This is my second cut at a feature like that requested in [[todo/Moving_Pages]].
It can also be found here.
A few shortcomings exist:
- No precautions whatsoever are made to protect against race conditions or failures
in the rcs_move function. I didn't even do the
cgi_editpage thing where I hold
the lock and render afterwards (mostly because the copy I was editing was not
up-to-date enough to have that code). Although FAILED_SAVE is in movepage.tmpl,
no code activates it yet.
- Some code is duplicated between cgi_movepage and cgi_editpage, as well
as rcs_commit and rcs_move.
- The user interface is pretty lame. I couldn't figure out a good way to let
the user specify which directory to move things to without implementing a
FileChooser thing.
- No redirect pages like those mentioned on [[todo/Moving_Pages]] exist yet,
so none are created.
- I added a Move link to page.tmpl but it may belong better someplace else --
maybe editpage.tmpl? Not sure.
- from is redundant with page so far -- but since the Move links could someday
come from someplace other than the page itself I kept it around.
- If I move foo.mdwn to bar.mdwn, foo/* should move too, probably.
Looks like a good start, although I agree about many of the points above,
and also feel that something needs to be done about rcses that don't
implement a move operation -- falling back to an add and delete.
--[[Joey]]
Hmm. Shouldn't that be done on a by-RCS basis, though? (i.e. implemented
by backends in the rcs_move function)
Probably, yes, but maybe there's a way to avoid duplicating code for that
in several of them.
Also, how should ikiwiki react if a page is edited (say, by another user)
before it is moved? Bail, or shrug and proceed?
The important thing is to keep in mind that the page could be edited,
moved, deleted, etc in between the user starting the move and the move
happening. So, the code really needs to deal with all of these cases in
some way. It seems fine to me to go ahead with the move even if the page
was edited. If the page was deleted or moved, it seems reasonable to exit
with an error.
Another set of issues exists if a separate web user is trying to edit the
page at the same time. We'll have to make sure that something sane
happens there; will ikiwiki re-add the moved page under the old name if
the user saves their edit after the move? Could be confusing.. I think it
probably errors out instead, but I'm not sure. Of course, this is an
issue that occurs if the page is moved using a regular svn commit too, so
it's not really your concern in a way. :-)
I wrote a seperate patch to address this -- it's in [[disappearing_pages]]. --Ethan
diff -urNX ignorepats ikiwiki/IkiWiki/CGI.pm ikidev/IkiWiki/CGI.pm
--- ikiwiki/IkiWiki/CGI.pm 2007-02-14 18:17:12.000000000 -0800
+++ ikidev/IkiWiki/CGI.pm 2007-02-22 18:54:23.194982000 -0800
@@ -561,6 +561,106 @@
}
} #}}}
+sub cgi_movepage($$) {
+ my $q = shift;
+ my $session = shift;
+ eval q{use CGI::FormBuilder};
+ error($@) if $@;
+ my @fields=qw(do from rcsinfo page newdir newname comments);
+ my @buttons=("Rename Page", "Cancel");
+
+ my $form = CGI::FormBuilder->new(
+ fields => \@fields,
+ header => 1,
+ charset => "utf-8",
+ method => 'POST',
+ action => $config{cgiurl},
+ template => (-e "$config{templatedir}/movepage.tmpl" ?
+ {template_params("movepage.tmpl")} : ""),
+ );
+ run_hooks(formbuilder_setup => sub {
+ shift->(form => $form, cgi => $q, session => $session);
+ });
+
+ decode_form_utf8($form);
+
+ # This untaint is safe because if the page doesn't exist, bail.
+ my $page = $form->field('page');
+ $page = possibly_foolish_untaint($page);
+ if (! exists $pagesources{$page}) {
+ error("page does not exist");
+ }
+ my $file=$pagesources{$page};
+ my $type=pagetype($file);
+
+ my $from;
+ if (defined $form->field('from')) {
+ ($from)=$form->field('from')=~/$config{wiki_file_regexp}/;
+ }
+
+ $form->field(name => "do", type => 'hidden');
+ $form->field(name => "from", type => 'hidden');
+ $form->field(name => "rcsinfo", type => 'hidden');
+ $form->field(name => "newdir", type => 'text', size => 80);
+ $form->field(name => "page", value => $page, force => 1);
+ $form->field(name => "newname", type => "text", size => 80);
+ $form->field(name => "comments", type => "text", size => 80);
+ $form->tmpl_param("can_commit", $config{rcs});
+ $form->tmpl_param("indexlink", indexlink());
+ $form->tmpl_param("baseurl", baseurl());
+
+ if (! $form->submitted) {
+ $form->field(name => "rcsinfo", value => rcs_prepedit($file),
+ force => 1);
+ }
+
+ if ($form->submitted eq "Cancel") {
+ redirect($q, "$config{url}/".htmlpage($page));
+ return;
+ }
+
+ if (! $form->submitted || ! $form->validate) {
+ check_canedit($page, $q, $session);
+ $form->tmpl_param("page_select", 0);
+ $form->field(name => "page", type => 'hidden');
+ $form->field(name => "type", type => 'hidden');
+ $form->title(sprintf(gettext("moving %s"), pagetitle($page)));
+ my $pname = basename($page);
+ my $dname = dirname($page);
+ if (! defined $form->field('newname') ||
+ ! length $form->field('newname')) {
+ $form->field(name => "newname",
+ value => pagetitle($pname, 1), force => 1);
+ }
+ if (! defined $form->field('newdir') ||
+ ! length $form->field('newdir')) {
+ $form->field(name => "newdir",
+ value => pagetitle($dname, 1), force => 1);
+ }
+ print $form->render(submit => \@buttons);
+ }
+ else{
+ # This untaint is safe because titlepage removes any problematic
+ # characters.
+ my ($newname)=$form->field('newname');
+ $newname=titlepage(possibly_foolish_untaint($newname));
+ my ($newdir)=$form->field('newdir');
+ $newdir=titlepage(possibly_foolish_untaint($newdir));
+ if (! defined $newname || ! length $newname || file_pruned($newname, $config{srcdir}) || $newname=~/^\//) {
+ error("bad page name");
+ }
+ check_canedit($page, $q, $session);
+
+ my $newpage = ($newdir?"$newdir/":"") . $newname;
+ my $newfile = $newpage . ".$type";
+ my $message = $form->field('comments');
+ unlockwiki();
+ rcs_move($file, $newfile, $message, $form->field("rcsinfo"),
+ $session->param("name"), $ENV{REMOTE_ADDR});
+ redirect($q, "$config{url}/".htmlpage($newpage));
+ }
+}
+
sub cgi_getsession ($) { #{{{
my $q=shift;
@@ -656,6 +756,9 @@
elsif (defined $session->param("postsignin")) {
cgi_postsignin($q, $session);
}
+ elsif ($do eq 'move') {
+ cgi_movepage($q, $session);
+ }
elsif ($do eq 'prefs') {
cgi_prefs($q, $session);
}
diff -urNX ignorepats ikiwiki/IkiWiki/Rcs/svn.pm ikidev/IkiWiki/Rcs/svn.pm
--- ikiwiki/IkiWiki/Rcs/svn.pm 2007-01-27 16:04:48.000000000 -0800
+++ ikidev/IkiWiki/Rcs/svn.pm 2007-02-22 01:51:29.923626000 -0800
@@ -60,6 +60,34 @@
}
} #}}}
+sub rcs_move ($$$$;$$) {
+ my $file=shift;
+ my $newname=shift;
+ my $message=shift;
+ my $rcstoken=shift;
+ my $user=shift;
+ my $ipaddr=shift;
+ if (defined $user) {
+ $message="web commit by $user".(length $message ? ": $message" : "");
+ }
+ elsif (defined $ipaddr) {
+ $message="web commit from $ipaddr".(length $message ? ": $message" : "");
+ }
+
+ chdir($config{srcdir}); # svn merge wants to be here
+
+ if (system("svn", "move", "--quiet",
+ "$file", "$newname") != 0) {
+ return 1;
+ }
+ if (system("svn", "commit", "--quiet",
+ "--encoding", "UTF-8", "-m",
+ possibly_foolish_untaint($message)) != 0) {
+ return 1;
+ }
+ return undef # success
+}
+
sub rcs_commit ($$$;$$) { #{{{
# Tries to commit the page; returns undef on _success_ and
# a version of the page with the rcs's conflict markers on failure.
diff -urNX ignorepats ikiwiki/IkiWiki/Render.pm ikidev/IkiWiki/Render.pm
--- ikiwiki/IkiWiki/Render.pm 2007-02-14 17:00:05.000000000 -0800
+++ ikidev/IkiWiki/Render.pm 2007-02-22 18:30:00.451755000 -0800
@@ -80,6 +80,7 @@
if (length $config{cgiurl}) {
$template->param(editurl => cgiurl(do => "edit", page => $page));
+ $template->param(moveurl => cgiurl(do => "move", page => $page));
$template->param(prefsurl => cgiurl(do => "prefs"));
if ($config{rcs}) {
$template->param(recentchangesurl => cgiurl(do => "recentchanges"));
diff -urNX ignorepats ikiwiki/templates/movepage.tmpl ikidev/templates/movepage.tmpl
--- ikiwiki/templates/movepage.tmpl 1969-12-31 16:00:00.000000000 -0800
+++ ikidev/templates/movepage.tmpl 2007-02-22 18:40:39.751763000 -0800
@@ -0,0 +1,44 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
+ "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html>
+<head>
+<base href="<TMPL_VAR BASEURL>" />
+<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
+<title><TMPL_VAR FORM-TITLE></title>
+<link rel="stylesheet" href="<TMPL_VAR BASEURL>style.css" type="text/css" />
+<link rel="stylesheet" href="<TMPL_VAR BASEURL>local.css" type="text/css" />
+<TMPL_IF NAME="FAVICON">
+<link rel="icon" href="<TMPL_VAR BASEURL><TMPL_VAR FAVICON>" type="image/x-icon" />
+</TMPL_IF>
+</head>
+<body>
+<TMPL_IF NAME="FAILED_SAVE">
+<p>
+<b>Failed to save your changes.</b>
+</p>
+<p>
+Your changes were not able to be saved to disk. The system gave the error:
+<blockquote>
+<TMPL_VAR ERROR_MESSAGE>
+</blockquote>
+Your changes are preserved below, and you can try again to save them.
+</p>
+</TMPL_IF>
+<TMPL_VAR FORM-START>
+<div class="header">
+<span><TMPL_VAR INDEXLINK>/ <TMPL_VAR FORM-TITLE></span>
+</div>
+<TMPL_VAR FIELD-DO>
+<TMPL_VAR FIELD-FROM>
+<TMPL_VAR FIELD-RCSINFO>
+<TMPL_VAR FIELD-PAGE>
+New location: <TMPL_VAR FIELD-NEWDIR>/ <TMPL_VAR FIELD-NEWNAME>
+<br />
+<TMPL_IF NAME="CAN_COMMIT">
+Optional comment about this change:<br />
+<TMPL_VAR FIELD-COMMENTS><br />
+</TMPL_IF>
+<input id="_submit" name="_submit" type="submit" value="Rename Page" /><input id="_submit_2" name="_submit" type="submit" value="Cancel" />
+<TMPL_VAR FORM-END>
+</body>
+</html>
diff -urNX ignorepats ikiwiki/templates/page.tmpl ikidev/templates/page.tmpl
--- ikiwiki/templates/page.tmpl 2006-12-28 12:27:01.000000000 -0800
+++ ikidev/templates/page.tmpl 2007-02-22 01:52:33.078464000 -0800
@@ -32,6 +32,9 @@
<TMPL_IF NAME="EDITURL">
<li><a href="<TMPL_VAR EDITURL>">Edit</a></li>
</TMPL_IF>
+<TMPL_IF NAME="MOVEURL">
+<li><a href="<TMPL_VAR MOVEURL>">Move</a></li>
+</TMPL_IF>
<TMPL_IF NAME="RECENTCHANGESURL">
<li><a href="<TMPL_VAR RECENTCHANGESURL>">RecentChanges</a></li>
</TMPL_IF>
|
