/trunk(?:/.*)?)$!;
-
- my $div=qr/^--------------------+$/;
- my $infoline=qr/^r(\d+)\s+\|\s+([^\s]+)\s+\|\s+(\d+-\d+-\d+\s+\d+:\d+:\d+\s+[-+]?\d+).*/;
- my $state='start';
- my ($rev, $user, $when, @pages, $message);
- foreach (`LANG=C svn log -v '$svn_url'`) {
- chomp;
- if ($state eq 'start' && /$div/) {
- $state='header';
- }
- elsif ($state eq 'header' && /$infoline/) {
- $rev=$1;
- $user=$2;
- $when=concise(ago(time - str2time($3)));
- }
- elsif ($state eq 'header' && /^\s+[A-Z]\s+\Q$svn_base\E\/(.+)$/) {
- push @pages, { link => htmllink("", pagename($1), 1) }
- if length $1;
- }
- elsif ($state eq 'header' && /^$/) {
- $state='body';
- }
- elsif ($state eq 'body' && /$div/) {
- push @ret, { rev => $rev, user => $user,
- when => $when, message => $message,
- pages => [@pages] } if @pages;
- return @ret if @ret >= $num;
-
- $state='header';
- $message=$rev=$user=$when=undef;
- @pages=();
- }
- elsif ($state eq 'body') {
- $message.="$_<br>\n";
- }
- }
- }
-
- return @ret;
-} #}}}
-
-sub prune ($) { #{{{
- my $file=shift;
-
- unlink($file);
- my $dir=dirname($file);
- while (rmdir($dir)) {
- $dir=dirname($dir);
- }
-} #}}}
-
-sub refresh () { #{{{
- # Find existing pages.
- my %exists;
- my @files;
- find({
- no_chdir => 1,
- wanted => sub {
- if (/$wiki_file_prune_regexp/) {
- $File::Find::prune=1;
- }
- elsif (! -d $_) {
- my ($f)=/$wiki_file_regexp/; # untaint
- if (! defined $f) {
- warn("skipping bad filename $_\n");
- }
- else {
- $f=~s/^\Q$srcdir\E\/?//;
- push @files, $f;
- $exists{pagename($f)}=1;
- }
- }
- },
- }, $srcdir);
-
- my %rendered;
-
- # check for added or removed pages
- my @add;
- foreach my $file (@files) {
- my $page=pagename($file);
- if (! $oldpagemtime{$page}) {
- debug("new page $page");
- push @add, $file;
- $links{$page}=[];
- $pagesources{$page}=$file;
- }
- }
- my @del;
- foreach my $page (keys %oldpagemtime) {
- if (! $exists{$page}) {
- debug("removing old page $page");
- push @del, $renderedfiles{$page};
- prune($destdir."/".$renderedfiles{$page});
- delete $renderedfiles{$page};
- $oldpagemtime{$page}=0;
- delete $pagesources{$page};
- }
- }
-
- # render any updated files
- foreach my $file (@files) {
- my $page=pagename($file);
-
- if (! exists $oldpagemtime{$page} ||
- mtime("$srcdir/$file") > $oldpagemtime{$page}) {
- debug("rendering changed file $file");
- render($file);
- $rendered{$file}=1;
- }
- }
-
- # if any files were added or removed, check to see if each page
- # needs an update due to linking to them
- # TODO: inefficient; pages may get rendered above and again here;
- # problem is the bestlink may have changed and we won't know until
- # now
- if (@add || @del) {
-FILE: foreach my $file (@files) {
- my $page=pagename($file);
- foreach my $f (@add, @del) {
- my $p=pagename($f);
- foreach my $link (@{$links{$page}}) {
- if (bestlink($page, $link) eq $p) {
- debug("rendering $file, which links to $p");
- render($file);
- $rendered{$file}=1;
- next FILE;
- }
- }
- }
- }
- }
-
- # handle backlinks; if a page has added/removed links, update the
- # pages it links to
- # TODO: inefficient; pages may get rendered above and again here;
- # problem is the backlinks could be wrong in the first pass render
- # above
- if (%rendered) {
- my %linkchanged;
- foreach my $file (keys %rendered, @del) {
- my $page=pagename($file);
- if (exists $links{$page}) {
- foreach my $link (@{$links{$page}}) {
- $link=bestlink($page, $link);
- if (length $link &&
- ! exists $oldlinks{$page} ||
- ! grep { $_ eq $link } @{$oldlinks{$page}}) {
- $linkchanged{$link}=1;
- }
- }
- }
- if (exists $oldlinks{$page}) {
- foreach my $link (@{$oldlinks{$page}}) {
- $link=bestlink($page, $link);
- if (length $link &&
- ! exists $links{$page} ||
- ! grep { $_ eq $link } @{$links{$page}}) {
- $linkchanged{$link}=1;
- }
- }
- }
- }
- foreach my $link (keys %linkchanged) {
- my $linkfile=$pagesources{$link};
- if (defined $linkfile) {
- debug("rendering $linkfile, to update its backlinks");
- render($linkfile);
- }
- }
- }
-} #}}}
-
-# Generates a C wrapper program for running ikiwiki in a specific way.
-# The wrapper may be safely made suid.
-sub gen_wrapper ($$) { #{{{
- my ($svn, $rebuild)=@_;
-
- eval q{use Cwd 'abs_path'};
- $srcdir=abs_path($srcdir);
- $destdir=abs_path($destdir);
- my $this=abs_path($0);
- if (! -x $this) {
- error("$this doesn't seem to be executable");
- }
-
- my @params=($srcdir, $templatedir, $destdir, "--wikiname=$wikiname");
- push @params, "--verbose" if $verbose;
- push @params, "--rebuild" if $rebuild;
- push @params, "--nosvn" if !$svn;
- push @params, "--cgi" if $cgi;
- push @params, "--url=$url" if $url;
- push @params, "--cgiurl=$cgiurl" if $cgiurl;
- push @params, "--historyurl=$historyurl" if $historyurl;
- push @params, "--anonok" if $anonok;
- my $params=join(" ", @params);
- my $call='';
- foreach my $p ($this, $this, @params) {
- $call.=qq{"$p", };
- }
- $call.="NULL";
-
- my @envsave;
- push @envsave, qw{REMOTE_ADDR QUERY_STRING REQUEST_METHOD REQUEST_URI
- CONTENT_TYPE CONTENT_LENGTH GATEWAY_INTERFACE
- HTTP_COOKIE} if $cgi;
- my $envsave="";
- foreach my $var (@envsave) {
- $envsave.=<<"EOF"
- if ((s=getenv("$var")))
- asprintf(&newenviron[i++], "%s=%s", "$var", s);
-EOF
- }
-
- open(OUT, ">ikiwiki-wrap.c") || error("failed to write ikiwiki-wrap.c: $!");;
- print OUT <<"EOF";
-/* A wrapper for ikiwiki, can be safely made suid. */
-#define _GNU_SOURCE
-#include <stdio.h>
-#include <unistd.h>
-#include <stdlib.h>
-#include <string.h>
-
-extern char **environ;
-
-int main (int argc, char **argv) {
- /* Sanitize environment. */
- char *s;
- char *newenviron[$#envsave+3];
- int i=0;
-$envsave
- newenviron[i++]="HOME=$ENV{HOME}";
- newenviron[i]=NULL;
- environ=newenviron;
-
- if (argc == 2 && strcmp(argv[1], "--params") == 0) {
- printf("$params\\n");
- exit(0);
- }
-
- execl($call);
- perror("failed to run $this");
- exit(1);
-}
-EOF
- close OUT;
- if (system("gcc", "ikiwiki-wrap.c", "-o", "ikiwiki-wrap") != 0) {
- error("failed to compile ikiwiki-wrap.c");
- }
- unlink("ikiwiki-wrap.c");
- print "successfully generated ikiwiki-wrap\n";
- exit 0;
-} #}}}
-
-sub cgi_recentchanges ($) { #{{{
- my $q=shift;
-
- my $template=HTML::Template->new(
- filename => "$templatedir/recentchanges.tmpl");
- $template->param(
- title => "RecentChanges",
- indexlink => $url,
- wikiname => $wikiname,
- changelog => [rcs_recentchanges(100)],
- );
- print $q->header, $template->output;
-} #}}}
-
-sub cgi_signin ($$) { #{{{
- my $q=shift;
- my $session=shift;
-
- eval q{use CGI::FormBuilder};
- my $form = CGI::FormBuilder->new(
- title => "$wikiname signin",
- fields => [qw(do page name password confirm_password email)],
- header => 1,
- method => 'POST',
- validate => {
- name => '/^\w+$/',
- confirm_password => {
- perl => q{eq $form->field("password")},