1 The u32 page is excellent, but I wonder if documenting the procedure here
2 would be worthwhile. Who knows, the remote site might disappear. But also
3 there are some variations on the approach that might be useful:
5 * using a python script and the dom library to extract the page names from
6 Special:Allpages (such as
7 <http://www.staff.ncl.ac.uk/jon.dowland/unix/docs/get_pagenames.py>)
8 * Or, querying the mysql back-end to get the names
9 * using WWW::MediaWiki for importing/exporting pages from the wiki, instead
12 Also, some detail on converting mediawiki transclusion to ikiwiki inlines...
18 > "Who knows, the remote site might disappear.". Right now, it appears to
19 > have done just that. -- [[users/Jon]]
21 I have manage to recover most of the site using the Internet Archive. What
22 I was unable to retrieve I have rewritten. You can find a copy of the code
23 at <http://github.com/mithro/media2iki>
27 The iki-fast-load ruby script from the u32 page is given below:
31 # This script is called on the final sorted, de-spammed revision
34 # It doesn't currently check for no-op revisions... I believe
35 # that git-fast-load will dutifully load them even though nothing
36 # happened. I don't care to solve this by adding a file cache
37 # to this script. You can run iki-diff-next.rb to highlight any
38 # empty revisions that need to be removed.
40 # This turns each node into an equivalent file.
41 # It does not convert spaces to underscores in file names.
42 # This would break wikilinks.
43 # I suppose you could fix this with mod_speling or mod_rewrite.
45 # It replaces nodes in the Image: namespace with the files themselves.
49 require 'node-callback'
54 # pipe is the stream to receive the git-fast-import commands
55 # putfrom is true if this branch has existing commits on it, false if not.
56 def format_git_commit(pipe, f)
57 # Need to escape backslashes and double-quotes for git?
58 # No, git breaks when I do this.
59 # For the filename "path with \\", git sez: bad default revision 'HEAD'
60 # filename = '"' + filename.gsub('\\', '\\\\\\\\').gsub('"', '\\"') + '"'
62 # In the calls below, length must be the size in bytes!!
63 # TODO: I haven't figured out how this works in the land of UTF8 and Ruby 1.9.
64 pipe.puts "commit #{f.branch}"
65 pipe.puts "committer #{f.username} <#{f.email}> #{f.timestamp.rfc2822}"
66 pipe.puts "data #{f.message.length}\n#{f.message}\n"
67 pipe.puts "from #{f.branch}^0" if f.putfrom
68 pipe.puts "M 644 inline #{f.filename}"
69 pipe.puts "data #{f.content.length}\n#{f.content}\n"
73 > Would be nice to know where you could get "node-callbacks"... this thing is useless without it. --[[users/simonraven]]
76 Mediawiki.pm - A plugin which supports mediawiki format.
79 # By Scott Bronson. Licensed under the GPLv2+ License.
80 # Extends Ikiwiki to be able to handle Mediawiki markup.
82 # To use the Mediawiki Plugin:
83 # - Install Text::MediawikiFormat
84 # - Turn of prefix_directives in your setup file.
85 # (TODO: we probably don't need to do this anymore?)
86 # prefix_directives => 1,
87 # - Add this plugin on Ikiwiki's path (perl -V, look for @INC)
88 # cp mediawiki.pm something/IkiWiki/Plugin
89 # - And enable it in your setup file
90 # add_plugins => [qw{mediawiki}],
91 # - Finally, turn off the link plugin in setup (this is important)
92 # disable_plugins => [qw{link}],
93 # - Rebuild everything (actually, this should be automatic right?)
94 # - Now all files with a .mediawiki extension should be rendered properly.
97 package IkiWiki::Plugin::mediawiki;
105 # This is a gross hack... We disable the link plugin so that our
106 # linkify routine is always called. Then we call the link plugin
107 # directly for all non-mediawiki pages. Ouch... Hopefully Ikiwiki
108 # will be updated soon to support multiple link plugins.
109 require IkiWiki::Plugin::link;
111 # Even if T:MwF is not installed, we can still handle all the linking.
112 # The user will just see Mediawiki markup rather than formatted markup.
113 eval q{use Text::MediawikiFormat ()};
114 my $markup_disabled = $@;
116 # Work around a UTF8 bug in Text::MediawikiFormat
117 # http://rt.cpan.org/Public/Bug/Display.html?id=26880
118 unless($markup_disabled) {
121 *{'Text::MediawikiFormat::uri_escape'} = \&URI::Escape::uri_escape_utf8;
124 my %metaheaders; # keeps track of redirects for pagetemplate.
125 my %tags; # keeps track of tags for pagetemplate.
129 hook(type => "checkconfig", id => "mediawiki", call => \&checkconfig);
130 hook(type => "scan", id => "mediawiki", call => \&scan);
131 hook(type => "linkify", id => "mediawiki", call => \&linkify);
132 hook(type => "htmlize", id => "mediawiki", call => \&htmlize);
133 hook(type => "pagetemplate", id => "mediawiki", call => \&pagetemplate);
139 return IkiWiki::Plugin::link::checkconfig(@_);
143 my $link_regexp = qr{
144 \[\[(?=[^!]) # beginning of link
145 ([^\n\r\]#|<>]+) # 1: page to link to
147 \# # '#', beginning of anchor
148 ([^|\]]+) # 2: anchor text
153 ([^\]\|]*) # 3: link text
156 ([a-zA-Z]*) # optional trailing alphas
160 # Convert spaces in the passed-in string into underscores.
161 # If passed in undef, returns undef without throwing errors.
165 $var =~ tr{ }{_} if $var;
170 # Underscorize, strip leading and trailing space, and scrunch
171 # multiple runs of spaces into one underscore.
176 $var =~ s/^\s+|\s+$//g; # strip leading and trailing space
177 $var =~ s/\s+/ /g; # squash multiple spaces to one
183 # Translates Mediawiki paths into Ikiwiki paths.
184 # It needs to be pretty careful because Mediawiki and Ikiwiki handle
185 # relative vs. absolute exactly opposite from each other.
189 my $path = scrunch(shift);
191 # always start from root unless we're doing relative shenanigans.
192 $page = "/" unless $path =~ /^(?:\/|\.\.)/;
195 for(split(/\//, "$page/$path")) {
199 push @result, $_ if $_ ne "";
203 # temporary hack working around http://ikiwiki.info/bugs/Can__39__t_create_root_page/index.html?updated
204 # put this back the way it was once this bug is fixed upstream.
205 # This is actually a major problem because now Mediawiki pages can't link from /Git/git-svn to /git-svn. And upstream appears to be uninterested in fixing this bug. :(
206 # return "/" . join("/", @result);
207 return join("/", @result);
211 # Figures out the human-readable text for a wikilink
214 my($page, $inlink, $anchor, $title, $trailing) = @_;
215 my $link = translate_path($page,$inlink);
217 # translate_path always produces an absolute link.
218 # get rid of the leading slash before we display this link.
223 $out = IkiWiki::pagetitle($title);
225 $link = $inlink if $inlink =~ /^\s*\//;
226 $out = $anchor ? "$link#$anchor" : $link;
227 if(defined $title && $title eq "") {
228 # a bare pipe appeared in the link...
229 # user wants to strip namespace and trailing parens.
230 $out =~ s/^[A-Za-z0-9_-]*://;
231 $out =~ s/\s*\(.*\)\s*$//;
233 # A trailing slash suppresses the leading slash
234 $out =~ s#^/(.*)/$#$1#;
236 $out .= $trailing if defined $trailing;
245 if (exists $config{tagbase} && defined $config{tagbase}) {
246 $tag=$config{tagbase}."/".$tag;
253 # Pass a URL and optional text associated with it. This call turns
254 # it into fully-formatted HTML the same way Mediawiki would.
255 # Counter is used to number untitled links sequentially on the page.
256 # It should be set to 1 when you start parsing a new page. This call
257 # increments it automatically.
258 sub generate_external_link
264 # Mediawiki trims off trailing commas.
265 # And apparently it does entity substitution first.
266 # Since we can't, we'll fake it.
268 # trim any leading and trailing whitespace
269 $url =~ s/^\s+|\s+$//g;
271 # url properly terminates on > but must special-case >
273 $url =~ s{(\&(?:gt|lt)\;.*)$}{ $trailer = $1, ''; }eg;
275 # Trim some potential trailing chars, put them outside the link.
277 $url =~ s{([,)]+)$}{ $tmptrail .= $1, ''; }eg;
278 $trailer = $tmptrail . $trailer;
283 $text = "[$$counter]";
286 $text =~ s/^\s+|\s+$//g;
292 return "<a href='$url' title='$title'>$text</a>$trailer";
296 # Called to handle bookmarks like \[[#heading]] or <span class="createlink"><a href="http://u32.net/cgi-bin/ikiwiki.cgi?page=%20text%20&from=Mediawiki_Plugin%2Fmediawiki&do=create" rel="nofollow">?</a>#a</span>
297 sub generate_fragment_link
304 $url = scrunch($url);
306 if(defined($text) && $text ne "") {
307 $text = scrunch($text);
312 $url = underscorize($url);
314 # For some reason Mediawiki puts blank titles on all its fragment links.
315 # I don't see why we would duplicate that behavior here.
316 return "<a href='$url'>$text</a>";
320 sub generate_internal_link
322 my($page, $inlink, $anchor, $title, $trailing, $proc) = @_;
324 # Ikiwiki's link link plugin wrecks this line when displaying on the site.
325 # Until the code highlighter plugin can turn off link finding,
326 # always escape double brackets in double quotes: \[[
327 if($inlink eq '..') {
328 # Mediawiki doesn't touch links like \[[..#hi|ho]].
329 return "\[[" . $inlink . ($anchor?"#$anchor":"") .
330 ($title?"|$title":"") . "]]" . $trailing;
333 my($linkpage, $linktext);
334 if($inlink =~ /^ (:?) \s* Category (\s* \: \s*) ([^\]]*) $/x) {
335 # Handle category links
338 $linkpage = IkiWiki::linkpage(translate_path($page, $inlink));
340 # Produce a link but don't add this page to the given category.
341 $linkpage = tagpage($linkpage);
342 $linktext = ($title ? '' : "Category$sep") .
343 linktext($page, $inlink, $anchor, $title, $trailing);
344 $tags{$page}{$linkpage} = 1;
346 # Add this page to the given category but don't produce a link.
347 $tags{$page}{$linkpage} = 1;
348 &$proc(tagpage($linkpage), $linktext, $anchor);
352 # It's just a regular link
353 $linkpage = IkiWiki::linkpage(translate_path($page, $inlink));
354 $linktext = linktext($page, $inlink, $anchor, $title, $trailing);
357 return &$proc($linkpage, $linktext, $anchor);
365 my $page=$params{page};
366 my $destpage=$params{destpage};
367 my $content=$params{content};
369 return "" if $page ne $destpage;
371 if($content !~ /^ \s* \#REDIRECT \s* \[\[ ( [^\]]+ ) \]\]/x) {
372 # this page isn't a redirect, render it normally.
376 # The rest of this function is copied from the redir clause
377 # in meta::preprocess and actually handles the redirect.
380 $value =~ s/^\s+|\s+$//g;
383 if ($value !~ /^\w+:\/\//) {
385 my ($redir_page, $redir_anchor) = split /\#/, $value;
387 add_depends($page, $redir_page);
388 my $link=bestlink($page, underscorize(translate_path($page,$redir_page)));
389 if (! length $link) {
390 return "<b>Redirect Error:</b> <nowiki>\[[$redir_page]] not found.</nowiki>";
393 $value=urlto($link, $page);
394 $value.='#'.$redir_anchor if defined $redir_anchor;
397 # redir cycle detection
398 $pagestate{$page}{mediawiki}{redir}=$link;
401 while (exists $pagestate{$at}{mediawiki}{redir}) {
403 return "<b>Redirect Error:</b> cycle found on <nowiki>\[[$at]]</nowiki>";
406 $at=$pagestate{$at}{mediawiki}{redir};
409 # it's an external link
410 $value = encode_entities($value);
413 my $redir="<meta http-equiv=\"refresh\" content=\"0; URL=$value\" />";
414 $redir=scrub($redir) if !$safe;
415 push @{$metaheaders{$page}}, $redir;
417 return "Redirecting to $value ...";
421 # Feed this routine a string containing <nowiki>...</nowiki> sections,
422 # this routine calls your callback for every section not within nowikis,
423 # collecting its return values and returning the rewritten string.
432 for(split(/(<nowiki[^>]*>.*?<\/nowiki\s*>)/s, $content)) {
433 $result .= ($state ? $_ : &$proc($_));
441 # Converts all links in the page, wiki and otherwise.
446 my $page=$params{page};
447 my $destpage=$params{destpage};
448 my $content=$params{content};
450 my $file=$pagesources{$page};
451 my $type=pagetype($file);
454 if($type ne 'mediawiki') {
455 return IkiWiki::Plugin::link::linkify(@_);
458 my $redir = check_redirect(%params);
459 return $redir if defined $redir;
461 # this code was copied from MediawikiFormat.pm.
462 # Heavily changed because MF.pm screws up escaping when it does
463 # this awful hack: $uricCheat =~ tr/://d;
464 my $schemas = [qw(http https ftp mailto gopher)];
465 my $re = join "|", map {qr/\Q$_\E/} @$schemas;
466 my $schemes = qr/(?:$re)/;
467 # And this is copied from URI:
468 my $reserved = q(;/?@&=+$,); # NOTE: no colon or [] !
469 my $uric = quotemeta($reserved) . $URI::unreserved . "%#";
471 my $result = skip_nowiki($content, sub {
475 #s/<(a[\s>\/])/<$1/ig;
476 # Disabled because this appears to screw up the aggregate plugin.
477 # I guess we'll rely on Iki to post-sanitize this sort of stuff.
479 # Replace external links, http://blah or [http://blah]
480 s{\b($schemes:[$uric][:$uric]+)|\[($schemes:[$uric][:$uric]+)([^\]]*?)\]}{
481 generate_external_link($1||$2, $3, \$counter)
484 # Handle links that only contain fragments.
485 s{ \[\[ \s* (\#[^|\]'"<>&;]+) (?:\| ([^\]'"<>&;]*))? \]\] }{
486 generate_fragment_link($1, $2)
489 # Match all internal links
491 generate_internal_link($page, $1, $2, $3, $4, sub {
492 my($linkpage, $linktext, $anchor) = @_;
493 return htmllink($page, $destpage, $linkpage,
494 linktext => $linktext,
495 anchor => underscorize(scrunch($anchor)));
506 # Find all WikiLinks in the page.
510 my $page=$params{page};
511 my $content=$params{content};
513 my $file=$pagesources{$page};
514 my $type=pagetype($file);
516 if($type ne 'mediawiki') {
517 return IkiWiki::Plugin::link::scan(@_);
520 skip_nowiki($content, sub {
522 while(/$link_regexp/g) {
523 generate_internal_link($page, $1, '', '', '', sub {
524 my($linkpage, $linktext, $anchor) = @_;
525 push @{$links{$page}}, $linkpage;
534 # Convert the page to HTML.
538 my $page = $params{page};
539 my $content = $params{content};
542 return $content if $markup_disabled;
544 # Do a little preprocessing to babysit Text::MediawikiFormat
545 # If a line begins with tabs, T:MwF won't convert it into preformatted blocks.
546 $content =~ s/^\t/ /mg;
548 my $ret = Text::MediawikiFormat::format($content, {
550 allowed_tags => [#HTML
551 # MediawikiFormat default
552 qw(b big blockquote br caption center cite code dd
553 div dl dt em font h1 h2 h3 h4 h5 h6 hr i li ol p
554 pre rb rp rt ruby s samp small strike strong sub
555 sup table td th tr tt u ul var),
559 qw(del ins), # These should have been added all along.
560 qw(span), # Mediawiki allows span but that's rather scary...?
561 qw(a), # this is unfortunate; should handle links after rendering the page.
565 qw(title align lang dir width height bgcolor),
568 qw(cite), # BLOCKQUOTE, Q
569 qw(size face color), # FONT
570 # For various lists, mostly deprecated but safe
571 qw(type start value compact),
573 qw(summary width border frame rules cellspacing
574 cellpadding valign char charoff colgroup col
575 span abbr axis headers scope rowspan colspan),
576 qw(id class name style), # For CSS
591 # This is only needed to support the check_redirect call.
595 my $page = $params{page};
596 my $destpage = $params{destpage};
597 my $template = $params{template};
599 # handle metaheaders for redirects
600 if (exists $metaheaders{$page} && $template->query(name => "meta")) {
601 # avoid duplicate meta lines
603 $template->param(meta => join("\n", grep { (! $seen{$_}) && ($seen{$_}=1) } @{$metaheaders{$page}}));
606 $template->param(tags => [
608 link => htmllink($page, $destpage, tagpage($_), rel => "tag")
609 }, sort keys %{$tags{$page}}
610 ]) if exists $tags{$page} && %{$tags{$page}} && $template->query(name => "tags");
612 # It's an rss/atom template. Add any categories.
613 if ($template->query(name => "categories")) {
614 if (exists $tags{$page} && %{$tags{$page}}) {
615 $template->param(categories => [map { category => $_ },
616 sort keys %{$tags{$page}}]);
625 Hello. Got ikiwiki running and I'm planning to convert my personal
626 Mediawiki wiki to ikiwiki so I can take offline copies around. If anyone
627 has an old copy of the instructions, or any advice on where to start I'd be
628 glad to hear it. Otherwise I'm just going to chronicle my journey on the
629 page.--[[users/Chadius]]
631 > Today I saw that someone is working to import wikipedia into git.
632 > <http://www.gossamer-threads.com/lists/wiki/foundation/181163>
633 > Since wikipedia uses mediawiki, perhaps his importer will work
634 > on mediawiki in general. It seems to produce output that could be
635 > used by the [[plugins/contrib/mediawiki]] plugin, if the filenames
636 > were fixed to use the right extension. --[[Joey]]